Tire changer turntable stability adjustment device

Abstract

The present invention discloses a device for adjusting the stability of a tire dismantling machine turntable, which belongs to the field of laser measurement technology, and comprises a base, a support frame is fixedly connected to the base, a slide rail is installed and connected to the side of the support frame, the slide rail comprises a straight portion and an arc portion, a first mounting seat and a second mounting seat that can move along the slide rail are provided on the slide rail, and the first mounting seat and the second mounting seat can both switch between the straight portion and the arc portion, a laser rangefinder is fixedly connected to the first mounting seat, an angle measurement component is provided on the second mounting seat, and the angle measurement component signal is connected to the first mounting seat and the laser rangefinder. The invention can measure the rotation angle of the tire dismantling machine turntable through the angle measurement component. For example, when it is detected that the tire dismantling machine turntable rotates one circle, the laser rangefinder is controlled to be automatically turned off, and the first mounting seat is controlled to move to the next measurement position, thereby avoiding missed detection and multiple detection, and improving the detection efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of laser measurement, and in particular relates to a turntable stability adjustment device for a tire changer. Background Art

[0002] The tire changer turntable is a device used for car repair and tire replacement, which can help technicians easily remove and install tires. The tire changer turntable is usually installed on the tire changer and can rotate to facilitate the operation of the tire from all angles. As one of the core components of the tire changer, the stability of the tire changer turntable is directly related to the safety and efficiency of the tire changer operation. Insufficient stability of the tire changer turntable may cause the tire or wheel hub to accidentally fall off during the tire changer process, causing personal injury or equipment damage. By adjusting the stability of the tire changer turntable, it can ensure that the tire changer operation is carried out in a stable environment and reduce safety risks.

[0003] Deformation measurement is an important part of the stability adjustment of the tire changer turntable. During the measurement, the laser instrument needs to be aimed at a certain position of the tire changer turntable, and then the tire changer turntable is rotated, and the laser is used to detect whether the tire changer turntable is deformed. Then the position of the laser instrument is moved, and the next circle of measurement is performed. However, the rotation of the tire changer turntable is usually driven by the motor of the tire changer itself, and the detection equipment is an independent device and cannot obtain the rotation of the tire changer turntable. This brings the following problems to laser measurement: First, missed measurement: the laser instrument moves before the tire changer turntable rotates one circle, resulting in missed detection; second, multiple measurements: the tire changer turntable rotates multiple circles without the laser instrument switching position, which leads to reduced efficiency; third, it is impossible to locate and record the defective parts, and it is impossible to guide the subsequent adjustment process. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a turntable stability adjustment device for a tire changing machine, which has the advantages of improving measurement efficiency and locating defective parts, thereby solving the problems of the prior art.

[0005] The present invention is implemented as follows: a tire changer turntable stability adjustment device comprises a base, a support frame is fixedly connected to the base, a slide rail is installed and connected to the side of the support frame, the slide rail comprises a straight portion and an arc portion, a first mounting seat and a second mounting seat that can move along the slide rail are provided on the slide rail, and the first mounting seat and the second mounting seat can both switch between the straight portion and the arc portion, a laser rangefinder is fixedly connected to the first mounting seat, an angle measurement component is provided on the second mounting seat, and a signal of the angle measurement component is connected to the first mounting seat and the laser rangefinder.

[0006] As a preferred embodiment of the present invention, the angle measurement assembly includes an encoder mounted on the second mounting seat, and a sensor connected to the encoder, so that the encoder is fixedly connected to the axis of the tire changer turntable, and the sensor is electrically connected to the controller.

[0007] As a preferred embodiment of the present invention, the angle measuring assembly includes a displacement measuring wheel, which is used to fit onto the lower surface of the tire removal machine turntable. When the tire removal machine turntable rotates, the displacement measuring wheel is driven to rotate, and the rotation angle of the tire removal machine turntable is known in real time through the stroke of the displacement measuring wheel and the distance from the center of the tire removal machine turntable.

[0008] As a preferred embodiment of the present invention, the support frame includes a frame, a first motor, a screw rod, and a screw rod seat; the lower end of the frame is fixedly connected to the base; the first motor is fixedly connected to the upper end of the frame; the screw rod is fixedly connected to the output end of the first motor, and the screw rod is connected to the frame through a bearing; the screw rod seat is connected to the screw rod through a thread, and the screw rod seat fits the inner surface of the frame; a double-layer slide groove is provided on the screw rod seat, and a double-layer slide bar is fixedly connected to the side of the inner surface of the frame, and the double-layer slide groove is slidably connected to the double-layer slide bar.

[0009] As a preferred embodiment of the present invention, the first mounting seat includes a first seat body, a first roller, and a second motor; the laser rangefinder is fixedly connected to the first seat body; the first roller is rotatably connected to the first seat body, and the first roller is rollingly connected to the slide rail; the second motor is fixedly connected to the first seat body, and the output end of the second motor is connected to one of the first rollers.

[0010] As a preferred embodiment of the present invention, the second mounting seat includes a second seat body, a second roller, and a third motor; the angle measuring assembly is connected to the second seat body; the second roller is rotationally connected to the second seat body, and the second roller is rollingly connected to the slide rail; the third motor is fixedly connected to the second seat body, and the output end of the third motor is connected to one of the second rollers.

[0011] As a preferred embodiment of the present invention, a spring is fixedly connected to the side of the second seat body, a connecting platform is fixed to the end of the spring away from the second seat body, a telescopic guide mechanism is provided on the side of the connecting platform close to the spring, the other end of the guide mechanism is connected to the side of the base seat body, a telescopic piece is fixedly connected to the side of the connecting platform away from the spring, the telescopic end of the telescopic piece is fixedly connected to a bearing platform, the displacement measuring wheel is fixedly connected to the bearing platform; an elastic measuring sensor is provided on the spring; a support plate is fixedly connected to the straight portion, and when the second mounting seat is located in the straight portion, a side of the connecting platform close to the spring fits against the support plate.

[0012] As a preferred embodiment of the present invention, the slide rail includes an upper straight portion, a lower straight portion and a semicircular portion, the semicircular portion is connected to the screw seat through a connecting frame, the upper straight portion rotates on the upper end of the semicircular portion, and the lower straight portion is fixedly connected to the lower end of the semicircular portion.

[0013] As a preferred embodiment of the present invention, a first screw hole is provided on the semicircular portion, a second screw hole is provided inside the upper straight portion, the first screw hole and the second screw hole are aligned, and the first screw hole and the second screw hole are connected by the same screw rod.

[0014] As a preferred embodiment of the present invention, a hand wheel is fixedly connected to the end of the screw rod close to the support frame, and when the upper straight portion is disassembled, the hand wheel can be slidably connected between the double-layer slide bars.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The angle measurement component can be used to measure the rotation angle of the tire changer turntable. For example, when it is detected that the tire changer turntable rotates one circle, the laser rangefinder is automatically turned off and the first mounting seat is moved to the next measuring position, thereby avoiding missed detection and multiple detection and improving the detection efficiency.

[0017] 2. Based on the above effects, while the angle measurement component controls the first mounting seat to move to the next measuring position, the angle measurement component also monitors the rotation angle of the tire changer turntable. When the tire changer turntable rotates one circle, the angle measurement component controls the laser rangefinder to automatically start detection, thereby ensuring that the starting angles of multiple measurements are the same, which is convenient for recording the angle of the deformation area on the tire changer turntable.

[0018] 3. When the laser rangefinder detects that the deformation of the tire changer turntable is greater than the preset value, the angle measuring component can automatically record the angle of the deformation area on the tire changer turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 2 is a schematic structural diagram of a first viewing angle of a turntable stability adjustment device for a tire changing machine provided by an embodiment of the present invention;

[0020] Figure 2 is an enlarged structural schematic diagram of a slide rail portion provided by an embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of a second viewing angle of a tire changing machine turntable stability adjustment device provided by an embodiment of the present invention;

[0022] Figure 4 The embodiment of the present invention provides Figure 3 A schematic diagram of the enlarged structure of part A;

[0023] Figure 5 The embodiment of the present invention provides Figure 3 A schematic diagram of the enlarged structure of part B;

[0024] Figure 6 The embodiment of the present invention provides Figure 3 Schematic diagram of the enlarged structure of part C.

[0025] In the figure: 1. base; 2. support frame; 21. frame; 22. first motor; 23. screw; 24. screw seat; 25. double-layer slide groove; 26. double-layer slide bar; 3. slide rail; 4. first mounting seat; 41. first seat body; 42. first roller; 43. second motor; 5. second mounting seat; 51. second seat body; 52. second roller; 53. third motor; 6. laser rangefinder; 7. angle measuring component; 8. spring; 9. connecting platform; 10. guide mechanism; 11. telescopic member; 12. bearing platform; 13. support plate; 14. screw; 15. handwheel. DETAILED DESCRIPTION

[0026] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0027] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0028] like Figures 1 to 6 As shown, the tire changer turntable stability adjustment device provided by the embodiment of the present invention comprises a base 1, to which a support frame 2 is fixedly connected, a slide rail 3 is installed and connected on the side of the support frame 2, the slide rail 3 comprises a straight portion and an arc portion, a first mounting seat 4 and a second mounting seat 5 which can move along the slide rail 3 are provided on the slide rail 3, and the first mounting seat 4 and the second mounting seat 5 can both switch between the straight portion and the arc portion, a laser rangefinder 6 is fixedly connected to the first mounting seat 4, an angle measuring component 7 is provided on the second mounting seat 5, and the angle measuring component 7 is signal-connected to the first mounting seat 4 and the laser rangefinder 6.

[0029] In the above scheme, the angle measuring assembly 7 is used to measure the rotation angle of the tire changer turntable, and the laser rangefinder 6 is used to measure whether the tire changer turntable is deformed. During measurement, the laser rangefinder 6 is aligned with a certain position of the tire changer turntable, and then the tire changer turntable is rotated, and the laser is used to detect whether the tire changer turntable is deformed. When the tire changer turntable rotates one circle, the laser rangefinder 6 is moved to the next measurement position, and the next circle of measurement is performed.

[0030] This setting has the following effects:

[0031] First, the angle measurement component 7 can measure the rotation angle of the tire changer turntable. For example, when it is detected that the tire changer turntable rotates one circle, the laser rangefinder 6 is controlled to be automatically turned off, and the first mounting seat 4 is controlled to move to the next measuring position, thereby avoiding missed detection and multiple detection and improving the detection efficiency.

[0032] Second, based on the above effects, while the angle measurement component 7 controls the first mounting seat 4 to move to the next measuring position, the angle measurement component 7 also monitors the rotation angle of the tire changer turntable. When the tire changer turntable rotates one circle, the angle measurement component 7 controls the laser rangefinder 6 to automatically start detection, thereby ensuring that the starting angles of multiple measurements are the same, which is convenient for recording the angle of the deformation area on the tire changer turntable.

[0033] Thirdly, when the laser rangefinder 6 detects that the deformation amount of the tire changer turntable is greater than a preset value, the angle measuring component can automatically record the angle of the deformed area on the tire changer turntable.

[0034] In one embodiment, the angle measurement assembly 7 includes an encoder mounted on the second mounting seat 5, and a sensor (not shown in the figure) connected to the encoder, so that the encoder is fixedly connected to the axis of the tire dismantling machine turntable, and the sensor is electrically connected to the controller. When the tire dismantling machine turntable rotates, the encoder rotates accordingly, and the sensor transmits the encoder's rotation signal to the controller in real time. The controller calculates the rotation angle of the tire dismantling machine turntable according to the rotation signal, and controls the opening and closing of the laser rangefinder 6 and the movement of the first mounting seat 4 accordingly. Such a design not only improves the measurement accuracy, but also realizes the automation of measurement, greatly reducing the burden of manual operation.

[0035] In another embodiment, the angle measuring component 7 includes a displacement measuring wheel, which is used to fit the lower surface of the tire removal machine turntable. When the tire removal machine turntable rotates, the displacement measuring wheel is driven to rotate. Through the stroke of the displacement measuring wheel and the distance from the center of the tire removal machine turntable, the rotation angle of the tire removal machine turntable is known in real time.

[0036] The operation of the angle measurement component 7 is based on the close fit between the displacement measurement wheel and the lower surface of the tire dismantling machine turntable. When the tire dismantling machine turntable rotates, due to physical contact, the power of the tire dismantling machine turntable is directly transmitted to the displacement measurement wheel, causing it to rotate synchronously. The displacement measurement wheel records its rotation stroke, i.e. the distance it has rotated, and combines the known distance from the center of the tire dismantling machine turntable when it is fixedly installed under the tire dismantling machine turntable. By using geometric principles, the angle of rotation of the tire dismantling machine turntable can be accurately calculated. The angle measurement component 7 can monitor and feedback the rotation angle of the tire dismantling machine turntable in real time and accurately, without the need for complex electronic sensors or high-precision encoders, reducing the complexity and cost of the system. At the same time, due to its working principle based on physical contact, the measurement results are more stable and reliable, and are not affected by external factors such as electromagnetic interference, thereby improving the stability and reliability of the overall system.

[0037] Further, the support frame 2 includes a frame 21, a first motor 22, a screw 23, and a screw seat 24; the lower end of the frame 21 is fixedly connected to the base 1; the first motor 22 is fixedly connected to the upper end of the frame 21; the screw 23 is fixedly connected to the output end of the first motor 22, and the screw 23 is connected to the frame 21 through a bearing; the screw seat 24 is connected to the screw 23 through a thread, and the screw seat 24 is attached to the inner surface of the frame 21; a double-layer slide 25 is provided on the screw seat 24, and a double-layer slide bar 26 is fixedly connected to the side of the inner surface of the frame 21, and the double-layer slide 25 is slidably connected to the double-layer slide bar 26. Through the cooperation of the double-layer slide 25 and the double-layer slide bar 26, the screw seat 24 can be limited to prevent it from tilting.

[0038] Exemplarily, the first mounting seat 4 includes a first seat body 41, a first roller 42, and a second motor 43; the laser rangefinder 6 is fixedly connected to the first seat body 41; the first roller 42 is rotatably connected to the first seat body 41, and the first roller 42 is rollingly connected to the slide rail 3; the second motor 43 is fixedly connected to the first seat body 41, and the output end of the second motor 43 is connected to one of the first rollers 42.

[0039] Exemplarily, the second mounting seat 5 includes a second seat body 51, a second roller 52, and a third motor 53; the angle measuring assembly 7 is connected to the second seat body 51; the second roller 52 is rotationally connected to the second seat body 51, and the second roller 52 is rollingly connected to the slide rail 3; the third motor 53 is fixedly connected to the second seat body 51, and the output end of the third motor 53 is connected to one of the second rollers 52.

[0040] Furthermore, a spring 8 is fixedly connected to the side of the second seat body 51, and a connecting platform 9 is fixed to the end of the spring 8 away from the second seat body 51, and a telescopic guide mechanism 10 (for example, a guide rod is slidably inserted in a guide tube) is provided on the side of the connecting platform 9 close to the spring 8, and the other end of the guide mechanism 10 is connected to the side of the seat body of the base 1, and a telescopic member 11 (for example, an electric push rod) is fixedly connected to the side of the connecting platform 9 away from the spring 8, and the telescopic end of the telescopic member 11 is fixedly connected to a bearing platform 12, and the displacement measuring wheel is fixedly connected to the bearing platform 12; an elastic measuring sensor is provided on the spring 8; a support plate 13 is fixedly connected to the straight portion, and when the second mounting seat 5 is located in the straight portion, the side of the connecting platform 9 close to the spring 8 is attached to the support plate 13.

[0041] This setting provides the following functions:

[0042] First, the second mounting seat 5 can be moved to a position aligned with the screw rod 23. At this time, the displacement measuring wheel can be attached to the outer peripheral surface of the wheel body, which can still measure the rotation angle of the tire changer turntable. At this time, the angle α = S / R, and the radian value of the angle α can be obtained. If the radian value needs to be converted to degrees, the following conversion formula can be used: Angle = radian × (180 / π). Among them, S is the measured value of the displacement measuring wheel, and R is the radius R of the tire changer turntable.

[0043] Second, when the tire changer turntable is a disc, the axial deformation of the tire changer turntable can be obtained by the elastic force of the spring 8. The axial deformation x=F / k, where F is the elastic force of the spring 8 and k is the stiffness coefficient of the spring 8.

[0044] Third, due to the support plate 13, when the second mounting seat 5 is located in the straight portion, the side of the connecting platform 9 close to the spring 8 is in contact with the support plate 13, which can support the connecting platform 9 and avoid deformation of the spring 8. In this case, the displacement measuring wheel can support the turntable of the tire changer, thereby improving the stability of the turntable of the tire changer.

[0045] Furthermore, the slide rail 3 includes an upper straight portion, a lower straight portion and a semicircular portion, the semicircular portion is connected to the screw seat 24 through a connecting frame, the upper straight portion rotates on the upper end of the semicircular portion, and the lower straight portion is fixedly connected to the lower end of the semicircular portion. With this arrangement, when the first mounting seat 4 is in the lower straight portion, the lower side of the tire dismantling machine turntable can be measured, when the first mounting seat 4 is in the semicircular portion, the outer peripheral surface of the tire dismantling machine turntable can be measured, and when the first mounting seat 4 is in the upper straight portion, the upper side of the tire dismantling machine turntable can be measured. The measurement range can be increased.

[0046] Furthermore, a first screw hole is provided on the semicircular portion, a second screw hole is provided inside the upper straight portion, the first screw hole and the second screw hole are aligned, and the first screw hole and the second screw hole are connected to the same screw rod 14. With this arrangement, the upper straight portion can be removed, and the tire can be removed while being measured, and the data in actual use can be measured. Because the upper straight portion is located above the turntable of the tire removal machine, when the tire is installed on the tire removal machine or removed from the tire removal machine, the upper straight portion will hinder the removal of the tire.

[0047] Furthermore, the end of the screw rod 14 close to the support frame 2 is fixedly connected with a hand wheel 15, and when the upper straight portion is disassembled, the hand wheel 15 can be slidably connected between the double-layer slide bars 26. With this arrangement, by rotating the hand wheel 15, the screw rod 14 can be screwed out of the upper straight portion, so that the upper straight portion can be disassembled. At the same time, the gap between the hand wheel 15 and the double-layer slide bar 26 is aligned, and by moving the screw rod 23 downward, the hand wheel 15 can be slidably connected between the double-layer slide bars 26. With this arrangement, the slide rail 3 can be limited (especially when the displacement measuring wheel supports the lower surface of the tire changer turntable) to prevent the slide rail 3 from tilting.

[0048] Working principle of the present invention:

[0049] The angle measuring assembly 7 is used to measure the rotation angle of the tire changer turntable, and the laser rangefinder 6 is used to measure whether the tire changer turntable is deformed. During measurement, the laser rangefinder 6 is aimed at a certain position of the tire changer turntable, and then the tire changer turntable is rotated, and the laser is used to detect whether the tire changer turntable is deformed. When the tire changer turntable rotates one circle, the laser rangefinder 6 is moved to the next measurement position, and the next circle of measurement is performed.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for adjusting the stability of a turntable of a tire changing machine, comprising a base (1), to which a support frame (2) is fixedly connected, characterized in that: A slide rail (3) is mounted and connected to the side of the support frame (2), the slide rail (3) comprising a straight portion and an arcuate portion, the slide rail (3) being provided with a first mounting seat (4) and a second mounting seat (5) which can move along the slide rail (3), and the first mounting seat (4) and the second mounting seat (5) can both switch between the straight portion and the arcuate portion, the first mounting seat (4) being fixedly connected to a laser rangefinder (6), the second mounting seat (5) being provided with an angle measuring assembly (7), and the angle measuring assembly (7) being signal-connected to the first mounting seat (4) and the laser rangefinder (6); The angle measurement assembly (7) comprises a displacement measurement wheel, which is used to fit the lower surface of the tire removal machine turntable. When the tire removal machine turntable rotates, the displacement measurement wheel is driven to rotate. The rotation angle of the tire removal machine turntable is obtained in real time through the travel of the displacement measurement wheel and the distance from the center of the tire removal machine turntable. The support frame (2) comprises a frame (21), a first motor (22), a screw (23), and a screw seat (24); the lower end of the frame (21) is fixedly connected to the base (1); the first motor (22) is fixedly connected to the upper end of the frame (21); the screw (23) is fixedly connected to the output end of the first motor (22), and the screw (23) is connected to the frame (21) via a bearing; the screw seat (24) is connected to the screw (23) via a thread, and the screw seat (24) is attached to the inner surface of the frame (21); a double-layer slide groove (25) is provided on the screw seat (24), and a double-layer slide bar (26) is fixedly connected to the side of the inner surface of the frame (21), and the double-layer slide groove (25) is slidably connected to the double-layer slide bar (26); The first mounting seat (4) comprises a first seat body (41), a first roller (42), and a second motor (43); the laser rangefinder (6) is fixedly connected to the first seat body (41); the first roller (42) is rotatably connected to the first seat body (41), and the first roller (42) is rollingly connected to the slide rail (3); the second motor (43) is fixedly connected to the first seat body (41), and an output end of the second motor (43) is connected to one of the first rollers (42); The second mounting seat (5) comprises a second seat body (51), a second roller (52), and a third motor (53); the angle measuring assembly (7) is connected to the second seat body (51); the second roller (52) is rotatably connected to the second seat body (51), and the second roller (52) is rollingly connected to the slide rail (3); the third motor (53) is fixedly connected to the second seat body (51), and an output end of the third motor (53) is connected to one of the second rollers (52); A spring (8) is fixedly connected to the side of the second seat body (51); a connecting platform (9) is fixedly connected to one end of the spring (8) away from the second seat body (51); a telescopic guide mechanism (10) is provided on the side of the connecting platform (9) close to the spring (8); the other end of the guide mechanism (10) is connected to the side of the seat body of the base (1); a telescopic member (11) is fixedly connected to the side of the connecting platform (9) away from the spring (8); the telescopic end of the telescopic member (11) is fixedly connected to a bearing platform (12); the displacement measuring wheel is fixedly connected to the bearing platform (12); an elastic measuring sensor is provided on the spring (8); a support plate (13) is fixedly connected to the straight portion; when the second mounting seat (5) is located in the straight portion, a side of the connecting platform (9) close to the spring (8) is in contact with the support plate (13).

2. The tire changer turntable stability adjustment device according to claim 1, characterized in that: The angle measurement assembly (7) comprises an encoder mounted on the second mounting seat (5) and a sensor connected to the encoder, so that the encoder is fixedly connected to the axis of the tire changer turntable, and the sensor is electrically connected to the controller.

3. The tire changer turntable stability adjustment device according to claim 1, characterized in that: The slide rail (3) comprises an upper straight portion, a lower straight portion and a semicircular portion, the semicircular portion being connected to a screw seat (24) via a connecting frame, the upper straight portion being rotated on the upper end of the semicircular portion, and the lower straight portion being fixedly connected to the lower end of the semicircular portion.

4. The tire changing machine turntable stability adjustment device according to claim 3, characterized in that: A first screw hole is provided on the semicircular portion, a second screw hole is provided inside the upper straight portion, the first screw hole is aligned with the second screw hole, and the first screw hole and the second screw hole are connected to the same screw rod (14).

5. The tire changing machine turntable stability adjustment device according to claim 4, characterized in that: The end of the screw rod (14) close to the support frame (2) is fixedly connected to a hand wheel (15); when the upper straight portion is disassembled, the hand wheel (15) can be slidably connected between the double-layer slide bars (26).

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