A dynamic detection device for automobile bush durability

Abstract

The application discloses a kind of dynamic detection equipment of automobile bushing endurance, the upper end of the test platform is connected with left and right swing components, the bushing fixing device is fixedly connected on the left and right swing components, the automobile bushing is fixedly connected in the bushing fixing device, the center of the automobile bushing is connected with connecting sleeve, the connecting sleeve is fixedly connected with connecting shaft in, the connecting shaft one end is connected with up and down swing components, the connecting shaft other end is fixedly connected with universal joint, the universal joint other end is fixedly connected with driving shaft, the driving shaft is sequentially connected with first driving motor after passing through two groups of mounting plate, transmission component is arranged between two groups of mounting plate, and the transmission component is respectively connected with driving shaft and left and right swing components transmission connection.The application aims at providing a kind of detection equipment which can carry out multidirectional swing test, can save a lot of test time length, with simple operation, time-saving and labor-saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile component detection equipment, in particular to a dynamic detection equipment for the durability of automobile bushings. BACKGROUND

[0002] The bushing is a supporting part used outside the mechanical part to achieve the sealing and wear protection, and refers to the ring sleeve for the cushioning effect. In the automobile industry, the bushing is widely used, such as the rubber bushing which is increasingly used in the automobile suspension system as an important component of the vehicle chassis parts to attenuate the vibration and impact caused by the high-speed driving of the automobile. The bushing is an important part of the automobile, and thus the detection of the bushing part is particularly important. The stress state of the automobile bushing on the automobile is multidirectional, and the general requirement for the durability of the automobile bushing is that the radial load and the axial swing angle meet the number of rotations or stretches. At present, the dynamic durability test device of the bushing on the market can only perform the fatigue test in one direction, and the durability test of the bushing in each direction needs to be performed respectively, so that the test period is long, time-consuming and laborious. SUMMARY

[0003] In view of the above-mentioned deficiencies in the prior art, the present application aims to provide a detection equipment which can perform multidirectional swing test, can save a large amount of test time, and has the advantages of simple operation, time saving and labor saving.

[0004] The technical scheme adopted by the present application to achieve the above object is: a dynamic detection equipment for automobile bush durability, comprising a test platform, a bush fixing device, a left-right swinging assembly, an up-down swinging assembly, a transmission assembly, the upper end of the test platform is connected with the left-right swinging assembly, the left-right swinging assembly is fixedly connected with the bush fixing device, in use, the left-right swinging assembly can drive the bush fixing device to swing left and right, the swing amplitude is greater than 10° and less than 30°, that is, the sum of the maximum rotation angle of the right swing of the bush fixing device and the maximum rotation angle of the left swing, the bush fixing device is fixedly connected with an automobile bush inside, the center of the automobile bush is connected with a connecting sleeve, during the test process, the connecting shaft and the connecting sleeve rotate synchronously, the connecting sleeve frictionally moves relative to the inner ring of the automobile bush during the rotation process, and the automobile bush can be subjected to wear detection, the connecting sleeve is fixedly connected with a connecting shaft inside, one end of the connecting shaft is connected with the up-down swinging assembly, the up-down swinging assembly can perform up-down swinging operation on one end of the connecting shaft, the up-down swinging assembly is installed on the test platform on one side of the left-right swinging assembly, the other end of the connecting shaft is fixedly connected with a universal joint, the other end of the universal joint is fixedly connected with a driving shaft, during the up-down swinging process of one end of the connecting shaft by the up-down swinging assembly, the connecting shaft and the driving shaft are connected through the universal joint, during the test process, the other end of the connecting shaft is relatively rotated through the universal joint during the up-down swinging process of one end of the connecting shaft, which can prevent the other end of the connecting shaft from swinging up and down and causing lever movement with the automobile bush as a fulcrum, thereby causing the driving shaft connected with the connecting shaft to repeatedly bend, causing metal fatigue of the driving shaft and breaking, and after the universal joint is added, angular inclination can occur at the universal joint, thereby avoiding the phenomenon of repeated bending of the driving shaft and metal fatigue.

[0005] In one embodiment, the lower end edge and the corner positions of the test platform are fixedly connected with support legs, respectively, and the lower end of each support leg is fixedly connected with a foot block.

[0006] In one embodiment, the bushing fixing device comprises a lower clamping block, an upper clamping block, a screw column, a semicircular gasket, the lower clamping block is fixedly connected to the left and right swing assembly, a fixed groove is oppositely provided between the lower clamping block and the upper clamping block, the fixed groove between the upper clamping block and the lower clamping block is combined to form a fixed groove hole, the automobile bushing is fixedly arranged in the fixed groove hole, the semicircular gasket is arranged between the fixed groove and the automobile bushing, two groups of screw columns are fixedly connected to the lower clamping block on both sides of the fixed groove, two groups of through holes are respectively penetrated through the upper clamping block on both sides of the fixed groove, and the screw column is threadedly connected with a fastening nut after penetrating through the through hole.

[0007] In one embodiment, a first limiting block is fixedly connected to one corner of the upper end of the lower clamping block, a first limiting groove is provided at the other diagonal corner of the upper end of the lower clamping block, a second limiting block is fixedly connected to one corner of the lower end of the upper clamping block, and a second limiting groove is provided at the other diagonal corner of the upper clamping block, the first limiting block is clamped and connected in the second limiting groove, and the second limiting block is clamped and connected in the first limiting groove.

[0008] In one embodiment, the upper and lower swing assemblies comprise side guides, an upper cover plate, a sliding block, a connecting bearing, a shaft sleeve, a connecting rod, a first rotating disc, a first rotating shaft, a rotating sleeve, and a second driving motor, the upper end of the test platform is fixedly connected with two groups of opposite side guides, the upper end of the side guide is fixedly connected with the upper cover plate, the sliding block is slidingly connected between the two groups of side guides, the one side of the sliding block is fixedly connected with a bearing sleeve, the bearing sleeve is fixedly connected with a connecting bearing in the center, the connecting bearing is fixedly connected with a shaft sleeve in the center, the one end of the connecting shaft is connected in the shaft sleeve, the lower end of the sliding block is provided with a rotating groove, the rotating groove is rotatably connected with the connecting rod, the opposite test platform of the rotating groove is provided with a movable groove hole, the connecting rod is movably connected in the movable groove hole, the lower end of the test platform on one side of the movable groove hole is fixedly connected with the second driving motor, the rotating shaft of the second driving motor is fixedly connected with the first rotating disc, the edge of the first rotating disc is fixedly connected with the first rotating shaft, the first rotating shaft is slidingly connected with the rotating sleeve, and the one end of the connecting rod is fixedly connected to the rotating sleeve after penetrating through the movable groove hole.

[0009] In one embodiment, the transmission assembly includes a drive gear, a first transmission gear, a second transmission gear, a first bevel gear, a second bevel gear, a shaft sleeve plate, a drive shaft is fixedly connected with the drive gear between the two groups of mounting plates, the two sides of the drive gear are respectively meshed with the first transmission gear, the first transmission gear is symmetrical about the drive gear, the first transmission gear is rotatably connected on one side of a group of mounting plates, the first transmission gear is respectively meshed with the second transmission gear, the center line of the second transmission gear is fixedly connected with the transmission shaft, the two ends of the transmission shaft are respectively rotatably connected on the opposite mounting plates, the transmission shaft is respectively fixedly connected with the first bevel gear, the first bevel gear is respectively meshed with the second bevel gear, the second bevel gear is respectively fixedly connected with the rotating shaft, the lower end of the rotating shaft passes through the test platform and is in transmission connection with the left and right swing assemblies, the rotating shaft above the test platform is rotatably connected with the shaft sleeve plate, one end of the shaft sleeve plate is fixedly connected with the other group of mounting plates.

[0010] In one embodiment, the first bevel gear and the second bevel gear are both curved tooth bevel gears.

[0011] In one embodiment, the number of teeth of the second transmission gear is greater than the number of teeth of the first transmission gear, the number of teeth of the drive gear is greater than the number of teeth of the second transmission gear, the number of inclined teeth of the first bevel gear is greater than the number of teeth of the second transmission gear, and the number of inclined teeth of the second bevel gear is less than the number of inclined teeth of the first bevel gear.

[0012] In one embodiment, the left and right swing assemblies include a second rotating disc, a second rotating shaft, a linear sliding sleeve ring, a reciprocating guide rod, a sliding guide block, a fixed block, a chain belt, a chain wheel, a rotating column, a plane thrust bearing, and a rotating table, the lower end of the rotating shaft passes through the test platform and is fixedly connected with the second rotating disc, the lower end edge of the second rotating disc is fixedly connected with the second rotating shaft, the second rotating shaft is slidingly connected in the linear sliding sleeve ring, one side of the middle part of the linear sliding sleeve ring is fixedly connected with the reciprocating guide rod, the two sides of the lower end of the test platform are fixedly connected with a plurality of fixed blocks, the lower end of the fixed block is fixedly connected with the sliding guide block, the lower end of the sliding guide block is provided with a sliding groove, the reciprocating guide rod is slidingly connected in the sliding groove, the other end of the reciprocating guide rod is fixedly connected with the chain belt, the chain belt is connected around the outside of the chain wheel, the middle part of the chain wheel is fixedly connected with the rotating column, the upper end of the rotating column passes through the test platform and is fixedly connected with the rotating table, the rotating column is rotatably connected on the test platform, the upper end of the rotating table is fixedly connected with the lower clamping block, the test platform of the lower end of the rotating table is provided with a mounting groove, the mounting groove is fixedly connected with the plane thrust bearing, and the upper end of the plane thrust bearing is fixedly connected with the rotating table.

[0013] In one of the embodiments, the lower end of the lower clamping block is fixedly connected with two groups of installation foot plates on both sides, installation slot holes are formed on the edge of the installation foot plates, installation screw holes are formed on the opposite rotating tables, and installation bolts are screw-connected in the installation screw holes after penetrating through the installation slot holes.

[0014] The device can realize the test on the horizontal radial direction of the automobile bushing through the left and right swinging assembly, and realize the test on the vertical radial direction of the automobile bushing through the up and down swinging assembly, thereby solving the problem that the prior art can only realize the test in one direction, saving the test time, being convenient to operate, and being reliable in test. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0016] Figure 2 It is a disassembled structure schematic diagram of the bushing fixing device of the present application;

[0017] Figure 3 It is a cross-sectional structure schematic diagram of the up and down swinging assembly of the present application;

[0018] Figure 4 It is a connection structure schematic diagram of the transmission assembly of the present application;

[0019] Figure 5 It is a connection structure schematic diagram of the left and right swinging assembly of the present application;

[0020] Figure 6 It is a detailed structure schematic diagram of A1 part in 5;

[0021] Figure 7 It is a connection structure schematic diagram of the rotating table of the present application.

[0022] In the figure: 1 test platform, 2 bushing fixing device, 201 lower clamping block, 202 upper clamping block, 203 screw column, 204 semicircular gasket, 205 fixing groove, 206 through hole, 207 fastening nut, 208 first limiting block, 209 first limiting groove, 210 second limiting block, 211 second limiting groove, 212 mounting foot plate, 213 mounting slot hole, 214 mounting screw hole, 3 left and right swing assembly, 301 second rotating disc, 302 second rotating shaft, 303 linear sliding sleeve ring, 304 reciprocating guide rod, 305 sliding guide block, 306 fixed block, 307 chain belt, 308 chain wheel, 309 rotating column, 310 plane thrust bearing, 311 rotating table, 312 mounting groove, 4 up and down swing assembly, 401 side guide frame, 402 upper cover plate, 403 sliding block, 404 connecting bearing, 405 shaft sleeve pipe, 406 connecting rod, 407 first rotating disc, 408 first rotating shaft, 409 rotating sleeve, 410 second driving motor, 411 bearing sleeve, 412 rotating groove, 413 movable slot hole, 5 transmission assembly, 501 driving gear, 502 first transmission gear, 503 second transmission gear, 504 first bevel gear, 505 second bevel gear, 506 shaft sleeve plate, 507 transmission shaft, 508 rotating shaft, 6 automobile bushing, 7 connecting sleeve, 8 connecting shaft, 9 universal joint, 10 driving shaft, 11 mounting plate, 12 first driving motor, 13 mounting seat, 14 supporting leg, 15 supporting foot block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0024] Please refer to Figures 1-7The utility model provides a kind of dynamic detection equipment of automobile bush durability, including test platform 1, bush fixing device 2, left and right swing assembly 3, up and down swing assembly 4, transmission assembly 5, the upper end of test platform 1 is connected with left and right swing assembly 3, and left and right swing assembly 3 is fixedly connected with bush fixing device 2, when using, left and right swing assembly 3 can drive bush fixing device 2 left and right swing, swing amplitude is greater than 10 °, less than 30 °, i.e. the sum of the maximum rotation angle of bush fixing device 2 right swing and the maximum rotation angle of left swing, bush fixing device 2 is fixedly connected with automobile bush 6 in, the center of automobile bush 6 is connected with connecting sleeve 7, connecting shaft 8 and connecting sleeve 7 synchronous rotation during testing, connecting sleeve 7 is relative to the inner ring of automobile bush 6 and is rubbed during rotation, can carry out wear detection to automobile bush 6, connecting sleeve 7 is fixedly connected with connecting shaft 8, and one end of connecting shaft 8 is connected with up and down swing assembly 4, and up and down swing assembly 4 can be operated up and down swing to one end of connecting shaft 8, and up and down swing assembly 4 is installed on the test platform 1 of one side of left and right swing assembly 3, and the other end of connecting shaft 8 is fixedly connected with universal joint 9, and the other end of universal joint 9 is fixedly connected with driving shaft 10, up and down swing assembly 4 is connected to connecting shaft 8 and driving shaft 10 during the process of one end of connecting shaft 8 being operated up and down swing by universal joint 9, during testing, one end of connecting shaft 8 is operated up and down swing, and the other end of connecting shaft 8 is relatively rotated by universal joint 9, can prevent the other end of connecting shaft 8 from being operated up and down swing, and lever movement occurs with automobile bush 6 as fulcrum, causes driving shaft 10 connected with connecting shaft 8 to repeatedly bend, makes driving shaft 10 produce metal fatigue and breakage phenomenon, and after increasing universal joint 9, angle inclination can occur at universal joint 9, to avoid the phenomenon that driving shaft 10 repeatedly bends and appears metal fatigue, driving shaft 10 is sequentially connected with first driving motor 12 after passing through two groups of mounting plates 11, and first driving motor 12 is fixedly connected on mounting seat 13, and mounting seat 13 is fixedly connected on test platform 1, two groups of mounting plates 11 are all fixedly connected on test platform 1, and two groups of mounting plates 11 are all located between first driving motor 12 and left and right swing assembly 3, transmission assembly 5 is arranged between two groups of mounting plates 11, and transmission assembly 5 is drivingly connected with driving shaft 10, simultaneously, transmission assembly 5 is drivingly connected with left and right swing assembly 3 of the lower end of test platform 1.

[0025] In one embodiment, the lower end edge and corner positions of the test platform 1 are fixedly connected with support legs 14, and the lower ends of the support legs 14 are fixedly connected with foot blocks 15 for fixing and supporting the overall structure of the device.

[0026] In one embodiment, the bushing fixing device 2 comprises a lower clamping block 201, an upper clamping block 202, a screw column 203, and a semicircular gasket 204. The lower clamping block 201 is fixedly connected to the left and right swing assembly 3. A fixed groove 205 is oppositely provided between the lower clamping block 201 and the upper clamping block 202. The fixed groove 205 between the upper clamping block 202 and the lower clamping block 201 is combined to form a fixed groove 205 hole. The automobile bushing 6 is fixedly arranged in the fixed groove 205 hole. The semicircular gasket 204 is arranged between the fixed groove 205 and the automobile bushing 6. Two groups of screw columns 203 are fixedly connected to the lower clamping block 201 on both sides of the fixed groove 205. Two groups of through holes 206 are respectively penetrated through the upper clamping block 202 on both sides of the fixed groove 205. The screw column 203 is threadedly connected with a fastening nut 207 after penetrating through the through hole 206, so as to realize the relative fixation of the automobile bushing 6.

[0027] In one embodiment, a first limiting block 208 is fixedly connected to one corner of the upper end of the lower clamping block 201. A first limiting groove 209 is provided at the other corner of the upper end of the lower clamping block 201. A second limiting block 210 is fixedly connected to one corner of the lower end of the upper clamping block 202. A second limiting groove 211 is provided at the other corner of the upper clamping block 202. The first limiting block 208 is clamped and connected in the second limiting groove 211. The second limiting block 210 is clamped and connected in the first limiting groove 209, so as to limit the installation position of the upper clamping block 202 and the lower clamping block 201, and prevent the incorrect installation of the upper clamping block 202 and the lower clamping block 201.

[0028] In one embodiment, the up-and-down swinging assembly 4 comprises side guides 401, an upper cover plate 402, a sliding block 403, a connecting shaft 8 bearing 404, a shaft sleeve 405, a connecting rod 406, a first rotating disc 407, a first rotating shaft 408, a rotating sleeve 409, and a second driving motor 410. The upper end of the test platform 1 is fixedly connected with two groups of opposite side guides 401. The upper end of the side guides 401 is fixedly connected with the upper cover plate 402. The sliding block 403 is slidingly connected between the two groups of side guides 401. One side of the sliding block 403 is fixedly connected with the bearing sleeve 411. The bearing sleeve 411 is fixedly connected with the connecting shaft 8 bearing 404 in the center. The connecting shaft 8 bearing 404 is fixedly connected with the shaft sleeve 405 in the center. One end of the connecting shaft 8 is sleeved and connected in the shaft sleeve 405. The lower end of the sliding block 403 is provided with a rotating groove 412. The connecting rod 406 is rotatably connected in the rotating groove 412. The test platform 1 is provided with a movable slot hole 413 opposite the rotating groove 412. The connecting rod 406 is movably connected in the movable slot hole 413. The lower end of the test platform 1 is fixedly connected with the second driving motor 410 on one side of the movable slot hole 413. The rotating shaft of the second driving motor 410 is fixedly connected with the first rotating disc 407. The edge of the first rotating disc 407 is fixedly connected with the first rotating shaft 408 on one side. The first rotating shaft 408 is slidingly sleeved with the rotating sleeve 409. One end of the connecting rod 406 is fixedly connected with the rotating sleeve 409 after passing through the movable slot hole 413. In use, the second driving motor 410 drives the first rotating disc 407 to rotate, and the first rotating shaft 408 on the first rotating disc 407 moves in a circular motion. The first rotating shaft 408 drives one end of the connecting rod 406 to move in a circular motion through the rotating sleeve 409. When the rotating sleeve 409 moves to the bottom of the first rotating disc 407, the length of the connecting rod 406 remains unchanged. Therefore, the other end of the connecting rod 406 drives the sliding block 403 to move to the lowest position of the side guides 401. When the rotating sleeve 409 moves to the uppermost end of the first rotating disc 407, the connecting rod 406 pushes the sliding block 403 to move upward to the highest position of the side guides 401. With the repeated circular motion of the rotating sleeve 409, the sliding block 403 is repeatedly moved up and down under the action of the connecting rod 406. The connecting shaft 8 bearing 404 drives one end of the connecting shaft 8 to repeatedly move up and down through the shaft sleeve 405, thereby realizing the vertical and radial durability test of the automobile bushing 6.

[0029] In one embodiment, the transmission assembly 5 includes a drive gear 501, a first transmission gear 502, a second transmission gear 503, a first bevel gear 504, a second bevel gear 505, and a shaft sleeve plate 506. The drive gear 501 is fixedly connected to the drive shaft 10 between the two sets of mounting plates 11. The drive gear 501 is meshingly connected with the first transmission gears 502 on both sides. The first transmission gears 502 are symmetrical about the drive gear 501 and are rotatably connected to one side of the mounting plate 11. The first transmission gears 502 are meshingly connected with the second transmission gears 503. The second transmission gears 503 are fixedly connected with the transmission shaft 507 at the center line. The transmission shaft 507 is rotatably connected to the opposite mounting plates 11 at both ends. The transmission shafts are fixedly connected with the first bevel gears 504. The first bevel gears 504 are meshingly connected with the second bevel gears 505. The second bevel gears 505 are fixedly connected with the rotating shafts 508. The rotating shafts 508 are connected with the left and right swing assemblies 3 below the test platform 1. The rotating shafts 508 are rotatably connected with the shaft sleeve plate 506 above the test platform 1. One end of the shaft sleeve plate 506 is fixedly connected with the other set of mounting plates 11. The shaft sleeve plate 506 is used to support the rotating shaft 508 and improve the stability of the rotating shaft 508 during rotation. In use, the second drive motor 410 drives the drive shaft 10 to rotate. The drive shaft 10 drives the drive gear 501 to rotate. The drive gear 501 drives the first transmission gears 502 on both sides to rotate. The first transmission gears 502 drive the second transmission gears 503 connected on one side to rotate. The second transmission gears 503 drive the first bevel gears 504 through the transmission shaft 507 to rotate. The first bevel gears 504 drive the second bevel gears 505 to rotate. The second bevel gears 505 drive the rotating shafts 508 to rotate. The rotating shafts 508 transmit power to the left and right swing assemblies 3.

[0030] In one embodiment, the first bevel gear 504 and the second bevel gear 505 are both curved tooth bevel gears, which are used to improve the stability of the device during operation.

[0031] In one embodiment, the number of teeth of the second transmission gear 503 is greater than the number of teeth of the first transmission gear 502, the number of teeth of the driving gear 501 is greater than the number of teeth of the second transmission gear 503, so that the rotation speed of the driving gear 501 is less than the rotation speed of the second transmission gear 503, the number of helical teeth of the first bevel gear 504 is greater than the number of teeth of the second transmission gear 503, the number of helical teeth of the second bevel gear 505 is less than the number of helical teeth of the first bevel gear 504, so that the rotation speed of the second bevel gear 505 is greater than the rotation speed of the second transmission gear 503, and the rotation speed of the rotating shaft 508 connected with the second bevel gear 505 is greater than the rotation speed of the driving shaft 10. In the present application, the rotation speed of the driving shaft 10 is controlled at 60-90 rpm under the drive of the second driving motor 410, and the rotation speed of the rotating shaft 508 is 120-180 rpm.

[0032] In one embodiment, the left and right swing assembly 3 comprises a second rotating disc 301, a second rotating shaft 302, a linear sliding sleeve ring 303, a reciprocating guide rod 304, a sliding guide block 305, a fixed block 306, a chain belt 307, a chain wheel 308, a rotating column 309, a plane thrust bearing 310, a rotating table 311, the lower end of the rotating shaft 508 is fixedly connected with the second rotating disc 301 after penetrating through the test platform 1, the lower end edge of the second rotating disc 301 is fixedly connected with the second rotating shaft 302, the second rotating shaft 302 is slidingly connected in the linear sliding sleeve ring 303, one side of the middle part of the linear sliding sleeve ring 303 is fixedly connected with the reciprocating guide rod 304, the lower end of each of the two sides of the test platform 1 is fixedly connected with the fixed block 306, the lower end of each of the fixed blocks 306 is fixedly connected with the sliding guide block 305, the lower end of each of the sliding guide blocks 305 is provided with a sliding groove, the reciprocating guide rods 304 are slidingly connected in the sliding grooves, the other ends of the reciprocating guide rods 304 are fixedly connected with the two ends of the chain belt 307, the chain belt 307 surrounds the outside of the chain wheel 308, the middle part of the chain wheel 308 is fixedly connected with the rotating column 309, the upper end of the rotating column 309 is fixedly connected with the rotating table 311 after penetrating through the test platform 1, the rotating column 309 is rotationally connected on the test platform 1, the upper end of the rotating table 311 is fixedly connected with the lower clamping block 201, the test platform 1 on the lower end of the rotating table 311 is provided with a mounting groove 312, the plane thrust bearing 310 is fixedly connected in the mounting groove 312, the upper end of the plane thrust bearing 310 is fixedly connected with the rotating table 311, in specific use, the rotating shaft 508 drives the second rotating disc 301 to rotate, the second rotating disc drives the second rotating shaft 302 to make a circular motion, in the present application, when one group of the second rotating shaft 302 is located at the leftmost position of the second rotating disc 301, the other group of the second rotating shaft 302 is located at the rightmost position of the other group of the second rotating disc 301, and in the structure, the rotating directions of the two groups of rotating shafts 508 and the second rotating discs 301 are consistent, therefore, in the reciprocating motion of the second rotating shaft 302, the linear reciprocating motion of the reciprocating guide rod 304 is driven by the linear sliding sleeve ring 303, and the motion directions of the two groups of reciprocating guide rods 304 are always opposite, the chain belt 307 is pulled by the other end of the reciprocating guide rod 304, the chain belt 307 is pulled once every time, which drives the chain wheel 308 to reverse once every time, and the rotation angle is equal to the swing amplitude of the bush fixing device 2, at this time, the rotating table 311 is relatively swung by the chain wheel 308 through the rotating column 309, the rotating table 311 drives the bush fixing device 2 to relatively swing, so as to realize the horizontal radial durability test of the automobile bush 6.

[0033] In one embodiment, the lower end of the lower clamping block 201 is fixedly connected with two groups of mounting foot plates 212 on both sides, the edge of the mounting foot plate 212 is provided with a mounting slot hole 213, the opposite rotating table 311 is provided with a mounting screw hole 214, the mounting screw is screwed in the mounting screw hole 214 after passing through the mounting slot hole 213, for facilitating the disassembly and assembly of the bushing fixing device 2.

[0034] It will be obvious to a person skilled in the art that, as the technology advances, the basic

[0035] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A dynamic detection device for automobile bushing durability, comprising a test platform (1), a bushing fixing device (2), a left and right swing assembly (3), an up and down swing assembly (4), a transmission assembly (5), characterized in that: The upper end of the test platform (1) is connected with left and right swing assemblies (3), the left and right swing assemblies (3) are fixedly connected with bush fixing devices (2), the bush fixing devices (2) are fixedly connected with automobile bushes (6) inside, the centers of the automobile bushes (6) are connected with connecting sleeves (7), the connecting sleeves (7) are fixedly connected with connecting shafts (8) inside, one end of the connecting shaft (8) is connected with an up and down swing assembly (4), the up and down swing assembly (4) is installed on the test platform (1) on one side of the left and right swing assemblies (3), the other end of the connecting shaft (8) is fixedly connected with a universal joint (9), the other end of the universal joint (9) is fixedly connected with a driving shaft (10), the driving shaft (10) is connected with a first driving motor (12) after passing through two groups of mounting plates (11) in sequence, the first driving motor (12) is fixedly connected on a mounting base (13), the mounting base (13) is fixedly connected on the test platform (1), the two groups of mounting plates (11) are fixedly connected on the test platform (1), and the two groups of mounting plates (11) are located between the first driving motor (12) and the left and right swing assemblies (3), transmission assemblies (5) are arranged between the two groups of mounting plates (11), the transmission assemblies (5) are in transmission connection with the driving shaft (10), and meanwhile, the transmission assemblies (5) are in transmission connection with the left and right swing assemblies (3) at the lower end of the test platform (1). The up-and-down swinging assembly (4) comprises side guides (401), an upper cover plate (402), sliding blocks (403), connecting bearings (404), shaft sleeve pipes (405), connecting rods (406), first rotating discs (407), first rotating shafts (408), rotating sleeves (409), and second driving motors (410). The upper end of the test platform (1) is fixedly connected with two groups of opposite side guides (401). The upper end of the side guide (401) is fixedly connected with the upper cover plate (402). The sliding blocks (403) are slidingly connected between the two groups of side guides (401). One side of the sliding block (403) is fixedly connected with a bearing sleeve (411). The bearing sleeve (411) is fixedly connected with the connecting bearing (404) inside. The connecting bearing (404) is fixedly connected with the shaft sleeve pipe (405) at the center. One end of the connecting shaft (8) is sleeved and connected in the shaft sleeve pipe (405). The lower end of the sliding block (403) is provided with a rotating groove (412). The rotating groove (412) is rotatably connected with the connecting rod (406). The opposite test platform (1) is provided with a movable slot hole (413) in the rotating groove (412). The connecting rod (406) is movably connected in the movable slot hole (413). The lower end of the test platform (1) on one side of the movable slot hole (413) is fixedly connected with the second driving motor (410). The rotating shaft of the second driving motor (410) is fixedly connected with the first rotating disc (407). The edge of the first rotating disc (407) is fixedly connected with the first rotating shaft (408). The first rotating shaft (408) is slidingly connected with the rotating sleeve (409). One end of the connecting rod (406) penetrates through the movable slot hole (413) and is fixedly connected with the rotating sleeve (409). The left and right swing assembly (3) comprises a second rotating disc (301), a second rotating shaft (302), a linear sliding sleeve ring (303), a reciprocating guide rod (304), a sliding guide block (305), a fixed block (306), a chain belt (307), a chain wheel (308), a rotating column (309), a plane thrust bearing (310), a rotating table (311), the transmission assembly (5) is fixedly connected with the second rotating disc (301) through the test platform (1), the lower end edge of the second rotating disc (301) is fixedly connected with the second rotating shaft (302), the second rotating shaft (302) is respectively sleeved and connected in the linear sliding sleeve ring (303), one side of the middle part of the linear sliding sleeve ring (303) is fixedly connected with the reciprocating guide rod (304), the lower end of the test platform (1) is fixedly connected with a plurality of fixed blocks (306), the lower end of the fixed block (306) is fixedly connected with the sliding guide block (305), the lower end of the sliding guide block (305) is provided with a sliding groove, the reciprocating guide rod (304) is respectively connected in the sliding groove, the other end of the reciprocating guide rod (304) is fixedly connected with the chain belt (307), the chain belt (307) surrounds the outside of the chain wheel (308), the middle part of the chain wheel (308) is fixedly connected with the rotating column (309), the upper end of the rotating column (309) is fixedly connected with the rotating table (311) after penetrating through the test platform (1), the rotating column (309) is rotatably connected on the test platform (1), the upper end of the rotating table (311) is fixedly connected with the bushing fixing device (2), the lower end of the test platform (1) of the rotating table (311) is provided with an installation groove (312), the installation groove (312) is fixedly connected with the plane thrust bearing (310), and the upper end of the plane thrust bearing (310) is fixedly connected with the rotating table (311).

2. The dynamic detection device for the endurance of the automobile bushing according to claim 1, characterized in that: The lower end edge and the corner position of the test platform (1) are fixedly connected with supporting legs (14), and the lower end of the supporting leg (14) is fixedly connected with a supporting leg block (15).

3. The dynamic detection device for the endurance of the automobile bushing according to claim 1, characterized in that: The bush fixing device (2) comprises a lower clamping block (201), an upper clamping block (202), a screw column (203), and a semicircular gasket (204), the lower clamping block (201) is fixedly connected to the left and right swing assembly (3), a fixed groove (205) is oppositely formed between the lower clamping block (201) and the upper clamping block (202), the fixed groove (205) between the upper clamping block (202) and the lower clamping block (201) is combined to form a fixed groove (205) hole, the automobile bush (6) is fixedly arranged in the fixed groove (205) hole, the semicircular gasket (204) is arranged between the fixed groove (205) and the automobile bush (6), two groups of screw columns (203) are fixedly connected to the lower clamping block (201) on both sides of the fixed groove (205), two groups of through holes (206) are respectively penetrated through the upper clamping block (202) on both sides of the fixed groove (205), and the screw column (203) is screw-connected with a fastening nut (207) after penetrating through the through hole (206).

4. The dynamic detection device for the endurance of the automobile bushing according to claim 3, characterized in that: A first limiting block (208) is fixedly connected to one corner of the upper end of the lower clamping block (201), a first limiting groove (209) is formed at the other diagonal corner of the upper end of the lower clamping block (201), a second limiting block (210) is fixedly connected to one corner of the lower end of the upper clamping block (202), a second limiting groove (211) is formed at the other diagonal corner of the upper clamping block (202), the first limiting block (208) is clamped and connected in the second limiting groove (211), and the second limiting block (210) is clamped and connected in the first limiting groove (209).

5. The dynamic detection device for the endurance of the automobile bushing according to claim 1, characterized in that: The transmission assembly (5) comprises a drive gear (501), a first transmission gear (502), a second transmission gear (503), a first bevel gear (504), a second bevel gear (505), and a shaft sleeve plate (506). The drive gear (501) is fixedly connected to the driving shaft (10) between the two groups of mounting plates (11). The two sides of the drive gear (501) are respectively meshed with the first transmission gears (502), which are symmetrical about the drive gear (501). The first transmission gears (502) are rotatably connected to one side of a group of mounting plates (11). The first transmission gears (502) are respectively meshed with the second transmission gears (503). The center lines of the second transmission gears (503) are fixedly connected with the transmission shafts (507). The two ends of the transmission shafts (507) are respectively rotatably connected to the opposite mounting plates (11). The transmission shafts are respectively fixedly connected with the first bevel gears (504). The first bevel gears (504) are respectively meshed with the second bevel gears (505). The second bevel gears (505) are respectively fixedly connected with the rotating shafts (508). The lower ends of the rotating shafts (508) pass through the test platform (1) and are drivingly connected with the left and right swing assemblies (3). The rotating shafts (508) above the test platform (1) are rotatably connected with the shaft sleeve plates (506). One end of the shaft sleeve plate (506) is fixedly connected with the other group of mounting plates (11).

6. The dynamic detection device for the endurance of the automobile bushing according to claim 5, characterized in that: The first bevel gear (504) and the second bevel gear (505) are both curve-tooth bevel gears.

7. The dynamic detection device for the endurance of the automobile bushing according to claim 6, characterized in that: The number of teeth of the second transmission gear (503) is greater than that of the first transmission gear (502). The number of teeth of the drive gear (501) is greater than that of the second transmission gear (503). The number of helical teeth of the first bevel gear (504) is greater than that of the second transmission gear (503). The number of helical teeth of the second bevel gear (505) is less than that of the first bevel gear (504).

8. The dynamic detection device for the endurance of the automobile bushing according to claim 4, characterized in that: The lower ends of the lower clamping blocks (201) are respectively fixedly connected with two groups of mounting foot plates (212). The edges of the mounting foot plates (212) are provided with mounting slot holes (213). The opposite rotating tables (311) are provided with mounting screw holes (214). The mounting screws are threadedly connected in the mounting screw holes (214) after passing through the mounting slot holes (213).

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