CN1069552A - Gear pump with variable capacity - Google Patents
Gear pump with variable capacity Download PDFInfo
- Publication number
- CN1069552A CN1069552A CN 92103474 CN92103474A CN1069552A CN 1069552 A CN1069552 A CN 1069552A CN 92103474 CN92103474 CN 92103474 CN 92103474 A CN92103474 A CN 92103474A CN 1069552 A CN1069552 A CN 1069552A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- pump
- gear pump
- driving mechanism
- variable capacity
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000007704 transition Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
Gear pump with variable capacity is one of important foundation part of hydraulic industry, it is characterized in that: except that the typical structure that general quantitative gear pump is arranged, the axle sleeve and the driving mechanism thereof that also have a rotation, when axle sleeve rotates under the driving mechanism effect, splitter box on the axle sleeve makes the delivery side of pump flow that stepless variation take place, thereby realizes variable.The technical problem underlying of gear pump with variable capacity is: the splitter box design parameter is selected on the rotary axle box; How there are self-locking or positioning performance in design driven mechanism when axle sleeve is rotated; The configuration of transition zone sealing block and design parameter are selected; The design parameter of the one-sided floating structure of axle sleeve is selected.
Gear pump with variable capacity can be widely used in needing to change flow in the various hydraulic transmissions to satisfy the occasion of job requirement.
Description
Gear pump with variable capacity is one of important basic part of hydraulic industry, and be considered to can not variable or be difficult to realize variable by changing self structure that the present invention can realize variable by changing the gear pump self structure always for gear pump for a long time.
The structure of gear pump with variable capacity, mainly by left and right pump cover 7,16 pump housings 9, gear 10,15, floating buss 11,17, seal ring 8,12, DU bearing 2, compositions such as rolling bearing 6, rotary axle box 5 and driving mechanism thereof (in this model machine with manual worm gear 4, worm screw 3, as driving mechanism) are seen accompanying drawing 1, gear pump with variable capacity structural representation.
Variable principle is: axle sleeve 5 end faces in the energy rotation are driven a splitter box with certain size and shape, outside on the projecting shaft of rotary axle box 5, applying, turn round short (fluid power, electric power, machinery or manual), when axle sleeve is rotated, splitter box on the axle sleeve changes transition seal area seal angle size thereupon, a part of high pressure oil of oil outlet passes through splitter box, shunt the resorption oil pocket according to certain rules, thereby make pump under certain pressure, certain rotating speed, the stepless change rate of discharge, realize variable, see schematic diagram 2.
The present invention adopts the combined material pump housing to replace all aluminium alloy pump housing or full cast iron (or cast copper) pump housing, promptly inlay a wear-resistant aluminum alloy sealing block that certain size and shape are arranged in the transition zone of cast iron (or cast steel) pump housing, adopt friend and sweep the borer skill, can reach the performance identical with all aluminium alloy pump housing, but a large amount of valuable non-ferrous metals have been saved, has important economic value, the combined material pump housing is applicable to low, in, all kinds of pumps of high pressure, to high-pressure service pump (p 〉=16MPa), adopt combined material (the cast steel ten wear-resistant aluminum alloys are inserted) pump housing, can solve the difficult problem of all aluminium alloy pump housing strength deficiency, to low, medium pressure pump adopts the combined material pump housing, can improve pump performance.
The present invention adopts the one-sided axle sleeve floating structure in right side, to guarantee certain volumetric efficiency.
The present invention is simple in structure, formulates easily, and those skilled in the art adopt standard equipment to make.
Gear pump and vane pump, plunger pump relatively have its unique advantage, use wider, but because of the past gear pump can not variable, its application area is restricted, and superiority can not be given full play to, and the invention of gear pump with variable capacity and application will enlarge the using scope of gear pump, more give full play to its superiority, can be widely used in engineering machinery, farm machinery needs the occasion of variable in the hydraulic transmission of mining machinery, plastics machinery etc.
Claims (6)
1, a kind of gear pump with variable capacity that can change flow by the change self structure, it is characterized in that: except that the typical structure that general quantitative tooth pump is arranged, the axle sleeve and the driving mechanism thereof that also have a rotation, when driving mechanism rotates axle sleeve, splitter box on the axle sleeve changes the seal area seal angle, and rate of discharge also changes thereupon.
2, right 1 described driving mechanism can be a fluid power, can be (as the stepper motor) of electric power, can be mechanical, also can be manpower.
3, right 1 described rotary axle box, splitter box sectional shape and size on its end face have the ability by the specified rate of discharge of peak rate of flow-pump, and shunt volume and axle sleeve corner are good with linear relationship.
4, the driving mechanism of right 1 described rotary axle box has self-locking property or positioning performance, can guarantee that rotary axle box has accurately in any position, steady state.In this model machine, adopt the manual worm gear worm mechanism, helix angle b≤a(equivalent angle of friction).
5, right 1 described seal area is inserted by wear-resistant aluminum alloy and to be formed, according to the size and dimension of 1-2 tooth sealing principle decision sealing block.
6, the aluminum alloy in the right 5 described seal areas is inserted and the pump housing body formation combined material pump housing, its combined method is: cast iron pump body ten wear-resistant aluminum alloys are inserted, or steel casting pump body ten wear-resistant aluminum alloys insert, but with all aluminium alloy pump housing or full cast iron pump body variation not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103474 CN1069552A (en) | 1992-05-06 | 1992-05-06 | Gear pump with variable capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103474 CN1069552A (en) | 1992-05-06 | 1992-05-06 | Gear pump with variable capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1069552A true CN1069552A (en) | 1993-03-03 |
Family
ID=4940215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92103474 Pending CN1069552A (en) | 1992-05-06 | 1992-05-06 | Gear pump with variable capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1069552A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398825C (en) * | 2001-08-31 | 2008-07-02 | 尤尼西亚Jkc控制系统株式会社 | as |
| CN101975161A (en) * | 2010-11-04 | 2011-02-16 | 奇瑞汽车股份有限公司 | Gear pump |
| CN101443578B (en) * | 2006-03-13 | 2012-10-10 | 利莫－里德公司 | Low noise gear pump |
| CN104235012A (en) * | 2014-08-29 | 2014-12-24 | 西北工业大学 | Multi-joint variable-flow aerial gear oil pump |
| CN106837787A (en) * | 2017-04-07 | 2017-06-13 | 湖北大旗液压有限公司 | A kind of gear pump case being made up of iron aluminium composite material and its manufacture method |
| CN115898860A (en) * | 2022-11-29 | 2023-04-04 | 湖南机油泵股份有限公司 | Variable gear pump |
-
1992
- 1992-05-06 CN CN 92103474 patent/CN1069552A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398825C (en) * | 2001-08-31 | 2008-07-02 | 尤尼西亚Jkc控制系统株式会社 | as |
| CN101443578B (en) * | 2006-03-13 | 2012-10-10 | 利莫－里德公司 | Low noise gear pump |
| CN101975161A (en) * | 2010-11-04 | 2011-02-16 | 奇瑞汽车股份有限公司 | Gear pump |
| CN104235012A (en) * | 2014-08-29 | 2014-12-24 | 西北工业大学 | Multi-joint variable-flow aerial gear oil pump |
| CN106837787A (en) * | 2017-04-07 | 2017-06-13 | 湖北大旗液压有限公司 | A kind of gear pump case being made up of iron aluminium composite material and its manufacture method |
| CN115898860A (en) * | 2022-11-29 | 2023-04-04 | 湖南机油泵股份有限公司 | Variable gear pump |
| CN115898860B (en) * | 2022-11-29 | 2025-06-03 | 湖南美湖智造股份有限公司 | A variable gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |