A positioning and rotating device for tire inner support

Abstract

The present application provides a positioning and rotating device for tire inner support, including a rotating mechanism, a supporting mechanism and a driving mechanism, wherein the rotating mechanism includes a first rotating shaft and a second rotating shaft movably connected to the first rotating shaft; the supporting mechanism includes a first supporting active disk, a second supporting active disk and a slider, the slider is slidably connected to the first supporting active disk and the second supporting active disk through a pin, and the second supporting active disk is provided with a supporting and positioning assembly for supporting the inner wall of the tire tread; the driving mechanism includes a first rotating driving disk and a second rotating driving disk and a driving motor, the first rotating driving disk is movably connected to the first rotating shaft, the second rotating driving disk is movably connected to the second rotating shaft, and the driving motor is fixedly mounted on the second rotating shaft. The present application can support and fix the tire lip and the inner wall of the tire tread respectively through the supporting mechanism, realize the reciprocating rotation of the tire through the rotating mechanism, and crush the tire, so that the obtained rubber powder is of high quality.

Description

Technical Field

[0001] The present application relates to the field of processing and manufacturing technology, and in particular to a positioning and rotating device for a tire inner support. Background Art

[0002] Recycled rubber is the main way to utilize waste rubber. The direct application of rubber powder is an internationally recognized environmentally friendly and resource-based harmless processing and utilization method for waste tires. As a major raw material for rubber powder production, the recycling and reproduction methods of waste tires include traditional room temperature crushing, low temperature crushing, and ultra-fine crushing.

[0003] At present, the safe and environmentally friendly rubber powder production method for waste radial tires is mainly ultra-high pressure water jet crushing. When using the ultra-high pressure water jet crushing method, the tire usually needs to be rotated as a moving part, and the water jet does the feeding motion to crush the tire. Therefore, the tire support method and the distance from the water jet nozzle will directly affect the quality of the crushed rubber powder.

[0004] In the prior art, since there is no supporting mechanism inside the tire, during the process of water jet crushing the tire, as the tire is crushed into rubber powder, the tire will deform during the crushing process, thereby crushing the tire fabric and mixing it into the rubber powder, seriously affecting the production quality of the rubber powder. Summary of the invention

[0005] The present application provides a positioning and rotating device for tire internal support to solve the problem in the prior art that there is no supporting mechanism inside the tire, which cannot support the tire bead and the inner wall of the tire tread, so that the tire curtain will be broken together during the crushing process, and the quality of the audio and video rubber powder will be affected.

[0006] The present application provides a positioning and rotating device for a tire inner support, specifically comprising:

[0007] A rotating mechanism, the rotating mechanism comprising a first rotating shaft and a second rotating shaft movably connected to the first rotating shaft;

[0008] A support mechanism, the support mechanism comprises a first support active disk, a second support active disk and a slider, the first support active disk is detachably connected to the first rotating shaft, the second support active disk is detachably connected to the second rotating shaft, the slider is slidably connected to the first support active disk and the second support active disk through a pin shaft, wherein a support positioning assembly is provided on the second support active disk, and the support positioning assembly is used to support the inner wall of the tire tread;

[0009] The driving mechanism is used to drive the rotating mechanism to rotate relative to each other, thereby driving the supporting mechanism to rotate relative to each other. The driving mechanism includes a first rotating driving disk, a second rotating driving disk and a driving motor. The first rotating driving disk is movably connected to the first rotating shaft, the second rotating driving disk is movably connected to the second rotating shaft, and the driving motor is fixedly mounted on the second rotating shaft.

[0010] By adopting the above technical solution, when the first rotary drive disk and the second rotary drive disk rotate relative to each other, the first rotating shaft and the second rotating shaft can be driven to move relative to each other. When the first rotating shaft and the second rotating shaft rotate relative to each other, the first supporting active disk and the second supporting active disk respectively fixedly installed therewith are driven to rotate relative to each other.

[0011] In a preferred embodiment of the present application, the support positioning assembly includes a cylinder, a scissors-type linkage mechanism and a linear guide rail, one end of the scissors-type linkage mechanism is connected to the cylinder, and the other end is connected to the linear guide rail, and the cylinder and the linear guide rail are both fixedly mounted on the second support active disk.

[0012] In a preferred embodiment of the present application, an electro-pneumatic slip ring is fixedly mounted on the first rotating shaft, and the electro-pneumatic slip ring provides a pressure gas source and a power source for the cylinder.

[0013] In a preferred embodiment of the present application, when the cylinder contracts, it drives the linear guide rail to contract, driving the scissor-type linkage mechanism to extend, so as to support and fix the inner wall of the tire tread.

[0014] By adopting the above technical solution, when the electric pneumatic slip ring continues to provide pressure air source and power supply to the cylinder, all four cylinders are extended and retracted, so that all four sets of scissor-type connecting rod mechanisms are extended to support the inner wall of the tire tread, and the linear guide rail is set to a multi-layer structure, which can meet the support requirements of different types of tires.

[0015] In a preferred embodiment of the present application, a driving cylinder is installed between the first rotary driving disk and the second rotary driving disk, and the first rotary driving disk and the second rotary driving disk are driven to rotate relative to each other by the extension and contraction of the driving cylinder.

[0016] In a preferred embodiment of the present application, when the slider and the scissor-type linkage mechanism are both in a state of fully supporting the tire, the driving cylinder is automatically locked.

[0017] In the above technical solution, when the driving cylinder is automatically locked, the driving motor drives the second rotating shaft to rotate, thereby driving the entire device to rotate, so that the tire rotates at the same speed under the support of the inner support mechanism, and the tire is crushed during the rotation process.

[0018] In a preferred embodiment of the present application, an arc-shaped slot is formed on the first active supporting disk, and the arc-shaped slot is used to clamp the slider.

[0019] In a preferred embodiment of the present application, a linear slot is formed on the second active supporting disk, and the linear slot is used to clamp the slider.

[0020] In a preferred embodiment of the present application, when the tire needs support, the driving mechanism drives the first supporting active disk to rotate, driving the arc-shaped slot hole to drive the pin shaft and the slider to move along the linear slot hole on the second supporting active disk, so that the slider supports the tire bead.

[0021] In the above technical solution, when the first supporting active disk and the second supporting active disk rotate relative to each other, the arc-shaped slot hole on the first supporting active disk and the linear slot hole on the second supporting active disk are relatively displaced, thereby driving the pin shaft to move along the linear slot hole on the second supporting active disk, and further driving the slider to move along the linear slot hole, thereby achieving the effect of supporting the tire bead.

[0022] In a preferred embodiment of the present application, the device also includes a fixing mechanism, which includes a bearing seat, a bearing seat bracket, and a motor bracket. The bearing seat is used to install the first rotating shaft, the bearing seat is installed on the bearing seat bracket, and the motor bracket is used to fix the drive motor.

[0023] Compared with the prior art, the positioning and rotating device for tire inner support of the present application has the following beneficial effects:

[0024] The present application supports and fixes the tire bead through a slider in the support mechanism, supports and fixes the inner wall of the tire tread through the cooperation of the support positioning assembly in the support mechanism, and then automatically locks the driving cylinder in the driving mechanism and the cylinder in the support positioning assembly, and the driving motor drives the second rotating shaft in the rotating mechanism to rotate, driving the device of the present application to rotate, so that the tire rotates at the same speed under the support of the support mechanism, and during the rotation of the tire, it is crushed by an ultra-high pressure water jet. The tire bead and the inner wall of the tire tread are supported and fixed respectively, so that the support is more reliable, the structure is simpler, the efficiency of crushing rubber powder is faster, the tire is not easily deformed during the crushing process, and the situation of mixing the tire cloth curtain into the rubber powder is avoided, and the obtained rubber powder is of higher quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a cross-sectional view of the overall structure of a positioning and rotating device for a tire inner support of the present application;

[0027] Figure 2 This is a schematic diagram of the supporting state structure of the device of the present application when supporting a tire;

[0028] Figure 3 This is a schematic diagram of the structure of the first supporting active disk of the present application;

[0029] FIG4( a ) is a schematic diagram of the structure of the second supporting active disk of the present application;

[0030] FIG4( b ) is a schematic diagram of the structure of the scissor-type connecting rod mechanism on the second supporting active disk of the present application extending out;

[0031] Figure 5 This is a schematic diagram of the overall structure of a positioning and rotating device for a tire inner support of the present application;

[0032] Description of reference numerals:

[0033] Among them, 100-rotation mechanism, 101-first rotation axis, 1010-electric pneumatic slip ring, 102-second rotation axis; 200-support mechanism, 201-first support active disk, 2010-arc-shaped slot, 202-second support active disk, 2020-linear slot, 2021-cylinder, 2022-scissor-type connecting rod mechanism, 2023-linear guide, 203-slider, 204-pin; 300-driving mechanism, 301-first rotary driving disk, 302-second rotary driving disk, 303-driving motor, 304-driving cylinder; 400-fixing mechanism, 401-bearing seat, 402-bearing seat bracket, 403-motor bracket, 404-bearing, 405-expansion sleeve, 406-coupling. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the embodiments of the present application, it should be noted that the orientation or position relationship indicated by the term "upper" or the like is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings.

[0040] The terms "first", "second", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise indicated. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, for example, they can be implemented in an order other than those given in the diagrams or descriptions of the embodiments of this application.

[0041] In addition, the terms "including," "having," and "installed with," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed, but may include other components not expressly listed or inherent to such products or devices.

[0042] Example

[0043] See also Figures 1 to 5 , which is an overall structural diagram and a partial structural schematic diagram of a positioning and rotating device for a tire inner support of the present application.

[0044] like Figure 1 and Figure 5 As shown, the present application provides a positioning and rotating device for a tire inner support, comprising:

[0045] A rotating mechanism 100, wherein the rotating mechanism 100 comprises a first rotating shaft 101 and a second rotating shaft 102 movably connected to the first rotating shaft 101;

[0046] A support mechanism 200, wherein the support mechanism 200 comprises a first support active disk 201, a second support active disk 202 and a slider 203, wherein the first support active disk 201 is detachably connected to the first rotating shaft 101, and the second support active disk 202 is detachably connected to the second rotating shaft 102, and the slider 203 is slidably connected to the first support active disk 201 and the second support active disk 202 via a pin 204, wherein a support positioning assembly is provided on the second support active disk 202, and the support positioning assembly is used to support the inner wall of the tire tread;

[0047] The driving mechanism 300 is used to drive the rotating mechanism 100 to rotate relative to each other, thereby driving the supporting mechanism 200 to rotate relative to each other. The driving mechanism 300 includes a first rotary driving disk 301 and a second rotary driving disk 302 and a driving motor 303. The first rotary driving disk 301 is movably connected to the first rotating shaft 101, the second rotary driving disk 302 is movably connected to the second rotating shaft 102, and the driving motor 303 is fixedly mounted on the second rotating shaft 102.

[0048] The fixing mechanism 400 includes a bearing seat 401, a bearing seat bracket 402, and a motor bracket 403. The bearing seat 401 is used to install the first rotating shaft 101. The bearing seat 401 is installed on the bearing seat bracket 402. The motor bracket 403 is used to fix the drive motor 303.

[0049] like Figure 1 As shown, in this embodiment, the fixing mechanism 400 also includes a bearing 404, a clamping sleeve 405 and a coupling 406. The first rotating shaft 101 is connected to the second rotating shaft through the bearings 404 arranged at both ends, the first rotating shaft 101 is fixedly connected to the first supporting active disk 201 through the clamping sleeve 405, the first rotating shaft 101 is fixedly connected to the first rotary drive disk 301 through the clamping sleeve 405, the second rotating shaft 102 is connected to the second supporting active disk 202 through a key connection, and the second rotating shaft 102 is fixedly connected to the second rotary drive disk 302 through the clamping sleeve 405; it should be particularly noted that the clamping sleeve 405 fixes the above-mentioned components, and other detachable or non-detachable connection methods are all acceptable, such as welding or fixed connection using screws and nuts.

[0050] As shown in Figure 4(a), in this embodiment, the support positioning assembly includes a cylinder 2021, a scissors-type linkage mechanism 2022 and a linear guide 2023, one end of the scissors-type linkage mechanism 2022 is connected to the cylinder 2021, and the other end is connected to the linear guide 2023, and the cylinder 2021 and the linear guide 2023 are both fixedly mounted on the second support active disk 202.

[0051] like Figure 1 As shown, in this embodiment, an electric pneumatic slip ring 1010 is fixedly installed on the first rotating shaft 101, and the electric pneumatic slip ring 1010 provides a pressure gas source and a power supply for the cylinder 2021; when the cylinder 2021 contracts, the linear guide rail 2023 is driven to contract, and the scissor-type connecting rod mechanism 2022 is driven to extend, so as to realize the support and fixation of the inner wall of the tire tread, and the support state is as shown in FIG. Figure 2 As shown ( Figure 2 The outer circle in the figure represents the tire), the extended state of the scissor-type connecting rod mechanism 2022 is shown in FIG4( b ), and after the inner wall of the tire tread is supported and fixed, the cylinder 2021 is automatically locked.

[0052] It should be noted that, in the present embodiment, four cylinders 2021, four scissor-type linkage mechanisms 2022 and four linear guide rails 2023 are provided, and each set of scissor-type linkage mechanisms 2022 is respectively connected to a cylinder 2021 and a linear guide rail 2023, but the present application does not limit the number in actual use.

[0053] By adopting the above technical solution, when the electric pneumatic slip ring 1010 continues to provide pressure air source and power supply to the cylinder 2021, the four cylinders 2021 are all extended and retracted, so that the four sets of scissor-type connecting rod mechanisms 2022 are all extended to achieve the function of supporting the inner wall of the tire tread, and the linear guide rail 2023 is set to a multi-layer structure, which can meet the support requirements of different types of tires.

[0054] Furthermore, in this embodiment, a slot and a through hole (not marked in the figure) are provided on the slider 203, the slot (not marked in the figure) is engaged with the first supporting active disk 201 and the second supporting active disk 202, and the through hole (not marked in the figure) is used to install the pin shaft 204.

[0055] like Figure 1 and Figure 5 As shown, a driving cylinder 304 is installed between the first rotary driving disk 301 and the second rotary driving disk 302 , and the first rotary driving disk 301 and the second rotary driving disk 302 are driven to rotate relative to each other by the extension and contraction of the driving cylinder 304 .

[0056] Further, in this embodiment, when the slider 204 and the scissor-type connecting rod mechanism 2022 are both in a state of fully supporting the tire, that is, Figure 2 The status shown ( Figure 2 The outer circle in the figure represents the tire), and the driving cylinder 304 is automatically locked.

[0057] It should be noted that, in the present embodiment, the number of the driving cylinders 304 is set to 2, but the present application does not limit the specific number of driving cylinders 304 to be used.

[0058] In the above technical solution, when the driving cylinder 304 is automatically locked, the driving motor 303 drives the second rotating shaft 102 to rotate, thereby driving the entire positioning and rotating device to rotate, so that the tire rotates at the same speed under the support of the internal support mechanism, that is, the support mechanism 200. During the rotation of the tire, an ultra-high pressure water jet is used to crush the tire and the waste tire is made into rubber powder.

[0059] like Figure 3 As shown, the first supporting active disk 201 is provided with an arc-shaped slot 2010, and the arc-shaped slot 2010 is used to clamp the slider 203. Figure 2 and Figure 5 As shown; further, in this embodiment, as Figure 3 As shown, both ends of the arc-shaped slot 2010 are set to a closed state.

[0060] As shown in FIG. 4( a ) and FIG. 4( b ), the second supporting active disk 202 is provided with a linear slot 2020, and the linear slot 2020 is used to engage the slider 203. Figure 2 As shown; further, as shown in Figure 4(b), in this embodiment, the end of the linear slot 2020 close to the second rotating axis 102 (i.e., the position of the center circle in Figure 4(b)) is set to a closed state, and the end away from the second rotating axis 102 is set to an open state.

[0061] It should be particularly noted that, in the present embodiment, the arc-shaped slots 2010 and the linear slots 2020 are both set to 4, and are evenly distributed on the first supporting active disk 201 and the second supporting active disk 202, respectively. Correspondingly, the sliders 203 clamped on the arc-shaped slots 2010 and the linear slots 2020 are also relatively set to 4; in addition, in the present embodiment, the supporting positioning components are also correspondingly set to four, and are evenly distributed between the adjacent linear slots 2020 opened on the second supporting active disk 202.

[0062] In this embodiment, when the tire needs support, the driving mechanism 300 drives the first supporting active disk 201 to rotate, driving the arc-shaped slot hole 2010 to drive the pin shaft 204 and the slider 203 to move along the linear slot hole 2020 on the second supporting active disk 202, so that the slider 203 supports the tire bead.

[0063] In the above technical solution, when the first supporting active disk 201 and the second supporting active disk 202 rotate relative to each other, the arc-shaped slot hole 2010 on the first supporting active disk 201 and the linear slot hole 2020 on the second supporting active disk 202 are relatively displaced, thereby driving the pin shaft 204 to move along the linear slot hole 2020 on the second supporting active disk 202, and further driving the slider 203 to move along the linear slot hole 2020, thereby achieving the function of supporting the tire bead.

[0064] The specific use process of the positioning and rotating device for tire inner support of the present application is as follows:

[0065] First, the tire bead support process is completed, specifically including: the driving motor 303 is braked, at this time, the second rotating shaft 102 connected to the driving motor 303 and the second supporting active disk 202 and the second rotating driving disk 302 connected to the second rotating shaft 102 are fixed, and the two driving cylinders 304 are extended and retracted, so that the first rotating driving disk 301 rotates relative to the second rotating driving disk 302, that is, the second rotating driving disk 302 is fixed, and the first rotating driving disk 301 rotates, further driving the first supporting active disk 20 The first support active disk 201 rotates relative to the second support active disk 202, that is, the second support active disk 202 is fixed and the first support active disk 201 rotates (all relative rotations in the present application are one fixed and one rotating). At this time, the four arc-shaped slots 2010 and the four linear slots 2020 are relatively displaced. The arc-shaped slots 2010 on the first support active disk 201 drive the pins 204 to drive the slider 203 to move along the linear slots 2020 on the second support active disk 202, so as to achieve the purpose of supporting the tire bead.

[0066] Secondly, the process of supporting the inner wall of the tire tread is completed. Specifically, the four cylinders 2021 arranged on the second supporting active plate 202 are extended and retracted under the condition that the electric pneumatic slip ring 1010 continuously provides pressure air source and power source, driving the scissor-type connecting rod mechanism 2022 to expand and extend along the linear guide rail 2023, so as to support the inner wall of the tire tread.

[0067] Finally, when the four sliders 203 and the four sets of scissor-type linkage mechanisms 2022 all reach a state of fully supporting the tire, as shown in FIG. Figure 2As shown, the two driving cylinders 304 are automatically locked at the same time to maintain the supporting and fixing effect of the slider 203 on the tire bead, and the four cylinders 2021 on the second supporting active disk 202 are also automatically locked to maintain the supporting and fixing effect of the scissor-type connecting rod mechanism 2022 on the inner wall of the tire tread. At this time, the driving motor 303 rotates, driving the second rotating shaft 102 and the second rotating driving disk 302 and the second supporting active disk 202 connected thereto to rotate. Furthermore, due to the locking effect of the driving cylinder 304 and the cylinder 2021, the first rotating shaft 101 and the first rotating driving disk 301 and the first supporting active disk 201 connected thereto rotate at the same time, that is, the entire positioning and rotating device is driven to rotate, and the tire rotates at the same speed under the action of the supporting mechanism 200. During the rotation of the tire, it is more convenient for the ultra-high pressure water jet to crush the tire, and the waste tire is made into better quality rubber powder.

[0068] The embodiments provided in this application are only the best examples under the overall concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A positioning and rotating device for a tire inner support, characterized in that: The positioning and rotating device comprises: A rotating mechanism (100), the rotating mechanism (100) comprising a first rotating shaft (101) and a second rotating shaft (102) movably connected to the first rotating shaft (101); A support mechanism (200), the support mechanism (200) comprising a first support active disk (201), a second support active disk (202) and a slider (203), the first support active disk (201) being detachably connected to the first rotating shaft (101), the second support active disk (202) being detachably connected to the second rotating shaft (102), the slider (203) being slidably connected to the first support active disk (201) and the second support active disk (202) via a pin (204), wherein a support positioning assembly is provided on the second support active disk (202), and the support positioning assembly is used to support the inner wall of a tire tread; The support positioning assembly comprises a cylinder (2021), a scissor-type connecting rod mechanism (2022) and a linear guide rail (2023); one end of the scissor-type connecting rod mechanism (2022) is connected to the cylinder (2021), and the other end is connected to the linear guide rail (2023); the cylinder (2021) and the linear guide rail (2023) are both fixedly mounted on the second supporting active disk (202); An electric pneumatic slip ring (1010) is fixedly mounted on the first rotating shaft (101), and the electric pneumatic slip ring (1010) provides a pressure gas source and a power source for the cylinder (2021); When the cylinder (2021) contracts, it drives the linear guide rail (2023) to contract, driving the scissor-type connecting rod mechanism (222) to extend, so as to support and fix the inner wall of the tire tread; a driving mechanism (300) for driving the rotating mechanism (100) to rotate relative to one another, thereby driving the supporting mechanism (200) to rotate relative to one another, the driving mechanism (300) comprising a first rotary driving disk (301), a second rotary driving disk (302) and a driving motor (303), the first rotary driving disk (301) being movably connected to the first rotating shaft (101), the second rotary driving disk (302) being movably connected to the second rotating shaft (102), and the driving motor (303) being fixedly mounted on the second rotating shaft (102); A driving cylinder (304) is installed between the first rotary drive disk (301) and the second rotary drive disk (302), and the first rotary drive disk (301) and the second rotary drive disk (302) are driven to rotate relative to each other by the extension and contraction of the driving cylinder (304).

2. A positioning and rotating device for a tire inner support according to claim 1, characterized in that: When the slider (204) and the scissor-type connecting rod mechanism (2022) are both in a state of supporting the tire, the driving cylinder is automatically (304) locked.

3. A positioning and rotating device for a tire inner support according to claim 1, characterized in that: The first active supporting disk (201) is provided with an arc-shaped slot hole (2010), and the arc-shaped slot hole (2010) is used for clamping the slider (203).

4. A positioning and rotating device for a tire inner support according to claim 3, characterized in that: The second active supporting disk (202) is provided with a linear slot (2020), and the linear slot (2020) is used for clamping the slider (203).

5. A positioning and rotating device for a tire inner support according to claim 4, characterized in that: When the tire needs support, the driving mechanism (300) drives the first supporting active disk (201) to rotate, driving the arc-shaped slot hole (2010) to drive the pin shaft (204) and the slider (203) to move along the linear slot hole (2020) on the second supporting active disk (202), so that the slider (203) supports the tire bead.

6. A positioning and rotating device for a tire inner support according to claim 1, characterized in that: The device further comprises a fixing mechanism (400), wherein the fixing mechanism (400) comprises a bearing seat (401), a bearing seat bracket (402) and a motor bracket (403), wherein the bearing seat (401) is used for mounting the first rotating shaft (101), the bearing seat (401) is mounted on the bearing seat bracket (402), and the motor bracket (403) is used for fixing and mounting the driving motor (303).

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