WO2023029391A1 - 一种压缩机及其制造方法 - Google Patents

一种压缩机及其制造方法 Download PDF

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Publication number
WO2023029391A1
WO2023029391A1 PCT/CN2022/077322 CN2022077322W WO2023029391A1 WO 2023029391 A1 WO2023029391 A1 WO 2023029391A1 CN 2022077322 W CN2022077322 W CN 2022077322W WO 2023029391 A1 WO2023029391 A1 WO 2023029391A1
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WIPO (PCT)
Prior art keywords
outer cylinder
stator
compressor
compressor according
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/077322
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English (en)
French (fr)
Inventor
雒应学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Deshan Cnc Technology Co Ltd
Original Assignee
Guangzhou Deshan Cnc Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Deshan Cnc Technology Co Ltd filed Critical Guangzhou Deshan Cnc Technology Co Ltd
Priority to US18/562,446 priority Critical patent/US20240209846A1/en
Priority to KR1020237045236A priority patent/KR20240016340A/ko
Priority to EP22862542.2A priority patent/EP4328450B1/en
Priority to JP2024517187A priority patent/JP2024520872A/ja
Publication of WO2023029391A1 publication Critical patent/WO2023029391A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/0085—Prime movers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/10—Manufacture by removing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F04C2230/231—Manufacture essentially without removing material by permanently joining parts together by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/10—Stators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/60—Shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods

Definitions

  • the invention relates to the field of heat exchange systems, in particular to a compressor and a manufacturing method thereof.
  • the assembly steps of traditional rotary compressors are roughly as follows: first, self-aligning pre-assembly of upper bearings, cylinders, pistons, lower bearings, crankshafts and other components, and then assemble the outer diameter of the upper bearing with the inner diameter of the housing, so that the stator in the housing Put it on the rotor set on the crankshaft, adjust the gap between the stator and the rotor through the gap gauge, and connect it by spot welding.
  • the production method of the above-mentioned compressor has the following defects: since the main shell is rolled from steel plate, its shape tolerance cannot be well guaranteed. Noise, in addition, the strength of the spot welding connection between the shell and the upper bearing is insufficient, which is likely to cause an accident that the upper bearing is separated from the shell.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a compressor, which can reduce the electromagnetic noise during the operation of the compressor and improve the structural stability of the compressor.
  • the compressor of the present invention includes: a base, including an outer cylinder part and an inner cylinder part arranged coaxially, and a bottom wall, the outer cylinder part and the inner cylinder part are connected through the bottom wall, the axial direction of the outer cylinder part is along the up and down direction,
  • the outer cylinder, the inner cylinder and the bottom wall are integrally formed, and an assembly space is formed between the outer cylinder and the inner cylinder;
  • the crankshaft is arranged through the inner cylinder along the axial direction of the inner cylinder;
  • the stator is arranged on the inner wall of the outer cylinder Upper;
  • the rotor is connected with the crankshaft, the stator is sleeved on the outer periphery of the rotor, and both the stator and the rotor are located in the assembly space;
  • the cylinder is arranged under the bottom wall;
  • the piston is arranged in the cylinder, and the piston is connected with the crankshaft;
  • the lower bearing is arranged Below the
  • a waist-shaped hole is opened on the bottom wall, and the waist-shaped hole penetrates the bottom wall along the up-down direction.
  • the compressor further includes an upper cover, and the upper cover is fastened with the upper end of the outer cylindrical part.
  • a notch is provided on the outer side of the upper end of the outer cylinder, and the upper cover fits with the notch.
  • the compressor further includes a lower cover, which is buckled with the lower end of the outer cylindrical part; the side wall of the lower cover is provided with an air inlet.
  • a notch is provided on the outer side of the lower end of the outer cylinder, and the lower cover is in clearance fit with the notch.
  • the compressor further includes a pipe joint passing through the intake portion and communicating with the intake side of the cylinder.
  • the side wall of the pipe joint is provided with a first flange and a second flange, the first flange engages with the air intake portion, and the second flange engages with the cylinder body.
  • the present invention also provides a compressor manufacturing method, which is used to manufacture the above-mentioned compressor, including the following steps: a preparation step, manufacturing the base; a pre-installation step, pre-installing the cylinder body, the piston, the crankshaft, and the lower bearing on the base; In the stator installation step, the stator is installed on the inner wall of the outer cylinder; in the rotor installation step, the rotor is installed on the crankshaft and aligned, and then the lower bearing is tightened.
  • the casing installation step includes: fitting the upper cover on the seam portion of the upper end of the outer cylinder, and fitting the lower cover Fitted on the seam at the lower end of the outer cylinder;
  • the installation steps of the pipe joint include: inserting the pipe joint into the air intake part of the lower cover, and docking with the air intake side of the cylinder body; the welding step, welding the upper cover and the base, and Weld the lower cover to the base.
  • the upper cover and the lower cover are manufactured by a stamping process.
  • the first flange is engaged with the intake portion, and the second flange is engaged with the cylinder body.
  • the three-section body formed by connecting the upper cover, the base and the lower cover is welded by laser.
  • the base is manufactured by a stamping process.
  • rough machining is performed on the stamped blank of the base, and the rough machining sequentially includes: after smoothing the upper end surface of the blank, turning the upper end and the lower end of the outer cylinder respectively. Exit and stop part; use the reaming process to fine ream the stator installation position on the inner wall of the outer cylinder part; smooth the upper end surface of the inner cylinder part and chamfer the end surface of the shaft hole where the crankshaft is installed.
  • finishing processing is carried out on the blank after rough processing, and the finishing processing sequentially includes: taking the stator installation position after fine reaming as the reference for positioning and clamping, and performing internal expansion Self-centering; the shaft hole of the inner cylinder is finely bored, and the lower end surface of the bottom wall is finely ground; the shaft hole of the inner cylinder is honed by the floating hinge honing process.
  • the installation hole and the semicircular hole opened on the bottom wall are obtained through a stamping process.
  • the cylinder body, the piston, the crankshaft, the lower bearing and other components can be pre-installed on the base, and then the stator can be installed on the inner wall of the outer cylinder, and the rotor can be installed on the on the crankshaft, and then align the stator and the rotor. Since the base is a one-piece molded part, the tolerance of the inner cylinder and the outer cylinder can be well controlled during the manufacturing process, and the stator is evenly stressed after being installed on the inner wall of the outer cylinder.
  • stator, rotor and cylinder are all arranged on the base.
  • both the stator and the rotor are supported by the base, which effectively improves the structural stability of the compressor.
  • Fig. 1 is the front view of compressor in the embodiment of the present invention
  • Fig. 2 is the sectional view of compressor in the embodiment of the present invention.
  • Fig. 3 is the sectional view of base in Fig. 2;
  • Fig. 4 is an axonometric view of the base in Fig. 3;
  • Fig. 5 is an axonometric view of another angle of view of the base in Fig. 3;
  • Fig. 6 is a sectional view of the lower cover in Fig. 2;
  • Fig. 7 is the axonometric view of lower cover in Fig. 3;
  • Fig. 8 is a sectional view of the pipe joint in Fig. 2;
  • orientation descriptions such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
  • the meaning of several means one or more, and the meaning of multiple means two or more than two. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number . If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.
  • the compressor of the first aspect of this embodiment includes: a base 100, including an outer cylinder portion 111 and an inner cylinder portion 112 arranged coaxially, and also includes a bottom wall 113, an outer cylinder portion 111 and an inner cylinder
  • the part 112 is connected by the bottom wall 113, the axial direction of the outer cylinder part 111 is along the up and down direction, and the outer cylinder part 111, the inner cylinder part 112 and the bottom wall 113 are integrally formed, that is, the base 100 is an integral molding, and the outer cylinder part 111 and the bottom wall 113 are integrally formed.
  • An assembly space is formed between the inner cylinder parts 112; the crankshaft 105 is arranged through the inner cylinder part 112 along the axial direction of the inner cylinder part 112; the stator 103 is arranged on the inner wall of the outer cylinder part 111; the rotor 104 is coaxially connected with the crankshaft 105 , the stator 103 and the rotor 104 are located in the assembly space, the stator 103 is sleeved on the outer periphery of the rotor 104; the cylinder 106 is arranged below the bottom wall 113; the piston 107 is arranged in the middle of the cylinder 106, and the piston 107 is connected to the crankshaft 105; The bearing 108 is arranged under the cylinder block 106 , and the lower bearing 108 is connected with the crankshaft 105 .
  • the cylinder body 106, the piston 107, the crankshaft 105, the lower bearing 108 and other components can be pre-installed on the base 100, and then the stator 103 can be installed on the outer cylinder part 111 on the inner wall, and install the rotor 104 on the crankshaft 105, and then align the stator 103 and the rotor 104. Since the base 100 is a one-piece molding, the tolerance of the inner cylinder 112 and the outer cylinder 111 can be better during the manufacturing process After the stator 103 is installed on the inner wall of the outer cylinder 111, the force is uniform and the deformation is small.
  • stator 103 and the rotor 104 are all arranged on the base 100.
  • stator 103 and the rotor 104 are all supported by the base 100, which effectively improves the structural stability of the compressor. sex.
  • the base 100 can be integrally formed in various ways, for example, the base 100 can be processed into the base 100 through stamping, cold extrusion and other processing techniques, or can be processed into the base 100 from blanks through cutting processes such as milling and turning.
  • the cross-sectional shape of the base 100 is similar to the letter E, which includes an inner cylinder part 112 and an outer cylinder part 111 arranged coaxially.
  • the inner wall of the outer cylinder part 111 has a stator 103 mounting position for mounting
  • the stator 103 has a shaft hole running through the inner cylinder up and down, and the shaft hole is used to install the crankshaft 105;
  • the outer cylinder part 111 also has the function of the shell, and the inner cylinder part 112 has played the role of the upper bearing of the compressor, that is, the base 100 is regarded as a component after the upper bearing is integrated with a part of the housing.
  • the installation methods of the stator 103, the rotor 104, the crankshaft 105, the cylinder block 106, the piston 107 and the lower bearing 108 can refer to the structure of the existing rotor 104 compressor, and a plurality of bolts pass through the base.
  • Seat 100, cylinder block 106 and lower bearing 108 and these several parts are fixed, and this moment, upper and lower bearing 108 plays the supporting role for crankshaft 105 together.
  • a waist-shaped hole 114 is opened on the bottom wall 113, and the waist-shaped hole 114 penetrates the bottom wall 113 along the up and down direction; wherein the waist-shaped hole 114 has a ventilation function and a flexible buffer function, which reduces the thermal deformation of the pump body by the casing External shocks and other influences can improve the reliability of compressor operation; when the base 100 is manufactured by stamping process, the waist-shaped holes 114 set on the bottom wall 113 and the slots such as bolt fixing holes can all be punched out in the stamping process. ,Increase productivity.
  • the compressor also includes an upper cover 200, which is fastened with the upper end of the outer cylinder part 111; wherein, the outer cylinder part 111 and the upper cover 200 together serve as a part of the entire compressor casing;
  • a notch is provided on the outer side of the upper end of the outer cylinder part 111, and the upper cover 200 fits with the notch part;
  • the mouth can limit the cover 200, so that the installation position of the cover 200 and the base 100 is accurate. Before welding the two, the position of the cover 200 on the mouth can be fine-tuned.
  • the compressor also includes a lower cover 300, which is fastened with the lower end of the outer cylinder part 111; the side wall of the lower cover 300 is provided with an air intake part 310; wherein, the upper cover 200, the base 100
  • the outer cylinder portion 111 and the lower cover 300 are respectively used as three sections of the compressor casing, and the air intake portion 310 is used to connect the intake side of the cylinder 106 with the intake copper pipe.
  • a notch is provided on the outer side of the lower end of the outer cylinder part 111, and the lower cover 300 fits with the notch part in a clearance;
  • the mouth can limit the position of the lower cover 300, so that the installation position of the lower cover 300 and the base 100 is accurate.
  • the fitting position of the lower cover 300 on the mouth can also be fine-tuned; Specifically, since the lower cover 300 fits in clearance with the notch, during the assembly process of the compressor, the lower cover 300 can be installed on the base 100 first, and then the pipe joint 400 can be installed.
  • the lower cover 300 is welded to the base 100; since the pipe joint 400 and the air intake part 310 are interference fit, the above installation method can ensure that the pipe joint 400 is aligned with the intake side of the cylinder block 106. Yes, to prevent air leakage.
  • the bottom of the lower cover 300 is also provided with a raised portion 312, which can be used for positioning and installing the shock absorber of the compressor, while the top of the lower cover 300 is provided with a flared portion 311, the flared portion 311 fits in a gap with the notch part on the outside of the lower end of the outer cylinder part 111 .
  • the upper cover 200, the lower cover 300, and the base 100 can all be made by stamping technology, and the air inlet 310 provided on the lower cover 300 can be made by a side stretching process, while ensuring the accuracy of the parts, Effectively improve production efficiency.
  • the compressor also includes a pipe joint 400, which passes through the air intake portion 310 and communicates with the intake side of the cylinder block 106; wherein, the pipe joint 400 is used to connect the copper pipe in the refrigerant system to the cylinder The intake side of the body 106.
  • the side wall of the pipe joint 400 is provided with a first flange 401 and a second flange 402 , the first flange 401 engages with the intake portion 310 , and the second flange 402 engages with the cylinder body 106 Engagement;
  • the cross section of the first flange 401 is circular, which is used to engage the air intake part 310 to prevent foreign matter from entering the compressor during final welding;
  • the cross section of the second flange 402 is a stepped tooth shape and has a barb structure, after the installation is completed, the sealing of the assembly surface can be ensured, and the high and low pressure air leakage at the suction hole of the compressor can be avoided; and the detailed structure of the pipe joint 400 can refer to existing technologies such as CN108644502A.
  • the manufacturing method of the compressor according to the second aspect of this embodiment is used to manufacture the above-mentioned compressor, including the following steps: a preparation step, manufacturing the base 100; Installed on the base 100; the stator 103 installation step, the stator 103 is installed on the inner wall of the outer cylinder part 111; the rotor 104 installation step, the rotor 104 is installed on the crankshaft 105 and aligned, and then the lower bearing 108 is fastened.
  • the base 100 is an integral part, and the base 100 provides support for the stator 103 and the rotor 104 at the same time, in the pre-installation step, the lower bearing 108 is not tightened first, but after the stator 103 and the rotor 104 are aligned, the lower bearing 108 is tightened. After the bearing 108, the gap between the stator 103 and the rotor 104 is uniform, and the operation is stable, which effectively reduces the electromagnetic noise caused by the uneven gap between the stator 103 and the rotor 104 .
  • the casing installation step includes: fitting the upper cover 200 on the stopper portion at the upper end of the outer cylinder portion 111 First, fit the lower cover 300 on the spigot at the lower end of the outer cylinder 111; the installation steps of the pipe joint 400 include: inserting the pipe joint 400 into the air intake portion 310 of the lower cover 300, and docking with the air intake side of the cylinder block 106
  • the upper cover 200 is welded to the base 100, and the lower cover 300 is welded to the base 100; since the flared part 311 is matched with the notched part, in the compressor assembly process, the flared part can be first 311 on the base 100, then install the pipe joint 400, and when the pipe joint 400 is installed in place and aligned with the air intake side of the cylinder block 106, the lower cover 300 and the base 100 are welded; because the pipe
  • the first flange 401 is engaged with the air intake portion 310, and the second flange 402 is engaged with the cylinder body 106; wherein the cross section of the first flange 401 is circular , used to engage the air intake part 310 to prevent foreign matter from entering the compressor during final welding; while the cross section of the second flange 402 is a stepped tooth shape and has a barb structure, which can ensure the sealing of the assembly surface after installation and avoid compression High and low pressure gas flow at the suction hole of the machine.
  • the three-section body formed by the connection of the upper cover 200, the base 100 and the lower cover 300 is welded by laser; It constitutes the shell part of the whole compressor, the structure of the whole compressor is stable, the load-bearing structure is reasonable, the gap between the stator 103 and the rotor 104 is uniform, and the running noise is low.
  • the base 100 in the middle of the preparation step, can be manufactured through a stamping process to improve production efficiency. Specifically, during stamping, a sheet material with a brand name of SPCC-2D and a thickness of 3.2mm can be selected, and the blanking weight is 264g; the weight of the stamping product is 117g; while meeting the strength requirements of the base 100, the weight is lighter; at the same time, compared with the upper bearing parts cast from HT250 material in the prior art, it meets the load-bearing requirements At the same time, the weight is effectively reduced.
  • the rough processing includes the following steps in sequence: after smoothing the upper end surface of the blank, turning the upper end and the lower end of the outer cylinder part 111 respectively Exit and stop part; use the reaming process to fine ream the stator 103 installation position on the inner wall of the outer cylinder part 111 to ensure that the cylindricity of the stator 103 installation position is less than 0.02; smooth the upper end surface of the inner cylinder part 112 and install the crankshaft
  • the end face of the shaft hole at 105 is chamfered; in the whole roughing step, the central shaft hole in the inner cylinder part 112 of the stamping blank is used as the positioning reference for mechanical roughing.
  • the finishing treatment includes the following steps in turn: using the fine-hinged stator 103 installation position as the positioning and clamping reference, and performing internal expansion and self-centering;
  • the shaft hole of the inner cylinder 112 is finely bored, and the lower end surface of the bottom wall 113 is finely ground;
  • the shaft hole of the inner cylinder 112 is honed by the floating hinge honing process;
  • the end surface and the inner hole are processed by the same clamping , ensure that the perpendicularity between the shaft hole and the end face is less than 0.002, and the coaxiality between the shaft hole of the inner cylinder part 112 and the installation position of the stator 103 is less than 0.03.
  • the mounting holes, semicircular holes, and exhaust grooves 115 formed on the bottom wall 113 can all be processed in the stamping process.

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Abstract

一种压缩机，包括：基座(100)，包括同轴设置外筒部(111)和内筒部(112)，还包括底壁(113)，外筒部(111)和内筒部(112)通过底壁(113)连接，外筒部(111)的轴向沿上下方向，外筒部(111)、内筒部(112)和底壁(113)一体成型，外筒部(111)和内筒部(112)之间形成装配空间；曲轴(105)，沿内筒部(112)的轴向穿过内筒部(112)设置；定子(103)，设置在外筒部(111)的内壁上；转子(104)，与曲轴(105)连接，定子(103)套设在转子(104)外周，定子(103)和转子(104)均位于装配空间当中；缸体(106)，设置在底壁(113)下方；活塞(107)，设置在缸体(106)当中，活塞(107)与曲轴(105)连接；下轴承(108)，设置在缸体(106)下方，下轴承(108)与曲轴(105)连接；应用上述压缩机能够降低压缩机运转当中的电磁噪音，提高压缩机结构稳固性。用于制造该压缩机的制造方法。

Description

一种压缩机及其制造方法 技术领域
本发明涉及热交换系统领域，特别涉及一种压缩机及其制造方法。
背景技术
传统的转子压缩机的组装步骤大致如下：先将包括上轴承、气缸、活塞、下轴承、曲轴等部件进行调心预组装，然后将上轴承外径与壳体内径组装，使得壳体内的定子套在曲轴上设置的转子上，通过间隙规调整定子和转子的间隙后，通过点焊连接。
上述压缩机的生产方式存在以下缺陷：由于主壳体由钢板卷制而成，其形状公差不能很好保证，压缩机运转过程当中，极易发生定子和转子之间的间隙不均，造成电磁噪音，此外，壳体与上轴承之间点焊连接的强度不足，容易造成上轴承与壳体分离的事故。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种压缩机，能够降低压缩机运转当中的电磁噪音，提高压缩机结构稳固性。
本发明的压缩机，包括：基座，包括同轴设置外筒部和内筒部，还包括底壁，外筒部和内筒部通过底壁连接，外筒部的轴向沿上下方向，外筒部、内筒部和底壁一体成型，外筒部和内筒部之间形成装配空间；曲轴，沿内筒部的轴向穿过内筒部设置；定子，设置在外筒部的内壁上；转子，与曲轴连接，定子套设在转子外周，定子和转子均位于装配空间当中；缸体，设置在底壁下方；活塞，设置在缸体当中，活塞与曲轴连接；下轴承，设置在缸体下方，下轴承与曲轴连接。
根据本发明的一些实施例，底壁上开设有腰型孔，腰型孔沿上下方向贯穿底壁。
根据本发明的一些实施例，压缩机还包括上盖，上盖与外筒部上端扣合。
根据本发明的一些实施例，外筒部上端的外侧设置有止口部，上盖与止口部 套合。
根据本发明的一些实施例，压缩机还包括下盖，下盖与外筒部下端扣合；下盖的侧壁开设有进气部。
根据本发明的一些实施例，外筒部下端的外侧设置有止口部，下盖与止口部间隙配合。
根据本发明的一些实施例，压缩机还包括管接头，管接头穿过进气部并与缸体的进气侧连通。
根据本发明的一些实施例，管接头侧壁设置有第一凸缘和第二凸缘，第一凸缘与进气部卡合，第二凸缘与缸体卡合。
本发明还提供一种压缩机制造方法，用于制造上述压缩机，包括如下步骤：准备步骤，制造基座；预装步骤，将缸体、活塞、曲轴，下轴承预装在基座上；定子安装步骤，将定子安装在外筒部内壁上；转子安装步骤，将转子安装在曲轴上并进行调心，而后紧固下轴承。
根据本发明的一些实施例，在转子安装步骤之后依次执行外壳安装步骤、管接头安装步骤和焊接步骤；外壳安装步骤包括：将上盖套合在外筒部上端的止口部上，将下盖套合在外筒部下端的止口部上；管接头安装步骤包括：将管接头插入下盖的进气部，并与缸体的进气侧对接；焊接步骤，将上盖与基座焊接，并将下盖与基座焊接。
根据本发明的一些实施例，上盖和下盖通过冲压工艺制造。
根据本发明的一些实施例，管接头安装步骤当中，将第一凸缘与进气部卡合，并将第二凸缘与缸体卡合。
根据本发明的一些实施例，在焊接步骤当中，上盖、基座以及下盖连接成的三段体采用激光焊接。
根据本发明的一些实施例，在准备步骤当中，通过冲压工艺制造基座。
根据本发明的一些实施例，在准备步骤当中，对冲压得到的基座的胚件进行粗加工处理，粗加工处理依次包括：对胚件上端面进行平整后，在外筒部上端和 下端分别车出止口部；采用铰孔工艺，对外筒部内壁上的定子安装位进行精铰；对内筒部上端面进行平整，并对安装曲轴的轴孔的端面进行倒角。
根据本发明的一些实施例，在准备步骤当中，对粗加工处理后的胚件进行精加工处理，精加工处理依次包括：以经过精铰后的定子安装位为定位装夹基准，进行内涨自定心；对内筒部的轴孔进行精镗，对底壁的下端面进行精磨；采用浮动铰珩工艺对内筒部的轴孔进行珩磨。
根据本发明的一些实施例，底壁上开设的安装孔与半圆孔，通过冲压工艺得到。
应用本发明的压缩机，在压缩机生产过程当中，可以先将缸体、活塞、曲轴以及下轴承等部件预装在基座上，然后将定子安装在外筒部内壁上，并将转子安装在曲轴上，然后对定子和转子进行调心，由于基座为一体成型件，在制造过程当中内筒部和外筒部公差能够较好的控制，定子安装在外筒部内壁上后受力均匀，变形小，定子与转子的同轴度高、间隙均匀，有效降低了定子和转子间隙不均带来的电磁噪音，同时定子、转子以及缸体等部件均设置在基座上，相对于现有技术而言，定子和转子均由基座提供支承，有效提高了压缩机的结构稳定性。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为本发明实施例中压缩机的正视图；
图2为本发明实施例中压缩机的剖视图；
图3为图2中基座的剖图；
图4为图3中基座的轴侧图；
图5为图3中基座另一视角的轴侧图；
图6为图2中下盖的剖视图；
图7为图3中下盖的轴测图；
图8为图2中管接头的剖视图；
上述附图包含以下附图标记。
标号 名称 标号 名称
100 基座 113 底壁
101 接线端子 114 腰型孔
102 排气管 115 排气槽
103 定子 200 上盖
104 转子 300 下盖
105 曲轴 310 进气部
106 缸体 311 扩口部
107 活塞 312 凸起部
108 下轴承 400 管接头
111 外筒部 401 第一凸缘
112 内筒部 402 第二凸缘
具体实施方式
下面详细描述本发明的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，若干的含义是一个或者多个，多个的含义是两个及两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本发明的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
参照图1至图8，本实施例第一方面的压缩机，包括：基座100，包括同轴设置外筒部111和内筒部112，还包括底壁113，外筒部111和内筒部112通过底壁113连接，外筒部111的轴向沿上下方向，外筒部111、内筒部112和底壁113一体成型，也即基座100为一体成型件，外筒部111和内筒部112之间形成装配空间；曲轴105，沿内筒部112的轴向穿过内筒部112设置；定子103，设置在外筒部111的内壁上；转子104，与曲轴105同轴连接，定子103和转子104均位于装配空间当中，定子103套设在转子104外周；缸体106，设置在底壁113下方；活塞107，设置在缸体106当中，活塞107与曲轴105连接；下轴承108，设置在缸体106下方，下轴承108与曲轴105连接。
应用本实施例的压缩机，在压缩机生产过程当中，可以先将缸体106、活塞107、曲轴105以及下轴承108等部件预装在基座100上，然后将定子103安装在外筒部111内壁上，并将转子104安装在曲轴105上，然后对定子103和转子104进行调心，由于基座100为一体成型件，在制造过程当中内筒部112和外筒部111公差能够较好的控制，定子103安装在外筒部111内壁上后受力均匀，变形小，定子103与转子104的同轴度高、间隙均匀，有效降低了定子103和转子104间隙不均带来的电磁噪音，同时定子103、转子104以及缸体106等部件均设置在基座100上，相对于现有技术而言，定子103和转子104均由基座100 提供支承，有效提高了压缩机的结构稳定性。
其中，基座100可以通过多种方式一体成型，例如通过冲压、冷挤等加工工艺加工成为基座100，也可以通过铣削、车削等切削加工的方式，将胚料加工成为基座100。
具体地，如图3所示，基座100的截面形状类似字母E，其包括同轴设置的内筒部112和外筒部111，外筒部111的内壁具有定子103安装位，用于安装定子103，内筒上下贯穿有轴孔，轴孔用于安装曲轴105；其中外筒部111也具有壳体的作用，而内筒部112起到了压缩机上轴承的作用，也即可以将基座100视为上轴承与一部分壳体一体化设置之后的一个部件。
在基座100上，定子103、转子104、曲轴105、缸体106、活塞107和下轴承108等部件的安装方式，均可以参考现有的转子104压缩机的结构，多个螺栓穿过基座100、缸体106和下轴承108并将这几部分固定，此时上下轴承108共同起到对于曲轴105的支承作用。
如图4所示，底壁113上开设有腰型孔114，腰型孔114沿上下方向贯穿底壁113；其中腰型孔114具有通气功能和柔性缓冲作用，减少泵体受壳体热变形外力冲击等影响，提高压缩机运行可靠性；当采用冲压工艺制造基座100时，底壁113上设置的腰型孔114和螺栓的固定孔等槽孔，均可以通过在冲压工艺当中冲出，提高生产效率。
如图2所示，压缩机还包括上盖200，上盖200与外筒部111上端扣合；其中，外筒部111和上盖200一同作为整个压缩机外壳的一部分；在外壳上还设置有排气管102和接线端子101，其中排气管102用于将压缩机压缩过后的冷媒排出，而接线端子101用于为电机供电以及控制电机运转。
如图3所示，外筒部111上端的外侧设置有止口部，上盖200与止口部套合；在将上盖200套在外筒部111上时，外筒部111上端外侧的止口部能够对上盖200套起到限位作用，使得上盖200与基座100安装位置准确，在将两者焊接之前，还可以微调上盖200在止口部上套合的位置。
如图2、图6所示，压缩机还包括下盖300，下盖300与外筒部111下端扣合；下盖300侧壁开设有进气部310；其中，上盖200、基座100外筒部111以及下盖300三者分别作为压缩机壳体的三段，进气部310用于对接缸体106的进气侧与进气铜管。
如图3所示，外筒部111下端的外侧设置有止口部，下盖300与止口部间隙配合；在将上盖200套在外筒部111上时，外筒部111下端外侧的止口部能够对下盖300套起到限位作用，使得下盖300与基座100安装位置准确，在将两者完全焊接之前，还可以微调下盖300在止口部上套合的位置；具体地，由于下盖300与止口部间隙配合，在压缩机装配过程当中，可以先将下盖300安装在基座100上，然后安装管接头400，当管接头400安装到位，与缸体106的进气侧对正后再将下盖300与基座100焊接；由于管接头400与进气部310是过盈配合，上述安装方式可以保证管接头400与缸体106的进气侧对正，防止漏气。
具体地，如图6、图7所示，下盖300底部还设置有凸起部312，可用于定位以及安装压缩机减震装置，而下盖300顶部设置有扩口部311，扩口部311与外筒部111下端外侧的止口部间隙套合。
在本实施例当中，上盖200、下盖300以及基座100均可以采用冲压工艺制作，而下盖300上开设的进气部310可以通过侧拉伸工艺制作，在保证零件精度的同时，有效提高生产效率。
如图2所示，压缩机还包括管接头400，管接头400穿过进气部310并与缸体106的进气侧连通；其中，管接头400用于连接冷媒系统当中的铜管与缸体106的进气侧。
具体地，如图8所示，管接头400侧壁设置有第一凸缘401和第二凸缘402，第一凸缘401与进气部310卡合，第二凸缘402与缸体106卡合；其中第一凸缘401的截面为圆形，用于卡合进气部310，防止最后焊接时异物进入压缩机；而第二凸缘402的截面为阶梯齿形，且具有倒钩结构，其安装完成后可确保装配面密封，避免压缩机吸孔处高低压串气；而管接头400的详细结构，可以参照CN108644502A等现有技术。
本实施例第二方面的压缩机制造方法，用于制造上述压缩机，包括以下步骤：准备步骤，制造基座100；预装步骤，将缸体106、活塞107、曲轴105，下轴承108预装在基座100上；定子103安装步骤，将定子103安装在外筒部111内壁上；转子104安装步骤，将转子104安装在曲轴105上并进行调心，而后紧固下轴承108。
由于基座100为一体部件，且基座100同时为定子103和转子104提供支承，在预装步骤时，先不紧固下轴承108，而当定子103和转子104完成调心后紧固下轴承108之后，定子103和转子104之间的间隙均匀，运转稳定，有效减少了定子103和转子104间隙不均导致的电磁噪音。
具体地，如图2所示，在转子104安装步骤之后依次执行外壳安装步骤、管接头400安装步骤和焊接步骤；外壳安装步骤包括：将上盖200套合在外筒部111上端的止口部上，将下盖300套合在外筒部111下端的止口部上；管接头400安装步骤包括：将管接头400插入下盖300的进气部310，并与缸体106的进气侧对接；焊接步骤，将上盖200与基座100焊接，并将下盖300与基座100焊接；由于扩口部311与止口部间隙配合，在压缩机装配过程当中，可以先将扩 口部311在基座100上，然后安装管接头400，当管接头400安装到位并与缸体106的进气侧对正后再将下盖300与基座100焊接；由于管接头400与进气部310是过盈配合，上述安装方式可以保证管接头400与缸体106的进气侧对正，防止漏气。
具体地，在管接头400安装步骤当中，将第一凸缘401与进气部310卡合，并将第二凸缘402与缸体106卡合；其中第一凸缘401的截面为圆形，用于卡合进气部310，防止最后焊接时异物进入压缩机；而第二凸缘402的截面为阶梯齿形，且具有倒钩结构，其安装完成后可确保装配面密封，避免压缩机吸孔处高低压串气。
如图2所示，在最后的焊接步骤当中，上盖200、基座100以及下盖300连接成的三段体采用激光焊接；此时，上盖200、外筒部111以及下盖300共同构成了整个压缩机的外壳部分，整个压缩机的结构稳定，承力结构合理，定子103和转子104之间的间隙均匀，运转噪音低。
如图3所示，在准备步骤当当中，可以通过冲压工艺制造基座100，提高生产效率，具体地，在冲压时可以选用牌号为SPCC-2D，厚度3.2mm的板料，下料重量为264g；冲压品的重量为117g；在满足了基座100的强度要求的同时，重量更轻；同时相对于现有技术当中采用HT250材料铸造成的上轴承部件来说，在满足承力需求的同时有效降低了重量。
具体地，在准备步骤当中，还需要对冲压得到的胚件进行粗加工处理，其中粗加工处理包括依次进行的如下步骤：对胚件上端面进行平整后，在外筒部111上端和下端分别车出止口部；采用铰孔工艺，对外筒部111内壁上的定子103安装位进行精铰，确保定子103安装位的圆柱度小于0.02；对内筒部112上端面进行平整，并对安装曲轴105的轴孔的端面进行倒角；在整个粗加工步骤当中，以冲压胚件的内筒部112中的中心轴孔为机械粗加工的定位基准。
在准备步骤当中，对粗加工过后的胚件还需要进行精加工处理，精加工处理依次包括如下步骤：以经过精铰后的定子103安装位为定位装夹基准，进行内涨自定心；对内筒部112的轴孔进行精镗，对底壁113的下端面进行精磨；采用浮动铰珩工艺对内筒部112的轴孔进行珩磨；通过同一装夹完成端面及内孔的加工，确保轴孔与端面的垂直度小于0.002,内筒部112的轴孔和定子103安装位的同轴度<0.03。
在通过冲压工艺制造基座100的过程当中，底壁113上开设的安装孔、半圆孔以及排气槽115等结构，均可在冲压工艺当中加工出来。
上面结合附图对本发明实施例作了详细说明，但是本发明不限于上述实施例，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。

Claims (17)

  1. 一种压缩机，其特征在于，包括：
    基座(100)，包括同轴设置的外筒部(111)和内筒部(112)，还包括底壁(113)，所述外筒部(111)和所述内筒部(112)通过所述底壁(113)连接，所述外筒部(111)的轴向沿上下方向，所述外筒部(111)、所述内筒部(112)和所述底壁(113)一体成型，所述外筒部(111)和所述内筒部(112)之间形成装配空间；
    曲轴(105)，沿所述内筒部(112)的轴向穿过所述内筒部(112)设置；
    定子(103)，设置在所述外筒部(111)的内壁上；
    转子(104)，与所述曲轴(105)同轴连接，所述定子(103)套设在所述转子(104)外周，所述定子(103)和所述转子(104)均位于所述装配空间当中；
    缸体(106)，设置在所述底壁(113)下方；
    活塞(107)，设置在所述缸体(106)当中，所述活塞(107)与所述曲轴(105)连接；
    下轴承(108)，设置在所述缸体(106)下方，所述下轴承(108)与所述曲轴(105)连接。
  2. 根据权利要求1所述的压缩机，其特征在于，所述底壁(113)上开设有腰型孔(114)，所述腰型孔(114)沿上下方向贯穿所述底壁(113)。
  3. 根据权利要求1所述的压缩机，其特征在于，还包括上盖(200)，所述上盖(200)与所述外筒部(111)上端扣合。
  4. 根据权利要求3所述的压缩机，其特征在于，所述外筒部(111)上端的外侧设置有止口部，所述上盖(200)与所述止口部套合。
  5. 根据权利要求1所述的压缩机，其特征在于，还包括下盖(300)，所述下盖(300)与所述外筒部(111)下端扣合；所述下盖(300)的侧壁开设有进气部(310)。
  6. 根据权利要求5所述的压缩机，其特征在于，所述外筒部(111)下端的外侧设置有止口部，所述下盖(300)与所述止口部间隙配合。
  7. 根据权利要求5所述的压缩机，其特征在于，还包括管接头(400)，所述管接头(400)穿过所述进气部(310)并与所述缸体(106)的进气侧连通。
  8. 根据权利要求7所述的压缩机，其特征在于，所述管接头(400)侧壁设置有第一凸缘(401)和第二凸缘(402)，所述第一凸缘(401)与所述进气部(310)卡合，所述第二凸缘(402)与所述缸体(106)卡合。
  9. 一种压缩机制造方法，用于制造权利要求1所述的压缩机，其特征在于，包括如下步骤：
    准备步骤，制造基座(100)；
    预装步骤，将缸体(106)、活塞(107)、曲轴(105)，下轴承(108)预装在基座(100)上；
    定子(103)安装步骤，将定子(103)安装在外筒部(111)内壁上；
    转子(104)安装步骤，将转子(104)安装在曲轴(105)上并进行调心，而后紧固下轴承(108)。
  10. 根据权利要求9所述的压缩机制造方法，其特征在于，在转子(104)安装步骤之后依次执行外壳安装步骤、管接头(400)安装步骤和焊接步骤；
    外壳安装步骤包括：将上盖(200)套合在外筒部(111)上端的止口部上，将下盖(300)套合在外筒部(111)下端的止口部上；
    管接头(400)安装步骤包括：将管接头(400)插入下盖(300)的进气部(310)，并与缸体(106)的进气侧对接；
    焊接步骤，将上盖(200)与基座(100)焊接，并将下盖(300)与基座(100)焊接。
  11. 根据权利要求10所述的压缩机的制造方法，其特征在于，上盖(200)和下盖(300)通过冲压工艺制造。
  12. 根据权利要求10所述的压缩机制造方法，其特征在于，管接头(400)安装 步骤当中，将第一凸缘(401)与进气部(310)卡合，并将第二凸缘(402)与缸体(106)卡合。
  13. 根据权利要求10所述的压缩机的制造方法，其特征在于，在焊接步骤当中，上盖(200)、基座(100)以及下盖(300)连接成的三段体采用激光焊接。
  14. 根据权利要求9所述的压缩机制造方法，其特征在于，在准备步骤当中，通过冲压工艺制造基座(100)。
  15. 根据权利要求14所述的压缩机制造方法，其特征在于，在准备步骤当中，对冲压得到的基座(100)的胚件进行粗加工处理，粗加工处理依次包括：
    对胚件上端面进行平整后，在外筒部(111)上端和下端分别车出止口部；
    采用铰孔工艺，对外筒部(111)内壁上的定子(103)安装位进行精铰；
    对内筒部(112)上端面进行平整，并对安装曲轴(105)的轴孔的端面进行倒角。
  16. 根据权利要求15所述的压缩机的制造方法，其特征在于，在准备步骤当中，对粗加工处理后的胚件进行精加工处理，精加工处理依次包括：
    以经过精铰后的定子(103)安装位为定位装夹基准，进行内涨自定心；
    对内筒部(112)的轴孔进行精镗，对底壁(113)的下端面进行精磨；
    采用浮动铰珩工艺对内筒部(112)的轴孔进行珩磨。
  17. 根据权利要求14所述的压缩机的制造方法，其特征在于，底壁(113)上开设的安装孔与半圆孔，通过冲压工艺得到。
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