CN208281137U - A kind of middle pressure, oilless air compressor - Google Patents

A kind of middle pressure, oilless air compressor Download PDF

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Publication number
CN208281137U
CN208281137U CN201820621131.5U CN201820621131U CN208281137U CN 208281137 U CN208281137 U CN 208281137U CN 201820621131 U CN201820621131 U CN 201820621131U CN 208281137 U CN208281137 U CN 208281137U
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China
Prior art keywords
pressure
oil
piston
crankcase
air compressor
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Expired - Fee Related
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CN201820621131.5U
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Chinese (zh)
Inventor
吕晨悦
施萍
施一萍
张金立
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Abstract

本实用新型涉及一种中压力、全无油空气压缩机,该压缩机包括曲轴箱、一对并列设置在曲轴箱上的低压气缸以及设置在曲轴箱上的组合式无油高压气缸机构,该组合式无油高压气缸机构包括设置在曲轴箱上的高压导向缸组件、设置在高压导向缸组件上的高压气缸组件以及设置在曲轴箱与高压导向缸组件之间的高压连杆。与现有技术相比,本实用新型相对于普通的中压力空气压缩机而言,不仅具有排气温度低、性能稳定、无需频繁加入机油、使用及维护修理成本低廉等优点,而且所产生的是100%不含油、纯净的压缩空气,毋需后续处理即可直接应用于食品、医疗等具有高端压缩空气需求的行业,是目前有油中压力空气压缩机领域理想的升级替代产品。

The utility model relates to a medium-pressure, oil-free air compressor, which comprises a crankcase, a pair of low-pressure cylinders arranged side by side on the crankcase, and a combined oil-free high-pressure cylinder mechanism arranged on the crankcase. The combined oil-free high-pressure cylinder mechanism includes a high-pressure guide cylinder assembly arranged on the crankcase, a high-pressure cylinder assembly arranged on the high-pressure guide cylinder assembly, and a high-pressure connecting rod arranged between the crankcase and the high-pressure guide cylinder assembly. Compared with the prior art, the utility model not only has the advantages of low exhaust temperature, stable performance, no need to add oil frequently, low cost of use, maintenance and repair, etc. compared with ordinary medium-pressure air compressors, but also produces It is 100% oil-free and pure compressed air, which can be directly used in food, medical and other industries with high-end compressed air requirements without subsequent treatment. It is an ideal upgrade replacement product in the field of oil-medium pressure air compressors.

Description

A kind of middle pressure, oilless air compressor
Technical field
The utility model belongs to air compressor technical field, is related to a kind of middle pressure, oilless air compressor.
Background technique
Currently, in the market generally existing middle pressure air compressor be by commonly have oil lubrication air compressor retrofit and At, not only oil consumption, delivery temperature are high, and performance is generally unstable, and frequently addition lubricating oil cause using, maintenance and repair at This is also relatively high, and it is empty with high end compression to be mainly used in food, medical treatment etc. at present for pressure air compressor especially because in The industry of gas demand is mainly used for production and production packet (tank) dress of such product packaging utensil, thus to the pure of compressed air Cleanliness requires high, and compressed air caused by existing air compressor product is because of oil content, temperature drift, if without Subsequent processing can not be used directly at all, and even across subsequent processing, it is also difficult to using standard requirements as defined in reaching, and Investment, the use cost of subsequent processing device are also very high, even if increasing cost, ideal use can not be fully achieved and want It asks.Although existing some oilless air compressor products can produce more pure compressed air, but generally existing Relatively low (the only 8-10kgf/cm of pressure2) the problem of, user is unable to satisfy to using pressure (30-40kgf/cm2) standard want Ask, thus urgently develop a kind of oil-free, middle pressure air compressor come the confession in pressure air compressor market in solving, Need contradiction problem.
Utility model content
The purpose of this utility model is exactly to provide a kind of middle pressure, complete to overcome the problems of the above-mentioned prior art Oil-free air compressor.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of middle pressure, oilless air compressor, the compressor include that crankcase, a pair are disposed in parallel on crankcase Low-pressure cylinder and the oil-free high-pressure cylinder mechanism of combined type that is arranged on crankcase, the oil-free high-pressure cylinder mechanism of the combined type Including the high pressure guiding cylinder component being arranged on crankcase, the high-pressure cylinder component being arranged on high pressure guiding cylinder component and set Set the high-pressure connecting rod between crankcase and high pressure guiding cylinder component.Middle pressure is the tolerance of low-pressure cylinder generation using combination The oil-free high-pressure cylinder mechanism of formula compresses generation again.
Further, high pressure guiding cylinder component includes the high pressure guide cylinder being arranged on crankcase, along axial shifting The dynamic high pressure guide piston being arranged in high pressure guide cylinder and the guide piston ring being arranged on high pressure guide piston.Guiding is lived Plug ring is convenient for the lubrication between high pressure guide piston and high pressure guide cylinder.
Further, the guide piston ring is polytetrafluoroethylene (PTFE) guide piston ring.The guiding of polytetrafluoroethylene (PTFE) material Self-lubricating may be implemented in piston ring, does not need that machine oil is added.
Further, gudgeon pin shaft is equipped in the high pressure guide piston, the top of the high-pressure connecting rod is set in On gudgeon pin shaft.High pressure guide piston is moved back and forth by the cooperation of gudgeon pin shaft and high-pressure connecting rod.
Further, needle bearing is equipped between the gudgeon pin shaft and high-pressure connecting rod, the both ends of the needle bearing are equal Equipped with oil sealing.It is grease-added inside needle bearing, it does not need that machine oil is added.Oil sealing can be avoided lubricating grease and be lost damage needle roller axis It holds.
Further, the high-pressure cylinder component includes the high-pressure cylinder being arranged on high pressure guide cylinder and along axial direction The mobile high pressure piston being arranged in high-pressure cylinder, the bottom end of the high pressure piston is connected with the top of high pressure guide piston.
Further, the diameter of the high pressure piston is less than the diameter of high pressure guide piston.Because of high pressure guide piston It is relatively large in diameter, efficiently solves the problems, such as not can guarantee the enough amplitudes of fluctuation of high-pressure connecting rod because high pressure piston diameter is small.
Further, the high pressure piston is equipped with high pressure piston compression ring and high pressure piston guide ring.High pressure piston gas Ring and high pressure piston guide ring are all made of polytetrafluoroethylene (PTFE) material.High pressure piston has the characteristic of self-lubricating, has copper, graphite to play Lubricating action, without adding oil lubricating;High pressure piston compression ring is mainly used for the work of the sealing between high pressure piston and high pressure gas casing wall With guarantee compression effectiveness;High pressure piston guide ring is mainly used for fixed high pressure piston position and between high pressure gas casing wall Lubricating action guarantees that high pressure piston along high-pressure cylinder axial-movement, avoids the abrasion between high pressure piston and high pressure gas casing wall.
Further, the bottom of the high pressure piston is circumferentially uniformly provided with multiple guide cylinder ventholes, described The fenestra being connected with guide cylinder venthole is offered on crankcase.Guide cylinder venthole and high pressure piston inner hole and high pressure are oriented to Piston tip circular hole is connected, for discharging because caused by differential between two-piston and high pressure piston compresses leaked pressure Contracting air, the gas released are discharged through the fenestra of crankcase two sides.
Air Filter is equipped at the fenestra as a preferred technical solution,.Air Filter fenestra had both been avoided that dust entered Its service performance service life is influenced in compressor, while can be dismantled again rear easy to repair.
Further, which further includes belt pulley, cooling fan over pulleys carried is arranged and is arranged in belt Interstage cooler between wheel and crankcase.Cooling fan can guarantee interstage cooler and the oil-free high-pressure cylinder machine of combined type simultaneously The heat dissipation effect of structure greatly reduces inlet and outlet temperature when the work of combined type oil-free high-pressure cylinder mechanism and whole device Air outlet temperature.
The interstage cooler is plate-fin interstage cooler as a preferred technical solution,.
The utility model is in practical application, the compressed air generated by low-pressure cylinder, after interstage cooler is cooling again The combined oil-free high-pressure cylinder mechanism second-compressed of formula is to 30-40kgf/cm2After be discharged into it is direct for user in dedicated air container It uses.
Compared with prior art, the utility model has the following characteristics that
1) the utility model is for common middle pressure air compressor, not only has that delivery temperature is low, performance Stablize, without frequently be added machine oil, use and maintenance and repair are low in cost the advantages that, and it is generated be 100% not oil-containing, Pure compressed air, not needing subsequent processing i.e. may be directly applied to the row that food, medical treatment etc. have high end compression air requirements Industry is that have pressure air compressor field in oil preferably to upgrade substitute products at present;
2) self-lubricating may be implemented in the guide piston ring of polytetrafluoroethylene (PTFE) material, and oiling rouge inside needle bearing does not need to add Machine oil.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model;
Fig. 2 is the left view structural representation of the utility model;
Description of symbols in figure:
1-crankcase, 2-fenestras, 3-low-pressure cylinders, 4-high pressure guide cylinders, 5-high pressure guide pistons, 6-piston pins Axis, 7-guide piston rings, 8-high-pressure cylinders, 9-high pressure piston compression rings, 10-high pressure piston guide rings, 11-high pressure pistons, 12-guide cylinder ventholes, 13-needle bearings, 14-oil sealings, 15-belt pulleys, 16-high-pressure connecting rods, 17-cooling fans, 18-interstage coolers.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model Shield range is not limited to the following embodiments.
Embodiment:
A kind of middle pressure as shown in Figure 1 and Figure 2, oilless air compressor include that crankcase 1, a pair are disposed in parallel in Low-pressure cylinder 3 on crankcase 1 and the oil-free high-pressure cylinder mechanism of combined type being arranged on crankcase 1, the combined type are oil-free High-pressure cylinder mechanism includes the high pressure guiding cylinder component being arranged on crankcase 1, the high pressure being arranged on high pressure guiding cylinder component Cylinder assembly and the high-pressure connecting rod 16 being arranged between crankcase 1 and high pressure guiding cylinder component.
Wherein, high pressure guiding cylinder component include the high pressure guide cylinder 4 being arranged on crankcase 1, be axially moveable setting exist High pressure guide piston 5 in high pressure guide cylinder 4 and the guide piston ring 7 being arranged on high pressure guide piston 5.Guide piston ring 7 be polytetrafluoroethylene (PTFE) guide piston ring.
Gudgeon pin shaft 6 is equipped in high pressure guide piston 5, the top of high-pressure connecting rod 16 is set on gudgeon pin shaft 6.Piston pin Needle bearing 13 is equipped between axis 6 and high-pressure connecting rod 16, the both ends of the needle bearing 13 are equipped with oil sealing 14.
High-pressure cylinder component includes the high-pressure cylinder 8 being arranged on high pressure guide cylinder 4 and is axially moveable setting in height The bottom end of high pressure piston 11 in air cylinder 8, the high pressure piston 11 is connected with the top of high pressure guide piston 5.High pressure piston 11 Diameter be less than high pressure guide piston 5 diameter.High pressure piston 11 is equipped with high pressure piston compression ring 9 and high pressure piston guide ring 10.The bottom of high pressure piston 11 is circumferentially uniformly provided with multiple guide cylinder ventholes 12, offers on crankcase 1 and guide cylinder The fenestra 2 that venthole 12 is connected.
The compressor further includes belt pulley 15, the cooling fan being arranged on belt pulley 15 17 and is arranged in belt pulley 15 Interstage cooler 18 between crankcase 1.
In practical application, the compressed air generated by low-pressure cylinder 3, the combined formula again after interstage cooler 18 is cooling Oil-free high-pressure cylinder mechanism second-compressed is to 30-40kgf/cm2After be discharged into dedicated air container and directly used for user.
It can understand the above description of the embodiments is intended to facilitate those skilled in the art and use practical It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein General Principle be applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and Modification should be all within the protection scope of the utility model.

Claims (10)

1.一种中压力、全无油空气压缩机,其特征在于,该压缩机包括曲轴箱(1)、一对并列设置在曲轴箱(1)上的低压气缸(3)以及设置在曲轴箱(1)上的组合式无油高压气缸机构,该组合式无油高压气缸机构包括设置在曲轴箱(1)上的高压导向缸组件、设置在高压导向缸组件上的高压气缸组件以及设置在曲轴箱(1)与高压导向缸组件之间的高压连杆(16)。1. A medium pressure, oil-free air compressor is characterized in that the compressor comprises a crankcase (1), a pair of low-pressure cylinders (3) that are arranged side by side on the crankcase (1) and are arranged on the crankcase The combined oil-free high-pressure cylinder mechanism on (1), the combined oil-free high-pressure cylinder mechanism includes a high-pressure guide cylinder assembly arranged on the crankcase (1), a high-pressure cylinder assembly arranged on the high-pressure guide cylinder assembly, and a high-pressure cylinder assembly arranged on the crankcase (1). High-pressure connecting rod (16) between crankcase (1) and high-pressure pilot cylinder assembly. 2.根据权利要求1所述的一种中压力、全无油空气压缩机,其特征在于,所述的高压导向缸组件包括设置在曲轴箱(1)上的高压导向缸(4)、沿轴向移动设置在高压导向缸(4)内的高压导向活塞(5)以及设置在高压导向活塞(5)上的导向活塞环(7)。2. A medium-pressure, oil-free air compressor according to claim 1, characterized in that, the high-pressure guide cylinder assembly includes a high-pressure guide cylinder (4) arranged on the crankcase (1), along The high-pressure pilot piston (5) arranged in the high-pressure pilot cylinder (4) and the pilot piston ring (7) arranged on the high-pressure pilot piston (5) are moved axially. 3.根据权利要求2所述的一种中压力、全无油空气压缩机,其特征在于,所述的导向活塞环(7)为聚四氟乙烯导向活塞环。3. A medium-pressure, oil-free air compressor according to claim 2, characterized in that, said guide piston ring (7) is a polytetrafluoroethylene guide piston ring. 4.根据权利要求2所述的一种中压力、全无油空气压缩机,其特征在于,所述的高压导向活塞(5)内设有活塞销轴(6),所述的高压连杆(16)的顶端套设在活塞销轴(6)上。4. A medium-pressure, oil-free air compressor according to claim 2, characterized in that a piston pin (6) is provided inside the high-pressure guide piston (5), and the high-pressure connecting rod The top end of (16) is sleeved on the piston pin shaft (6). 5.根据权利要求4所述的一种中压力、全无油空气压缩机,其特征在于,所述的活塞销轴(6)与高压连杆(16)之间设有滚针轴承(13),该滚针轴承(13)的两端均设有油封(14)。5. A medium-pressure, oil-free air compressor according to claim 4, characterized in that a needle bearing (13) is arranged between the piston pin (6) and the high-pressure connecting rod (16) ), the two ends of the needle bearing (13) are provided with oil seals (14). 6.根据权利要求2所述的一种中压力、全无油空气压缩机,其特征在于,所述的高压气缸组件包括设置在高压导向缸(4)上的高压气缸(8)以及沿轴向移动设置在高压气缸(8)内的高压活塞(11),该高压活塞(11)的底端与高压导向活塞(5)的顶端相连。6. A medium-pressure, oil-free air compressor according to claim 2, characterized in that, said high-pressure cylinder assembly includes a high-pressure cylinder (8) arranged on a high-pressure guide cylinder (4) and a To move the high-pressure piston (11) arranged in the high-pressure cylinder (8), the bottom end of the high-pressure piston (11) links to each other with the top end of the high-pressure pilot piston (5). 7.根据权利要求6所述的一种中压力、全无油空气压缩机,其特征在于,所述的高压活塞(11)的直径小于高压导向活塞(5)的直径。7. A medium-pressure, oil-free air compressor according to claim 6, characterized in that the diameter of the high-pressure piston (11) is smaller than the diameter of the high-pressure pilot piston (5). 8.根据权利要求6所述的一种中压力、全无油空气压缩机,其特征在于,所述的高压活塞(11)上设有高压活塞气环(9)及高压活塞导向环(10)。8. A medium-pressure, oil-free air compressor according to claim 6, characterized in that, the high-pressure piston (11) is provided with a high-pressure piston gas ring (9) and a high-pressure piston guide ring (10 ). 9.根据权利要求6所述的一种中压力、全无油空气压缩机,其特征在于,所述的高压活塞(11)的底部沿周向均匀开设有多个导向缸通气孔(12),所述的曲轴箱(1)上开设有与导向缸通气孔(12)相连通的窗孔(2)。9. A medium-pressure, oil-free air compressor according to claim 6, characterized in that the bottom of the high-pressure piston (11) is evenly opened with a plurality of guide cylinder ventilation holes (12) along the circumference , the crankcase (1) is provided with a window hole (2) communicating with the guide cylinder vent hole (12). 10.根据权利要求1所述的一种中压力、全无油空气压缩机,其特征在于,该压缩机还包括皮带轮(15)、设置在皮带轮(15)上的冷却风扇(17)以及设置在皮带轮(15)与曲轴箱(1)之间的级间冷却器(18)。10. A kind of medium pressure, oil-free air compressor according to claim 1, is characterized in that, this compressor also comprises belt pulley (15), is arranged on the cooling fan (17) on belt pulley (15) and sets Interstage cooler (18) between pulley (15) and crankcase (1).
CN201820621131.5U 2018-04-27 2018-04-27 A kind of middle pressure, oilless air compressor Expired - Fee Related CN208281137U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110259668A (en) * 2019-07-19 2019-09-20 浙江瑞昭科技股份有限公司 A kind of piston type air compressor
CN113309687A (en) * 2021-05-24 2021-08-27 瑞立集团瑞安汽车零部件有限公司 Internal cooling water channel structure of air compressor and air compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110259668A (en) * 2019-07-19 2019-09-20 浙江瑞昭科技股份有限公司 A kind of piston type air compressor
CN113309687A (en) * 2021-05-24 2021-08-27 瑞立集团瑞安汽车零部件有限公司 Internal cooling water channel structure of air compressor and air compressor
CN113309687B (en) * 2021-05-24 2023-01-24 瑞立集团瑞安汽车零部件有限公司 Inside cooling water course structure of air compressor machine and air compressor machine

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