Special tool for checking and verifying strength of bead of tire bead
By designing special tools for tire port bead strength inspection and verification, and using torque detection and deformation measurement methods, the convenience of tire port bead strength detection is solved, ensuring vehicle safety and reducing maintenance costs.
Patent Information
- Application Number
- CN202510347385.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2025-07-11
AI Technical Summary
The existing technology lacks convenient tools to detect the tire port bead strength, resulting in the inability to detect insufficient strength in time, affecting the vehicle handling and safety, posing safety hazards and increasing maintenance costs.
Design a special tool for tire port bead strength verification, including handle, connecting rod, torque adjustment switch, torque display, torque ratchet connector, tool head support, fixed shaft and digital display dial table, to achieve rapid detection through torque detection and deformation measurement.
实现了轮胎子口胎圈强度的快速检测,消除质量隐患,减少车辆维修和保养成本,提高行驶安全性和稳定性。
Smart Images
Figure CN120293722A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of tire detection tools, and more specifically to a special tool for inspecting and verifying the strength of the bead of a tire. Background Art
[0002] As is well known, in daily life, people's work and life are inseparable from the operation of various vehicles. As an important component for transmitting traction, braking torque, and load-bearing, the tire ensures good adhesion between the wheel and the road surface, and can also prevent automotive components from being severely vibrated and damaged prematurely, thereby improving the vehicle's power performance and braking performance, so as to improve driving safety, handling stability, and comfort, etc. The main function of the bead of the tire is to support the carcass layer and strengthen the lower part of the tire side, so as to cooperate with the vehicle's rim. As well as bearing the tensile force and weight generated by the internal pressure, it is also a key part to overcome the lateral force suffered by the tire during cornering. The importance of its strength requirements is self-evident. In the traditional production and manufacturing process, only bead strength calculation or test is carried out in design or laboratory, and there is no separate convenient tool for inspecting and verifying the strength of the bead. If the bead strength is insufficient and cannot be detected and found in time, resulting in early damage to the tire, it will directly affect the handling and stability of the vehicle during driving. In extreme cases, it may directly cause a tire blowout, posing a serious threat to driving safety, with great potential safety hazards and increasing the vehicle's maintenance cost and maintenance cost. Summary of the Invention
[0003] In order to overcome the deficiencies of the prior art, the present invention provides a special tool for inspecting and verifying the strength of the bead of a tire to timely detect the strength performance of the bead.
[0004] The technical solution adopted by the present invention to solve its technical problems is: a special tool for inspecting and verifying the strength of the bead of a tire, provided with a handle. Its feature is that a connecting rod is provided at the end of the handle, a torque adjustment switch and a torque display are provided between the handle and the connecting rod, a torque ratchet connector is provided at the lower end of the connecting rod, the lower side of the torque ratchet connector is connected to the tool head bracket, a set of 1# fixed shaft and 2# fixed shaft are respectively installed on both sides of the tool head bracket, a 1# rotating shaft and a 2# rotating shaft are installed outside the 1# fixed shaft and the 2# fixed shaft, a deformation digital display dial indicator bracket is provided at the middle position of the tool head bracket, and a digital display dial indicator is fixedly placed on the deformation digital display dial indicator bracket.
[0005] The torque display is provided with a power switch and a setting button. The setting button can adjust the torque size and has the function of switching between torque N.m and Kgf.cm.
[0006] The digital display dial indicator is adjusted within the range of 0 - 25 mm.
[0007] The described torque ratchet connector is designed with a square structure and can be adjusted by 90°.
[0008] The beneficial effects of the present invention are as follows: During the process of verifying the bead strength of the tire bead, the special tool is clamped on the tire bead part. When the torque reaches the standard setting and becomes disabled after pressing the handle, according to the measurement and display of the distance between the probe of the digital display dial indicator and the bead part, the data is compared with the process standard data, so as to timely detect the strength performance of the bead, eliminate quality risks and potential safety hazards, which is convenient and fast. Thus, the damage risk caused by the quality hidden danger of insufficient bead strength of the tire is eliminated, and the vehicle maintenance cost and maintenance cost are reduced. Brief Description of the Drawings
[0009] The present invention will be further described below in conjunction with the drawings and embodiments.
[0010] Figure 1 Schematic diagram of the use state of the present invention.
[0011] Figure 2 Schematic diagram of the structure of the present invention.
[0012] In the figure, 1. Tire, 2. Tire bead, 3. Deformation of tire bead, Z. Special tool, Z1. Handle, Z2. Connecting rod, Z3. Torque adjustment switch, Z4. Torque display, Z5. Torque ratchet connector, Z6. Tool head support, Z7-1. 1# fixed shaft, Z7-2. 1# rotating shaft, Z8-1. 2# fixed shaft, Z8-2. 2# rotating shaft, Z9. Deformation digital display dial indicator support, Z10. Digital display dial indicator, Z11. Fastening wire for digital display dial indicator support. Detailed Embodiment
[0013] In the figure, the present invention is provided with a handle Z1. At the end of the handle Z1, there is a connecting rod Z2. Between the handle Z1 and the connecting rod Z2, there are a torque adjustment switch Z3 and a torque display Z4. The torque display Z4 is provided with a power switch and a setting button. Besides ensuring normal power on and off, the setting button can adjust the torque magnitude and can switch between torque N.m and Kgf.cm. At the lower end of the connecting rod Z2, there is a torque ratchet connector Z5. The torque ratchet connector Z5 is designed with a square structure and can be adjusted by 90° according to the height of different detection positions to ensure that the measurement distance is within the travel range of the digital display dial indicator. The lower side of the torque ratchet connector Z5 is connected to the tool head support Z6. On both sides of the tool head support Z6, a set of 1# fixed shaft Z7-1 and 2# fixed shaft Z8-1 are respectively installed. On the outside of the 1# fixed shaft Z7-1 and 2# fixed shaft Z8-1, 1# rotating shaft Z7-2 and 2# rotating shaft Z8-2 are installed to reduce the phenomenon of damage to the tire bead caused by the friction between the tool head and the sub-bead of the tire during the use of the special tool. At the middle position of the tool head support Z6, there is a deformation digital display dial indicator support Z9. A digital display dial indicator Z10 is fixedly placed on the deformation digital display dial indicator support Z9. The digital display dial indicator Z10 can be adjusted between 0-25 mm, and the height of the fixed position of the digital display dial indicator Z10 can be finely adjusted through the digital display dial indicator support fastening screw Z11 to ensure that the travel distance during the measurement meets the requirements of the process standard.
[0014] The specific operation is as follows: Place the tire 1 on the detection platform and use the mechanical claw to spread and fix the bead of the inner tire. At the same time, take out the special tool Z from the tool box and place it on the detection platform. Turn on the torque adjustment switch Z3 on the special tool Z, and adjust the set parameter of the torque display Z4 to the process standard through the increase and decrease keys. Hold the handle Z1 of the special tool Z, and place the 2# fixed shaft Z8-1 and the 2# rotating shaft Z8-2 inside the bead of the inner tire 2 of the tire 1. At the same time, place the 1# fixed shaft Z7-1 and the 1# rotating shaft Z7-2 outside the bead of the inner tire 2 of the tire 1. Place the digital display dial indicator Z10 in the deformation amount digital display dial indicator bracket Z9 and fix the digital display dial indicator Z10 through the fastening wire Z11 of the digital display dial indicator bracket. Fine-tune according to the position height and perform zero adjustment of the digital display dial indicator Z10. Connect the torque ratchet connector Z5 with the tool head bracket Z6, press the handle Z1, drive the torque ratchet connector Z5 and the tool head bracket Z6 through the connecting rod Z2, apply an upward force to the 2# fixed shaft Z8-1 and the 2# rotating shaft Z8-2, and apply a downward force to the 1# fixed shaft Z7-1 and the 1# rotating shaft Z7-2. During the lifting and pressing process, the 1# rotating shaft Z7-2 and the 2# rotating shaft Z8-2 rotate while transmitting the radial force, reducing the wear and damage to the bead of the inner tire 2 of the tire 1. When the torque of the special tool Z reaches the set value and becomes disabled, the position of the deformation amount 3 of the bead of the inner tire will push the digital display dial indicator Z10 to the highest point, and then automatically retain the highest value. Compare it with the standard data. After the detection is completed, slightly lift the handle Z1, separate the torque ratchet connector Z5 and the tool head bracket Z6, turn off the power supply of the torque adjustment switch Z3 of the torque display Z4, and place it in the tool box. Then loosen the fastening wire Z11 of the digital display dial indicator bracket, take out the digital display dial indicator Z10 from the deformation amount digital display dial indicator bracket Z9, place it in the case of the digital display dial indicator Z10, remove the tool head, open the mechanical claw of the tire 1, and take the tire 1 off the detection platform, completing the entire detection and verification process. It can be conveniently and quickly spot-checked and verified at any time to ensure that the bead of the inner tire 2 of the tire 1 meets the process design standard, avoid the quality hidden danger of insufficient strength of the bead of the inner tire 2, eliminate the risk of early damage, and reduce the vehicle maintenance cost and maintenance cost.
[0015] The present invention provides a special tool for inspecting and verifying the strength of the bead of a tire. By combining the structure of the bead of the tire and the items to be detected, and using a digital torque wrench as the main tool, a special detection head is designed and combined and improved with the characteristic principle of a digital dial indicator, and a special tool for inspecting and verifying the strength of the bead of the tire is designed. When in use, only need to adjust and set according to the torques of different strength specifications of the laboratory standard data, place the special tool on the bead part of the tire, press the handle, when the torque reaches the standard setting and becomes disabled, according to the measurement and display of the distance between the probe of the digital dial indicator and the bead part, compare the data with the process standard data, and can timely discover the strength performance of the bead of the tire, eliminate quality risks and potential safety hazards, and is convenient and fast.
Claims
1. A special tool for inspecting and verifying the strength of a tire bead, provided with a handle, characterized in that A connecting rod is provided at the end of the handle. A torque adjustment switch and a torque display are provided between the handle and the connecting rod. A torque ratchet connector is provided at the lower end of the connecting rod. The lower side of the torque ratchet connector is connected to the tool head bracket. A set of 1# fixed shaft and 2# fixed shaft are respectively installed on both sides of the tool head bracket. A 1# rotating shaft and a 2# rotating shaft are installed outside the 1# fixed shaft and the 2# fixed shaft. A deformation digital display dial indicator bracket is provided at the middle position of the tool head bracket. A digital display dial indicator is fixedly placed on the deformation digital display dial indicator bracket. The torque display is provided with a power switch and a setting button. The setting button can adjust the torque size and can switch between torque N.m and Kgf.cm. The digital display dial indicator is adjusted between 0 - 25 mm.
2. The special tool for testing and verifying the strength of the bead of a tire according to claim 1, characterized in that The torque ratchet connector is designed with a square structure and can be adjusted by 90°.