Large-span large-range embryo thickness measuring device

Abstract

The utility model relates to a large span large range embryo thickness measuring device belongs to tire measuring device field. Be equipped with table frame, the upper frame of table frame installs handle, install lower contact in the lower frame of table frame, be equipped with table rod movement positioning sleeve in the upper frame of table frame, the lower frame of table frame is arc structure, the lower end of the table rod of dial gauge passes through table rod movement positioning sleeve and is connected with upper contact, the table rod can drive upper contact to make linear motion in table rod movement positioning sleeve, the middle part of press handle is hinged together with dial gauge through pivot, the front part of press handle is longitudinally provided with guide slot, the upper end of table rod passes through guide slot, the upper end of table rod is equipped with table rod upper stopper, the dial gauge is equipped with key, zero reset key, battery and digital display meter, the lower side of handle is equipped with handle slot, the middle part of handle is longitudinally provided with open slot, and the rear part of press handle is inserted in open slot. The utility model can easily place the inside and outside of tire side and crown, and carry out local thickness detection.

Description

Technical Field

[0001] This utility model relates to the field of tire testing devices, specifically a large-span, large-range tire blank thickness measuring device. Background Technology

[0002] As we all know, people's work and life are inseparable from the operation of various vehicles. Tires play multiple roles in automobiles, including transmitting driving force, braking force and steering force to achieve vehicle control, supporting the weight of the vehicle, saving fuel consumption and improving driving comfort, as well as reducing and absorbing vibrations and shocks during driving and protecting automobile parts from damage. However, during the production process, uneven material distribution in various parts directly affects the dynamic balance and uniformity of the tire. Traditional testing methods involve individually testing the thickness distribution of each component and performing dynamic balance and uniformity tests on the tire before it leaves the factory. Due to the tolerances in the thickness distribution of various components, the combination of multiple layers may lead to local thickness deviations. Dynamic balance and uniformity tests are then performed after the tire has been vulcanized. If abnormal thickness deviations due to the combination of multiple layers are not detected in time, the tire's dynamic balance and uniformity will exceed the standards before leaving the factory, resulting in its scrapping and increased costs. If the accuracy of the testing equipment cannot detect 100% of the issues, the tire's handling and stability during driving will be directly affected at best, and in extreme cases, it may directly cause a tire blowout, posing a serious threat to driving safety, posing a great safety hazard, 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 large-span, large-range tire blank thickness measuring device, thereby solving the problem that local thickness deviations may not be detected in time due to multiple layer combinations.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a large-span, large-range tire blank thickness measuring device, which is equipped with a dial indicator frame. The upper frame of the dial indicator frame is equipped with a handle, the lower frame of the dial indicator frame is equipped with a lower contact, and the upper frame of the dial indicator frame is equipped with a dial indicator rod moving positioning sleeve. The lower frame of the dial indicator frame is an arc-shaped structure. The lower end of the dial indicator rod passes through the dial indicator rod moving positioning sleeve and is connected to the upper contact. The dial indicator rod can drive the upper contact to move linearly within the dial indicator rod moving positioning sleeve. The middle part of the pressure handle is hinged to the dial indicator via a rotating shaft. The front part of the pressure handle has a longitudinally opened guide groove. The upper end of the dial indicator rod passes through the guide groove, and the upper end of the dial indicator rod is equipped with a dial indicator rod upper stop.

[0005] The dial indicator is equipped with an on / off switch, a zeroing switch, a battery, and a digital display.

[0006] The handle has a handle groove on its lower side.

[0007] The handle has a longitudinally spaced opening in the middle, and the rear part of the pressure handle is inserted into the opening.

[0008] The beneficial effect of this utility model is that it ensures that the span of the instrument frame and the positions of the upper and lower contacts can be easily placed on the inner and outer sides of the tire sidewall and the tire crown for local thickness detection and inspection. This solves the problem that local thickness deviations may not be detected in time due to multiple layer combinations, which leads to tire dynamic balance and uniformity exceeding the standards before leaving the factory and thus scrapping the tire, increasing 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 zero-range state of this utility model.

[0011] Figure 2 A schematic diagram of the maximum range state of this utility model.

[0012] Figure 3 A schematic diagram of the tire sidewall thickness detection status of this utility model.

[0013] Figure 4 This utility model provides a schematic diagram of the tire crown thickness detection status.

[0014] In the diagram: 1. Dial indicator frame, 2. Handle, 3. Lower contact, 4. Dial indicator rod moving and positioning sleeve, 5. Dial indicator, 6. Connecting and fixing base, 7. Dial indicator rod, 8. Upper contact, 9. Upper stop of dial indicator rod, 10. Rotating shaft, 11. Pressure handle, 12. Guide groove, 13. On / off switch, 14. Zeroing key, 15. Battery, 16. Digital display.

[0015] T1. Bead, T2. Sidewall, T3. Shoulder, T4. Crown. Detailed Implementation

[0016] In the figure, the present invention includes a dial indicator frame 1, a handle 2 installed on the upper frame of the dial indicator frame 1, a lower contact 3 extending to a certain height on the lower frame of the dial indicator frame 1, a dial rod moving positioning sleeve 4 on the upper frame of the dial indicator frame 1, the lower end of the dial rod 7 of the dial indicator 5 passes through the dial rod moving positioning sleeve 4 and is connected to the upper contact 8, and is connected and fixed to the dial indicator frame 1 through a connecting fixing seat 6, the dial rod 7 can drive the upper contact 8 to move linearly within the dial rod moving positioning sleeve 4, the middle part of the pressure handle 11 is hinged to the dial indicator 5 via a rotating shaft 10, the front part of the pressure handle 11 has a longitudinally opened guide groove 12, the upper end of the dial rod 7 passes through the guide groove 12, the upper end of the dial rod 7 is provided with a dial rod upper stop 9, the dial rod upper stop 9 can prevent the dial rod 7 from slipping out of the guide groove 12, the dial indicator 5 is provided with an on / off key 13, a zeroing key 14, a battery mounting hole 15 and a digital display 16. The handle 2 has a groove on its lower side designed according to human grip principles, and an opening groove in the middle of the handle 2. The rear of the pressure bar 11 is inserted into the opening groove to ensure that the pressure bar 11 of the dial indicator 5 meets the position requirements when it reaches its maximum stroke. The gauge frame 1 is designed with an arc-shaped lower frame to ensure the span of the gauge frame and the positions of the upper contact 8 and lower contact 3 of the thickness gauge. It can easily place the inner and outer parts of the tire sidewall and tire crown for local thickness measurement and inspection.

[0017] The specific procedure for measuring the local thickness of the tire sidewall is as follows: The tire blank mainly consists of the bead T1, sidewall T2, shoulder T3, and crown T4. The tire blank is placed flat on the inspection platform. The inspector activates the dial indicator 5 by turning on the switch 13 and bringing the upper contact 8 and lower contact 3 into contact. After repeatedly pressing the lever 11 several times, the digital display 16 is zeroed using the zeroing key 14. While holding the handle 2, the operator presses the lever 11. The lever 11, with the pivot 10 as the fulcrum, moves the gauge rod 7 within the guide groove 12, synchronously sliding with the upper stop 9 of the gauge rod. This causes the upper contact 8 to rise linearly within the gauge rod moving positioning sleeve 4. When the distance between the upper contact 8 and the lower contact 3 is greater than the size of the bead T1, the thickness measuring device is manually moved. After moving the upper contact 8 and lower contact 3 to the measurement position to be tested, the inspector releases the lever 11. Under the force of the spring-loaded self-resetting function within the dial indicator 5, the gauge rod... 7. The upper stop 9 of the gauge rod presses against the guide groove 12. With the pivot 10 as the fulcrum, the pressure handle 11 rises at its end. Simultaneously, the gauge rod 7 drives the upper contact 8 to descend linearly within the gauge rod moving positioning sleeve 4 until the upper contact 8 contacts the outer sidewall T2 position of the tire carcass, and the lower contact 3 contacts the inner sidewall T2 position of the tire carcass. Slight manual movement ensures the fit between the upper and lower contacts 8 and the sidewall T2. Gently lift the pressure handle 11 with your finger to ensure the reading of the digital display 16 stabilizes before recording the reading. After measurement, gently press the pressure handle. 11. When the upper contact 8 is removed from the surface of the tire sidewall T2, and the distance between the lower contact 3 and the upper contact 8 is greater than the thickness of the tire sidewall T2, move the handle 2 to another position to perform the above tests. When all the tests are completed, press the pressure handle 11. The pressure handle 11 uses the rotating shaft 10 as a fulcrum, and moves the gauge rod 7 in the guide groove 12. Simultaneously, the upper contact 8 moves in a straight line within the gauge rod moving positioning sleeve 4, making contact with the upper stop 9 of the gauge rod. When the distance between the upper contact 8 and the lower contact 3 is greater than the size of the tire bead T1, manually move the thickness measuring device. After moving the upper contact 8 and lower contact 3 out of the tire blank being tested, release the pressure handle 11. Under the action of the spring self-resetting function inside the dial indicator 5, the indicator rod 7 drives the upper stop 9 of the indicator rod to press the guide groove 12. With the rotating shaft 10 as the fulcrum, the end of the pressure handle 11 rises, and the indicator rod 7 drives the upper contact 8 to make a downward linear movement in the indicator rod moving positioning sleeve 4 until the upper contact 8 contacts the lower contact 3. After turning off the switch 13 on the dial indicator 5, place it in a special storage box for storage and perform regular calibration.

[0018] The specific procedure for measuring the local thickness of the tire crown is as follows: The tire carcass mainly consists of the bead T1, sidewall T2, shoulder T3, and crown T4. The tire carcass is placed flat on the inspection platform. The inspector activates the dial indicator 5 by turning on the switch 13 and bringing the upper contact 8 and lower contact 3 into contact. After repeatedly pressing the lever 11 several times, the digital display 16 is zeroed using the zeroing key 14. While holding the handle 2, the operator presses the lever 11. The lever 11, with the pivot 10 as the fulcrum, moves the gauge rod 7 within the guide groove 12, synchronously sliding with the upper stop 9 of the gauge rod. This causes the upper contact 8 to rise linearly within the gauge rod moving positioning sleeve 4. When the distance between the upper contact 8 and the lower contact 3 is greater than the dimensions of the bead T1, sidewall T2, and shoulder T3, the operator manually moves the thickness measuring device. After moving the upper and lower contact positions to the measurement position of the crown T4 being tested, the inspector releases the lever 11. The dial indicator 5 then features a spring-loaded self-resetting function. Under the force, the gauge rod 7 drives the upper stop 9 to press the guide groove 12. The pressure handle 11, with the rotating shaft 10 as the fulcrum, rises at the end while the gauge rod 7 drives the upper contact 8 to make a downward linear motion within the gauge rod moving positioning sleeve 4 until the upper contact 8 contacts the outer tire crown T4 position of the tire carcass and the lower contact 3 contacts the inner tire crown T4 position of the tire carcass. Slight manual movement is made to ensure the fit between the upper and lower contacts and the tire crown T4. The pressure handle 11 is gently lifted with a finger to ensure that the reading of the digital display 16 is stable before recording the reading. After the measurement is completed, the pressure handle 11 is gently pressed down. 1. When the upper contact 8 is removed from the surface of the tire crown T4, and the distance between the lower contact 3 and the upper contact 8 is greater than the thickness of the tire crown T4, move the handle 2 to another position to perform the above tests. When all points have been tested, press the pressure handle 11. The pressure handle 11 uses the rotating shaft 10 as a fulcrum, and moves the gauge rod 7 in the guide groove 12. Simultaneously, the upper contact 8 moves in a straight line within the gauge rod moving positioning sleeve 4, sliding synchronously with the contact of the upper stop 9 on the gauge rod. When the distance between the upper contact 8 and the lower contact 3 is greater than the dimensions of the tire bead T1, tire sidewall T2, and tire shoulder T3, Manually move the thickness measuring device, move the upper and lower contact points out of the tire blank being inspected, and then release the pressure handle 11. Under the action of the spring-loaded self-resetting function inside the dial indicator 5, the gauge rod 7 drives the upper stop 9 of the gauge rod to press the guide groove 12. With the rotating shaft 10 as the fulcrum, as the end of the pressure handle 11 rises, the gauge rod 7 drives the upper contact 8 to make a downward linear motion within the gauge rod moving positioning sleeve 4 until the upper contact 8 contacts the lower contact 3. After turning off the switch 13 on the dial indicator 5, place it in a special storage box for storage and perform periodic calibration.

Claims

1. A large-span, large-range tire blank thickness measuring device, equipped with a measuring frame, characterized in that, The upper frame of the dial indicator is equipped with a handle, the lower frame of the dial indicator is equipped with a lower contact, and the upper frame of the dial indicator is equipped with a dial rod moving positioning sleeve. The lower frame of the dial indicator has an arc-shaped structure. The lower end of the dial rod passes through the dial rod moving positioning sleeve and is connected to the upper contact. The dial rod can drive the upper contact to move linearly within the dial rod moving positioning sleeve. The middle part of the pressure handle is hinged to the dial indicator via a rotating shaft. The front part of the pressure handle has a longitudinal guide groove, and the upper end of the dial rod passes through the guide groove. The upper end of the dial rod is equipped with a dial rod upper stop.

2. The large-span, large-range tire blank thickness measuring device according to claim 1, characterized in that... The dial indicator is equipped with an on / off switch, a zeroing switch, a battery, and a digital display.

3. The large-span, large-range tire blank thickness measuring device according to claim 1, characterized in that... The handle has a handle groove on its lower side.

4. The large-span, large-range tire blank thickness measuring device according to claim 1, characterized in that... The handle has a longitudinally spaced opening in the middle, and the rear part of the pressure handle is inserted into the opening.

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