A drive system for a vehicle air compressor test bench

Abstract

The present application provides a drive system for a vehicle air compressor test bench, which includes a support frame, a power mechanism, a transmission mechanism, and a circulating oil tank for supporting the transmission mechanism; the transmission mechanism includes a transmission shaft; one end of the transmission shaft is connected to the power mechanism, and the other end is connected to the output shaft of the vehicle air compressor to be tested through a flexible coupling. The beneficial effects of the present application are as follows: The present application realizes the flexible connection between the transmission shaft and the output shaft of the vehicle air compressor to be tested by setting a flexible coupling. During the simulated test run, the flexible coupling can well compensate for the axial offset, effectively offset the eccentric load operation, prevent damage to the air compressor, and at the same time can effectively reduce vibration and noise, creating a good working environment for the operator.

Description

Technical Field

[0001] This application relates to the technical field of vehicle air compressor testing, and particularly to a drive system for a vehicle air compressor test bench. Background Art

[0002] Currently, there are many types of vehicle air compressor products on the market, and the demand for vehicle air compressor products is gradually increasing. In the existing drive systems of vehicle air compressor test benches, a three-jaw pneumatic chuck is mostly used to clamp and fix the output shaft of the vehicle air compressor. Since the connection between the three-jaw pneumatic chuck and the output shaft of the vehicle air compressor is a rigid connection, during the simulated test run, phenomena such as shaft grinding and rear cover grinding are likely to occur, causing damage to the vehicle air compressor; in addition, when simulating the test run of a high-power vehicle air compressor, a large amount of vibration and noise will be generated, affecting the working environment of the operator. Summary of the Invention

[0003] The purpose of this application is to address the above problems and provide a drive system for a vehicle air compressor test bench.

[0004] This application provides a drive system for a vehicle air compressor test bench, which includes a support frame, a power mechanism, a transmission mechanism, and a circulating oil tank for supporting the transmission mechanism; the transmission mechanism includes a transmission shaft; one end of the transmission shaft is connected to the power mechanism, and the other end is connected to the output shaft of the vehicle air compressor to be tested through a flexible coupling. By adopting the above technical solution, a flexible connection between the transmission shaft and the output shaft of the vehicle air compressor to be tested is achieved. During the simulated test run, the flexible coupling can well compensate for the axial offset, effectively offset the eccentric load operation, effectively solve the problems of shaft grinding and rear cover grinding existing in the existing drive systems of vehicle air compressor test benches, prevent damage to the air compressor, and at the same time can effectively reduce vibration and noise, creating a good working environment for the operator.

[0005] According to the technical solution provided by some embodiments of this application, the flexible coupling and the output shaft of the vehicle air compressor to be tested are circumferentially fixedly connected through a circumferential matching portion. By setting the circumferential matching portion, the circumferential matching and fixed connection between the flexible coupling and the output shaft of the vehicle air compressor to be tested realize effective power transmission. The circumferential matching portion can adapt to the lengths of the output shafts of different vehicle air compressor models. Compared with the existing drive systems of vehicle air compressor test benches, the cost and auxiliary working hours of the auxiliary tooling used during the simulated test run are greatly reduced.

[0006] According to the technical solution provided by some embodiments of this application, the circumferential matching portion includes a shaft-end tooling and an inner sliding sleeve that cooperates with it; the inner sliding sleeve is installed at one end of the flexible coupling, and a sliding groove is provided on its inner surface; the shaft-end tooling is installed on the output shaft of the vehicle air compressor to be tested, and a protrusion that cooperates with the sliding groove is provided on its outer surface; the protrusion is embedded in the sliding groove.

[0007] According to the technical solutions provided by some embodiments of the present application, the power mechanism includes a motor; the output shaft of the motor is connected to the transmission shaft through a belt drive.

[0008] According to the technical solutions provided by some embodiments of the present application, a first synchronous pulley is sleeved on the output shaft of the motor; a second synchronous pulley is sleeved on the transmission shaft; the same belt is wound around the first synchronous pulley and the second synchronous pulley.

[0009] According to the technical solutions provided by some embodiments of the present application, the flexible coupling is a tire coupling.

[0010] Compared with the prior art, the beneficial effects of the present application are as follows: The present application realizes the flexible connection between the transmission shaft and the output shaft of the air compressor for vehicle to be tested by setting a flexible coupling. During the simulated test run, the flexible coupling can well compensate for the axial offset, effectively offset the eccentric load operation, prevent damage to the air compressor, and at the same time can effectively reduce vibration and noise, creating a good working environment for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the transmission system of the air compressor test bench for vehicle provided by the embodiment of the present application;

[0012] Figure 2 It is a schematic structural diagram of the shaft end tooling of the transmission system of the air compressor test bench for vehicle provided by the embodiment of the present application;

[0013] Figure 3 It is a schematic structural diagram of the inner sliding sleeve of the transmission system of the air compressor test bench for vehicle provided by the embodiment of the present application.

[0014] The text markings in the figure are represented as:

[0015] 1. Motor; 2. First expansion sleeve; 3. First synchronous pulley; 4. Belt; 5. Second expansion sleeve; 6. Second synchronous pulley; 7. End cover; 8. Bearing; 9. Transmission shaft; 10. Tire coupling; 11. Inner sliding sleeve; 12. Flange tooling; 13. Shaft end tooling; 14. Support frame; 15. Circulating oil tank; 16. Protrusion; 17. Slide groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present application.

[0017] Please refer to Figure 1, this embodiment provides a drive system for a vehicle air compressor test bench, which includes a support frame 14, a power mechanism, a transmission mechanism, and a circulating oil tank 15. The support frame 14 is the main support component, the power mechanism provides power, the power mechanism is reliably connected to the transmission mechanism, and the transmission mechanism effectively transmits the power to the vehicle air compressor to be tested. The circulating oil tank 15 is fixedly arranged on the upper part of the support frame 14 by bolts and provides reliable support for the transmission mechanism; the transmission mechanism includes a transmission shaft 9. The right end of the transmission shaft 9 is placed outside the circulating oil tank 15 and is connected to the power mechanism. A pair of bearings 8 that cooperate with the transmission shaft 9 are arranged inside the circulating oil tank 15. The bearings 8 are arranged on the right side of the tire coupling 10. The end cover 7 of the bearing 8 is fixedly connected to the circulating oil tank 15 by bolts. The inner hole of the bearing 8 supports the rotation of the transmission shaft 9. The left end of the transmission shaft 9 is connected to the output shaft of the vehicle air compressor to be tested through a flexible coupling. In this embodiment, the flexible coupling used is the tire coupling 10. The right end shaft part of the tire coupling 10 is fixedly connected to the transmission shaft 9 by screws, and the left end shaft part is connected to the output shaft of the vehicle air compressor to be tested. The setting of the tire coupling 10 realizes the flexible connection between the transmission shaft 9 and the output shaft of the vehicle air compressor to be tested. During the simulated test run, it can perform good axial offset compensation, effectively offset the eccentric load operation, prevent damage to the air compressor, and at the same time can effectively reduce vibration and noise, creating a good working environment for the operator. In other embodiments of the present application, the tire coupling 10 can also be replaced with other flexible couplings.

[0018] Preferably, the left end shaft part of the tire coupling 10 and the output shaft of the vehicle air compressor to be tested are circumferentially fixedly connected through a circumferential matching part, so that the circumferential matching and fixed connection between the tire coupling 10 and the output shaft of the vehicle air compressor to be tested realizes effective power transmission. The lengths of the output shafts of different models of vehicle air compressors are different. When the existing drive system for a vehicle air compressor test bench conducts simulated test runs for different models of vehicle air compressors, it is necessary to frequently replace different auxiliary toolings, which wastes working hours. The setting of the circumferential matching part can adapt to the lengths of the output shafts of different models of vehicle air compressors, greatly reducing the cost and working hours of the auxiliary toolings used during the simulated test run; at the same time, because there is no axial force, it can avoid the damage phenomenon of the impact rear cover of the vehicle air compressor to be tested during the test run.

[0019] Please further refer to Figure 2 and Figure 3Preferably, the circumferential matching part includes an axial end fixture 13 and an inner sleeve 11 matched therewith. The right end of the inner sleeve 11 is fixedly connected to the left end shaft of the tire coupling 10 by screws. Three slide grooves 17 are evenly distributed on its inner surface. The axial end fixture 13 is fixedly installed on the output shaft of the vehicle air compressor to be tested by threaded connection. Three protrusions 16 matching the slide grooves 17 are evenly distributed on the outer surface of the axial end fixture 13. When in use, the protrusions 16 are embedded in the slide grooves 17. In other embodiments of the present application, the number of the slide grooves 17 and the protrusions 16 matched therewith can also be set to any number other than 3 as required. The front end of the circulating oil tank 15 is fixedly connected to the vehicle air compressor to be tested by the flange fixture 12. The flange fixture 12 is conducive to the coaxial positioning of the vehicle air compressor and the vehicle air compressor test bench transmission system. The two sides of the circulating oil tank 15 are equipped with pneumatic cylinders for pressing the flange fixture 12, so as to realize the reliable connection between the inner sleeve 11 and the axial end fixture 13. In other embodiments of the present application, the circumferential mating portion may also be other structures that can achieve a circumferential fixed connection, such as a key connection between the transmission shaft 9 and the output shaft of the vehicle air compressor to be tested.

[0020] Preferably, the power mechanism includes a motor 1, which is arranged at the lower part of the support frame 14 and fixedly connected to the support frame 14 by bolts. The output shaft of the motor 1 is connected to the right end of the transmission shaft 9 by a belt 4. The output shaft of the motor 1 is fixedly connected to the first synchronous pulley 3 by a first expansion sleeve 2, and the right end of the transmission shaft 9 is fixedly connected to the second synchronous pulley 6 by a second expansion sleeve 5. The first synchronous pulley 3 and the second synchronous pulley 6 are wrapped with the same belt 4, so that the power provided by the motor 1 can be effectively transmitted to the transmission shaft 9.

[0021] The vehicle air compressor test bench transmission system provided in the present application is used in conjunction with the supporting oil supply system, air circuit system and electrical system when conducting a simulated test of the vehicle air compressor, thereby realizing monitoring and data collection of the simulated test process of the vehicle air compressor, and then reliably completing the simulated test process of the vehicle air compressor.

[0022] The vehicle air compressor test bench transmission system provided in the present application, by providing a flexible coupling, can well compensate for the inter-axis offset during the simulation test, effectively offset the eccentric load operation, and prevent the occurrence of the phenomenon of grinding the shaft and the rear cover, that is, it can effectively prevent the vehicle from causing damage to the air compressor, and at the same time can effectively reduce vibration and noise, creating a good working environment for operators; by providing a circumferential mating part, it can not only effectively transmit power, but also adapt to the length of the output shaft of different vehicle air compressors. At the same time, because there is no axial force, the damage to the rear cover of the vehicle air compressor to be tested during the test can be avoided.

[0023] In this text, specific examples are used to illustrate the principles and implementation modes of the present application. The description of the above embodiments is only for helping to understand the method and its core idea of the present application. The above is only the preferred implementation mode of the present application. It should be noted that due to the limited nature of literal expression and objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present application.

Claims

1. A drive system for a vehicle air compressor test bench, characterized in that It includes a support frame (14), a power mechanism, a transmission mechanism, and a circulating oil tank (15) that supports the transmission mechanism; the transmission mechanism includes a transmission shaft (9); one end of the transmission shaft (9) is connected to the power mechanism, and the other end is connected to the output shaft of the air compressor for the vehicle to be tested through a flexible coupling; the setting of the flexible coupling realizes the flexible connection between the transmission shaft (9) and the output shaft of the air compressor for the vehicle to be tested. The flexible coupling is circumferentially and fixedly connected to the output shaft of the air compressor for the vehicle to be tested through a circumferential matching part. The circumferential matching part includes a shaft-end tooling (13) and an inner sliding sleeve (11) that mates with it; the inner sliding sleeve (11) is installed at one end of the flexible coupling, and its inner surface is provided with a chute (17); the shaft-end tooling (13) is installed on the output shaft of the air compressor for the vehicle to be tested, and its outer surface is provided with a protrusion (16) that mates with the chute (17); the protrusion (16) is embedded in the chute (17). The setting of the circumferential matching part can adapt to the lengths of the output shafts of different models of air compressors for vehicles, greatly reducing the cost and working hours of the auxiliary tooling used in the simulated test drive process. At the same time, because there is no axial force, it can avoid the damage of the impact cover of the air compressor for the vehicle to be tested during the test drive process. The front end of the circulating oil tank (15) is fixedly connected to the air compressor for the vehicle to be tested through a flange tooling (12). The flange tooling (12) is beneficial to the coaxial positioning of the air compressor for the vehicle and the transmission system of the air compressor test bench for the vehicle. Pneumatic cylinders for pressing the flange tooling (12) are arranged on both sides of the circulating oil tank (15), so as to realize the reliable connection between the inner sliding sleeve (11) and the shaft-end tooling (13).

2. The drive system of the vehicle air compressor test bench according to claim 1, characterized in that The power mechanism includes a motor (1); the output shaft of the motor (1) is connected to the transmission shaft (9) through belt drive.

3. The drive system of the vehicle air compressor test bench according to claim 2, characterized in that, A first synchronous pulley (3) is sleeved on the output shaft of the motor (1); a second synchronous pulley (6) is sleeved on the transmission shaft (9); the same belt (4) is wound around the first synchronous pulley (3) and the second synchronous pulley (6).

4. The drive system of the vehicle air compressor test bench according to claim 1, wherein, The flexible coupling is a tire coupling (10).

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