A tire changing device for a tire crane

Abstract

The present invention proposes a tire changing device for a tire crane. The present invention includes a base, a supporting mechanism, a flipping mechanism and a driving mechanism; the supporting mechanism includes a supporting frame and a supporting seat, the supporting seat can perform reciprocating linear motion along the Z-axis direction to cooperate with the bearing seat on the tire for supporting the tire, and the supporting frame can perform reciprocating linear motion along the Y-axis direction to make the supporting mechanism close to or away from the tire crane; the flipping mechanism includes a rotating seat and a rotating frame, the rotating frame can perform rotating motion to achieve the switching of the tire between the horizontal and vertical directions, and the rotating seat can perform reciprocating linear motion along the X-axis direction to make the flipping mechanism close to or away from the supporting mechanism; the driving mechanism is respectively connected to the supporting frame, the supporting seat, the rotating seat, and the rotating frame. The present invention has an independent structure, a reasonable design, convenient tire replacement, low labor intensity, shortened replacement time, realizes the separation of man and machine, avoids unsafe factors under the cooperation of a forklift, has good versatility, and is economical and practical.

Description

Technical Field

[0001] The present invention relates to the technical field of tire crane auxiliary equipment, in particular to a tire changing device for a tire crane. Background Art

[0002] A rubber-tyred container gantry crane (RTG), or simply a tire crane, is a specialized machine used for stacking cargo at container terminals. It consists of a gantry consisting of two front and rear door frames and a bottom beam, supported by rubber pneumatic tires, and moves across the cargo yard. Simply put, a TTG is a mobile crane with tires on its underside; alternatively, it is a fully revolving crane with a lifting mechanism mounted on a specialized chassis consisting of heavy-duty tires and axles. In actual operation, the operator stacks containers by operating the gantry, trolley, lifting mechanism, and telescopic spreader. A traveling trolley equipped with a container spreader travels along tracks on the door frame crossbeams, loading and unloading containers from the chassis and performing stacking operations.

[0003] During operation, the tire on the chassis has the greatest load-bearing capacity. Coupled with wear and tear during operation, this tire needs to be replaced. Currently, tire removal and installation on a tire crane is primarily performed by personnel working with a forklift. This method is complex and tedious, requiring the cooperation of 6-7 personnel, resulting in high labor intensity and low replacement efficiency. Furthermore, since the tire crane is a large and heavy machine with each component weighing a great deal, this method also poses certain safety risks. Summary of the Invention

[0004] The purpose of the present invention is to provide a tire replacement device for a tire crane, which solves the problem in the prior art that the tire replacement process of the tire crane lacks special tools, resulting in high labor intensity, low replacement efficiency and potential safety hazards.

[0005] In order to solve the above technical problems, the technical solution of the present invention is implemented as follows: it includes a base, a support mechanism, a flip mechanism and a driving mechanism; the base plays a fixing and supporting role; the supporting mechanism is slidably connected to the base, including a support frame and a support seat arranged on the support frame, the support seat cooperates with the bearing seat on the tire to support the tire, the support seat can perform reciprocating linear motion along the Z-axis direction, and the support frame can perform reciprocating linear motion along the Y-axis direction to make the supporting mechanism close to or away from the tire crane; the flip mechanism is arranged on one side of the supporting mechanism, including a rotating seat and a rotating frame arranged on the rotating seat, the rotating frame is rotatably connected to the rotating seat, the rotating frame is provided with a clamping arm for fixing or releasing the tire, the rotating frame can perform rotational motion to achieve switching between the horizontal and vertical directions of the tire, and the rotating seat can perform reciprocating linear motion along the X-axis direction to make the flip mechanism close to or away from the supporting mechanism; the driving mechanism is respectively connected to the supporting frame, the supporting seat, the rotating seat, and the rotating frame to achieve reciprocating linear motion of the supporting frame, the support seat and the rotating seat, and rotational motion of the rotating frame.

[0006] The support seat in the support mechanism of the present invention moves upward along the Z-axis direction, cooperates with the bearing seat on the tire, and supports the tire on the tire crane; the support frame drives the support seat and the tire installed thereon to move forward along the Y-axis direction, so that the tire is away from the tire crane; the rotating frame in the flipping mechanism rotates to the left, so that the rotating frame is located on the left side of the rotating seat, and the rotating seat drives the rotating frame to move to the left, so that the flipping mechanism is close to the support mechanism; the clamping arm fixes the tire so that the tire is fixed on the rotating frame; the support seat in the support mechanism moves downward along the Z-axis direction, so that the support seat is separated from the tire, and the support frame drives the support seat to move backward along the Y-axis direction to leave operating space; the rotating frame rotates to the right, so that the rotating frame is located on the top of the rotating seat, and the rotating seat drives the rotating frame to move right, so that the flipping mechanism is away from the supporting mechanism Support mechanism, at this time, release the clamping arm, and use a forklift to remove the tire; then, place a new tire on the rotating frame; the rotating seat drives the rotating frame to move to the left again, and the rotating frame in the flipping mechanism rotates to the left again, so that the rotating frame carries the new tire and rotates to the left side of the rotating seat; at the same time, the support frame drives the supporting seat to move forward along the Y-axis direction, and the flipping mechanism approaches the support mechanism again, and the supporting seat in the supporting mechanism moves upward along the Z-axis direction, cooperating with the bearing seat on the tire to support the tire on the tire crane; release the clamping arm, and the rotating seat drives the rotating frame to move to the right again to leave operating space; the support frame drives the supporting seat and the tire installed on it to move backward along the Y-axis direction again, so that the tire reaches the balance beam position of the tire crane, and the tire replacement work is completed.

[0007] The tire changing device of the present invention has an independent structure and a reasonable design, and is convenient for tire changing. It changes the previous process requirement that tire cranes must be disassembled and assembled by multiple people with the cooperation of a forklift, liberates labor productivity, saves labor costs, shortens replacement time, and can effectively improve work efficiency by more than 20%. The present invention completes actions such as flipping and moving the tire through a driving mechanism, realizes human-machine separation, avoids unsafe factors under the cooperation of a forklift, has low labor intensity, and successfully completes tire replacement. It has good versatility and is suitable for tire replacement on most tire cranes. It can also be customized according to the size and function of the tire on site, which is economical and practical.

[0008] In a preferred embodiment, a first connecting lug is provided in the middle of the rotating frame, with a first rotation axis hole defined in the first connecting lug. A second connecting lug is provided on the rotating base on a side near the support mechanism, with a second rotation axis hole defined in the second connecting lug. The first rotation axis hole and the second rotation axis hole are connected by a rotation axis. The provision of the first and second connecting lugs facilitates the rotational connection between the rotating frame and the rotating base, while also facilitating the stable placement of the rotating frame on top of the rotating base, resulting in a simple structure.

[0009] As a preferred embodiment, a positioning block is provided at the bottom of the rotating frame, and a positioning hole is provided on the rotating base that is compatible with the positioning block. The positioning holes are located at the top of the rotating base and on the side surface near the supporting mechanism. The provision of the positioning holes and positioning blocks, on the one hand, ensures a stable fit between the rotating frame and the top of the rotating base, preventing the rotating frame from falling off the rotating base when the rotating base drives the rotating frame to move left or right, i.e., along the X-axis, thereby ensuring a secure connection. On the other hand, after the rotating frame rotates, it can stably fit with the side surface of the rotating base, preventing the rotating frame from swinging along the rotating base when the rotating base drives the rotating frame to move left or right, i.e., along the X-axis, thereby ensuring a secure connection and smooth tire movement.

[0010] As a preferred embodiment, the clamping arm includes a bracket, a sleeve and an arm body. The bracket is sleeved inside the sleeve, and the arm body is movably connected to the bracket through the sleeve. The sleeve is provided with a first limiting hole, the bracket is provided with a second limiting hole adapted to the first limiting hole, and the rotating frame is provided with a limiting rod for connecting the first limiting hole and the second limiting hole. The clamping arm can rotate to complete the fixing or release of the tire; the clamping arm can also be extended and retracted to complete the fixing of tires of different specifications; specifically, the arm body is used to fix the tire, and the sleeve can rotate around the bracket; at the same time, the sleeve can also be pulled out or retracted along the surface of the bracket to complete the extension and retraction of the arm body. After the sleeve is adjusted along the surface of the bracket, it is positioned by the limiting rod, thereby ensuring the state of the arm body and making it easy to use; usually, one end of the connecting rod is rotatably connected to the rotating frame, and the other end can be inserted into the first limiting hole and enter the second limiting hole.

[0011] As a preferred embodiment, the support frame is rectangular and has observation windows. The support frame is a frame with a support base on top. Observation windows are provided on the left and right sides of the support frame. This allows for observation of the support frame's status and saves on consumables.

[0012] As a preferred embodiment, the base is provided with a first slide rail arranged along the Y-axis direction, and the bottom of the support mechanism is provided with a first slider adapted to the first slide rail; the first slider is provided with a second slide rail arranged along the Z-axis direction, the second slide rail is adapted to the support frame, and the support frame is slidably connected to the second slide rail; the base is provided with a third slide rail arranged along the X-axis direction, and the bottom of the rotating seat is provided with a third slider adapted to the third slide rail. The cooperation between the first slider and the first slide rail completes the reciprocating linear motion of the support mechanism along the Y-axis direction; the cooperation between the second slide rail and the support frame completes the reciprocating linear motion of the support frame in the Z-axis direction; and the cooperation between the third slide rail and the third slider completes the reciprocating linear motion of the rotating seat in the X-axis direction. All reciprocating linear motions in the present invention are smooth and stable.

[0013] As a preferred embodiment, there are two first slide rails, each of which is provided with a first slider; there are two second slide rails on each of which are respectively connected to the front and rear sides of the support frame; there are two third slide rails, each of which is U-shaped, and the third slider is located on the inner side of the rotating seat. The support mechanism supports the tire from the left and right sides, and the first slide rail is usually also provided with a limit block to limit the movement of the first slider to prevent it from sliding off the first slide rail; the second slide rail slides with the support frame from the outside of the support frame, and the second slide rail on the same support frame is arranged along the front-to-back direction. The third slide rail opens outward, and the rotating seat is located on the outside of the third slide rail, and the entire rotating seat has a neat and beautiful appearance.

[0014] As a preferred embodiment, the drive mechanism includes a first driver connected to the support base, a second driver connected to the support frame, a third driver connected to the rotating base, and a fourth driver connected to the rotating frame. The drive mechanism is typically a cylinder, a motor, or the like. The output shaft of the first driver is directly connected to the support base, the second driver drives the support frame, i.e., the entire support mechanism, to move, the output shaft of the third driver is connected to the rotating base, and the third driver drives the rotating base, i.e., the entire flipping mechanism, to reciprocate linear motion. The fourth driver is disposed within the rotating base and is arranged at an angle. The output shaft of the fourth driver is connected to the middle of the rotating frame, and the fourth driver drives the rotating frame to flip.

[0015] As a preferred embodiment, the base is provided with a forklift opening for the forklift blade to enter and exit. The forklift moves the entire tire changing device through the forklift opening on the base, positioning it in a suitable location. Of course, rolling wheels can also be provided on the bottom of the base, and the movement of the base, i.e., the entire tire changing device, can be controlled by a controller to further facilitate positioning.

[0016] A preferred embodiment further includes a lifting mechanism disposed outside the support mechanism and comprising a lifting seat. The lifting seat cooperates with a fixing bracket on the balance beam to lift the balance beam. The lifting seat is connected to a fifth actuator that causes the lifting seat to perform reciprocating linear motion along the Y-axis. The provision of the lifting mechanism allows the balance beam to be lifted before tire removal, facilitating tire removal and further improving tire replacement efficiency.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the tire changing device of the present invention has an independent structure, a scientific and reasonable design, and is convenient for tire changing. It changes the previous process requirement that tire cranes must be disassembled and assembled by multiple people with the cooperation of a forklift, liberates labor productivity, reduces labor intensity, saves labor costs, shortens replacement time, and can effectively improve work efficiency by more than 20%; the present invention completes the flipping and moving of tires and other actions through a driving mechanism, realizes the separation of man and machine, avoids unsafe factors under the cooperation of a forklift, and successfully completes the tire replacement; it has good versatility, is suitable for tire replacement of most tire cranes, and can also be customized according to the size and function of the tires on site, which is economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the tire changing device provided by the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the main structure;

[0021] Figure 3 for Figure 1 A side structural diagram of

[0022] Figure 4 for Figure 1 Schematic diagram of the top view structure;

[0023] In the figure: 10-base; 11-first slide rail; 12-forklift opening; 13-third slide rail; 20-support mechanism; 21-first slider; 22-second slide rail; 23-first drive; 24-support frame; 25-support seat; 30-flip mechanism; 31-rotating seat; 32-rotating frame; 33-clamping arm; 34-fourth drive; 35-third drive; 50-tire; 51-bearing seat. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] See attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 The present invention comprises a base 10, a support mechanism 20, a tilting mechanism 30, and a drive mechanism. The base 10 is located at the bottom and provides both stability and support. Typically, the base 10 is provided with a forklift opening 12 for access by a forklift. A forklift uses the opening 12 on the base 10 to move the entire tire changing device to a desired location. Alternatively, rolling wheels can be provided at the bottom of the base 10, allowing the base 10, and thus the entire tire changing device, to be moved and positioned in a desired location through a controller, further facilitating positioning. The support mechanism 20 of the present invention is slidably connected to the base 10. The support mechanism 20 includes a support frame 24 and a support seat 25 arranged on the support frame 24. The support seat 25 cooperates with the bearing seat 51 on the tire 50 to support the tire 50. The support seat 25 can perform reciprocating linear motion along the Z-axis direction, and the support frame 24 can perform reciprocating linear motion along the Y-axis direction to make the support mechanism 20 close to or away from the tire crane; the flip mechanism 30 is arranged on one side of the support mechanism 20, including a rotating seat 31 and a rotating frame 32 arranged on the rotating seat 31. The rotating frame 32 is provided on the rotating frame 31. 2 is rotatably connected to the rotating base 31. The rotating frame 32 is provided with a clamping arm 33 for fixing or releasing the tire 50. The rotating frame 32 can rotate to achieve the switching of the tire 50 between the horizontal and vertical directions. The rotating base 31 can reciprocate linearly along the X-axis direction to make the flip mechanism 30 approach or move away from the support mechanism 20. The driving mechanism is respectively connected to the support frame 24, the support base 25, the rotating base 31, and the rotating frame 32 to achieve the reciprocating linear motion of the support frame 24, the support base 25 and the rotating base 31, and the rotational motion of the rotating frame 32.

[0026] See attached Figure 1, Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 The support seat 25 in the support mechanism 20 of the present invention moves upward along the Z-axis direction and cooperates with the bearing seat 51 on the tire 50 to support the tire 50 on the tire crane; the support frame 24 drives the support seat 25 and the tire 50 mounted thereon to move forward along the Y-axis direction, so that the tire 50 is away from the tire crane; the rotating frame 32 in the flipping mechanism 30 rotates to the left, so that the rotating frame 32 is located on the left side of the rotating seat 31, and the rotating seat 31 drives the rotating frame 32 to move to the left, so that the flipping mechanism 30 is close to the support mechanism 20; the clamping arm 33 fixes the tire 50, so that the tire 50 is fixed on the rotating frame 32; the support seat 25 in the support mechanism 20 moves downward along the Z-axis direction, so that the support seat 25 is separated from the tire 50, and the support frame 24 drives the support seat 25 to move backward along the Y-axis direction to leave operating space; the rotating frame 32 rotates to the right, so that the rotating frame 32 is located on the top of the rotating seat 31, and the rotating seat 31 drives the rotating frame 32 to move right, so that the flipping mechanism 3 0 is away from the supporting mechanism 20. At this time, the clamping arm 33 is released, and the tire 50 can be removed by a forklift or the like; then, a new tire 50 is placed on the rotating frame 32; the rotating seat 31 drives the rotating frame 32 to move left again, and the rotating frame 32 in the flipping mechanism 30 rotates left again, so that the rotating frame 32 carrying the new tire 50 rotates to the left side of the rotating seat 31; at the same time, the supporting frame 24 drives the supporting seat 25 to move forward along the Y-axis direction, and the flipping mechanism 30 approaches the supporting mechanism 20 again, and the supporting seat 25 in the supporting mechanism 20 moves upward along the Z-axis direction, cooperating with the bearing seat 51 on the tire 50 to support the tire 50 on the rotating frame 32; releasing the clamping arm 33, the rotating seat 31 drives the rotating frame 32 to move right again, leaving operating space; the supporting frame 24 drives the supporting seat 25 and the tire 50 mounted thereon to move backward along the Y-axis direction again, so that the tire 50 reaches the balance beam position of the tire crane, and the replacement of the tire 50 is completed.

[0027] See attached Figure 1In the present invention, the base 10 is further provided with a first slide rail 11 arranged along the Y-axis direction, and the bottom of the support mechanism 20 is provided with a first slider 21 adapted to the first slide rail 11; the cooperation between the first slider 21 and the first slide rail 11 completes the reciprocating linear motion of the support mechanism 20 along the Y-axis direction; there are two first slide rails 11, and each first slide rail 11 is provided with a first slider 21; the support mechanism 20 supports the tire 50 from the left and right sides, and the first slide rail 11 is usually also provided with a limit block to limit the movement process of the first slider 21 to prevent it from sliding off the first slide rail 11. The first slider 21 is provided with a second slide rail 22 arranged along the Z-axis direction, and the second slide rail 22 is adapted to the support frame 24, and the support frame 24 is slidably connected to the second slide rail 22; the cooperation of the second slide rail 22 and the support frame 24 completes the reciprocating linear motion of the support seat 25 in the Z-axis direction; there are two second slide rails 22 on each first slider 21, and the two second slide rails 22 are respectively connected to the front and rear sides of the support frame 24; the second slide rail 22 slides with the support frame 24 from the outside of the support frame 24, and the second slide rail 22 on the same support frame 24 is arranged along the front and rear directions; the support frame 24 is arranged in a rectangular shape, and an observation window is provided on the support frame 24. The support frame 24 is a frame, and a support seat 25 is provided on the top of the frame, and observation windows are provided on the left and right sides of the support frame 24. On the one hand, the state of the support frame 24 can be observed; on the other hand, consumables can also be saved. The base 10 is provided with a third rail 13 arranged along the X-axis, and a third slider adapted to the third rail 13 is provided at the bottom of the rotating base 31. The cooperation between the third rail 13 and the third slider completes the reciprocating linear motion of the rotating base 31 in the X-axis direction. The third rail 13 is provided in two pieces and is arranged in a U-shape, with the third slider located inside the rotating base 31. The third rail 13 opens outward, and the rotating base 31 is located outside the third rail 13, resulting in a neat and beautiful appearance for the entire rotating base 31. All reciprocating linear motions in the present invention are smooth and stable.

[0028] See attached Figure 1 , Attachment Figure 3 and attached Figure 4In the present invention, a first connecting ear is provided in the middle of the rotating frame 32, and a first rotating shaft hole is provided on the first connecting ear. A second connecting ear is provided on the rotating seat 31 on the side close to the support mechanism 20, and a second rotating shaft hole is provided on the second connecting ear. The first rotating shaft hole and the second rotating shaft hole are connected by a rotating shaft. The provision of the first connecting ear and the second connecting ear facilitates the rotational connection between the rotating frame 32 and the rotating seat 31. At the same time, it is also conducive to the stable placement of the rotating frame 32 on the top of the rotating seat 31, and the structure is simple. Usually, a positioning block is provided at the bottom of the rotating frame 32, and a positioning hole adapted to the positioning block is provided on the rotating seat 31. The positioning hole is located at the top of the rotating seat 31 and on the side close to the support mechanism 20. The provision of the positioning holes and the positioning blocks, on the one hand, allows the rotating frame 32 to be stably fitted with the top of the rotating base 31, preventing the rotating frame 32 from falling off the rotating base 31 when the rotating base 31 drives the rotating frame 32 to move left and right, i.e., in the X-axis direction, thereby ensuring a secure connection. On the other hand, after the rotating frame 32 rotates, it can be stably fitted with the side of the rotating base 31, preventing the rotating frame 32 from swinging along the rotating base 31 when the rotating base 31 drives the rotating frame 32 to move left and right, i.e., in the X-axis direction, thereby ensuring a secure connection and smooth movement of the tire 50. In certain preferred embodiments, the clamping arm 33 includes a bracket, a sleeve, and an arm body, the bracket being sleeved within the sleeve, the arm body being movably connected to the bracket via the sleeve, the sleeve being provided with a first limiting hole, the bracket being provided with a second limiting hole adapted to the first limiting hole, and the rotating frame 32 being provided with a limiting rod for connecting the first limiting hole and the second limiting hole. The clamping arm 33 can rotate to secure or release the tire 50; it can also extend and retract to secure tires 50 of varying sizes. Specifically, the arm is used to secure the tire 50, and the sleeve can rotate around the bracket. Simultaneously, the sleeve can be extended or retracted along the bracket surface, thereby extending and retracting the arm. After the sleeve is adjusted along the bracket surface, it is positioned by a limit rod, ensuring the arm's position and facilitating ease of use. Typically, one end of the connecting rod is rotatably connected to the rotating frame 32, while the other end can be inserted into the first limit hole and then into the second limit hole.

[0029] See attached Figure 1 and attached Figure 4The drive mechanism of the present invention includes a first driver 23 connected to the support base 25, a second driver connected to the support frame 24, a third driver 35 connected to the rotating base 31, and a fourth driver 34 connected to the rotating frame 32. The drive mechanism is typically a cylinder, a motor, or the like. The output shaft of the first driver 23 is directly connected to the support base 25 and is disposed within the support frame 24. The second driver drives the support frame 24, i.e., the entire support mechanism 20, to move. For the sake of simplicity, the second driver is not shown in the accompanying drawings. The output shaft of the third driver 35 is connected to the rotating base 31, and the third driver 35 drives the rotating base 31, i.e., the entire flipping mechanism 30, to perform reciprocating linear motion. The fourth driver 34 is disposed within the rotating base 31 and is arranged at an angle. The output shaft of the fourth driver 34 is connected to the middle portion of the rotating frame 32, and the fourth driver drives the rotating frame 32 to flip.

[0030] In addition, the present invention may further include a lifting mechanism disposed outside the support mechanism 20. The lifting mechanism includes a lifting seat that cooperates with a fixing bracket on the balance beam to lift the balance beam. The lifting seat is connected to a fifth driver that causes the lifting seat to perform reciprocating linear motion along the Y-axis. The provision of the lifting mechanism allows the balance beam to be lifted before the tire 50 on the tire crane is removed, facilitating tire 50 removal and further improving tire 50 replacement efficiency.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: the tire changing device of the present invention has an independent structure, a scientific and reasonable design, and the tire 50 is easy to replace, which changes the previous process requirement that multiple people must cooperate with a forklift to disassemble and assemble the tire 50 on the tire crane, liberates labor productivity, reduces labor intensity, saves labor costs, shortens replacement time, and can effectively improve work efficiency by more than 20%; the present invention completes the flipping and moving of the tire 50 through the driving mechanism, realizes the separation of man and machine, avoids the unsafe factors under the cooperation of the forklift, and successfully completes the replacement of the tire 50; has good versatility, is suitable for the replacement of the tire 50 of most tire cranes, and can also be customized according to the size and function of the tire 50 on site, which is economical and practical.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tire changing device for a tire crane, characterized in that: include: A base, which plays a role of fixing and supporting, wherein the base is provided with a first slide rail arranged along the Y-axis direction, the first slide rail is also provided with a limit block, and the base is provided with a third slide rail arranged along the X-axis direction; A support mechanism is slidably connected with the base, comprising a support frame and a support seat arranged on the support frame, the support seat cooperates with a bearing seat on the tire to support the tire, the support seat can perform reciprocating linear motion along the Z-axis direction, the support frame can perform reciprocating linear motion along the Y-axis direction to make the support mechanism approach or move away from the tire crane, a first slider adapted to the first slide rail is provided at the bottom of the support mechanism, the limit block limits the movement process of the first slider to prevent it from sliding off the first slide rail, a second slide rail is provided along the Z-axis direction on the first slider, the second slide rail is adapted to the support frame, and the support frame is slidably connected to the second slide rail; A flip mechanism is arranged on one side of the support mechanism, comprising a rotating seat and a rotating frame arranged on the rotating seat, the rotating frame is rotatably connected to the rotating seat, the rotating frame is provided with a clamping arm for fixing or releasing the tire, the rotating frame can perform a rotating motion to achieve the switching of the tire between the horizontal and vertical directions, the rotating seat can perform a reciprocating linear motion along the X-axis direction to make the flip mechanism approach or move away from the support mechanism, and a third sliding block adapted to the third slide rail is provided at the bottom of the rotating seat; The driving mechanism is connected to the supporting frame, the supporting seat, the rotating seat and the rotating frame respectively to realize the reciprocating linear motion of the supporting frame, the supporting seat and the rotating seat and the rotating motion of the rotating frame.

2. The tire changing device for a tire crane according to claim 1, characterized in that: A first connecting ear is provided in the middle of the rotating frame, and a first rotating shaft hole is provided on the first connecting ear. A second connecting ear is provided on the rotating seat at a side close to the supporting mechanism, and a second rotating shaft hole is provided on the second connecting ear. The first rotating shaft hole and the second rotating shaft hole are connected by a rotating shaft.

3. The tire changing device for a tire crane according to claim 1, characterized in that: A positioning block is provided at the bottom of the rotating frame, and a positioning hole matched with the positioning block is provided on the rotating seat. The positioning hole is located at the top of the rotating seat and on the side surface close to the supporting mechanism.

4. The tire changing device for a tire crane according to claim 1, characterized in that: The clamp arm includes a bracket, a sleeve and an arm body, the bracket is sleeved inside the sleeve, the arm body is movably connected to the bracket through the sleeve, the sleeve is provided with a first limiting hole, the bracket is provided with a second limiting hole adapted to the first limiting hole, and the rotating frame is provided with a limiting rod for connecting the first limiting hole and the second limiting hole.

5. The tire changing device for a tire crane according to claim 1, characterized in that: The support frame is in a rectangular shape and is provided with an observation window.

6. The tire changing device for a tire crane according to claim 1, characterized in that: There are two first slide rails, each of which is provided with a first sliding block; there are two second slide rails on each first sliding block, which are respectively connected to the front side and the rear side of the support frame; There are two third slide rails, and the third slide rails are arranged in a U shape. The third sliding block is located on the inner side of the rotating seat.

7. The tire changing device for a tire crane according to claim 1, characterized in that: The driving mechanism comprises a first driver connected to the supporting seat, a second driver connected to the supporting frame, a third driver connected to the rotating seat and a fourth driver connected to the rotating frame.

8. The tire changing device for a tire crane according to claim 1, characterized in that: The base is provided with a forklift opening for the fork of a forklift to enter and exit.

9. The tire changing device for a tire crane according to claim 1, characterized in that: Also includes: The lifting mechanism is arranged on the outside of the supporting mechanism and includes a lifting seat. The lifting seat cooperates with the fixing frame on the balance beam to lift the balance beam. The lifting seat is connected to a fifth driver, and the fifth driver enables the lifting seat to perform reciprocating linear motion along the Y-axis direction.

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