A heavy-duty multi-drive exchangeable vehicle transfer platform with wire rope break protection

Abstract

The present application relates to the field of transportation and conveying technology, and in particular to a heavy-duty multi-drive exchangeable car transfer platform with wire rope breakage protection, comprising a track, a platform body, a wire rope driving part, a protective part, a middle connection module, a transmission part and a foundation pit for accommodating the track, the platform body, the wire rope driving part, the protective part, the middle connection module and the transmission part, wherein both sides of the interior of the foundation pit are fixedly connected with tracks, the platform body is installed on the upper side of the track, the platform body comprises a group of two sub-platforms arranged on the left and right, a connecting frame is fixedly connected between a group of sub-platforms, and a walking device matching the track is installed on the lower side of the corners of the sub-platforms. In the present application, through the provided protective part, platform body, wire rope driving part, middle connection module and transmission part and other structures, the heavy-duty multi-drive exchangeable car transfer platform can avoid the transmission wire rope independently driving the car transfer platform to move when transportation displacement is required, and avoid the wire rope from breaking due to excessive force.

Description

Technical Field

[0001] The present application relates to the field of transportation and delivery technology, and specifically to a heavy-load multi-drive exchange vehicle transfer platform with wire rope breakage protection. Background Art

[0002] Due to site limitations, most of the domestic car tipper unloading systems are reversible car tipper unloading systems. In the reversible car tipper unloading system, a transfer platform is usually used to transport the empty car after the tipper is unloaded from the heavy car line to the empty car line. Currently, the largest transfer platform in China is the double-car transfer platform, which uses a motor-driven walking device and a transmission wire rope to drive the displacement.

[0003] In actual operation, the transmission wire rope may run alone due to a failure of the walking device and operational omissions of the staff. Since this type of transfer platform is too heavy, the transmission wire rope alone driving the heavy-loaded multi-drive exchangeable transfer platform will cause excessive force, which may easily lead to the breakage of the wire rope. The breakage of the wire rope will cause potential energy to be converted into kinetic energy, which will cause natural rebound and easily cause harm to nearby workers. Therefore, based on the above problems, a heavy-loaded multi-drive exchangeable transfer platform with wire rope breakage protection is proposed. Summary of the Invention

[0004] The purpose of this application is to provide a heavy-duty multi-drive exchangeable mobile transfer platform with wire rope breakage protection, so as to solve the problem that the existing heavy-duty multi-drive exchangeable mobile transfer platform uses a walking device and a transmission wire rope to drive the displacement. Since this type of mobile transfer platform is too heavy, the transmission wire rope alone drives the heavy-duty multi-drive exchangeable mobile transfer platform, which will cause excessive force and easily lead to wire rope breakage.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A heavy-duty multi-drive exchange car transfer platform with wire rope breakage protection, comprising a track, a platform body, a wire rope drive part, a protective part, a middle connection module, a transmission part and a foundation pit for accommodating the track, the platform body, the wire rope drive part, the protective part, the middle connection module and the transmission part. Both sides of the interior of the foundation pit are fixedly connected to the track, the platform body is installed on the upper side of the track, the platform body includes a group of two sub-platforms arranged on the left and right, a group of sub-platforms are fixedly connected with a connecting frame, the lower sides of the corners of the sub-platforms are installed with a walking device that matches the track, the lower sides of the sub-platforms are symmetrically fixed with a matching frame, the inner side of the foundation pit is installed with a wire rope drive part, the wire rope drive part includes a motor fixed to the inner right part of the foundation pit, and the output shaft end of the motor The outer sides of the said steel ropes are respectively provided with a protective part which is fixedly connected to the inner wall of the foundation pit, and the protective part comprises a rail shell, and the front and rear sides of the said rail shell are provided with a through rail, and the front and rear sides of the upper opening of the rail shell are provided with a fixed expansion groove, and the inner side of the said fixed expansion groove is fixedly connected with a sealing soft belt, and the inner side of the said rail shell is fixedly connected with a support plate, and a group of multiple slots are provided on the front and rear sides of the upper end face of the said support plate, and the upper sides of the said support plate are provided with a middle connecting module on the lower side of the matching frame, and the lower side of the said sub-platform is fixedly connected with the transmission part on the inner side of the middle connecting module.

[0007] Preferably, the traveling device is composed of a wheel housing, a rail wheel, a driving wheel, a transmission box and a driving motor, and the driving wheel of the traveling device and the driving motor are transmitted through the transmission box.

[0008] Preferably, the drive frame and the drive roller are both arranged on the left and right sides of the protective part, the drive frame is composed of a shaft and a synchronization disk, and the drive roller is composed of a rotating shaft, a roller body and a synchronization roller disk. The synchronization disk of the drive frame and the synchronization roller disk of the drive roller are arranged to be laterally aligned, and the steel ropes are both sleeved on the outside of the synchronization disk of the drive frame and the synchronization roller disk of the drive roller.

[0009] Preferably, the horizontal flat sections of the steel rope are all arranged on the inner side of the rail shell, a distance is left between the steel rope and the through-holes of the rail shell, the steel rope is arranged on the lower side of a group of sealing soft belts, the group of sealing soft belts are fitted together, and the diameter of the steel rope is larger than the rail width of the through rail.

[0010] Preferably, the central connecting module includes a base shell, a locking part, a guide frame, a pin bar and a matching block, the base shell includes a shell arranged on the inner side of the rail shell, the front and rear sides of the shell are provided with cross rails, the upper sides of the shell are provided with rail openings, the left and right sides of the front and rear end surfaces of the shell are provided with slide rails, the left and right sides of the base shell are fixedly connected with locking parts, the locking part includes a cone shell, the interior of the cone shell is fixedly connected with a group of five guide rail blocks arranged at equal angles, the inner sides of the guide rail blocks are slidably connected with clamps, and the sides of the clamps close to the base shell are fixedly connected with elastic pull ropes, the elastic pull ropes The cam is fixedly connected to the inner wall of the guide rail block, and a group of guide rails are slidably connected to the inner side of the guide rails, and the inner sides of the slide rails are slidably connected to pins whose upper ends are fixedly connected to the guide rails. The upper end face and rear sides of the base shell are hingedly connected to matching blocks. The transmission part includes a linkage frame fixedly connected to the lower end face of the sub-platform, and the linkage frame is fixedly connected to a group of two sleeves on the inner side of the shell. The left and right sides of the sleeve are provided with annular grooves, and the inner sides of the annular grooves are provided with springs. The inner sides of the annular grooves are slidably connected with push rings, and the two ends of the springs are fixedly connected to the annular grooves and the push rings respectively.

[0011] Preferably, the chuck consists of a slider, an arc block and a damping block, the arc block and the damping block of the chuck are both arranged on the outside of the guide rail block, the steel ropes are both arranged on the inside of the middle connection module, a distance is set between the steel rope and the chuck, and a group of the chucks are all arranged around the outside of the steel rope.

[0012] Preferably, the linkage frame is composed of folding rods on both sides and a middle rod in the middle. The linkage frames are all slidably connected to the through rails, and the linkage frames are all slidably connected to the cross rails. The steel ropes are all arranged on the inner side of the sleeve, and a distance is set between the steel ropes and the inner wall of the sleeve.

[0013] Preferably, the rigidity of the spring is greater than the elastic strength of the elastic pull rope, the lower end of the pin bar is set as a pointed head, the pin bars are all inserted into the inner side of the slot, the matching blocks are all set on the front and rear sides of the guide frame, the matching blocks are all set on the inner side of the matching frame, the inclined surfaces of the matching blocks are all provided with a group of protrusions, the inner walls of the matching frame are both sides of a groove group, and the side of the matching block close to the guide frame is set as a curved surface.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The present invention relates to a method for driving a vehicle body by driving a traveling device and a driving wire rope, wherein the traveling device and the driving wire rope are driven by the traveling device and the driving wire rope, and the traveling device and the driving wire rope are driven by the traveling device and the driving wire rope, respectively. The traveling device and the driving wire rope are driven by the traveling device and the driving wire rope, respectively. The traveling device and the driving wire rope are driven by the traveling device and the driving wire rope, respectively. The traveling device and the driving wire rope are driven by the traveling device and the driving wire rope, respectively. The traveling device and the driving wire rope are driven by the traveling device and the driving wire rope, respectively.

[0016] 2. In the present application, by providing structures such as a wire rope driving part and a protective part, the steel rope of the wire rope driving part drives the platform body to move through the intermediate module. If the steel rope breaks accidentally, it will most likely break inside the rail shell. The sealing soft belt that blocks the upper opening of the rail shell through the rail shell and the upper side of the steel rope can prevent the broken steel rope from escaping from the rail shell of the protective part, thereby achieving the goal that the steel rope used to drive the displacement of the heavy-duty multi-drive exchangeable platform will not cause harm to nearby workers after it breaks, solving the problem that the steel rope used to drive the displacement of the existing heavy-duty multi-drive exchangeable platform is likely to cause harm to nearby workers after it breaks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the protection department of this application;

[0019] Figure 3 For this application Figure 2 Schematic diagram of the structure at A;

[0020] Figure 4 For this application Figure 2 Schematic diagram of the cross-sectional structure;

[0021] Figure 5 For this application Figure 4 Schematic diagram of the structure at B;

[0022] Figure 6 For this application Figure 4 Schematic diagram of the structure at C;

[0023] Figure 7This is a schematic structural diagram of the wire rope drive unit of this application;

[0024] Figure 8 This is a schematic diagram of the structure of the rail shell of this application;

[0025] Figure 9 This is a schematic diagram of the structure of the module connection in this application;

[0026] Figure 10 For this application Figure 9 Schematic diagram of a partial left view structure;

[0027] Figure 11 This is a structural diagram of the transmission part of this application;

[0028] Figure 12 For this application Figure 11 Schematic diagram of the cross-sectional structure;

[0029] Figure 13 This is a schematic diagram of the position structure of the connection module and the transmission part in this application;

[0030] Figure 14 This is a schematic structural diagram of the base shell of this application;

[0031] Figure 15 This is a structural diagram of the locking portion of this application;

[0032] Figure 16 For this application Figure 15 Another perspective structural diagram;

[0033] Figure 17 For this application Figure 13 Schematic diagram of the cross-sectional structure;

[0034] Figure 18 This is a schematic diagram of the structure of the vehicle platform as viewed from above;

[0035] Figure 19 For this application Figure 18 Schematic diagram of the structure at D;

[0036] Figure 20 This is a structural diagram of the connection module after operation in this application.

[0037] In the figure: 1. foundation pit; 2. track; 3. platform body; 31. sub-platform; 32. connecting frame; 33. walking device; 34. matching frame; 4. wire rope drive unit; 41. motor; 42. drive roller; 43. drive frame; 44. steel rope; 5. protection part; 51. rail shell; 52. through rail; 53. fixed expansion slot; 54. sealing soft belt; 55. support plate; 56. slot; 6. intermediate connection module; 61. base shell; 611. shell; 612. cross rail; 613. rail mouth; 614. slide rail; 62. locking part; 621. cone shell; 622. guide rail block; 623. chuck; 624. elastic pull rope; 63. guide frame; 64. pin bar; 65. matching block; 7. transmission part; 71. linkage frame; 72. sleeve; 73. ring groove; 74. spring; 75. push ring. DETAILED DESCRIPTION

[0038] See also Figure 1-20 , this application provides a technical solution:

[0039] A heavy-duty multi-drive exchange type transfer platform with wire rope breakage protection, comprising a track 2, a platform body 3, a wire rope drive part 4, a protective part 5, a middle connection module 6, a transmission part 7 and a foundation pit 1 for accommodating the track 2, the platform body 3, the wire rope drive part 4, the protective part 5, the middle connection module 6 and the transmission part 7. Both sides of the interior of the foundation pit 1 are fixedly connected with the track 2, the platform body 3 is installed on the upper side of the track 2, the platform body 3 includes a group of two sub-platforms 31 arranged on the left and right, a connecting frame 32 is fixedly connected between a group of sub-platforms 31, a walking device 33 that matches the track 2 is installed on the lower side of the corners of the sub-platforms 31, and a matching frame 34 is fixedly connected to the lower side of the sub-platforms 31 in a front-to-back symmetrical manner. The wire rope drive part 4 is installed on the inner side of the foundation pit 1. 4 includes a motor 41 fixed to the inner right part of the foundation pit 1, the output shaft end of the motor 41 is fixedly connected to a driving roller 42 rotatably connected to the inner wall of the foundation pit 1, and the inner left part of the foundation pit 1 is rotatably connected to a driving frame 43. A group of two steel ropes 44 arranged in a front-to-back manner are sleeved on the outer sides of the driving frame 43 and the driving roller 42. The outer sides of the steel ropes 44 are sleeved with a protective part 5 fixedly connected to the inner wall of the foundation pit 1. The protective part 5 includes a rail shell 51, and the front and rear sides of the rail shell 51 are provided with through rails 52. The front and rear sides of the upper opening of the rail shell 51 are provided with fixed expansion grooves 53. The inner sides of the fixed expansion grooves 53 are fixedly connected to the sealing soft belts 54. The inner side of the rail shell 51 is fixedly connected to a support plate 55, and the upper end face of the support plate 55 is provided with a group of multiple Slot 56, both sides of the upper part of the support plate 55 are provided with a middle connecting module 6 on the lower side of the matching frame 34, and the lower side of the sub-platform 31 is fixedly connected with a transmission part 7 on the inner side of the middle connecting module 6; the walking device 33 is composed of a wheel shell, a rail wheel, a driving wheel, a transmission box and a driving motor. The driving wheel of the walking device 33 and the driving motor are transmitted through the transmission box. Through this arrangement, the walking device 33 can drive the sub-platform 31 to move after it is running; the driving frame 43 and the driving roller 42 are both arranged on the left and right sides of the protective part 5, the driving frame 43 is composed of a shaft and a synchronous disk, the driving roller 42 is composed of a rotating shaft, a roller body and a synchronous roller disk, the synchronous disk of the driving frame 43 and the synchronous roller disk of the driving roller 42 are arranged to be horizontally aligned, and the steel ropes 44 are all sleeved on the synchronous The outer side of the synchronous roller disc of the disc and the drive roller 42 is arranged to prevent the steel rope 44 from running off, so that the drive frame 43 and the drive roller 42 can synchronously drive the steel rope 44 to move and rotate; the horizontal sections of the steel rope 44 are all arranged on the inner side of the rail shell 51, and a gap is left between the steel rope 44 and the perforations of the rail shell 51. This arrangement prevents the steel rope 44 from contacting the rail shell 51 during displacement. The steel rope 44 is arranged on the lower side of a group of sealing soft belts 54, and a group of sealing soft belts 54 fit together. Through this arrangement, the sealing soft belt 54 can block the upper opening of the rail shell 51 to prevent the steel rope 44 from popping out from the upper opening of the rail shell 51 after breaking. The diameter of the steel rope 44 is larger than the rail width of the through rail 52. This arrangement prevents the steel rope 44 from popping out from the through rail 52 after breaking.

[0040] like Figures 9-20As shown, the middle connecting module 6 includes a base shell 61, a locking part 62, a guide frame 63, a pin strip 64 and a matching block 65. The base shell 61 includes a shell 611 arranged on the inner side of the rail shell 51. The front and rear sides of the shell 611 are provided with cross rails 612. The upper sides of the shell 611 are provided with rail openings 613. The left and right sides of the front and rear end surfaces of the shell 611 are provided with slide rails 614. The left and right sides of the base shell 61 are fixedly connected with the locking part 62. The locking part 62 includes a cone shell 621. The interior of the cone shell 621 is fixedly connected with a group of five guide rail blocks 622 arranged at equal angles. The inner sides of the guide rail blocks 622 are slidably connected with clamps 623. The side of the head 623 close to the base shell 61 is fixedly connected with an elastic pull rope 624, and the end of the elastic pull rope 624 away from the clamping head 623 is fixedly connected to the inner wall of the guide rail block 622. A group of guide frames 63 are slidably connected to the inner sides of the slide rails 614. Pins 64 whose upper ends are fixedly connected to the guide frames 63 are slidably connected to the inner sides of the slide rails 614. Matching blocks 65 are hingedly connected to the front and rear sides of the upper end face of the base shell 61. The transmission part 7 includes a linkage frame 71 fixedly connected to the lower end face of the sub-table 31. A group of two sleeves 72 on the inner side of the shell 611 are fixedly connected to the linkage frame 71. An annular groove 73 is provided on the left and right sides of the sleeve 72. The inner side of the ring groove 73 is provided with a spring 74, and the inner side of the ring groove 73 is slidably connected with a push ring 75. The two ends of the spring 74 are fixedly connected to the ring groove 73 and the push ring 75 respectively. Through this arrangement, the wire rope drive unit 4 and the vehicle body 3 need to pass through the intermediate connection module 6 to be connected. Under normal circumstances, the intermediate connection module 6 does not contact the steel rope 44 and the matching frame 34, so that the walking device 33 does not move and the steel rope 44 moves alone. The steel rope 44 can only rotate idly; the clamp 623 is composed of a slider, an arc block and a damping block. The arc block and the damping block of the clamp 623 are both arranged on the outside of the guide rail block 622, and the steel rope 44 is arranged on the inside of the intermediate connection module 6. 4 and the clamping head 623 are provided with a spacing, and a group of clamping heads 623 are all arranged around the outside of the steel rope 44. Through this arrangement, the group of clamping heads 623 can clamp and lock the steel rope 44 after displacement and retraction; the linkage frame 71 is composed of folding rods on both sides and a middle rod in the middle. The linkage frame 71 is slidably connected to the through rail 52, and the linkage frame 71 is slidably connected to the cross rail 612. Through this arrangement, the linkage frame 71 can be displaced with the platform body 3 without being affected by interference. The steel ropes 44 are all arranged on the inner side of the sleeve 72, and a spacing is provided between the steel ropes 44 and the inner wall of the sleeve 72. Through this arrangement, the displacement of the steel ropes 44 does not affect the sleeve 72.The rigidity of the spring 74 is greater than the elastic strength of the elastic pull rope 624. Through this arrangement, the push ring 75 can be unaffected by the elasticity of the elastic pull rope 624, pushing a group of clamps 623 of the locking portion 62 to move. The lower end of the pin 64 is a pointed setting, and the pins 64 are all inserted into the inner side of the slot 56. Through this arrangement, the central connecting module 6 can be positioned on the upper side of the support plate 55. The matching blocks 65 are both arranged on the front and rear sides of the guide frame 63. Through this arrangement, the upward displacement of the guide frame 63 will push the matching blocks 65 on both sides to rotate. The matching blocks 65 are all set Positioned inside the mating frame 34, the mating block 65 has a set of protrusions on its inclined surface, and grooves on both sides of the inner wall of the mating frame 34. This arrangement allows the mating block 65 to be mated with the mating frame 34 after rotation. The side of the mating block 65 closest to the guide frame 63 is a curved surface, which ensures linear contact between the mating block 65 and the guide frame 63 after rotation. This reduces the contact surface between the guide frame 63 and the mating block 65, ensuring that when the guide frame 63 is reset downward by gravity, it is not affected by interference from the mating blocks 65 on both sides.

[0041] Workflow: The transport and displacement operation of the heavy-loaded multi-drive exchangeable transfer platform is as follows. Note 1: All electrical appliances are powered by an external power supply and are controlled by an external controller; Note 2: The intermediate module 6 does not contact the steel rope 44 or the matching frame 34 of the platform body 3 in the normal state; Note 3: The pin 64 of the intermediate module 6 is inserted into the inner side of the slot 56 of the support plate 55 in the normal state, and the position of the intermediate module 6 is positioned by the slot 56 and the pin 64; Note 4: The operation of the wire rope drive unit 4 is as follows: the motor 41 is controlled to drive the drive roller 42 to rotate, and then drive a group of two steel ropes 44 to synchronously displace and rotate on the drive roller 42 and the drive frame 43; the dual power source of the walking device 33 and the wire rope drive unit 4 It can be used as the driving power of the vehicle body 3, and the wire rope drive unit 4 and the vehicle body 3 need to be connected through the intermediate connection module 6. The intermediate connection module 6 does not contact the steel rope 44 of the wire rope drive unit 4 in the normal state. Therefore, only starting the wire rope drive unit 4 will cause the steel rope 44 to idle without driving the vehicle body 3. It is necessary to start the walking device 33 and the wire rope drive unit 4 at the same time to drive the vehicle body 3 to move with a dual power source. The operation is as follows: start the walking device 33 and the wire rope drive unit 4 at the same time, so that the walking device 33 drives the sub-platform 31 to move to the left, and the steel rope 44 of the wire rope drive unit 4 moves to the left. The displacement of the sub-platform 31 will drive the matching frame 34 and the transmission part 7 to move, and the transmission part 7 When the locking cam 62 is in the unlocked position, the spring 74 is released, and the locking cam 623 is released, so that the locking cam 62 is locked. The mating blocks 65 on both sides are squeezed, so that the mating blocks 65 on both sides rotate and then engage with the mating frame 34 (the protrusions of the mating blocks 65 are stuck in the grooves of the mating frame 34). Through the above operation, the steel rope 44 and the vehicle body 3 are connected through the intermediate connection module 6. At this time, the displacement of the steel rope 44 can drive the vehicle body 3 to move to the left through the intermediate connection module 6. After the left displacement is completed, when the vehicle body 3 needs to be reset to the right, if only the wire rope driving part 4 is started, the steel rope 44 will move to the right. Since it has the same reset direction as the group of clamps 623 of the left locking part 62, the rightward movement of the steel rope 44 will drive each clamp 623 to move to the right and reset, and each clamp 623 is driven by the transmission of the steel rope 44 and the tension of the elastic pull rope 624.When the lever 72 is in the unlocked position, the lever 74 will be in the unlocked position, and the locking cam 74 will be in the unlocked position when the lever 72 is unlocked. During transportation and displacement, the transmission wire rope can be prevented from independently driving the transfer platform to move, and the wire rope can be prevented from breaking due to excessive force; the protective operation is as follows: the steel rope 44 of the wire rope drive unit 4 drives the platform body 3 to move through the middle connecting module 6. If the steel rope 44 breaks accidentally, it will most likely break inside the rail shell 51. The sealing soft belt 54 on the rail shell 51 and the upper side of the steel rope 44 that seals the upper opening of the rail shell 51 can prevent the broken steel rope 44 from escaping from the rail shell 51 of the protective unit 5. If the exposed steel rope 44 on both sides breaks, the exposed area is small, and even if the breakage occurs, the scope of the impact is extremely small, and it will not affect the staff. Therefore, the steel rope used for driving the displacement of the heavy-duty multi-drive exchange transfer platform will not cause harm to nearby staff after it breaks.

[0042] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and core ideas of this application. The above are only preferred implementation methods of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the application's concepts and technical solutions to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A heavy-duty multi-drive exchange type vehicle transfer platform with wire rope breakage protection, comprising a track (2), a vehicle platform body (3), a wire rope driving part (4), a protection part (5), a middle connection module (6), a transmission part (7), and a foundation pit (1) for accommodating the track (2), the vehicle platform body (3), the wire rope driving part (4), the protection part (5), the middle connection module (6), and the transmission part (7), characterized in that: Both sides of the interior of the foundation pit (1) are fixedly connected to tracks (2), a platform body (3) is installed on the upper side of the track (2), the platform body (3) comprises a group of two sub-platforms (31) arranged on the left and right, a connecting frame (32) is fixedly connected between the sub-platforms (31) in one group, a walking device (33) matching with the track (2) is installed on the lower side of the corner of each sub-platform (31), and a matching frame (34) is fixedly connected to the lower side of each sub-platform (31) symmetrically in front and back, a wire rope driving part (4) is installed on the inner side of the foundation pit (1), and the wire rope driving part (4) comprises a motor (41) fixed to the right inner side of the foundation pit (1), and the end of the output shaft of the motor (41) is fixedly connected to the base A driving roller (42) is rotatably connected to the inner wall of the pit (1); a driving frame (43) is rotatably connected to the inner left part of the pit (1); a set of two steel ropes (44) are sleeved on the outer sides of the driving frame (43) and the driving roller (42); the outer sides of the steel ropes (44) are sleeved with a protective part (5) fixedly connected to the inner wall of the pit (1); the protective part (5) comprises a rail shell (51); the front and rear sides of the rail shell (51) are provided with a through rail (52); the front and rear sides of the upper opening of the rail shell (51) are provided with a fixed expansion groove (53); the inner side of the fixed expansion groove (53) is fixedly connected to a sealing soft belt (54); the inner side of the rail shell (51) is fixedly connected to a support plate (55); ), a group of multiple slots (56) are provided on both the front and rear sides of the upper end face of the support plate (55), a middle connection module (6) located on the lower side of the matching frame (34) is provided on both sides of the upper part of the support plate (55), a transmission part (7) located on the inner side of the middle connection module (6) is fixedly connected to the lower side of the sub-table (31), the middle connection module (6) comprises a base shell (61), a locking part (62), a guide frame (63), a pin bar (64) and a matching block (65), the base shell (61) comprises a shell (611) arranged on the inner side of the rail shell (51), the front and rear sides of the shell (611) are provided with cross rails (612), the upper sides of the shell (611) are provided with rail openings (613), the shell Slide rails (614) are provided on both the left and right sides of the front and rear end surfaces of the body (611); the left and right sides of the base shell (61) are fixedly connected with locking parts (62); the locking parts (62) include a cone shell (621); a group of five guide rail blocks (622) arranged at equal angles are fixedly connected inside the cone shell (621); the inner sides of the guide rail blocks (622) are slidably connected with clamps (623); the sides of the clamps (623) close to the base shell (61) are fixedly connected with elastic pull ropes (624); the ends of the elastic pull ropes (624) away from the clamps (623) are fixedly connected to the inner walls of the guide rail blocks (622); the inner sides of a group of the rail openings (613) are slidably connected with guide frames (63);The inner side of the slide rail (614) is slidably connected with a pin bar (64) whose upper end is fixedly connected to the guide frame (63); the upper end face of the base shell (61) is hingedly connected with a matching block (65) on both the front and rear sides; the transmission part (7) comprises a linkage frame (71) fixedly connected to the lower end face of the sub-table (31); the linkage frame (71) is fixedly connected with a set of two sleeves (72) located on the inner side of the shell (611); the sleeves (72) are provided with annular grooves (73) on the left and right sides; the inner side of the annular groove (73) is provided with a spring (74); the inner side of the annular groove (73) is slidably connected with a push ring (75); the two ends of the spring (74) are respectively fixedly connected to the annular groove (73) and the push ring (75).

2. The heavy-duty multi-drive exchangeable vehicle transfer platform with wire rope breakage protection according to claim 1 is characterized in that: The traveling device (33) is composed of a wheel housing, a rail wheel, a driving wheel, a transmission box and a driving motor, and the driving wheel of the traveling device (33) and the driving motor are driven via the transmission box.

3. The heavy-duty multi-drive exchangeable vehicle transfer platform with wire rope breakage protection according to claim 1 is characterized in that: The drive frame (43) and the drive roller (42) are both arranged on the left and right sides of the protective part (5); the drive frame (43) is composed of a shaft and a synchronous disk; the drive roller (42) is composed of a rotating shaft, a roller body and a synchronous roller disk; the synchronous disk of the drive frame (43) and the synchronous roller disk of the drive roller (42) are arranged to be laterally aligned; and the steel ropes (44) are both sleeved on the outer sides of the synchronous disk of the drive frame (43) and the synchronous roller disk of the drive roller (42).

4. The heavy-duty multi-drive exchangeable vehicle transfer platform with wire rope breakage protection according to claim 1 is characterized in that: The horizontal flat sections of the steel rope (44) are all arranged on the inner side of the rail shell (51), a gap is left between the steel rope (44) and the through hole of the rail shell (51), the steel rope (44) is arranged on the lower side of a group of sealing soft belts (54), the group of sealing soft belts (54) are attached to each other, and the diameter of the steel rope (44) is larger than the rail width of the through rail (52).

5. The heavy-duty multi-drive exchangeable vehicle transfer platform with wire rope breakage protection according to claim 1 is characterized in that: The chuck (623) is composed of a sliding block, an arc block and a damping block. The arc block and the damping block of the chuck (623) are both arranged on the outside of the guide rail block (622). The steel ropes (44) are both arranged on the inside of the middle connection module (6). A spacing is provided between the steel ropes (44) and the chuck (623). A group of the chucks (623) are all arranged around the outside of the steel ropes (44).

6. The heavy-duty multi-drive exchangeable vehicle transfer platform with wire rope breakage protection according to claim 1 is characterized in that: The linkage frame (71) is composed of folding rods on both sides and a middle rod in the middle. The linkage frames (71) are slidably connected to the through rails (52). The linkage frames (71) are slidably connected to the cross rails (612). The steel ropes (44) are arranged on the inner side of the sleeve (72). A spacing is provided between the steel ropes (44) and the inner wall of the sleeve (72).

7. The heavy-duty multi-drive exchangeable vehicle transfer platform with wire rope breakage protection according to claim 1 is characterized in that: The rigidity of the spring (74) is greater than the elastic strength of the elastic pull rope (624); the lower end of the pin bar (64) is pointed; the pin bars (64) are inserted into the inner side of the slot (56); the matching blocks (65) are arranged on the front and rear sides of the guide frame (63); the matching blocks (65) are arranged on the inner side of the matching frame (34); the inclined surfaces of the matching blocks (65) are provided with a group of protrusions; the inner walls of the matching frame (34) are provided with a group of grooves; and the side of the matching blocks (65) close to the guide frame (63) is a curved surface.

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