A lifting beam control system

Abstract

The present application discloses a lifting beam control system, including a lifting beam controller, a remote controller, a lifting control solenoid valve group, a center of gravity adjustment solenoid valve group, and an inclination sensor connected to the lifting beam controller. The remote controller is connected to the lifting beam controller. The lifting beam controller is also connected to the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group. The other end of the center of gravity adjustment solenoid valve group is connected to a center of gravity adjustment device. The inclination sensor is used to transmit the monitored inclination of the cross beam when the lifting beam is running along the track under the traction of a monorail crane locomotive to the lifting beam controller. The lifting beam controller is used to obtain a center of gravity adjustment strategy and transmit it to the center of gravity adjustment solenoid valve group. The center of gravity adjustment solenoid valve group is used to adjust the center of gravity of the lifting beam. The above-mentioned lifting beam control system can effectively ensure the safety of the lifting beam operator, and can also automatically adjust the center of gravity, reduce the width of the lane required when the lifting beam passes through a curve, and improve the curve passing performance of the lifting beam.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic control equipment, and in particular relates to a lifting beam control system. Background Art

[0002] With the development of complex and high-risk underground auxiliary transportation equipment technology, monorail crane locomotive auxiliary transportation systems are increasingly being used in coal mines. Among them, the lifting beam is the core component of the monorail crane locomotive to realize the lifting, lifting and carrying and transportation functions of the materials to be transported. It has the advantages of flexible transportation, strong safety and high efficiency. In complex tunnels with multiple ups and downs, large inclinations, long distances, multiple branches and low cross-sectional heights, when using traditional lifting beams to transport large coal mine equipment such as integral hydraulic supports, the traditional lifting beam control device is a manual close-range operation such as moving the hydraulic valve handle or pulling the hydraulic valve control wire, which causes the lifting beam operator to be in close contact with the materials to be transported or large coal mine equipment, which is prone to safety accidents and makes it impossible to effectively protect the life safety of the lifting beam operator.

[0003] In addition, when a large lifting beam passes through a horizontal curve with a heavy load, due to its own structure, the center of gravity of the lifting beam deviates from the track for a distance, which may cause the track to be damaged prematurely due to the large twisting force. In addition, it has high requirements on the cross-sectional width of the tunnel at the horizontal curve. In order to ensure the normal passage of the lifting beam, a large amount of tunnel expansion work is required, which not only affects the production efficiency of the mining enterprise, but also increases the working hours and auxiliary transportation costs of the tunnel expansion of the mining enterprise. Therefore, the traditional lifting beam seriously restricts the use of lifting beams in complex and high-risk underground mines with small tunnel cross-sectional dimensions. Now a problem that needs to be solved urgently is how to optimize the lifting beam, realize remote lifting operation and automatic adjustment of the center of gravity, and improve the safety of operations. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a lifting beam control system, which can avoid close contact between the lifting beam operator and the materials to be transported and large coal mining equipment, effectively ensure the safety of the lifting beam operator, and can also automatically adjust the center of gravity to reduce the width of the tunnel required when the lifting beam passes through a curve, improve the curve passing performance of the lifting beam, and at the same time reduce the impact of the lifting beam on the track when the lifting beam passes a horizontal curve with a heavy load, thereby avoiding premature damage to the track due to large twisting force.

[0005] A lifting beam control system provided by the present invention comprises a lifting beam controller, a remote controller, a lifting control solenoid valve group, a center of gravity adjustment solenoid valve group, and an inclination sensor installed on a cross beam and communicatively connected to the lifting beam controller, wherein the remote controller is communicatively connected to the lifting beam controller, and the lifting beam controller is also communicatively connected to the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group, the other end of the lifting control solenoid valve group is connected to a lifting device, and the other end of the center of gravity adjustment solenoid valve group is connected to a center of gravity adjustment device, and the remote controller is used to receive key commands and send the key commands to the lifting beam controller, The lifting beam controller is used to send lifting instructions to the lifting control solenoid valve group based on the lifting control instructions in the button instructions, and the lifting control solenoid valve group is used to control the lifting device to lift and lower, and the inclination sensor is used to transmit the monitored inclination of the cross beam when the lifting beam is running along the track under the traction of the monorail crane locomotive to the lifting beam controller, and the lifting beam controller is used to calculate the center of gravity adjustment strategy based on the inclination and transmit it to the center of gravity adjustment solenoid valve group, and the center of gravity adjustment solenoid valve group is used to control the center of gravity adjustment device to adjust the center of gravity of the lifting beam based on the center of gravity adjustment strategy.

[0006] Preferably, the above-mentioned lifting beam control system also includes a pressure sensor installed on the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group. The pressure sensor is communicatively connected to the lifting beam controller and is used to monitor the oil supply pipeline pressure of the lifting beam and transmit it to the lifting beam controller. The lifting beam controller is used to stop or continue the oil supply based on the pipeline pressure.

[0007] Preferably, the above-mentioned lifting beam control system also includes a distance measuring sensor installed on the lifting beam body, which is used to monitor the distance between the lifting beam body and the cross beam or the upper surface of the material to be transported when the lifting beam lifts the material to be transported, and transmit the distance data to the lifting beam controller. The lifting beam controller is used to stop lifting the material to be transported when the distance is less than a preset distance threshold.

[0008] Preferably, the above-mentioned lifting beam control system also includes a positioning sensor for monitoring the position of the lifting beam running along the track under the traction of the monorail crane locomotive, and transmitting the position data to the lifting beam controller, and the lifting beam controller is used to control the lifting beam to stop running along the track when reaching a preset location.

[0009] Preferably, the above-mentioned lifting beam control system also includes a weighing sensor that is communicatively connected to the lifting beam controller, one end of the weighing sensor is matched with a key seat with a concave spherical surface through its convex spherical surface to form a spherical pair, and is connected to the lifting beam body, and the other end is connected to the lifting circular chain through a pin shaft, so as to transmit weight data to the lifting beam controller.

[0010] Preferably, in the above-mentioned lifting beam control system, the lifting device is a lifting hydraulic hoist, a lifting hydraulic motor or a lifting hydraulic cylinder.

[0011] Preferably, in the above-mentioned lifting beam control system, the center of gravity adjustment device is a center of gravity adjustment hydraulic cylinder, a center of gravity adjustment ball screw or a center of gravity adjustment gear rack.

[0012] Preferably, in the above-mentioned lifting beam control system, the remote control and the lifting beam controller are connected by radio frequency wireless communication or wired connection.

[0013] It can be known from the above description that the above-mentioned lifting beam control system provided by the present invention includes a lifting beam controller, a remote controller, a lifting control solenoid valve group, a center of gravity adjustment solenoid valve group, and an inclination sensor installed on the cross beam and communicatively connected to the lifting beam controller, wherein the remote controller is communicatively connected to the lifting beam controller, and the lifting beam controller is also communicatively connected to the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group, the other end of the lifting control solenoid valve group is connected to a lifting device, and the other end of the center of gravity adjustment solenoid valve group is connected to a center of gravity adjustment device, the remote controller is used to receive key commands and send the key commands to the lifting beam controller, the lifting beam controller is used to send lifting commands to the lifting control solenoid valve group based on the lifting control commands in the key commands, and the lifting control solenoid valve group is used to control the lifting device to perform Lifting and lowering, the inclination sensor is used to transmit the monitored inclination of the cross beam when the lifting beam is running along the track under the traction of the monorail crane locomotive to the lifting beam controller, the lifting beam controller is used to calculate the center of gravity adjustment strategy based on the inclination and transmit it to the center of gravity adjustment solenoid valve group, the center of gravity adjustment solenoid valve group is used to control the center of gravity adjustment device to adjust the center of gravity of the lifting beam based on the center of gravity adjustment strategy, so that the lifting and lowering can be operated by a remote control to avoid close contact between the lifting beam operator and the materials to be transported and large coal mining equipment, effectively ensuring the safety of the lifting beam operator, and can also automatically adjust the center of gravity to reduce the width of the lane required for the lifting beam to pass through a curve, improve the bending passing performance of the lifting beam, and at the same time reduce the impact of the lifting beam on the track when the lifting beam passes a horizontal curve with a heavy load, avoiding premature damage to the track due to large twisting force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0015] Figure 1 A schematic diagram of an embodiment of a lifting beam control system provided by the present invention. DETAILED DESCRIPTION

[0016] The core of the present invention is to provide a lifting beam control system, which can avoid close contact between the lifting beam operator and the materials to be transported and large coal mining equipment, effectively ensure the safety of the lifting beam operator, and can also automatically adjust the center of gravity to reduce the width of the lane required when the lifting beam passes through a curve, improve the curve passing performance of the lifting beam, and at the same time reduce the impact of the lifting beam on the track when the lifting beam passes a horizontal curve with a heavy load, thereby avoiding premature damage to the track due to large twisting forces.

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] An implementation example of a lifting beam control system provided by the present invention is as follows: Figure 1 As shown, Figure 1 The present invention provides a schematic diagram of an embodiment of a lifting beam control system, which may include a lifting beam controller 2, a remote controller 1, a lifting control solenoid valve group 9, a center of gravity adjustment solenoid valve group 11, and an inclination sensor 6 installed on a cross beam and connected to the lifting beam controller 2, wherein the remote controller 1 is connected to the lifting beam controller 2, the lifting beam controller 2 is also connected to the lifting control solenoid valve group 9 and the center of gravity adjustment solenoid valve group 11, the other end of the lifting control solenoid valve group 9 is connected to a lifting device 10, the other end of the center of gravity adjustment solenoid valve group 11 is connected to a center of gravity adjustment device 12, and the remote controller 1 is used to receive key commands and send key commands to The lifting beam controller 2 is used to send lifting and lowering instructions to the lifting and lowering control solenoid valve group 9 based on the lifting and lowering control instructions in the key instructions. The lifting and lowering control solenoid valve group 9 is used to control the lifting device 10 to lift and lower. The inclination sensor 6 is used to transmit the monitored inclination of the cross beam when the lifting beam is running along the track under the traction of the monorail crane locomotive 8 to the lifting beam controller 2. The lifting beam controller 2 is used to calculate the center of gravity adjustment strategy based on the inclination and transmit it to the center of gravity adjustment solenoid valve group 11. The center of gravity adjustment solenoid valve group 11 is used to control the center of gravity adjustment device 12 to adjust the center of gravity of the lifting beam based on the center of gravity adjustment strategy, which can improve the cornering performance of the lifting beam.

[0019] It should be noted that the above-mentioned remote control 1 and the lifting beam controller 2 can preferably utilize radio frequency wireless communication connection or wired connection, so that remote control can be achieved without the operator approaching the lifting beam, thereby ensuring personal safety. This remote control can adopt an intrinsically safe design, based on the microcontroller to detect the button status in real time, and send instructions to the lifting beam controller through the radio frequency module. The lifting beam controller controls the lifting of the lifting beam to realize remote control operation of the lifting beam. The controller preferably uses digital coding method, which has higher reliability, and can communicate with the controller in real time to achieve communication handshake, control and data mutual verification, and further improve communication reliability.

[0020] The above two sets of solenoid valve groups can adopt two control modes, manual and remote control, and are respectively installed on the front and rear pull rods of the lifting beam. The P port of the lifting control solenoid valve group is connected to the lifting oil supply port of the monorail crane through a hydraulic oil pipe, and the T port is connected to the monorail crane hydraulic oil tank through a hydraulic oil pipe. The oil ports A1, B1, A2, B2, A3, B3, A4, B4 and other oil ports of the solenoid valve group are respectively connected to the oil inlet and return ports of the lifting device; the P port of the center of gravity adjustment solenoid valve group is connected to the oil supply port of the auxiliary control circuit of the monorail crane through a hydraulic oil pipe, and the T port is connected to the monorail crane hydraulic oil tank through a hydraulic oil pipe. The oil ports a1, b1, a2, b2 and other oil ports are respectively connected to the oil inlet and return ports of the center of gravity adjustment hydraulic cylinder. The above solenoid valve can preferably use a load-sensitive valve to control the movement direction and speed of the lifting beam, so as to realize the control of the flow of the actuator independently of the load. It can make multiple actuators work simultaneously and independently at different speeds and pressures until the maximum flow of the pump source is reached, thereby improving the control accuracy and switching stability of the lifting beam.

[0021] Moreover, the above-mentioned lifting beam controller can interact with the monorail crane or dispatching platform to realize the functions of lifting beam marshaling, intelligent unloading, active obstacle avoidance, etc., so as to reduce the number of auxiliary transportation personnel in coal mines and effectively protect the lives of employees in mining enterprises. Moreover, after adopting the automatic adjustment function of the center of gravity of the lifting beam, it is possible to reduce the width of the lane required for the lifting beam to pass through the curve, improve the performance of the lifting beam in passing through the curve, and reduce the impact of the lifting beam on the track when the lifting beam passes through the horizontal curve with heavy load, weakening the occurrence of heavy-loaded lifting beam torsion.

[0022] It can be known from the above description that in the embodiment of the above-mentioned lifting beam control system provided by the present invention, since it includes a lifting beam controller, a remote controller, a lifting control solenoid valve group, a center of gravity adjustment solenoid valve group, and an inclination sensor installed on the cross beam and communicatively connected to the lifting beam controller, wherein the remote controller is communicatively connected to the lifting beam controller, and the lifting beam controller is also communicatively connected to the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group, the other end of the lifting control solenoid valve group is connected to a lifting device, and the other end of the center of gravity adjustment solenoid valve group is connected to a center of gravity adjustment device, the remote controller is used to receive key commands and send the key commands to the lifting beam controller, the lifting beam controller is used to send lifting commands to the lifting control solenoid valve group based on the lifting control commands in the key commands, the lifting control solenoid valve group is used to control the lifting device to lift and lower, and the inclination sensor is used to control the lifting device to lift and lower. The angle sensor is used to transmit the monitored inclination of the cross beam when the lifting beam is running along the track under the traction of the monorail crane locomotive to the lifting beam controller. The lifting beam controller is used to calculate the center of gravity adjustment strategy based on the inclination and transmit it to the center of gravity adjustment solenoid valve group. The center of gravity adjustment solenoid valve group is used to control the center of gravity adjustment device to adjust the center of gravity of the lifting beam based on the center of gravity adjustment strategy. Therefore, the lifting and lowering can be operated by a remote control to avoid close contact between the lifting beam operator and the materials to be transported and large coal mining equipment, effectively ensuring the safety of the lifting beam operator. It can also automatically adjust the center of gravity to reduce the width of the laneway required for the lifting beam to pass through a curve, improve the bending performance of the lifting beam, and at the same time reduce the impact of the lifting beam on the track when the lifting beam passes a horizontal curve with a heavy load, avoiding premature damage to the track due to large twisting force.

[0023] In a specific embodiment of the above-mentioned lifting beam control system, continue to refer to Figure 1 , and can also include a pressure sensor 3 installed on the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group. The pressure sensor 3 is connected to the lifting beam controller 2 for monitoring the oil supply pipeline pressure of the lifting beam and transmitting it to the lifting beam controller 2. The lifting beam controller 2 is used to stop or continue the oil supply based on the pipeline pressure. Specifically, through controller calculation and intelligent adjustment control, using this pressure sensor 3, it is possible to achieve functions such as lifting beam overload protection and lifting oil supply explosion-proof pipe protection. Specifically, based on the detection value of the pressure sensor, its normal working allowable pressure range is 0-16MPa. If the pressure sensor detection value is greater than the upper limit of the allowable pressure (16MPa), it is determined that the lifting beam is overloaded, and overload protection and overload warning are performed; if the pressure sensor detection value is greater than 1.25 times the upper limit of the allowable pressure (20MPa), it is determined that the lifting beam has a risk of bursting pipes, and a bursting pipe warning is performed.

[0024] In another specific embodiment of the above-mentioned lifting beam control system, continue to refer to Figure 1It can also include a distance measuring sensor 5 installed on the lifting beam body, which is used to monitor the distance between the lifting beam body and the cross beam or the upper surface of the material to be transported when the lifting beam lifts the material to be transported, and transmit the distance data to the lifting beam controller 2. The lifting beam controller 2 is used to stop lifting the material to be transported when the distance is less than a preset distance threshold. It can be seen that the use of this distance measuring sensor 5 can realize the function of automatically stopping the lifting when the lifting height of the lifting beam is in place.

[0025] In another specific embodiment of the above-mentioned lifting beam control system, continue to refer to Figure 1 , and can also include a positioning sensor 7, which is used to monitor the position of the lifting beam running along the track under the traction of the monorail crane locomotive, and transmit the position data to the lifting beam controller 2, and the lifting beam controller 2 is used to control the stop of running along the track when it reaches the preset location. Specifically, when the lifting beam runs to the location set by the program control, the lifting beam controller and the monorail crane locomotive exchange information to realize the parking brake of the monorail crane locomotive and automatically switch to the lifting mode and the intelligent unloading function of the lifting beam, so that the degree of automation is higher and more intelligent. The positioning sensor 7 can specifically be based on the precise positioning of the beacon, and can accurately, timely and reliably obtain the position information of the monorail crane locomotive and the lifting beam.

[0026] In a preferred embodiment of the above-mentioned lifting beam control system, continue to refer to Figure 1 , and can also include a weighing sensor 4 that is communicatively connected to the lifting beam controller 2. One end of the weighing sensor 4 matches the key seat with a concave spherical surface through its convex spherical surface to form a spherical pair, and is connected to the lifting beam body. The other end is connected to the lifting ring chain through a pin shaft, and is used to transmit weight data to the lifting beam controller 2. Specifically, the effective lifting force of the lifting beam is transmitted to the weighing sensor 4 through the lifting ring chain, and the weighing sensor 4 transmits the data to the lifting beam controller 2. Through the controller calculation, the function of weighing the lifting beam is realized. Specifically, based on the detection values ​​of the two weighing sensors and the structural characteristics of the lifting beam, the controller can convert the mathematical relationship between the measured values ​​of the weighing sensors and the actual load of the lifting beam into proportion and then sum them up, so as to obtain the actual load of the lifting beam and display the values ​​on the controller display.

[0027] In another preferred embodiment of the above-mentioned lifting beam control system, the lifting device 10 can be preferably a lifting hydraulic hoist, a lifting hydraulic motor or a lifting hydraulic cylinder. Moreover, the center of gravity adjustment device 12 can be preferably a center of gravity adjustment hydraulic cylinder, a center of gravity adjustment ball screw or a center of gravity adjustment gear rack. Of course, other types of devices that can play the same role can also be selected according to actual needs, which is not limited here.

[0028] It can be seen that through the information collection and signal processing of the above-mentioned various sensors and the operation of the controller, the functions of remote control operation of the lifting beam, weighing and weight display of the lifting beam, overload protection, automatic lifting stop when the lifting height is in place, fault warning and recording of the lifting beam, and intelligent unloading can be realized, which greatly improves the automation and intelligence level of the lifting beam operation, avoids the close contact between the lifting beam operator and the materials to be transported or large coal mine equipment such as hydraulic supports, and interacts with the monorail crane locomotive or the dispatching platform to realize the functions of grouping operation, intelligent unloading, and active obstacle avoidance of the lifting beam, reduce the number of auxiliary transportation personnel in the coal mine, effectively protect the life safety of employees of mining enterprises, and improve the transportation efficiency of the lifting beam of the monorail crane. The lifting beam has an automatic center of gravity adjustment function, reduces the required lane width when the lifting beam passes through a curve, improves the performance of the lifting beam passing through a curve, reduces the influence of the lifting beam on the track when the lifting beam passes through a horizontal curve with a heavy load, and avoids the track from being damaged prematurely due to a large twisting force. Moreover, the above-mentioned lifting beam control system has added an automatic center of gravity adjustment function to meet the transportation requirements of large coal mining equipment such as integral hydraulic supports in complex tunnels with multiple ups and downs, large inclinations, long distances, multiple branches, and small cross-sectional heights in complex and high-risk underground mines. It can reduce the tunnel width required for the lifting beam to pass through a curve, improve the bending performance of the lifting beam, and at the same time reduce the impact of the lifting beam on the track when the lifting beam passes a horizontal curve with a heavy load, weaken the occurrence of heavy-load track twisting of the lifting beam, reduce the workload of tunnel expansion when a monorail crane lifting beam is used to transport large coal mining equipment such as integral hydraulic supports in low tunnels, and improve the transportation efficiency of large coal mining equipment such as integral hydraulic supports in tunnels with narrow cross-sectional dimensions.

[0029] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting beam control system, characterized in that: It includes a lifting beam controller, a remote controller, a lifting control solenoid valve group, a center of gravity adjustment solenoid valve group, and an inclination sensor installed on a cross beam and connected to the lifting beam controller, wherein the remote controller is connected to the lifting beam controller by radio frequency wireless communication, and the lifting beam controller is also connected to the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group, the other end of the lifting control solenoid valve group is connected to a lifting device, and the other end of the center of gravity adjustment solenoid valve group is connected to a center of gravity adjustment device, the remote controller is used to receive key commands and send the key commands to the lifting beam controller, the lifting beam controller is used to send lifting commands to the lifting control solenoid valve group based on the lifting control commands in the key commands, and the lifting control solenoid valve group is used to control the lifting The device is lifted and lowered, the inclination sensor is used to transmit the monitored inclination of the cross beam when the lifting beam is running along the track under the traction of the monorail crane locomotive to the lifting beam controller, the lifting beam controller is used to calculate the center of gravity adjustment strategy based on the inclination and transmit it to the center of gravity adjustment solenoid valve group, the center of gravity adjustment solenoid valve group is used to control the center of gravity adjustment device to adjust the center of gravity of the lifting beam based on the center of gravity adjustment strategy, the center of gravity adjustment device is a center of gravity adjustment hydraulic cylinder, the P port of the center of gravity adjustment solenoid valve group is connected to the oil supply port of the auxiliary control circuit of the monorail crane locomotive through a hydraulic oil pipe, the T port is connected to the hydraulic oil tank of the monorail crane locomotive through a hydraulic oil pipe, and the a1, b1, a2, and b2 oil ports of the center of gravity adjustment solenoid valve group are respectively connected to the oil inlet and return ports of the center of gravity adjustment hydraulic cylinder; It also includes a distance measuring sensor installed on the lifting beam body, which is used to monitor the distance between the lifting beam body and the cross beam or the upper surface of the material to be transported when the lifting beam lifts the material to be transported, and transmit the distance data to the lifting beam controller, and the lifting beam controller is used to stop lifting the material to be transported when the distance is less than a preset distance threshold; It also includes a positioning sensor for monitoring the position of the lifting beam running along the track under the traction of the monorail crane locomotive, and transmitting the position data to the lifting beam controller, and the lifting beam controller is used to control the suspension of running along the track when reaching a preset position; It also includes a weighing sensor that is communicatively connected to the lifting beam controller, one end of the weighing sensor matches a key seat with a concave spherical surface through its convex spherical surface to form a spherical pair, and is connected to the lifting beam body, and the other end is connected to a lifting ring chain through a pin shaft, and is used to transmit weight data to the lifting beam controller; The lifting beam controller is used to exchange information with the monorail crane locomotive or the dispatching platform to realize the grouping operation, intelligent unloading and active obstacle avoidance functions of the lifting beam; The solenoid valves in the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group are load-sensitive valves, which are used to control the movement direction and speed of the lifting beam, and realize the control of the flow of the actuator regardless of the load; Through the information collection and signal processing of the above-mentioned various sensors and the operation of the lifting beam controller, the lifting beam remote control operation, lifting beam weighing and weight display, automatic lifting stop when the lifting height is reached, and lifting beam fault warning and recording functions are realized; It also includes a pressure sensor installed on the lifting control solenoid valve group and the center of gravity adjustment solenoid valve group. The pressure sensor is communicatively connected to the lifting beam controller and is used to monitor the oil supply pipeline pressure of the lifting beam and transmit it to the lifting beam controller. The lifting beam controller is used to stop or continue the oil supply based on the pipeline pressure.

2. The lifting beam control system according to claim 1, characterized in that: The lifting device is a lifting hydraulic hoist, a lifting hydraulic motor or a lifting hydraulic cylinder.

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