CN213176048U - Crankshaft of vehicle-mounted air conditioner compressor - Google Patents
Crankshaft of vehicle-mounted air conditioner compressor Download PDFInfo
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- CN213176048U CN213176048U CN202022190689.2U CN202022190689U CN213176048U CN 213176048 U CN213176048 U CN 213176048U CN 202022190689 U CN202022190689 U CN 202022190689U CN 213176048 U CN213176048 U CN 213176048U
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- crankshaft
- eccentric block
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Abstract
The utility model provides a vehicle-mounted air conditioner compressor's bent axle belongs to mechanical technical field. The problems that the crankshaft of the existing vehicle-mounted air conditioner compressor is high in manufacturing difficulty, high in manufacturing cost and low in production efficiency are solved. This vehicle-mounted air conditioner compressor's bent axle, including axis body, eccentric block and eccentric post, axis body and eccentric post be threaded connection respectively at the both ends of eccentric block, and one end threaded connection on the eccentric block has the locking to cover one, and the lateral wall of axis body is equipped with convex shoulder one, and the eccentric block is equipped with annular groove one, and convex shoulder one inlays in annular groove one and the inner of locking cover one supports to press on convex shoulder one's outer terminal surface. The crankshaft of the vehicle-mounted air conditioner compressor has the advantages of convenience in manufacturing and lower manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of machinery, a bent axle, especially a vehicle-mounted air condition compressor's bent axle is related to.
Background
Because of the characteristics of involute scroll motion, scroll compressors must employ an eccentric mechanism to ensure their normal motion. The crankshaft of the existing compressor is of an integral structure, and the precision requirement is high; the crankshaft with the integral structure not only has high requirements on the precision of used equipment and tool fixtures, but also has high requirements on the technical level of manufacturers. This monolithic structure of the crankshaft has the following problems and drawbacks in the manufacturing process:
firstly, the consumed materials are more whether the materials are processed and manufactured by adopting bar stocks or forged blanks; secondly, the production efficiency is low, and due to the existence of the eccentric block on the crankshaft, the machining allowance is large, the machining difficulty is large, the machining time is long, and the detection is difficult; thirdly, the rejection rate is high, as the precision of forging equipment is reduced, operators neglect carelessly, the rejection rate of the integral eccentric column forging billet is as high as 30%, and the rejection rate is still about 10% through strict control; and fourthly, the universality and the interoperability are poor, the integral crankshaft only can be used for a scroll compressor with a certain model structure, and the universality and the interoperability are not good.
As disclosed in chinese patent document, a crankshaft assembly of a compressor and a compressor having the same (application No. 201510397716.4), the crankshaft assembly of the compressor includes: the crankshaft comprises a main shaft, an eccentric oil duct with an opening at the lower end is limited in the main shaft, the eccentric oil duct is eccentrically arranged relative to the central axis of the main shaft, an oil outlet communicated with the outside is formed in one side, close to the outer wall surface of the main shaft, of the eccentric oil duct, and an oil drain communicated with the outside is formed in one side, far away from the outer wall surface of the main shaft, of the eccentric oil duct. However, the crankshaft of the crankshaft assembly of the compressor is of an integrated structure, so that the manufacturing difficulty is high, the manufacturing cost is high, and the production efficiency is low.
Disclosure of Invention
The utility model aims at having the above-mentioned problem to current technique, provided a manufacturing convenience, the lower vehicle-mounted air conditioner compressor's of manufacturing cost bent axle.
The purpose of the utility model can be realized by the following technical proposal: the crankshaft of the vehicle-mounted air conditioner compressor comprises a shaft body, an eccentric block and an eccentric column, and is characterized in that the shaft body and the eccentric column are respectively in threaded connection with two ends of the eccentric block, one end of the eccentric block is in threaded connection with a first locking cover, a first convex shoulder is arranged on the outer side wall of the shaft body, the eccentric block is provided with a first annular groove, the first convex shoulder is embedded in the first annular groove, and the inner end of the first locking cover is abutted against the outer end face of the first convex shoulder.
During assembly, the shaft body penetrates through and is in threaded connection with one end of the eccentric block, the first convex shoulder is embedded into the first annular groove, the first locking cover is in threaded connection with the eccentric block, the inner end of the first locking cover abuts against the outer end face of the first convex shoulder, positioning of the first shaft body is achieved, looseness of the first shaft body is avoided, and the shaft body has the advantages of convenience in manufacturing, low manufacturing cost and suitability for batch production.
In the crankshaft of the vehicle-mounted air conditioner compressor, the eccentric block is in threaded connection with a first positioning pin, and the inner end of the first positioning pin abuts against and presses the first locking cover. By adopting the arrangement, the locking cover I is firmly positioned, and the locking cover I is prevented from loosening.
In the crankshaft of the vehicle-mounted air conditioner compressor, the other end of the eccentric block is provided with a second annular groove, one end of the eccentric column is provided with a second convex shoulder, and the second convex shoulder is embedded in the second annular groove. The convex shoulder II of the eccentric column is embedded in the annular groove II, so that the eccentric column has the advantages of good positioning effect and difficulty in deviation.
In the crankshaft of the vehicle-mounted air conditioner compressor, the eccentric block is in threaded connection with a second locking cover, and the inner end of the second locking cover is pressed against the second convex shoulder. By adopting the arrangement, the positioning device has a better positioning effect on the eccentric column II.
In the crankshaft of the vehicle-mounted air conditioner compressor, the eccentric block is in threaded connection with a second positioning pin, and the inner end of the second positioning pin abuts against and presses the second locking cover. By adopting the arrangement, the locking cover II is firmly positioned, and the looseness of the locking cover II is avoided.
In the crankshaft of the vehicle-mounted air conditioner compressor, the outer side wall of the shaft body is provided with a spiral lubricating groove. The lateral wall of axis body is equipped with helical shape lubrication groove, has better lubricated effect.
In the crankshaft of the vehicle-mounted air conditioner compressor, the cross section of the lubricating groove is trapezoidal. By adopting the arrangement, the lubricating effect is improved.
In the crankshaft of the vehicle-mounted air conditioner compressor, the shaft body, the eccentric block and the eccentric column are all made of QT600-3 materials. The shaft body, the eccentric block and the eccentric column are made of QT600-3 materials, so that the shaft body, the eccentric block and the eccentric column have the advantages of high strength, good wear resistance and good vibration reduction performance.
Compared with the prior art, the crankshaft of the vehicle-mounted air conditioner compressor has the following advantages:
1. the shaft body penetrates through and is in threaded connection with one end of the eccentric block, the convex shoulder I is embedded into the annular groove I, the locking cover I is in threaded connection with the eccentric block, the inner end of the locking cover I abuts against the outer end face of the convex shoulder I, looseness of the shaft body I is avoided, and the shaft body I has the advantages of convenience in manufacturing, low manufacturing cost and suitability for batch production;
2. the eccentric block is in threaded connection with a first positioning pin, and the inner end of the first positioning pin is pressed against the first locking cover, so that the first locking cover is firmly positioned, and the first locking cover is prevented from loosening;
3. the convex shoulder II of the eccentric column is embedded in the annular groove II, so that the eccentric column has the advantages of good positioning effect and difficulty in deviation;
4. the lateral wall of axis body is equipped with helical shape lubrication groove, and lubrication groove's transversal personally submits trapezoidal, has improved lubricated effect.
Drawings
Fig. 1 is a schematic front view of a crankshaft of the present onboard air conditioning compressor.
Fig. 2 is a schematic sectional view of a crankshaft of the present onboard air conditioning compressor.
In the figure, 1, a shaft body; 1a, a first shoulder; 2. an eccentric block; 2a, a first annular groove; 2b, a second annular groove; 3. an eccentric column; 3a, a shoulder II; 4. a first locking cover; 5. a first positioning pin; 6. a second locking cover; 7. a second positioning pin; 8. a lubrication groove.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the crankshaft of the vehicle-mounted air conditioner compressor comprises a shaft body 1, an eccentric block 2 and an eccentric column 3, and is characterized in that the shaft body 1 and the eccentric column 3 are respectively in threaded connection with two ends of the eccentric block 2, one end of the eccentric block 2 is in threaded connection with a locking cover one 4, the outer side wall of the shaft body 1 is provided with a first convex shoulder 1a, the eccentric block 2 is provided with a first annular groove 2a, the first convex shoulder 1a is embedded in the first annular groove 2a, and the inner end of the locking cover one 4 abuts against the outer end face of the first convex shoulder 1 a. The eccentric block 2 is in threaded connection with a first positioning pin 5, the inner end of the first positioning pin 5 abuts against the first locking cover 4, the first locking cover 4 is firmly positioned, and looseness of the first locking cover 4 is avoided.
The other end of the eccentric block 2 is provided with a second annular groove 2b, one end of the eccentric column 3 is provided with a second convex shoulder 3a, and the second convex shoulder 3a is embedded in the second annular groove 2 b. The eccentric block 2 is in threaded connection with a second locking cover 6, and the inner end of the second locking cover 6 is pressed against the second convex shoulder 3 a. The eccentric block 2 is in threaded connection with a second positioning pin 7, the inner end of the second positioning pin 7 is pressed against the second locking cover 6, the second locking cover 6 is firmly positioned, and looseness of the second locking cover 6 is avoided.
The lateral wall of axis body 1 is equipped with spiral lubrication groove 8, and lubrication groove 8's transversal personally submits trapezoidal, has better lubricated effect.
The shaft body 1, the eccentric block 2 and the eccentric column 3 are all made of QT600-3 materials, so that the shaft body 1, the eccentric block 2 and the eccentric column 3 have the advantages of high strength, good wear resistance and good vibration reduction performance.
During assembly, the shaft body 1 penetrates through and is in threaded connection with one end of the eccentric block 2, the convex shoulder I1 a is embedded into the annular groove I2 a, the locking cover I4 is in threaded connection with the eccentric block 2, the inner end of the locking cover I4 abuts against the outer end face of the convex shoulder I1 a, the positioning pin I5 is in threaded connection with the eccentric block 2, and the inner end of the positioning pin I5 abuts against the locking cover I4 to achieve positioning of the shaft body 1I; the eccentric column 3 penetrates through and is in threaded connection with the other end of the eccentric block 2, the convex shoulder II 3a is embedded in the annular groove II 2b, the locking cover II 6 is in threaded connection with the eccentric block 2, the inner end of the locking cover II 6 is pressed against the outer end face of the convex shoulder II 3a, the positioning pin II 7 is in threaded connection with the eccentric block 2, and the inner end of the positioning pin II 7 is pressed against the locking cover I4 to position the shaft body 1 II.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms shaft body 1, shoulder one 1a, eccentric block 2, annular groove one 2a, annular groove two 2b, eccentric column 3, shoulder two 3a, locking cover one 4, positioning pin one 5, locking cover two 6, positioning pin two 7, lubrication groove 8, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (8)
1. Crankshaft of vehicle-mounted air conditioner compressor, including axis body (1), eccentric block (2) and eccentric post (3), its characterized in that, axis body (1) and eccentric post (3) threaded connection respectively the both ends of eccentric block (2), eccentric block (2) on one end threaded connection have locking to cover (4), the lateral wall of axis body (1) be equipped with convex shoulder one (1a), eccentric block (2) be equipped with annular groove one (2a), convex shoulder one (1a) inlay in annular groove one (2a) just the inner of locking cover one (4) support and press on the outer terminal surface of convex shoulder one (1 a).
2. The crankshaft of the vehicle-mounted air-conditioning compressor as claimed in claim 1, wherein a first locating pin (5) is connected to the eccentric block (2) in a threaded manner, and the inner end of the first locating pin (5) abuts against the first locking cover (4).
3. The crankshaft of the vehicle air conditioner compressor as claimed in claim 1, wherein the other end of the eccentric block (2) is provided with a second annular groove (2b), one end of the eccentric column (3) is provided with a second shoulder (3a) and the second shoulder (3a) is embedded in the second annular groove (2 b).
4. The crankshaft of the vehicle-mounted air-conditioning compressor as claimed in claim 3, wherein the eccentric block (2) is in threaded connection with a second locking cover (6) and the inner end of the second locking cover (6) is pressed against the second shoulder (3 a).
5. The crankshaft of the vehicle-mounted air-conditioning compressor as claimed in claim 4, wherein a second positioning pin (7) is connected to the eccentric block (2) in a threaded manner, and the inner end of the second positioning pin (7) abuts against the second locking cover (6).
6. The crankshaft of the vehicle air-conditioning compressor according to the claim 1 or 2 or 3 or 4 or 5, characterized in that the outer side wall of the shaft body (1) is provided with a spiral lubrication groove (8).
7. The crankshaft of the vehicle air conditioner compressor as claimed in claim 6, wherein the cross section of the lubricating groove (8) is trapezoidal.
8. The crankshaft of the vehicle air-conditioning compressor as claimed in claim 1 or 2 or 3 or 4 or 5, wherein the shaft body (1), the eccentric block (2) and the eccentric column (3) are all made of QT600-3 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022190689.2U CN213176048U (en) | 2020-09-29 | 2020-09-29 | Crankshaft of vehicle-mounted air conditioner compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022190689.2U CN213176048U (en) | 2020-09-29 | 2020-09-29 | Crankshaft of vehicle-mounted air conditioner compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176048U true CN213176048U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022190689.2U Active CN213176048U (en) | 2020-09-29 | 2020-09-29 | Crankshaft of vehicle-mounted air conditioner compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176048U (en) |
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2020
- 2020-09-29 CN CN202022190689.2U patent/CN213176048U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: The crankshaft of the on-board air conditioning compressor Effective date of registration: 20230712 Granted publication date: 20210511 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch Pledgor: Zhejiang zhongmaiya Machinery Co.,Ltd. Registration number: Y2023980048095 |