Strength detection device for differential mechanism

Abstract

The utility model relates to a strength detection device of a differential mechanism. The device comprises a supporting seat, a plurality of first springs are fixedly connected to the top of the supporting seat; the ends of the adjacent first springs are fixedly connected with a workbench. The top of the supporting seat is fixedly connected with a telescopic rod; the top of the supporting seat is fixedly connected with a connecting plate; the middle part of the telescopic rod is fixedly connected with a motor; the output end of the motor is fixedly connected with a sector gear; the middle part of the telescopic rod is slidably connected with a first connecting ring; a second connecting ring is fixedly connected between every two adjacent first connecting rings; the middle part of the second connecting ring is fixedly connected with a first ejector rod; after a motor is started, a sector gear and a second connecting ring are driven to be meshed, the second connecting ring drives a first ejector rod to do up-and-down reciprocating motion in the meshing process, and the first ejector rod continuously impacts a workbench in the moving process, so that the strength of the differential mechanism is detected by the device in a vibration environment; and the detection accuracy and reliability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of strength detection, in particular to a strength detection device for a differential. Background Art

[0002] The differential is a mechanism that allows the left and right drive wheels of a car to travel at different speeds. It is mainly composed of left and right half-axle gears, two planetary gears and a gear rack. The main function of the differential is to adjust the speed difference between the left and right wheels to ensure that the drive wheels on both sides perform pure rolling motion.

[0003] The method of differential strength testing mainly includes checking the key components inside the differential to ensure that it can withstand the various forces and moments generated during normal operation. The strength testing methods mainly include the following: finite element analysis, material mechanics testing, bench testing, and destructive testing.

[0004] The existing differential strength test is usually carried out under static conditions. However, in reality, the differential is usually in a vibrating environment when working, so the simulation conditions of the test are insufficient, which will reduce the reliability of the test results.

[0005] Therefore, in order to solve the above problems, a strength detection device for a differential is proposed. Utility Model Content

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the vibration environment cannot be simulated during the strength detection of the differential.

[0007] In order to solve the above technical problems, the utility model provides a strength detection device for a differential, comprising a support seat; a plurality of first springs are fixedly connected to the top of the support seat; a workbench is fixedly connected to the ends of adjacent first springs; a telescopic rod is fixedly connected to the top of the support seat; the telescopic rod and the workbench are in a fixed relationship; a connecting plate is fixedly connected to the top of the support seat; a motor is fixedly connected to the middle of the telescopic rod; a fan-shaped gear is fixedly connected to the output end of the motor; a first connecting ring is slidably connected to the middle of the telescopic rod; a second connecting ring is fixedly connected between adjacent first connecting rings; the second connecting ring and the first connecting ring are in meshing transmission; a first push rod is fixedly connected to the middle of the second connecting ring; a plurality of electric push rods are fixedly connected to the top of the workbench; the output end of the electric push rod is fixedly connected to a splint ; A plurality of columns are fixedly connected to the top of the workbench; a cross plate is fixedly connected to the end of the adjacent columns; a hydraulic cylinder is fixedly connected to the top of the cross plate; a connecting rod is fixedly connected to the output end of the hydraulic cylinder; the connecting rod passes through the cross plate; a pressure plate is fixedly connected to the end of the connecting rod; a control module is fixedly connected to the top of the workbench; after the motor is started, the fan gear and the second connecting ring are driven to engage, and the second connecting ring will drive the first push rod to make up and down reciprocating motions during the engagement process, and the first push rod will continuously collide with the workbench during the movement, so that the device can perform strength detection of the differential in a vibration environment, truly reflecting the vibration conditions that the differential is subjected to during actual use, so that the detection results can more accurately evaluate the strength and durability of the differential, and improve the accuracy and reliability of the device detection.

[0008] In one embodiment of the utility model, a plurality of suction cups are fixedly connected to the middle portion of the clamping plate; the suction cups are arranged in an array; by arranging the suction cups, the suction cups will contact the differential before the clamping plate, thereby reducing the direct contact between the clamping plate and the differential, and reducing the error in the detection result caused by the pressure of the clamping plate on the differential. At the same time, after being squeezed by the differential, the suction cups will adsorb on the surface of the differential, thereby increasing the contact area between the device and the differential, reducing the shaking of the differential during detection, and enhancing the fixing effect of the device.

[0009] In one embodiment of the utility model, a plurality of second springs are fixedly connected to the middle part of the splint; pressure rings are fixedly connected to the ends of adjacent second springs; the pressure rings and suction cups are arranged correspondingly; through the cooperation of the second springs and the pressure rings, the second springs will squeeze the pressure rings after contacting the differential, and then the pressure rings will apply a reaction force to the second springs and make the second springs squeeze the middle part of the suction cup, thereby accelerating the discharge of air in the suction cup, while also enhancing the air tightness inside the suction cup and enhancing the suction effect of the suction cup on the differential.

[0010] In one embodiment of the utility model, a plurality of fixing holes are provided in the middle of the clamping plate; a fixing ring is fixedly connected in the fixing hole; a second push rod is slidably connected in the fixing ring; a third spring is fixedly connected to the end of the second push rod; the third spring and the fixing ring are both fixedly connected; after the second push rod contacts the bottom of the groove of the differential, it will slide along the fixing ring and put the third spring in an extended state, and then the second push rod will squeeze the differential under the elastic force of the third spring, thereby increasing the contact area between the device and the differential, enhancing the fixing effect of the device on the differential, and further reducing the jitter of the differential during detection.

[0011] In one embodiment of the utility model, a rubber pad is fixedly connected to the end of the second push rod; the surface of the rubber pad is an arc-shaped structure; by providing the rubber pad, the rubber pad will first come into contact with the differential, thereby reducing the direct contact between the second push rod and the differential, reducing the damage to the differential caused by the impact of the second push rod, and also increasing the contact area between the device and the differential, increasing the friction force, and improving the stability of the differential during detection.

[0012] In one embodiment of the utility model, a plurality of elastic rods are fixedly connected to the top of the workbench; a fixing plate is fixedly connected to the top of the elastic rods; through the cooperation of the elastic rods and the fixing plate, the elastic rods will be squeezed and bent when the differential is placed, and after the elastic rods are bent, the fixing plate will be pressed against the surface of the differential, thereby increasing the contact area between the device and the differential and enhancing the fixing effect of the device on the differential during detection.

[0013] In one embodiment of the utility model, a pull rope is fixedly connected between adjacent elastic rods; the pull rope is located between the workbench and the pressure plate; by setting the pull rope, the pull rope will provide tension when the bending arc of the elastic rod is too large, reducing the damage caused by excessive deformation of the elastic rod and extending the service life of the device. At the same time, the pull rope also connects the elastic rods into a whole, improving the stability of the overall structure in supporting the differential.

[0014] In one embodiment of the utility model, a plurality of balance plates are hingedly connected to the middle part of the support seat; the balance plates are arc-shaped structures; by setting the balance plates, the device can be placed in a horizontal state by rotating the balance plates, thereby reducing the error of the detection result caused by the tilt of the device and improving the accuracy of the detection result.

[0015] The above technical solution of the utility model has the following advantages compared with the prior art:

[0016] 1. The utility model discloses a differential strength detection device. After the motor is started, it drives the sector gear and the second connecting ring to engage. During the engagement process, the second connecting ring drives the first push rod to perform up and down reciprocating motion. During the motion process, the first push rod continuously hits the workbench, thereby realizing the strength detection of the differential under a vibration environment, truly reflecting the vibration condition to which the differential is subjected during actual use, so that the detection result can more accurately evaluate the strength and durability of the differential, and improve the accuracy and reliability of the detection of the device.

[0017] 2. The differential strength detection device described in the utility model has a suction cup, which will contact the differential before the clamping plate, thereby reducing the direct contact between the clamping plate and the differential and reducing the error in the detection result caused by the pressure of the clamping plate on the differential. At the same time, the suction cup will adsorb on the surface of the differential after being squeezed by the differential, thereby increasing the contact area between the device and the differential, reducing the shaking of the differential during detection and enhancing the fixing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the second connecting ring in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the elastic rod in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fixing hole in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the medium pressure ring of the utility model.

[0024] Explanation of the reference numerals in the specification: 1. support seat; 102. first spring; 103. workbench; 104. telescopic rod; 105. connecting plate; 106. motor; 107. sector gear; 108. first connecting ring; 109. second connecting ring; 110. first push rod; 111. electric push rod; 112. clamping plate; 113. column; 114. cross plate; 115. hydraulic cylinder; 116. connecting rod; 117. pressure plate; 118. control module; 2. suction cup; 3. second spring; 32. pressure ring; 4. fixing hole; 42. fixing ring; 43. second push rod; 44. third spring; 5. rubber pad; 6. elastic rod; 62. fixing plate; 7. pull rope; 8. balance board. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Reference Figures 1 to 3As shown, a strength detection device for a differential of the utility model comprises a support seat 1; a plurality of first springs 102 are fixedly connected to the top of the support seat 1; a workbench 103 is fixedly connected to the ends of the adjacent first springs 102; a telescopic rod 104 is fixedly connected to the top of the support seat 1; the telescopic rod 104 and the workbench 103 are both in a fixed relationship; a connecting plate 105 is fixedly connected to the top of the support seat 1; a motor 106 is fixedly connected to the middle of the telescopic rod 104; a sector gear 107 is fixedly connected to the output end of the motor 106; a first connecting ring 108 is slidably connected to the middle of the telescopic rod 104; a second connecting ring 108 is fixedly connected between adjacent first connecting rings 108 Ring 109; the second connecting ring 109 and the first connecting ring 108 are meshing transmission; the middle part of the second connecting ring 109 is fixedly connected to a first push rod 110; the top of the workbench 103 is fixedly connected to a plurality of electric push rods 111; the output end of the electric push rod 111 is fixedly connected to a clamping plate 112; the top of the workbench 103 is fixedly connected to a plurality of columns 113; the ends of the adjacent columns 113 are fixedly connected to a cross plate 114; the top of the cross plate 114 is fixedly connected to a hydraulic cylinder 115; the output end of the hydraulic cylinder 115 is fixedly connected to a connecting rod 116; the connecting rod 116 is set through the cross plate 114; the end of the connecting rod 116 is fixedly connected to a pressing plate 117; the workbench 10 3 is fixedly connected with a control module 118; a slide groove is provided on the top of the workbench 103, and the differential is placed on the top of the workbench 103 and the device is started. After the device is started, the motor 106 will be energized and drive the fan gear 107 to rotate. When the fan gear 107 rotates, it will mesh with the second connecting ring 109 and make the second connecting ring 109 reciprocate up and down. When the second connecting ring 109 moves, the first push rod 110 will also move with the second connecting ring 109. During the movement, the first push rod 110 will continuously hit the bottom of the workbench 103 and apply a force to the workbench 103. After the workbench 103 is subjected to the force, it will move and make the first spring 10 2 stretching, the first spring 102 will release elastic potential energy after stretching and exert a reaction force on the workbench 103, that is, the workbench 103 will vibrate under the impact of the first push rod 110, and at the same time, the electric push rod 111 will drive the clamping plate 112 to approach the differential after being energized, and the clamping plate 112 can fix the differential when it comes into contact with the differential. Finally, the pressure of the hydraulic cylinder 115 is set by the control module 118 according to the demand. After the hydraulic cylinder 115 is started, it will drive the connecting rod 116 to approach the differential, and the connecting rod 116 will bring the pressure plate 117 to approach the differential together, until the pressure plate 117 comes into contact with the differential and squeezes the differential. After the detection is completed, the surface condition of the differential is observed;After the motor 106 is started, it drives the sector gear 107 and the second connecting ring 109 to mesh. During the meshing process, the second connecting ring 109 will drive the first push rod 110 to do up and down reciprocating motion. During the motion process, the first push rod 110 will continuously hit the workbench 103, so that the device can perform strength testing on the differential in a vibration environment, truly reflecting the vibration conditions of the differential during actual use, so that the test results can more accurately evaluate the strength and durability of the differential, and improve the accuracy and reliability of the device detection. ;

[0027] Reference Figure 3 and Figure 4 As shown, a plurality of suction cups 2 are fixedly connected to the middle of the clamping plate 112; the suction cups 2 are arranged in an array; before the clamping plate 112 contacts the differential, the suction cups 2 will first contact the differential, and during the contact process, the differential will squeeze the suction cups 2 and discharge the air in the suction cups 2, and under the action of atmospheric pressure, the suction cups 2 will adsorb the surface of the differential, thereby increasing the contact area between the device and the differential; by providing the suction cups 2, the suction cups 2 will contact the differential before the clamping plate 112, thereby reducing the direct contact between the clamping plate 112 and the differential, and reducing the error in the detection result caused by the pressure of the clamping plate 112 on the differential, and at the same time, after being squeezed by the differential, the suction cups 2 will adsorb the surface of the differential, thereby increasing the contact area between the device and the differential, reducing the shaking of the differential during detection, and enhancing the fixing effect of the device.

[0028] Reference Figure 4 and Figure 5 As shown, a plurality of second springs 3 are fixedly connected to the middle of the clamping plate 112; a pressure ring 32 is fixedly connected to the end of the adjacent second spring 3; the pressure ring 32 and the suction cup 2 are arranged correspondingly; after the suction cup 2 comes into contact with the differential, the clamping plate 112 will continue to approach the differential, and then the pressure ring 32 will come into contact with the differential, and the differential will apply pressure to the pressure ring 32 to drive the pressure ring 32 to move, and when the pressure ring 32 moves, the second spring 3 will be in a compressed state, and then the second spring 3 will release its elastic potential energy and A reaction force is applied to the pressure ring 32, and the pressure ring 32 will squeeze the middle part of the suction cup 2, thereby accelerating the discharge of air in the suction cup 2; through the cooperation of the second spring 3 and the pressure ring 32, the second spring 3 will squeeze the pressure ring 32 after coming into contact with the differential, and then the pressure ring 32 will apply a reaction force to the second spring 3 and make the second spring 3 squeeze the middle part of the suction cup 2, thereby accelerating the discharge of air in the suction cup 2, while also enhancing the air tightness inside the suction cup 2 and enhancing the adsorption effect of the suction cup 2 on the differential.

[0029] Reference Figure 4As shown, a plurality of fixing holes 4 are provided in the middle of the clamping plate 112; a fixing ring 42 is fixedly connected in the fixing hole 4; a second push rod 43 is slidably connected in the fixing ring 42; a third spring 44 is fixedly connected to the end of the second push rod 43; the third spring 44 and the fixing ring 42 are both fixedly connected; when the clamping plate 112 contacts the differential, the second push rod 43 will continue to penetrate into the groove of the differential until contact is made, and the second push rod 43 will slide along the fixing ring 42 under the extrusion of the differential and make the third spring 44 in an extended state, Then the third spring 44 will release its elastic potential energy and exert a reaction force on the second push rod 43, and the second push rod 43 will squeeze the surface of the differential to increase the contact area between the device and the differential; after the second push rod 43 comes into contact with the bottom of the groove of the differential, it will slide along the fixing ring 42 and put the third spring 44 in an extended state, and then the second push rod 43 will squeeze the differential under the elastic force of the third spring 44, increase the contact area between the device and the differential, enhance the fixing effect of the device on the differential, and further reduce the jitter of the differential during detection.

[0030] Reference Figure 4 As shown, a rubber pad 5 is fixedly connected to the end of the second push rod 43; the surface of the rubber pad 5 is an arc-shaped structure; the rubber pad 5 will contact the differential before the second push rod 43, because the rubber pad 5 is a flexible material, the rubber pad 5 will absorb the impact of the second push rod 43 contacting the differential, reduce the impact force of the second push rod 43 on the differential, and at the same time, the rubber pad 5 also increases the contact area between the device and the differential; by providing the rubber pad 5, the rubber pad 5 will contact the differential first, reduce the direct contact between the second push rod 43 and the differential, reduce the damage to the differential caused by the impact of the second push rod 43, and at the same time increase the contact area between the device and the differential, increase the friction, and improve the stability of the differential during detection.

[0031] Reference Figure 3 As shown, a plurality of elastic rods 6 are fixedly connected to the top of the workbench 103; a fixing plate 62 is fixedly connected to the top of the elastic rods 6; when the differential is placed on the top of the workbench 103, the differential will squeeze the elastic rods 6 and the fixing plate 62, and the elastic rods 6 will bend after being subjected to pressure, and the bending of the elastic rods 6 will change the orientation of the fixing plate 62 and make the fixing plate 62 press against the surface structure of the differential, thereby increasing the contact area between the device and the differential; through the cooperation of the elastic rods 6 and the fixing plate 62, the differential will squeeze the elastic rods 6 and bend them when placed, and the bending of the elastic rods 6 will make the fixing plate 62 press against the surface of the differential, thereby increasing the contact area between the device and the differential, thereby enhancing the fixing effect of the device on the differential during detection.

[0032] Reference Figure 3As shown, a pull rope 7 is fixedly connected between adjacent elastic rods 6; the pull rope 7 is located between the workbench 103 and the pressure plate 117; when the differential squeezes the elastic rod 6, the elastic rod 6 will bend, and when the bending arc is too large, the elastic rod 6 will be pulled by the pull rope 7, and the pulling force of the pull rope 7 will reduce the bending angle of the elastic rod 6; by setting the pull rope 7, the pull rope 7 will provide tension when the bending arc of the elastic rod 6 is too large, thereby reducing the damage of the elastic rod 6 caused by excessive deformation and extending the service life of the device. At the same time, the pull rope 7 also connects the elastic rod 6 as a whole, thereby improving the stability of the overall structure supporting the differential.

[0033] Reference Figure 1 As shown, a plurality of balance plates 8 are hingedly connected to the middle of the support base 1; the balance plates 8 are arc-shaped structures; before the detection work starts, the balance plates 8 can be rotated to adjust the height of the balance plates 8 at the bottom of the support base 1, thereby making the entire device in a horizontal state; by setting the balance plates 8, the device can be in a horizontal state by rotating the balance plates 8, thereby reducing the error of the detection result caused by the tilt of the device and improving the accuracy of the detection result.

[0034] Working principle: Place the differential on the top of the workbench 103 and start the device. After the device is started, the motor 106 will be energized and drive the sector gear 107 to rotate. When the sector gear 107 rotates, it will mesh with the second connecting ring 109 and make the second connecting ring 109 reciprocate up and down. When the second connecting ring 109 moves, the first push rod 110 will also move with the second connecting ring 109. During the movement, the first push rod 110 will continuously hit the bottom of the workbench 103 and apply a force to the workbench 103. After the force is applied, the workbench 103 will move and stretch the first spring 102. After the first spring 102 is stretched, the elastic potential energy will be released and the workbench 10 3, a reaction force is applied, that is, the workbench 103 will vibrate under the impact of the first push rod 110, and at the same time, the electric push rod 111 will drive the clamping plate 112 to approach the differential after being energized, and the clamping plate 112 can fix the differential when it comes into contact with the differential. Finally, the pressure of the hydraulic cylinder 115 is set by the control module 118 according to the demand. After the hydraulic cylinder 115 is started, it will drive the connecting rod 116 to approach the differential, and the connecting rod 116 will bring the pressure plate 117 to approach the differential together, until the pressure plate 117 comes into contact with the differential and squeezes the differential. After the detection is completed, the surface condition of the differential is observed; before the clamping plate 112 comes into contact with the differential, the suction cup 2 will first come into contact with the differential, and then the suction cup 2 will come into contact with the differential. During the contact process, the differential will squeeze the suction cup 2 and expel the air in the suction cup 2. Under the action of atmospheric pressure, the suction cup 2 will adsorb the surface of the differential to increase the contact area between the device and the differential. After the suction cup 2 comes into contact with the differential, the clamping plate 112 will continue to approach the differential, and then the pressure ring 32 will come into contact with the differential. The differential will apply pressure to the pressure ring 32 to drive the pressure ring 32 to move. When the pressure ring 32 moves, the second spring 3 will be in a compressed state. Then the second spring 3 will release its elastic potential energy and apply a reaction force to the pressure ring 32. The pressure ring 32 will squeeze the middle part of the suction cup 2 to accelerate the discharge of air in the suction cup 2. When the clamping plate 112 comes into contact with the differential, the second spring 3 will release its elastic potential energy and apply a reaction force to the pressure ring 32. The pressure ring 32 will squeeze the middle part of the suction cup 2 to accelerate the discharge of air in the suction cup 2. The push rod 43 will continue to penetrate into the groove of the differential until contact is made. The second push rod 43 will slide along the fixing ring 42 under the extrusion of the differential and make the third spring 44 in an extended state. Then the third spring 44 will release elastic potential energy and exert a reaction force on the second push rod 43. The second push rod 43 will squeeze the surface of the differential to increase the contact area between the device and the differential. The rubber pad 5 will come into contact with the differential before the second push rod 43 because the rubber pad 5 is made of flexible material. The rubber pad 5 will absorb the impact of the second push rod 43 coming into contact with the differential, reducing the impact force of the second push rod 43 on the differential. At the same time, the rubber pad 5 also increases the contact area between the device and the differential.When the differential is placed on the top of the workbench 103, the differential will squeeze the elastic rod 6 and the fixed plate 62. The elastic rod 6 will bend after being pressed. After the elastic rod 6 bends, the orientation of the fixed plate 62 will be changed and the fixed plate 62 will be pressed against the surface structure of the differential, increasing the contact area between the device and the differential. When the differential squeezes the elastic rod 6, the elastic rod 6 will bend. When the bending arc is too large, the elastic rod 6 will be pulled by the pull rope 7. The pulling force of the pull rope 7 will reduce the bending angle of the elastic rod 6. Before the detection work starts, the balance board 8 can be rotated to adjust the height of the balance board 8 at the bottom of the support seat 1, so that the entire device is in a horizontal state. ;

[0035] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A strength detection device for a differential, comprising a support seat (1), characterized in that: A plurality of first springs (102) are fixedly connected to the top of the support seat (1); the ends of adjacent first springs (102) are fixedly connected to a workbench (103); a telescopic rod (104) is fixedly connected to the top of the support seat (1); the telescopic rod (104) and the workbench (103) are both in a fixed connection relationship; a connecting plate (105) is fixedly connected to the top of the support seat (1); a motor (106) is fixedly connected to the middle of the telescopic rod (104); a fan-shaped gear (107) is fixedly connected to the output end of the motor (106); a first connecting ring (108) is slidably connected to the middle of the telescopic rod (104); a second connecting ring (109) is fixedly connected between adjacent first connecting rings (108); the second connecting ring (109) and the first connecting ring (10 8) is a meshing transmission; the middle part of the second connecting ring (109) is fixedly connected to a first push rod (110); the top of the workbench (103) is fixedly connected to a plurality of electric push rods (111); the output end of the electric push rod (111) is fixedly connected to a clamping plate (112); the top of the workbench (103) is fixedly connected to a plurality of columns (113); the ends of adjacent columns (113) are fixedly connected to a cross plate (114); the top of the cross plate (114) is fixedly connected to a hydraulic cylinder (115); the output end of the hydraulic cylinder (115) is fixedly connected to a connecting rod (116); the connecting rod (116) is arranged to pass through the cross plate (114); the end of the connecting rod (116) is fixedly connected to a pressure plate (117); the top of the workbench (103) is fixedly connected to a control module (118).

2. A differential strength detection device according to claim 1, characterized in that: A plurality of suction cups (2) are fixedly connected to the middle of the clamping plate (112); the suction cups (2) are arranged in an array.

3. A differential strength detection device according to claim 2, characterized in that: A plurality of second springs (3) are fixedly connected to the middle of the clamping plate (112); pressure rings (32) are fixedly connected to the ends of adjacent second springs (3); and the pressure rings (32) and the suction cups (2) are arranged correspondingly.

4. The strength detection device for a differential according to claim 3, characterized in that: A plurality of fixing holes (4) are provided in the middle of the clamping plate (112); a fixing ring (42) is fixedly connected in the fixing hole (4); a second push rod (43) is slidably connected in the fixing ring (42); a third spring (44) is fixedly connected to the end of the second push rod (43); the third spring (44) and the fixing ring (42) are both in a fixed connection relationship.

5. The strength detection device for a differential according to claim 4, characterized in that: A rubber pad (5) is fixedly connected to the end of the second push rod (43); the surface of the rubber pad (5) is an arc-shaped structure.

6. The strength detection device for a differential according to claim 5, characterized in that: A plurality of elastic rods (6) are fixedly connected to the top of the workbench (103); and a fixing plate (62) is fixedly connected to the top of the elastic rods (6).

7. The strength detection device for a differential according to claim 6, characterized in that: A pull rope (7) is fixedly connected between adjacent elastic rods (6); the pull rope (7) is located between the workbench (103) and the pressing plate (117).

8. The strength detection device for a differential according to claim 7, characterized in that: A plurality of balancing plates (8) are hingedly connected in the middle of the support seat (1); the balancing plates (8) are arc-shaped structures.

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