Electro-hydraulic control system for heading machine

Abstract

The utility model discloses an electro-hydraulic control system for a heading machine in the technical field of heading machines, which comprises a heading machine electric control box, a controller is arranged in an inner cavity of the heading machine electric control box, the controller is electrically connected with an industrial display, the controller is electrically connected with an electro-hydraulic proportional valve, and the electro-hydraulic proportional valve is electrically connected with the heading machine electric control box. The controller directly controls the electro-hydraulic proportional valve through can / canopen, the controller is electrically connected with an electro-hydraulic control operation box, an intrinsic safety operation box and a remote control receiver in sequence, and the remote control receiver is electrically connected with a remote control transmitter. A remote control transmitter, a remote control receiver and a controller placed in an electric cabinet are still adopted, a PWM driving module is arranged in the controller, the controller is connected with an electro-hydraulic proportional valve to achieve electro-hydraulic control, the controller needs one control line to drive each electromagnetic valve, installation is tedious, and the failure rate is high; and electro-hydraulic control is not expanded to an intrinsic safety operation box, so that the electro-hydraulic control is single in driving.

Description

Technical Field

[0001] The utility model relates to the technical field of tunneling machines, in particular to an electro-hydraulic control system for tunneling machines. Background Art

[0002] As the country's requirements for intelligent coal mining continue to increase, the intelligence level of tunneling equipment is also constantly improving, and the development of "electro-hydraulic control", a key technology for intelligent control of tunneling machines, has undoubtedly become a key link. At present, electro-hydraulic control of tunneling machines in the industry is mainly used for remote control systems.

[0003] However, the existing electro-hydraulic control system is applied to the remote control device, and still uses a remote control transmitter, a remote control receiver, and a controller placed in the electric control box. The controller has a built-in PWM drive module, which is connected to the electro-hydraulic proportional valve to realize electro-hydraulic control. The controller requires a control line for each solenoid valve drive, which is cumbersome to install and has a high failure rate. The electro-hydraulic control has not been expanded to the intrinsically safe operation box, and the electro-hydraulic control drive is single. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide an electro-hydraulic control system for a tunnel boring machine, which can solve the problem that the existing electro-hydraulic control system is applied to the remote control device, still adopts the remote control transmitter, the remote control receiver, and the controller placed in the electric control box, and the controller has a built-in PWM drive module, which is connected to the electro-hydraulic proportional valve to realize electro-hydraulic control. The controller requires one control line for each solenoid valve drive, which is cumbersome to install and has a high failure rate; and the electro-hydraulic control has not been extended to the intrinsically safe operating box, and the electro-hydraulic control drive is single.

[0006] In order to solve the above technical problems, the utility model provides an electro-hydraulic control system for a tunnel boring machine, adopting the following technical scheme: comprising an electric control box for the tunnel boring machine, a controller is provided in the inner cavity of the electric control box for the tunnel boring machine, the controller is electrically connected to an industrial display, the controller is electrically connected to an electro-hydraulic proportional valve, the controller directly controls the electro-hydraulic proportional valve through CAN / CANOPEN, the controller is electrically connected to an electro-hydraulic control operation box, an intrinsically safe operation box and a remote control receiver in sequence, and the remote control receiver is electrically connected to a remote control transmitter.

[0007] Optionally, the remote control receiver is equipped with a receiving antenna.

[0008] By adopting the above technical solution, the signal is received.

[0009] Optionally, the remote control transmitter is equipped with a transmitting antenna.

[0010] By adopting the above technical solution, the signal is transmitted.

[0011] Optionally, a fixing mechanism is provided at the bottom of the electric control box of the tunnel boring machine, and the fixing mechanism includes a fixing plate, a fixing groove is provided on the fixing plate, and a fixed motor is provided on the right side of the inner cavity of the fixing groove.

[0012] By adopting the above technical solution, a fixing mechanism is provided.

[0013] Optionally, a fixed screw is provided in the left power output section of the fixed motor, and the left side of the fixed screw is rotatably connected in the fixed groove. The fixed screw is a forward and reverse screw. Two groups of fixed slides are screwed on the fixed screw. The two groups of fixed slides are slidably connected in the fixed groove. A fixed top plate is provided on the top of the two groups of fixed slides, and mounting mechanisms are provided on both sides of the fixed plate.

[0014] By adopting the above technical solution, the two groups of fixed top plates are controlled to move closer to each other, and the electric control box of the tunnel boring machine is clamped and fixed.

[0015] Optionally, the mounting mechanism includes a mounting plate, the fixing plate is arranged at the bottom of one side of the fixing plate, and a mounting hole is opened on the mounting plate.

[0016] By adopting the above technical solution, the fixing plate is installed and fixed.

[0017] In summary, the utility model includes at least one of the following beneficial effects: the intrinsically safe operation box, electro-hydraulic control operation box, remote control receiver, and industrial display are connected to the controller via the Can / Canopen communication bus to form a stable and reliable communication network, which can realize precise control of the tunnel boring machine circuit and the electric proportional valve by remote control or the intrinsically safe operation box and electro-hydraulic control operation box, with lower communication delay, more timely action response, and less prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2This is a schematic diagram of the fixing mechanism structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing mechanism of the utility model.

[0022] Explanation of the reference numerals: 1. Electric control box of tunnel boring machine; 2. Controller; 3. Industrial display; 4. Electro-hydraulic proportional valve; 5. Electro-hydraulic control operation box; 6. Intrinsically safe operation box; 7. Remote control receiver; 8. Remote control transmitter; 9. Fixing mechanism; 901. Fixing plate; 902. Fixing groove; 903. Fixing motor; 904. Fixing screw; 905. Fixing slide plate; 906. Fixing top plate; 10. Mounting mechanism; 101. Mounting plate; 102. Mounting hole. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The utility model is described in further detail.

[0024] Embodiment 1, refer to Figure 1 In order to solve the problem that the existing electro-hydraulic control system is applied to the remote control device, in this embodiment, a remote control transmitter, a remote control receiver, and a controller placed in an electric control box are still used, and the controller has a built-in PWM drive module, which is connected to the electro-hydraulic proportional valve to realize electro-hydraulic control. The controller requires a control line for each solenoid valve drive, which is cumbersome to install and has a high failure rate; and the electro-hydraulic control is not extended to the intrinsically safe operation box, and the electro-hydraulic control drive is single. The utility model discloses an electro-hydraulic control system for a tunneling machine, including an electric control box 1 for the tunneling machine, a controller 2 is provided in the inner cavity of the electric control box 1 for the tunneling machine, an industrial display 3 is electrically connected to the controller 2, an electro-hydraulic proportional valve 4 is electrically connected to the controller 2, the controller 2 directly controls the electro-hydraulic proportional valve 4 through can / canopen, an electro-hydraulic control operation box 5, an intrinsically safe operation box 6 and a remote control receiver 7 are electrically connected to the controller 2 in sequence, and the remote control receiver 7 is electrically connected to a remote control transmitter 8.

[0025] Based on the above features, the working principle of this embodiment is: the controller 2 adopts an imported special controller with a protection level of IP67, which is an EPEC4602 controller produced by EPEC of Finland. The controller is based on a high-performance microprocessor, has rich data acquisition, control and communication interfaces and a built-in 2-way CAN communication module, which can simply and reliably realize the networking between devices in the system and the control of the electro-hydraulic proportional valve 4, and can work reliably in an environment with power grid fluctuations, dust, high vibration, wide temperature changes and humidity, and can be better suitable for the working environment of the tunnel boring machine. The industrial display 3 adopts the G070E-CAN industrial display produced by Shanghai Buke Automation Co., Ltd., the remote control device adopts the FYF100 remote control receiver and remote control transmitter produced by Anbell, the intrinsically safe operation box 6 adopts the ZK-TYCZX-5 intrinsically safe operation box produced by Weishi Heavy Industry Co., Ltd., and the electro-hydraulic control operation box 5 adopts the CXH1-12-V02 intrinsically safe electro-hydraulic control operation box produced by Weishi Heavy Industry Co., Ltd. The industrial display 3, the remote control receiver 7, the intrinsically safe operation box 6 and the electro-hydraulic control operation box 5 are connected via CANOpen The bus is connected to the controller 2, wherein the CANOpen bus is a field bus commonly used in industrial control, which can effectively realize the real-time and reliable transmission of remote control commands. The controller controls the electric proportional valve through Can / Canopen communication, and the electric proportional valve 4 feeds back the valve opening stroke to the controller 2 to realize closed-loop control, reduce hardware overhead, shorten effect time, and ensure safe and efficient production of the excavation working face.

[0026] Example 2, refer to Figure 2-3In order to solve the problem that the existing electro-hydraulic control system is applied to the remote control device, in this embodiment, a remote control transmitter, a remote control receiver, and a controller placed in the electric control box are still used, and the controller has a built-in PWM drive module, which is connected to the electro-hydraulic proportional valve to realize electro-hydraulic control. The controller requires a control line for each solenoid valve drive, which is cumbersome to install and has a high failure rate; and the electro-hydraulic control is not extended to the intrinsically safe operation box, and the electro-hydraulic control drive is single. Based on the same concept as the above-mentioned embodiment 1, the electro-hydraulic control system for the tunneling machine also includes a receiving antenna on the remote control receiver 7, a transmitting antenna on the remote control transmitter 8, and a fixing mechanism 9 is provided at the bottom of the tunneling machine electric control box 1. The fixing mechanism 9 includes a fixing plate 901, a fixing plate 902, and a fixing plate 903. A fixed groove 902 is provided on the fixed plate 901, and a fixed motor 903 is provided on the right side of the inner cavity of the fixed groove 902. A fixed screw rod 904 is provided on the left power output section of the fixed motor 903. The left side of the fixed screw rod 904 is rotatably connected in the fixed groove 902. The fixed screw rod 904 is a forward and reverse screw rod. Two groups of fixed slide plates 905 are screwed on the fixed screw rod 904. The two groups of fixed slide plates 905 are slidably connected in the fixed groove 902. A fixed top plate 906 is provided on the top of the two groups of fixed slide plates 905. Mounting mechanisms 10 are provided on both sides of the fixed plate 901. The mounting mechanism 10 includes a mounting plate 101. The fixed plate 901 is arranged at the bottom of one side of the fixed plate 901, and a mounting hole 102 is provided on the mounting plate 101.

[0027] Based on the above features, the working principle of this embodiment is: the electric control box 1 of the tunnel boring machine is placed between two groups of fixed top plates 906, and the fixed motor 903 can rotate forward and reverse when powered on. The control motor 903 is started to rotate forward, driving the control screw 904 to rotate, and the control screw 904 drives the two groups of control slides 905 to rotate. Under the limit of the control groove 902, the two groups of control slides 905 move closer to each other, and the two groups of control slides 905 respectively drive the two groups of control top plates 906 to move closer to each other, clamp and fix the electric control box 1 of the tunnel boring machine, insert bolts into the two groups of mounting holes 102 respectively, and tighten the two groups of bolts respectively to fix the two groups of mounting plates 101 to the ground, and install and fix the electric control box 1 of the tunnel boring machine.

[0028] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An electro-hydraulic control system for a roadheader, comprising an electric control box (1) for the roadheader, characterized in that: The inner cavity of the tunnel boring machine electric control box (1) is provided with a controller (2), the controller (2) is electrically connected to an industrial display (3), the controller (2) is electrically connected to an electro-hydraulic proportional valve (4), the controller (2) directly controls the electro-hydraulic proportional valve (4) via CAN / CANopen, the controller (2) is electrically connected in sequence to an electro-hydraulic control operation box (5), an intrinsically safe operation box (6) and a remote control receiver (7), and the remote control receiver (7) is electrically connected to a remote control transmitter (8).

2. The electro-hydraulic control system for a roadheader according to claim 1, characterized in that: The remote control receiver (7) is provided with a receiving antenna.

3. The electro-hydraulic control system for a roadheader according to claim 1, characterized in that: The remote control transmitter (8) is provided with a transmitting antenna.

4. The electro-hydraulic control system for a roadheader according to claim 1, characterized in that: A fixing mechanism (9) is provided at the bottom of the tunnel boring machine electric control box (1), the fixing mechanism (9) comprising a fixing plate (901), a fixing groove (902) is provided on the fixing plate (901), and a fixing motor (903) is provided on the right side of the inner cavity of the fixing groove (902).

5. The electro-hydraulic control system for a roadheader according to claim 4, characterized in that: A fixed screw rod (904) is provided at the left power output section of the fixed motor (903); the left side of the fixed screw rod (904) is rotatably connected in the fixed groove (902); the fixed screw rod (904) is a forward and reverse screw rod; two groups of fixed slide plates (905) are screwed onto the fixed screw rod (904); the two groups of fixed slide plates (905) are slidably connected in the fixed groove (902); fixed top plates (906) are provided at the tops of the two groups of fixed slide plates (905); and mounting mechanisms (10) are provided on both sides of the fixed plate (901).

6. The electro-hydraulic control system for a roadheader according to claim 5, characterized in that: The mounting mechanism (10) comprises a mounting plate (101), the fixing plate (901) is arranged at the bottom of one side of the fixing plate (901), and a mounting hole (102) is provided on the mounting plate (101).

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