Special tool for checking and verifying strength of bead of tire bead

Abstract

The utility model relates to a special tool for checking and verifying the strength of a tire bead of a tire bead, belonging to the field of tire detection devices. A connecting rod is arranged at the tail end of the handle, a torsion adjusting switch and a torsion displayer are arranged between the handle and the connecting rod, a torsion ratchet wheel connector is arranged at the lower end of the connecting rod, the lower side of the torsion ratchet wheel connector is connected with a tool head support, and a first fixing shaft and a second fixing shaft are installed on the two sides of the tool head support respectively. A first rotating shaft and a second rotating shaft are installed on the outer side of the first fixing shaft and the outer side of the second fixing shaft, a deformation digital display dial indicator support is arranged in the middle of the tool head support, and a digital display dial indicator is fixedly placed on the deformation digital display dial indicator support. According to the utility model, the strength performance condition of the seam allowance tire bead can be found in time, the quality risk and potential safety hazard are eliminated, and convenience and rapidness are realized, so that the damage risk caused by the potential quality hazard of insufficient strength of the tire seam allowance tire bead is eliminated, and the vehicle repair cost and maintenance cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of tire testing tools, specifically a special tool for testing and verifying the strength of tire beads and tire tapholes. Background Technology

[0002] As we all know, in daily life, people's work and life are inseparable from the operation of various vehicles. Tires, as crucial components that transmit traction, braking torque, and bear load, ensure good adhesion between the wheels and the road surface, and prevent severe vibrations and premature damage to vehicle parts, thereby improving vehicle power and braking performance, and ultimately enhancing driving safety, handling stability, and comfort. The tire bead primarily supports the tire carcass layers and reinforces the lower sidewall to facilitate its fit with the vehicle's rim. Besides bearing the tensile strength and weight generated by internal pressure, it is also a critical component in overcoming the lateral forces experienced by the tire during cornering; the importance of its strength requirements is self-evident. Traditionally, tire bead strength calculations or tests are only conducted in the design or laboratory; there are no convenient tools for verifying bead strength. If insufficient bead strength is not detected in time, premature tire damage will directly affect the vehicle's handling and stability during driving, and in extreme cases, can directly cause a tire blowout, posing a serious threat to driving safety, creating significant safety hazards, and increasing vehicle repair and maintenance costs. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a special tool for testing and verifying the strength of tire beads, so as to promptly detect the strength performance of tire beads.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a special tool for testing and verifying the strength of tire beads, which is provided with a handle. The tool is characterized by having a connecting rod at the end of the handle, a torque adjustment switch and a torque display between the handle and the connecting rod, a torque ratchet connector at the lower end of the connecting rod, the lower side of the torque ratchet connector being connected to the tool head bracket, a set of 1# fixed shaft and 2# fixed shaft respectively installed on both sides of the tool head bracket, a 1# rotating shaft and 2# rotating shaft installed on the outer side of the 1# fixed shaft and 2# fixed shaft, and a deformation amount digital display dial indicator bracket provided in the middle of the tool head bracket, on which a digital display dial indicator is fixedly mounted.

[0005] The torque display is equipped with a power switch and a setting button. The setting button can adjust the torque magnitude and can switch between torque in Nm and Kgf.cm.

[0006] The digital dial indicator is adjustable between 0-25mm.

[0007] The torque ratchet connector has a square structure design and can be adjusted to a 90° angle.

[0008] The beneficial effects of this utility model are that, during the inspection and verification of tire bead strength, a special tool is placed on the tire bead area, and the handle is pressed until the torque reaches the standard setting and the tire fails. The distance between the digital dial indicator probe and the bead area is measured and displayed, and the data is compared with the process standard data. This allows for timely detection of the strength performance of the tire bead, eliminating quality risks and safety hazards. It is convenient and quick, thereby eliminating the risk of damage caused by insufficient tire bead strength and reducing vehicle repair and maintenance costs. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 A schematic diagram of the usage state of this utility model.

[0011] Figure 2 A schematic diagram of the structure of this utility model.

[0012] In the diagram: 1. Tire, 2. Tire bead, 3. Tire bead deformation, Z. Special tool, Z1. Handle, Z2. Connecting rod, Z3. Torque adjustment switch, Z4. Torque display, Z5. Torque ratchet connector, Z6. Tool head bracket, Z7-1.1# fixed shaft, Z7-2.1# rotating shaft, Z8-1.2# fixed shaft, Z8-2.2# rotating shaft, Z9. Deformation digital dial indicator bracket, Z10. Digital dial indicator, Z11. Digital dial indicator bracket fastening screw. Detailed Implementation

[0013] In the figure, the present invention is provided with a handle Z1, and a connecting rod Z2 is provided at the end of the handle Z1. A torque adjustment switch Z3 and a torque display Z4 are provided between the handle Z1 and the connecting rod Z2. The torque display Z4 is provided with a power switch and a setting button. In addition to ensuring normal power on and off, the setting button can adjust the torque and switch between torque Nm and Kgf.cm. A torque ratchet connector Z5 is provided at the lower end of the connecting rod Z2. The torque ratchet connector Z5 has a square structure design and can be adjusted by 90° rotation according to different detection position heights to ensure that the measurement distance is controlled within the stroke range of the digital dial indicator. The lower side of the torque ratchet connector Z5 is connected to the tool head bracket Z6. A set of 1# fixed shaft Z7-1 and 2# fixed shaft Z8-1 are respectively installed on both sides of the tool head bracket Z6. 1# rotating shaft Z7-2 and 2# rotating shaft Z8-2 are installed on the outer side of 1# fixed shaft Z7-1 and 2# fixed shaft Z8-1 to reduce the phenomenon of damage to the tire bead and tire bead caused by friction between the tool head and the tire bead during the use of the special tool. A deformation amount digital dial indicator bracket Z9 is provided in the middle of the tool head bracket Z6. A digital dial indicator Z10 is fixedly mounted on the deformation amount digital dial indicator bracket Z9. The digital dial indicator Z10 is adjustable between 0-25mm, and the height of the fixed position of the digital dial indicator Z10 can be finely adjusted by the fastening screw Z11 of the digital dial indicator bracket to ensure that the travel distance during the measurement process meets the process standard requirements.

[0014] The specific operation is as follows: Place tire 1 on the inspection platform and use the mechanical gripper to open and fix the lower bead of the tire. At the same time, take out the special tool Z from the tool box and place it on the inspection platform. Turn on the torque adjustment switch Z3 on the special tool Z. Adjust the torque setting of the torque display Z4 to the process standard using the increase and decrease keys. Holding the handle Z1 of the special tool Z, place the #2 fixed shaft Z8-1 and the #2 rotating shaft Z8-2 inside the tire bead 2 of tire 1. At the same time, place the #1 fixed shaft Z7-1 and the #1 rotating shaft Z7-2 on the tire bead 2 of tire 1. 2. On the outside, place the digital dial indicator Z10 in the digital dial indicator bracket Z9 with deformation measurement and fix it with the bracket fastening screw Z11. Make fine adjustments according to the height and zero the digital dial indicator Z10. Connect the torque ratchet connector Z5 to the tool head bracket Z6. Press the handle Z1, which drives the torque ratchet connector Z5 and the tool head bracket Z6 through the connecting rod Z2, thus providing an upward force to the #2 fixed shaft Z8-1 and the #2 rotating shaft Z8-2. The #1 fixed shaft Z7-1 and the #1 rotating shaft Z7-2 change The downward pressure is applied, and during the lifting and pressing process, rotating shafts Z7-2 (1#) and Z8-2 (2#) transmit radial force while rotating, reducing wear and damage to the tire bead 2 of tire 1. When the torque of the special tool Z reaches the set value and fails, the tire bead deformation 3 will push the digital dial indicator Z10 to its highest point, automatically retaining the highest value and comparing it with the standard data. After completing the test, slightly lift the handle Z1 to separate the torque ratchet connector Z5 and the tool head bracket Z6, and turn off the torque adjustment switch Z3 of the torque display Z4. Close the device and place it in the toolbox. Then loosen the fastening screw Z11 of the digital dial indicator bracket. Remove the digital dial indicator Z10 from the deformation digital dial indicator bracket Z9 and place it in the dial indicator box of digital dial indicator Z10. Remove the tool head and open the mechanical claw of tire 1 to remove tire 1 from the inspection platform. This completes the entire inspection and verification process. It allows for convenient and quick spot checks and verification at any time to ensure that the tire bead and tire ring 2 of tire 1 meet the process design standards, avoid quality hazards caused by insufficient strength of tire bead and tire ring 2, eliminate the risk of early damage, and reduce vehicle repair and maintenance costs.

[0015] This utility model provides a special tool for testing and verifying the strength of tire beads and tire rings. By combining the structure of the tire bead and tire ring and the items to be tested, it uses a digital torque wrench as the main tool, designs a dedicated testing head, and combines it with the characteristics and principles of a digital dial indicator to create a special tool for testing and verifying the strength of tire beads and tire rings. In use, simply adjust the torque setting according to laboratory standard data for different strength specifications, place the special tool on the tire bead and tire ring, and press the handle. When the torque reaches the standard setting and fails, the distance between the digital dial indicator probe and the bead and tire ring is measured and displayed. Comparing the data with the process standard data allows for timely detection of the strength performance of the tire bead and tire ring, eliminating quality risks and safety hazards, and is convenient and quick.

Claims

1. A tool for verifying the strength of a tire bead at the tire bead seat, the tool comprising a handle, wherein the tool is characterized by The handle is provided with a connecting rod at the end thereof, and a torsion adjusting switch and a torsion display are arranged between the handle and the connecting rod.

2. The tire bead strength inspection verification tool of claim 1, wherein The torsion display is provided with a power switch and a setting button, the setting button can adjust the torsion, and the torsion can be switched between N.m and Kgf.cm.

3. The tire bead strength inspection verification tool of claim 1, wherein The digital display dial gauge is adjusted between 0-25mm.

4. The tire bead strength inspection verification tool of claim 1, wherein The torsion ratchet joint is designed in a square structure and can be adjusted by 90°.

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