CN113607435B - Radial tire production finished product performance testing device - Google Patents
Radial tire production finished product performance testing device Download PDFInfo
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- CN113607435B CN113607435B CN202111173729.5A CN202111173729A CN113607435B CN 113607435 B CN113607435 B CN 113607435B CN 202111173729 A CN202111173729 A CN 202111173729A CN 113607435 B CN113607435 B CN 113607435B
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- 238000012360 testing method Methods 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000009778 extrusion testing Methods 0.000 claims abstract description 9
- 210000001503 joint Anatomy 0.000 claims description 28
- 238000001125 extrusion Methods 0.000 claims description 24
- 238000003825 pressing Methods 0.000 claims description 13
- 230000008520 organization Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 239000011324 bead Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention relates to the technical field of tire production, in particular to a device for testing the performance of a radial tire production finished product, which comprises a base, a fixed rotating mechanism and an extrusion testing mechanism, wherein the upper end of the base is provided with the fixed rotating mechanism and the extrusion testing mechanism; the invention tests the air tightness of the tire by simulating the stress condition of the tire in the normal running process of the automobile, and tests the air tightness of the tire by reducing the friction between the test end and the tire rotating at high speed and simulating the contact between a ground bulge and the tire; the invention prevents the tires from being mutually collided by a mode of assembling and then testing, and simultaneously improves the efficiency of tire testing operation.
Description
Technical Field
The invention relates to the technical field of tire production, in particular to a device for testing the performance of a radial tire production finished product.
Background
A radial tire is a pneumatic tire in which the cords from one bead to the other bead of the carcass ply are aligned at an angle of substantially 90 ° to the tread centerline; the main stressed component of the radial tire is a belt ply, and a plurality of triangular mesh structures are formed by crossing a tire body cord and a belt ply cord from three directions. Therefore, the tire crown has higher rigidity than the bias tire, the tire cord layer has less rigidity than the bias tire, and the tire side is softer and lighter than the bias tire.
In the production process of radial tires, various performance tests are often required for radial tires, wherein the following problems are present in testing the air tightness of radial tires: in the prior art, when the air tightness performance of a radial tire is tested, the test is often carried out in a manner of extruding the tire, but the stress condition of the tire in rotation cannot be simulated by the manner, so that the air tightness performance of the tire and broken stones in rotation extrusion in actual driving of an automobile cannot be determined; when the prior art tests a plurality of tires simultaneously, the tires are often rotated to different degrees due to certain friction of the extrusion end to the tires, so that relative rotation occurs between the tires which are fixed together, and then the tire sidewalls are rubbed with each other, and the problems of abrasion of the tire sidewalls and the like occur.
Disclosure of Invention
In order to solve the above problems, the present invention is specifically realized by the following technical solutions: a radial tire production finished product performance testing device comprises a base, a fixed rotating mechanism and an extrusion testing mechanism, wherein the upper end of the base is provided with the fixed rotating mechanism and the extrusion testing mechanism; the tire fixing and rotating device comprises a base, a fixing and rotating mechanism and a tire fixing module, wherein the fixing and rotating mechanism comprises a placing frame, a driving motor, a butt joint round frame, a driving cylinder, a feeding plate, a rotating pressing plate and a tire fixing module; the tire and the tire fixing module are combined and fixed firstly in a manual or mechanical auxiliary mode, then the plurality of tire fixing modules are combined into a whole and then are installed on the butt joint circular frame, the driving cylinder pushes the feeding plate to feed leftwards, so that the tire fixing module is extruded and fixed through the rotating pressing plate, the tire fixing module is prevented from being separated from each other during rotation test, and then the plurality of tires can be driven to rotate at high speed through the driving motor.
The extrusion testing mechanism comprises a lifting frame, a rotating roller, a driven belt, a contact plate, a driving module, a testing frame, a sliding frame, an extrusion spring and a testing module, wherein the lifting frame is arranged between the inner walls of the left end and the right end of the base in a sliding mode; the fixed module equipment of tire is fixed the back, drive module drives the test jig and feeds to the center, drive the crane simultaneously and upwards feed, extrude high-speed rotatory tire through the touch panel, the friction that the surface received when driven belt reduces the tire rotation, the test jig drives test module and supports tight tire surface, the extrusion of conflict board to the tire has simulated the tire and has received the sight of car dead weight and ground extrusion each other, test module has then simulated the extrusion atress condition of car between tire and the ground arch in the driving process.
Preferably, the tire fixing module comprises a fixing circular plate, a butt joint thread column, a fixing thread column, a locking plate, a locking nut and a rotating sleeve plate, the fixing thread column is evenly arranged at the left end of the fixing circular plate along the circumferential direction and connected with a butt joint circular frame in a sliding mode, the butt joint thread column is inserted into the left end of the fixing circular plate in a rotating mode, the locking plate is connected with the fixing thread column in a sliding mode, the locking nut is connected with the fixing thread column in a threaded connection mode, and the rotating sleeve plate is arranged at the right end of the butt joint thread column. The butt joint threaded column and the fixed threaded column penetrate through a tire hub, the tire is locked and fixed through the matching of the locking threads and the locking plate, the fixed threaded column is inserted into the matching hole groove, and the rotating sleeve plate is screwed to enable the butt joint threaded column to be locked and combined with the threaded circular groove. Thereby respectively combining the tire fixing module and combining the tire fixing module with the butt joint round frame in a clamping manner.
Preferably, the right ends of the rotating sleeve plate and the butt joint round frame are both provided with thread round grooves, and the butt joint thread column is connected with the thread round grooves in a threaded connection mode.
Preferably, the right ends of the fixed circular plate and the butt joint circular frame are uniformly provided with matching hole grooves along the circumferential direction, and the fixed threaded column is connected with the matching hole grooves in a sliding mode.
Preferably, the drive module include auxiliary motor, L type feed frame, rotating gear, driven pinion rack and feed screw, auxiliary motor sets up on base lower extreme inner wall, L type feed frame sets up at the test jig lower extreme, L type feed frame passes the sliding tray lateral wall, the auxiliary motor output is provided with rotating gear, L type feed frame looks remote site all is provided with driven pinion rack, driven pinion rack meshes with rotating gear mutually, the rotating gear upper end is provided with feed screw, feed screw is connected with the crane through threaded connection mode. The auxiliary motor drives the rotary gear to rotate, the lifting frame is driven to upwards feed through the feed screw to enable the abutting plate to extrude the lower surface of the tire, and meanwhile the L-shaped feed frame and the test frame are driven to feed to the center through the matching of the rotary gear and the driven toothed plate to enable the test module to abut against the tire.
Preferably, the driven toothed plates are distributed along the center of the axis of the rotary gear in a central symmetry manner.
Preferably, the test module include test motor, rotating cam, slip revolving rack and extrusion wheel, be provided with test motor on the carriage lower extreme inner wall, the test motor upper end is provided with rotating cam, the carriage is close to driven belt's one end and turns right from a left side and evenly slides and be provided with the slip revolving rack, it is provided with the extrusion wheel to rotate between the both ends inner wall about the slip revolving rack. The test motor drives the rotating cam to rotate, so that the tire end face rotating at a high speed is repeatedly extruded through the extrusion wheel, contact between the tire and the ground protrusion is further simulated, and meanwhile, the tire surface cannot be subjected to overlarge friction force due to the rotatable characteristic of the extrusion wheel.
Preferably, one side of the sliding rotating frame, which is close to the rotating cam, is provided with a limit baffle, and a return spring is arranged between one end, which is far away from the rotating cam, of the limit baffle and the inner side wall of the sliding frame.
The invention has the beneficial effects that: 1. the invention tests the air tightness of the tire by simulating the stress condition of the tire in the normal running process of the automobile, and tests the air tightness of the tire by reducing the friction between the test end and the tire rotating at high speed and simulating the contact between a ground bulge and the tire; the invention prevents the tires from being mutually collided by a mode of assembling and then testing, and simultaneously improves the efficiency of tire testing operation.
2. After the tire is assembled and fixed, the driving module drives the testing frame to feed towards the center and simultaneously drives the lifting frame to feed upwards, the tire rotating at high speed is extruded through the abutting plate, the driven belt reduces the friction force borne by the surface of the tire when the tire rotates, the testing frame drives the testing module to abut against the outer surface of the tire, the extrusion of the tire by the abutting plate simulates the situation that the tire is extruded by the self weight of an automobile and the ground, and the testing module simulates the condition of extrusion stress between the tire and a ground bulge during the driving process of the automobile.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic top view of the present invention.
FIG. 3 is a schematic structural view of the section A-A in FIG. 2 according to the present invention.
FIG. 4 is a schematic structural view of the section B-B in FIG. 2 according to the present invention.
Fig. 5 is a schematic view of the construction of the tire fixing module according to the present invention.
Fig. 6 is a schematic structural view of a fixed circular plate and a butt threaded column in the present invention.
Fig. 7 is a schematic structural view of the docking cradle and the tire fixing module according to the present invention.
In the figure: 1. a base; 2. a fixed rotation mechanism; 21. placing a rack; 22. a drive motor; 23. butting the round frames; 24. a driving cylinder; 25. a feed plate; 26. rotating the pressing plate; 27. a tire securing module; 271. fixing the circular plate; 272. butting the threaded columns; 273. fixing the threaded column; 274. a locking plate; 275. locking the nut; 276. rotating the sleeve plate; 3. a squeezing test mechanism; 31. a lifting frame; 32. a rotating roller; 33. a driven belt; 34. a touch plate; 35. a drive module; 351. an auxiliary motor; 352. an L-shaped feed carriage; 353. a rotating gear; 354. a driven toothed plate; 355. a feed screw; 36. a test jig; 37. a carriage; 38. a compression spring; 39. a test module; 391. testing the motor; 392. rotating the cam; 393. sliding the rotating frame; 394. and (4) extruding the wheel.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1, fig. 2, fig. 3 and fig. 5, a radial tire production finished product performance testing device comprises a base 1, a fixed rotating mechanism 2 and an extrusion testing mechanism 3, wherein the fixed rotating mechanism 2 and the extrusion testing mechanism 3 are arranged at the upper end of the base 1; the fixed rotating mechanism 2 comprises a placing frame 21, a driving motor 22, a butt-joint round frame 23, a driving air cylinder 24, a feeding plate 25, a rotating pressing plate 26 and a tire fixing module 27, the placing frame 21 is arranged on the left side of the upper end of the base 1, the driving motor 22 is arranged at the left end of the placing frame 21, the butt-joint round frame 23 is arranged at the right end of the output end of the driving motor 22, a feeding groove is formed in the upper end of the base 1, the driving air cylinder 24 is arranged on the inner wall of the right end of the feeding groove, the feeding plate 25 is arranged at the left end of the driving air cylinder 24, the rotating pressing plate 26 is rotatably arranged at the left end of the feeding plate 25, and the tire fixing module 27 is connected with the butt-joint round frame 23 in a clamping manner; the tire and the tire fixing module 27 are combined and fixed firstly in a manual or mechanical auxiliary mode, then the plurality of tire fixing modules 27 are combined into a whole and then are installed on the butt joint round frame 23, the driving cylinder 24 pushes the feeding plate 25 to feed leftwards, so that the tire fixing module 27 is extruded and fixed through the rotating pressing plate 26, the tire fixing modules are prevented from being separated from each other during the rotation test, and then the plurality of tires can be driven to rotate at high speed through the driving motor 22.
Referring to fig. 5, 6 and 7, the tire fixing module 27 includes a fixed circular plate 271, a butt threaded column 272, a fixed threaded column 273, a locking plate 274, a locking nut 275 and a rotating sleeve plate 276, the fixed threaded column 273 is uniformly arranged at the left end of the fixed circular plate 271 along the circumferential direction, the fixed threaded column 273 is connected with the butt circular frame 23 in a sliding manner, the butt threaded column 272 is rotatably inserted into the left end of the fixed circular plate 271, the locking plate 274 is connected with the fixed threaded column 273 in a sliding manner, the locking nut 275 is connected with the fixed threaded column 273 in a threaded manner, the rotating sleeve plate 276 is arranged at the right end of the butt threaded column 272, and a groove in concave-convex fit with the rotating sleeve plate 276 is formed at the left end of the rotating pressing plate 26. The right ends of the rotating sleeve plate 276 and the butt joint round frame 23 are both provided with thread round grooves, and the butt joint thread column 272 is connected with the thread round grooves in a thread connection mode. The right ends of the fixed circular plate 271 and the butt circular frame 23 are uniformly provided with matching hole grooves along the circumferential direction, and the fixed threaded column 273 is connected with the matching hole grooves in a sliding manner. The butt joint threaded column 272 and the fixed threaded column 273 penetrate through the hub of the tire, the tire is locked and fixed between the locking plate 274 and the fixed circular plate 271 through the matching of the locking nut 275 and the locking plate 274, the fixed threaded column 273 is inserted into the matching hole groove, and the butt joint threaded column 272 and the threaded circular groove are locked and combined through screwing the rotating sleeve plate 276, so that the tire fixing module 27 is combined with each other and the tire fixing module 27 is combined with the butt joint circular frame 23 in a clamping mode.
Referring to fig. 3, the pressing test mechanism 3 includes a lifting frame 31, a rotating roller 32, a driven belt 33, an interference plate 34, the device comprises a driving module 35, a testing frame 36, a sliding frame 37, an extrusion spring 38 and a testing module 39, wherein a lifting frame 31 is arranged between the inner walls of the left end and the right end of a base 1 in a sliding mode, a rotating roller 32 is symmetrically arranged between the inner walls of the left end and the right end of the lifting frame 31 in a front-back rotating mode, a driven belt 33 is sleeved on the outer wall of the rotating roller 32, a contact plate 34 is arranged between the inner walls of the left end and the right end of the lifting frame 31, the inner wall of the lower end of the base 1 is provided with the driving module 35, the upper end of the base 1 is symmetrically provided with a sliding groove in a front-back manner, the testing frame 36 is connected with the sliding groove in a sliding mode, the sliding frame 37 is arranged at the opposite end of the testing frame 36 in a left-to-right sliding mode, the extrusion spring 38 is arranged between one end of the sliding frame 37, which is far away from the driven belt 33, and the testing module 39 is arranged in the sliding frame 37; the fixed module 27 equipment of tire is fixed the back, drive module 35 drives test jig 36 and feeds to the center, drive crane 31 and upwards feed simultaneously, extrude the tire of high-speed rotation through touch panel 34, driven belt 33 has reduced the frictional force that the surface received when the tire is rotatory, test jig 36 drives test module 39 and supports tight tire surface, the extrusion of touch panel 34 to the tire has simulated the tire and has received the scene of car dead weight and ground extrusion each other, test module 39 then simulates the extrusion atress condition of car between tire and the ground arch in the driving process.
Referring to fig. 3 and 4, the driving module 35 includes an auxiliary motor 351, an L-shaped feeding frame 352, a rotary gear 353, a driven toothed plate 354 and a feed screw 355, the auxiliary motor 351 is disposed on the inner wall of the lower end of the base 1, the L-shaped feeding frame 352 is disposed at the lower end of the testing frame 36, the L-shaped feeding frame 352 passes through the side wall of the sliding groove, the driven toothed plate 354 is disposed at the opposite end of the L-shaped feeding frame 352, the rotary gear 353 is disposed at the output end of the auxiliary motor 351, and the driven toothed plates 354 are symmetrically distributed along the center of the axis of the rotary gear 353. The driven toothed plate 354 is meshed with the rotating gear 353, the upper end of the rotating gear 353 is provided with a feed screw 355, and the feed screw 355 is connected with the lifting frame 31 in a threaded connection mode. The auxiliary motor 351 drives the rotating gear 353 to rotate, so that the lifting frame 31 is driven to feed upwards through the feed screw 355, the lower surface of the tire is extruded by the abutting plate 34, and meanwhile, the L-shaped feed frame 352 and the test frame 36 are driven to feed towards the center through the matching of the rotating gear 353 and the driven toothed plate 354, so that the test module 39 abuts against the tire tightly.
Referring to fig. 4, the testing module 39 includes a testing motor 391, a rotating cam 392, a sliding rotating frame 393 and a squeezing wheel 394, the testing motor 391 is arranged on the inner wall of the lower end of the sliding frame 37, the rotating cam 392 is arranged at the upper end of the testing motor 391, the sliding rotating frame 393 is arranged at one end of the sliding frame 37 close to the driven belt 33 and slides from left to right, and the squeezing wheel 394 is arranged between the inner walls of the left end and the right end of the sliding rotating frame 393 in a rotating manner. A limit baffle is arranged on one side of the sliding rotating frame 393 close to the rotating cam 392, and a return spring is arranged between one end of the limit baffle far away from the rotating cam 392 and the inner side wall of the sliding frame 37. The test motor 391 drives the rotating cam 392 to rotate, so that the end face of the tire rotating at high speed is repeatedly pressed by the pressing wheel 394, the contact between the tire and a ground bump is simulated, and meanwhile, the tire surface cannot be subjected to excessive friction due to the rotatable characteristic of the pressing wheel 394.
The working principle is as follows: firstly, the tyre and the tyre fixing module 27 are combined and fixed in a manual or mechanical auxiliary mode, then a plurality of tyre fixing modules 27 are combined into a whole and then are installed on the butt-joint round frame 23, the driving cylinder 24 pushes the feeding plate 25 to feed leftwards, so that the tyre fixing module 27 is extruded and fixed by the rotating pressing plate 26, then the driving motor 22 drives a plurality of tyres to rotate at high speed simultaneously, the driving module 35 drives the testing frame 36 to feed towards the center, the lifting frame 31 is driven to feed upwards, the tyre rotating at high speed is extruded by the abutting plate 34, the friction force borne by the surface when the tyre rotates is reduced by the driven belt 33, the testing frame 36 drives the testing module 39 to abut against the outer surface of the tyre, the extrusion of the abutting plate 34 to the tyre simulates the situation that the tyre is extruded by the self weight of the automobile and the ground, the testing module 39 simulates the extrusion stress between the tyre and the ground bulge during the running of the automobile, whether the air tightness is qualified or not can be judged by comparing the values of the tire air pressure before and after the test.
The foregoing shows and describes the general principles, principal features and advantages of the invention; it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a radial tire production finished product capability test device, includes base (1), fixed rotary mechanism (2) and extrusion accredited testing organization (3), its characterized in that: the upper end of the base is provided with a fixed rotating mechanism and an extrusion testing mechanism; the fixed rotating mechanism (2) comprises a placing frame (21), a driving motor (22), a butt joint round frame (23), a driving cylinder (24), a feeding plate (25), a rotating pressing plate (26) and a tire fixing module (27), wherein the placing frame (21) is arranged on the left side of the upper end of the base (1), the driving motor (22) is arranged at the left end of the placing frame (21), the butt joint round frame (23) is arranged at the right end of the output end of the driving motor (22), a feeding groove is formed in the upper end of the base (1), the driving cylinder (24) is arranged on the inner wall of the right end of the feeding groove, the feeding plate (25) is arranged at the left end of the driving cylinder (24), the rotating pressing plate (26) is rotatably arranged at the left end of the feeding plate (25), and the tire fixing module (27) is connected with the butt joint round frame (23) in a clamping mode;
the tire fixing module (27) comprises a fixing circular plate (271), a butt joint thread column (272), a fixing thread column (273), a locking plate (274), a locking nut (275) and a rotating sleeve plate (276), wherein the fixing thread column (273) is uniformly arranged at the left end of the fixing circular plate (271) along the circumferential direction, the fixing thread column (273) is connected with a butt joint circular frame (23) in a sliding mode, the butt joint thread column (272) is rotatably inserted at the left end of the fixing circular plate (271), the locking plate (274) is connected with the fixing thread column (273) in a sliding mode, the locking nut (275) is connected with the fixing thread column (273) in a threaded connection mode, and the rotating sleeve plate (276) is arranged at the right end of the butt joint thread column (272);
the extrusion testing mechanism (3) comprises a lifting frame (31), a rotating roller (32), a driven belt (33), a collision plate (34), a driving module (35), a testing frame (36), a sliding frame (37), an extrusion spring (38) and a testing module (39), wherein the lifting frame (31) is arranged between the inner walls of the left end and the right end of the base (1) in a sliding mode, the rotating roller (32) is symmetrically arranged between the inner walls of the left end and the right end of the lifting frame (31) in a front-back rotating mode, the driven belt (33) is sleeved on the outer wall of the rotating roller (32), the collision plate (34) is arranged between the inner walls of the left end and the right end of the lifting frame (31), the driving module (35) is arranged on the inner wall of the lower end of the base (1), sliding grooves are symmetrically arranged at the front side and the back of the upper end of the base (1), the testing frame (36) is connected with the sliding grooves in a sliding mode, and the sliding frame (37) is arranged at the opposite end of the testing frame (36) in a right sliding mode, an extrusion spring (38) is arranged between one end of the sliding frame (37) far away from the driven belt (33) and the test frame (36), and a test module (39) is arranged in the sliding frame (37);
the testing module (39) comprises a testing motor (391), a rotating cam (392), a sliding rotating frame (393) and an extrusion wheel (394), wherein the testing motor (391) is arranged on the inner wall of the lower end of the sliding frame (37), the rotating cam (392) is arranged at the upper end of the testing motor (391), the sliding rotating frame (393) is arranged at one end, close to the driven belt (33), of the sliding frame (37) in a sliding mode from left to right, and the extrusion wheel (394) is arranged between the inner walls of the left end and the right end of the sliding rotating frame (393) in a rotating mode.
2. The radial tire production product performance testing device of claim 1, wherein: the right ends of the rotating sleeve plate (276) and the butt joint round frame (23) are both provided with thread round grooves, and the butt joint thread column (272) is connected with the thread round grooves in a thread connection mode.
3. The radial tire production product performance testing device of claim 1, wherein: the right ends of the fixed circular plate (271) and the butt joint circular frame (23) are uniformly provided with matching hole grooves along the circumferential direction, and the fixed threaded column (273) is connected with the matching hole grooves in a sliding mode.
4. The radial tire production product performance testing device of claim 1, wherein: drive module (35) include auxiliary motor (351), L type feed frame (352), rotating gear (353), driven pinion rack (354) and feed screw (355), auxiliary motor (351) set up on base (1) lower extreme inner wall, L type feed frame (352) set up at test jig (36) lower extreme, L type feed frame (352) pass the sliding tray lateral wall, auxiliary motor (351) output is provided with rotating gear (353), L type feed frame (352) looks remote site all is provided with driven pinion rack (354), driven pinion rack (354) and rotating gear (353) mesh mutually, rotating gear (353) upper end is provided with feed screw (355), feed screw (355) are connected with crane (31) through threaded connection mode.
5. The radial tire production product performance testing device of claim 4, wherein: the driven toothed plates (354) are distributed along the center of the axis of the rotating gear (353) in a central symmetry manner.
6. The radial tire production product performance testing device of claim 1, wherein: one side of the sliding rotating frame (393) close to the rotating cam (392) is provided with a limit baffle, and a return spring is arranged between one end of the limit baffle, which is far away from the rotating cam (392), and the inner side wall of the sliding frame (37).
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| CN202111173729.5A CN113607435B (en) | 2021-10-09 | 2021-10-09 | Radial tire production finished product performance testing device |
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| CN113607435B true CN113607435B (en) | 2021-12-07 |
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