A tire green tire static balance measuring device

Abstract

The utility model discloses a kind of tyre blank static balance measuring devices, it is related to blank static balance measuring equipment technical field, including base, placing tray, support, installation platform, weight sensor, lifting platform and processor, placing tray is located above base, its bottom is connected with base by first lifting mechanism;Support is fixed on base, and installation platform is fixedly connected with support, and it is located above placing tray;Multiple weight sensors are installed on installation platform in circular array, lifting platform is located directly above multiple weight sensors, and its top is installed with multiple clamping claws corresponding one by one on weight sensor in circular array;Synchronous mechanism for driving multiple clamping claws synchronous expansion and contraction is equipped on lifting platform, second lifting mechanism for driving lifting platform to move up and down is equipped on support;The device is in the mode of clamping claw suspension blank, effectively avoid the inaccuracy problem of measurement result caused by local deformation of blank in measurement process.

Description

Technical Field

[0001] This utility model relates to the technical field of tire blank static balance testing equipment, specifically to a tire blank static balance testing device. Background Technology

[0002] Tire static balance quality has a significant impact on vehicle driving safety and comfort. Currently, tire static balance quality can only be obtained through dynamic balance testing of the finished tire after the tire blank has been vulcanized. This is significantly lagging behind the manufacturing process and is extremely detrimental to its quality control and improvement.

[0003] After the tire blank is produced, its static balance quality is basically determined. Under these circumstances, it is essential to develop a tire blank static balance testing device. By sampling and testing the tire blanks, the static balance quality of the batch can be evaluated. Furthermore, based on the measurement results, such as data and angles, the tire blank manufacturing process can be checked and improved to enhance the static balance quality of the tire.

[0004] Uncured tire blanks are softer and more prone to deformation, so the measurement methods used for finished tires cannot be applied. Design must be based on their characteristics. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for measuring the static balance of tire blanks.

[0006] The technical solution of this utility model is: a tire blank static balance measuring device, including a base, a placement tray, a bracket, an installation platform, weight sensors, a lifting platform, and a processor. The placement tray is located above the base, and its bottom is connected to the base through a first lifting mechanism. The bracket is fixed on the base, and the installation platform is fixedly connected to the bracket and is located above the placement tray. Multiple weight sensors are mounted in a circumferential array on the installation platform. The lifting platform is located directly above the multiple weight sensors, and its top is equipped with multiple clamping claws in a circumferential array that correspond one-to-one with the weight sensors. The clamping claws are radially arranged, and their upper connecting parts are slidably connected to the lifting platform, with their clamping ends located below the installation platform. The lifting platform is provided with a synchronization mechanism for driving the multiple clamping claws to extend and retract synchronously. The bracket is provided with a second lifting mechanism for driving the lifting platform to move up and down. The output end of the second lifting mechanism is detachably connected to the lifting platform. The processor is connected to the multiple weight sensors.

[0007] Preferably, the lifting platform is circular and is coaxially arranged with the placement tray; the side wall of the placement tray is a conical surface to facilitate the positioning of the embryo.

[0008] Preferably, the synchronization mechanism includes an internal gear, a synchronization gear, and an adjusting gear rotatably mounted on the lifting platform. Multiple synchronization gears are provided, all of which mesh with the internal gears and correspond one-to-one with the clamping claws. Each clamping claw connection part is fixedly connected with a radial toothed rod, which meshes with the corresponding synchronization gear. The adjusting gear meshes with the internal gear, and its top is connected to an adjusting handwheel.

[0009] Preferably, the lifting platform is provided with a plurality of guide seats in a circular array, each corresponding to a clamping claw, and the connecting part of the clamping claw slides radially through the corresponding guide seat.

[0010] Preferably, a wedge block is fixed at the output end of the second lifting mechanism, a wedge groove adapted to the wedge block is provided at the center of the lifting platform, and a clearance hole corresponding to the wedge block is provided on the mounting platform. After the lifting platform contacts the weight sensor, the wedge block will continue to move down and separate from the wedge groove.

[0011] Preferably, the base is equipped with multiple casters at its bottom.

[0012] Preferably, both the first and second lifting mechanisms are vertically arranged electric push rods, and the base is equipped with a storage battery, which is electrically connected to the electric push rod, the weight sensor, and the processor.

[0013] Compared with the prior art, this utility model has the following advantages: This device effectively avoids inaccurate measurement results caused by local deformation of the tire blank during the measurement process by suspending the tire blank with clamping claws; the expansion and contraction of the clamping claws of this device are realized through a synchronous gear system, which is simple in structure and easy to use; this device directly measures and outputs the static balance value and angle of the tire blank, which can be used to guide the optimization and improvement of the static balance quality during the tire blank production process; this device adopts a movable trolley structure, which can be easily moved and used on site. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the initial state of this utility model; Figure 2 This is a schematic diagram of the embryo grasping state of this utility model; Figure 3 This is a schematic diagram of the load measurement state of this utility model.

[0015] In the diagram: 1. Base, 2. Casters, 3. First lifting mechanism, 4. Placement tray, 5. Tire blank, 6. Bracket, 7. Mounting platform, 701. Clearance hole, 8. Weight sensor, 9. Lifting platform, 10. Clamping claw, 11. Guide seat, 12. Internal gear, 13. Synchronizing gear, 14. Adjusting gear, 15. Adjusting handwheel, 16. Gear rack, 17. Second lifting mechanism, 18. Wedge block, 19. Processor, 20. Battery. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0017] Reference Figure 1 As shown, a tire blank static balance measuring device includes a base 1, a placement tray 4, a support 6, a mounting platform 7, weight sensors 8, a lifting platform 9, and a processor 19. The placement tray 4 is located above the base 1, and its bottom is connected to the base 1 via a first lifting mechanism 3. Its sidewalls are conical surfaces that facilitate the centering of the tire blank 5. The support 6 is fixed to the base 1, and the mounting platform 7 is fixedly connected to the support 6 and is located above the placement tray 4. Three weight sensors 8 are mounted in a circumferential array on the mounting platform 7. The lifting platform 9 is circular and coaxially arranged with the placement tray 4. The lifting platform 9 is located directly above the three weight sensors 8, and its top is arranged in a circumferential array. The device is equipped with three gripping claws 10 that correspond one-to-one with the weight sensors 8. The gripping claws 10 are arranged radially, and their upper connecting parts are slidably connected to the lifting platform 9. Their gripping ends are located below the mounting platform 7. The lifting platform 9 is equipped with a synchronization mechanism for driving the three gripping claws 10 to extend and retract synchronously. The bracket 6 is equipped with a second lifting mechanism 17 for driving the lifting platform 9 to move up and down. The output end of the second lifting mechanism 17 is detachably connected to the lifting platform 9. The processor 19 is connected to the three weight sensors 8. The static balance value and angle of the tire blank 5 are determined by the processor 19 based on the information sent by the three weight sensors 8. This calculation method is a conventional algorithm.

[0018] More specifically, both the first lifting mechanism 3 and the second lifting mechanism 17 are vertically arranged electric push rods, and the base 1 is equipped with a storage battery 20, which is electrically connected to the electric push rod, the weight sensor 8 and the processor 19.

[0019] In addition, the base 1 is equipped with multiple casters 2, which facilitates the movement of the device. Example 2

[0020] As a preferred embodiment of this utility model, this embodiment designs the synchronization mechanism based on Embodiment 1, specifically as follows: The synchronization mechanism includes an internal gear 12, a synchronization gear 13, and an adjusting gear 14 rotatably mounted on the lifting platform 9. There are three synchronization gears 13, all of which mesh with the internal gears 12 and correspond one-to-one with the clamping claws 10. The connecting parts of the clamping claws 10 are all fixedly connected with radial toothed rods 16, which mesh with the corresponding synchronization gears 13. The adjusting gear 14 meshes with the internal gears 12, and its top is connected to an adjusting handwheel 15.

[0021] The lifting platform 9 is provided with three guide seats 11 arranged in a circular array, each corresponding to a clamping claw 10. The connecting part of the clamping claw 10 slides radially through the corresponding guide seat 11.

[0022] When the adjusting handwheel 15 is turned, the adjusting gear 14 drives the internal gear 12 to rotate, and the internal gear 12 drives the three synchronous gears 13 to rotate simultaneously, which in turn drives the three clamping claws 10 to expand or contract synchronously through the three racks 16. Example 3

[0023] As a preferred embodiment of this utility model, this embodiment designs the connection structure between the output end of the second lifting mechanism 17 and the lifting platform 9 based on embodiment two, specifically as follows: The output end of the second lifting mechanism 17 is fixed with a wedge block 18. A wedge groove adapted to the wedge block 18 is opened at the center of the lifting platform 9. A clearance hole 701 corresponding to the wedge block 18 is opened on the mounting platform 7. After the wedge block 18 and the wedge groove fit together, the second lifting mechanism 17 can drive the lifting platform 9 to move up and down. After the lifting platform 9 contacts the weight sensor 8, the wedge block 18 will continue to move down and separate from the wedge groove.

[0024] like Figure 1-3 As shown, the operating procedure of this device is as follows: 1) Adjust the expansion diameter of the clamping jaw 10 by rotating the adjusting handwheel 15 according to the measured inch of the embryo 5.

[0025] 2) Control the output end of the second lifting mechanism 17 to extend downwards, so that the lifting platform 9 falls unloaded onto the three weight sensors 8. The three weight sensors 8 measure and transmit the signals to the processor 19. Then, operate the "set to 0" button on the processor 19 to set it to 0.

[0026] 3) Control the second lifting mechanism 17 to reset, so that the lifting platform 9 returns to the gripping height of the tire blank 5, and rotate the adjusting handwheel 15 to reduce the diameter of the gripping claw 10.

[0027] 4) Place the test embryo 5 on the placement tray 4, and control the output end of the first lifting mechanism 3 to extend upward until the upper opening of the embryo 5 is about 20mm higher than the clamping claw 10.

[0028] 5) Rotate the adjusting handwheel 15 to adjust the expansion diameter of the clamping claw 10 to the position in step 1). At this time, the inlet of the tire blank 5 contacts the clamping end of the clamping claw 10. Control the first lifting mechanism 3 to reset, so that the tire blank 5 is separated from the placement tray 4 and is in a suspended state.

[0029] 6) Control the output end of the second lifting mechanism 17 to extend downwards, so that the lifting platform 9 falls onto the three weight sensors 8 to complete the load measurement. The measurement results can be viewed and recorded on the processor 19.

[0030] 7) Control the second lifting mechanism 17 to reset, so that the lifting platform 9 returns to the gripping height of the tire carcass 5. Control the output end of the first lifting mechanism 3 to extend upward until it supports the tire carcass 5. Rotate the adjusting handwheel 15 to reduce the expansion diameter of the gripping claw 10 to separate it from the tire carcass 5.

[0031] 8) Control the output end of the first lifting mechanism 3 to return downward, and the tire blank 5 and the placement tray 4 return to the base position.

[0032] If the 5-inch size of the embryo remains constant, repeat steps 4)-8) to complete the measurement of multiple embryos. If the size is changed, repeat steps 1)-8) to perform the measurement.

[0033] In summary, this device effectively avoids inaccurate measurement results caused by local deformation of the tire blank 5 during the measurement process by suspending the tire blank 5 with clamping claws 10; the expansion and contraction of the clamping claws 10 are achieved through the synchronous gear system 13, which is simple in structure and easy to use; this device directly measures and outputs the static balance value and angle of the tire blank 5, which can be used to guide the optimization and improvement of the static balance quality during the production process of the tire blank 5; this device adopts a movable trolley structure, which can be easily moved and used on site.

[0034] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A device for determining the static balance of a tire blank, comprising a base, characterized in that: The system also includes a placement tray, a bracket, a mounting platform, weight sensors, a lifting platform, and a processor. The placement tray is located above the base, and its bottom is connected to the base via a first lifting mechanism. The bracket is fixed to the base, and the mounting platform is fixedly connected to the bracket and is located above the placement tray. Multiple weight sensors are mounted in a circumferential array on the mounting platform. The lifting platform is located directly above the multiple weight sensors, and its top is equipped with multiple gripping claws in a circumferential array that correspond one-to-one with the weight sensors. The gripping claws are radially arranged, and their upper connecting parts are slidably connected to the lifting platform, with their gripping ends located below the mounting platform. The lifting platform is provided with a synchronization mechanism for synchronously extending and retracting the multiple gripping claws. The bracket is provided with a second lifting mechanism for moving the lifting platform up and down. The output end of the second lifting mechanism is detachably connected to the lifting platform. The processor is connected to the multiple weight sensors.

2. The tire blank static balance measuring device according to claim 1, characterized in that: The lifting platform is circular and is coaxially arranged with the placement tray; the side wall of the placement tray is a conical surface to facilitate the positioning of the embryo.

3. The tire blank static balance measuring device according to claim 1, characterized in that: The synchronization mechanism includes an internal gear, a synchronization gear, and an adjusting gear rotatably mounted on the lifting platform. There are multiple synchronization gears, all of which mesh with the internal gears and correspond one-to-one with the clamping claws. The connecting parts of the clamping claws are all fixedly connected with radial toothed rods, which mesh with the corresponding synchronization gears. The adjusting gears mesh with the internal gears, and an adjusting handwheel is connected to their tops.

4. The tire blank static balance measuring device according to claim 1, characterized in that: The lifting platform is provided with multiple guide seats arranged in a circular array, each corresponding to a clamping claw. The connecting part of the clamping claw slides radially through the corresponding guide seat.

5. The tire blank static balance measuring device according to claim 1, characterized in that: The output end of the second lifting mechanism is fixed with a wedge block. A wedge groove adapted to the wedge block is opened at the center of the lifting platform. A clearance hole corresponding to the wedge block is opened on the mounting platform. After the lifting platform contacts the weight sensor, the wedge block will continue to move down and separate from the wedge groove.

6. The tire blank static balance measuring device according to claim 1, characterized in that: The base is equipped with multiple casters.

7. The tire blank static balance measuring device according to claim 1, characterized in that: Both the first and second lifting mechanisms are vertically arranged electric push rods. The base is equipped with a storage battery, which is electrically connected to the electric push rod, the weight sensor, and the processor.

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