Axle rear cover air tightness inspection and detection platform

Abstract

The utility model discloses an axle rear cover air tightness inspection and detection platform, which relates to the axle rear cover detection technical field and comprises a workbench, the rear side of the workbench is fixedly provided with a stand column, the stand column is fixedly provided with a fixed seat, the rear side of the bottom end of the fixed seat is fixedly provided with an exhaust pipe, and the exhaust pipe is fixedly provided with an air outlet. A supporting plate is fixedly installed on the front side of the top end of the fixing base, and a plurality of sets of supporting screw rods are installed on the supporting plate in a matched mode. According to the design scheme, the threaded sleeve is aligned with the exhaust pipe, the supporting screw rod is matched with the exhaust pipe to support the axle rear cover, the sealing plug is driven by the air cylinder to descend to block the inner hole of the threaded sleeve, the axle rear cover is filled with water through the water injection assembly, the exhaust pipe covers the bottom of the threaded sleeve, and the sealing plug blocks the inner hole of the threaded sleeve, so that the rear cover of the axle is sealed. Therefore, gas in the exhaust pipe can only leak outwards from the welding position, and a worker can quickly judge whether the air tightness of the axle rear cover is qualified or not by observing whether bubbles exist in water or not.

Description

Technical Field

[0001] This utility model relates to the field of vehicle axle rear cover testing technology, and in particular to a vehicle axle rear cover airtightness testing platform. Background Technology

[0002] The rear axle cover is an important component of a car. It, along with the axle housing, main reducer, differential, and wheel transmission, forms the drive axle. The axle housing of the drive axle contains lubricating oil to lubricate gears, bearings, and other components.

[0003] During the production process of the axle rear cover, components such as threaded sleeves or tubing need to be welded onto the axle rear cover to achieve effective connection with other components. If there are gaps at the weld, it will affect the sealing of the drive axle, leading to lubricating oil leakage, which will have a great impact on the driving safety and life of the vehicle. To address this, we propose an axle rear cover airtightness testing platform. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the existing technology, this utility model provides a vehicle axle rear cover airtightness testing platform.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a vehicle axle rear cover airtightness testing platform, including a workbench, a column fixedly installed on the rear side of the workbench, a fixed seat fixedly installed on the column, an exhaust pipe fixedly installed on the rear bottom end of the fixed seat, a support plate fixedly installed on the front top end of the fixed seat, a number of sets of support screws installed on the support plate, a cylinder fixedly installed on the top of the fixed seat, a sealing plug fixedly installed on the power output shaft of the cylinder, the sealing plug being coaxially arranged with the exhaust pipe, a water injection assembly installed on the front top end of the fixed seat, and a water storage tank provided below the fixed seat.

[0006] Furthermore, the fixing base has a C-shaped structure, and a groove is provided at the bottom of the fixing base. The exhaust pipe is fixedly installed in the groove, and a sealing ring is fixedly installed at the top of the exhaust pipe near the edge. An air intake chamber is provided on the inner side of the sealing ring. An air pipe connector is fitted on the side wall of the exhaust pipe, and a clearance groove corresponding to the position of the air pipe connector is provided on the side wall of the groove.

[0007] Furthermore, a connecting nut is fitted onto the support screw, the connecting nut is fixedly mounted on the support plate, and a screw head is provided at the top of the support screw.

[0008] Furthermore, the water storage tank is fixedly installed on the top of the workbench, a water pump is fixedly installed inside the water storage tank, and a drain valve is installed at the bottom of the rear side wall of the water storage tank.

[0009] Furthermore, the water injection assembly includes a connecting seat, which is fixedly installed on a fixed base. A water injection valve is fixedly installed on the connecting seat, and the water injection valve is connected to a water pump through a water pipe.

[0010] The beneficial effects of this utility model are as follows: the design of this utility model aligns the screw sleeve with the exhaust pipe, and supports the rear cover of the axle with the exhaust pipe through the support screw. The sealing plug descends under the drive of the cylinder to block the inner hole of the screw sleeve, and the rear cover of the axle is filled with water through the water injection component. Since the exhaust pipe is covered at the bottom of the screw sleeve, and the sealing plug blocks the inner hole of the screw sleeve, the gas in the exhaust pipe can only leak out from the weld. By observing whether there are air bubbles in the water, the staff can quickly determine whether the airtightness of the rear cover of the axle is qualified, so as to ensure the driving safety and life of the vehicle. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is the front view of the present invention;

[0014] Figure 3 This is the right view of the present invention;

[0015] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0016] Figure 5 for Figure 4 A magnified view of a portion of region B in the middle.

[0017] In the diagram: 1. Workbench, 2. Column, 3. Fixing seat, 31. Groove, 32. Clearance groove, 4. Exhaust pipe, 41. Intake chamber, 5. Sealing ring, 6. Air pipe connector, 7. Support plate, 8. Support screw, 81. Tightening head, 9. Connecting nut, 10. Cylinder, 11. Sealing plug, 12. Water tank, 13. Water pump, 14. Drain valve, 15. Connecting seat, 16. Water injection valve, 17. Axle rear cover, 18. Screw sleeve. Detailed Implementation

[0018] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0019] according to Figure 1-5 As shown, a vehicle axle rear cover airtightness testing platform includes a workbench 1, a column 2 fixedly installed on the rear side of the workbench 1, a fixed seat 3 fixedly installed on the column 2, an exhaust pipe 4 fixedly installed on the rear bottom end of the fixed seat 3, a support plate 7 fixedly installed on the front top end of the fixed seat 3 by bolts, a number of sets of support screws 8 are installed on the support plate 7, a cylinder 10 is fixedly installed on the top of the fixed seat 3, a sealing plug 11 is fixedly installed on the power output shaft of the cylinder 10, the sealing plug 11 is coaxially arranged with the exhaust pipe 4, a water injection component is installed on the front top end of the fixed seat 3, and a water storage tank 12 is provided below the fixed seat 3.

[0020] In this embodiment, the fixing base 3 has a C-shaped structure. A groove 31 is provided at the bottom of the fixing base 3. The exhaust pipe 4 is fixedly installed in the groove 31. The top end of the exhaust pipe 4 extends upward through the top wall of the groove 31. A sealing ring 5 is fixedly installed near the edge of the top end of the exhaust pipe 4. An air inlet chamber 41 is provided on the inner side of the sealing ring 5. An air pipe connector 6 is installed on the side wall of the exhaust pipe 4 by threaded engagement. A clearance groove 32 corresponding to the position of the air pipe connector 6 is provided on the side wall of the groove 31. The air pipe connector 6 is connected to the air supply equipment through an air pipe. The gas generated by the air supply equipment is transported to the air inlet chamber 41 through the air pipe. The diameter of the air inlet chamber 41 of the exhaust pipe 4 is larger than the diameter of the threaded sleeve 18 on the rear cover 17 of the axle. During testing, the exhaust pipe 4 covers the bottom of the threaded sleeve 18 on the rear cover 17 of the axle, and the connection between the exhaust pipe 4 and the rear cover 17 of the axle is sealed by the sealing ring 5 to prevent the gas in the air inlet chamber 41 from leaking out from the connection between the exhaust pipe 4 and the rear cover 17 of the axle, which would affect the accuracy of the test results.

[0021] In this embodiment, a connecting nut 9 is installed on the support screw 8 by means of thread engagement. The connecting nut 9 is welded to the support plate 7. The top of the support screw 8 is provided with a screw head 81. During testing, the support screw 8 and the exhaust pipe 4 are used to support the axle rear cover 17. The operator uses a wrench or other tools to rotate the screw head 81 to adjust the height of the support screw 8 for different shapes of axle rear covers 17.

[0022] In this embodiment, the water storage tank 12 is fixedly installed on the top of the workbench 1. A water pump 13 is fixedly installed inside the water storage tank 12. A drain valve 14 is installed at the bottom of the rear side wall of the water storage tank 12. The water storage tank 12 stores a certain amount of water for testing. The water in the water storage tank 12 can be discharged outward through the drain valve 14, so that the staff can clean the water storage tank 12 regularly or replace the water in the water storage tank 12.

[0023] In this embodiment, the water injection assembly includes a connecting seat 15, which is fixedly mounted on the fixed seat 3 by bolts. A water injection valve 16 is fixedly mounted on the connecting seat 15. The water injection valve 16 is connected to the water pump 13 through a water pipe. During testing, the water injection valve 16 is opened, and the water in the water storage tank 12 is injected into the axle rear cover 17 by the action of the water pump 13. If the airtightness of the axle rear cover 17 does not meet the standard, air bubbles will emerge from the water. Therefore, by observing whether there are air bubbles in the water, the staff can quickly determine whether the airtightness of the axle rear cover 17 is qualified. After the test is completed, the staff pours the water in the axle rear cover 17 back into the water storage tank 12.

[0024] In use, this invention first adjusts the height of the support screw 8 according to the rear cover 17 of the axle to be tested, so that the support screw 8 and the exhaust pipe 4 can stably support the rear cover 17 of the axle. During testing, the screw sleeve 18 is aligned with the exhaust pipe 4, and the rear cover 17 of the axle is placed above the exhaust pipe 4 and the support screw 8. The support screw 8 and the exhaust pipe 4 support the rear cover 17 of the axle. Then, the cylinder 10 is activated, and the sealing plug 11 descends under the drive of the cylinder 10 to block the inner hole of the screw sleeve 18. At the same time as the sealing plug 11 descends, the exhaust pipe 4 exhausts gas outward. To remove water or other impurities from the intake chamber 41 to avoid affecting the test results, after the sealing plug 11 completely blocks the inner hole of the threaded sleeve 18, the water pump 13 is started, and the staff opens the water injection valve 16 to fill the axle rear cover 17 with water. Since the exhaust pipe 4 is covered at the bottom of the threaded sleeve 18, and the sealing plug 11 blocks the inner hole of the threaded sleeve 18, the gas in the exhaust pipe 4 can only leak out from the weld. The staff can quickly determine whether the airtightness of the axle rear cover 17 is qualified by observing whether there are air bubbles in the water, so as to ensure the driving safety and life of the vehicle.

[0025] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A platform for testing the airtightness of a vehicle axle rear cover, comprising a workbench (1), characterized in that: A column (2) is fixedly installed on the rear side of the workbench (1). A fixed seat (3) is fixedly installed on the column (2). An exhaust pipe (4) is fixedly installed on the rear side of the bottom end of the fixed seat (3). A support plate (7) is fixedly installed on the front side of the top end of the fixed seat (3). Several sets of support screws (8) are installed on the support plate (7). A cylinder (10) is fixedly installed on the top of the fixed seat (3). A sealing plug (11) is fixedly installed on the power output shaft of the cylinder (10). The sealing plug (11) is coaxially arranged with the exhaust pipe (4). A water injection component is installed on the front side of the top end of the fixed seat (3). A water storage tank (12) is provided below the fixed seat (3).

2. The axle rear cover airtightness testing platform according to claim 1, characterized in that, The fixing seat (3) has a C-shaped structure. The bottom of the fixing seat (3) is provided with a groove (31). The exhaust pipe (4) is fixedly installed in the groove (31). A sealing ring (5) is fixedly installed at the top of the exhaust pipe (4) near the edge. An air inlet chamber (41) is provided on the inner side of the sealing ring (5). An air pipe connector (6) is installed on the side wall of the exhaust pipe (4). A clearance groove (32) corresponding to the position of the air pipe connector (6) is provided on the side wall of the groove (31).

3. The axle rear cover airtightness testing platform according to claim 2, characterized in that, A connecting nut (9) is fitted on the support screw (8), and the connecting nut (9) is fixedly installed on the support plate (7). A screw head (81) is provided at the top of the support screw (8).

4. The axle rear cover airtightness testing platform according to claim 1, characterized in that, The water storage tank (12) is fixedly installed on the top of the workbench (1), and a water pump (13) is fixedly installed inside the water storage tank (12). A drain valve (14) is installed at the bottom of the rear side wall of the water storage tank (12).

5. The axle rear cover airtightness testing platform according to claim 4, characterized in that, The water injection assembly includes a connecting seat (15), which is fixedly installed on a fixed seat (3). A water injection valve (16) is fixedly installed on the connecting seat (15), and the water injection valve (16) is connected to the water pump (13) through a water pipe.

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