Tire fixing device in tire vertical rigidity test

Abstract

A tire fixing device in a tire vertical rigidity test relates to the technical field of tires, and comprises an operation table, the bottom of the operation table is fixedly connected with supporting legs, the top of the operation table is provided with a fixing auxiliary device, the fixing auxiliary device comprises a supporting plate, the bottom of the supporting plate is fixedly connected to the top of the operation table, and the supporting plate is fixedly connected to the bottom of the operation table. According to the utility model, through the mutual cooperation of the motor, the bidirectional screw rod, the threaded sleeve and other components in the fixing auxiliary device, the relative movement of the two clamping plates is realized, so that the tire can be ensured to be uniformly and stably clamped in the testing process, and the testing efficiency is improved. The device is relatively simple to operate, the test efficiency is improved, and the operation difficulty and error rate of operators are reduced, so that the tire cannot move or slide in the test period, and the test accuracy and reliability are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and particularly relates to a tire fixing device in a tire vertical stiffness test. Background Art

[0002] In tire vertical stiffness testing, the design and function of the tire fixing device is very critical. It is usually used to fix the tire to ensure that the tire does not move or slide during the test, thereby ensuring the accuracy and repeatability of the test results.

[0003] According to the publicly disclosed tire fixing device in the tire vertical stiffness test (publication number: CN 104280250 A), it includes a top plate, a movable plate, a hydraulic cylinder, two side plates, a bottom plate and four support columns; the top plate, the movable plate, the two side plates and the bottom plate are all rectangular, and the four corners of the top plate and the four corners of the bottom plate are fixedly connected through the four support columns; the four corners of the movable plate are provided with four through holes for the support columns to pass through, and can slide on the four support columns; the base of the hydraulic cylinder is fixed on the movable plate and the top is fixed on the top plate. When the tire is undergoing a stiffness test, if it is not clamped and fixed, it may slide or move during the test, which will lead to inaccurate test results. Through the mutual cooperation between the above-mentioned top plate, movable plate, hydraulic cylinder and other components, it is difficult to ensure that the tire is clamped evenly and firmly during the test, and it is difficult to ensure the accuracy and reliability of the test, which needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a tire fixing device in a tire vertical stiffness test. By means of the mutual cooperation between components such as a motor, a bidirectional lead screw, and a threaded sleeve inside a fixing auxiliary device, relative movement of two clamping plates is achieved, thereby ensuring that the tire is clamped evenly and firmly during the test. The operation of the device is relatively simple, the efficiency of the test is improved, and the operating difficulty and error rate of the operator are reduced. In this way, the tire will not move or slide during the test, thereby ensuring the accuracy and reliability of the test and solving the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a tire fixing device for a tire vertical stiffness test, comprising an operating table, the bottom of the operating table is fixedly connected with a supporting leg, the top of the operating table is provided with a fixing auxiliary device, the fixing auxiliary device comprises a supporting plate, the bottom of the supporting plate is fixedly connected to the top of the operating table, the side of the supporting plate is fixedly connected with a cross bar, the top of the cross bar is fixedly connected with an L-shaped rod, the bottom of the L-shaped rod is fixedly connected with an electric telescopic rod, the end of the electric telescopic rod away from the L-shaped rod is fixedly connected with a tester, the side of the supporting plate is fixedly connected with a short plate, the side of the short plate is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a bidirectional screw rod, the circumferential surface of the bidirectional screw rod is threadedly connected with a threaded sleeve, the side of the motor is fixedly connected with a limiting rod, the end of the limiting rod away from the motor passes through the side of the threaded sleeve, the side of the threaded sleeve is fixedly connected with a moving plate, and the side of the moving plate is fixedly connected with a clamping plate.

[0007] Furthermore, a protective pad is fixedly connected to the side of the clamping plate, and two threaded sleeves and clamping plates are provided, and are symmetrical to each other along the vertical center axis of the bidirectional screw rod. The threaded sleeves move towards each other, which will drive the two movable plates to move, and the movement of the two movable plates will drive the two clamping plates to move relative to each other.

[0008] Furthermore, the protection pad is made of rubber material, and a plurality of legs are provided, which are arranged in groups of two and are symmetrical to each other along the vertical center axis of the operating table. The design of the protection pad is conducive to preventing the tire from being damaged when clamping the tire.

[0009] Furthermore, a hydraulic cylinder is fixedly connected to the top of the operating table, a push rod 1 passes through one end of the hydraulic cylinder, a push rod 2 passes through the end of the hydraulic cylinder away from the push rod 1, a push plate is fixedly connected to the end of the push rod 2 away from the hydraulic cylinder, and an extrusion rod is fixedly connected to the bottom of the threaded sleeve, the extrusion rod will squeeze the push rod 1, and the push rod 1 will move toward the inside of the hydraulic cylinder when squeezed, pushing the piston inside the hydraulic cylinder to move, the piston will push the internal liquid to move, the liquid will push the push rod 2 at the other end, and the push of the push rod 2 will drive the push plate to be pushed on the operating table.

[0010] Furthermore, the push rod one is located on the displacement track of the extrusion rod, two hydraulic cylinders are provided, and are symmetrical to each other along the vertical center axis of the bidirectional screw rod. The push rod one is located on the movement track of the extrusion rod, and the extrusion rod will squeeze the push rod one.

[0011] Furthermore, a spring is fixedly sleeved on the circumferential surface of the push rod 1, and one end of the spring away from the push rod 1 is fixedly connected to the side of the hydraulic cylinder. The design of the spring is conducive to automatic reset of the push rod 1 when the push rod 1 is not squeezed.

[0012] Furthermore, a slot is provided on the top of the operating table, a collection box is fixedly connected to the bottom of the operating table, a switch door is hinged on the side of the collection box, and the collection box is located on the displacement track of the tire, thereby automatically pushing the tested tires into the collection box, and the automated processing saves the operator's time and labor.

[0013] The utility model has the following beneficial effects:

[0014] The utility model realizes the relative movement of the two clamping plates through the mutual cooperation between the internal motor, the bidirectional lead screw, the threaded sleeve and other components of the fixing auxiliary device, so as to ensure that the tire is clamped evenly and firmly during the test. The operation of the device is relatively simple, which improves the efficiency of the test and reduces the operating difficulty and error rate of the operator. In this way, the tire will not move or slide during the test, thereby ensuring the accuracy and reliability of the test.

[0015] The utility model realizes that the push rod 2 will drive the push plate to push on the operating table through the mutual cooperation among the components such as the hydraulic cylinder, the push rod 1, the push rod 2 and the push plate of the fixed auxiliary device. At this time, the tire is in a state of having been tested, and the tested tire on the operating table can be pushed away. The collection box is located on the displacement track of the tire, so that the tested tire can be automatically pushed into the collection box. The automated processing saves the time and labor of the operator and improves the efficiency and continuity of the entire testing process. The design of the push plate on the operating table enables the tested tire to be smoothly moved to the collection box, thereby ensuring the orderly collection and processing of the tire and reducing the need for manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0017] Figure 2 It is a three-dimensional side view structural diagram of the support plate of the utility model;

[0018] Figure 3 It is a three-dimensional enlarged structural schematic diagram of the bidirectional screw rod of the utility model;

[0019] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the hydraulic cylinder of the utility model;

[0020] Figure 5 For this utility model Figure 3 Schematic diagram of the three-dimensional enlarged structure of A in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Operating table; 2. Outriggers; 3. Fixing auxiliary equipment; 31. Support plate; 32. Cross bar; 33. L-shaped rod; 34. Electric telescopic rod; 35. Tester; 36. Short plate; 37. Motor; 38. Bidirectional screw rod; 39. Threaded sleeve; 310. Limit rod; 311. Moving plate; 312. Clamping plate; 313. Protective pad; 314. Extrusion rod; 315. Hydraulic cylinder; 316. Push rod one; 317. Push rod two; 318. Spring; 319. Push plate; 320. Notch; 321. Collection box; 4. Open and close the door. DETAILED DESCRIPTION

[0023] A tire fixing device in a tire vertical stiffness test comprises an operating platform 1, a support leg 2 is fixedly connected to the bottom of the operating platform 1, a fixing auxiliary device 3 is arranged on the top of the operating platform 1, and the fixing auxiliary device 3 comprises a support plate 31, the bottom of the support plate 31 is fixedly connected to the top of the operating platform 1, a cross bar 32 is fixedly connected to the side of the support plate 31, an L-shaped rod 33 is fixedly connected to the top of the cross bar 32, an electric telescopic rod 34 is fixedly connected to the bottom of the L-shaped rod 33, and an end of the electric telescopic rod 34 away from the L-shaped rod 33 is fixedly connected There is a tester 35, a short plate 36 is fixedly connected to the side of the support plate 31, a motor 37 is fixedly connected to the side of the short plate 36, a bidirectional screw 38 is fixedly connected to the output shaft of the motor 37, a threaded sleeve 39 is threadedly connected to the circumferential surface of the bidirectional screw 38, a limiting rod 310 is fixedly connected to the side of the motor 37, one end of the limiting rod 310 away from the motor 37 passes through the side of the threaded sleeve 39, a moving plate 311 is fixedly connected to the side of the threaded sleeve 39, and a clamping plate 312 is fixedly connected to the side of the moving plate 311.

[0024] A protective pad 313 is fixedly connected to the side of the clamping plate 312. Two threaded sleeves 39 and clamping plates 312 are provided, and are symmetrical to each other along the vertical center axis of the bidirectional screw rod 38. The threaded sleeves 39 move toward each other, which will drive the two movable plates 311 to move, and the movement of the two movable plates 311 will drive the two clamping plates 312 to move relative to each other.

[0025] The protection pad 313 is made of rubber material. There are a plurality of legs 2 arranged in groups of two and symmetrical with each other along the vertical center axis of the operating platform 1. The design of the protection pad 313 is conducive to preventing the tire from being damaged when clamping the tire.

[0026] A hydraulic cylinder 315 is fixedly connected to the top of the operating table 1. A push rod 1 316 runs through one end of the hydraulic cylinder 315. A push rod 2 317 runs through the end of the hydraulic cylinder 315 away from the push rod 1 316. A push plate 319 is fixedly connected to the end of the push rod 2 317 away from the hydraulic cylinder 315. An extrusion rod 314 is fixedly connected to the bottom of the threaded sleeve 39. The extrusion rod 314 will squeeze the push rod 1 316. The push rod 1 316 will move toward the inside of the hydraulic cylinder 315 when squeezed, pushing the piston inside the hydraulic cylinder 315 to move. The piston will push the internal liquid to move, and the liquid will push out the push rod 2 317 at the other end. The push of the push rod 2 317 will drive the push plate 319 to push on the operating table 1.

[0027] Push rod 1 316 is located on the displacement track of extrusion rod 314 , two hydraulic cylinders 315 are provided, and are symmetrical to each other along the vertical center axis of bidirectional screw rod 38 , push rod 1 316 is located on the movement track of extrusion rod 314 , and extrusion rod 314 will squeeze push rod 1 316 .

[0028] A spring 318 is fixedly sleeved on the circumferential surface of the push rod 316, and one end of the spring 318 away from the push rod 316 is fixedly connected to the side of the hydraulic cylinder 315. The design of the spring 318 is conducive to automatically resetting the push rod 316 when the push rod 316 is not squeezed.

[0029] A slot 320 is provided on the top of the operating platform 1, and a collection box 321 is fixedly connected to the bottom of the operating platform 1. A switch door 4 is hinged on the side of the collection box 321. The collection box 321 is located on the displacement track of the tire, so that the tested tires will be automatically pushed into the collection box 321. The automated processing saves the operator's time and labor.

[0030] A specific application of this embodiment is: this application uses the motor 37, the motor 37 rotates forward, which will drive the bidirectional screw rod 38 to rotate forward, the bidirectional screw rod 38 rotates forward, the two threaded sleeves 39 move toward each other, the threaded sleeves 39 move toward each other, the two moving plates 311 move, the two moving plates 311 move, the two clamping plates 312 move relative to each other, the tire is placed in the middle of the two clamping plates 312, when the two clamping plates 312 move relative to each other, the left and right sides of the tire can be clamped, and then the electric telescopic rod 34 is started to extend it downward. , the tester 35 is placed next to the tire to test the rigidity of the tire. The relative movement of the two clamping plates 312 can ensure that the tire is clamped evenly and firmly during the test. The operation of the device is relatively simple, which improves the efficiency of the test and reduces the difficulty and error rate of the operator. In this way, the tire will not move or slide during the test, ensuring the accuracy and reliability of the test. When the test is completed and the tire does not need to be clamped any more, the motor 37 is reversed, and the reversal of the motor 37 will drive the two-way The screw rod 38 is reversed, driving the two threaded sleeves 39 to do opposite movement. When the threaded sleeve 39 moves, it will drive the extrusion rod 314 to move. The push rod 1 316 is located on the movement trajectory of the extrusion rod 314. The extrusion rod 314 will squeeze the push rod 1 316. The push rod 1 316 will be squeezed and move into the hydraulic cylinder 315, pushing the piston inside the hydraulic cylinder 315 to move. The piston will push the internal liquid to move, and the liquid will push the push rod 2 317 at the other end. The push of the push rod 2 317 will drive the push plate 319 to push on the operating table 1. When the tire is in a state of having been tested, the tested tire on the operating table 1 can be pushed away. The collection box 321 is located on the displacement track of the tire, so that the tested tire will be automatically pushed into the collection box 321. The automated processing saves the operator's time and labor and improves the efficiency and continuity of the entire testing process. The design of the push plate 319 on the operating table 1 enables the tested tire to be smoothly moved to the collection box 316, ensuring the orderly collection and processing of the tire and reducing the need for manual intervention.

Claims

1. A tire fixing device for a tire vertical stiffness test, comprising an operating table (1), characterized in that: The bottom of the operating table (1) is fixedly connected to a support leg (2), and the top of the operating table (1) is provided with a fixing auxiliary device (3); The fixing auxiliary device (3) comprises a support plate (31), the bottom of the support plate (31) is fixedly connected to the top of the operating table (1), the side of the support plate (31) is fixedly connected to a cross bar (32), the top of the cross bar (32) is fixedly connected to an L-shaped rod (33), the bottom of the L-shaped rod (33) is fixedly connected to an electric telescopic rod (34), one end of the electric telescopic rod (34) away from the L-shaped rod (33) is fixedly connected to a tester (35), and the side of the support plate (31) is fixedly connected to a short plate (36), and the short plate (3 6) is fixedly connected to the side of the motor (37), a bidirectional screw rod (38) is fixedly connected to the output shaft of the motor (37), a threaded sleeve (39) is threadedly connected to the circumferential surface of the bidirectional screw rod (38), a limiting rod (310) is fixedly connected to the side of the motor (37), an end of the limiting rod (310) away from the motor (37) passes through the side of the threaded sleeve (39), a moving plate (311) is fixedly connected to the side of the threaded sleeve (39), and a clamping plate (312) is fixedly connected to the side of the moving plate (311).

2. The tire fixing device in the tire vertical stiffness test according to claim 1, characterized in that: A protection pad (313) is fixedly connected to the side of the clamping plate (312), and two threaded sleeves (39) and two clamping plates (312) are provided, and are symmetrical to each other along the vertical center axis of the bidirectional screw rod (38).

3. The tire fixing device in the tire vertical stiffness test according to claim 2, characterized in that: The protection pad (313) is made of rubber material, and a plurality of the legs (2) are provided, arranged in groups of two and symmetrically along the vertical center axis of the operating table (1).

4. The tire fixing device in the tire vertical stiffness test according to claim 3, characterized in that: The top of the operating table (1) is fixedly connected to a hydraulic cylinder (315), one end of the hydraulic cylinder (315) is penetrated by a push rod 1 (316), one end of the hydraulic cylinder (315) away from the push rod 1 (316) is penetrated by a push rod 2 (317), one end of the push rod 2 (317) away from the hydraulic cylinder (315) is fixedly connected to a push plate (319), and the bottom of the threaded sleeve (39) is fixedly connected to an extrusion rod (314).

5. The tire fixing device in the tire vertical stiffness test according to claim 4, characterized in that: The push rod 1 (316) is located on the displacement track of the extrusion rod (314), and two hydraulic cylinders (315) are provided, and are symmetrical to each other along the vertical center axis of the bidirectional screw rod (38).

6. The tire fixing device in the tire vertical stiffness test according to claim 5, characterized in that: A spring (318) is fixedly sleeved on the circumferential surface of the push rod one (316), and one end of the spring (318) away from the push rod one (316) is fixedly connected to the side of the hydraulic cylinder (315).

7. The tire fixing device in the tire vertical stiffness test according to claim 6, characterized in that: The top of the operating table (1) is provided with a notch (320), the bottom of the operating table (1) is fixedly connected to a collection box (321), and the side of the collection box (321) is hinged with a switch door (4).

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