Dynamic detection equipment for durability of automobile bushing

Abstract

The invention discloses a dynamic detection device for the durability of an automobile bushing, the upper end of a test platform is connected with a left-right swing assembly, the left-right swing assembly is fixedly connected with a bushing fixing device, the bushing fixing device is internally and fixedly connected with the automobile bushing, the center of the automobile bushing is connected with a connecting sleeve, and the connecting sleeve is connected with a left-right swing assembly. A connecting shaft is fixedly connected into the connecting sleeve, one end of the connecting shaft is connected with the vertical swing 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, and the driving shaft sequentially penetrates through the two mounting plates and then is connected with a first driving motor. A transmission assembly is arranged between the two mounting plates and is in transmission connection with the driving shaft and the left-right swing assembly. The invention aims to provide a detection device which can perform a multi-directional swing test, can save a large amount of test time, is simple to operate, and saves time and labor.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component detection equipment, in particular to a dynamic detection equipment for the durability of automobile bushings. Background Art

[0002] Bushings are accessories used outside mechanical parts to achieve sealing, wear protection and other functions. They refer to ring sleeves that act as cushions. Bushings are widely used in the automotive industry. For example, rubber bushings are increasingly used in automotive suspension systems as an important component of vehicle chassis components to attenuate vibration and impact caused by high-speed driving. Bushings are important components on cars, so the inspection of bushing components is particularly important. The stress state of automotive bushings on cars is multi-directional. Generally, the durability requirements are that the radial load and the axial swing angle meet the number of rotations or stretching. At present, the dynamic durability test equipment for bushings on the market can only perform fatigue tests in one direction. The durability tests of bushings in each direction need to be carried out separately, which makes the test cycle long, time-consuming and labor-intensive. Summary of the invention

[0003] In view of the above-mentioned deficiencies existing in the prior art, an object of the present invention is to provide a detection device which can perform multi-directional swing tests, can save a lot of test time, and has simple operation, time-saving and labor-saving features.

[0004] The technical scheme adopted by the present invention to achieve the above-mentioned purpose is: a dynamic detection device for the durability of an automobile bushing, comprising a test platform, a bushing fixing device, a left-right swinging assembly, an up-down swinging assembly, and a transmission assembly. The upper end of the test platform is connected with a left-right swinging assembly, and the bushing fixing device is fixedly connected to the left-right swinging assembly. When in use, the left-right swinging assembly can drive the bushing fixing device to swing left-right, and the swing amplitude is greater than 10° and less than 30°, that is, the sum of the maximum rotation angle of the bushing fixing device swinging to the right and the maximum rotation angle of the bushing fixing device swinging to the left. The bushing fixing device is fixedly connected with an automobile bushing, and the center of the automobile bushing is connected with a connecting sleeve. During the test process, the connecting shaft and the connecting sleeve rotate synchronously, and the connecting sleeve rubs against the inner ring of the automobile bushing during the rotation process, so that the wear of the automobile bushing can be detected. A connecting shaft is fixedly connected with the connecting sleeve, and one end of the connecting shaft is connected to the up-down swinging assembly, and the up-down swinging assembly can swing one end of the connecting shaft up and down. The up-down swinging assembly is installed on the test platform on one side of the left-right swinging assembly, and the other end of the connecting shaft is fixedly connected to a universal joint. The other end of the universal joint is fixedly connected with a driving shaft. During the process of the up-and-down swinging assembly swinging one end of the connecting shaft up and down, the connecting shaft and the driving shaft are connected through the universal joint. During the test process, during the up-and-down swinging of one end of the connecting shaft, the other end of the connecting shaft realizes relative rotation through the universal joint, which can prevent the lever movement with the automobile bushing as the fulcrum during the up-and-down swinging of the other end of the connecting shaft, resulting in repeated bending of the driving shaft connected to the connecting shaft, causing metal fatigue and fracture of the driving shaft. After the universal joint is added, an angle tilt can occur at the universal joint, thereby avoiding the phenomenon of repeated bending and metal fatigue of the driving shaft. The driving shaft passes through two groups of mounting plates in sequence and is connected to the first driving motor. The first driving motor is fixedly connected to the mounting seat, and the mounting seat is fixedly connected to the test platform. The two groups of mounting plates are fixedly connected to the test platform, and the two groups of mounting plates are located between the first driving motor and the left and right swinging assembly. A transmission assembly is arranged between the two groups of mounting plates, and the transmission assembly is transmission-connected to the driving shaft. At the same time, the transmission assembly is transmission-connected to the left and right swinging assembly at the lower end of the test platform.

[0005] In one embodiment, the lower edge and corner positions of the test platform are respectively fixedly connected with support legs, and the lower ends of the support legs are fixedly connected with support blocks.

[0006] In one of the embodiments, the bushing fixing device includes a lower clamping block, an upper clamping block, a screw column, and a semicircular gasket. The lower clamping block is fixedly connected to the left and right swinging components. A fixing groove is relatively opened between the lower clamping block and the upper clamping block. The fixing grooves between the upper clamping block and the lower clamping block are combined to form a fixing slot hole. The automobile bushing is relatively fixed in the fixing slot hole. A semicircular gasket is arranged between the fixing slot and the automobile bushing. Two groups of screw columns are fixedly connected to the lower clamping blocks on both sides of the fixing slot, and two groups of through holes are respectively penetrated on the upper clamping blocks on both sides of the fixing slot. After the screw columns pass through the through holes, they are threadedly connected with fastening nuts.

[0007] In one embodiment, a first limit block is fixedly connected to one corner of the upper end of the lower clamping block, a first limit groove is opened at the other diagonal corner of the upper end of the lower clamping block, a second limit block is fixedly connected to one corner of the lower end of the upper clamping block, a second limit groove is opened at the other diagonal corner of the upper clamping block, the first limit block is snap-fitted into the second limit groove, and the second limit block is snap-fitted into the first limit groove.

[0008] In one embodiment, the up and down swinging assembly includes a side guide frame, an upper cover plate, a sliding block, a connecting bearing, a shaft sleeve, a connecting rod, a first rotating disk, a first rotating shaft, a rotating sleeve, and a second driving motor. The upper end of the test platform is fixedly connected to two groups of opposite side guide frames, the upper end of the side guide frame is fixedly connected to the upper cover plate, a sliding block is slidably connected between the two groups of side guide frames, one side of the sliding block is fixedly connected to a bearing sleeve, a connecting bearing is fixedly connected inside the bearing sleeve, the center of the connecting bearing is fixedly connected to a shaft sleeve, and one end of the connecting shaft is sleeve-connected A rotating groove is provided at the lower end of the sliding block in the shaft sleeve, a connecting rod is rotatably connected in the rotating groove, a movable slot hole is provided on the test platform opposite to the rotating groove, the connecting rod is movably connected in the movable slot hole, a second driving motor is fixedly connected to the lower end of the test platform on one side of the movable slot hole, a first rotating disk is fixedly connected to the rotating shaft of the second driving motor, a first rotating shaft is fixedly connected to one side of the edge of the first rotating disk, a rotating sleeve is connected to the sliding sleeve on the first rotating shaft, and one end of the connecting rod is fixedly connected to the rotating sleeve after passing through the movable slot hole.

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

[0010] In one embodiment, the first bevel gear and the second bevel gear are both curved 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 driving gear is greater than the number of teeth of the second transmission gear, the number of helical teeth of the first bevel gear is greater than the number of teeth of the second transmission gear, and the number of helical teeth of the second bevel gear is less than the number of helical teeth of the first bevel gear.

[0012] In one embodiment, the left and right swinging components include a second rotating disk, a second rotating shaft, a linear sliding ring, a reciprocating guide rod, a sliding guide block, a fixed block, a chain belt, a sprocket, a rotating column, a planar thrust bearing, and a rotating table. The lower end of the rotating shaft is fixedly connected to the second rotating disk after passing through the test platform. The lower end edge of the second rotating disk is fixedly connected to the second rotating shaft. The second rotating shaft is respectively connected by sliding sleeves in the linear sliding ring. The reciprocating guide rod is fixedly connected to one side of the middle of the linear sliding ring. A number of fixed blocks are respectively fixedly connected to both sides of the lower end of the test platform. The lower ends of the fixed blocks are fixedly connected to The sliding guide block has a sliding guide groove at the lower end, the reciprocating guide rod is slidably connected in the sliding guide groove, the other end of the reciprocating guide rod is fixedly connected to the two ends of the chain belt, the chain belt is connected around the outside of the sprocket, the middle part of the sprocket is fixedly connected with a rotating column, the upper end of the rotating column passes through the test platform and is fixedly connected to the rotating table, the rotating column is rotatably connected to the test platform, the upper end of the rotating table is fixedly connected with a lower clamping block, the test platform at the lower end of the rotating table is provided with an installation groove, a plane thrust bearing is fixedly connected in the installation groove, and the upper end of the plane thrust bearing is fixedly connected to the rotating table.

[0013] In one of the embodiments, two sets of mounting feet are fixedly connected to both sides of the lower end of the lower clamping block, and a mounting slot hole is opened on one side of the edge of the mounting foot plate. A mounting screw hole is opened on the rotating table opposite to the mounting slot hole, and the mounting bolts pass through the mounting slot hole and are threadedly connected in the mounting screw hole.

[0014] The beneficial effects of the present invention are as follows: the device can realize horizontal radial testing of automobile bushings through the left and right swing components, and can realize vertical diameter testing of automobile bushings through the up and down swing components, thus solving the problem that the prior art can only perform testing in one direction, saving the time of the test, being easy to operate, and being reliable in the test. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0019] Figure 5 It is a schematic diagram of the connection structure of the left and right swing components of the present invention;

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

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

[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 limit block, 209 first limit groove, 210 second limit block, 211 second limit groove, 212 mounting foot plate, 213 mounting slot hole, 214 mounting screw hole, 3 left and right swing components, 301 second rotating disk, 302 second rotating shaft, 303 linear sliding sleeve ring, 304 reciprocating guide rod, 305 sliding guide block, 306 fixing block, 307 chain belt, 308 sprocket, 309 rotating column, 310 plane thrust bearing, 311 rotating table, 312 mounting groove, 4 up and down swing components, 401 side guide frame, 402 upper cover plate, 403 sliding block, 404 connecting bearing, 405 shaft sleeve, 406 connecting rod, 407 first rotating disk, 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 invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-7A dynamic testing device for the durability of an automobile bushing comprises a test platform 1, a bushing fixture 2, a left-right swing assembly 3, an up-down swing assembly 4, and a transmission assembly 5. The upper end of the test platform 1 is connected with the left-right swing assembly 3, and the bushing fixture 2 is fixedly connected to the left-right swing assembly 3. When in use, the left-right swing assembly 3 can drive the bushing fixture 2 to swing left-right, and the swing amplitude is greater than 10° and less than 30°, that is, the sum of the maximum rotation angle of the bushing fixture 2 to the right and the maximum rotation angle to the left. The bushing fixture 2 is fixedly connected with an automobile bushing 6, and the center of the automobile bushing 6 is The connecting sleeve 7 is connected to the center of the vehicle. During the test, the connecting shaft 8 rotates synchronously with the connecting sleeve 7. During the rotation, the connecting sleeve 7 rubs against the inner ring of the automobile bushing 6, so that the wear of the automobile bushing 6 can be detected. The connecting shaft 8 is fixedly connected inside the connecting sleeve 7. One end of the connecting shaft 8 is connected to the up and down swinging component 4. The up and down swinging component 4 can swing one end of the connecting shaft 8 up and down. The up and down swinging component 4 is installed on the test platform 1 on one side of the left and right swinging components 3. The other end of the connecting shaft 8 is fixedly connected to the universal joint 9. The other end of the universal joint 9 is fixedly connected to the driving shaft 10. During the up and down swinging of one end of the connecting shaft 8 by the universal joint 9, the connecting shaft 8 and the driving shaft 10 are connected. During the test, during the up and down swinging of one end of the connecting shaft 8, the other end of the connecting shaft 8 realizes relative rotation through the universal joint 9, which can prevent the lever movement with the automobile bushing 6 as the fulcrum during the up and down swinging of the other end of the connecting shaft 8, resulting in repeated bending of the driving shaft 10 connected to the connecting shaft 8, causing metal fatigue and fracture of the driving shaft 10. After the universal joint 9 is added, an angle tilt can occur at the universal joint 9, thereby avoiding the driving shaft 1 0 repeatedly bends and causes metal fatigue. The drive shaft 10 passes through the two sets of mounting plates 11 in sequence and is connected to the first drive motor 12. The first drive motor 12 is fixedly connected to the mounting seat 13. The mounting seat 13 is fixedly connected to the test platform 1. The two sets of mounting plates 11 are fixedly connected to the test platform 1, and the two sets of mounting plates 11 are located between the first drive motor 12 and the left and right swing components 3. A transmission component 5 is arranged between the two sets of mounting plates 11. The transmission component 5 is connected to the drive shaft 10 in a transmission manner. At the same time, the transmission component 5 is connected to the left and right swing components 3 at the lower end of the test platform 1 in a transmission manner.

[0025] In one embodiment, the lower 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 support blocks 15 for fixed support of the overall structure of the device.

[0026] In one embodiment, the bushing fixing device 2 includes 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 components 3. A fixing groove 205 is relatively opened between the lower clamping block 201 and the upper clamping block 202. The fixing groove 205 between the upper clamping block 202 and the lower clamping block 201 is combined to form a fixing groove 205 hole. The automobile bushing 6 is relatively fixed in the fixing groove 205 hole. A semicircular gasket 204 is arranged between the fixing 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 fixing groove 205, and two groups of through holes 206 are respectively penetrated on the upper clamping block 202 on both sides of the fixing groove 205. After the screw column 203 passes through the through hole 206, it is threadedly connected with a fastening nut 207 for achieving relative fixation of the automobile bushing 6.

[0027] In one of the embodiments, a first limit block 208 is fixedly connected to one corner of the upper end of the lower clamping block 201, a first limit groove 209 is opened at the other diagonal corner of the upper end of the lower clamping block 201, a second limit block 210 is fixedly connected to one corner of the lower end of the upper clamping block 202, a second limit groove 211 is opened at the other diagonal corner of the upper clamping block 202, the first limit block 208 is snap-connected in the second limit groove 211, and the second limit block 210 is snap-connected in the first limit groove 209, which are used to limit the installation position of the upper clamping block 202 and the lower clamping block 201 to prevent the upper clamping block 202 and the lower clamping block 201 from being installed incorrectly.

[0028] In one embodiment, the up and down swing assembly 4 includes a side guide frame 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 disk 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 guide frames 401, the upper end of the side guide frame 401 is fixedly connected with the upper cover plate 402, and the sliding block 403 is slidably connected between the two groups of side guide frames 401. A bearing sleeve 411 is fixedly connected to one side of the sliding block 403, and a bearing sleeve 411 is fixedly connected inside the bearing sleeve 411. The connecting shaft 8 is provided with a bearing 404, and a shaft sleeve 405 is fixedly connected to the center of the connecting shaft 8 bearing 404. One end of the connecting shaft 8 is sleeved and connected in the shaft sleeve 405. A rotating groove 412 is provided at the lower end of the sliding block 403, and a connecting rod 406 is rotatably connected in the rotating groove 412. A movable slot hole 413 is provided on the test platform 1 opposite to the rotating slot 412, and the connecting rod 406 is movably connected in the movable slot hole 413. A second driving motor 410 is fixedly connected to the lower end of the test platform 1 on one side of the movable slot hole 413, and a first rotating disk 407 is fixedly connected to the rotating shaft of the second driving motor 410. The first rotating disk 407 is fixedly connected to the rotating shaft of the second driving motor 410. 07 is fixedly connected with a first rotating shaft 408 on one side of the edge, and a rotating sleeve 409 is connected to the sliding sleeve on the first rotating shaft 408. One end of the linkage rod 406 passes through the movable slot 413 and is fixedly connected to the rotating sleeve 409. When in use, the second driving motor 410 drives the first rotating disk 407 to rotate, and at the same time, the first rotating shaft 408 on the first rotating disk 407 performs a circular motion. The first rotating shaft 408 drives one end of the linkage rod 406 to perform a circular motion through the rotating sleeve 409. When the rotating sleeve 409 moves to the bottom of the first rotating disk 407, the length of the linkage rod 406 remains unchanged. The other end of the linkage rod 406 drives the sliding block 403 to move to the lowest position of the side guide frame 401. When the rotating sleeve 409 moves to the uppermost end of the first rotating disk 407, the linkage rod 406 pushes the sliding block 403 to move upward to the highest point of the side guide frame 401. As the rotating sleeve 409 repeatedly makes circular motions, the sliding block 403 is driven to continuously reciprocate up and down under the action of the linkage rod 406, and the connecting shaft 8 bearing 404 connected to the sliding block 403 drives one end of the connecting shaft 8 to move up and down repeatedly through the shaft sleeve 405, thereby realizing the vertical diameter durability test of the automobile bushing 6.

[0029] In one embodiment, the transmission assembly 5 includes a driving 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 driving gear 501 is fixedly connected to the driving shaft 10 between the two groups of mounting plates 11. The first transmission gear 502 is respectively meshed and connected on both sides of the driving gear 501. The first transmission gear 502 is symmetrical about the driving gear 501. The first transmission gear 502 is rotatably connected to one side of a group of mounting plates 11. The first transmission gear 502 is respectively meshed and connected with the second transmission gear 503. A transmission shaft 507 is fixedly connected on the center line of the second transmission gear 503. Both ends of the transmission shaft 507 are respectively rotatably connected to the opposite mounting plates 11. The first bevel gears 504 are respectively fixedly connected to the transmission shaft. The first bevel gears 504 are respectively meshed and connected with the second bevel gears 505. The second bevel gears 505 are respectively fixedly connected There is a rotating shaft 508, the lower end of which passes through the test platform 1 and is transmission-connected to the left and right swing components 3. A shaft sleeve plate 506 is rotatably connected to the rotating shaft 508 above the test platform 1, and one end of the shaft sleeve plate 506 is fixedly connected to another set of mounting plates 11. The shaft sleeve plate 506 is used to relatively support the rotating shaft 508 to improve the stability of the rotating shaft 508 during rotation. When in use, the second drive motor 410 drives the drive shaft 10 to rotate, and 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 respectively, and the first transmission gear 502 drives the second transmission gear 503 connected on one side to rotate respectively. The second transmission gear 503 drives the first bevel gear 504 to rotate through the transmission shaft 507, and the first bevel gear 504 drives the second bevel gear 505 to rotate. The second bevel gear 505 drives the rotating shaft 508 to rotate, and the rotating shaft 508 transmits power to the left and right swing components 3.

[0030] In one embodiment, the first bevel gear 504 and the second bevel gear 505 are both curved 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, and 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, and 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 to the second bevel gear 505 is greater than the driving shaft 10. In the present invention, 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 swinging assembly 3 includes a second rotating disk 301, a second rotating shaft 302, a linear sliding ring 303, a reciprocating guide rod 304, a sliding guide block 305, a fixed block 306, a chain belt 307, a sprocket 308, a rotating column 309, a plane thrust bearing 310, and a rotating table 311. The lower end of the rotating shaft 508 passes through the test platform 1 and is fixedly connected to the second rotating disk 301. The lower end edge of the second rotating disk 301 is fixedly connected to the second rotating shaft 302. The second rotating shaft 302 is respectively slidably connected in the linear sliding ring 303. The middle side of the linear sliding ring 303 is fixedly connected to the reciprocating guide rod 30 4. A plurality of fixed blocks 306 are fixedly connected to both sides of the lower end of the test platform 1. The lower ends of the fixed blocks 306 are fixedly connected to the sliding guide blocks 305. The lower ends of the sliding guide blocks 305 are provided with sliding guide grooves. The reciprocating guide rods 304 are slidably connected in the sliding guide grooves. The other ends of the reciprocating guide rods 304 are fixedly connected to the two ends of the chain belt 307. The chain belt 307 is connected around the outside of the sprocket 308. The middle part of the sprocket 308 is fixedly connected with a rotating column 309. The upper end of the rotating column 309 passes through the test platform 1 and is fixedly connected to the rotating table 311. The rotating column 309 is rotatably connected to the test platform 1. The upper end of the rotating table 311 is fixedly connected with the lower clamping block 201. A mounting groove 312 is provided on the test platform 1 at the lower end of the rotating table 311, and a plane thrust bearing 310 is fixedly connected in the mounting groove 312. The upper end of the plane thrust bearing 310 is fixedly connected to the rotating table 311. When in use, the rotating shaft 508 drives the second rotating disk 301 to rotate, and the second rotating plate drives the second rotating shaft 302 to make a circular motion. In the present invention, when one group of the second rotating shafts 302 is located at the leftmost position of the second rotating disk 301, the second rotating shaft 302 of the other group is at the rightmost position of the other group of the second rotating disk 301. In addition, in this structure, the two groups of rotating shafts 508 and the second rotating disk 301 are The rotation direction is consistent, so in the reciprocating motion of the second rotating shaft 302, the linear sliding ring 303 drives the reciprocating guide rod 304 to perform linear reciprocating motion, and the movement directions of the two groups of reciprocating guide rods 304 are always opposite. The other end of the reciprocating guide rod 304 drives the chain belt 307 to pull and pull. Each time the chain belt 307 is pulled and pulled, it will drive the sprocket 308 to rotate forward and reverse once, and each rotation angle is the size of the swing amplitude of the bushing fixing device 2. At this time, the sprocket 308 drives the rotating table 311 to swing relative to each other through the rotating column 309, and the rotating table 311 drives the bushing fixing device 2 to swing relative to each other, thereby realizing the horizontal radial durability test of the automobile bushing 6.

[0033] In one of the embodiments, two sets of mounting feet 212 are fixedly connected to both sides of the lower end of the lower clamping block 201, and a mounting slot 213 is provided on one side of the edge of the mounting foot 212. A mounting screw hole 214 is provided on the rotating table 311 opposite to the mounting slot 213. The mounting bolts pass through the mounting slot 213 and are threadedly connected in the mounting screw hole 214, so as to facilitate the disassembly and assembly of the bushing fixing device 2.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dynamic testing device for automobile bushing durability, comprising a testing platform (1), a bushing fixing device (2), a left-right swinging assembly (3), an up-and-down swinging assembly (4), and a transmission assembly (5), characterized in that: The upper end of the test platform (1) is connected to a left-right swing assembly (3), a bushing fixing device (2) is fixedly connected to the left-right swing assembly (3), a car bushing (6) is fixedly connected inside the bushing fixing device (2), a connecting sleeve (7) is connected to the center of the car bushing (6), a connecting shaft (8) is fixedly connected inside the connecting sleeve (7), one end of the connecting shaft (8) is connected to an up-and-down swing assembly (4), the up-and-down swing assembly (4) is mounted on the test platform (1) on one side of the left-and-right swing assembly (3), the other end of the connecting shaft (8) is fixedly connected to a universal joint (9), the other end of the universal joint (9) is fixedly connected to a drive shaft (10), the The drive shaft (10) passes through the two groups of mounting plates (11) in sequence and is connected to the first drive motor (12); the first drive motor (12) is fixedly connected to the mounting seat (13); the mounting seat (13) is fixedly connected to the test platform (1); the two groups of mounting plates (11) are fixedly connected to the test platform (1), and the two groups of mounting plates (11) are located between the first drive motor (12) and the left and right swing components (3); a transmission component (5) is arranged between the two groups of mounting plates (11); the transmission component (5) is transmission-connected to the drive shaft (10); and at the same time, the transmission component (5) is transmission-connected to the left and right swing components (3) at the lower end of the test platform (1).

2. The dynamic detection device for automobile bushing durability according to claim 1 is characterized in that: The lower edge and corner positions of the test platform (1) are respectively fixedly connected with support legs (14), and the lower ends of the support legs (14) are fixedly connected with support foot blocks (15).

3. The dynamic detection device for automobile bushing durability according to claim 1 is characterized in that: 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 swinging components (3); a fixing groove (205) is relatively provided between the lower clamping block (201) and the upper clamping block (202); the fixing groove (205) between the upper clamping block (202) and the lower clamping block (201) is combined to form a fixing groove (205) hole; the automobile bushing (6) The fixing groove (205) is relatively fixed in the hole of the fixing groove (205), and a semicircular gasket (204) is arranged between the fixing groove (205) and the automobile bushing (6). Two groups of screw columns (203) are fixedly connected to the lower clamping blocks (201) located on both sides of the fixing groove (205), and two groups of through holes (206) are respectively penetrated on the upper clamping blocks (202) located on both sides of the fixing groove (205). After the screw columns (203) pass through the through holes (206), they are threadedly connected to fastening nuts (207).

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

5. The dynamic detection device for automobile bushing durability according to claim 1 is characterized in that: The up-and-down swing assembly (4) comprises a side guide frame (401), an upper cover plate (402), a sliding block (403), a connecting shaft (8) bearing (404), a shaft sleeve (405), a linkage rod (406), a first rotating disk (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 guide frames (401), the upper end of the side guide frame (401) is fixedly connected with the upper cover plate (402), a sliding block (403) is slidably connected between the two groups of side guide frames (401), one side of the sliding block (403) is fixedly connected with a bearing sleeve (411), the inner part of the bearing sleeve (411) is fixedly connected with a connecting shaft (8) bearing (404), the center of the connecting shaft (8) bearing (404) is fixedly connected with a shaft sleeve (405), one end of the connecting shaft (8) The sliding block (403) is sleeve-connected in the shaft sleeve (405), a rotating groove (412) is provided at the lower end of the sliding block (403), a connecting rod (406) is rotatably connected in the rotating groove (412), a movable slot hole (413) is provided on the test platform (1) opposite to the rotating groove (412), the connecting rod (406) is movably connected in the movable slot hole (413), a second driving motor (410) is fixedly connected to the lower end of the test platform (1) on one side of the movable slot hole (413), a first rotating disk (407) is fixedly connected to the rotating shaft of the second driving motor (410), a first rotating shaft (408) is fixedly connected to one side of the edge of the first rotating disk (407), a rotating sleeve (409) is connected to the sliding sleeve on the first rotating shaft (408), and one end of the connecting rod (406) passes through the movable slot hole (413) and is fixedly connected to the rotating sleeve (409).

6. The dynamic detection device for automobile bushing durability according to claim 1 is characterized in that: The transmission assembly (5) comprises a driving 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 driving gear (501) is fixedly connected to the driving shaft (10) between the two groups of mounting plates (11). The two sides of the driving gear (501) are respectively meshed with the first transmission gears (502). The first transmission gears (502) are symmetrical with respect to the driving gear (501). The first transmission gear (502) is rotatably connected to one side of a group of mounting plates (11). The first transmission gear (502) is respectively meshed with the second transmission gears (503). A transmission shaft (507) is fixedly connected to the center line of the movable gear (503), and two ends of the transmission shaft (507) are respectively rotatably connected to the opposite mounting plates (11). The transmission shaft is respectively fixedly connected to the first bevel gear (504), and the first bevel gear (504) is respectively meshedly connected to the second bevel gear (505). The second bevel gear (505) is respectively fixedly connected to a rotating shaft (508). The lower end of the rotating shaft (508) passes through the test platform (1) and is transmission-connected to the left and right swing components (3). A shaft sleeve plate (506) is rotatably connected to the rotating shaft (508) above the test platform (1), and one end of the shaft sleeve plate (506) is fixedly connected to another group of mounting plates (11).

7. The dynamic detection device for automobile bushing durability according to claim 6 is characterized in that: The first bevel gear (504) and the second bevel gear (505) are both curved bevel gears.

8. The dynamic detection device for automobile bushing durability according to claim 7 is characterized in that: 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), the number of helical teeth of the first bevel gear (504) is greater than the number of teeth of the second transmission gear (503), and 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).

9. The dynamic detection device for automobile bushing durability according to claim 4 is characterized in that: The left-right swing assembly (3) comprises a second rotating disk (301), a second rotating shaft (302), a linear sliding ring (303), a reciprocating guide rod (304), a sliding guide block (305), a fixed block (306), a chain belt (307), a sprocket (308), a rotating column (309), a planar thrust bearing (310), and a rotating table (311); the lower end of the rotating shaft (508) is fixedly connected to the second rotating disk (301) after passing through the test platform (1); the lower end edge of the second rotating disk (301) is fixedly connected to the second rotating shaft (302); the second rotating shaft (302) is respectively slidably connected in the linear sliding ring (303); the reciprocating guide rod (304) is fixedly connected to one side of the middle of the linear sliding ring (303); a plurality of fixed blocks (306) are respectively fixedly connected to both sides of the lower end of the test platform (1); the lower ends of the fixed blocks (306) are fixedly connected to the sliding guide blocks (306); The slide guide blocks (305) are provided with slide guide grooves at the lower ends of the slide guide blocks (305), the reciprocating guide rods (304) are respectively slidably connected in the slide guide grooves, the other ends of the reciprocating guide rods (304) are respectively fixedly connected to the two ends of the chain belt (307), the chain belt (307) is connected around the outside of the sprocket wheel (308), the middle part of the sprocket wheel (308) is fixedly connected with a rotating column (309), the upper end of the rotating column (309) passes through the test platform (1) and is connected to the test platform (1) The rotating table (311) is fixedly connected, the rotating column (309) is rotatably connected to the test platform (1), the upper end of the rotating table (311) is fixedly connected to a lower clamping block (201), a mounting groove (312) is provided on the test platform (1) at the lower end of the rotating table (311), a plane thrust bearing (310) is fixedly connected in the mounting groove (312), and the upper end of the plane thrust bearing (310) is fixedly connected to the rotating table (311).

10. The dynamic detection device for automobile bushing durability according to claim 9, characterized in that: Two sets of mounting foot plates (212) are fixedly connected to both sides of the lower end of the lower clamping block (201), and a mounting slot hole (213) is provided on one side of the edge of the mounting foot plate (212). A mounting screw hole (214) is provided on the rotating platform (311) opposite to the mounting slot hole (213), and the mounting bolt passes through the mounting slot hole (213) and is threadedly connected in the mounting screw hole (214).

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