A bicycle tire pressure and runout testing machine

Abstract

The utility model discloses a bicycle tire high pressure deflection nature testing machine, include: frame, wheel rim subassembly and propulsion subassembly, the frame has the connecting sleeve of coaxial arrangement at bottom and top, the wheel rim subassembly includes the upper wheel rim and lower wheel rim of mutual cooperation, the upper wheel rim and lower wheel rim form the collocation wheel rim of the tire of testing after butt joint, are used for casing joint tire of testing, the pivot of upper wheel rim is rotatably connected in the top of frame through connecting sleeve, the pivot of lower wheel rim is rotatably connected in the bottom of frame through connecting sleeve, the propulsion subassembly includes the first propulsion piece of fixed in the top of frame and located the second propulsion subassembly of the bottom of frame, the movable end of first propulsion piece is used for propelling upper wheel rim, the movable end of second propulsion subassembly is used for propelling lower wheel rim, when butt joint state, make the sealed connection upper wheel rim and lower wheel rim of tire of testing.

Description

Technical Field

[0001] This utility model relates to the field of tire high-pressure sway testing technology, and in particular to a bicycle tire high-pressure sway testing machine. Background Technology

[0002] The current bicycle tire manufacturing process generally includes: raw material preparation and mixing, semi-finished product processing, structural component fabrication, tire blank forming, and vulcanization. After manufacturing, the tire needs to be tested for quality using specialized equipment. However, current yaw testing technology is limited by the equipment's pressure-bearing capacity, resulting in the tire not being inflated to an accurate range during yaw testing, making it difficult to meet the testing requirements of high-pressure tires (such as racing road bikes and heavy-duty electric bicycles).

[0003] There is an urgent need to develop a high-pressure yaw tester for bicycle tires to improve the accuracy of yaw testing for high-pressure tires. Utility Model Content

[0004] This invention provides a bicycle tire high-pressure sway tester to solve the above-mentioned problems.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A bicycle tire high-pressure runout testing machine includes:

[0007] A frame having connecting sleeves coaxially disposed at the bottom and top;

[0008] A rim assembly, comprising an upper rim and a lower rim that can be mated together, wherein the upper rim and the lower rim form a matching rim for the tire to be tested after mating, for fitting the tire to be tested, wherein the shaft of the upper rim is rotatably connected to the top of the frame via a connecting sleeve, and the shaft of the lower rim is rotatably connected to the bottom of the frame via a connecting sleeve.

[0009] The propulsion assembly includes a first propulsion member fixed to the top of the frame and a second propulsion assembly located at the bottom of the frame. The movable end of the first propulsion member is used to propel the upper rim, and the movable end of the second propulsion assembly is used to propel the lower rim. In the docking state, the tire under test is sealed to connect the upper rim and the lower rim.

[0010] In one embodiment, a rotary drive assembly is further included, located at the top or bottom of the frame, for driving the docked rim assembly to rotate relative to the frame about the axis of the connecting sleeve.

[0011] In one embodiment, an air supply channel is also provided inside the axle of the upper or lower rim. One end of the air supply channel is connected to an external air source, and the opening at the other end is located inside the tire when it is in the docked state, for inflating the tire.

[0012] In one embodiment, a laser sensor is also included, which is connected to the frame to acquire the yaw value of the tire under test after rotation.

[0013] In one embodiment, a rotary joint is also connected to the top or bottom of the gas delivery channel, and the shaft of the upper rim is rotatably connected to the top of the frame via a bearing, and connected to the rotary drive assembly.

[0014] In one embodiment, a top connection assembly located at the bottom of the frame is also included. The top connection assembly includes a support member and a pusher member. The top connection assembly is located at the bottom of the lower rim. When the lower rim is raised, the pusher member drives the support member to move to the bottom of the pivot of the lower rim. When the test ends, the pusher member drives the support member away from the bottom of the pivot of the lower rim.

[0015] In one embodiment, the bottom of the support member is connected to the bottom of the frame via a slide rail, one end of the pusher member is fixedly connected to the frame, and the other end is connected to the side wall of the support member.

[0016] In one embodiment, a baffle is connected to the shaft of the lower rim, and a rotating disk is rotatably connected to the top of the shaft near its periphery. A bearing is connected to the bottom axis of the rotating disk, and a shaft hole for mounting the bearing is provided at the bottom axis of the rotating disk. The rotating disk is used to support at least a portion of the sidewall of the shaft.

[0017] In one embodiment, the top of the rotating shaft has a first connecting section and a second connecting section coaxially arranged. The rotating disk includes a first sub-disc and a second sub-disc. After the first sub-disc and the second sub-disc are joined together, a bearing for placing the first connecting section is formed. The diameter of the first connecting section is larger than the diameter of the second connecting section. The second connecting section is connected to the top cavity of the second sub-disc through the bearing. The top wall of the top cavity of the second sub-disc abuts against the top of the rotating shaft of the lower rim.

[0018] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0019] A liftable rim assembly is installed on the frame. The upper and lower rims are connected to both sides of the tire by a joint, forming a sealed rim shape after connection. This supports the tire from the inside and forms the rim when the tire is in normal driving. Under the pressure of the propulsion assembly, the tire can be inflated to its normal working state and rotated by external force. The degree of surface runout of the tire can be directly observed, thereby determining the quality of the tire under standard conditions. Attached Figure Description

[0020] Fig. 1 This is a schematic diagram of the main structure of an embodiment of this utility model;

[0021] Fig. 2 This is a side view structural diagram of an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Frame; 2. Rim assembly; 21. Upper rim; 22. Lower rim; 221. Shaft hole; 222. First dividing plate; 223. Second dividing plate; 3. Rotating shaft; 31. First connecting section; 32. Second connecting section; 4. Rotary drive assembly; 5. Air supply channel; 6. Laser sensor; 7. Rotary joint; 8. Top connection assembly; 81. Support component; 82. Propulsion component; 9. Baffle. Detailed Implementation

[0024] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0025] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0026] Reference Figs. 1-2 This utility model provides a bicycle tire high-pressure yaw tester, including: a frame 1, a rim assembly 2 and a propulsion assembly.

[0027] The frame 1 has connecting sleeves coaxially arranged at the bottom and top. The frame 1 is, for example, made of alloy material.

[0028] The rim assembly 2 includes an upper rim 21 and a lower rim 22 that can mate with each other. After mating, the upper rim 21 and lower rim 22 form a matching rim for the tire under test, used to mount the tire. The rotating shaft 3 of the upper rim 21 is rotatably connected to the top of the frame 1 via a connecting sleeve, and the rotating shaft 3 of the lower rim 22 is rotatably connected to the bottom of the frame 1 via a connecting sleeve. The upper rim 21 and lower rim 22 are mated to form a rim supported inside the tire, and are connected by a seal, which can be a rubber ring or a silicone ring.

[0029] The propulsion assembly includes a first propulsion member 82 fixed to the top of the frame 1 and a second propulsion assembly located at the bottom of the frame 1. The movable end of the first propulsion member is used to propel the upper rim 21, and the movable end of the second propulsion assembly is used to propel the lower rim 22. In the docking state, the tire under test is sealed to connect the upper rim 21 and the lower rim 22. The first propulsion member can be configured as a propulsion assembly that can move up and down in the vertical direction, and the second propulsion assembly can also be a propulsion assembly that moves up and down in the vertical direction. It should be noted that at least one of the first and second propulsion members must be a component that can move up and down.

[0030] With the assistance of the propulsion component, during operation, the tire is fitted onto at least one side of the lower rim 22 or the upper rim 21. With the help of the propulsion component, and with the rim component 2 being shaped to conform to the inner side of the tire, the tire support effect is improved. This allows for the rapid batch support of multiple tires of the same model, and the tire circumference can be observed by rotating it once. It also improves the efficiency of tire runout testing and reduces the test error of runout testing.

[0031] Preferably, the device further includes a rotary drive assembly 4, located at the top or bottom of the frame 1, for driving the docked rim assembly 2 to rotate relative to the frame 1 around the axis of the connecting sleeve. The rotary drive assembly 4 can be a motor and a reduction gear fixed to the top of the frame 1. The motor, through the action of the reduction gear, drives the shaft 3 of the upper rim 21 to rotate, thereby rotating the entire rim assembly 2. This eliminates the need for manual or other methods to drive the tire rotation, facilitating the observation and recording of tire runout tests under high pressure.

[0032] Preferably, the rotating shaft 3 of the upper rim 21 or lower rim 22 is further provided with an air supply channel 5. One end of the air supply channel 5 is connected to an external air source, and the opening at the other end is located inside the tire in the mating state, for inflating the tire. The air vent of the upper rim 21 is located inside the tire. During operation, the external air source can be an air pump, which is connected to the air supply channel 5 through a pipe. Under the transmission action of the air supply channel 5, gas is injected into the tire fixed on the rim assembly 2, bringing the tire to a high-pressure state. Under the aforementioned rotation drive assembly 4, the tire rotates one revolution, and the sway state of the tire under high-pressure conditions is recorded. This facilitates improved inspection efficiency and the observation of tire surface quality under high-pressure conditions.

[0033] Preferably, it also includes a laser sensor 6, which is connected to the frame 1 and is used to obtain the runout value of the tire after it rotates. The laser sensor 6 is set on the frame 1 and shines towards a preset position of the tire to collect surface runout data when the tire rotates one revolution and transmits it to the terminal for the operator to retrieve.

[0034] In addition, a rotary joint 7 is connected to the top or bottom of the air supply channel 5. The rotary joint 7 is used to connect the rotating shaft 3 to the external air pipe. When the upper rim 21 and the lower rim 22 rotate, one end of the air pipe will not rotate with it, thus preventing the air pipe from becoming entangled. The rotating shaft 3 of the upper rim 21 is rotatably connected to the top of the frame 1 via a bearing and is connected to the rotary drive assembly 4.

[0035] Preferably, the device further includes a top-mounted assembly 8 located at the bottom of the frame 1. The top-mounted assembly 8 includes a support member 81 and a pusher member. The top-mounted assembly 8 is located at the bottom of the lower rim 22. When the lower rim 22 is raised, the pusher member drives the support member 81 to move to the bottom of the pivot 3 of the lower rim 22. When the test ends, the pusher member drives the support member 81 away from the bottom of the pivot 3 of the lower rim 22. When the pivot 3 of the lower rim 22 is raised, the bottom of the pivot 3 will free up the distance equal to the height of the support member 81. The pusher member can be, for example, a pneumatic pusher or an electric pusher, which is not limited here. The support member 81 is slidably pushed to the bottom of the pivot 3 of the lower rim 22 by the pusher component. When the second pusher component is in the extended state, the upper rim 21 and the lower rim 22 are aligned, and the tire is fitted between the aligned upper rim 21 and the lower rim 22. The support member 81 is located at the bottom of the pivot 3 of the lower rim 22 for support and abutment. At this time, a large amount of high-pressure gas is pumped into the air supply channel 5, filling the tire with high-pressure gas. Under the action of the top connection component 8, the tire condition under high pressure can be stably tested. Furthermore, combined with the laser sensor 6, the high-pressure sway test of the tire can be automatically completed.

[0036] Preferably, the bottom of the support member 81 is connected to the bottom of the frame 1 via a slide rail. One end of the pusher 82 is fixedly connected to the frame 1, and the other end is connected to the side wall of the support member 81. The bottom of the support member 81 is provided with a strip-shaped slide groove, and the slide rail is slidably connected inside the strip-shaped slide groove. Under the action of the slide rail and the strip-shaped slide groove, it can stably and accurately abut against the bottom of the rotating shaft 3 of the lower rim 22 when high pressure needs to be borne.

[0037] Preferably, a baffle 9 is connected to the shaft of the lower rim 22's rotating shaft 3. A rotating disk is rotatably connected to the top of the rotating shaft 3 near its periphery. A bearing is connected to the bottom axis of the rotating disk, and a shaft hole 221 for mounting the bearing is provided at the bottom axis of the rotating disk. The rotating disk is used to support at least a portion of the sidewall of the rotating shaft 3. The bottom of the rotating disk is rotatably connected to the bottom rotating shaft 3 via a bearing. The baffle 9 is connected to the shaft of the lower rim 22, and the baffle 9 is used to cooperate with the top of the second propulsion assembly, thereby driving the lower rim 22 to rise and fall. The rotating shaft 3 and the lower rim 22 are rotatably connected via a bearing, which will not cause the lower rim 22 and the upper rim 21 to rotate, thus preventing interference with the sway test of one revolution of the tire.

[0038] Preferably, the top of the rotating shaft 3 has a first connecting section 31 and a second connecting section 32 coaxially arranged. The rotating disk includes a first sub-disc 222 and a second sub-disc 223. After the first sub-disc 222 and the second sub-disc 223 are joined together, a bearing for placing the first connecting section 31 is formed. The diameter of the first connecting section 31 is larger than the diameter of the second connecting section 32. The second connecting section 32 is connected to the top cavity of the second sub-disc 223 via the bearing. The top wall of the top cavity of the second sub-disc 223 abuts against the top of the rotating shaft 3 of the lower rim 22. The first connecting section 31 and the second connecting section 32, through different segmentation forms, enable the bottom of the lower rim 22 to be stably supported and rotate smoothly. In addition, the larger diameter of the first connecting section 31 can withstand the main radial load and bending moment, improving the rigidity and deformation resistance of the shaft end. The second connecting section 32 is connected by a small-diameter bearing, which is suitable for axial positioning and auxiliary support, reducing material usage and reducing rotational inertia. This design, through innovations such as segmented load-bearing, separate assembly, and layered bearing layout, achieves lightweight, low wear, and high reliability while ensuring structural strength, making it particularly suitable for mechanical systems that require a balance between compactness, high load, and long service life.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A bicycle tire high-pressure sway tester, characterized in that, include: A frame having connecting sleeves coaxially disposed at the bottom and top; A rim assembly, comprising an upper rim and a lower rim that can be mated together, wherein the upper rim and the lower rim form a matching rim for the tire to be tested after mating, for fitting the tire to be tested, wherein the shaft of the upper rim is rotatably connected to the top of the frame via a connecting sleeve, and the shaft of the lower rim is rotatably connected to the bottom of the frame via a connecting sleeve. The propulsion assembly includes a first propulsion member fixed to the top of the frame and a second propulsion assembly located at the bottom of the frame. The movable end of the first propulsion member is used to propel the upper rim, and the movable end of the second propulsion assembly is used to propel the lower rim. In the docking state, the tire under test is sealed to connect the upper rim and the lower rim.

2. The bicycle tire high-pressure sway tester according to claim 1, characterized in that, It also includes a rotary drive assembly located at the top or bottom of the frame for driving the docked rim assembly to rotate relative to the frame about the axis of the connecting sleeve.

3. The bicycle tire high-pressure sway tester according to claim 2, characterized in that, An air supply channel is also provided inside the rotating shaft of the upper or lower rim. One end of the air supply channel is connected to an external air source, and the opening at the other end is located inside the tire when it is in the docked state, for inflating the tire.

4. The bicycle tire high-pressure sway tester according to claim 3, characterized in that, It also includes a laser sensor, which is connected to the frame and is used to acquire the yaw value of the tire under test after rotation.

5. The bicycle tire high-pressure sway tester according to claim 3, characterized in that, A rotary joint is also connected to the top or bottom of the gas transmission channel. The shaft of the upper rim is rotatably connected to the top of the frame through a bearing and connected to the rotary drive assembly.

6. The bicycle tire high-pressure sway tester according to claim 1, characterized in that, It also includes a top connection assembly located at the bottom of the frame. The top connection assembly includes a support member and a pusher member. The top connection assembly is located at the bottom of the lower rim. When the lower rim is raised, the pusher member drives the support member to move to the bottom of the lower rim's pivot. When the test ends, the pusher member drives the support member away from the bottom of the lower rim's pivot.

7. The bicycle tire high-pressure sway tester according to claim 6, characterized in that, The bottom of the support member is connected to the bottom of the frame via a slide rail. One end of the pusher is fixedly connected to the frame, and the other end is connected to the side wall of the support member.

8. The bicycle tire high-pressure sway tester according to claim 1, characterized in that, A baffle is connected to the shaft of the lower rim, and a rotating disk is rotatably connected to the top of the shaft. A bearing is connected to the bottom axis of the rotating disk, and a shaft hole for installing the bearing is opened at the bottom axis of the rotating disk. The rotating disk is used to support at least part of the side wall of the shaft.

9. The bicycle tire high-pressure sway tester according to claim 8, characterized in that, The top of the rotating shaft has a first connecting section and a second connecting section coaxially arranged. The rotating disk includes a first sub-disc and a second sub-disc. After the first sub-disc and the second sub-disc are joined together, a bearing for placing the first connecting section is formed. The diameter of the first connecting section is larger than the diameter of the second connecting section. The second connecting section is connected to the top cavity of the second sub-disc through the bearing. The top wall of the top cavity of the second sub-disc abuts against the top of the rotating shaft of the lower rim.

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