Automobile gap bridge box sealing performance detection device

Abstract

The utility model relates to the technical field of automobile gap bridge box sealing performance detection, in particular to an automobile gap bridge box sealing performance detection device, which improves the sealing performance detection convenience of a gap bridge box and reduces the maintenance complexity. Comprising a base and a positioning table, the positioning table is mounted at the top end of the base, and a groove matched with the bottom of an automobile bridge box in shape is formed in the top end of the positioning table; the box body is installed on the outer side wall of the base, the top end of the box body is communicated with the groove of the positioning table, the pressure gauge is arranged on the box body in a communicated mode, the booster pump is installed on the outer side wall of the base, and the output end of the booster pump is communicated with the box body; the sealing device is arranged on the base and used for sealing a working hole in the top of the automobile gap bridge box, and the sealing device is used for pressing and fixing the automobile gap bridge box.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive bridge box sealing test, and in particular to an automotive bridge box sealing test device. Background Technology

[0002] The transfer case, also known as the automotive transmission case, middle axle, or rear axle transmission case, is a crucial component of the automotive transmission system. If the transfer case is not properly sealed, external dust, moisture, mud, and other impurities will enter the case and mix with the lubricating oil to form dirt, accelerating the wear of moving parts and reducing transmission efficiency. Therefore, it is necessary to test its sealing performance.

[0003] Currently, among existing testing equipment, such as the patent with authorization announcement number CN217605206U, this utility model provides a quality inspector for a bridge box, which relates to the field of bridge boxes. It includes a testing pool with a cavity and a connecting frame. The connecting frame of the testing pool is provided with a telescopic rod, a movable plate provided at the telescopic rod, and a rotating shaft mounted on the movable plate. Above the rotating shaft, there is a placement plate and a fastening assembly mounted on the placement plate, as well as a box cover placed between the placement plate and the fastening assembly.

[0004] However, during the use of the equipment, it was found that by detecting whether there were water ingress points on the outer wall of the cover, the equipment increased the likelihood of water erosion of the vehicle's bridge box, increased the complexity of drying and maintaining the bridge box, and reduced the convenience of use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a vehicle bridge box sealing test device that improves the convenience of bridge box sealing test and reduces the complexity of maintenance.

[0006] This utility model discloses a sealing performance testing device for an automotive bridge gearbox, comprising a base and a positioning platform. The positioning platform is mounted on the top of the base, and a groove matching the shape of the bottom of the automotive bridge gearbox is provided on the top of the positioning platform. It also includes a sealing device, a housing, a pressure gauge, and a booster pump. The housing is mounted on the outer wall of the base, and its top end communicates with the groove of the positioning platform. The pressure gauge is connected to the housing. The booster pump is mounted on the outer wall of the base, and its output end communicates with the housing. The sealing device is mounted on the base and is used to seal the working hole on the top of the automotive bridge gearbox, and also to press and fix the automotive bridge gearbox in place. The bridge gearbox is placed in the groove of the positioning platform. The working hole on the top of the bridge box is then sealed using a sealing device. Simultaneously, the sealing device presses the bridge box downwards to fix it in place. At this point, the bottom of the bridge box is tightly sealed against the groove of the positioning platform. Then, a booster pump pressurizes the box, and the pressure enters the bridge box through the groove of the positioning platform. The pressure inside the box is maintained for a period of time, and the pressure inside the box is monitored using a pressure gauge during this process. If there is no pressure change, it indicates that the bridge box is not leaking; if the pressure decreases, it indicates that the bridge box is leaking. This process improves the convenience of testing the sealing performance of the bridge box and reduces the complexity of maintenance.

[0007] Preferably, the sealing device includes a pressing device, a driving device, a bracket, an internal threaded assembly, a stud, a sealing plug, and multiple sets of guide posts. The bracket is mounted on the top of the base, the internal threaded assembly is rotatably mounted on the bracket, the upper part of the stud is screwed onto the internal threaded assembly, and the bottom end of the stud is fixedly connected to the top of the sealing plug. Multiple sets of guide posts are slidably mounted on the bracket, and the bottom ends of multiple sets of guide posts are connected to the top of the sealing plug. The bracket is equipped with a driving device that provides power for the rotation of the internal threaded assembly. When the bridge box is placed on the groove of the positioning platform, the driving device drives the internal threaded assembly to rotate. After the internal threaded assembly rotates, it drives the stud to move downward, thereby causing the stud to push the sealing plug downward to block the working hole at the top of the bridge box. At the same time, the pressing device presses the top of the bridge box downward, thereby fixing the position of the bridge box and sealing the bottom of the bridge box with the positioning platform, thus improving the convenience of testing the sealing performance inside the bridge box.

[0008] Preferably, the driving device includes a base, a worm, a worm wheel, and a motor. The base is mounted on the outer wall of the bracket, the worm is rotatably mounted on the base, the worm wheel is disposed on the outer wall of the internal thread assembly, and the worm wheel meshes with the worm. The motor is mounted on the outer wall of the base, and the output end of the motor is connected to the worm. The motor drives the worm to rotate, which in turn drives the internal thread assembly to rotate through meshing with the worm wheel. This causes the internal thread assembly to drive the stud to move up and down, improving the convenience of sealing the working hole at the top of the bridge box and enhancing the stability and reliability of the sealing.

[0009] Preferably, the pressing device includes a cylinder and a pressing plate. The cylinder is mounted on the outer wall of the bracket, and the pressing plate is disposed on the moving end of the cylinder. The pressing plate is moved downward by the cylinder, so that the pressing plate presses and fixes the top of the bridge box.

[0010] Preferably, it also includes a valve, which is connected to the housing; after the sealing test of the bridge box is completed, the valve is opened to improve the convenience of pressure release in the housing and the bridge box.

[0011] Preferably, it also includes a sealing ring, which is disposed on the inner side wall of the groove of the positioning platform; by setting the sealing ring, the sealing effect between the groove of the positioning platform and the bottom of the bridge box is improved, thereby improving the accuracy of the sealing test of the bridge box.

[0012] Preferably, an electromagnet is provided inside the pressing plate; when the cylinder drives the pressing plate to move upward, the electromagnet attracts and moves the bridge box upward, improving the convenience of separating the bridge box from the positioning platform.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The bridge box is placed on the groove of the positioning platform, and then the working hole on the top of the bridge box is sealed by the sealing device. At the same time, the sealing device presses the bridge box down to fix it. At this time, the bottom of the bridge box and the groove of the positioning platform are tightly sealed. Then, the box is pressurized by the booster pump. The pressure enters the bridge box through the groove of the positioning platform. By maintaining the pressure in the box and the bridge box for a period of time, the pressure in the box is monitored by the pressure gauge during the pressure holding process. If there is no pressure change, it means that the bridge box is not leaking. If the pressure drops, it means that the bridge box is leaking. This improves the convenience of bridge box sealing detection and reduces the complexity of maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a partial isometric structural diagram of the connection between the internal threaded fitting and the stud, etc.

[0016] Figure 3 This is an isometric structural diagram of the connection between the cylinder and the pressing plate, etc.

[0017] Figure 4 This is an isometric structural diagram of the connection between the base and the positioning platform, etc.

[0018] Figure 5 This is a partial isometric structural diagram showing the connection between the positioning platform and the sealing ring, etc.

[0019] The following are labels in the attached diagram: 1. Base; 2. Positioning platform; 3. Housing; 4. Pressure gauge; 5. Booster pump; 6. Bracket; 7. Internal threaded fitting; 8. Stud; 9. Sealing plug; 10. Guide post; 11. Base; 12. Worm gear; 13. Worm wheel; 14. Motor; 15. Cylinder; 16. Pressing plate; 17. Valve; 18. Sealing ring. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the automotive bridge box sealing test device of this utility model includes a base 1 and a positioning platform 2. The positioning platform 2 is installed on the top of the base 1, and the top of the positioning platform 2 is provided with a groove that matches the shape of the bottom of the automotive bridge box. It also includes a sealing device, a box body 3, a pressure gauge 4, and a booster pump 5. The box body 3 is installed on the outer wall of the base 1, and the top of the box body 3 communicates with the groove of the positioning platform 2. The pressure gauge 4 is connected to the box body 3. The booster pump 5 is installed on the outer wall of the base 1, and the output end of the booster pump 5 communicates with the box body 3. The sealing device is installed on the base 1. The sealing device is used to seal the working hole at the top of the automotive bridge box and to press and fix the automotive bridge box.

[0023] like Figure 2 As shown, the sealing device includes a pressing device, a driving device, a bracket 6, an internal threaded assembly 7, a stud 8, a sealing plug 9, and multiple sets of guide posts 10. The bracket 6 is installed on the top of the base 1. The internal threaded assembly 7 is rotatably installed on the bracket 6. The upper part of the stud 8 is screwed onto the internal threaded assembly 7. The bottom end of the stud 8 is fixedly connected to the top of the sealing plug 9. Multiple sets of guide posts 10 are all slidably installed on the bracket 6. The bottom ends of multiple sets of guide posts 10 are all connected to the top of the sealing plug 9. The bracket 6 is provided with a driving device, which provides power for the rotation of the internal threaded assembly 7.

[0024] In this embodiment, the bridge box is placed on the groove of the positioning platform 2. Then, the working hole on the top of the bridge box is sealed by the sealing device, and the sealing device presses the bridge box down to fix it. At this time, the bottom of the bridge box and the groove of the positioning platform 2 are tightly sealed. Then, the booster pump 5 pressurizes the box 3. The pressure enters the bridge box through the groove of the positioning platform 2. By maintaining the pressure in the box 3 and the bridge box for a period of time, the pressure in the box 3 is monitored by the pressure gauge 4 during the pressure holding process. If there is no pressure change, it means that the bridge box is not leaking. If the pressure drops, it means that the bridge box is leaking. This improves the convenience of bridge box sealing detection and reduces the complexity of maintenance.

[0025] Example 2

[0026] Based on Example 1, such as Figure 2 As shown, the automobile bridge box sealing test device of this utility model includes a drive device comprising a base 11, a worm 12, a worm wheel 13 and a motor 14. The base 11 is mounted on the outer wall of the bracket 6, the worm 12 is rotatably mounted on the base 11, the worm wheel 13 is disposed on the outer wall of the internal thread kit 7 and meshes with the worm 12, and the motor 14 is mounted on the outer wall of the base 11 and the output end of the motor 14 is connected to the worm 12.

[0027] like Figure 3 As shown, the pressing device includes a cylinder 15 and a pressing plate 16. The cylinder 15 is mounted on the outer wall of the bracket 6, and the pressing plate 16 is disposed on the moving end of the cylinder 15.

[0028] like Figure 3 As shown, it also includes valve 17, which is connected to the housing 3;

[0029] like Figure 3 As shown, it also includes a sealing ring 18, which is disposed on the inner side wall of the groove of the positioning table 2;

[0030] like Figure 3 As shown, an electromagnet is provided inside the pressing plate 16;

[0031] In this embodiment, after the bridge box is placed on the groove of the positioning platform 2, the internal threaded assembly 7 is rotated by the driving device. After the internal threaded assembly 7 rotates, it drives the stud 8 to move downward, thereby causing the stud 8 to push the sealing plug 9 downward to seal the working hole at the top of the bridge box. At the same time, the top of the bridge box is pressed downward by the pressing device, thereby fixing the position of the bridge box and sealing the bottom of the bridge box with the positioning platform 2, thus improving the convenience of testing the sealing performance inside the bridge box. The worm gear 12 is rotated by the motor 14, and the worm gear 12 drives the internal threaded assembly 7 to rotate by meshing with the worm wheel 13, thereby causing the internal threaded assembly 7 to drive the stud 8 to move up and down, improving the convenience of the sealing plug 9 in sealing the working hole at the top of the bridge box and improving the stability and reliability of the sealing.

[0032] This utility model discloses a vehicle undercarriage box sealing test device. During operation, the undercarriage box is placed on the groove of the positioning platform 2. Then, a sealing device seals the working hole at the top of the undercarriage box and presses it downwards to fix it in place. At this point, the bottom of the undercarriage box is tightly sealed to the groove of the positioning platform 2. Next, a booster pump 5 pressurizes the box body 3, and the pressure enters the undercarriage box through the groove of the positioning platform 2. The pressure in the box body 3 and inside the undercarriage box is maintained for a period of time. During this pressure-holding process, a pressure gauge 4 monitors the pressure inside the box body 3. If there is no pressure change, it indicates that the undercarriage box is leak-free; if the pressure decreases, it indicates that the undercarriage box is leaking.

[0033] The pressure gauge 4, booster pump 5, motor 14, and cylinder 15 of the automotive bridge box sealing test device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vehicle undercarriage box sealing test device, comprising a base (1) and a positioning platform (2), wherein the positioning platform (2) is mounted on the top of the base (1), and the top of the positioning platform (2) is provided with a groove matching the shape of the bottom of the vehicle undercarriage box; characterized in that, It also includes a sealing device, a housing (3), a pressure gauge (4), and a booster pump (5). The housing (3) is installed on the outer wall of the base (1). The top of the housing (3) is connected to the groove of the positioning platform (2). The pressure gauge (4) is connected to the housing (3). The booster pump (5) is installed on the outer wall of the base (1). The output end of the booster pump (5) is connected to the housing (3). The sealing device is installed on the base (1). The sealing device is used to seal the working hole on the top of the car bridge box and to press and fix the car bridge box.

2. The vehicle bridge box sealing test device as described in claim 1, characterized in that, The sealing device includes a pressing device, a driving device, a bracket (6), an internal threaded assembly (7), a stud (8), a sealing plug (9), and multiple sets of guide posts (10). The bracket (6) is installed on the top of the base (1). The internal threaded assembly (7) is rotatably installed on the bracket (6). The upper part of the stud (8) is screwed onto the internal threaded assembly (7). The bottom end of the stud (8) is fixedly connected to the top end of the sealing plug (9). Multiple sets of guide posts (10) are all slidably installed on the bracket (6). The bottom ends of multiple sets of guide posts (10) are all connected to the top end of the sealing plug (9). The bracket (6) is provided with a driving device, which provides power for the rotation of the internal threaded assembly (7).

3. The automotive bridge box sealing test device as described in claim 2, characterized in that, The drive device includes a base (11), a worm (12), a worm wheel (13), and a motor (14). The base (11) is mounted on the outer wall of the bracket (6). The worm (12) is rotatably mounted on the base (11). The worm wheel (13) is set on the outer wall of the internal thread kit (7). The worm wheel (13) meshes with the worm (12). The motor (14) is mounted on the outer wall of the base (11). The output end of the motor (14) is connected to the worm (12).

4. The vehicle axle box sealing test device as described in claim 2, characterized in that, The pressing device includes a cylinder (15) and a pressing plate (16). The cylinder (15) is mounted on the outer wall of the bracket (6), and the pressing plate (16) is located on the moving end of the cylinder (15).

5. The automotive bridge box sealing test device as described in claim 1, characterized in that, It also includes a valve (17), which is connected to the housing (3).

6. The vehicle bridge box sealing test device as described in claim 1, characterized in that, It also includes a sealing ring (18), which is set on the inner side wall of the groove of the positioning platform (2).

7. The automotive bridge box sealing test device as described in claim 4, characterized in that, An electromagnet is provided inside the pressing plate (16).

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