Straddle type monorail train wheel changing station lifting platform assembling system

Abstract

The invention relates to a straddle type monorail train wheel changing station lifting platform assembly system which comprises a maintenance double-layer shear type lifting integral platform, a tire transverse moving guide rail device is arranged on the maintenance double-layer shear type lifting integral platform, walking wheels to be replaced and maintained can transversely move, and rapid wheel changing is achieved. Meanwhile, a lifting platform supporting and guiding frame is designed to serve as a guiding mechanism to fix the working position of the lifting platform; the stabilizing wheel supporting structure assists in supporting the bogie to be subjected to wheel replacement and maintenance; a supporting plunger, a security pawl and a reset air cylinder piston assembly are arranged on the guide mechanism, so that the safety problem caused by faults of the hydraulic oil cylinder is prevented; the train body auxiliary supporting forklift carries out auxiliary supporting on the train body; the guide wheel bearing forklift and the walking wheel bearing forklift bear the detached guide wheels and the detached walking wheels respectively. According to the invention, the rapid maintenance and wheel replacement function is realized, the structure is simple and reliable, the time and cost are saved, the wheel replacement maintenance efficiency and economy are improved, meanwhile, accidents caused by faults of the hydraulic cylinder are effectively avoided, and the personnel and property safety is guaranteed.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of safety protection for monorail trains, and particularly relates to an assembly system for a lifting platform at a wheel-changing station of a straddle-type monorail train. Background Art

[0002] A monorail railway is a railway system with only one track. A straddle-type monorail is a strip-shaped beam, and a vehicle runs straddling on it. The advantages of a rail transit monorail vehicle in running are low noise, small turning radius, strong climbing ability, low construction cost, extremely flexible line, which well adapts to the natural conditions of cities such as mountain cities and provides convenience for people's lives. The straddle-type monorail has a large passenger capacity and high safety requirements. Therefore, when a straddle-type monorail train runs, it has high requirements for the quality and performance of running wheels. Since most monorails are built in mountain cities and the running conditions are relatively complex, the actual service life of the running wheels of monorail trains is far lower than the designed service life, which will increase the tire replacement frequency. However, the current wheel-changing efficiency of monorail vehicles is low, and the process of replacing running wheels consumes a lot of time, affecting the normal operation of monorail trains. Therefore, it is necessary to develop a fast wheel-changing mechanism.

[0003] The current wheel-changing method for straddle-type monorail trains is to remove the bogie from the monorail train and then perform the wheel-changing operation; removing the bogie from the train consumes a lot of time. Developing non-detaching wheel-changing will save wheel-changing time and improve the wheel-changing efficiency of straddle-type monorail trains; for detaching wheel-changing, the tires are moved out from above the bogie, and for non-detaching wheel-changing, the tires need to be moved out from below the bogie. When using the lower-wheel-out scheme, a supporting special wheel-changing station is required; due to the large weight of the monorail train wheels, it is difficult to manually carry the wheels down when using the lower-wheel-out scheme. Therefore, the special station needs to design a lifting platform to lower the removed old wheels and raise the replaced new wheels for replacement; the lifting platform needs to bear a large weight and also should have a lifting function. Therefore, it is designed that the lifting platform is driven by a hydraulic cylinder. However, the hydraulic drive itself has defects such as complex system, energy loss, and easy oil leakage. If the hydraulic cylinder is used for a long time to drive the lifting platform, it is easy to cause the hydraulic cylinder to malfunction due to its defects. If the hydraulic cylinder suddenly malfunctions and causes the lifting platform to suddenly fall accidentally, it will pose a threat to the safety and stability of the wheel-changing and maintenance work of monorail trains, thereby further affecting the efficiency and economy of monorail train operation. Therefore, safety facilities must be designed to ensure the safety of the wheel-changing and maintenance work and prevent safety problems caused by the sudden fall of the lifting platform. Summary of the Invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present disclosure provides an assembly system for a lifting platform at a wheel-changing station of a straddle-type monorail train.

[0005] The present disclosure provides an assembly system for a lifting platform at the wheel changing station of a straddle-type monorail train, characterized by comprising:

[0006] A maintenance double-deck scissor lifting integral platform for carrying the removed running wheels and enabling the running wheels to be replaced and maintained to move laterally to achieve rapid wheel changing operation;

[0007] A lifting platform support and guiding frame located on both sides of the maintenance double-deck scissor lifting integral platform for guiding and supporting the lifting integral platform and fixing the working position of the lifting integral platform;

[0008] A stabilizer wheel support structure located outside the lifting platform support and guiding frame for supporting the stabilizer wheels of the train;

[0009] A vehicle body auxiliary support forklift arranged on both sides of the lifting platform support and guiding frame for auxiliary supporting the vehicle body of the train so as to perform wheel changing and maintenance operations on the bogie;

[0010] A guide wheel carrying forklift for carrying the removed guide wheels;

[0011] A running wheel carrying forklift for carrying the removed running wheels;

[0012] Wherein, the maintenance double-deck scissor lifting platform, the lifting platform support and guiding frame and the stabilizer wheel support structure together constitute the main part of the system.

[0013] Preferably, the maintenance double-deck scissor lifting integral platform comprises:

[0014] An upper platform plate for carrying the removed running wheels;

[0015] An intermediate platform plate arranged below the upper platform plate;

[0016] A telescopic oil cylinder assembly for driving the lifting of the upper platform plate and the intermediate platform plate;

[0017] A platform scissor connecting the upper platform plate and the intermediate platform plate to achieve a scissor lifting structure;

[0018] A tire transverse movement guide rail device is arranged on the surface of the upper platform plate for laterally moving the removed running wheels.

[0019] Preferably, the lifting platform support and guiding frame comprises:

[0020] An upper surface for supporting the bogie to be wheel-changed and maintained;

[0021] A supporting plunger arranged on the upper surface for further supporting the bogie;

[0022] The reset cylinder piston assembly is arranged inside the lifting table support and guiding frame. Its bottom earring is connected to the lifting table support and guiding frame, and its head earring is hinged to the earring at the tail of the safety pawl, and is used to drive the rotational movement of the safety pawl;

[0023] The safety pawl is matched with the reset cylinder piston assembly and is used for safety protection when the overall lifting platform is working;

[0024] Earrings are arranged at the tail of the safety pawl and the head of the piston rod of the reset cylinder piston assembly, and the earrings are connected by a trunnion;

[0025] The trunnion in the middle of the safety pawl is hinged to the earring of the lifting table support and guiding frame and can rotate around the hinge point; the earring at its tail is hinged to the earring at the head of the piston rod of the reset cylinder piston assembly. Through the reciprocating movement of the piston of the reset cylinder piston assembly, the rotational movement of the safety pawl is driven, and is used for safety protection when the overall lifting platform is working.

[0026] Preferably, the safety pawl is integrally formed of metal. A support block that fits into the safety pawl groove on the upper platen is made at the head of the safety pawl, an earring is made at the tail, and a trunnion is made in the middle. The earring is hinged to the top earring of the reset cylinder piston assembly through an independent trunnion; the safety pawl is in a normally open state and can support the upper platen of the overall lifting platform when it pops out. When the overall lifting platform is in the ascending or descending state, the safety pawl retracts, and when the overall lifting platform rises to the highest position, the safety pawl pops out again to catch the upper platen pawl support block to support the upper platen.

[0027] Preferably, the reset cylinder piston assembly includes:

[0028] A reset cylinder, which is used to control the retraction and ejection of the pawl;

[0029] A reset spring, which is sleeved on the piston rod of the reset cylinder and is used to eject the safety pawl when the reset cylinder stops working;

[0030] A protection device for the cylinder barrel is arranged outside the reset cylinder, and an earring is arranged at the bottom for connection with the guiding mechanism; a retaining piece is arranged on the piston rod to limit the displacement of the reset spring.

[0031] Preferably, the stabilizer wheel support structure includes a support member for supporting the stabilizer wheel of the train to maintain the stability of the train during the wheel change process.

[0032] Preferably, the vehicle body auxiliary support forklift includes a forklift body and a support member, and the support member is used for auxiliary support of the train vehicle body.

[0033] Preferably, the guide wheel carrying forklift includes a forklift body and a carrying component for carrying the guide wheels.

[0034] Preferably, the running wheel carrying forklift includes a forklift body and a carrying component for carrying the running wheels.

[0035] Preferably, the lifting platform support guide frame and the stabilizer wheel support structure are respectively arranged on both sides of the overall maintenance double-layer scissor lift platform to form a symmetrical layout, so as to ensure the balance and stability of the train during the wheel change process.

[0036] The technical problem to be solved by the present disclosure is:

[0037] After the straddle monorail train enters the maintenance and wheel change station, in order to meet the purpose of quickly changing wheels by the lower wheel-out method, the running wheels to be repaired and replaced are quickly removed, repaired and replaced, so as to complete the quick wheel change operation; at the same time, it is ensured that the lifting platform of the maintenance station can still remain stable under the condition that the hydraulic cylinder fails, so as not to cause the lifting platform to suddenly fall and cause accidents, thus ensuring the safety of the straddle monorail train for wheel change and maintenance work.

[0038] The principle of the technical solution of the present disclosure is:

[0039] Design the overall maintenance double-layer scissor lift platform and arrange the tire transverse movement guide rail device on it, so that the running wheels to be repaired and replaced can move laterally, and can be quickly removed, repaired and replaced, thus realizing the quick wheel change operation. Design the lifting platform support guide frame, which is arranged on both sides of the lifting platform and serves as a guiding mechanism, not only playing a role in guiding the lifting platform, but also fixing the working position of the lifting platform. Design the stabilizer wheel support structure to assist in supporting the bogie to be repaired and replaced. The support plunger is arranged on the guiding mechanism to support the bogie to be repaired and replaced. The anti-falling pawl is arranged on the guiding mechanism to prevent safety problems caused by the failure of the hydraulic cylinder of the lifting platform during work. Design the vehicle body auxiliary support forklift to assist in supporting the train body, so as to facilitate the wheel change and maintenance operation of the bogie. Design the guide wheel carrying forklift and the running wheel carrying forklift, which are respectively used to carry the removed guide wheels and running wheels.

[0040] Compared with the prior art, the beneficial effects of the present disclosure are:

[0041] 1. A brand-new wheel change and maintenance station is designed for the quick wheel change mechanism of the straddle monorail train, realizing the function of quick maintenance and wheel change, with a simple, reliable, time-saving and low-cost structure, which can improve the efficiency and economy of the wheel change, maintenance and maintenance of the straddle monorail train.

[0042] 2. It solves the safety protection problem of the wheel replacement and maintenance station of the straddle monorail train. A safety protection device, namely a safety pawl, is set on the basis of the maintenance station. The structure is simple and reliable, which can effectively avoid accidents caused by the failure of the bottom support hydraulic cylinder of the lifting platform of the maintenance station, thus preventing personnel and property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] With reference to the accompanying drawings and the following detailed description, the above and other features, advantages and aspects of the embodiments of the present disclosure will become clearer. The accompanying drawings are intended to assist in understanding the solution and do not constitute a limitation to the present disclosure. In the drawings, the same or similar reference numerals represent the same or similar elements, where:

[0044] Figure 1 is an axonometric view of the specific structure of the lifting platform assembly system for the wheel replacement station of the straddle monorail train of the present disclosure;

[0045] Figure 2 is a front view of the main part of the lifting platform assembly system for the wheel replacement station of the straddle monorail train of the present disclosure;

[0046] Figure 3 is an axonometric view of the overall maintenance double - layer scissor - type lifting platform of the present disclosure;

[0047] Figure 4 is an axonometric view of the support and guiding frame of the lifting platform of the present disclosure;

[0048] Figure 5 is an axonometric view of the stable wheel support structure of the present disclosure;

[0049] Figure 6 is an axonometric view of the vehicle body auxiliary support forklift supporting the train vehicle body of the present disclosure;

[0050] Figure 7 is an axonometric view of the support plunger supporting the bogie of the present disclosure;

[0051] Figure 8 is an axonometric view of the stable wheel support structure of the present disclosure;

[0052] Figure 9 is an axonometric view of the guiding wheel - carrying forklift rising to the topmost position of the present disclosure;

[0053] Figure 10 is an axonometric view of the guiding wheel - carrying forklift descending to the bottommost position of the present disclosure;

[0054] Figure 11 is an operation view of the tire transverse movement guide rail device of the present disclosure;

[0055] Figure 12 is an operation view of the overall maintenance double - layer scissor - type lifting platform of the present disclosure Figure 1 ;

[0056] Figure 13 For the operation view of the overall platform of the double-deck scissor lift for maintenance disclosed in this disclosure Figure 2 ;

[0057] Figure 14 For the operation view of the overall platform of the double-deck scissor lift for maintenance disclosed in this disclosure Figure 3 ;

[0058] Figure 15 Isometric view of the walking wheel bearing forklift of the present disclosure;

[0059] Figure 16 Isometric view of the assembly of the security pawl and the return cylinder piston of the present disclosure;

[0060] Figure 17 Partial isometric view of the installation of the assembly of the security pawl and the return cylinder piston on the guiding mechanism of the present disclosure;

[0061] Figure 18 Front view of the security pawl popping out when the lifting platform is at the bottom of the present disclosure;

[0062] Figure 19 Front view of the security pawl retracting during the ascending process of the lifting platform of the present disclosure;

[0063] Figure 20 Front view of the security pawl popping out when the lifting platform reaches the top of the present disclosure.

[0064] Reference numerals: 1. Overall platform of the double-deck scissor lift for maintenance, 2. Lifting platform support and guiding frame, 3. Stabilizing wheel support structure, 4. Support plunger, 5. Anchor bolt, 6. Security pawl, 7. Assembly of the return cylinder piston, 8. Vehicle body auxiliary support forklift, 9. Guide wheel bearing forklift, 10. Tire transverse movement guide rail device, 11. Walking wheel bearing forklift. Detailed implementation manners

[0065] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0066] As Figure 1As shown in the figure, the straddle monorail train wheel-changing station lifting platform assembly system of the present disclosure mainly consists of a maintenance double-deck scissor-lift integral platform 1, lifting platform support and guiding frames 2 on both sides, and stabilizing wheel support structures 3 on both sides; on both sides of this assembly system, a vehicle body auxiliary support forklift 8 is arranged to assist in supporting the train vehicle body, so as to facilitate the wheel-changing maintenance operation of the bogie; this assembly system also arranges a guiding wheel carrying forklift 9 and a running wheel carrying forklift 11, which are respectively used to carry the removed guiding wheels and running wheels; in addition, a tire transverse movement guide device 10 is arranged on the upper surface of the upper deck of the maintenance double-deck scissor-lift integral platform 1 to facilitate the transverse movement of the removed running wheels.

[0067] As Figure 2 shown, for the maintenance double-deck scissor-lift integral platform 1, the lifting platform support and guiding frame 2 and the stabilizing wheel support structure 3 are both connected to the ground through anchor bolts 5, and the support plunger 4 is arranged on the upper surface of the lifting platform support and guiding frame 2. After the train enters the wheel-changing maintenance station, the stabilizing wheel support structure 3 and the support plunger 4 jointly support the bogie to be wheel-changed and maintained, so as to facilitate further wheel-changing maintenance work.

[0068] As Figure 3 shown, the maintenance double-deck scissor-lift integral platform 1 is composed of an upper deck, an intermediate deck, a telescopic oil cylinder assembly and platform scissors, etc., and is used to carry the removed running wheels.

[0069] As Figure 4 shown, the lifting platform support and guiding frame 2 includes structures such as a support plunger 4, a safety pawl 6 and a return cylinder piston assembly 7. The support plunger 4 is arranged on the upper surface of the lifting platform support and guiding frame 2 to support the bogie to be wheel-changed and maintained; the safety pawl 6 and the return cylinder piston assembly 7 are located on one side of the lifting platform support and guiding frame 2 and are installed on the lifting platform guiding mechanism; the bottom of the return cylinder has an earring connected to the guiding mechanism, and the safety pawl 6 is also provided with a trunnion connected to the guiding mechanism, so that the safety pawl 6 can rotate around the guiding mechanism. The lifting platform support and guiding frame 2 not only plays a role in guiding the lifting platform, but also fixes the working position of the lifting platform to prevent safety problems caused by the failure of the hydraulic cylinder of the lifting platform during work.

[0070] As Figure 5 shown, the stabilizing wheel support structure 3 is located on both sides of the straddle monorail train wheel-changing station lifting platform assembly system to assist in supporting the bogie to be wheel-changed and maintained. Its support movable sleeve can be lifted and can jointly support the bogie with the support plunger 4.

[0071] As Figure 6As shown in the figure, after the train enters the maintenance station, the vehicle body auxiliary support forklifts 8 on both sides move to appropriate positions and then rise simultaneously to assist in supporting the vehicle body during the wheel replacement maintenance operation.

[0072] As Figure 7 shown in the figure, when the train enters the wheel replacement maintenance station and the vehicle body auxiliary support forklifts 8 are arranged, all the support plungers 4 rise simultaneously to lift the bogie to a certain height, facilitating further wheel replacement maintenance work. After the support is completed, open the lower apron and guard plate cover on the side of the train, and then the wheel replacement maintenance operation can begin.

[0073] As Figure 8 shown in the figure, after the bogie is supported, place the guide wheel carrying forklift 9 under the guide wheel. After the guide wheel is disassembled, place the guide wheel on the pallet of the forklift to move it with the forklift.

[0074] As Figure 9 shown in the figure, after the forklift is arranged, raise the pallet to the top to carry the disassembled guide wheel.

[0075] As Figure 10 shown in the figure, after the guide wheel is carried, lower the pallet to the bottom to facilitate the storage and movement of the guide wheel.

[0076] As Figure 11 shown in the figure, after the support plunger 4 raises the bogie, arrange a tire transverse movement guide rail device 10 on the upper platform surface of the maintenance double-layer scissor lift integral platform 1 to facilitate the movement of the removed running wheel. After removing the wedge block and bolt, the running wheel can be moved left and right by using the tire transverse movement guide rail device 10. Turn the wrench to raise the transverse movement surface of the running wheel, so that the running wheel slides horizontally along the guide rail.

[0077] As Figure 12 shown in the figure, arrange a tire transverse movement guide rail device 10 on the upper platform surface of the maintenance double-layer scissor lift integral platform 1, and the running wheel is in the state of being disassembled and waiting to be moved.

[0078] As Figure 13 shown in the figure, turn the wrench to raise the transverse movement surface of the running wheel, and slide the running wheel horizontally along the guide rail to the edge, waiting to be lowered for maintenance and replacement.

[0079] As Figure 14 shown in the figure, when the running wheel is transverse to the edge with the tire transverse movement guide rail device 10, the maintenance double-layer scissor lift integral platform 1 carrying the running wheel gradually descends to the lowest position, then the running wheel carrying forklift 11 carries the running wheel and drives into the maintenance station for further maintenance. After that, the lift platform can rise again to perform the wheel replacement maintenance operation on the next running wheel.

[0080] As Figure 15As shown in the figure, after the maintenance double-layer scissor lift integral platform 1 carrying the running wheels gradually descends to the lowest position, the running wheels carried by the forklift 11 carrying the running wheels drive into the maintenance station, and its tray can carry the running wheels to move up and down.

[0081] As Figure 16 shown, the security pawl and reset cylinder assembly consists of the security pawl 6 and the reset cylinder piston assembly 7. The entire assembly system is driven by the reset cylinder. The security pawl 6 is normally open and can catch the upper platen of the lift platform to ensure safety. The reset spring realizes the function of resetting the security pawl. The security pawl 6 is integrally formed, with a simple and reliable structure. Its head can be caught on the pawl support block below the upper platen to ensure the safety of the upper platen during operation and prevent it from falling rapidly in case of an accident, causing danger. An ear shaft is provided in the middle to be connected to the earring of the guiding mechanism, and an earring is provided at the tail to be connected to the cylinder piston rod. The reset cylinder piston assembly 7 consists of a reset cylinder and a reset spring. The reset cylinder piston assembly 7 has the function of driving the security pawl 6 to retract. When the cylinder works, the ejected security pawl 6 is retracted. There is a protection device around the reset cylinder barrel to prevent the cylinder barrel from being damaged, and an earring that can be installed on the guiding mechanism is also provided at the bottom of the cylinder barrel. The reset spring is sleeved on the piston rod, and there is a tray on the upper part of the piston rod to block the pawl reset spring. An earring that can be connected to the security pawl is also provided at the head of the piston rod.

[0082] As Figure 17 shown, the security pawl 6 and the reset cylinder piston assembly 7 are installed on the guiding mechanism. This is the state when the security pawl 6 is ejected. In this state, the security pawl 6 can support the upper platen. When the upper platen moves up or down, the security pawl 6 retracts. At this time, the outer surface of the security pawl 6 is in the same plane as the side plane of the guiding mechanism.

[0083] As Figure 18 shown, when the lift platform is at the bottom, the security pawl 6 ejects. This is the state of the security pawl 6 when the lift platform is at the bottom position. At this time, the security pawl 6 is normally open.

[0084] As Figure 19 shown, during the ascending process of the lift platform, the security pawl 6 retracts. When the lift platform is in the ascending or descending state, the security pawl 6 needs to retract to prevent blocking the lift platform.

[0085] As Figure 20 shown, when the lift platform reaches the top, the security pawl 6 ejects. When the lift platform rises to the highest position, the security pawl ejects again, catches the upper platen pawl support block, and supports the upper platen.

[0086] In some embodiments of the present disclosure, after the traveling wheel to be repaired is disassembled, the lifting platform rises to the highest position, the safety pawl 6 and the reset cylinder piston assembly 7 operate and are in the normally open state. At this time, the safety pawl 6 is stuck on the upper platen pawl support block, and the wheel replacement operation is carried out. During this process, the safety pawl is always in the open state and holds the upper platen pawl support block; when the traveling wheel to be repaired is translated to the edge through the tire transverse translation guide device 10, the reset cylinder piston starts to operate, causing the safety pawl 6 to retract, and the lifting platform starts to descend; when it descends to the lowest position, the traveling wheel-carrying forklift 11 carries the traveling wheel to be repaired and drives into the repair station; after the traveling wheel is transferred, the lifting platform rises again. When it reaches the highest position, the reset cylinder stops operating, and the reset spring causes the safety pawl 6 to return to the open state, holding the upper platen pawl support block below the upper platen and performing the function of safety protection. After the traveling wheel is repaired, the safety pawl 6 returns to the open state, and the lifting platform descends to the lowest position to carry the traveling wheel; after the traveling wheel is placed, the lifting platform rises again. After reaching the highest position, the tire transverse translation guide device 10 translates the traveling wheel back to its original position and installs it on the bogie, and the wheel replacement and repair work ends.

[0087] Although the embodiments of the present disclosure have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. For those skilled in the art, various changes and modifications can be made to the present disclosure. Any changes, modifications, substitutions, combinations, and simplifications made to the present disclosure shall be equivalent replacement methods and are all included in the protection scope of the present disclosure.

Claims

1. A straddle-type monorail train wheel-changing station lifting platform assembly system, characterized in that: include: The maintenance double-layer scissor lift integral platform is used to carry the disassembled running wheels and move the running wheels to be replaced and repaired horizontally to achieve fast wheel changing operations; The lifting platform support guide frame is located on both sides of the maintenance double-layer scissor lift integral platform, and is used to guide and support the lifting integral platform and fix the working position of the lifting integral platform; A stabilizing wheel support structure, located outside the lifting platform support guide frame, for supporting the stabilizing wheels of the train; A car body auxiliary support forklift, which is arranged on both sides of the lifting platform support guide frame and is used to provide auxiliary support for the train car body so as to perform wheel changing maintenance operations on the bogie; The guide wheel carrying forklift is used to carry the removed guide wheel; The running wheel carrying forklift is used to carry the disassembled running wheels; Among them, the maintenance double-layer scissor lift platform, the lift platform support guide frame and the stabilizing wheel support structure together constitute the main part of the system.

2. The assembly system of the straddle-type monorail train wheel-changing station lifting platform according to claim 1 is characterized in that: The maintenance double-layer scissor lift integrated platform comprises: The upper platform is used to carry the disassembled running wheels; An intermediate platform, arranged below the upper platform; A telescopic cylinder assembly, used to drive the upper platform and the middle platform to rise and fall; Platform scissors, connecting the upper platform and the middle platform to realize a scissor lift structure; A tire transverse guide rail device is arranged on the surface of the upper platform for transversely moving the disassembled running wheels.

3. The assembly system of the straddle-type monorail train wheel-changing station lifting platform according to claim 2 is characterized in that: The lifting platform support guide frame comprises: The upper surface is used to support the bogie to be repaired by wheel replacement; a support plunger disposed on the upper surface for further supporting the bogie; The reset cylinder piston assembly is arranged inside the lifting platform support guide frame, the bottom earring of which is connected to the lifting platform support guide frame, and the head earring of which is hinged to the earring at the tail of the safety pawl, so as to drive the rotational movement of the safety pawl; A safety pawl cooperates with the reset cylinder piston assembly to provide safety protection when the lifting platform is working; The tail of the safety pawl and the head of the piston rod of the reset cylinder piston assembly are both provided with earrings, and the earrings are connected by ear shafts; The ear shaft in the middle of the safety pawl is hinged on the earring of the lifting platform support guide frame and can rotate around the hinge point; the earring at its tail is hinged to the earring at the head of the piston rod of the reset cylinder piston assembly, and the reciprocating motion of the piston of the reset cylinder piston assembly drives the rotation of the safety pawl, which is used for safety protection when the lifting platform is working.

4. The assembly system of the straddle-type monorail train wheel-changing station lifting platform according to claim 3 is characterized in that: The safety pawl is made of one-piece metal, the head of the safety pawl is provided with a support block that is clamped on the safety pawl groove of the upper platform, the tail is provided with an earring, and the middle is provided with an ear shaft, and the earring is hinged with the top earring of the reset cylinder piston assembly through an independent ear shaft; the safety pawl is in a normally open state, and can support the upper platform of the lifting platform when it pops out, and when the lifting platform is in an ascending or descending state, the safety pawl is retracted, and when the lifting platform rises to the highest position, the safety pawl pops out again to clamp the upper platform pawl support block to support the upper platform.

5. The assembly system of the lifting platform for the wheel-changing station of the straddle-type monorail train according to claim 4 is characterized in that: The reset cylinder piston assembly comprises: A reset cylinder is used to control the retraction and ejection of the pawl; A reset spring, sleeved on the piston rod of the reset cylinder, used to make the safety pawl pop out when the reset cylinder stops working; The outside of the reset cylinder is provided with a protection device for the cylinder barrel, and the bottom is provided with an earring for connecting with the guide mechanism; the piston rod is provided with a baffle to limit the displacement of the reset spring.

6. The assembly system of the straddle-type monorail train wheel-changing station lifting platform according to claim 1, characterized in that: The stabilizing wheel supporting structure includes a supporting component for supporting the stabilizing wheel of the train to maintain the stability of the train during the wheel changing process.

7. The assembly system of the lifting platform for the wheel-changing station of the straddle-type monorail train according to claim 1 is characterized in that: The vehicle body auxiliary supporting forklift comprises a forklift body and a supporting component, and the supporting component is used for auxiliary supporting the train vehicle body.

8. The assembly system of the lifting platform for the wheel-changing station of the straddle-type monorail train according to claim 1 is characterized in that: The guide wheel bearing forklift comprises a forklift body and a bearing component for bearing the guide wheel.

9. The assembly system of the lifting platform for the wheel-changing station of the straddle-type monorail train according to claim 1 is characterized in that: The traveling wheel bearing forklift comprises a forklift body and a bearing component for bearing the traveling wheels.

10. The assembly system of the lifting platform for the wheel-changing station of the straddle-type monorail train according to claim 1, characterized in that: The lifting platform support guide frame and the stabilizing wheel support structure are respectively arranged on both sides of the maintenance double-layer scissor lift integral platform to form a symmetrical layout to ensure the balance and stability of the train during the wheel changing process.

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