Disc brake control device and control method thereof

Abstract

The invention discloses a disc brake control apparatus and a control method thereof. The disc brake control device mainly comprises an electric cabinet, a hydraulic pump station and a disc brake, the electric cabinet is directly connected with an oil pump motor, and starting and stopping of the oil pump motor are controlled through a contactor in the electric cabinet. The electric control box has a remote control mode and a near control mode, and both the remote control mode and the near control mode can achieve emergency braking and flexible braking through the disc brake control device. By arranging the electric control box, an electromagnetic starter does not need to be independently configured for the hydraulic pump station, the number of devices is reduced, the size and cost of the whole device are reduced, in addition, the device has the fault monitoring and protection action functions, various faults and the like can be monitored and displayed, fault alarm events can be recorded, a historical alarm record table can be generated, and the fault alarm effect is improved. Historical fault information can be conveniently inquired in later maintenance, the maintenance efficiency is improved, and potential problems are timely found and solved.

Description

Technical Field

[0001] The invention relates to the technical field of underground coal mine transmission control, and in particular to a control device and a control method of a disc brake device of an underground coal mine belt conveyor. Background Art

[0002] Belt conveyor is the main transportation equipment of fully mechanized mining face, and its transportation efficiency and safety directly determine the transportation capacity of the face. The safety of belt conveyor transportation is largely determined by the effectiveness of equipment braking. At present, the types of brake devices used in belt conveyors include block brakes, disc brakes, hydraulic brakes and hydraulic pressure-regulating brakes. Disc brakes have the advantages of large braking torque, adjustable braking force and braking clearance, sensitive action, good heat dissipation performance, simple structure, low production cost, and easy use and maintenance. Therefore, most of the existing large-scale belt conveyors in coal mines use disc brakes.

[0003] However, the existing disc brake devices have the following shortcomings: 1. The integration of the electric control box of the existing disc brake device is not high enough, and the hydraulic pump station needs to be equipped with an electromagnetic starter separately, and the number of devices is large; 2. The existing disc brakes are directly braked when the power is off. Over time, it will cause a great mechanical impact on the belt conveyor, and in severe cases it will cause a belt break accident. Summary of the invention

[0004] Based on the above shortcomings of the prior art, the present invention provides a disc brake control device and a control method for a mine belt conveyor to solve the technical problems of low integration of the electric control box and a single braking method. The present application provides a disc brake control device and a control method.

[0005] In the first aspect, a disc brake control device is provided, comprising an electronic control box, a hydraulic pump station and a disc brake, the hydraulic pump station comprising an oil pump motor, a normally open solenoid valve, a normally closed solenoid valve and a proportional valve, characterized in that the electronic control box is connected to the hydraulic pump station, and the hydraulic pump station is connected to the disc brake; the electronic control box is connected to a centralized control PLC control box to receive a remote control signal from the centralized control PLC control box; the electronic control box is connected to the proportional valve, the normally open solenoid valve and the normally closed solenoid valve to control their working states; the electronic control box is directly connected to the oil pump motor, and the start and stop of the oil pump motor are controlled by a contactor in the electronic control box.

[0006] In combination with any embodiment of the present application, there is a display screen above the control panel of the electric control box, and three knobs and five buttons are arranged below the display screen. The three knobs are knob SA1, knob SA2 and knob SA3, and the five buttons are SB1, SB2, SB3, SB4, and SB5.

[0007] In combination with any embodiment of the present application, the knob SA1 has the function of "local control-parameter setting-remote control", which switches between the three functions of local control, parameter setting and remote control; the knob SA2 has the function of "speed-reset-no speed", which switches between the three functions of speed, reset and no speed; the knob SA3 has the function of "1# pump station 1-historical alarm query-2# pump station", which switches between the three functions of 1# pump station, historical alarm query and 2# pump station.

[0008] In combination with any embodiment of the present application, the button SB1 has a "brake release-parameter selection" multiplexing function, which switches between the brake release and parameter selection functions; the button SB2 has a "quick braking-parameter addition" multiplexing function, which switches between quick braking and parameter addition functions; the button SB3 has a "flexible braking-parameter subtraction" multiplexing function, which switches between flexible braking and parameter subtraction functions; the button SB4 is a page turning button to realize display screen switching; the button SB5 has a "parameter adjustment units digit-parameter adjustment tens digit" multiplexing function, which switches between flexible parameter adjustment units digit and parameter adjustment tens digit.

[0009] In combination with any embodiment of the present application, the hydraulic pump station adopts a dual pump station deployment, and the hydraulic pump station includes two branches. The first branch is the 1# oil pump and the 1# oil pump motor, and the second branch is the 2# oil pump and the 2# oil pump motor. The two branches back up each other. When one branch is working, the other branch is backed up. When the working branch fails, it switches to the other branch.

[0010] In combination with any embodiment of the present application, the disc brake control device has a protection action. When the oil pump motor fails, the oil pump motor sends a fault signal to the electronic control box, triggering the electronic control box to start the parking brake function.

[0011] In combination with any implementation manner of the present application, the fault includes a pressure maintaining fault, a frequent starting fault, an overload fault, and a low pressure fault.

[0012] In combination with any embodiment of the present application, in response to receiving the fault signal, the electric control box records the fault event and generates a historical alarm record table, wherein the historical alarm record table includes the fault date, specific event, object name, alarm value and alarm description.

[0013] In combination with any embodiment of the present application, the hydraulic pump station includes an oil tank, an oil suction filter, an oil pump, an oil pump motor, a manual pump, a filter, a one-way valve, a normally open solenoid valve, a relief valve, a throttle valve, a normally closed solenoid valve, a proportional valve, an accumulator, an amplifier, a pressure gauge, and a one-way valve; the inlet of the manual pump is connected to the oil tank through the oil suction filter, and the outlet of the manual pump is connected to the disc brake, the one-way valve, the normally open solenoid valve, the normally closed solenoid valve, the accumulator, the amplifier, and the pressure gauge through the one-way valve; the inlet of the oil pump is connected to the oil tank through the oil suction filter, and the outlet of the oil pump is connected to the disc brake, the normally open solenoid valve, the normally closed solenoid valve, the accumulator, the amplifier, the pressure gauge, and the one-way valve through the filter; both sides of the oil pump are connected to the oil pump motor, and the oil pump is controlled by the oil pump motor; the other end of the normally open solenoid valve is connected to the oil tank through the relief valve and the throttle valve; the other end of the normally closed solenoid valve is connected to the oil tank through the proportional valve.

[0014] In a second aspect, a remote control method for a disc brake control device is provided, and the specific steps are as follows.

[0015] Step 1: Turn the knob SA1 of the electric control box to the right to start remote control. The centralized PLC control box sends a remote control signal to the electric control box, and the hydraulic pump station is controlled by the electric control box; Step 2: When the centralized control PLC control box remotely sends a release signal to the electric control box, the electric control box controls the contactor to close and the oil pump motor to start, and at the same time controls the normally open solenoid valve to close when it is energized and the normally closed solenoid valve to close when it is de-energized. The oil pump motor drives the oil pump to work, outputs the hydraulic oil to the one-way valve through the filter, and then enters the oil chamber of the disc brake through the one-way valve; Step 3: When the oil pressure in the oil chamber of the disc brake rises to the set pressure, the electric control box controls the contactor to open, and the oil pump motor and the oil pump stop working; Step 4: When the oil pressure in the oil tank of the disc brake drops below the set pressure of the hysteresis, the electronic control box controls the oil pump motor to start, driving the oil pump to supply fluid to the disc brake to replenish the pressure. When the oil pressure in the oil chamber of the disc brake reaches the set pressure, the oil pump is controlled to stop; Step 5: When the centralized control PLC control box remotely sends a flexible brake signal to the electric control box, the electric control box controls the normally open solenoid valve to be energized to close and the normally closed solenoid valve to be energized to open, the oil circuit on the normally closed solenoid valve is opened, and the oil in the oil chamber of the disc brake flows back to the oil tank through the normally closed solenoid valve and the proportional valve, and the disc brake of the disc brake slowly tightens; Step 6: When the centralized control PLC control box remotely sends a rapid braking signal to the electric control box, the electric control box controls the normally open solenoid valve to open and the normally closed solenoid valve to close. The oil circuit on the normally open solenoid valve is opened, and the oil in the oil chamber of the disc brake quickly flows back to the oil tank through the normally open solenoid valve. The oil pressure in the brake disc is reduced, and the disc brake of the disc brake quickly clamps.

[0016] In a third aspect, a close control method of a disc brake control device is provided, and the specific steps are as follows.

[0017] Step 1: Turn SA1 of the electric control box to the left, start the local control, and directly control the hydraulic pump station through the electric control box; Step 2: When the button SB1 on the electric control box is pressed, the brake release function is started, the electric control box controls the contactor to close, the oil pump motor to start, and at the same time controls the normally open solenoid valve to close when it is energized and the normally closed solenoid valve to close when it is de-energized. The oil pump motor drives the oil pump to work, outputs the hydraulic oil to the one-way valve through the filter, and then enters the oil chamber of the disc brake through the one-way valve; Step 3: When the oil pressure in the oil chamber of the disc brake rises to the set pressure, the electric control box controls the contactor to open, and the oil pump motor and the oil pump stop; Step 4: When the oil pressure in the oil tank of the disc brake drops below the set pressure of the hysteresis, the electronic control box controls the oil pump motor to start, drives the oil pump to supply fluid to the disc brake to replenish the pressure, and when the oil pressure in the oil chamber of the disc brake reaches the set pressure, controls the oil pump motor and the oil pump to stop working; Step 5: When the button SB3 on the electric control box is pressed, the soft brake function is started, the electric control box controls the normally open solenoid valve to be energized to close, and the normally closed solenoid valve to be energized to open, the oil circuit on the normally closed solenoid valve is opened, the oil in the oil chamber of the disc brake flows back to the oil tank through the normally closed solenoid valve and the proportional valve, and the disc brake of the disc brake slowly tightens; Step 6: When the button SB2 on the electronic control box is pressed, the rapid braking function is started. The electronic control box controls the normally open solenoid valve to open when power is lost, and the normally closed solenoid valve to close when power is lost. The oil circuit on the normally open solenoid valve is opened, and the oil in the oil chamber of the disc brake quickly flows back to the oil tank through the normally open solenoid valve. The oil pressure in the brake disc is reduced, and the disc brake of the disc brake quickly clamps.

[0018] Compared with the prior art, this application has the following beneficial effects: 1. The electric control box of the disc brake control device has a high degree of integration. The electric control box is equipped with a hydraulic pump station power supply and control circuit. The electric control box is directly connected to the oil pump motor 1 and the oil pump motor 2. The start and stop of the oil pump motor are controlled by the contactor in the electric control box. There is no need to configure an electromagnetic starter for the hydraulic pump station separately, which reduces the number of equipment and reduces the overall equipment volume and cost; 2. The dual-pump station design of the disc brake control device allows the electric control box to adapt to both single-pump station and dual-pump station working conditions without changing its own structure, and improves the reliability of the system; 3. The electric control box has two control modes: remote control and local control. Both remote control and local control can achieve emergency braking and flexible braking through the disc brake control device. The oil pressure is precisely adjusted through the highly sensitive proportional valve, and the system pressure is accurately and real-timely regulated to overcome the mechanical impact on the belt conveyor caused by the traditional power-off direct brake method; 4. The disc brake control device has the function of fault monitoring and protection action, which can monitor and display pressure maintenance faults, frequent starting faults, overload faults and low pressure faults; when a fault occurs, the motor comprehensive protector will be activated and a stop request will be automatically issued; at the same time, the fault alarm events can be recorded and a historical alarm record table can be generated to facilitate the subsequent maintenance and query of historical fault information, improve maintenance efficiency, and promptly discover and solve potential problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application 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 some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of a disc brake control device provided in an embodiment of the present application; Figure 2 A system structure of a hydraulic pump station provided in an embodiment of the present application; Figure 3 A connection diagram of an electric control box is provided for an embodiment of the present application; Figure 4 A schematic diagram of a control panel of an electric control box provided in an embodiment of the present application; Figure 5 A schematic diagram of an electric control box displaying operating status indication and related parameters provided in an embodiment of the present application; Figure 6 A schematic diagram of an electric control box displaying historical alarms provided in an embodiment of the present application; Figure 7 A schematic diagram of a control method for a disc brake control device provided in an embodiment of the present application.

[0021] Reference numerals:1. Fuel tank, 2. Oil suction filter, 3. Air filter, 4. Oil pump, 5. Oil pump motor, 6. Manual pump, 7. Visual indicator, 8. Filter, 9. Overflow valve, 10. Disc brake, 11. Check valve, 12. Normally open solenoid valve, 13. Overflow valve, 14. Throttle valve, 15. Normally closed solenoid valve, 16. Proportional valve, 17. Accumulator, 18. Throttle stop valve, 19. Amplifier, 20. Pressure gauge, 21. Pressure sensor, 22. Check valve. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the embodiments of the present application should fall within the scope of protection of the embodiments of the present application.

[0023] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] In addition, in the description of the present application, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] Embodiment 1 The first embodiment of the present application provides a disc brake control device, including an electric control box, a hydraulic pump station and a disc brake, wherein the hydraulic pump station includes an oil pump motor, a normally open solenoid valve, a normally closed solenoid valve and a proportional valve. Figure 1 As shown, the electric control box is connected to the hydraulic pump station, and the hydraulic pump station is connected to the disc brake.

[0029] Furthermore, the electric control box is connected to the proportional valve, the normally open solenoid valve, and the normally closed solenoid valve to control their working states; the electric control box is directly connected to the oil pump motor, and the oil pump motor is controlled by a contactor in the electric control box.

[0030] In actual deployment, the hydraulic pump station can be set as a single pump station or a double pump station according to specific needs. In the single pump station deployment, the hydraulic pump station only contains one oil pump and oil pump motor. The deployment cost is low, but when the oil pump and oil pump motor fail, the hydraulic pump station will stop working, causing greater losses; in the double pump station deployment, the hydraulic pump station contains two oil pumps and two oil pump motors, namely 1# oil pump and 1# oil pump motor, 2# oil pump and 2# oil pump motor, and the two branches back up each other. When one branch is working, the other branch is backed up. When the working branch fails, it can automatically switch to the other branch, so that the hydraulic pump station will not stop working due to failure of the oil pump and oil pump motor.

[0031] The disc brake device includes a mechanical brake subsystem, a hydraulic brake subsystem and related electrical control subsystems. The mechanical brake subsystem is mainly composed of a disc brake and a brake disc. The disc brake contains multiple butterfly springs, which provide braking torque by applying positive pressure to it to generate friction. The hydraulic brake subsystem is at the core of the disc brake. It is a device that converts mechanical energy into pressure with the help of a hydraulic pump based on the power provided by the motor. The main task of the electrical control system is to control the pressure of the hydraulic oil.

[0032] When the hydraulic brake subsystem is working, the brake is released by oil pressure and engaged by the elastic force of the disc spring. When the hydraulic oil rushes into the brake oil chamber, the piston is pushed backward under the pressure of the hydraulic oil, compressing the disc spring. At this time, the brake shoe leaves the brake disc and is in a released state; when the oil pressure in the brake oil chamber decreases, the disc spring gradually eliminates the compression deformation in the released state, pushes the piston forward, and presses the brake shoe against the brake disc, which is in an engaged state.

[0033] Furthermore, the disc brake control device has a protective action. During operation, if the oil pump motor is overloaded, short-circuited, phase-lost or leaking, the oil pump motor sends a fault signal to the electric control box, which activates the parking brake; in addition, the electric control box also records the fault time based on the fault signal sent by the oil pump motor, including the date, specific event, object name, alarm value and alarm description of the fault, and generates a historical alarm record table, which is convenient for later maintenance to query historical fault information, improve maintenance efficiency, and timely discover and solve potential problems.

[0034] Embodiment 2 Embodiment 2 of the present application provides a system structure of a hydraulic pump station. The system structure of the hydraulic pump station is as follows: Figure 2 As shown, the hydraulic pump station includes two power sources that are interconnected.

[0035] The first power source is connected to the oil tank 1 through the inlet of the manual pump 6 through the oil suction filter 2, and the outlet of the manual pump 6 is connected to the disc brake 10, the one-way valve 11, the normally open solenoid valve 12, the normally closed solenoid valve 15, and the accumulator 17 through the one-way valve 22. The manual pump power source controls the oil pump manually and can be used as a backup when there is a power outage or a failure of the second power source.

[0036] The second power source is connected to the oil tank 1 through the oil suction filter 2 at the inlet of the oil pump 4, and the outlet of the oil pump 4 is connected to the disc brake 10, the normally open solenoid valve 12, the normally closed solenoid valve 15, the accumulator 17, and the one-way valve 22 through the filter 8 and the one-way valve 11; the two sides of the oil pump 4 are connected to the oil pump motor 5, and the oil pump 4 is controlled by the oil pump motor 5; the two sides of the filter 8 are connected to the visual transmitter 7, and the oil pressure difference between the outlet and the inlet of the filter 8 is detected by the visual transmitter 7; the other end of the normally open solenoid valve 12 is connected to the oil tank 1 through the overflow valve 13 and the throttle valve 14; the other end of the normally closed solenoid valve 15 is connected to the oil tank 1 through the proportional valve 16.

[0037] An air filter 3 and a pressure sensor 21 are connected to the fuel tank 1, wherein the air filter 3 can filter the air entering the fuel tank 1 to prevent dust, impurities, foreign objects, etc. from entering the interior of the fuel tank, thereby keeping the interior of the fuel tank clean and reducing the impact of pollutants in the fuel tank; the pressure sensor 21 can be used to detect the pressure in the fuel tank.

[0038] When the electric control box receives the release signal, the electric control box controls the normally open solenoid valve 12 to be powered on and closed, and the normally closed solenoid valve 15 to be powered off and closed. At the same time, it controls the contactor to close and the oil pump motor to start. The oil pump motor drives the oil pump to work. After the hydraulic oil passes through the filter 2, the oil pump 4, the filter 7, and the one-way valve 11 from the oil tank 1, since the normally open solenoid valve 12 and the normally closed solenoid valve 15 are both closed, the hydraulic oil cannot flow back to the oil tank 1 through the branches of the normally open solenoid valve 12 and the normally closed solenoid valve 15, and can only enter the oil chamber of the disc brake. As the hydraulic oil in the oil chamber of the disc brake increases, the pressure increases, compressing the disc spring, causing the brake shoe to leave the brake disc and enter the release state. At this time, the electric control box controls the contactor to open and the oil pump motor to stop working. When the oil pressure in the oil chamber of the disc brake drops to a certain threshold, the electric control box controls the contactor to close and the oil pump motor to start working, and the hydraulic oil enters the oil chamber of the disc brake again to replenish the pressure to ensure that the disc brake remains in the release state.

[0039] When the electric control box receives the flexible brake signal, the electric control box controls the normally open solenoid valve 12 to be powered on and the normally closed solenoid valve 15 to be powered on. At this time, the oil circuit of the normally closed solenoid valve 15 is opened, and the hydraulic oil in the oil chamber of the disc brake enters the proportional valve 16 through the normally closed solenoid valve 15. The proportional valve 16 controls the flow rate of the hydraulic oil to allow the hydraulic oil to slowly flow back to the oil tank 1. The oil pressure is precisely adjusted by the highly sensitive proportional valve, and the system pressure is accurately and real-timely regulated to overcome the mechanical impact of the traditional power-off direct brake method on the belt conveyor. As the hydraulic oil slowly flows back to the oil tank 1, the oil pressure in the disc brake also slowly decreases, the disc spring gradually eliminates the compression deformation, pushes the piston forward, and makes the brake shoe approach the brake disc, so that the disc brake slowly tightens, realizing slow braking and achieving the effect of flexible braking.

[0040] When the electric control box receives the rapid braking signal, the electric control box controls the normally open solenoid valve 12 to open and the normally closed solenoid valve 15 to close. At this time, the oil circuit of the normally open solenoid valve 12 is opened, and the hydraulic oil in the oil chamber of the disc brake quickly flows back to the oil tank 1 through the normally open solenoid valve 12. As the hydraulic oil quickly flows back to the oil tank 1, the oil pressure in the disc brake decreases rapidly, the disc spring quickly eliminates the compression deformation, pushes the piston forward, makes the brake shoe close to the brake disc, and makes the disc brake hold tightly, realizing rapid braking and achieving the effect of emergency braking.

[0041] Embodiment 3 The first embodiment of the present application provides an electric control box. The connection diagram of the electric control box is as follows Figure 3 The electric control box is connected to the centralized control PLC control box, and sends fault alarm signals, gate opening position signals, and remote control signals to the centralized control PLC control box; and receives remote brake release control signals, remote emergency brake signals, and remote flexible brake signals from the centralized control PLC control box.

[0042] The electric control box is connected to the centralized PLC control box through a wired network or a wireless network. For example, the wired network may include coaxial cables, twisted pairs, and optical fibers, and the wireless network may be a 2G network, a 3G network, a 4G network, or a 5G network, a Wireless Fidelity (WIFI) network, etc., and this application does not limit this.

[0043] The electric control box is connected to the proportional valve, normally open solenoid valve, normally closed solenoid valve, oil pump motor 1, and oil pump motor 2 to control their working status. The electric control box is configured with the hydraulic pump station power supply and control circuit. The electric control box is directly connected to the oil pump motor 1 and oil pump motor 2. The start and stop of the oil pump motor is controlled by the contactor in the electric control box. There is no need to configure an electromagnetic starter for the hydraulic pump station separately, which reduces the number of equipment and reduces the overall equipment volume and cost.

[0044] The control panel of the electric control box is as follows Figure 4 There is a display screen above the control panel, and three knobs and five buttons are arranged below the display screen. The three knobs are knob SA1, knob SA2, and knob SA3, and the five buttons are button SB1, button SB2, button SB3, button SB4, and button SB5.

[0045] Knob SA1 has the functions of "local control-parameter setting-remote control", which can switch between local control, parameter setting and remote control. When knob SA1 is turned to the left, the local control function is selected, and the release and braking operations are performed through the buttons of the electric control box to control the hydraulic pump station in response. When knob SA1 is turned to the right, the remote control function is selected, and the hydraulic pump station is controlled through the remote centralized PLC control box. When knob SA1 is turned to the middle, the parameter setting function is selected, and the relevant secondary parameters of the hydraulic pump station can be set.

[0046] Knob SA2 has the function of "speed-reset-no speed", which can switch between the three functions of speed, reset and no speed. When knob SA2 is turned to the left, the speed function is selected, the disc brake is connected to the oil pressure sensor, the oil pressure of the disc brake is collected through the oil pressure sensor, and the collected oil pressure data is transmitted to the electronic control box for display. When knob SA2 is turned to the right, the no speed function is selected, and the disc brake is not connected to the oil pressure sensor. When knob SA2 is turned to the middle, the reset function is selected to reset the fault of the disc brake.

[0047] Knob SA3 has the function of "1# Pump Station 1-Historical Alarm Query-2# Pump Station", which can switch between the three functions of 1# Pump Station, Historical Alarm Query, and 2# Pump Station. When the hydraulic pump station is deployed with dual pump stations, knob SA3 can be used to switch between the two pump station branches. Specifically, when knob SA3 is turned to the left, the 1# Pump Station function is selected, 1# oil pump and 1# oil pump motor are in working state, and 2# oil pump and 2# oil pump motor are in backup state. When knob SA3 is turned to the right, the Pump Station 2 function is selected, 2# oil pump and 2# oil pump motor are in working state, and 1# oil pump and 1# oil pump motor are in backup state. When knob SA3 is turned to the middle, the historical alarm function is selected, and the historical faults of the disc brake can be queried. Such as Figure 6 As shown, the historical alarm status of the brake control system is displayed. Through this page, you can view the historical alarm information of the system, including the date, time, object name, alarm value, and alarm description of the alarm.

[0048] Button SB1 has the multiplexing function of "release-parameter selection", which can switch between release and parameter selection functions. When the knob SA1 is rotated to the left to select the near control function, button SB1 is the release function. After pressing button SB1, the electric control box outputs a release signal to the hydraulic pump station to control the hydraulic pump station to release. When the knob SA1 is rotated to the middle rotation parameter setting function, button SB1 is the parameter selection function. After pressing button SB1, you can switch between the parameters [pump station 1 working pressure, pump station 1 release pressure setting value, pump station 1 pressure hysteresis setting value, flexible braking time stage 1 setting value, flexible braking time pressure setting value, flexible braking time stage 2 setting value, speed range setting]. Specifically, when the current parameter is the working pressure of pump station 1, after pressing button SB1, the parameter switches to the release pressure setting value of pump station 1, and the release pressure setting value parameter of pump station 1 can be set. After continuing to press button SB1, the parameter switches to the pressure hysteresis setting value of pump station 1, and the pressure hysteresis setting value parameter of pump station 1 can be set, and so on.

[0049] Button SB2 has the multiplexing function of "quick braking-parameter plus", which can switch between quick braking and parameter plus functions. When the knob SA1 is rotated to the left to select the near control function, button SB2 is the quick braking function. After pressing button SB2, the electric control box outputs a quick braking signal to the hydraulic pump station to control the hydraulic pump station to perform quick braking. When the knob SA1 is rotated to the middle rotation parameter setting function, button SB2 is the parameter plus function. The [pump station 1 working pressure, pump station 1 release pressure setting value, pump station 1 pressure hysteresis setting value, flexible braking time stage 1 setting value, flexible braking time pressure setting value, flexible braking time stage 2 setting value, speed range setting] parameters are increased and adjusted through buttons SB1, SB2, and SB5. Specifically, when the knob SA1 is rotated to the middle rotation parameter setting function, the current parameter is switched through button SB1, and the adjustment position of the current parameter is switched through button SB5. If the current parameter is switched to the set value of the release pressure of pump station 1 by button SB1, and the adjustment digit of the current parameter of the release pressure of pump station 1 is switched to the ones digit by button SB5, then pressing button SB2 can increase the parameter value of the release pressure of pump station 1 by 1. If the current parameter is switched to the set value of the pressure hysteresis difference of pump station 1 by button SB1, and the adjustment digit of the current parameter of the pressure hysteresis difference of pump station 1 is switched to the tens digit by button SB5, then pressing button SB2 can increase the parameter value of the pressure hysteresis difference of pump station 1 by 10.

[0050] Button SB3 has the multiplexing function of "flexible braking-parameter reduction", which can switch between flexible braking and parameter reduction functions. When the knob SA1 is rotated to the left to select the near control function, button SB3 is the flexible braking function. After pressing button SB3, the electric control box outputs a flexible braking signal to the hydraulic pump station to control the hydraulic pump station to perform flexible braking. When the knob SA1 is rotated to the middle rotation parameter setting function, button SB3 is the parameter reduction function. The [pump station 1 working pressure, pump station 1 release pressure setting value, pump station 1 pressure hysteresis setting value, flexible braking time stage 1 setting value, flexible braking time pressure setting value, flexible braking time stage 2 setting value, speed range setting] parameters are reduced and adjusted through buttons SB1, SB3, and SB5. Specifically, when the knob SA1 is rotated to the middle rotation parameter setting function, the current parameter is switched through button SB1, and the adjustment position of the current parameter is switched through button SB5. If the current parameter is switched to the set value of the release pressure of pump station 1 by button SB1, and the adjustment digit of the current parameter of the release pressure of pump station 1 is switched to the ones digit by button SB5, then pressing button SB3 can reduce the parameter value of the release pressure of pump station 1 by 1. If the current parameter is switched to the set value of the pressure hysteresis difference of pump station 1 by button SB1, and the adjustment digit of the current parameter of the pressure hysteresis difference of pump station 1 is switched to the tens digit by button SB5, then pressing button SB3 can reduce the parameter value of the pressure hysteresis difference of pump station 1 by 10.

[0051] Button SB4 is a page-turning button for switching the display screen. When knob SA3 is rotated to the middle to query the historical alarm, the historical alarm status of the brake control system can be viewed. If the number of historical alarms is large and one page cannot be fully displayed, the SB4 button can be used to turn the page to view the historical alarm status of the next page.

[0052] Button SB5 has the multiplexing function of "parameter adjustment units-parameter adjustment tens", which can switch between flexible parameter adjustment units and parameter adjustment tens. When the knob SA1 is rotated to the left to select the near control function, button SB5 is invalid, and there is no response when pressing button SB5. When the knob SA1 is rotated to the middle rotation parameter setting function, the [pump station 1 working pressure, pump station 1 release pressure setting value, pump station 1 pressure hysteresis setting value, flexible braking time stage 1 setting value, flexible braking time pressure setting value, flexible braking time stage 2 setting value, speed range setting] parameters are adjusted through buttons SB1, SB2, SB3, and SB5. Specifically, when the knob SA1 is rotated to the middle rotation parameter setting function, the current parameter is switched through button SB1, and the adjustment position of the current parameter is switched through button SB5. If the current parameter is switched to the release pressure setting value of pump station 1 by button SB1, and the current value of the release pressure setting value of pump station 1 is 186, switch to the adjustment digit of the current parameter to the ones digit by button SB5, press button SB2 to increase the release pressure setting value of pump station 1 by 1 to 187, continue to press button SB2 to increase the release pressure setting value of pump station 1 by 1 to 188, continue to press button SB5 to switch the adjustment digit of the current parameter to the tens digit, press button SB3 to decrease the release pressure setting value of pump station 1 by 10 to 178.

[0053] The display shows the operating status of the liquid pump system and related parameters, such as Figure 5 As shown, the operation status indication includes control mode indication, parameter adjustment indication, pump station selection 1# indication, parameter setting indication, oil pump operation execution, gate in place signal indication, reset indication, pump station fault indication, pressure maintenance fault indication, frequent start indication, overload fault indication, low pressure fault indication, gate in place output indication, and remote control release indication. Specifically, when the knob SA1 is turned to the left to select the local control function, the local indicator light of the control mode indication is on; when the knob SA1 is turned to the right to select the remote control function, the remote control indicator light of the control mode indication is on; when the knob SA1 is turned to the middle to select the parameter setting function, the parameter setting indicator light is on. When the knob SA2 is turned to the middle to select the reset function, the reset indicator light is on. When the knob SA3 is turned to the left to select the 1# pump station function, the pump station selection 1# indicator light is on. When the oil pump is running, the oil pump operation indicator light is on. When the pump station fails, the pump station fault indicator light is on. When the system self-checks the type of fault, such as a pressure maintenance fault, the pressure maintenance fault light is on.

[0054] The relevant parameters of the display screen include [pump station 1 working pressure, pump station 1 release pressure setting value, pump station 1 pressure hysteresis setting value, flexible braking time stage 1 setting value, flexible braking time pressure setting value, flexible braking time stage 2 setting value, speed range setting] parameters, which are used to display the current parameter values ​​and adjusted parameter values ​​of these parameters.

[0055] Embodiment 4 Embodiment 4 of the present application provides a remote control method for a disc brake control device. The disc brake control device can control the normally open solenoid valve 12 (FAS-EX), the normally closed solenoid valve 15 (FLE-EX), and the oil pump motor to realize the disc brake release and brake holding functions. The control method of the disc brake control device is as follows Figure 7 As shown, the details are as follows.

[0056] Step 1: Turn the knob SA1 of the electric control box to the right to start remote control. The centralized PLC control box sends a remote control signal to the electric control box, and the hydraulic pump station is controlled by the electric control box.

[0057] Step 2: When the centralized control PLC control box remotely sends a release signal to the electric control box, the electric control box controls the contactor to close and the oil pump motor to start, and at the same time controls the normally open solenoid valve 12 (FAS-EX) to be energized and closed, and the normally closed solenoid valve 15 (FLE-EX) to be de-energized and closed. At this time, the oil pump motor 5 drives the oil pump 4 to work, and the hydraulic oil is output to the one-way valve 11 through the filter 8, and then enters the oil chamber of the disc brake 10 through the one-way valve 11; Step 3: The oil pressure in the oil chamber of the disc brake rises slowly, and the oil pressure sensor transmits the oil pressure signal to the electric control box; when the oil pressure in the oil chamber rises to the set pressure, the electric control box controls the contactor to open, and the oil pump motor 5 and the oil pump 4 stop working; Step 4: When the oil pressure in the disc brake oil tank drops below the set pressure of the hysteresis, the electronic control box controls the oil pump motor 5 to start, drives the oil pump 4 to supply fluid and replenish the pressure to the disc brake 10, and when the oil pressure in the oil chamber of the disc brake 10 reaches the set pressure, controls the oil pump to stop.

[0058] Step 5: When the centralized control PLC control box remotely sends a flexible braking signal to the electric control box, the electric control box controls the normally open solenoid valve 12 (FAS-EX) to be powered on and closed, and the normally closed solenoid valve 15 (FLE-EX) to be powered on and opened. The oil circuit on the normally closed solenoid valve 15 (FLE-EX) is opened, and the oil in the oil chamber of the disc brake 10 flows back to the oil tank 1 through the normally closed solenoid valve 15 (FLE-EX) and the proportional valve 16. The proportional valve 16 releases pressure according to the set curve, and the oil pressure in the brake disc decreases. The disc spring gradually eliminates the compression deformation, pushes the piston forward, and makes the brake shoe move closer to the brake disc, so that the disc brake is slowly tightened. Flexible braking is divided into two stages. In stage 1, the oil pressure in the oil chamber of the disc brake drops rapidly within the set time of stage 1, so that the brake shoe quickly fits the surface of the brake disc and reduces the time of the idle stroke; in stage 2, the oil pressure in the oil chamber of the disc brake slowly decreases within the set time of stage 2 until it is fully tightened. The time of flexible braking stage 1 and stage 2 can be set. Alternatively, a soft braking time pressure setting value may be set, and in stage 1, the oil pressure in the disc brake oil chamber drops rapidly to the soft braking time pressure setting value.

[0059] Step 6: When the centralized control PLC control box remotely sends a rapid braking signal to the electric control box, the electric control box controls the normally open solenoid valve 12 (FAS-EX) to open when it loses power, and the normally closed solenoid valve 15 (FLE-EX) to close when it loses power. The oil circuit on the normally open solenoid valve 12 (FAS-EX) is opened, and the oil in the disc brake oil chamber quickly flows back to the oil tank 1 through the normally open solenoid valve 12 (FAS-EX). The oil pressure in the brake disc is reduced, and the disc spring gradually eliminates the compression deformation, pushing the piston forward, so that the brake shoe moves closer to the brake disc, and the disc brake is quickly tightened.

[0060] In the remote control method of the disc brake control device, it is described that the remote control method executes all the processing from step 1 to step 6 in sequence, but among these steps, steps 2-4 realize the release function, step 5 realizes the flexible braking function, and step 6 realizes the rapid braking function. The execution order of these functions can be changed according to actual needs, that is, the execution order of steps 2-4, step 5, and step 6 can be changed according to actual conditions.

[0061] Embodiment 5 Embodiment 5 of the present application provides a method for controlling a disc brake control device. The disc brake control device can control the normally open solenoid valve 12 (FAS-EX), the normally closed solenoid valve 15 (FLE-EX), and the oil pump motor to realize the functions of releasing and holding the disc brake. The control method of the disc brake control device is as follows: Figure 7 As shown, the details are as follows.

[0062] Step 1: Turn SA1 of the electric control box to the left, start the local control, and directly control the hydraulic pump station through the electric control box.

[0063] Step 2: When the button SB1 on the electric control box is pressed, the brake release function is started. The electric control box controls the contactor to close and the oil pump motor to start, and at the same time controls the normally open solenoid valve 12 (FAS-EX) to be energized and closed, and the normally closed solenoid valve 15 (FLE-EX) to be de-energized and closed. At this time, the oil pump motor 5 drives the oil pump 4 to work, and the hydraulic oil is output to the one-way valve 11 through the filter 8, and enters the oil chamber of the disc brake 10 through the one-way valve 11; Step 3: The oil pressure in the oil chamber of the disc brake 10 rises slowly, and the oil pressure sensor transmits the oil pressure signal to the electric control box; when the oil pressure in the oil chamber rises to the set pressure, the electric control box controls the contactor to open, and the oil pump motor 5 and the oil pump 4 stop working; Step 4: When the oil pressure in the oil tank of the disc brake 10 drops below the backlash setting pressure, the electronic control box controls the oil pump motor 5 to start, drives the oil pump 4 to supply fluid and replenish the pressure to the disc brake 10, and when the oil pressure in the oil chamber of the disc brake 10 reaches the set pressure, controls the oil pump motor 5 and the oil pump 4 to stop working.

[0064] Step 5: When the button SB3 on the electric control box is pressed, the soft braking function is started. The electric control box controls the normally open solenoid valve 12 (FAS-EX) to be energized to close and the normally closed solenoid valve 15 (FLE-EX) to be energized to open; the oil circuit on the normally closed solenoid valve 15 (FLE-EX) is opened, and the oil in the oil chamber of the disc brake flows back to the oil tank through the normally closed solenoid valve 15 (FLE-EX) and the proportional valve 16. The proportional valve 16 releases pressure according to the set curve, the oil pressure in the brake disc decreases, the disc spring gradually eliminates the compression deformation, pushes the piston forward, and makes the brake shoe move closer to the brake disc, so that the disc brake is slowly tightened. The soft braking is divided into two stages. In stage 1, the oil pressure in the oil chamber of the disc brake drops rapidly within the set stage 1 time, so that the brake shoe quickly fits the surface of the brake disc and reduces the time of the idle stroke; in stage 2, the oil pressure in the oil chamber of the disc brake slowly decreases within the set stage 2 time until it is fully tightened. The time of the soft braking stage 1 and stage 2 can be set. Alternatively, a soft braking time pressure setting value may be set, and in stage 1, the oil pressure in the disc brake oil chamber drops rapidly to the soft braking time pressure setting value.

[0065] Step 6: When the button SB2 on the electric control box is pressed, the rapid braking function is started. The electric control box controls the normally open solenoid valve 12 (FAS-EX) to open when it loses power, and the normally closed solenoid valve 15 (FLE-EX) to close when it loses power; the oil circuit on the normally open solenoid valve 12 (FAS-EX) is opened, and the oil in the oil chamber of the disc brake quickly flows back to the oil tank 1 through the normally open solenoid valve 12 (FAS-EX), the oil pressure in the brake disc is reduced, the disc spring gradually eliminates the compression deformation, and pushes the piston forward, so that the brake shoe moves closer to the brake disc, and the disc brake is quickly tightened.

[0066] In the local control method of the disc brake control device, it is described that the remote control method executes all the processing from step 1 to step 6 in sequence, but among these steps, steps 2-4 realize the release function, step 5 realizes the flexible braking function, and step 6 realizes the rapid braking function. The execution order of these functions can be changed according to actual needs, that is, the execution order of steps 2-4, step 5, and step 6 can be changed according to actual conditions.

[0067] A person skilled in the art can clearly understand that, for the convenience and brevity of description, the specific process of the method described above can refer to the corresponding module of the aforementioned product claim, and will not be repeated here. A person skilled in the art can also clearly understand that the description of each embodiment of the present application has its own focus. For the convenience and brevity of description, the same or similar parts may not be repeated in different embodiments. Therefore, for the parts not described or not described in detail in a certain embodiment, refer to the records of other embodiments.

[0068] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not performed. Another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interface, indirect coupling or communication connection of the device or unit, which can be electrical, mechanical or other forms.

[0069] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions may be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0070] A person skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by a computer program to instruct the relevant hardware, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. The aforementioned storage medium includes: read-only memory (ROM) or random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0071] The above implementation methods are only used to illustrate the embodiments of the present application, and are not limitations on the embodiments of the present application. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present application. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present application. The scope of patent protection of the embodiments of the present application should be limited by the claims.

Claims

1. A disc brake control device, comprising an electric control box, a hydraulic pump station and a disc brake, wherein the hydraulic pump station comprises an oil pump motor, a normally open solenoid valve, a normally closed solenoid valve and a proportional valve, characterized in that: The electric control box is connected to the hydraulic pump station, and the hydraulic pump station is connected to the disc brake; the electric control box is connected to the centralized PLC control box to receive the remote control signal of the centralized PLC control box; the electric control box is connected to the proportional valve, the normally open solenoid valve, and the normally closed solenoid valve to control their working states; the electric control box is directly connected to the oil pump motor, and the start and stop of the oil pump motor are controlled by the contactor in the electric control box.

2. The disc brake control device according to claim 1, characterized in that: There is a display screen above the control panel of the electric control box, and three knobs and five buttons are arranged below the display screen. The three knobs are knob SA1, knob SA2 and knob SA3, and the five buttons are SB1, SB2, SB3, SB4 and SB5.

3. The disc brake control device according to claim 2, characterized in that: The knob SA1 has the functions of "local control-parameter setting-remote control", which switches between the three functions of local control, parameter setting and remote control; the knob SA2 has the function of "speed-reset-no speed", which switches between the three functions of speed, reset and no speed; the knob SA3 has the function of "1# pump station 1-historical alarm query-2# pump station", which switches between the three functions of 1# pump station, historical alarm query and 2# pump station.

4. The disc brake control device according to claim 2, characterized in that: The button SB1 has a multiplexing function of "brake release-parameter selection", which switches between the brake release and parameter selection functions; the button SB2 has a multiplexing function of "quick braking-parameter addition", which switches between quick braking and parameter addition functions; the button SB3 has a multiplexing function of "flexible braking-parameter subtraction", which switches between flexible braking and parameter subtraction functions; the button SB4 is a page turning button to realize display screen switching; the button SB5 has a multiplexing function of "parameter adjustment units digit-parameter adjustment tens digit", which switches between flexible parameter adjustment units digit and parameter adjustment tens digit.

5. The disc brake control device according to claim 1, characterized in that: The hydraulic pump station adopts a dual pump station deployment, and the hydraulic pump station includes two branches. The first branch is the 1# oil pump and the 1# oil pump motor, and the second branch is the 2# oil pump and the 2# oil pump motor. The two branches back up each other. When one branch is working, the other branch is backed up. When the working branch fails, it switches to the other branch.

6. The disc brake control device according to claim 1, characterized in that: The disc brake control device has a protection action. When the oil pump motor fails, the oil pump motor sends a fault signal to the electronic control box, triggering the electronic control box to start the parking brake function.

7. The disc brake control device according to claim 6, characterized in that: The faults include pressure maintenance fault, frequent start-up fault, overload fault, and low pressure fault.

8. The disc brake control device according to claim 6, characterized in that: In response to receiving the fault signal, the electric control box records the fault event and generates a historical alarm record table, wherein the historical alarm record table includes the fault date, specific event, object name, alarm value and alarm description.

9. The disc brake control device according to claim 1, characterized in that: The hydraulic pump station comprises an oil tank (1), an oil suction filter (2), an oil pump (4), an oil pump motor (5), a manual pump (6), a filter (8), a check valve (11), a normally open solenoid valve (12), a relief valve (13), a throttle valve (14), a normally closed solenoid valve (15), a proportional valve (16), an accumulator (17), an amplifier (19), a pressure gauge (20), and a check valve (22); the inlet of the manual pump (6) is connected to the oil tank (1) through the oil suction filter (2), and the outlet of the manual pump (6) is connected to the disc brake (10), the check valve (11), the normally open solenoid valve (12), the normally closed solenoid valve (15), the accumulator (17), the amplifier ( 19), and a pressure gauge (20); the inlet of the oil pump (4) is connected to the oil tank (1) through an oil suction filter (2); the outlet of the oil pump (4) is connected to the disc brake (10), the normally open solenoid valve (12), the normally closed solenoid valve (15), the accumulator (17), the amplifier (19), the pressure gauge (20), and the one-way valve (22) through a filter (8) and a one-way valve (11); both sides of the oil pump (4) are connected to the oil pump motor (5), and the oil pump motor (5) controls the oil pump (4); the other end of the normally open solenoid valve (12) is connected to the oil tank (1) through a relief valve (13) and a throttle valve (14); the other end of the normally closed solenoid valve (15) is connected to the oil tank (1) through a proportional valve (16).

10. The remote control method of the disc brake control device according to any one of claims 1 to 9, characterized in that: Step 1: Turn the knob SA1 of the electric control box to the right to start remote control. The centralized PLC control box sends a remote control signal to the electric control box, and the hydraulic pump station is controlled by the electric control box; Step 2: When the centralized control PLC control box remotely sends a brake release signal to the electric control box, the electric control box controls the contactor to close and the oil pump motor to start, and at the same time controls the normally open solenoid valve (12) to close when energized and the normally closed solenoid valve (15) to close when de-energized, and the oil pump motor (5) drives the oil pump (4) to work, outputs the hydraulic oil through the filter (8) to the one-way valve (11), and enters the oil chamber of the disc brake (10) through the one-way valve (11); Step 3: When the oil pressure in the oil chamber of the disc brake (10) rises to a set pressure, the electric control box controls the contactor to open, and the oil pump motor (5) and the oil pump (4) stop working; Step 4: When the oil pressure in the oil tank of the disc brake (10) drops below the backlash setting pressure, the electric control box controls the oil pump motor (5) to start, driving the oil pump (4) to work to supply fluid to the disc brake (10) to replenish the pressure. When the oil pressure in the oil chamber of the disc brake (10) reaches the setting pressure, the oil pump (4) is controlled to stop. Step 5: When the centralized control PLC control box remotely sends a flexible brake signal to the electric control box, the electric control box controls the normally open solenoid valve (12) to be energized to close and the normally closed solenoid valve (15) to be energized to open, the oil circuit on the normally closed solenoid valve (15) is opened, and the oil in the oil chamber of the disc brake (10) flows back to the oil tank through the normally closed solenoid valve (15) and the proportional valve (16), and the disc brake of the disc brake (10) is slowly tightened; Step 6: When the centralized control PLC control box remotely sends a rapid braking signal to the electric control box, the electric control box controls the normally open solenoid valve (12) to open when power is off and the normally closed solenoid valve (15) to close when power is off. The oil circuit on the normally open solenoid valve (12) is opened, and the oil in the oil chamber of the disc brake (10) quickly flows back to the oil tank (1) through the normally open solenoid valve (12). The oil pressure in the brake disc is reduced, and the disc brake of the disc brake (10) is quickly tightened.

11. The method for controlling a disc brake control device according to any one of claims 1 to 9, characterized in that: Step 1: Turn SA1 of the electric control box to the left, start the local control, and directly control the hydraulic pump station through the electric control box; Step 2: When the button SB1 on the electric control box is pressed, the brake release function is started, the electric control box controls the contactor to close, the oil pump motor (5) to start, and at the same time controls the normally open solenoid valve (12) to close when energized, and the normally closed solenoid valve (15) to close when de-energized. The oil pump motor (5) drives the oil pump (4) to work, and the hydraulic oil is output to the one-way valve (11) through the filter (8), and then enters the oil chamber of the disc brake (10) through the one-way valve (11); Step 3: When the oil pressure in the oil chamber of the disc brake (10) rises to a set pressure, the electric control box controls the contactor to open, and the oil pump motor (5) and the oil pump (4) stop; Step 4: When the oil pressure in the oil tank of the disc brake (10) drops below the backlash setting pressure, the electric control box controls the oil pump motor (5) to start, driving the oil pump (4) to work to supply fluid to the disc brake to compensate for the pressure. When the oil pressure in the oil chamber of the disc brake (10) reaches the setting pressure, the oil pump motor (5) and the oil pump (4) are controlled to stop working; Step 5: When the button SB3 on the electric control box is pressed, the soft brake function is started, the electric control box controls the normally open solenoid valve (12) to be energized to close, and the normally closed solenoid valve (15) to be energized to open, the oil circuit on the normally closed solenoid valve (15) is opened, and the oil in the oil chamber of the disc brake (10) flows back to the oil tank through the normally closed solenoid valve (15) and the proportional valve (16), and the disc brake of the disc brake (10) is slowly tightened; Step 6: When the button SB2 on the electric control box is pressed, the rapid braking function is started. The electric control box controls the normally open solenoid valve (12) to open when the power is off, and the normally closed solenoid valve (15) to close when the power is off. The oil circuit on the normally open solenoid valve (12) is opened, and the oil in the oil chamber of the disc brake (10) quickly flows back to the oil tank through the normally open solenoid valve (12). The oil pressure in the brake disc is reduced, and the disc brake of the disc brake (10) is quickly tightened.

12. The remote control method according to claim 11 or the local control method according to claim 12, characterized in that: Flexible braking is divided into two stages. In stage 1, the oil pressure in the disc brake oil chamber drops rapidly within the set stage 1 time, allowing the brake shoe to quickly fit the surface of the brake disc and reduce the idle travel time. In stage 2, the oil pressure in the disc brake oil chamber decreases slowly within the set stage 2 time until it is fully clamped.

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