CN118289409A - Rescue system suitable for goods shelf bidirectional box shuttle and control method - Google Patents

Abstract

The invention discloses a rescue system and a control method suitable for a goods shelf bidirectional box shuttle vehicle, wherein the system comprises at least two layers of goods shelves, a layer-changing lifting machine and a transfer track of at least one roadway in the horizontal direction in the vertical direction, and the system further comprises: the rescue vehicle is used for dragging the fault multi-layer shuttle to move along the multi-pass track, unlocking the band-type brake of the fault multi-layer shuttle and detecting the position of the fork of the fault multi-layer shuttle; the transfer direct penetration is used for transferring the multilayer shuttle car and the rescue car to move to the maintenance station along a direct penetration track perpendicular to the direction of the roadway; the maintenance station is used for receiving the fault multi-layer shuttle and waiting for manual maintenance; the transfer platform of the layer-changing elevator can move up and down along the vertical direction and is used for lifting the fault multi-layer shuttle car and the rescue car from the goods shelf to the ground, and entering a maintenance channel to reach a maintenance station. The rescue car automatically drags the fault multi-layer shuttle car to the track end, and the fault multi-layer shuttle car is lifted to the ground through the layer-changing lifting machine, so that the fault multi-layer shuttle car does not need to be checked or maintained in a roadway or at the roadway end.

Description

Rescue system suitable for goods shelf bidirectional box shuttle and control method

Technical Field

The invention relates to the technical field of logistics storage system transportation equipment, in particular to a rescue system suitable for a goods shelf bidirectional part box shuttle and a control method.

Background

A multi-deck shuttle system is typically a multi-deck shuttle that runs on each deck of track within a rack aisle, typically between 800mm and 1400mm in aisle width, 300mm to 800mm in deck spacing, and a small running space. The number of shelf layers of the multi-layer shuttle system can be up to 30-40 layers. When the number of goods shelf lanes is increased according to the required capacity and the size of the site, the number of multi-layer shuttling vehicles is increased, so that the number of faults is increased; personnel are needed to enter the roadway when the multi-layer shuttle system is in fault, the fault condition is checked, the reasons are analyzed, and the multi-layer shuttle system is maintained by using a proper tool according to the condition, so that the multi-layer shuttle task of the whole maintenance layer can be delayed for a long time after the multi-layer shuttle system is in fault. In addition, the environment with high-altitude operation and small space of the goods shelf can cause the multi-layer shuttle to be easily restricted by a plurality of problems such as low light, difficult carrying of tools and the like during maintenance, so that the maintenance operation is difficult and the safety is low.

The existing rescue vehicle on the market is a rescue vehicle operated by personnel in the whole process, has a simple function, can drive wheels to advance and retreat by hand-operated handles, is provided with frames around a vehicle body, protects people standing in the vehicle body, is provided with hooks in front of the vehicle body, can be manually hung on a multi-layer shuttle, and drags the multi-layer shuttle to return to the end. However, this solution is more limited and requires a special maintenance area to be arranged at the rail end for maintenance and for placing the maintenance trolley.

Disclosure of Invention

The invention aims at: according to the rescue system and the control method for the bidirectional box shuttle of the goods shelf, the fault multilayer shuttle is automatically dragged to the end of the track, then lifted to the ground through the layer-changing elevator, and then dragged out of a warehouse area, so that inspection and maintenance in a roadway or the end of the roadway are not needed.

The technical scheme of the invention is as follows:

Rescue system suitable for two-way case shuttle of goods shelves, including goods shelves, layer change lifting machine and the transfer track in at least one tunnel of two-layer horizontal direction at least of vertical direction, its characterized in that still includes:

the rescue vehicle is used for dragging the fault multi-layer shuttle to move along the multi-pass track, unlocking the band-type brake of the fault multi-layer shuttle and detecting the position of the fork of the fault multi-layer shuttle;

the transfer and direct-passing device moves along the vertical direction of the multilayer shuttle rail on the goods shelf and is used for transferring the multilayer shuttle and the rescue vehicle to move to the maintenance station along the direct-passing rail vertical to the roadway direction;

The maintenance station is used for receiving the fault multi-layer shuttle and waiting for manual maintenance, is provided with a manual transfer rail, can be manually operated to move the half-section station carrying the rescue vehicle to the other station to be in butt joint with the rail, and can be directly carried through from the manual transfer rail by carrying and then enter the warehouse area to rescue the fault multi-layer shuttle again;

The transfer platform of the layer-changing elevator can move up and down along the vertical direction and is used for lifting the fault multi-layer shuttle car and the rescue car from the goods shelf to the ground, and entering a maintenance channel to reach a maintenance station.

Furthermore, a fork bracket is arranged below the front part of the frame of the rescue vehicle, at least two fork motors are connected to the tail ends of the fork bracket, the rotating shafts of the forks are parallel to the running motion direction of the rescue vehicle, copper sheets are arranged on the fork motors of the fork, and the copper sheet connecting line can provide proper small current when appropriate; at least two photoelectric switches are arranged above the travelling wheel support of the rescue vehicle.

Furthermore, the frame of the rescue vehicle is also provided with a laser ranging device, a positioning device, a battery and a communication device, and a battery charging contactor is also arranged below the frame of the rescue vehicle.

Further, the frame of the rescue car is also provided with a buffer and a camera component with a cradle head, the buffer is arranged at the front part of the rescue car, and the camera component is arranged on the frame through a bracket.

Further, a hook fork device is arranged on the multi-layer shuttle, the hook fork device is connected with a hook fork of the rescue vehicle to bear the drag force of the hook fork, a contact block is arranged on the hook fork device, the contact block connecting line receives small current, the multi-layer shuttle running system band-type brake can be unlocked, and when a copper sheet on the hook fork of the rescue vehicle is contacted with the contact block on the hook fork device of the multi-layer shuttle, the rescue vehicle can excite a small current, and the multi-layer shuttle running system unlock band-type brake.

Further, the butt joint positions of the layer changing elevator, the transfer straight-through track, the transfer track and the maintenance station are provided with butt joint buffer devices.

The invention also comprises a rescue system control method suitable for the goods shelf bidirectional box shuttle, which controls a rescue system suitable for the goods shelf bidirectional box shuttle and comprises the following steps:

When the multi-layer shuttle is out of order and needs to be overhauled, the rescue vehicle passes through the transfer direct-through and transfer track and the layer-changing elevator to reach the layer height of the multi-layer shuttle, and reaches the vicinity of the multi-layer shuttle from the side close to the layer-changing elevator;

When the rescue vehicle runs to the distance, a maintainer can control the camera to observe at a distance through the camera with the cradle head, and two photoelectric switches are used for detecting whether the fork is at the middle position or not, if the fork is not at the middle position, the rescue vehicle can try to command the fault multilayer shuttle to move the fork, and when the fork cannot move, the maintenance person waits for processing;

When the fork is in the middle position, the two forks on the fork support are rotated, copper sheets on the two forks are simultaneously supplied to continuous current capable of unlocking the band-type brake, the rescue vehicle slowly moves until the copper sheets on the two forks are in good contact with the contact blocks on the fork device of the multilayer shuttle, the current can unlock the band-type brake of the fault multilayer shuttle, and the rescue vehicle can drag the fault multilayer shuttle to move in a unidirectional manner after continuing to move.

Further, the method also comprises the following steps:

The butt joint positions of the goods shelf and the layer-changing lifting machine, the butt joint positions of the layer-changing lifting machine and the transfer track, the butt joint positions of the transfer track and the transfer straight-through track and the butt joint positions of the transfer straight-through track and the maintenance station track are respectively provided with a butt joint buffer device with the same structure, so that the fixed track is in butt joint with the track on the transfer platform of the movement equipment; when in butt joint, the transfer platform moves, the limit protection device on the transfer platform automatically moves away, the limit buffer protection device on the butt joint buffer device is pushed away, the butt joint of the rail with larger gap is completed originally, the multi-layer shuttle can stably pass through, then the transfer platform resets, after the transfer platform resets, the limit protection device on the transfer platform can be automatically closed along with the reset, and the limit buffer protection device on the butt joint buffer device is closed;

The rescue car drags the multilayer shuttle car to move to the layer change lifting machine department, and the layer change lifting machine is used for changing the photoelectric switch of layer preparation and is in the trigger state, and layer change lifting machine moves and carries the platform operation, makes butt joint buffer device trigger, and the track butt joint has put on, and spacing buffer protection device and spacing protection device have opened, and the rescue car drags trouble multilayer shuttle car to get into and carries the platform, carries the photoelectric switch on the platform and detects equipment and put in place back butt joint buffer device and close, carries the platform and goes up and down to transfer track department.

Further, the method also comprises the following steps:

The upper track of the loading platform of the layer-changing elevator is in butt joint with the transfer track, the rescue car drags the multilayer shuttle car to move on the transfer track, the transfer is directly penetrated to the task rear access equipment, when the transfer is directly penetrated, the transfer is directly penetrated to the transfer platform, the transfer buffer device is triggered, the track is in butt joint, the limit buffer protection device and the limit protection device are opened, and the rescue car drags the fault multilayer shuttle car to enter the transfer direct-penetration transfer platform;

After the photoelectric switch on the transfer platform detects that the equipment is in place, the butt joint buffer device is closed, the transfer direct-penetrating rail runs to the maintenance station, the transfer direct-penetrating rail is in butt joint with the maintenance station, the rescue vehicle drags the multi-layer shuttle to move to the maintenance station, the transfer direct-penetrating buffer device is closed, and the transfer direct-penetrating can leave to execute other tasks;

On the maintenance station, the rescue vehicle reversely runs for a certain distance to enable a copper sheet on the fork motor to be separated from a contact device on the multilayer shuttle, the band-type brake of the fault multilayer shuttle is locked, the running system is locked, the fork motor rotates to a position separated from the contact device and cannot touch the bottom of the multilayer shuttle, the rescue vehicle moves forward to a transferable maintenance station section, and the fault multilayer shuttle is left in place;

The manual transfer rail carries the maintenance station section to another maintenance station, and the rescue vehicle can travel to a charging place or can be directly penetrated by a transfer rail to be taken in for next task.

Further, the rescue vehicle waits at a charging position of a maintenance station area when the multi-layer shuttle vehicle is not in rescue fault.

Compared with the prior art, the invention has the beneficial effects that:

1. The rescue system and the control method for the goods shelf bidirectional box shuttle are reasonable in structure, reliable in use and high in safety, the fault multilayer shuttle is automatically dragged to the end of the track, then lifted to the ground through the layer-changing lifter, and then dragged out of the warehouse, so that the number of times of fault treatment in the warehouse is reduced, and the corresponding multilayer shuttle on the same maintenance layer does not need to stop running;

2. The rescue system comprises a first-level storage area, a second-level storage area, a third-level storage area, a fourth-level storage area, a fifth-level storage area, a sixth-level storage area, a seventh-level storage area, and a fourth-level storage area; the state of the fork of the multi-layer shuttle car can be detected preliminarily, so that the fork is not damaged when the multi-layer shuttle car is dragged; maintenance personnel do not need to enter a warehouse area, and the whole maintenance layer does not need to be suspended;

3. The rescue system comprises a plurality of layers of shuttle vehicles to be maintained, wherein the plurality of layers of shuttle vehicles to be maintained are hooked by adopting rotary hook forks, the hook forks can be hooked when being screwed out, the hook forks cannot be hooked when being screwed in, and the operation of personnel is not needed; the hooking position of the multi-layer shuttle is provided with a support with a spring, two cable contact points are respectively connected to the support and the hooking fork of the multi-layer shuttle, and after the two cable contact points are correspondingly contacted, the fault multi-layer shuttle band-type brake can be unlocked; the sensor on the rescue vehicle can preliminarily judge whether the fault multi-layer shuttle vehicle can be directly moved out of the warehouse without manual intervention.

Drawings

Fig. 1 is a schematic diagram of a rescue system structure suitable for a shuttle car with a goods shelf bidirectional box.

Fig. 2 is a schematic top view of a rescue system structure suitable for a pallet bi-directional box shuttle.

Fig. 3 is a schematic structural diagram of a butt-joint buffer device.

Reference numerals: 1-rescue vehicle, 2-multilayer shuttle, 3-goods shelf, 4-layer change elevator, 5-transfer rail, 6-transfer straight-through rail, 7-transfer straight-through, 8-maintenance station, 9-transferable maintenance station and 10-manual transfer rail;

101-track, 102-rotating shaft and buffer, 103-push rod and push sleeve.

Detailed Description

It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The features and capabilities of the present invention are described in further detail below in connection with examples.

Referring to fig. 1-3,1. A rescue system for a bidirectional box shuttle for a pallet, the rescue system comprises at least two layers in a vertical direction, a pallet 3 including at least one roadway in a horizontal direction, a layer-changing elevator 4, a transfer rail 5, and further comprises:

The rescue vehicle 1 is used for dragging the fault multi-layer shuttle vehicle 2 to move along the multi-pass track, unlocking the band-type brake of the fault multi-layer shuttle vehicle and detecting the position of the fork of the fault multi-layer shuttle vehicle;

the transfer straight-through 7 moves along the vertical direction of the track of the multilayer shuttle car 2 on the goods shelf and is used for transferring the multilayer shuttle car 2 and the rescue car 1 to move to the maintenance station 8 along the straight-through track vertical to the roadway direction;

The maintenance station 8 is used for receiving the fault multilayer shuttle 2 and waiting for manual maintenance, the maintenance station 8 is provided with a manual transfer rail 10, a half-section station carrying the rescue vehicle can be manually operated to move to the other station to be in butt joint with the rail, and the rescue vehicle 1 can be transferred from the manual transfer rail 10 by a transfer straight-through 7 and then re-enter the warehouse area to rescue the fault multilayer shuttle 2;

The transfer platform of the layer-changing elevator 4 can move up and down along the vertical direction and is used for lifting the fault multi-layer shuttle car 2 and the rescue car 1 from a goods shelf to the ground, and entering a maintenance channel to reach a maintenance station 8.

A fork bracket is arranged below the front part of the frame of the rescue vehicle 1, at least two fork motors are connected to the tail ends of the fork bracket, the rotating shafts of the forks are parallel to the running motion direction of the rescue vehicle, copper sheets are arranged on the fork of the fork motors, and the copper sheet connecting circuit can provide proper small current when appropriate; at least two photoelectric switches are arranged above the travelling wheel support of the rescue vehicle 1.

The frame of the rescue vehicle 1 is also provided with a laser ranging device, a positioning device, a battery and a communication device, and a battery charging contactor is also arranged below the frame of the rescue vehicle.

The frame of the rescue car 1 is also provided with a buffer and a camera component with a cradle head, the buffer is arranged at the front part of the rescue car, and the camera component is arranged on the frame through a bracket.

The multi-layer shuttle car is characterized in that a fork device is arranged on the multi-layer shuttle car 2, the fork device is connected with a fork of the rescue car to bear the drag force of the fork, a contact block is arranged on the fork device, a contact block connecting line receives small current and can unlock the band-type brake of the multi-layer shuttle car running system, and when a copper sheet on the fork of the rescue car 1 contacts with the contact block on the fork device of the multi-layer shuttle car 2, the rescue car 1 can excite a small current and the multi-layer shuttle car running system unlocks the band-type brake.

And a butt joint buffer device is arranged at the butt joint part of the layer-changing lifting machine 4, the transfer straight-through track 6, the transfer track 5 and the maintenance station 8.

The invention also comprises a rescue system control method suitable for the goods shelf bidirectional box shuttle, which controls a rescue system suitable for the goods shelf bidirectional box shuttle and comprises the following steps:

when the multi-layer shuttle 2 has faults and needs to be overhauled, the rescue vehicle 1 passes through the transfer direct-through 7, the transfer rail 5 and the layer-changing lifter 4 to reach the layer height of the fault multi-layer shuttle 2, and reaches the vicinity of the fault multi-layer shuttle from the side close to the layer-changing lifter 4;

The rescue vehicle 1 detects the distance of the multilayer shuttle 2 through laser ranging, when the rescue vehicle runs to the distance, a maintainer can control the camera to observe at a distance through the camera with the cradle head, two photoelectric switches are used for detecting whether a fork is at an intermediate position or not, if the fork is not at the intermediate position, the rescue vehicle can attempt to command the fault multilayer shuttle 2 to move the fork, and when the fork cannot move, the rescue vehicle waits for personnel to process;

when the fork is in the middle position, the two forks on the fork support are rotated, meanwhile, the copper sheets on the two forks are given continuous current capable of unlocking the band-type brake, the rescue vehicle 1 slowly moves until the copper sheets on the two forks are in good contact with the contact blocks on the fork device of the multilayer shuttle 2, the current can unlock the band-type brake of the fault multilayer shuttle, and the rescue vehicle 1 can drag the fault multilayer shuttle to move unidirectionally after continuing to move.

The method also comprises the following steps:

the butt joint positions of the goods shelves 3 and the layer-changing lifting machine 4, the butt joint positions of the layer-changing lifting machine 4 and the transfer rail 5, the butt joint positions of the transfer rail 5 and the transfer straight-through rail 6 and the butt joint positions of the transfer straight-through rail 6 and the maintenance station 8 are respectively provided with a butt joint buffer device with the same structure, so that the fixed rail is in butt joint with the rail on the transfer platform of the movement equipment; during docking, the transfer platform moves, the limiting protection device on the transfer platform is automatically moved away, the limiting buffer protection device on the docking buffer device is pushed away, the rail with larger gap is docked, the multi-layer shuttle 2 can pass through stably, then the transfer platform is reset, after the transfer platform is reset, the limiting protection device on the transfer platform is automatically closed along with the transfer platform, and the limiting buffer protection device on the docking buffer device is closed;

The rescue car 1 drags the multilayer shuttle car 2 to move to the place of the layer-changing lifting machine 4, the layer-changing lifting machine 4 receives a task to access equipment, a photoelectric switch used for layer-changing preparation is in a triggering state, the layer-changing lifting machine 4 moves to a transfer place, a butt joint buffer device is triggered, a track is butt-jointed, a limit buffer protection device and a limit protection device are opened, the rescue car 1 drags the fault multilayer shuttle car 2 to enter the transfer place, the butt joint buffer device is closed after the photoelectric switch on the transfer place detects the equipment in place, and the transfer place is lifted to the transfer track.

The method also comprises the following steps:

The upper track of the cargo carrying platform of the layer-changing elevator 4 is in butt joint with the transfer track 5, the rescue car 1 drags the multilayer shuttle car 2 to move on the transfer track, the transfer direct-through 7 is connected to the task rear access equipment, when the transfer direct-through 7 arrives, the transfer direct-through 7 is operated, the butt joint buffer device is triggered, the track is in butt joint, the limit buffer protection device and the limit protection device are opened, and the rescue car 1 drags the fault multilayer shuttle car 2 to enter the transfer direct-through 7;

After the photoelectric switch on the transfer platform detects that the equipment is in place, the butt joint buffer device is closed, the transfer direct-penetrating rail 6 is in butt joint with the maintenance station 8 when the transfer direct-penetrating rail runs to the maintenance station, the rescue vehicle 1 drags the multilayer shuttle 2 to move to the maintenance station, the transfer direct-penetrating 7 is in butt joint buffer device is closed, and the transfer direct-penetrating 7 can leave to execute other tasks;

On the maintenance station 8, the rescue vehicle 1 reversely runs for a certain distance to enable a copper sheet on the fork motor to be separated from a contact device on the multilayer shuttle 2, the band-type brake of the fault multilayer shuttle 2 is locked, the running system is locked, the fork motor rotates to a position which is separated from the contact device and cannot touch the bottom of the multilayer shuttle 2, the rescue vehicle 1 forwards moves to a 9-position section of a transferable maintenance worker, and the fault multilayer shuttle 2 is left in place;

The manual transfer rail 10 carries the maintenance station 8 to another maintenance station, and the rescue car 1 can travel to a charging place or pass through the transfer straight 7 to be taken in for the next task.

And waiting at the charging position of the area of the maintenance station 8 when the rescue vehicle 1 does not rescue the fault multi-layer shuttle 2.

The docking buffer device is shown in fig. 3, and comprises a track 101, and a rotating shaft, a buffer 102, a push rod and a push sleeve 103 are arranged on the track 101. The limiting buffer protection device does not give a graphical sign, and the rotating shaft and the buffer in the buffer 102 are pointed out by the limiting buffer protection device; the limiting and protecting device is not provided with a graphical sign and is positioned on the transfer platform of the layer-changing elevator and the transfer direct-through transfer platform.

The above examples merely illustrate specific embodiments of the application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the application, which fall within the scope of protection of the application.

Claims (10)

1. Rescue system suitable for two-way case shuttle of goods shelves, including goods shelves (3), layer change lifting machine (4) and transfer track (5) of at least two-layer horizontal direction at least one tunnel of vertical direction, its characterized in that still includes:

The rescue vehicle (1) is used for dragging the fault multi-layer shuttle vehicle (2) to move along the multi-pass track, unlocking the band-type brake of the fault multi-layer shuttle vehicle and detecting the position of the fork of the fault multi-layer shuttle vehicle;

The transfer straight-through device (7) moves along the vertical direction of the track of the multi-layer shuttle car (2) on the goods shelf and is used for transferring the multi-layer shuttle car (2) and the rescue car (1) to move to the maintenance station (8) along the straight-through track vertical to the roadway direction;

The maintenance station (8) is used for receiving the fault multilayer shuttle (2) and waiting for manual maintenance, the maintenance station (8) is provided with a manual transfer rail (10), a half-section station carrying the rescue vehicle can be manually operated to move to the other station to be in butt joint with the rail, the rescue vehicle (1) can be transferred from the manual transfer rail (10) by transferring the fault multilayer shuttle (2) through a transfer straight-through (7), and the fault multilayer shuttle can reenter a warehouse area for rescue;

The transfer platform of the layer-changing elevator (4) can move up and down along the vertical direction and is used for lifting the fault multi-layer shuttle car (2) and the rescue car (1) from a goods shelf to the ground, and entering a maintenance channel to reach a maintenance station (8).

2. The rescue system for the goods shelf bidirectional box shuttle vehicle according to claim 1, wherein a fork bracket is arranged below the front part of the frame of the rescue vehicle (1), at least two fork motors are connected to the tail ends of the fork brackets, the rotating shafts of the forks are parallel to the running motion direction of the rescue vehicle, copper sheets are arranged on the fork motors, and the copper sheet connecting line can provide small current when appropriate; at least two photoelectric switches are arranged above the travelling wheel support of the rescue vehicle (1).

3. The rescue system suitable for the goods shelf bidirectional box shuttle vehicle according to claim 2 is characterized in that a laser ranging device, a positioning device, a battery and a communication device are further arranged on a frame of the rescue vehicle (1), and a battery charging contactor is further arranged below the frame of the rescue vehicle.

4. A rescue system for a two-way box shuttle for a storage rack as claimed in claim 3, wherein the frame of the rescue vehicle (1) is further provided with a buffer and a camera assembly with a cradle head, the buffer is mounted at the front part of the rescue vehicle, and the camera assembly is mounted on the frame through a bracket.

5. The rescue system for the goods shelf bidirectional box shuttle is characterized in that a fork device is arranged on the multilayer shuttle (2), the fork device is connected with a fork of the rescue vehicle to bear the pulling force of the fork, a contact block is arranged on the fork device, the contact block connecting line receives small current to unlock the band-type brake of the multilayer shuttle running system, and when a copper sheet on the fork of the rescue vehicle (1) contacts with the contact block on the fork device of the multilayer shuttle (2), the rescue vehicle (1) can excite the small current, and the multilayer shuttle running system unlocks the band-type brake.

6. Rescue system for a pallet bi-directional component box shuttle according to claim 1, characterized in that the butt joint of the layer change elevator (4), the transfer straight-through rail (6), the transfer rail (5) and the maintenance station (8) is provided with a butt joint buffer.

7. A rescue system control method for a pallet bidirectional box shuttle, characterized by controlling a rescue system for a pallet bidirectional box shuttle according to any one of claims 1 to 6, comprising the steps of:

When the multi-layer shuttle (2) fails and needs to be overhauled, the rescue vehicle (1) passes through the transfer direct-through (7), the transfer rail (5) and the layer-changing lifter (4) to reach the layer height of the failed multi-layer shuttle (2), and reaches the vicinity of the failed multi-layer shuttle from the side close to the layer-changing lifter (4);

The rescue vehicle (1) detects the distance of the multilayer shuttle vehicle (2) through laser ranging, when the rescue vehicle runs to the distance, a maintainer can control the camera to observe at a distance through the camera with the cradle head, two photoelectric switches are used for detecting whether a fork is at an intermediate position or not, if the fork is not at the intermediate position, the rescue vehicle can attempt to command the fault multilayer shuttle vehicle (2) to move the fork, and when the fork cannot move, the rescue vehicle waits for personnel to process the fork;

When the fork is in the middle position, the two fork on the fork support are enabled to rotate, meanwhile, copper sheets on the two fork are enabled to be provided with continuous current capable of unlocking the band-type brake, the rescue vehicle (1) moves slowly, the current can enable the fault multilayer shuttle band-type brake to unlock until the copper sheets on the two fork are in good contact with the contact blocks on the fork device of the multilayer shuttle (2), and the rescue vehicle (1) can drag the fault multilayer shuttle to move in a unidirectional mode after continuing to move.

8. The rescue system control method for a pallet bi-directional component box shuttle of claim 7 further comprising the steps of:

The butt joint positions of the goods shelves (3) and the layer-changing lifting machine (4), the butt joint positions of the layer-changing lifting machine (4) and the transfer track (5), the butt joint positions of the transfer track (5) and the transfer straight-through track (6) and the butt joint positions of the transfer straight-through track (6) and the track of the maintenance station (8) are respectively provided with a butt joint buffer device with the same structure, so that the fixed track is in butt joint with the track on the transfer station of the movement equipment; when in butt joint, the transfer platform moves, the limit protection device on the transfer platform is automatically moved away, the limit buffer protection device on the butt joint buffer device is pushed away, the butt joint of the rail with larger gap is completed originally, the multi-layer shuttle (2) can stably pass through, then the transfer platform is reset, after the transfer platform is reset, the limit protection device on the transfer platform is automatically closed along with the reset, and the limit buffer protection device on the butt joint buffer device is closed;

The rescue vehicle (1) drags the multilayer shuttle (2) to move to the layer-changing lifting machine (4), the layer-changing lifting machine (4) receives equipment from a task, a photoelectric switch used for layer-changing preparation is in a triggering state, the layer-changing lifting machine (4) moves to a transfer platform, a butt-joint buffer device is triggered, a track is butt-jointed, a limit buffer protection device and a limit protection device are opened, the rescue vehicle (1) drags the fault multilayer shuttle (2) to enter the transfer platform, the photoelectric switch on the transfer platform detects that the equipment is in place, the butt-joint buffer device is closed, and the transfer platform is lifted to a transfer track.

9. The rescue system control method for a pallet bi-directional component box shuttle of claim 8, further comprising the steps of:

The method comprises the steps that a track on a cargo table of a layer-changing elevator (4) is in butt joint with a transfer track (5), a rescue vehicle (1) drags a multilayer shuttle vehicle (2) to move on the transfer track, a transfer straight-through (7) is connected to a task and then receives equipment, when the transfer straight-through (7) arrives, a transfer table on the transfer straight-through (7) moves, a butt joint buffer device is triggered, the track is in butt joint, a limit buffer protection device and a limit protection device are opened, and the rescue vehicle (1) drags a fault multilayer shuttle vehicle (2) to enter the transfer straight-through (7);

After the photoelectric switch on the transfer platform detects that the equipment is in place, the butt joint buffer device is closed, the transfer direct-penetrating rail (6) is in butt joint with the maintenance station (8), the rescue vehicle (1) drags the multilayer shuttle vehicle (2) to move to the maintenance station, the transfer direct-penetrating (7) butt joint buffer device is closed, and the transfer direct-penetrating (7) can leave to execute other tasks;

on a maintenance station (8), the rescue vehicle (1) reversely runs for a certain distance to enable a copper sheet on the fork motor to be separated from a contact device on the multilayer shuttle (2), the locking brake of the fault multilayer shuttle (2) is locked, a running system is locked, the fork motor rotates to a position which is separated from the contact device and cannot touch the bottom of the multilayer shuttle (2), the rescue vehicle (1) moves forward to a position section of a transferable maintenance worker (9), and the fault multilayer shuttle (2) is left in place;

The manual transfer rail (10) carries the maintenance station (8) to another maintenance station, and the rescue vehicle (1) can travel to a charging place or can be transferred to a straight through (7) to be taken in for next task.

10. The rescue system control method for a pallet bi-directional box shuttle according to any one of claims 8-9, wherein the rescue vehicle (1) waits at a maintenance station (8) area charge when a failed multi-layer shuttle (2) is not rescue.