Drive axle housing sealing performance detection device

Abstract

The utility model discloses a drive axle housing leakproofness detection device, and relates to the automobile leakproofness detection technology field, the drive axle housing leakproofness detection device comprises a base plate, a drive axle housing and an L-shaped plate, the top of the base plate is provided with a first air bag and a second air bag, the drive axle housing is arranged between two clamping plates, two installation sleeves are respectively sleeved on outlets at two ends of the drive axle housing, and the first air bag and the second air bag are arranged on the L-shaped plate. A worker presses the first air bag, and air enters the drive axle shell through one air pipe and the mounting sleeve and then enters the second air bag through the other air pipe and the mounting sleeve. If the drive axle shell does not leak air, air in the first air bag is squeezed into the second air bag to enable the second air bag to completely expand, the fixing block is squeezed, the reset spring is compressed, the top of the fixing block presses the switch, and the prompter sounds, the sealing performance is good; if the air tightness is poor, the gas leaks, the second air bag expands and does not extrude the switch, the poor air tightness can be detected, the method can conveniently and rapidly detect the air tightness of the drive axle shell, and the requirement for efficient production is met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air tightness detection, in particular to a driving axle axle housing sealing detection device. Background Art

[0002] The drive axle is the mechanism at the end of the drivetrain that changes the speed and torque from the transmission and transmits them to the drive wheels. It typically consists of a final drive, differential, wheel drive system, and drive axle housing. Steering axles also have constant velocity joints. Furthermore, the drive axle must withstand vertical, longitudinal, and lateral forces acting between the road surface and the vehicle frame or body, as well as braking torque and reaction forces.

[0003] In the existing technology, the sealing of the drive axle housing is mainly tested by traditional methods such as the immersion method. The immersion method requires the axle housing to be completely immersed in water, and the staff needs to observe with the naked eye whether there are bubbles. In addition, after testing one axle housing, the axle housing needs to be taken out of the water and dried before the next test can be carried out. The above tests are not only time-consuming and cumbersome to operate, but also take a long time and are inefficient, making it difficult to meet the high-efficiency requirements of modern automobile production. Utility Model Content

[0004] The purpose of the present utility model is to provide a driving axle bridge housing sealing detection device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides a drive axle bridge housing sealing detection device, including a base plate, a drive axle housing, and an L-shaped plate. A first airbag and a second airbag are provided on the top of the base plate. The outer walls of the first airbag and the second airbag are fixedly installed with air pipes and mounting sleeves. A telescopic spring is installed inside the first airbag, and a compression spring is fixedly installed inside the second airbag. A reset spring and a switch are fixedly installed on the inner top wall of the L-shaped plate, a fixed block is fixedly installed on the bottom of the reset spring, and a prompter is fixedly installed on the top of the L-shaped plate.

[0006] Furthermore, a plurality of guide rods are fixedly mounted on the inner top wall of the L-shaped plate, and the telescopic ends of the guide rods are fixedly mounted on the top of the fixed block.

[0007] Furthermore, a mounting plate and a telescopic rod are fixedly mounted inside the first airbag and the second airbag, and the telescopic end of the telescopic rod is fixedly mounted on the bottom of the mounting plate.

[0008] Furthermore, two clamping plates are fixedly mounted on the top of the bottom plate, and sponges are fixedly mounted on opposite sides of the two clamping plates.

[0009] Furthermore, the material of the mounting sleeve is rubber.

[0010] Furthermore, an anti-collision layer is installed on the bottom of the fixing block.

[0011] Furthermore, the prompter is electrically connected to the switch.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. In this utility model, the drive axle housing is placed between two plywood plates, with two mounting sleeves fitted over its two end outlets. A worker presses the first airbag, causing gas to enter the drive axle housing through the air tube and mounting sleeve, and then through another air tube and mounting sleeve to enter the second airbag. If the drive axle housing is leak-proof, the gas from the first airbag squeezes into the second airbag, causing it to fully inflate. This squeezes the fixed block, compresses the return spring, and presses the switch on top of the fixed block, causing a sound indicator to sound, indicating a good seal. If the seal is poor, indicating a gas leak, the second airbag expands without squeezing the switch, thus detecting a poor seal. This method allows for quick and convenient testing of the drive axle housing's airtightness, meeting the demands for efficient production.

[0014] 2. In the present invention, after the first airbag is squeezed, the telescopic spring can assist the first airbag in resetting; after the second airbag is expanded, the compression spring can compress the second airbag and restore it to its original shape, facilitating the inspection of the next drive axle housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the fixed block and the guide rod in the present utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the air pipe and the installation sleeve in the utility model.

[0019] In the figure: 1. Base plate; 2. Drive axle housing; 3. First airbag; 4. Air pipe; 5. Mounting sleeve; 6. Second airbag; 7. Fixing block; 8. Return spring; 9. Prompt; 10. Switch; 11. Guide rod; 12. L-shaped plate; 13. Compression spring; 14. Mounting plate; 15. Telescopic rod; 16. Telescopic spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0022] See Figure 1-Figure 4 The present invention shows a drive axle housing sealing detection device, comprising a base plate 1, a drive axle housing 2, and an L-shaped plate 12. A first airbag 3 and a second airbag 6 are provided on the top of the base plate 1. The outer walls of the first airbag 3 and the second airbag 6 are fixedly installed with an air pipe 4 and a mounting sleeve 5. A telescopic spring 16 is installed inside the first airbag 3, and a compression spring 13 is fixedly installed inside the second airbag 6. A reset spring 8 and a switch 10 are fixedly installed on the inner top wall of the L-shaped plate 12. A fixing block 7 is fixedly installed on the bottom of the reset spring 8, and a prompter 9 is fixedly installed on the top of the L-shaped plate 12.

[0023] See Figure 1-3 A plurality of guide rods 11 are fixedly mounted on the inner top wall of the L-shaped plate 12 , and the telescopic ends of the guide rods 11 are fixedly mounted on the top of the fixed block 7 .

[0024] A plurality of guide rods 11 are provided on the inner top wall of the L-shaped plate 12, which provide a stable guiding effect for the movement of the fixed block 7, ensuring that the fixed block 7 always moves in a predetermined direction during the up and down movement without deviation or shaking, thereby ensuring the accuracy and stability of the detection device.

[0025] See Figure 1-4 A mounting plate 14 and a telescopic rod 15 are fixedly installed inside the first airbag 3 and the second airbag 6 , and the telescopic end of the telescopic rod 15 is fixedly installed at the bottom of the mounting plate 14 .

[0026] The mounting plates 14 are both installed on the inner top walls of the first airbag 3 and the second airbag 6. The fixed end of the telescopic rod 15 is fixedly installed on the inner bottom wall of the first airbag 3. The fixed end of the telescopic rod 15 inside the second airbag 6 is fixedly installed on the inner bottom wall of the second airbag 6. The telescopic rod 15 can guide the mounting plate 14 so that the mounting plate 14 can move in the vertical direction.

[0027] The compression spring 13 is sleeved on the outside of the telescopic rod 15 , and the telescopic spring 16 is sleeved on the outside of the other telescopic rod 15 .

[0028] The telescopic spring 16 can prop up the first airbag 3 before being squeezed, and the second airbag 6 is in a compressed state in a normal state, which makes the second airbag 6 in a compressed state.

[0029] After the first airbag 3 is squeezed, the telescopic spring 16 can assist the first airbag 3 to reset; after the second airbag 6 is expanded, the compression spring 13 can compress the second airbag 6 and restore it to its original state, facilitating the inspection of the next drive axle housing 2.

[0030] See Figure 1-2 Two plywoods are fixedly mounted on the top of the bottom plate 1, and sponges are fixedly mounted on opposite sides of the two plywoods.

[0031] Installing sponge on the opposite side of the splint can play a role of buffering protection. When fixing the bridge housing, avoid direct hard contact between the splint and the bridge housing to prevent scratches or damage to the bridge housing surface.

[0032] On the other hand, the sponge has a certain elasticity, which can better fit the shape of the bridge housing and increase the stability of the fixation. It also helps to form a certain sealing assistance for the bridge housing during the detection process, preventing the detection gas from leaking from the fixed part and improving the accuracy of the detection.

[0033] See Figure 1-2 , the material of the mounting sleeve 5 is rubber.

[0034] The rubber is elastic and can fit tightly on the parts in contact with it, and can form a good seal at the connection portion between the mounting sleeve 5 and other parts to prevent leakage of the test gas and ensure the accuracy of the test results.

[0035] See Figure 3 , an anti-collision layer is installed at the bottom of the fixed block 7.

[0036] The anti-collision layer not only protects the bridge housing, but also reduces the possibility of damage to the fixing block 7 due to collision. This helps to extend the service life of the detection device and reduce maintenance costs.

[0037] See Figure 3 , the prompter 9 and the switch 10 are electrically connected.

[0038] When it is detected that there is no problem with the sealing of the bridge housing, the switch 10 can quickly trigger the indicator 9 to send a signal. The electrical connection can realize fast signal transmission, ensuring that the staff is reminded at the first time whether there is any abnormality such as leakage in the bridge housing, so that timely measures can be taken to deal with it.

[0039] Working principle: Place the drive axle housing 2 between two plywood, and the two mounting sleeves 5 are respectively mounted on the outlets at both ends of the drive axle housing 2. The staff presses the first airbag 3 downward, and the gas inside the first airbag 3 enters the drive axle housing 2 through the air pipe 4 and the mounting sleeve 5, and then enters the inside of the second airbag 6 from another air pipe 4 and the mounting sleeve 5. If there is no air leakage in the drive axle housing 2, then when the gas inside the first airbag 3 is squeezed into the inside of the second airbag 6, the second airbag 6 can be fully expanded. The expansion of the second airbag 6 squeezes the fixed block 7, and the return spring 8 is compressed. The top of the fixed block 7 is pressed against the switch 10, and the indicator 9 makes a prompt sound, indicating that the sealing of the drive axle housing 2 is good.

[0040] If the air tightness of the drive axle housing 2 is not good, the gas squeezed out of the first airbag 3 will leak when passing through the drive axle housing 2, and the remaining gas will flow through the inside of the second airbag 6. When the second airbag 6 expands, it will not be squeezed to the switch 10. In this way, it can be detected that the air tightness of the drive axle housing 2 is not good. The above can conveniently and quickly detect the air tightness of the drive axle housing 2, and better meet the high-efficiency requirements of production.

[0041] The telescopic spring 16 can prop up the first airbag 3 before being squeezed, and the second airbag 6 is in a compressed state in a normal state, which makes the second airbag 6 in a compressed state.

[0042] After the first airbag 3 is squeezed, the telescopic spring 16 can assist the first airbag 3 to reset; after the second airbag 6 is expanded, the compression spring 13 can compress the second airbag 6 and restore it to its original state, facilitating the inspection of the next drive axle housing 2.

Claims

1. A drive axle housing sealing detection device, comprising a base plate (1), a drive axle housing (2), and an L-shaped plate (12), characterized in that: A first airbag (3) and a second airbag (6) are provided on the top of the base plate (1); an air tube (4) and a mounting sleeve (5) are fixedly mounted on the outer walls of the first airbag (3) and the second airbag (6); a telescopic spring (16) is fixedly mounted inside the first airbag (3); a compression spring (13) is fixedly mounted inside the second airbag (6); a reset spring (8) and a switch (10) are fixedly mounted on the inner top wall of the L-shaped plate (12); a fixing block (7) is fixedly mounted on the bottom of the reset spring (8); and a prompter (9) is fixedly mounted on the top of the L-shaped plate (12).

2. The drive axle housing sealing detection device according to claim 1, characterized in that: A plurality of guide rods (11) are fixedly mounted on the inner top wall of the L-shaped plate (12), and the telescopic ends of the guide rods (11) are fixedly mounted on the top of the fixed block (7).

3. The drive axle housing sealing detection device according to claim 2, characterized in that: A mounting plate (14) and a telescopic rod (15) are fixedly mounted inside the first airbag (3) and the second airbag (6), and the telescopic end of the telescopic rod (15) is fixedly mounted on the bottom of the mounting plate (14).

4. The drive axle housing sealing detection device according to claim 3, characterized in that: Two clamping plates are fixedly mounted on the top of the bottom plate (1), and sponges are fixedly mounted on opposite sides of the two clamping plates.

5. The drive axle housing sealing detection device according to claim 4, characterized in that: The material of the mounting sleeve (5) is rubber.

6. The drive axle housing sealing detection device according to claim 5, characterized in that: An anti-collision layer is installed at the bottom of the fixed block (7).

7. The drive axle housing sealing detection device according to claim 6, characterized in that: The prompter (9) is electrically connected to the switch (10).

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