RU2491598C1 - Centralised handle-control system for ac shuttle trolley - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: proposed device comprises manipulator part, control part and electrical actuator. Note here that manipulator part comprises control handle 1. Note also that control part includes controller 4 and bus insulation module 3. Electrical actuator comprises relay (KA4) for control over frequency traction inverter, relay (KA1) for control of oil pump motor, relay (KA2) for control over scraper conveyor, relay (KA3) for control over scraper conveyor reversing, relay (KA5, KA6) for illumination control, relay (KA7) for control of electric bell, lifting valve (YV1), lowering valve (YV2), turning valves (YV3, YV4) and frequency inverter (2).

EFFECT: higher efficiency in operation in coal mine.

6 cl, 2 dwg

Description

[0001] This application claims priority over Chinese Patent Application No. 200920248925.2, entitled "Centralized Control System Using the Handle for AC Shuttle Transport Trolley", filed with the State Intellectual Property Office of China on November 27, 2009. A full description thereof is included here by reference.

FIELD OF THE INVENTION

[0002] This application relates to the field of road excavation, mining and transportation in a coal mine, in particular, to a centralized control system with a handle that can be used for shuttle trolleys with alternating current traction in a coal mine.

BACKGROUND OF THE INVENTION

[0003] Currently, in the field of mining and transportation in a coal mine, a shuttle trolley is an important coal transportation equipment used in conjunction with a continuously operating coal combine as a mechanized mining equipment for short faces for a medium / powerful coal seam. The shuttle trolley is a trolley carrying coal for a short distance in the mine, and the transportation distance is less than 200 m. The main function of the shuttle trolley is to receive and accumulate coal produced by a continuously working combine in its body, then return to the feed crusher, and unload the coal by means of a scraper conveyor in its body to the crusher hopper and return after unloading coal to a continuously working coal processor for the next coal loading. Currently, the shuttle trolleys used in the coal mine are mainly imported equipment and are mainly shuttle trolleys with alternating current traction. This type of shuttle trolley is difficult to operate, the functions of its various systems are independent, and the shuttle trolley drive mechanisms are housed separately and thus are difficult to operate, requiring an experienced operator.

SUMMARY OF THE INVENTION

[0004] In accordance with an object of the present invention, there is provided a centralized control system with a handle that can be applied to an AC shuttle trolley in a coal mine to solve the problems of the known alternating current shuttle trolley, for example, the fact that various devices in the shuttle trolley manipulation system have independent functions and are placed separately, and the degree of intellectualization, integration and automation of shuttle trolleys does not ki, etc.

[0005] The technical solution to this application is as follows.

[0006] A centralized control system using a handle for a shuttle car with alternating current traction includes a manipulating part, a control part, and an electric actuating part. The manipulating part is provided with a handle for manipulation. The control part is equipped with a controller for the trolley and a bus isolation module. The electrical actuator is equipped with a control relay for the traction frequency converter, a control relay for the oil pump motor, a control relay for positive rotation of the scraper conveyor, a control relay for negative rotation of the scraper conveyor, a lighting control relay, a control relay for an electric bell, a lift valve, a lowering valve, steering valves and frequency converter. The handle is connected to the controller through the bus isolation module, and the valves, control relays, and the frequency converter of the electrical actuator are connected to the controller.

[0007] In a centralized control system using a handle for a shuttle car with alternating current traction, in accordance with this application, the handle is connected to the controller via a bus isolation module of the controller network.

[0008] In a centralized control system using a handle for a shuttle car with alternating current thrust, in accordance with this application, an intrinsically safe circuit is used in the manipulating part.

[0009] In a centralized control system using a handle for a shuttle car with alternating current traction, in accordance with the present application, the lowering valve and the lifting valve are fireproof electromagnetic on / off valves used in the shaft, and the steering valves are fireproof electromagnetic proportional valves, used in the mine.

[0010] In a centralized control system using a handle for a shuttle car with AC traction, in accordance with this application, a controller designed for the car, a bus isolation module, a control relay for the traction frequency converter, a control relay for the oil pump motor, a control relay for positive rotation of the scraper conveyor and control relays for negative rotation of the scraper conveyor installed inside the fireproof control box.

[0011] In a centralized control system using a handle for a shuttle car with alternating current traction, in accordance with the present application, the controller designed for the car is a programmable controller.

[0012] Advantageous effects of the present application include:

[0013] 1. The centralized control system using the handle for the shuttle car with AC traction, in accordance with the present application, can perform forward control, backward control, acceleration control and shuttle car deceleration control by operating the handle forward or back, it can steer the shuttle trolley by turning the knob to the right or left and can also perform lighting control, electric bell control, HAND into action and stop the oil pump motor and the positive and negative rotation of the scraper conveyor and the lifting and lowering control of the conveyor etc. trolleys by pressing buttons on the handle.

[0014] 2. The centralized control system using the handle for the shuttle car with alternating current traction, in accordance with the present application, can improve the degree of automation, intellectualization and integration of the shuttle car with alternating current traction and can achieve automated control of the shuttle car with traction on alternating current in the mine using the appropriate equipment connected to it, which may initiate the intellectualization of transportation in the mine.

[0015] 3. Compared with the conventional coal mine shuttle trolley manipulation system, the present application can perform forward control, rearward control, acceleration control, deceleration control and steering control of the shuttle trolley with just one handle, and can carry out lighting control, electric bell control, driving, stopping, positive rotation and negative rotation of the trolley engine by pressing the buttons on the handle ke. The centralized control system using the handle for the shuttle car with alternating current traction, in accordance with the present application, also has a high degree of integration and intellectualization, can be easily and conveniently operated, which reduces the problems of the previous shuttle car manipulation mechanism, such as that its manipulation mechanisms are complex, have independent functions and are housed separately, and are difficult to operate. The centralized management system, in accordance with this application, reduces the complexity for the driver and significantly increases the efficiency of operation.

[0016] 4. This application can be applied in an environment that contains explosive gas in a coal mine.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the present application; and

[0018] FIG. 2 is a software block diagram of the present application.

DETAILED DESCRIPTION

[0019] As shown in FIG. 1, a centralized control system using a handle for a shuttle car with alternating current thrust, in accordance with the present application, includes a manipulating part (handle), an electric control part, and an electric actuating part. The manipulating part is equipped with a handle SOB1 (JC6000). The electric control part is equipped with a U1 module (HL-CANIR-A01) for isolating the bus network of the controllers and a programmable controller U2 (SPN-C17). The electrical actuator is equipped with a steering valve YV3 (steering to the left), a steering valve YV4 (steering to the right), a lifting valve YV1, a lowering valve YV2, seven control relays, respectively, from KA1 to KA7 and a frequency converter U3. The connection ratios among these components are as follows: the SOB1 handle is connected to the U2 controller through the bus isolation module U1, the steering valve YV3, the steering valve YV4, the lift valve YV1, the lowering valve YV2, the seven control relays and the converter U3 are directly connected to the controller U2, respectively , so that the frequency controller U2 can directly control the valves, relays, and the frequency converter U3.

[0020] According to the present application, relays KA1-KA7 include: a control relay KA4 connected to a traction frequency converter, a control relay KA1 connected to an oil pump motor, a positive rotation control relay KA2 connected to a scraper conveyor, KA3 relay negative rotation control connected to the scraper conveyor, control relay KA5 connected to the trolley headlight, control relay KA6 connected to the trolley backlight, and control relay KA7 connected to the electric bell. KA5 and KA6 form a shuttle trolley lighting control relay.

[0021] In accordance with the present application, the steering valve YV3 (steering left) and the steering valve YV4 (steering right) connected to the shuttle car are used for steering the shuttle car steering, the lift valve YV1 (lift) and the valve Lowering (lowering) YV2, connected to the end of the scraper conveyor, are used to control the raising and lowering of the end of the conveyor.

[0022] In accordance with this application, the manipulating part uses an intrinsically safe circuit.

[0023] According to the present application, the lowering valve YV2 and the lifting valve YV1 are fireproof electromagnetic on-off valves used in the shaft, and the steering valves YV3 and YV4 are fireproof electromagnetic proportional valves used in the shaft.

[0024] According to the present application, a trolley controller U2, a bus isolation module U1, a control relay KA4 for a traction frequency converter, a control relay KA1 for an oil pump motor, a control relay KA2 for positive rotation of the scraper conveyor and a control relay KA3 for negative rotation scraper conveyor, all installed inside a fireproof control box.

[0025] The electrical control process of a centralized control system using a handle for a shuttle car with alternating current traction, in accordance with this application, is as follows:

[0026] The electrical control part uses the U2 controller to perform a number of important operations, for example, receiving signals, analyzing, computing and processing, etc. The handle mounted on the intrinsically safe manipulation box receives various information from the outside in real time. The offset by which the SOB1 knob is moved forward or backward is converted to a digital value in the range from 0 to 1000, and a group of on-off values is used to distinguish the front action from the rear action of the SOB1 knob. The offset by which the SOB1 knob rotates left or right is converted to a group of digital values in the range from 0 to 1000, and another group of on-off values is used to distinguish the left rotation from the right rotation of the SOB1 knob. The button information on the SOB1 handle is converted to another group of on-off values, and the converted information is transmitted to the U2 controller via the controller network bus. The controller U2 analyzes, calculates and processes the received information data. The controller U2 converts the digital value converted from the offset by which the knob SOB1 is moved forward or backward to a frequency signal that can be obtained with the frequency converter, and transmits the frequency signal to the frequency converter via the controller network so that the speed of the shuttle car is controlled by adjust the offset of the handle SOB1. The controller U2 additionally converts the digital value signal, converted from the offset by which the knob SOB1 is turned left or right, into a latitudinally modulated signal that can control the degree of opening of the steering valve, and drives the controller output ports based on the signals of the on-off values and controls the voltage on and / or turning off the voltage of the relay coils so as to control the output circuits and thus achieve control in the forward direction, control in the direction back, acceleration control, deceleration control and steering controls of the shuttle trolley. It is also possible to achieve lighting control, driving control, stopping, positive rotation and negative rotation of the engine, control of raising or lowering the conveyor, etc. trolleys by using the buttons on the handle SOB1.

[0027] As shown in FIG. 2, a software block diagram of the present application is as follows:

[0028] When the system is energized, the controller U2 first initializes various input ports, output ports, and communication ports to the controller network bus. After initialization is complete, the entire system is self-tested, and then it receives information data from the SOB1 knob via the controller network bus and analyzes and calculates the received data. Additionally, the controller U2 controls the actions of the output ports based on input from the SOB1 knob, thus achieving steering control, lighting control, electric bell control, control of driving and stopping the oil pump engine, control of positive rotation and negative rotation of the scraper conveyor, and control raising or lowering the conveyor, etc. trolleys. In the meantime, the controller U2 transmits the relevant information to the frequency converter via the controller network bus, and thus achieves forward control, backward control, acceleration control and shuttle trolley deceleration control.

[0029] As a result, the centralized control system using the handle for the shuttle car with alternating current traction, in accordance with the present application, can perform various control of the shuttle car simply by using the handle. The system is practical and easy to use and has a high degree of integration and intellectualization, which reduces the complexity for the driver and significantly increases work efficiency.

Claims (6)

1. Centralized control system with a handle for a shuttle car with traction on alternating current, characterized in that
a centralized control system with a handle contains a manipulating part, a control part and an electric actuating part, while
the manipulating part is provided with a handle;
the control part is equipped with a controller and a bus isolation module;
the electric actuating part is equipped with a control relay for the traction frequency converter, a control relay for the oil pump motor, a control relay for positive rotation of the scraper conveyor, a control relay for negative rotation of the scraper conveyor, a lighting control relay, a control relay for an electric bell, a lift valve, a lowering valve, steering valves and frequency converter; and
the handle is connected to the controller via the bus isolation module, and the lift valve, lowering valve, steering valves, control relays, and the frequency converter of the electrical actuator are connected to the controller, respectively. 2. The centralized control system using the handle for the shuttle trolley with alternating current traction according to claim 1, wherein the handle is connected to the controller via the bus network isolation module of the controllers. 3. A centralized control system with a handle for a shuttle car with alternating current traction according to claim 1, wherein the manipulating part uses an intrinsically safe circuit. 4. The centralized control system with the handle for the shuttle car with alternating current traction according to claim 1, wherein the lowering valve and the lifting valve are fireproof electromagnetic on / off valves used in the shaft, and the steering valves are fireproof electromagnetic proportional valves used in mine. 5. The centralized control system using the handle for the shuttle car with alternating current traction according to claim 1, wherein the controller, bus isolation module, control relay for the traction frequency converter, control relay for the oil pump motor, control relay for positive rotation of the scraper conveyor and control relays for negative rotation of the scraper conveyor are installed inside the fireproof control box. 6. A centralized control system with a handle for a shuttle car with alternating current thrust according to claim 1, wherein the controller is a programmable controller.

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