Automobile rear axle durability test detection device

Abstract

The utility model is suitable for automobile rear axle detection technical field discloses a kind of automobile rear axle endurance test detection device, bearing platform top both sides are slidably installed with sliding plate, every sliding plate top is detachably installed with connecting plate by bolt, and the side edge four corners of connecting plate are all penetrated and are screwed with bolt, and its bolt can be screwed and screwed to sliding plate inside, realize the dismounting treatment of sliding plate and connecting plate, and the top of connecting plate is fixedly installed with first limit frame, and the side edge of first limit frame is rotatably installed with second limit frame, and the bottom middle end of bearing platform is fixedly installed with hollow frame, and hollow frame inside is provided with bidirectional synchronous adjusting mechanism, and bidirectional synchronous adjusting mechanism and sliding plate bottom transmission are connected. The utility model technical scheme can be resistant to limit processing to different length and different width model automobile rear axle, improve the fixed adjustment applicability of automobile rear axle, and then improve the stability when automobile rear axle is pressed and the endurance is detected.

Description

Technical Field

[0001] This utility model applies to the field of automotive rear axle testing technology, and particularly relates to an automotive rear axle durability testing device. Background Technology

[0002] Currently, the rear axle of a car refers to the axle at the rear of the vehicle. In front-axle driven vehicles, the rear axle is merely a follow-up axle, serving only a load-bearing function. After manufacturing, to ensure its quality during actual use, it is subjected to pressure testing to examine the strength of its overall support arm.

[0003] However, current strength testing of automotive rear axles requires fixing the axle to a testing platform. These relatively simple testing platforms cannot be quickly adjusted to accommodate different sizes and models of rear axles. Furthermore, due to the large size of the rear axle, the platform's position cannot be adjusted during installation, resulting in the platform being positioned below the testing block. This not only hinders the operator's ability to move and disassemble the axle but also poses a significant risk of injury if the testing block shifts due to improper operation. Therefore, we propose a durability testing device for automotive rear axles. Utility Model Content

[0004] The main purpose of this invention is to provide a vehicle rear axle durability testing device, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A vehicle rear axle durability testing device includes a mounting base, a support frame fixedly mounted on the middle of the side of the mounting base, hydraulic cylinders vertically fixedly mounted on both sides of the top of the support frame, and a pressure block detachably mounted on the bottom of the piston rod of the hydraulic cylinders; a support column fixedly mounted on the middle of the top of the mounting base, and the number of support columns is several groups; a bearing platform is fixedly mounted between the tops of the support columns, and the support columns are located on both sides of the bottom of the bearing platform.

[0007] Sliding plates are slidably installed on both sides of the top of the support platform. A connecting plate is detachably installed on the top of each sliding plate by bolts. Bolts are screwed through the four corners of the side of the connecting plate. The bolts can be screwed into the sliding plate to realize the disassembly and assembly of the sliding plate and the connecting plate. A first limiting frame is fixedly installed on the top of each connecting plate. A second limiting frame is rotatably installed on the side of the first limiting frame.

[0008] A hollow frame is fixedly installed at the bottom center of the support platform. A bidirectional synchronous adjustment mechanism is provided inside the hollow frame, and the bidirectional synchronous adjustment mechanism is connected to the bottom of the sliding plate via a transmission.

[0009] By adopting the above technical solution, through the bidirectional synchronous adjustment mechanism connecting the sliding plate and the limiting frame, and through the snap-fit ​​fixing treatment of the first and second limiting frames, the rear axles of different lengths and widths can be subjected to abutment and limiting treatment, thereby improving the applicability of fixing and adjusting the rear axles of automobiles, and thus improving the stability when performing durability testing by pressing the rear axles of automobiles.

[0010] As an optional solution to the technical solution of this application, the bidirectional synchronous adjustment mechanism includes a bidirectional lead screw. The bidirectional lead screw is rotatably installed inside the hollow frame via bearings. Both sides of the bidirectional lead screw are threadedly connected to transmission sleeves. The inner side of the transmission sleeve is provided with a thread that matches the outer side of the bidirectional lead screw. A connecting rod is vertically fixedly installed on the top of the outer side of each transmission sleeve, and the top of the connecting rod is fixedly connected to the bottom of the sliding plate. A limiting groove is horizontally opened through the middle of the bearing platform, and the top of the connecting rod is slidably inserted into the limiting groove. A servo motor is fixedly installed on the outer side of the hollow frame, and the side of the servo motor drive shaft is fixedly connected to the top of the outer side of the bidirectional lead screw via a coupling.

[0011] By adopting the above technical solution, the rotational transmission of the transmission sleeve by the bidirectional lead screw and the connection transmission of the transmission sleeve and sliding plate by the connecting rod can drive the two sets of sliding plates and their top limiting frame to move horizontally in sync, thereby enabling the locking and fixing of automobile rear axles of different lengths.

[0012] As an optional solution to the technical solution of this application, an adjusting bolt is vertically screwed to the top center of the second limiting frame via a thread. A clamping arc plate is rotatably installed at the bottom of the adjusting bolt via a bearing. A fastening bolt is slidably inserted through the top side of the second limiting frame, and the bottom of the fastening bolt is screwed into the inside of the first limiting frame via a thread. A corresponding screw hole is opened inside the side of the first limiting frame, so that the bottom of the fastening bolt can be screwed into its interior to connect and fasten the first limiting frame and the second limiting frame.

[0013] By adopting the above technical solution, the vertical position of the abutting arc plate can be adjusted by adjusting the bolts, while the movement of the outer wall of the rear axle of the vehicle can be limited.

[0014] As an optional solution to the technical solution of this application, a guide plate is fixedly installed on the side of the support platform at an angle, a guide slider is fixedly installed on the bottom side of the sliding plate, a guide groove is opened at the middle of the top of the sliding plate, and the guide slider is slidably inserted into the guide groove. A movable groove is opened at the top of the guide plate, and the number of movable grooves is several sets.

[0015] By adopting the above technical solution, the connecting plate and the rear axle of the car placed on its surface can be removed from the bottom of the support frame by the structural action of the guide slide groove on the movable groove and the guiding sliding action of the guide slider, which makes it convenient for the operator to transfer and replace the car rear axle components after the inspection is completed.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present application discloses a vehicle rear axle durability testing device. A hollow frame is installed on the top of a mounting base, and a bidirectional lead screw is installed inside the hollow frame. When the lead screw rotates inside the hollow frame under the operation of a servo motor, a transmission sleeve fitted on its surface can move synchronously or relative to each other inside the hollow frame. This drives a sliding plate and its top first and second limiting frames to move horizontally on a support platform. The horizontal distance between the two sets of limiting frames can be adjusted. Then, a clamping arc plate is installed inside the first limiting frame using adjusting bolts. The vertical position of the clamping arc plate can be adjusted to perform clamping and limiting treatment on vehicle rear axles of different lengths and widths, improving the applicability of fixing and adjusting the vehicle rear axle, and thus improving the stability during durability testing of the vehicle rear axle under pressure.

[0018] 2. The present application provides a vehicle rear axle durability testing device, which, by providing a guide slider at the bottom of the connecting plate and providing a guide groove and a movable groove at the top of the sliding plate and the top of the guide plate respectively, allows the connecting plate to be pushed when the vehicle rear axle to be tested needs to be disassembled and replaced. This causes the guide slider to move from the inside of the guide groove to the movable groove. Combined with the guiding sliding action of the movable groove on the guide slider, the connecting plate and the vehicle rear axle placed on its surface can be removed from the bottom of the support frame, making it convenient for the operator to transfer and replace the tested vehicle rear axle components. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a vehicle rear axle durability testing device according to the present invention;

[0020] Figure 2 This is a side view sectional view of the first and second limiting frames of the automobile rear axle durability testing device according to the present invention.

[0021] Figure 3 This is a side view sectional view of the support platform of the automobile rear axle durability testing device of this utility model.

[0022] Reference numerals: 1. Mounting base; 11. Support frame; 12. Hydraulic cylinder; 13. Support column; 14. Bearing platform; 2. Sliding plate; 21. Connecting plate; 22. First limiting frame; 23. Second limiting frame; 24. Hollow frame; 25. Two-way lead screw; 26. Transmission sleeve; 27. Connecting rod; 28. Servo motor; 29. ​​Limiting groove; 3. Adjusting bolt; 31. Abutting arc plate; 32. Fastening bolt; 4. Guide slider; 41. Guide groove; 42. Guide plate; 43. Movable groove. Detailed Implementation

[0023] like Figure 1-3 As shown, this utility model provides a technical solution: a vehicle rear axle durability testing device, wherein a support frame 11 is fixedly installed in the middle of the side of the mounting base 1, and hydraulic cylinders 12 are vertically fixedly installed on both sides of the top of the support frame 11, and pressure blocks are detachably installed at the bottom of the piston rod of the hydraulic cylinder 12. A support column 13 is fixedly installed in the middle of the top of the mounting base 1, and the number of support columns 13 is several groups. A bearing platform 14 is fixedly installed between the tops of the support columns 13, and the support columns 13 are located on both sides of the bottom of the bearing platform 14.

[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, sliding plates 2 are slidably installed on both sides of the top of the support platform 14. A connecting plate 21 is detachably installed on the top of each sliding plate 2 by bolts. Bolts are screwed through the four corners of the side of the connecting plate 21. The bolts can be screwed into the sliding plate 2, so as to realize the disassembly and assembly of the sliding plate 2 and the connecting plate 21. A first limiting frame 22 is fixedly installed on the top of the connecting plate 21. A second limiting frame 23 is rotatably installed on the side of the first limiting frame 22.

[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, a hollow frame 24 is fixedly installed at the bottom center of the support platform 14. A bidirectional synchronous adjustment mechanism is provided inside the hollow frame 24. The bidirectional synchronous adjustment mechanism includes a bidirectional lead screw 25. The bidirectional lead screw 25 is rotatably installed inside the hollow frame 24 through bearings. Both sides of the bidirectional lead screw 25 are threadedly connected to transmission sleeves 26. The inner side of the transmission sleeves 26 is provided with threads that are compatible with the outer side of the bidirectional lead screw 25. A connecting rod 27 is vertically fixedly installed on the top of the outer side of each transmission sleeve 26. The top of the connecting rod 27 is fixedly connected to the bottom of the sliding plate 2. A limiting groove 29 is opened horizontally through the middle of the support platform 14. The top of the connecting rod 27 is slidably inserted into the limiting groove 29. A servo motor 28 is fixedly installed on the outer side of the hollow frame 24. The side of the transmission shaft of the servo motor 28 is fixedly connected to the top of the outer side of the bidirectional lead screw 25 through a coupling.

[0026] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, an adjusting bolt 3 is vertically screwed into the top center of the second limiting frame 23 via a thread. A clamping arc plate 31 is rotatably mounted on the bottom of the adjusting bolt 3 via a bearing. A fastening bolt 32 is slidably inserted through the top side of the second limiting frame 23, and the bottom of the fastening bolt 32 is screwed into the inside of the first limiting frame 22 via a thread. The inside of the side of the first limiting frame 22 has a corresponding screw hole, so that the bottom of the fastening bolt 32 can be screwed into its interior to connect and fasten the first limiting frame 22 and the second limiting frame 23.

[0027] In some technical solutions (through Figure 1 , Figure 2 and Figure 3 As shown, a guide plate 42 is fixedly installed on the side of the support platform 14 at an angle, and a guide slider 4 is fixedly installed on the bottom side of the sliding plate 2. A guide groove 41 is opened at the middle of the top of the sliding plate 2, and the guide slider 4 is slidably inserted into the guide groove 41. A movable groove 43 is opened at the top of the guide plate 42, and the number of movable grooves 43 is several sets.

[0028] During operation, based on the length of the rear axle of the vehicle to be inspected, the servo motor 28 is activated, causing the bidirectional lead screw 25 to rotate synchronously inside the hollow frame 24. Combined with the limiting sliding action of the limiting groove 29 on the connecting rod 27, the transmission sleeves 26 sleeved on both sides of the bidirectional lead screw 25 move synchronously. Adjusting the distance between the two sets of transmission sleeves 26 allows the sliding plate 2 to move horizontally synchronously on the surface of the support platform 14, ensuring that the distance between the two sets of first limiting frames 22 and second limiting frames 23 matches the length of the workpiece to be inspected. Then, the fastening bolts 32 are tightened to move them out of the first limiting frame 22, and the second limiting frame 23... After pulling the second limiting frame 23 to rotate and move it away from the top of the first limiting frame 22, place both ends of the rear axle inside the first limiting frame 22. Then, pull the second limiting frame 23 to cover the top of the rear axle. Tighten the fastening bolts 32 to secure the first and second limiting frames 22 and 23. Then, tighten the adjusting bolts 3 to move the abutting arc plate 31 vertically and fit it against the outer wall of the rear axle to be inspected, thus limiting the movement of the rear axle. Then, push the connecting plate 21 to move it back to the surface of the sliding plate 2, bringing the workpiece to be inspected into the support frame 11. Finally, use bolts to secure the sliding plate 2 and the connecting plate 2.

[0029] Connect and fix the connecting plate 21, then start the hydraulic cylinder 12 to make it rotate and drive the pressure block.

[0030] Synchronous vertical movement applies reciprocating pressure to the rear axle of the vehicle to enhance its compressive strength.

[0031] And use durability testing and treatment.

Claims

1. An automobile rear axle endurance test detection device, comprising a mounting base (1), a support frame (11) is fixedly installed in the middle of the side edge of the mounting base (1), and a hydraulic cylinder (12) is vertically fixedly installed on both sides of the top of the support frame (11), characterized in that: A support column (13) is fixedly installed at the top center of the mounting base (1), and a bearing platform (14) is fixedly installed between the tops of the support columns (13); The top two sides of the support platform (14) are slidably installed with sliding plates (2), and each sliding plate (2) is detachably installed with a connecting plate (21) by bolts. The top of the connecting plate (21) is fixedly installed with a first limiting frame (22), and a second limiting frame (23) is rotatably installed on the side of the first limiting frame (22). A hollow frame (24) is fixedly installed at the bottom center of the support platform (14). A bidirectional synchronous adjustment mechanism is provided inside the hollow frame (24), and the bidirectional synchronous adjustment mechanism is connected to the bottom of the sliding plate (2) via transmission.

2. The automotive rear axle durability testing device according to claim 1, characterized in that: The bidirectional synchronous adjustment mechanism includes a bidirectional lead screw (25). The bidirectional lead screw (25) is rotatably installed inside the hollow frame (24) via bearings. Both sides of the bidirectional lead screw (25) are connected to transmission sleeves (26) by threads. Each transmission sleeve (26) has a connecting rod (27) vertically fixedly installed on the top of its outer side, and the top of the connecting rod (27) is fixedly connected to the bottom of the sliding plate (2).

3. The automotive rear axle durability testing device according to claim 2, characterized in that: The support platform (14) has a transversely extending limit groove (29) in the middle, and the top of the connecting rod (27) is slidably inserted into the limit groove (29). A servo motor (28) is fixedly installed on the outside of the hollow frame (24), and the side of the transmission shaft of the servo motor (28) is fixedly connected to the top of the outer side of the double screw (25) through a coupling.

4. The automotive rear axle durability testing device according to claim 1, characterized in that: The second limiting frame (23) has an adjusting bolt (3) screwed vertically to the top center via a thread. The bottom of the adjusting bolt (3) is rotatably mounted with a clamping arc plate (31) via a bearing. The top side of the second limiting frame (23) is slidably inserted with a fastening bolt (32), and the bottom of the fastening bolt (32) is screwed into the first limiting frame (22) via a thread.

5. The automotive rear axle durability testing device according to claim 1, characterized in that: The support platform (14) is fixedly mounted with a guide plate (42) at an angle on its side, and the sliding plate (2) is fixedly mounted with a guide slider (4) on its bottom side.

6. The automotive rear axle durability testing device according to claim 5, characterized in that: The sliding plate (2) has a guide groove (41) at the top center, and the guide slider (4) is slidably inserted into the guide groove (41). The guide plate (42) has a movable groove (43) at the top, and the number of movable grooves (43) is several sets.

Images