CN201437759U - Oil-free compressor used for locomotives - Google Patents
Oil-free compressor used for locomotives Download PDFInfo
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- CN201437759U CN201437759U CN2009201865041U CN200920186504U CN201437759U CN 201437759 U CN201437759 U CN 201437759U CN 2009201865041 U CN2009201865041 U CN 2009201865041U CN 200920186504 U CN200920186504 U CN 200920186504U CN 201437759 U CN201437759 U CN 201437759U
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Abstract
The utility model belongs to technical field of air compressor, and relates to an oil-free compressor used for locomotives, in particular to an eccentric block and connecting link reciprocating piston full oil-free lubrication compressor. The compressor comprises a motor, two air cylinders, a piston connecting link component, an air valve component, a cooling fan and other components, wherein the coaxial air cylinders are respectively and symmetrically arranged above and below a motor shaft or are horizontally arranged. The connecting link is sleeved on the motor shaft through a radial ball bearing and an eccentric block, two needle roller bearings with a one-sided sealing structure are mounted in the small head of each connecting link, and a crankshaft link mechanism drives the piston to realize the reciprocating movement in the air cylinder. An air intake valve, a valve plate, an exhaust valve are mounted between the air cylinder and the cylinder lid, the valve plate is a flat plate-type structure on which an air inlet flow channel and an exhaust flow channel are formed. An air inlet cavity and an exhaust cavity are formed on the cylinder lid. The compressor has the advantages of oil economization, environmental protection and simple operation and maintenance.
Description
Technical field
The utility model belongs to the air compressor technical field, relates to a kind of oil-free compressor used in locomotive that electric locomotive rises the bow system that is applied to, specifically a kind of eccentric mass-connecting rod reciprocating piston non-oil lubricating compressor.
Background technique
Oil-free compressor is meant in the compressor motion and the interior all compressors of no liquid lubricant oil of cylinder.This kind compressor can not pollute operating environment and gas equipment and system thereof in the course of the work, can avoid compressor because of the potential explosion risk of the existence of hydrocarbon, has advantages such as fuel-economizing, environmental protection, Operation and Maintenance be simple.Oil-free compressor has developed very soon since 1954 come out, and becomes one of compressor industry research focus in recent years.At present, oil-free compressor is extensive in the sector application that source of the gas is had relatively high expectations, as food, medicine, chemical industry, breed, weaving, electronic computer, national defence etc.
Oil-free compressor used in locomotive is mainly used in high-power AC transmission power cars such as China DJ4 and DJ6 and rises the bow system, this compressor has quite strict requirement on the environment applying working condition, mainly contain the following aspects: operating temperature :-40 ℃～+ 70 ℃, operating altitude: 0～2500m.The universal compressor that China produces can't satisfy above environmental working condition usage requirement, and China's electric locomotive rises the compressor that compressor that the bow system uses adopts the production of German D ü RR company mostly, and the product of the said firm is in monopoly position in China always for many years.Along with the development of China railways great-leap-forward, the demand of electric locomotive increases severely year by year, and electric locomotive rises the bow system and seems particularly important with the production domesticization of compressor.
The model utility content
In order to satisfy the needs of China railways fast development, solve the domestic existing universal compressor of China and can't satisfy the problem of locomotive with the compressor environment applying working condition, the utility model provides a kind of novel locomotive oilless compressor, can bear the usage requirement of rugged environment operating modes such as high temperature, low temperature, high height above sea level.
Technical solutions of the utility model are: oil-free compressor used in locomotive, comprise members such as motor, cylinder, piston rod part, air-valve assembly, cooling fan, wherein said piston rod part is made up of members such as piston, piston ring, wrist pin, connecting rods, and connecting rod small end is connected with described piston by described wrist pin; Be set with two eccentric masss on the motor shaft of described motor, described eccentric mass and described motor shaft are connected with connnecting rod big end by a deep groove ball bearing with sealing configuration; Connecting rod small end links to each other with described wrist pin by two needle bearings with oil seal structure.
In the such scheme, the alternate angle between two described eccentric masss is 180 °, and described deep groove ball bearing preferred version adopts radial ball bearing.
In the such scheme, all fill the withstand temperature scope in described deep groove ball bearing and the needle bearing and be-40～+ 200 ℃ lubricating grease.
In the such scheme, described two needle bearings are the needle roller bearing without inner rings with one-sided sealing configuration, and the two is back-to-back fitting together.
Described air-valve assembly is the integrated combined type structure, comprises valve plate, air-intake valve plate and exhaust valve plate,
Described air-intake valve plate, exhaust valve plate are arranged in the both sides of described valve plate, and described valve plate, air-intake valve plate, exhaust valve plate are equipped with the inlet and outlet runner, directly are fixed on the cylinder together with cylinder cap by screw.
Described valve plate is flat double flow channel structure, is offering the circular hole of two same diameter as air inlet runner with the front end and the corresponding valve plate of the root position of inlet and outlet valve block tongue.Because described air-valve assembly has been cancelled the lift limiter structure that traditional compressor is used, the Lift the during work of valve block tongue can be realized free adjustment with the environmental conditions of different altitude height.
The utility model principle is, in described deep groove ball bearing and needle bearing, all fill the withstand temperature scope and be-40 ℃～+ 200 ℃ lubricating grease, this lubricating grease belongs to high temperature thickening agent multiviscosisty artificial oil, and the interpolation multipurpose additive, have high high-temperature capability and high speed anti-shear ability.
The relative clearance volume of compressor is very little, and less relative clearance volume can make compressor under high altitude environment condition, compressor compresses ends when air-breathing, be unlikely the excessive cylinder interior negative pressure deficiency that causes of gas expanding volume in the clearance volume owing to cylinder, finally cause the compressor can not be air-breathing and can't proper functioning.The design inlet air conditions of the no oily piston compressor of tradition is a barometric pressure, do not consider that the operational area altitude environment changes the influence to compressor air inlet Reed Valve, directly use can bring problems, during as low height above sea level work when air valve late release or the work of high height above sea level air valve phenomenon such as postpone to open, make the compressor air-discharging quantity not sufficient, performance significantly descends.The novel air-valve assembly that the utility model adopts has been cancelled the lift limiter structure that traditional compressor is used, and the Lift of tongue can be realized free adjustment with the difference of working environment state; Strengthened the lifting surface area of the gas load of air-intake valve plate tongue, improved the stress at valve block tongue position, made that tongue is unlikely to cause fractureing owing to rise is highly excessive.Comprehensive above-mentioned two kinds of technological schemes can adapt to oil-free compressor used in locomotive well to the operating mode usage requirement in proper functioning under low temperature or the hot environment and under the high altitude environment condition.
The beneficial effects of the utility model are: fuel-economizing, environmental protection, Operation and Maintenance are simple, and clean pressurized air can be provided, and do not pollute operating environment and gas equipment and system thereof, can bear the usage requirement of rugged environment operating modes such as high temperature, low temperature, high height above sea level.
Description of drawings:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is a profile schematic representation of the present utility model,
Fig. 2 is a sectional drawing of the present utility model,
Fig. 3 be among Fig. 2 A-A to sectional drawing,
Fig. 4 is an oil-free compressor used in locomotive link assembly schematic representation of the present utility model
Fig. 5 is an oil-free compressor used in locomotive air-valve assembly assembling schematic representation of the present utility model
Fig. 6 is an oil-free compressor used in locomotive cylinder assembly schematic representation of the present utility model.
1. fan, 2. radial ball bearing, 3. needle bearing, 4 wrist pins, 5. cylinder, 6. cylinder cap, 7. outlet valve, 8. valve plate, 9. suction valve, 10. motor, 11. connecting rods, 12. pistons, 13. eccentric masss, 14. guide rings, 15. piston rings.
Embodiment:
Referring to Fig. 1,2,3,4, oil-free compressor used in locomotive, comprise members such as motor 10, cylinder 5, piston rod part, air-valve assembly, fan 1, wherein said piston rod part is made up of members such as piston 12, piston ring 15, wrist pin 4, connecting rods 11, and connecting rod small end is connected with piston 12 by described wrist pin 4; Be set with two eccentric masss 13 on the motor shaft, eccentric mass 13 and motor shaft are connected with connnecting rod big end by a radial ball bearing 2 with sealing configuration; Connecting rod small end by two back to what fit together, the needle roller bearing without inner ring 3 with one-sided sealing configuration links to each other with wrist pin 4.Motor 10 is a direct current generator, also can adopt AC motor, and double extension shaft motor one end drives flywheel, and the other end drives the compressor operation parts.Cylinder 5 has two at least, the upper and lower that is arranged in motor shaft of symmetry, also can about arrange and two cylinder coaxials.Connecting rod 11 is enclosed within on the motor shaft by radial ball bearing 2, eccentric mass 13, two needle roller bearing without inner rings 3 with one-sided sealing configuration all are housed in every connecting rod small end, this connecting rod drive piston 12 is implemented in the to-and-fro motion in the cylinder 5, and guide ring 14 and piston ring 15 are arranged on the piston 12.Referring to Fig. 5,6, at cylinder 5 and 6 of cylinder caps suction valve 9, valve plate 8, outlet valve 7 are housed, valve plate 8 is a plate armature, is provided with the inlet and outlet runner, the inlet and outlet valve is fixed on the cylinder 5 together with valve plate 8 by cylinder cover screw.The inlet and outlet chamber is arranged on the cylinder cap 6.1 pair of connecting rod bearing of fan and cylinder 5 enforcement coolings are housed in connecting rod 11 outsides.
Actuating motor 10 during work, and motor shaft drives pistons 12 by eccentric mass 13, radial ball bearing 2, connecting rod 11, needle roller bearing without inner ring 3, wrist pin 4 and pumps in cylinder 5, and the air in the cylinder 5 are carried out air-breathing, compression, exhaust.Air enters cylinder 5 compressions through suction port, suction valve chip 9 on the cylinder cap 6, and finally supplies with the gas system that uses by the relief opening on exhaust valve plate 7 and the cylinder cap 6.In motor 10 rotation processes, that upper and lower two cylinders 5 carry out simultaneously is air-breathing, compression, exhaust, and the inertial force that makes compressor produce is in the course of the work offset fully.
Claims (6)
1. oil-free compressor used in locomotive, comprise members such as motor, cylinder, piston rod part, air-valve assembly, cooling fan, wherein said piston rod part is made up of members such as piston, piston ring, wrist pin, connecting rods, and described connecting rod is connected with described piston by described wrist pin; It is characterized in that being set with two eccentric masss on the motor shaft of described motor, described eccentric mass and described motor shaft are connected with connnecting rod big end by a deep groove ball bearing with sealing configuration; Connecting rod small end links to each other with described wrist pin by two needle bearings with oil seal structure;
Described air-valve assembly comprises valve plate, air-intake valve plate and exhaust valve plate, described air-intake valve plate, exhaust valve plate are arranged in the both sides of described valve plate, described valve plate, air-intake valve plate, exhaust valve plate are equipped with the inlet and outlet runner, directly are fixed on the cylinder by screw together with cylinder cap;
Described valve plate is flat double flow channel structure, is offering the circular hole of two same diameter as air inlet runner with the front end and the corresponding valve plate of the root position of inlet and outlet valve block tongue.
2. according to the described oil-free compressor used in locomotive of claim 1, it is characterized in that two alternate angles between the described eccentric mass are 180 °.
3. according to the described oil-free compressor used in locomotive of claim 1, it is characterized in that all filling in described deep groove ball bearing and the needle bearing withstand temperature scope and be-40～+ 200 ℃ lubricating grease.
4. according to claim 1 or 3 described oil-free compressor used in locomotive, it is characterized in that described deep groove ball bearing is a radial ball bearing.
5. according to the described oil-free compressor used in locomotive of claim 1, it is characterized in that described two needle bearings with oil seal structure are the needle roller bearing without inner rings with one-sided sealing configuration, and the two is back-to-back fitting together.
6. according to the described oil-free compressor used in locomotive of claim 1, it is characterized in that described cylinder has two at least, and described two cylinder coaxials, the two vertically or substantially horizontal be symmetrically arranged in the both sides of described motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201865041U CN201437759U (en) | 2009-07-21 | 2009-07-21 | Oil-free compressor used for locomotives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201865041U CN201437759U (en) | 2009-07-21 | 2009-07-21 | Oil-free compressor used for locomotives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437759U true CN201437759U (en) | 2010-04-14 |
Family
ID=42399733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201865041U Expired - Lifetime CN201437759U (en) | 2009-07-21 | 2009-07-21 | Oil-free compressor used for locomotives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696196A (en) * | 2015-02-27 | 2015-06-10 | 安徽寅时压缩机制造有限公司 | Oil-free constant-temperature compressor |
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
-
2009
- 2009-07-21 CN CN2009201865041U patent/CN201437759U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| CN104696196A (en) * | 2015-02-27 | 2015-06-10 | 安徽寅时压缩机制造有限公司 | Oil-free constant-temperature compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEFEI GENERAL ENVIRONMENT CONTROL TECHNOLOGY CO., Free format text: FORMER OWNER: HEFEI UNIVERSAL MACHINERY INST. Effective date: 20140324 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 230031 HEFEI, ANHUI PROVINCE TO: 230094 HEFEI, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140324 Address after: High tech Zone Hefei city Anhui province 230094 Xisi Road No. 9 (electromechanical Industrial Park) Patentee after: Hefei General Environment Control Technology Co., Ltd. Address before: 230031 Hefei Changjiang Road, Shushan District, Anhui, No. 888 Patentee before: Hefei Universal Machinery Inst. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |
|
| CX01 | Expiry of patent term |