Hydraulic support electric push rod electro-hydraulic control system

Abstract

The present invention discloses an electro-hydraulic control system for an electric push rod of a hydraulic support, comprising an electric handle, a remote controller, a controller and a main and standby power supply, wherein one end of the electric handle is connected to and installed with the controller, one end of the controller is connected to and installed with the main and standby power supply, and a remote controller is arranged on the outside of the controller; a remote controller transceiver is installed inside the controller, and the remote controller transceiver is connected with the remote controller through signals; the electro-hydraulic control system for the electric push rod of the hydraulic support retains traditional components and can realize remote control of the electro-hydraulic control; when in use, the controller is powered by the main and standby power supply, the controller is associated with the electric handle, and the purpose of electro-hydraulic control of the support can be achieved through control of the remote controller, the operation is convenient, and remote control of the electro-hydraulic control can be realized; and the electric handle has relatively low requirements on the quality of the emulsion, which can reduce the cost; and after damage, only the electric handle of the reversing valve needs to be partially replaced, and the maintenance cost is low.

Description

Technical Field

[0001] The invention relates to the field of mining equipment, in particular to an electric hydraulic control system for an electric push rod of a hydraulic support. Background Art

[0002] At present, the requirements for comprehensive mining of coal mines are getting higher and higher. Not only the automated control is pursued, but also the automated production management is required. In this context, the electro-hydraulic control system of hydraulic support came into being. This technology is the most advanced means of comprehensive mining of coal mines. This technology integrates advanced technologies such as mechanics, electronics, and hydraulics, and has made a breakthrough in underground coal mining technology.

[0003] The reversing valve is one of the three main control components of the hydraulic support, and it is also the valve component with the largest number of requirements in the hydraulic support. It is used in groups according to functional requirements. The reversing valve group is mainly used to change the flow direction of the working medium, thereby controlling the action of the hydraulic actuator. It is mainly used for the reversing of the upper and lower chambers of the column and jack cylinder on the hydraulic support, that is, to control the extension, retraction or stop of the hydraulic cylinder piston rod to achieve functions such as raising the frame, lowering the frame, moving the frame, and maintaining pressure. With the rapid development of heavy-duty, fast, efficient and high-end hydraulic supports, higher requirements are placed on the reversing valve of the hydraulic support. The mainstream reversing valve of the hydraulic support mainly adopts a composite valve core structure and a contact seal. According to functional requirements, multiple pieces are combined into a reversing valve group for use. The reversing valve has problems such as leakage, poor anti-pollution ability and poor maintainability; the traditional electro-hydraulic control has very high requirements on the quality of the emulsion, which leads to high production costs; and when the electro-hydraulic control system is damaged, the entire system needs to be replaced, and the maintenance cost is high. Therefore, it is necessary to design an electro-hydraulic control system for hydraulic support electric push rods. Summary of the invention

[0004] The purpose of the present invention is to provide an electro-hydraulic control system for an electric push rod of a hydraulic support, which retains traditional components and can realize remote control of the electro-hydraulic control; when in use, the controller is powered by a main and standby power supply, and the controller is associated with an electric handle, and the purpose of electro-hydraulic control of the support can be achieved through remote control. The operation is convenient and remote control of the electro-hydraulic control can be realized; and the electric handle has relatively low requirements on the quality of the emulsion, which can reduce costs; and, after damage, only the electric handle of the reversing valve needs to be partially replaced, and the maintenance cost is low.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] The electric hydraulic control system of the electric push rod of the hydraulic support includes an electric handle, a remote control, a controller and a main and standby power supply. One end of the electric handle is connected to and installed with the controller, one end of the controller is connected to and installed with the main and standby power supply, and a remote control is arranged on the outside of the controller.

[0007] As a further solution of the present invention: a remote control transceiver is installed inside the controller, and the remote control transceiver is connected to the remote control via a signal.

[0008] As a further solution of the present invention: the electric handle includes a hydraulic valve body, a second rotating shaft, a fixing hole, a flameproof cavity, a motor, a control board, a coupling, a first mounting groove, a transmission, a second mounting groove, a cam, a valve body pressing block and a gear. A flameproof cavity is provided inside the hydraulic valve body, a motor is bolted on the inner walls on both sides of the flameproof cavity, a control board is fixedly installed on the inner wall of the flameproof cavity on one side of the motor, a coupling is fixedly installed on one end of the motor output shaft, a first mounting groove is provided inside the hydraulic valve body on one side of the flameproof cavity, a transmission is installed inside the first mounting groove, a second mounting groove is provided on the outer wall of the bottom end of the hydraulic valve body, a second rotating shaft is installed on the inner walls on both sides of the second mounting groove, a gear is sleeved and fixedly installed on the outer wall of the second rotating shaft located inside the second mounting groove, a cam is sleeved and fixedly installed on the outer wall of the second rotating shaft located on one side of the gear, and valve body pressing blocks are fixedly installed on the inner walls on both sides of the cam in the second mounting groove.

[0009] An explosion-proof wiring pipe is fixed on one side outer wall of the hydraulic valve body corresponding to the control panel bolts.

[0010] As a further solution of the present invention: there are two valve body pressing blocks.

[0011] As a further solution of the present invention: the hydraulic valve body is an explosion-proof housing.

[0012] As a further solution of the present invention: a third installation groove is provided on an outer wall of one side of the hydraulic valve body, and a positioner is installed inside the third installation groove.

[0013] As a further solution of the present invention: a protective cover is bolted to one side outer wall of the hydraulic valve body corresponding to the first mounting groove.

[0014] As a further solution of the present invention: fixing holes are distributed on the outer wall of the bottom end of the hydraulic valve body, and the number of the fixing holes is four.

[0015] The beneficial effects of the present invention are as follows: the hydraulic support electric push rod electro-hydraulic control system retains traditional components and can realize remote control of electro-hydraulic control; when in use, the controller is powered by the main and standby power supplies, and the controller is associated with the electric handle, and the purpose of electro-hydraulic control of the support can be achieved through remote control, which is easy to operate and can realize remote control of the electro-hydraulic control; and the electric handle has relatively low requirements on the quality of the emulsion, which can reduce costs; and, after damage, only the reversing valve electric handle needs to be partially replaced, and the maintenance cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the electric hydraulic control system of the electric push rod of the present invention;

[0018] Figure 2 This is a front cutaway view of the electric handle of the present invention;

[0019] Figure 3 This is a three-dimensional view of the electric handle of the present invention;

[0020] In the figure: 1. electric handle; 11. hydraulic valve body; 12. second rotating shaft; 13. fixing hole; 14. explosion-proof chamber; 15. motor; 16. control board; 17. explosion-proof wiring pipe; 18. coupling; 19. first mounting groove; 110. transmission; 111. second mounting groove; 112. cam; 113. valve body pressure block; 114. positioner; 115. third mounting groove; 116. gear; 117. protective cover; 2. remote control; 3. controller; 4. main and standby power supplies. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, the electric hydraulic control system of the electric push rod of the hydraulic support includes an electric handle 1, a remote controller 2, a controller 3 and a main and standby power supply 4. One end of the electric handle 1 is connected to and installed with the controller 3, and one end of the controller 3 is connected to and installed with the main and standby power supply 4. The remote controller 2 is arranged outside the controller 3; a remote controller transceiver is installed inside the controller 3, and the remote controller transceiver is connected with the remote controller 2 through a signal, which is convenient for signal connection; the main and standby power supply 4 supplies power to the controller 3, and the controller 3 is associated with the electric handle 1, and the purpose of supporting electro-hydraulic control can be achieved by controlling the remote controller 2;

[0023] The electric handle 1 includes a hydraulic valve body 11, a second rotating shaft 12, a fixing hole 13, a flameproof chamber 14, a motor 15, a control board 16, a coupling 18, a first mounting groove 19, a transmission 110, a second mounting groove 111, a cam 112, a valve body pressing block 113 and a gear 116. The flameproof chamber 14 is opened inside the hydraulic valve body 11, and the motor 15 is bolted to the inner walls on both sides of the flameproof chamber 14. The control board 16 is fixedly installed on the inner wall of the flameproof chamber 14 on one side of the motor 15, and the coupling 18 is fixedly installed on one end of the output shaft of the motor 15. The hydraulic valve body A first mounting groove 19 is provided on the inner part of the explosion-proof chamber 14 on one side, a transmission 110 is installed on the inner part of the first mounting groove 19, a second mounting groove 111 is provided on the outer wall of the bottom end of the hydraulic valve body 11, a second rotating shaft 12 is installed on the inner walls on both sides of the second mounting groove 111, a gear 116 is sleeved and fixed on the outer wall of the second rotating shaft 12 located inside the second mounting groove 111, a cam 112 is sleeved and fixed on the outer wall of the second rotating shaft 12 located on one side of the gear 116, and a valve body pressing block 113 is installed and fixed on the inner walls on both sides of the cam 112 of the second mounting groove 111.

[0024] An explosion-proof wiring pipe 17 is bolted to the outer wall of one side of the hydraulic valve body 11 corresponding to the control panel 16;

[0025] There are two valve body pressing blocks 113;

[0026] The hydraulic valve body 11 is an explosion-proof housing;

[0027] A third installation groove 115 is provided on one side outer wall of the hydraulic valve body 11, and a positioner 114 is installed inside the third installation groove 115;

[0028] A protective cover 117 is bolted to the outer wall of one side of the hydraulic valve body 11 corresponding to the first mounting groove 19;

[0029] The outer wall of the bottom end of the hydraulic valve body 11 is provided with four fixing holes 13;

[0030] The motor 15 is fixed in the flameproof chamber 14. The torque output by the rotating shaft of the motor 15 passes through the transmission 110 in the first mounting groove 19. After the transmission 110 changes direction and slows down, the torque is output to the cam 112. The cam 112 is connected to a positioner 114. The sensor signal is connected to the motor 15 control control board 16 in the flameproof chamber 14. The control board 16 controls the output direction and number of rotations of the motor 15, so that the cam 112 can only rotate to 13 positions: left side compression, horizontal, right side compression. The cam 112 transmits the pressure to the hydraulic valve button through the valve body pressure block 113 to realize the control of the hydraulic valve reversal or stop.

[0031] The working principle of the present invention is as follows: the main and standby power supplies 4 are connected to the controller 3 so that the controller 3 supplies power to the main and standby power supplies 4, and then the electric handle 1 and the main and standby power supplies 4 are connected through explosion-proof wires so that the main and standby power supplies 4 are associated with the electric handle 1, and a signal is generated through the remote controller 2 so that the main and standby power supplies 4 receive the signal through the remote controller transceiver, thereby the electric handle 1 can achieve the purpose of electro-hydraulic control of the bracket through the explosion-proof wire, and the electric handle 1 has relatively low requirements on the quality of the emulsion, which can reduce the cost; moreover, only the reversing valve electric handle 1 needs to be partially replaced after damage, and the maintenance cost is low.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The electric hydraulic control system of the hydraulic support electric push rod is characterized by: The device comprises an electric handle (1), a remote controller (2), a controller (3) and a main and standby power supply (4), wherein one end of the electric handle (1) is connected to and installed with the controller (3), one end of the controller (3) is connected to and installed with the main and standby power supply (4), and the remote controller (2) is arranged outside the controller (3); The electric handle (1) comprises a hydraulic valve body (11), a second rotating shaft (12), a fixing hole (13), a flameproof chamber (14), a motor (15), a control board (16), a coupling (18), a first mounting groove (19), a transmission (110), a second mounting groove (111), a cam (112), a valve body pressing block (113) and a gear (116). The hydraulic valve body (11) is provided with a flameproof chamber (14) inside, the motor (15) is bolted to the inner walls on both sides of the flameproof chamber (14), the control board (16) is fixedly mounted on the inner wall of the flameproof chamber (14) on one side of the motor (15), the coupling (18) is fixedly mounted on one end of the output shaft of the motor (15), and the A first mounting groove (19) is provided on the inner side of the hydraulic valve body (11) located on one side of the explosion-proof chamber (14); a transmission (110) is installed on the inner side of the first mounting groove (19); a second mounting groove (111) is provided on the outer wall at the bottom end of the hydraulic valve body (11); a second rotating shaft (12) is installed on the inner walls on both sides of the second mounting groove (111); a gear (116) is sleeved and fixedly connected to the outer wall of the second rotating shaft (12) located inside the second mounting groove (111); a cam (112) is sleeved and fixedly connected to the outer wall of the second rotating shaft (12) located on one side of the gear (116); and valve body pressing blocks (113) are installed and fixedly connected to the inner walls on both sides of the cam (112) of the second mounting groove (111).

2. The hydraulic support electric push rod electro-hydraulic control system according to claim 1, characterized in that: An explosion-proof wiring pipe (17) is bolted to an outer wall of one side of the hydraulic valve body (11) corresponding to the control panel (16).

3. The electric hydraulic control system of the hydraulic support electric push rod according to claim 1 is characterized in that: A remote control transceiver is installed inside the controller (3), and the remote control transceiver is connected to the remote control (2) via a signal.

4. The hydraulic support electric push rod electro-hydraulic control system according to claim 1, characterized in that: There are two valve body pressing blocks (113).

5. The electric hydraulic control system of the hydraulic support electric push rod according to claim 1 is characterized in that: The hydraulic valve body (11) is an explosion-proof housing.

6. The hydraulic support electric push rod electro-hydraulic control system according to claim 1, characterized in that: A third installation groove (115) is provided on an outer wall of one side of the hydraulic valve body (11), and a positioner (114) is installed inside the third installation groove (115).

7. The hydraulic support electric push rod electro-hydraulic control system according to claim 1, characterized in that: A protective cover (117) is bolted to an outer wall of one side of the hydraulic valve body (11) corresponding to the first mounting groove (19).

8. The hydraulic support electric push rod electro-hydraulic control system according to claim 1, characterized in that: The outer wall of the bottom end of the hydraulic valve body (11) is provided with fixing holes (13) distributed thereon, and the number of the fixing holes (13) is four.

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