Material conveying system

Abstract

The utility model provides a material carrying system, and relates to the technical field of semiconductor manufacturing. Comprising a carrying assembly used for carrying materials; the driving wheel set is arranged at one end of the top of the carrying assembly, and the driving wheel set is used for connecting the carrying assembly to the track in a sliding mode and taking electricity from the track to drive the carrying assembly to move along the track; the driven wheel set is located at the top of the carrying assembly, is opposite to the driving wheel set and is used for connecting the carrying assembly to the track in a sliding manner; the brake is arranged on the driving wheel set, and when the rail is powered off, the brake locks the driving wheel set; the standby power supply is electrically connected with the brake when the track is powered off; and the controller is electrically connected with the standby power supply and used for controlling whether the standby power supply supplies power to the brake or not. The working efficiency can be improved, the climbing operation frequency of workers is avoided, the safety risk caused by climbing operation is reduced, and the operation safety is improved.

Description

Technical Field

[0001] This application relates to the field of semiconductor manufacturing technology, and in particular to material handling systems. Background Technology

[0002] In the semiconductor manufacturing industry, OHT (Overhead Hoist Transport) is an important piece of equipment used to transport wafer carriers in cleanrooms. During normal operation, the OHT draws power from the power supply system on the track through a pickup coil, and then converts the induced AC power into 320V DC power through the PCB (Power Supply Board) to drive the main traveling motor and lifting motor.

[0003] When existing aerial transport trolleys stop operating due to power outages or other abnormalities, the brakes de-energize and lock the wheels, preventing the trolley from moving. Traditional methods require multiple workers to work together, including cutting off the power, climbing to heights, powering the brakes from scaffolding, and pushing the trolley. The scaffolding needs to be re-secured after each movement. This method requires frequent climbing, which is not only inefficient but also poses a high safety risk and can easily lead to injuries. Utility Model Content

[0004] This application provides a material handling system to solve the technical problems mentioned in the background art, such as the inefficiency and high safety risks associated with frequent climbing operations by workers, which can easily lead to personnel injuries.

[0005] The technical solution adopted by this application to solve the above-mentioned technical problems is as follows:

[0006] This application provides a material handling system, comprising: a carrying assembly for carrying materials; a drive wheel assembly disposed at one end of the top of the carrying assembly, the drive wheel assembly being used to slidably connect the carrying assembly to a track and to draw power from the track to drive the carrying assembly to move along the track; a driven wheel assembly located on top of the carrying assembly and disposed opposite to the drive wheel assembly, the driven wheel assembly being used to slidably connect the carrying assembly to the track; a brake disposed on the drive wheel assembly, the brake locking the drive wheel assembly when the track is de-energized; a backup power supply, used to electrically connect the brake when the track is de-energized; and a controller electrically connected to the backup power supply, the controller being used to control whether the backup power supply supplies power to the brake.

[0007] Optionally, the backup power supply includes: a power supply battery, used to electrically connect the brake when the track is powered off; an inverter, electrically connected to the power supply battery, wherein when the power supply battery is electrically connected to the brake, the inverter is connected in series with the brake and electrically connected to the drive wheel assembly, the inverter is used to convert the DC current and voltage of the power supply battery into the rated voltage and AC current of the drive wheel assembly to power the drive wheel assembly; and the controller is used to control whether the power supply battery supplies power to the brake and whether the inverter supplies power to the drive wheel assembly.

[0008] Optionally, the material handling system further includes: guide wheels, the guide wheels comprising: a first guide wheel, disposed on the drive wheel assembly, for controlling the direction of the drive wheel assembly; and a second guide wheel, disposed on the driven wheel assembly, connected in parallel with the first guide wheel, for controlling the direction of the driven wheel assembly; when the track is de-energized, the power supply battery is electrically connected to the first guide wheel and the second guide wheel, the power supply battery being used to supply power to the two parallel ends of the first guide wheel and the second guide wheel; the controller is used to control the direction of the current supplied by the power supply battery to the two parallel ends of the first guide wheel and the second guide wheel, and further control the rotation direction of the first guide wheel and the second guide wheel.

[0009] Optionally, the backup power supply is located in the cargo-carrying assembly, which also includes a signal receiver electrically connected to the power supply battery and the inverter. The controller includes a control panel and a signal transmitter disposed within the control panel, the signal transmitter being electrically connected to the control panel. When the track is de-energized, the control panel controls the signal transmitter to send a first power supply signal to the signal receiver, the signal receiver responding to the first power supply signal by controlling the power supply battery to supply power to the brake. The control panel also controls the signal transmitter to send a second power supply signal to the signal receiver, the signal receiver responding to the second power supply signal by controlling the inverter to supply power to the drive wheel assembly. Finally, the control panel controls the signal transmitter to send a third power supply signal to the signal receiver, the signal receiver responding to the third power supply signal by controlling the power supply battery to supply power to the parallel ends of the first and second guide wheels.

[0010] Optionally, the cargo carrier is further provided with a mounting plate located on the side of the cargo carrier. The mounting plate has multiple through holes, and the backup power supply is connected to the mounting plate by fasteners.

[0011] Optionally, the load-carrying assembly is further provided with a terminal block, which connects to the drive wheel assembly and / or the brake and / or the guide wheel.

[0012] Optionally, the controller includes interconnected terminals, connecting wires, and a control panel; the terminals are connected to the terminal block; the control panel is provided with a main switch and a drive switch, the main switch being used to control the opening and closing of the power supply battery, and the drive switch being used to control the opening and closing of the drive wheel assembly and / or the brake and / or the guide wheel.

[0013] Optionally, the control panel further includes a first guide switch and a second guide switch. The first guide switch controls one side of the first guide wheel and the second guide wheel connected in parallel to the positive or negative terminal of the power supply battery, and the second guide switch controls the other side of the first guide wheel and the second guide wheel connected in parallel to the positive or negative terminal of the power supply battery. When the first guide wheel needs to rotate clockwise and the second guide wheel needs to rotate counterclockwise, the first guide switch controls one side of the first guide wheel and the second guide wheel connected in parallel to the negative terminal of the power supply battery, and the second guide switch controls the other side of the first guide wheel and the second guide wheel connected in parallel to the positive terminal of the power supply battery. When the first guide wheel needs to rotate counterclockwise and the second guide wheel needs to rotate clockwise, the first guide switch controls one side of the first guide wheel and the second guide wheel connected in parallel to the positive terminal of the power supply battery, and the second guide switch controls the other side of the first guide wheel and the second guide wheel connected in parallel to the negative terminal of the power supply battery.

[0014] Optionally, the control panel also includes a first indicator light, which is located near the main switch and connected in series with the brake. The first indicator light and the brake are connected in parallel with the inverter. The control panel also includes a second indicator light, which is located near the drive switch and connected in series with the drive wheel assembly. The control panel also includes a third indicator light, which is located near the first guide switch and connected in series with the first guide wheel and the second guide wheel. The third indicator light illuminates when the first guide wheel rotates clockwise and the second guide wheel rotates counterclockwise. The control panel also includes a fourth indicator light, which is located near the second guide switch and connected in series with the first guide wheel and the second guide wheel. The fourth indicator light illuminates when the first guide wheel rotates counterclockwise and the second guide wheel rotates clockwise.

[0015] Optionally, the terminal block is provided with a first limiting member, and the terminal is provided with a second limiting member. The terminal and the terminal block are mutually limited and connected by the first limiting member and the second limiting member.

[0016] The material handling system provided in this application works in concert with a backup power supply, a controller, and a brake. When the overhead crane loses power, the controller controls the backup power supply to supply power to the brake, thereby unlocking the brake and allowing the load-bearing components to continue moving along the track. This improves work efficiency, avoids workers having to climb to heights, reduces the safety risks associated with working at heights, and enhances operational safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the material handling system of this application;

[0019] Figure 2 This is a side view of the material handling system of this application.

[0020] Figure 3 This is a schematic diagram of the structure of the battery that powers this application;

[0021] Figure 4 This is a schematic diagram of the controller structure of this application;

[0022] Figure 5 This is a circuit diagram of the material handling system of this application.

[0023] Icons: 100 - Loading assembly; 110 - Terminal block; 120 - Mounting plate; 121 - Through hole; 200 - Drive wheel assembly; 300 - Driven wheel assembly; 400 - Backup power supply; 410 - Power supply battery; 500 - Controller; 510 - Terminal block; 520 - Connecting wire; 530 - Control panel; 531 - Main switch; 532 - First indicator light; 533 - Drive switch; 534 - Second indicator light; 535 - First guide switch; 536 - Third indicator light; 537 - Second guide switch; 538 - Fourth indicator light; 600 - First guide wheel; 700 - Second guide wheel; 800 - Brake.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in this application embodiment are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0027] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0029] Existing aerial transport trolleys, when stopped due to power outages or other abnormalities, experience brake deactivation and wheel locking, rendering the trolley immobile. Traditional methods require multiple workers to work together, including disconnecting the power, climbing to scaffolding to reactivate the brakes, and pushing the trolley. The scaffolding needs to be re-secured after each movement, necessitating frequent climbing, which is inefficient and poses significant safety risks, potentially leading to injuries. To address these issues, the embodiments described in this application refer to... Figures 1 to 5 The following technical solutions are provided to overcome the above problems.

[0030] Please refer to Figures 1 to 5 ,in, Figure 5 In the diagram, K is the main switch 531, K1 is the drive switch 533, K2 is the first guide switch 535, K3 is the second guide switch 537, M is the drive wheel set 200, MK is the brake 800, M1 is the first guide wheel 600, M2 is the second guide wheel 700, L1 is the first indicator light 532, L2 is the second indicator light 534, L3 is the third indicator light 536, and L4 is the fourth indicator light 538. This application provides a material handling system, including: a carrying assembly 100 for carrying materials; a drive wheel assembly 200 disposed at one end of the top of the carrying assembly 100, the drive wheel assembly 200 being used to slidably connect the carrying assembly 100 to a track and draw power from the track to drive the carrying assembly 100 to move along the track; a driven wheel assembly 300 located on top of the carrying assembly 100 and disposed opposite to the drive wheel assembly 200, the driven wheel assembly 300 being used to slidably connect the carrying assembly 100 to the track; a brake 800 disposed on the drive wheel assembly 200, the brake 800 locking the drive wheel assembly 200 when the track is de-energized; a backup power supply 400, the backup power supply 400 being used to electrically connect to the brake 800 when the track is de-energized; and a controller 500 electrically connected to the backup power supply 400, the controller 500 being used to control whether the backup power supply 400 supplies power to the brake 800.

[0031] Specifically, during normal operation, the drive wheel assembly 200 draws power from the power supply system on the track through a wave pickup coil to drive the main components such as the traveling motor and the lifting motor. The driven wheel assembly 300 works in conjunction with the drive wheel assembly 200 to ensure that the overhead crane slides smoothly on the track.

[0032] When the track experiences an abnormal power outage, the brake 800 immediately locks the drive wheel assembly 200 to prevent the load assembly 100 from continuing to slide due to inertia, thus avoiding potential collisions or damage. The backup power supply 400 switches to power when the track loses power and is electrically connected to the brake 800. The controller 500 controls the backup power supply 400 to supply power to the brake 800, which unlocks the drive wheel assembly 200. The drive wheel assembly 200 can then continue moving along the track, allowing workers to push or drag the load assembly 100 remotely, further enabling the load assembly 100 to be safely moved to a designated location or to complete necessary operations.

[0033] It should be noted that in this embodiment, the backup power supply 400 can be directly installed on the cargo assembly 100 and electrically connected to the brake 800. The controller 500 can control the opening and closing of the backup power supply 400 and further control the brake 800 to be energized and unlocked, so that the cargo assembly 100 can continue to move under the action of external force.

[0034] The backup power supply 400 can also be an external mobile power source. When the backup power supply 400 is needed as a power source, the backup power supply 400 is electrically connected to the load assembly 100. The preset electrical connection port controller 500 can control the opening and closing of the backup power supply 400 so that the backup power supply 400 supplies power to the brake 800, further energizing and unlocking the brake 800, allowing the load assembly 100 to continue moving under the action of external force.

[0035] Understandably, in the specific implementation process, the configuration of the backup power supply 400 can be flexibly adopted according to the actual situation, as long as it can meet the requirements of supplying power to the brake 800 and the external control device can control the opening and closing of the backup power supply 400.

[0036] This application provides a material handling system in which a backup power supply 400, a controller 500, and a brake 800 work together to enable the load assembly 100 to continue moving along the track when the power is lost. This is achieved by the controller 500 controlling the backup power supply 400 to supply power to the brake 800, thereby unlocking the brake 800. This improves work efficiency, avoids the need for workers to climb to heights, reduces the safety risks associated with working at heights, and enhances operational safety.

[0037] In one embodiment, the backup power supply 400 includes: a power supply battery 410, used to electrically connect the brake 800 when the track is powered off; an inverter (not shown), electrically connected to the power supply battery 410, wherein when the power supply battery 410 is electrically connected to the brake 800, the inverter is connected in series with the brake 800, and the inverter is electrically connected to the drive wheel assembly 200, the inverter being used to convert the DC current and voltage of the power supply battery 410 into the rated voltage and AC current of the drive wheel assembly 200, thereby supplying power to the drive wheel assembly 200; and a controller 500 being used to control whether the power supply battery 410 supplies power to the brake 800, and to control whether the inverter supplies power to the drive wheel assembly 200.

[0038] Specifically, the inverter is electrically connected to the power supply battery 410, and also connected in series with the brake 800. The drive wheel assembly 200 is electrically connected to the power supply battery 410 via the inverter. During operation, when the load assembly 100 is running normally, the drive wheel assembly 200 draws power from the track and drives the load assembly 100 to move. When the track is de-energized, the brake 800 automatically locks the drive wheel assembly 200 to prevent the load assembly 100 from continuing to slide due to inertia. Furthermore, the controller 500 controls the power supply battery 410 to supply power to the brake 800, causing the brake 800 to release from its lock. The controller 500 also controls the power supply battery 410 to supply power to the drive wheel assembly 200 via the inverter. The inverter converts the DC power from the power supply battery 410 into the rated voltage and AC current required by the drive wheel assembly 200, enabling the drive wheel assembly 200 to continue operating even when the track is de-energized, driving the load assembly 100 to continue moving along the track.

[0039] It should be noted that the brake 800 automatically locks when power is off, which is achieved through an electromagnetic mechanism inside the brake 800. When no current flows, the mechanical device of the brake 800 automatically locks the drive wheel assembly 200 to prevent it from rotating, thereby ensuring that the load assembly 100 can stop quickly when power is off, avoiding collisions or damage caused by inertial slippage.

[0040] In one embodiment, please refer to Figure 1 , Figure 4 and Figure 5 In one embodiment, the material handling system further includes: guide wheels, the guide wheels including: a first guide wheel 600, disposed on the drive wheel assembly 200, for controlling the rotation of the drive wheel assembly 200; a second guide wheel 700, disposed on the driven wheel assembly 300, connected in parallel with the first guide wheel 600, for controlling the rotation of the driven wheel assembly 300; when the track is de-energized, the power supply battery 410 is electrically connected to the first guide wheel 600 and the second guide wheel 700, the power supply battery 410 is used to supply power to the two parallel ends of the first guide wheel 600 and the second guide wheel 700; the controller 500 is used to control the direction of the current supplied by the power supply battery 410 to the two parallel ends of the first guide wheel 600 and the second guide wheel 700, and further control the rotation direction of the first guide wheel and the second guide wheel.

[0041] Specifically, the first guide wheel 600 is mounted on the drive wheel assembly 200 to control the steering of the drive wheel assembly 200. The second guide wheel 700 is mounted on the driven wheel assembly 300 and connected in parallel with the first guide wheel 600 to control the steering of the driven wheel assembly 300. When the track is powered off, both the first guide wheel 600 and the second guide wheel 700 are electrically connected to the power supply battery 410, and they are connected in parallel. It should be noted that the motors of the first guide wheel 600 and the second guide wheel 700 have opposite polarities in the circuit connected to the power supply battery 410; that is, the positive terminal of the motor of the first guide wheel 600 is connected in parallel with the negative terminal of the motor of the second guide wheel 700 on one side, and the negative terminal of the motor of the first guide wheel 600 is connected in parallel with the positive terminal of the motor of the second guide wheel 700 on the other side. This parallel connection ensures that the first guide wheel 600 and the second guide wheel 700 can simultaneously obtain the same power supply, achieving synchronous opposite steering control, thereby realizing the left and right steering of the load assembly 100.

[0042] Furthermore, when the controller 500 controls the negative terminal of the power supply 410 to be connected to the side where the first guide wheel 600 and the second guide wheel 700 are connected in parallel, and when the controller 500 controls the positive terminal of the power supply 410 to be connected to the other side where the first guide wheel 600 and the second guide wheel 700 are connected in parallel, the current direction causes the first guide wheel 600 to rotate clockwise and the second guide wheel 700 to rotate counterclockwise. The reverse is also true, and will not be elaborated further.

[0043] In one embodiment, the backup power supply 400 is disposed in the load-carrying assembly 100, which also includes a signal receiver (not shown in the figure), which is electrically connected to the power supply battery 410 and the inverter respectively; the controller 500 includes a control panel 530 and a signal transmitter (not shown in the figure) disposed in the control panel 530, which is electrically connected to the control panel 530; when the track is de-energized, the control panel 530 controls the signal transmitter to send a first power supply signal to the signal receiver, and the signal receiver responds to the first power supply signal by controlling the power supply battery 410 to supply power to the brake 800; and the control panel 530 controls the signal transmitter to send a second power supply signal to the signal receiver, and the signal receiver responds to the second power supply signal by controlling the inverter to supply power to the drive wheel assembly 200; and the control panel 530 controls the signal transmitter to send a third power supply signal to the signal receiver, and the signal receiver responds to the third power supply signal by controlling the power supply battery 410 to supply power to the two parallel ends of the first guide wheel 600 and the second guide wheel 700.

[0044] Understandably, the controller 800 and the cargo assembly 100 are wirelessly connected via a signal transmitter and a signal receiver, enabling operators to remotely operate the controller, transmit different signals, and further control the power supply status of the power supply 410 without having to climb to a height.

[0045] Please refer to Figure 2 In one embodiment, the loading assembly 100 is provided with a mounting plate 120 located on the side of the loading assembly 100. The mounting plate 120 has a plurality of through holes 121, and the power supply battery 410 is connected to the mounting plate 120 by fasteners.

[0046] Specifically, the mounting plate 120 is mounted on the carrying assembly 100 and is used to fix the power supply battery 410. The mounting plate 120 has multiple through holes 121 for installing fasteners (such as bolts, screws, etc.). The fasteners securely fix the power supply battery 410 to the mounting plate 120 through the through holes 121, ensuring that the power supply battery 410 will not shift or loosen during the operation of the carrying assembly 100. The multiple through holes 121 on the mounting plate 120 provide various installation position options, allowing the power supply battery 410 to be flexibly adjusted according to actual needs.

[0047] It should be noted that the power supply battery 410 can also be used as follows: Figure 1 The backup power supply 400 is located on the cargo carrier 100. Understandably, depending on actual needs, the power supply battery 410 can be flexibly located on the mounting plate 120 or directly on the cargo carrier 100.

[0048] In one embodiment, the load assembly 100 is further provided with a terminal block 110, which connects to the drive wheel assembly 200 and / or the brake 800 and / or the guide wheel.

[0049] Understandably, the terminal block 110, as a centralized electrical interface, can simultaneously control the power supply to key components such as the brake 800 and the drive wheel assembly 200. The terminal block 110 can be used to electrically connect the power supply battery 410 and the controller 500, which controls the power supply from the power supply battery 410 to the drive wheel assembly 200 and / or the brake 800 and / or the guide wheels. Workers can remotely control the power status of the power supply battery 410 via the controller 500 without having to work at height, thereby achieving remote control of the load-bearing assembly 100.

[0050] In one embodiment, the controller 500 includes interconnected terminals 510, connecting wires 520, and a control panel 530; the terminals 510 are connected to the terminal block 110; the control panel 530 is provided with a main switch 531 and a drive switch 533, the main switch 531 is used to control the opening and closing of the power supply battery 410, and the drive switch 533 is used to control the opening and closing of the drive wheel assembly 200 and / or the brake 800 and / or the guide wheel.

[0051] Specifically, terminal 510 connects to terminal block 110 to electrically connect controller 500 to other electrical components of the load assembly 100 (such as power supply battery 410, drive wheel set 200, brake 800, etc.). Connecting cable 520 connects terminal 510 and control panel 530 to ensure signal and power transmission. Control panel 530 provides a user interface and includes a main switch 531 and a drive switch 533.

[0052] Furthermore, the main switch 531 is used to control the power state of the power supply battery 410. When the main switch 531 is closed, the power supply to the power supply battery 410 is cut off, and all components connected to the power supply battery 410 (such as the brake 800, inverter, drive wheel set 200, etc.) will lose power; when the main switch 531 is open, the power supply to the power supply battery 410 is connected, providing power to other components. The drive switch 533 is used to control the power state of the drive wheel set 200 and / or the brake 800 and / or the guide wheel. When the drive switch 533 is closed, the drive wheel assembly 200 loses the power supply from the inverter and stops operating, and / or the brake 800 loses the power supply from the battery 410 and locks, and / or the guide wheel loses the power supply from the battery 410 and loses its steering ability; when the drive switch 533 is open, the drive wheel assembly 200 receives the power supply from the inverter and starts operating, and / or the brake 800 receives the power supply from the battery 410 and unlocks, and / or the guide wheel receives the power supply from the battery 410 and can steer.

[0053] Understandably, through the main switch 531, operators can disconnect or connect the power supply to the battery 410 when needed, thereby achieving power management for the entire system. Through the drive switch 533, operators can independently control the start and stop of the drive wheel assembly 200 and / or the brake 800 and / or the guide wheel when the main switch 531 is on. This independent control method makes operation more flexible; operators can start or stop the drive wheel assembly 200 and / or the brake 800 and / or the guide wheel at any time according to actual needs, without affecting the power status of other components.

[0054] Please refer to Figure 1 , Figure 4 and Figure 5The control panel 530 further includes a first guide switch 535 and a second guide switch 537. The first guide switch 535 controls one side of the first guide wheel 600 and the second guide wheel 700 connected in parallel to the positive or negative terminal of the power supply battery 410. The second guide switch 537 controls the other side of the first guide wheel 600 and the second guide wheel 700 connected in parallel to the positive or negative terminal of the power supply battery 410. When the first guide wheel 600 needs to rotate clockwise and the second guide wheel 700 needs to rotate counterclockwise, the first guide switch 535 controls the first guide wheel 600 and the second guide wheel 700 to rotate counterclockwise. One side of the first guide wheel 600 and the second guide wheel 700 connected in parallel is connected to the negative terminal of the power supply battery 410. The second guide switch 537 is used to control the other side of the first guide wheel 600 and the second guide wheel 700 connected in parallel to the positive terminal of the power supply battery 410. When the first guide wheel 600 needs to rotate counterclockwise and the second guide wheel 700 needs to rotate clockwise, the first guide switch 535 is used to control the one side of the first guide wheel 600 and the second guide wheel 700 connected in parallel to the positive terminal of the power supply battery 410, and the second guide switch 537 is used to control the other side of the first guide wheel 600 and the second guide wheel 700 connected in parallel to the negative terminal of the power supply battery 410.

[0055] Specifically, the power polarity of the first guide wheel 600 and the second guide wheel 700 can be changed via the first guide switch 535 and the second guide switch 537. The switching of the power polarity directly affects the rotation direction of the guide wheels.

[0056] The first guide wheel 600 rotates clockwise and the second guide wheel 700 rotates counterclockwise: When the first guide switch 535 connects the parallel connection of the first guide wheel 600 and the second guide wheel 700 to the negative terminal of the power supply battery 410, and the second guide switch 537 connects the parallel connection of the first guide wheel 600 and the second guide wheel 700 to the positive terminal of the power supply battery 410, the current direction causes the first guide wheel 600 to rotate clockwise and the second guide wheel 700 to rotate counterclockwise.

[0057] The first guide wheel 600 rotates counterclockwise and the second guide wheel 700 rotates clockwise: When the first guide switch 535 connects the side of the first guide wheel 600 and the second guide wheel 700 connected in parallel to the positive terminal of the power supply battery 410, and the second guide switch 537 connects the other side of the first guide wheel 600 and the second guide wheel 700 connected in parallel to the negative terminal of the power supply battery 410, the current direction causes the first guide wheel 600 to rotate counterclockwise and the second guide wheel 700 to rotate clockwise.

[0058] Understandably, by controlling the first guide switch 535 and the second guide switch 537 to switch the power polarity, the clockwise and counterclockwise rotation of the first guide wheel 600, as well as the clockwise and counterclockwise rotation of the second guide wheel 700, can be achieved. This control method enables the cargo-carrying assembly 100 to flexibly turn in complex track layouts, especially in scenarios requiring precise turning, such as at merging and diverging points.

[0059] In one embodiment, the control panel 530 is further provided with a first indicator light 532, which is located near the main switch 531. The first indicator light 532 is connected in series with the brake 800, and the first indicator light 532 and the brake 800 are connected in parallel with the inverter. The control panel 530 is also provided with a second indicator light 534, which is located near the drive switch 533 and is connected in series with the drive wheel assembly 200. The control panel 530 is also provided with a third indicator light 536, which is located near the first guide switch. In configuration 535, the third indicator light 536 is connected in series with the first guide wheel 600 and the second guide wheel 700. When the first guide wheel 600 rotates clockwise and the second guide wheel 700 rotates counterclockwise, the third indicator light 536 illuminates. The control panel 530 is also provided with a fourth indicator light 538, which is located near the second guide switch 537. The fourth indicator light 538 is connected in series with the first guide wheel 600 and the second guide wheel 700. When the first guide wheel 600 rotates counterclockwise and the second guide wheel 700 rotates clockwise, the fourth indicator light 538 illuminates.

[0060] Specifically, the first indicator light 532 is positioned near the main switch 531 for easy observation by staff. The first indicator light 532 is connected in series with the brake 800 and in parallel with the inverter. When the brake 800 is energized, the first indicator light 532 illuminates, indicating that the brake 800 is in the unlocked state; when the brake 800 is de-energized, the first indicator light 532 goes out, indicating that the brake 800 is in the locked state. Understandably, the first indicator light 532 and the brake 800 are connected in parallel with the inverter to ensure that the brake 800 and the indicator light receive a stable power supply when the inverter is operating normally.

[0061] Furthermore, the second indicator light 534 is positioned close to the drive switch 533 for easy observation by staff. The second indicator light 534 is connected in series with the drive wheel assembly 200. When the drive wheel assembly 200 is powered on, the second indicator light 534 illuminates, indicating that the drive wheel assembly 200 is running; when the drive wheel assembly 200 is powered off, the second indicator light 534 goes out, indicating that the drive wheel assembly 200 has stopped running.

[0062] Furthermore, the third indicator light 536 is positioned near the first guide switch 535 for easy observation by the operator. The third indicator light 536 is connected in series with the first guide wheel 600 and the second guide wheel 700. When the first guide wheel 600 rotates clockwise and the second guide wheel 700 rotates counterclockwise, the third indicator light 536 illuminates; when the first guide wheel 600 stops rotating counterclockwise, and the second guide wheel 700 stops rotating clockwise, the third indicator light 536 turns off. The fourth indicator light 538 is positioned near the second guide switch 537 for easy observation by the operator. The fourth indicator light 538 is connected in series with the first guide wheel 600 and the second guide wheel 700. When the first guide wheel 600 rotates counterclockwise and the second guide wheel 700 rotates clockwise, the fourth indicator light 538 illuminates; when the first guide wheel 600 stops rotating clockwise, and the second guide wheel 700 stops rotating counterclockwise, the fourth indicator light 538 turns off.

[0063] Understandably, when the first guide switch 535 connects one side of the parallel connection between the first guide wheel 600 and the second guide wheel 700 to the negative terminal of the power supply battery 410, and the second guide switch 537 connects the other side of the parallel connection between the first guide wheel 600 and the second guide wheel 700 to the positive terminal of the power supply battery 410, the current direction causes the first guide wheel 600 to rotate clockwise and the second guide wheel 700 to rotate counterclockwise. At this time, the third indicator light 536 illuminates, and the fourth indicator light 538 is extinguished due to a circuit break. When the first guide switch 535 connects one side of the parallel connection between the first guide wheel 600 and the second guide wheel 700 to the positive terminal of the power supply battery 410, and the second guide switch 537 connects the other side of the parallel connection between the first guide wheel 600 and the second guide wheel 700 to the negative terminal of the power supply battery 410, the current direction causes the first guide wheel 600 to rotate counterclockwise and the second guide wheel 700 to rotate clockwise. At this time, the fourth indicator light 538 illuminates, and the third indicator light 536 is extinguished due to a circuit break.

[0064] With the above-described configuration, the first indicator light 532 clearly displays the status of the brake 800 by turning it on or off, allowing operators to quickly determine whether the brake 800 has been released and ensuring safe movement of the equipment. The second indicator light 534 clearly displays the operating status of the drive wheel assembly 200 by turning it on or off, allowing operators to quickly determine whether the drive wheel assembly 200 is in operation. The status of the third indicator light 536 and the fourth indicator light 538 allows operators to clearly determine the rotation direction of the first guide wheel 600 and the second guide wheel 700. This intuitive indication method reduces operator guesswork regarding equipment status and improves operational safety and reliability.

[0065] In one embodiment, the terminal block 110 is provided with a first limiting member (not shown in the figure), and the terminal 510 is provided with a second limiting member (not shown in the figure). The terminal 510 and the terminal block 110 are connected by the first limiting member and the second limiting member.

[0066] Understandably, the first and second limiting components can be snap-fit ​​components, fasteners, magnetic components, etc., and can be flexibly set according to actual needs, as long as the first and second limiting components are aligned and connected.

[0067] In the embodiments of this application, the first and second limiting members are preferably magnetic, specifically, the wire end and the terminal block 110 are connected by the magnetic attraction of the first and second limiting members. When the wire end 510 approaches the terminal block 110, the magnetic attraction automatically guides the wire end 510 to align and be attracted into place, completing the electrical connection. Applying external force to pull the wire end 510 away from the terminal block 110 disconnects the connection. The magnetic attraction not only attracts the first and second limiting members to each other, but also automatically guides the wire end 510 to align with the terminal block 110 to a certain extent, reducing the difficulty of manual alignment. This automatic alignment function improves the efficiency and accuracy of the connection. Through the magnetic attraction, the connection between the wire end 510 and the terminal block 110 is more stable, reducing loosening caused by vibration or external force. This stability is crucial for maintaining the reliability of the electrical connection of the load assembly 100 during operation.

[0068] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A material handling system, characterized in that, include: Carrying components, used to carry materials; A drive wheel assembly is disposed at one end of the top of the load assembly. The drive wheel assembly is used to slide the load assembly to the track and draw power from the track to drive the load assembly to move along the track. The driven wheel set is located on top of the load assembly and is disposed opposite to the drive wheel set. The driven wheel set is used to slide the load assembly onto the track. A brake is mounted on the drive wheel assembly, which locks the drive wheel assembly when the track is de-energized; A backup power supply is provided to electrically connect the brake when the track is de-energized. A controller is electrically connected to the backup power supply, and the controller is used to control whether the backup power supply supplies power to the brake.

2. The material handling system according to claim 1, characterized in that, The backup power supply includes: A power supply battery is provided to electrically connect the brake when the track is de-energized; An inverter is electrically connected to the power supply battery. When the power supply battery is electrically connected to the brake, the inverter is connected in series with the brake. The inverter is also electrically connected to the drive wheel assembly. The inverter is used to convert the DC current and voltage of the power supply battery into the rated voltage and AC current of the drive wheel assembly to power the drive wheel assembly. The controller is used to control whether the power supply battery supplies power to the brake and whether the inverter supplies power to the drive wheel assembly.

3. The material handling system according to claim 2, characterized in that, Also includes: Guide wheel, the guide wheel comprising: The first guide wheel is mounted on the drive wheel assembly and is used to control the direction of the drive wheel assembly; The second guide wheel is mounted on the driven wheel assembly and connected in parallel with the first guide wheel, and is used to control the direction of the driven wheel assembly; When the track is de-energized, the power supply battery is electrically connected to the first guide wheel and the second guide wheel, and the power supply battery is used to supply power to the two parallel ends of the first guide wheel and the second guide wheel; The controller is used to control the direction of the current supplied by the power supply battery to the two parallel ends of the first guide wheel and the second guide wheel, and further control the rotation direction of the first guide wheel and the second guide wheel.

4. The material handling system according to claim 3, characterized in that, The backup power supply is provided in the cargo carrier assembly, which also includes a signal receiver, which is electrically connected to the power supply battery and the inverter respectively. The controller includes a control panel and a signal transmitter disposed within the control panel, the signal transmitter being electrically connected to the control panel; When the track is de-energized, the control panel controls the signal transmitter to send a first power supply signal to the signal receiver, and the signal receiver responds to the first power supply signal by controlling the power supply battery to supply power to the brake. as well as The control panel controls the signal transmitter to send a second power supply signal to the signal receiver, and the signal receiver responds to the second power supply signal to control the inverter to supply power to the drive wheel assembly; as well as The control panel controls the signal transmitter to send a third power supply signal to the signal receiver, and the signal receiver responds to the third power supply signal by controlling the power supply battery to supply power to the two parallel ends of the first guide wheel and the second guide wheel.

5. The material handling system according to claim 4, characterized in that, The cargo carrier is also provided with a mounting plate located on the side of the cargo carrier. The mounting plate has multiple through holes, and the backup power supply is connected to the mounting plate by fasteners.

6. The material handling system according to claim 3, characterized in that, The load-carrying assembly is also provided with a terminal block, which connects to the drive wheel assembly and / or the brake and / or the guide wheel.

7. The material handling system according to claim 6, characterized in that, The controller includes interconnected terminals, connecting cables, and a control panel; The terminal is connected to the terminal block; The control panel is equipped with a main switch and a drive switch. The main switch is used to control the opening and closing of the power supply battery, and the drive switch is used to control the opening and closing of the drive wheel assembly and / or the brake and / or the guide wheel.

8. The material handling system according to claim 7, characterized in that, The control panel also includes a first guide switch and a second guide switch. The first guide switch is used to control one side of the first guide wheel and the second guide wheel connected in parallel to the positive or negative terminal of the power supply battery. The second guide switch is used to control the other side of the first guide wheel and the second guide wheel connected in parallel to the positive or negative terminal of the power supply battery. When the first guide wheel needs to rotate clockwise and the second guide wheel needs to rotate counterclockwise, the first guide switch is used to control one side of the first guide wheel and the second guide wheel connected in parallel to the negative terminal of the power supply battery, and the second guide switch is used to control the other side of the first guide wheel and the second guide wheel connected in parallel to the positive terminal of the power supply battery; When the first guide wheel needs to rotate counterclockwise and the second guide wheel needs to rotate clockwise, the first guide switch is used to control one side of the first guide wheel and the second guide wheel connected in parallel to the positive terminal of the power supply battery, and the second guide switch is used to control the other side of the first guide wheel and the second guide wheel connected in parallel to the negative terminal of the power supply battery.

9. The material handling system according to claim 8, characterized in that, The control panel is also provided with a first indicator light, which is located near the main switch. The first indicator light is connected in series with the brake, and the first indicator light and the brake are connected in parallel with the inverter. The control panel is also provided with a second indicator light, which is located near the drive switch and is connected in series with the drive wheel assembly; The control panel is also equipped with a third indicator light, which is located near the first guide switch. The third indicator light is connected in series with the first guide wheel and the second guide wheel. When the first guide wheel rotates clockwise and the second guide wheel rotates counterclockwise, the third indicator light is lit. The control panel is also equipped with a fourth indicator light, which is located near the second guide switch. The fourth indicator light is connected in series with the first guide wheel and the second guide wheel. When the first guide wheel rotates counterclockwise and the second guide wheel rotates clockwise, the fourth indicator light is lit.

10. The material handling system according to claim 7, characterized in that, The terminal block is provided with a first limiting member, and the terminal is provided with a second limiting member. The terminal and the terminal block are mutually limited and connected by the first limiting member and the second limiting member.

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