Electrically driven rear axle soft connection simple operation device

Abstract

The utility model discloses a kind of electric drive rear axle soft connection simple operation device, it is characterized by: including translation mechanism, driving mechanism, combined workstation matched with electric drive rear axle and adjustable support mechanism;Translation mechanism and adjustable support mechanism are respectively screwed and fixed on the top of combined workstation;Driving mechanism is provided with on the top of translation mechanism, and soft connection is carried out with electric drive rear axle by polyurethane stick in driving mechanism. Since the operation detection device used in the utility model, through the form of soft connection, the generation of abnormal sound source of driving end linkage component in the operation process can be eliminated, the error of driving end coaxiality can also be offset, and the test demand of electric drive rear axle with different center distance and height can be met by translation mechanism and adjustable support mechanism. It is simple in structure, reasonable in design, convenient and fast in operation, strong in compatibility, and reduces the skill threshold of operator.

Description

Technical Field

[0001] This utility model relates to a simple operating device for a soft connection of an electric drive rear axle, belonging to the field of automotive parts assembly technology. Background Technology

[0002] As one of the four most important components of a car, the quality of the drive axle assembly greatly affects the overall vehicle's performance. Currently, many car drive axle assemblies have experienced problems such as abnormal noises, oil leaks, and overheating during use. To ensure the assembly quality of the drive axle assembly and prevent substandard products from entering the market, current manufacturing processes require a final inspection process: the axle assembly undergoes operational testing on a break-in machine after assembly.

[0003] CN 220829356 U, "A Parallel Shaft Electric Drive Rear Axle Break-in Equipment," discloses a parallel shaft electric drive rear axle break-in equipment. Its features include a rotary centering mechanism, a drive mechanism, a combined worktable cooperating with the parallel shaft electric drive rear axle, and a clamping mechanism. The clamping mechanism and the rotary centering mechanism are screwed and fixed above the combined worktable. A drive mechanism is located at the rear of the combined worktable, and is screwed and fixed to the front rotary centering mechanism. While this patent fulfills the requirements for electric drive rear axle break-in testing, its structure limits its effectiveness. The drive mechanism connects to the input shaft of the electric drive rear axle via a spline sleeve. Because the spline sleeve and the input shaft spline have a clearance fit, a "clunking" sound is easily generated during high-speed operation. This abnormal noise intensifies with increasing speed, increasing the difficulty of judgment. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a simple operating device with soft connection of electric drive rear axle. The device has a simple overall structure, strong compatibility, convenient and quick operation, and convenient adjustment function. By using soft connection, it eliminates the generation of abnormal noise sources in the drive end connection components during operation and lowers the skill threshold for operators.

[0005] The technical solution adopted in this utility model is: a simple operating device for a soft connection of an electrically driven rear axle, characterized in that:

[0006] It includes a translation mechanism, a drive mechanism, a combined worktable that works in conjunction with the electric drive rear axle, and an adjustable support mechanism;

[0007] The combined worktable includes a bed, on which a T-slot plate is provided, and a V-shaped support seat that cooperates with the electric drive rear axle is provided on the T-slot plate.

[0008] The adjustable support mechanism includes a support plate, a back nut is screwed onto the screw at the lower end of the support plate, and a support base is provided below the back nut. The screw at the lower end of the support plate is engaged with the internal thread of the support base.

[0009] The translation mechanism includes a mounting plate, a first sliding plate is provided above the mounting plate, limit seats are symmetrically arranged on the upper working surface of the first sliding plate, a second sliding plate is provided above the first sliding plate, a threaded base is provided on the upper working surface of the second sliding plate, the central threaded hole of the threaded base is engaged with a screw, the screw passes through the threaded base, one end of the screw is engaged with the inner hole of one limit seat, the other end of the screw passes through the inner hole of the other limit seat, and a handle is installed at the head of the screw;

[0010] The drive mechanism includes a motor base, a motor screwed onto the top of the motor base, and a polyurethane rod provided at the end of the motor shaft.

[0011] Furthermore: the mounting plate and the first sliding plate are connected by a first linear slide rail assembly, the upper slider of the first linear slide rail assembly is screwed to the first sliding plate, and the lower guide rail is screwed to the worktable surface of the mounting plate;

[0012] Furthermore: the first slide plate and the second slide plate are connected by a second linear slide rail assembly, the upper slider of the second linear slide rail assembly is screwed to the second slide plate, and the lower guide rail is screwed to the worktable surface of the first slide plate;

[0013] Furthermore: both ends of the first linear slide rail assembly and the second linear slide rail assembly are provided with stops;

[0014] Furthermore: the motor model is 1TL0003-0DB32-1AA4;

[0015] Furthermore, the combined workbench also includes a button box and an electrical control box. The button box is fixed to the side of the workbench surface of the bed, and the electrical control box is welded and fixed to the bottom of the workbench surface of the bed.

[0016] The advantages and positive effects of this utility model are as follows: The simplified operating device with a soft connection for the electric drive rear axle eliminates abnormal noise sources during operation of the drive-end connecting components through the soft connection, and also compensates for coaxiality errors at the drive end. Furthermore, the translation mechanism and adjustable support mechanism can meet the testing requirements of electric drive rear axles with different center distances and heights. Its structure is simple, its design is reasonable, its operation is convenient and quick, and its compatibility is strong, lowering the skill threshold for operators. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the combined workbench;

[0020] Figure 3 yes Figure 1 Schematic diagram of the adjustable support mechanism;

[0021] Figure 4 yes Figure 1 Schematic diagram of the translation mechanism;

[0022] Figure 5 yes Figure 1 Schematic diagram of the drive mechanism.

[0023] The numbers in the diagram are explained as follows: 1 is the combined worktable, 2 is the electric drive rear axle, 3 is the adjustable support mechanism, 4 is the translation mechanism, 5 is the drive mechanism, 6 is the bed, 7 is the V-shaped support seat, 8 is the button box, 9 is the T-slot plate, 10 is the electrical control box, 11 is the support base, 12 is the back nut, 13 is the support plate, 14 is the mounting plate, 15 is the first slide plate, 16 is the stop block, 17 is the first linear slide rail assembly, 18 is the second slide plate, 19 is the second linear slide rail assembly, 20 is the limit seat, 21 is the threaded base, 22 is the handle, 23 is the screw, 24 is the polyurethane rod, 25 is the motor, and 26 is the motor base. Detailed Implementation

[0024] like Figures 1-5 As shown, this utility model discloses a simple operating device for a soft connection of an electric drive rear axle, which includes a translation mechanism 4, a drive mechanism 5, a combined worktable 1 that cooperates with the electric drive rear axle 2, and an adjustable support mechanism 3.

[0025] The combined workbench 1 includes a bed 6, on which a T-slot plate 9 is fixedly installed, and a V-shaped support seat 7 that cooperates with the electric drive rear axle 2 is installed on the T-slot plate 9; the V-shaped support seat 7 is connected to the T-slot plate 9 by T-bolts.

[0026] The adjustable support mechanism 3 includes a support plate 13, a back nut 12 is screwed onto the screw at the lower end of the support plate 13, and a support base 11 is provided below the back nut 12. The screw at the lower end of the support plate 13 is threaded into the inner hole of the support base 11 and can be locked by the back nut 12.

[0027] The translation mechanism 4 includes a mounting plate 14 fixed to the bed 6. A first sliding plate 15 is slidably arranged above the mounting plate 14. Limit seats 20 are symmetrically arranged on the upper working surface of the first sliding plate 15. A second sliding plate 18 is also slidably arranged above the first sliding plate 15. A threaded base 21 is arranged on the upper working surface of the second sliding plate 18. The central threaded hole of the threaded base 21 is threadedly engaged with the screw 23. The screw 23 passes through the threaded base 21. One end of the screw 23 is engaged with the inner hole of one limit seat 20. The other end of the screw 23 passes through the inner hole of the other limit seat 20. Both ends of the screw 23 are rotatably engaged with two sets of limit seats respectively. A handle 22 is installed at the head of the screw 23 for driving its rotation.

[0028] The drive mechanism 5 includes a motor base 26, with a motor 25 screwed onto the motor base 26. A polyurethane rod 24 is provided at the shaft end of the motor 25. The polyurethane rod 24 has an inner hole, which is inserted into and fits with the input shaft on the main reducer, allowing the input shaft to rotate. The inner hole is interference-fitted with the input shaft. Because polyurethane is relatively soft, it can be easily inserted and removed. At the same time, the load is small during no-load testing, which can effectively meet the testing requirements.

[0029] Preferably, the mounting plate 14 and the first slide plate 15 are connected by a first linear slide rail assembly 17, wherein the upper slider of the first linear slide rail assembly 17 is screwed to the first slide plate 15, and the lower guide rail is screwed to the worktable surface of the mounting plate 14.

[0030] Preferably, the first slide plate 15 and the second slide plate 18 are connected by a second linear slide rail assembly 19, wherein the upper slider of the second linear slide rail assembly 19 is screwed to the second slide plate 18, and the lower guide rail is screwed to the worktable surface of the first slide plate 15.

[0031] Preferably, both ends of the first linear slide rail group 17 and the second linear slide rail group 19 are provided with stop blocks 16.

[0032] Preferably, the motor 25 is model 1TL0003-0DB32-1AA4.

[0033] Preferably, the combined workbench 1 further includes a button box 8 and an electrical control box 10. The button box 8 is fixed to the side of the workbench surface of the bed 6, and the electrical control box 10 is welded and fixed to the bottom of the workbench surface of the bed 6.

[0034] Preferred: In this solution, the component models are as follows: First linear guide rail group: HGH20CA2R460ZAⅡ; Second linear guide rail group: HGH20CA1R220ZAⅡ.

[0035] The following is a further explanation of this solution with reference to specific embodiments.

[0036] Example: This utility model discloses a simple operating device for a soft-connected electric drive rear axle, comprising a translation mechanism 4, a drive mechanism 5, a combined worktable 1 that cooperates with the electric drive rear axle 2, and an adjustable support mechanism 3.

[0037] The combined workbench 1 includes a bed 6, a V-shaped support base 7, a button box 8, a T-shaped slot plate 9, and an electrical control box 10. The bed 6 is formed by welding steel plates and profiles. The workbench surface of the bed 6 has threaded holes for adjustable support mechanism 3 and translation mechanism 4. The T-shaped slot plate 9 is screwed and fixed to the workbench surface of the bed 6. V-shaped support bases 7 are symmetrically placed on both sides of the workbench surface of the T-shaped slot plate 9. The V-shaped support bases 7 are fixed to the workbench surface of the T-shaped slot plate 9 by T-shaped slot bolts. The button box 8 is fixed to the side of the workbench surface of the bed 6. The electrical control box 10 is welded and fixed to the bottom of the workbench surface of the bed 6.

[0038] The adjustable support mechanism 3 includes a support base 11, a back nut 12, and a support plate 13. The support base 11 is screwed and fixed to the worktable of the bed 6. Its lower bottom plate has an elongated hole, which can be moved back and forth for adjustment. The support plate 13 is set above the support base 11. The screw at its lower end cooperates with the internal screw of the support base 11. The support height of the support plate 13 can be adjusted by rotating the screw of the support plate 13. The back nut 12 cooperates with the screw at the lower end of the support plate 13. After the height of the support plate 13 is adjusted, it is locked by the back nut 12 to prevent the support plate 13 from loosening during use.

[0039] The translation mechanism 4 includes a mounting plate 14, a first sliding plate 15, a stop block 16, a first linear slide rail assembly 17, a second sliding plate 18, a second linear slide rail assembly 19, a limiting seat 20, a threaded base 21, a handle 22, and a screw 23. The mounting plate 14 is screwed and fixed to the worktable surface of the bed 6. The guide rail of the first linear slide rail assembly 17 is screwed and fixed to the worktable surface of the mounting plate 14. The slider on the first linear slide rail assembly 17 is screwed and fixed to the lower end of the first sliding plate 15. Limiting seats 20 are symmetrically arranged on the working surface of the first sliding plate 15. The guide rail of the second linear slide rail assembly 19 is screwed and fixed to the worktable surface of the first sliding plate 15. The slider on the second linear slide rail assembly 19 is screwed and fixed to the second sliding plate 18. The lower end of the plate 18 is screwed in. A threaded base 21 is provided on the upper working surface of the second slide plate 18. The central threaded hole of the threaded base 21 is engaged with the screw 23. The screw 23 passes through the threaded base 21. One end of the screw 23 is engaged with the inner hole of the limit seat 20 on one side. The other end of the screw 23 passes through the inner hole of the limit seat 20 on the other side. The handle 22 is installed on the head of the screw 23. The drive mechanism 5 at the upper end of the second slide plate 18 can be moved by rotating the handle 22 to meet the testing requirements of electrically driven rear axles with different center distances. The stop blocks 16 are symmetrically arranged at both ends of the first linear slide rail group 17 and the second linear slide rail group 19 to limit the sliders on the slide rail group.

[0040] The drive mechanism 5 includes a polyurethane rod 24, a motor 25, and a motor base 26. The motor base 26 is screwed and fixed to the working surface of the second slide plate 18 in the translation mechanism 4. The motor 25 is screwed to the upper end of the motor base 26. The shaft of the motor 25 is fixed in conjunction with the inner hole of one end of the polyurethane rod 24. The inner hole of the other end of the polyurethane rod 24 is fixed in conjunction with the input shaft of the electric drive rear axle 2. Through this soft connection of the polyurethane rod 24, the generation of abnormal noise sources in the drive end connection components during operation can be eliminated, and some of the drive coaxiality error can also be offset.

[0041] The specific operation process of this utility model structure is as follows:

[0042] For initial operation, the axle tubes on both sides of the electric drive rear axle 2 need to be manually hoisted into the V-shaped support seat 7, ensuring that the center height of the axle tubes on both sides is consistent. Then, the main reducer of the electric drive rear axle 3 is manually rotated so that the side of the motor flange on the main reducer contacts the upper end face of the support plate 13 on the adjustable support mechanism 3. The input shaft axis on the main reducer is aligned vertically with the polyurethane rod 24 axis in the drive mechanism 5 by manually shifting the position of the adjustable support mechanism 3 and rotating the support height of the support plate 13 in the adjustable support mechanism 3. After adjustment, the support base 11 in the adjustable support mechanism 3 is locked with bolts, and the back nut 12 is tightened. Then, the handle 22 in the translation mechanism 4 is manually rotated to drive the drive mechanism 5 at the upper end of the second slide plate 18 to move back and forth, ensuring that the input shaft on the main reducer is coaxial with the polyurethane rod 24 in the drive mechanism 5. After adjustment, the drive mechanism 5 is manually pushed forward along the first linear slide rail group 17 so that the input shaft of the electric drive rear axle 2 is inserted into the inner hole of the polyurethane rod 24 and fixed. Then press the start button on the button box 8, and the motor 25 will start to perform forward and reverse rotation tests according to the program settings. After the test is completed, the motor stops rotating, and the drive mechanism 5 is manually pushed backward to separate the polyurethane rod 24 from the input shaft of the electric drive rear axle 2. Then the electric drive rear axle 2 is manually lifted and removed to complete one operation test.

Claims

1. A simple operating device with a flexible connection for an electrically driven rear axle, characterized in that: It includes a translation mechanism (4), a drive mechanism (5), a combined worktable (1) that works in conjunction with the electric drive rear axle (2), and an adjustable support mechanism (3). The combined worktable (1) includes a bed (6), a T-slot plate (9) is provided on the bed (6), and a V-shaped support seat (7) that cooperates with the electric drive rear axle (2) is provided on the T-slot plate (9). The adjustable support mechanism (3) includes a support plate (13), a back nut (12) is screwed onto the screw at the lower end of the support plate (13), and a support base (11) is provided below the back nut (12). The screw at the lower end of the support plate (13) is engaged with the internal thread of the support base (11). The translation mechanism (4) includes a mounting plate (14), a first sliding plate (15) is provided above the mounting plate (14), a limit seat (20) is symmetrically provided on the upper working surface of the first sliding plate (15), a second sliding plate (18) is provided above the first sliding plate (15), a threaded base (21) is provided on the upper working surface of the second sliding plate (18), the central threaded hole of the threaded base (21) is engaged with the screw (23), the screw (23) passes through the threaded base (21), one end of the screw (23) is engaged with the inner hole of the limit seat (20) on one side, the other end of the screw (23) passes through the inner hole of the limit seat (20) on the other side, and a handle (22) is installed at the head of the screw (23). The drive mechanism (5) includes a motor base (26), a motor (25) is screwed on the motor base (26), and a polyurethane rod (24) is provided on the shaft end of the motor (25).

2. The electrically driven rear axle soft connection easy running device according to claim 1, characterized in that: The mounting plate (14) and the first slide plate (15) are connected by a first linear slide rail assembly (17). The upper slider of the first linear slide rail assembly (17) is screwed to the first slide plate (15), and the lower guide rail is screwed to the worktable surface of the mounting plate (14).

3. The electrically driven rear axle soft connection easy running device according to claim 1, characterized in that: The first slide (15) and the second slide (18) are connected by a second linear slide rail assembly (19). The upper slider of the second linear slide rail assembly (19) is screwed to the second slide (18), and the lower guide rail is screwed to the worktable surface of the first slide (15).

4. The electrically driven rear axle soft coupling simple operation device according to claim 1, characterized in that: The motor (25) is model 1TL0003-0DB32-1AA4.

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