Vehicle-mounted cable winding and unwinding control system for coal mine

Abstract

The invention provides a vehicle-mounted cable winding and unwinding control system for a coal mine, belongs to the technical field of underground operation of the coal mine, can be suitable for various cable winding and unwinding mechanisms on an underground explosion-proof transport vehicle of the coal mine, and can realize collection and recovery of underground cables and other cables. According to the underground cable winding, arranging and releasing device, the cable is orderly arranged in the recycling process and conveyed when the cable is laid at a high position, mechanical, electric, hydraulic and gas orderly coordinated control is achieved, various control and protection are innovatively achieved, the underground cable winding, arranging and releasing efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of underground coal mine operations, and specifically discloses a vehicle-mounted winding and discharging cable control system for coal mines. Background Art

[0002] Cables are the main power supply system for underground coal mining equipment. Existing cables are basically manually wound and laid during transportation, recycling and laying. This is not only inefficient but also labor-intensive, and there are certain safety hazards.

[0003] Existing technologies such as CN116750591A discloses an automatic cable retracting device and a coal mine underground operation vehicle, CN220376018U discloses a cable arrangement mechanism and a cable retracting vehicle, and CN117509296A discloses an intelligent cable conveyor and a joint control system, etc., which mostly focus on the research and development of mechanical structures. The above patents can solve the cable retracting, arrangement and transportation from a mechanical level, but the automation of the machinery also requires the cooperation of relevant control systems. At present, there is no complete control system that can realize the automation of the vehicle-mounted cable reeling and discharging mechanism for coal mines. Summary of the invention

[0004] The invention provides a vehicle-mounted cable winding and discharging control system for coal mines, which cooperates with a mechanical structure to realize the automation of cable discharging, cable sending, winding recovery and cable discharging.

[0005] The above-mentioned vehicle-mounted cable winding and discharging control system for coal mines includes a variable pump, an electronically controlled proportional multi-way valve, an electromagnetic reversing valve III, a shuttle valve I, a cable drum drive valve group, an electromagnetic reversing valve I, an electromagnetic reversing valve II, a cable discharging motor, a cable conveying motor I and a cable conveying motor II; the electronically controlled proportional multi-way valve includes a plurality of electromagnetic reversing valve cores, the P ports of the plurality of electromagnetic reversing valve cores are connected to the P ports of the electronically controlled proportional multi-way valve, the T ports of the plurality of electromagnetic reversing valve cores are connected to the T ports of the electronically controlled proportional multi-way valve, the A port of each electromagnetic reversing valve core is connected to the corresponding A port of the electronically controlled proportional multi-way valve, and the B port of each electromagnetic reversing valve core is connected to the corresponding B port of the electronically controlled proportional multi-way valve; the cable drum drive valve group integrates a one-way balancing valve I and a one-way balancing valve. Valve II, cable drum drive motor and brake, the A port of the cable drum drive valve group is connected to the oil inlet of the one-way balance valve I and the control port of the one-way balance valve II, the oil outlet of the one-way balance valve I and the A port of the cable drum drive motor are connected to the A' port of the cable drum drive valve group, the B port of the cable drum drive valve group is connected to the oil inlet of the one-way balance valve II and the control port of the one-way balance valve I, the oil outlet of the one-way balance valve II and the B port of the cable drum drive motor are connected to the B' port of the cable drum drive valve group, the oil drain port of the cable drum drive motor is connected to the O port of the cable drum drive valve group, the brake is connected to the cable drum drive motor, and the brake release oil port is connected to the L port of the cable drum drive valve group; The cable drum drive motor is used to drive the cable drum to rotate; the oil outlet of the variable pump is connected to the P port of the electric control proportional multi-way valve; the A1 port and B1 port of the electric control proportional multi-way valve are respectively connected to the A port and B port of the cable drum drive valve group, and the M port is connected to the P port of the electromagnetic reversing valve III; the A port of the electromagnetic reversing valve III is blocked, the B port is connected to the 2 port of the shuttle valve I, and the T port is connected back to the oil tank; under normal conditions, the P port of the electromagnetic reversing valve III is connected to the A port, and the B port is connected to the T port. After reversing, the P port is connected to the B port, and the A port is connected to the T port; the 3 port of the shuttle valve I is connected to the L port of the cable drum drive valve group; the A4 port of the electric control proportional multi-way valve is connected to the P1 port of the electromagnetic reversing valve I, and the A1 port of the electromagnetic reversing valve I is connected to the A port of the cable motor The B port of the cable conveying motor is connected to the A2 port of the electromagnetic reversing valve II, the P2 port of the electromagnetic reversing valve II is connected to the B4 port of the electric controlled proportional multi-way valve, the B1 port of the electromagnetic reversing valve I and the B2 port of the electromagnetic reversing valve II are blocked, and the T1 port of the electromagnetic reversing valve I and the T2 port of the electromagnetic reversing valve II are connected back to the oil tank; the cable conveying motor is used to drive the cable conveying machine to perform linear reciprocating motion; the A5 port of the electric controlled proportional multi-way valve is connected to the A1 port of the cable conveying motor I, the B1 port of the cable conveying motor I is connected to the A2 port of the cable conveying motor II, and the B2 port of the cable conveying motor II is connected to the B5 port of the electric controlled proportional multi-way valve; the cable conveying motor I and the cable conveying motor II are used to synchronously drive the two tracks to rotate.

[0006] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also includes a manual reversing valve and a manual cable winding control valve; the manual cable winding control valve includes an end cover Ⅰ, a valve body, an O-ring Ⅰ, a valve core Ⅰ, an O-ring Ⅱ, a spring Ⅰ, an end cover Ⅱ, a spring Ⅱ, an O-ring Ⅲ, a valve core Ⅱ, an O-ring Ⅳ and an O-ring Ⅴ; a valve core cavity Ⅰ and a valve core cavity Ⅱ are arranged in the valve body, the valve core cavity Ⅰ is connected with the A1 port and the B1 port on the side wall of the valve body, the valve core cavity Ⅰ and the valve core cavity Ⅱ are connected through the A2 port, and the valve core cavity Ⅱ is connected with the B2 port on the side wall of the valve body; the end cover Ⅰ and the end cover Ⅱ are installed at both ends of the valve body, and an O-ring Ⅴ is installed between the end cover Ⅰ and the valve body; the end cover Ⅰ is provided with an oil port K1 which is interconnected Port and oil port K2 port, air vent C1 port and air vent C2 port are arranged on end cover II, ports K1 and C1 port are communicated with valve core chamber I, ports K2 and C2 port are communicated with valve core chamber II; valve core I is installed in valve core chamber I, valve core I includes valve core section Ia, valve core section Ib, valve core section Ic and valve core section Id, O-type sealing ring I is sleeved on valve core section Ia and is in sealing contact with valve core chamber I, O-type sealing ring II is sleeved on valve core section Ic and is in sealing contact with valve core chamber I, spring I is sleeved on valve core section Id and its two ends are respectively connected with end cover II and valve core section Ic, O-type sealing ring I blocks the connection between port K1 and port A1, O-type sealing ring II blocks port B1 and chamber K3 where valve core section Id is located The valve core II is installed in the valve core cavity II, and the valve core II includes valve core section IIa, valve core section IIb, valve core section IIc and valve core section IId. The O-ring IV is set on the valve core section IIa and is in sealing contact with the valve core cavity II. The O-ring III is set on the valve core section IIc and is in sealing contact with the valve core cavity II. The spring II is set on the valve core section IId and its two ends are respectively connected to the end cover II and the valve core section IIc. The O-ring IV blocks the connection between the K2 port and the A2 port, and the O-ring III blocks the connection between the B2 and the K4 cavity of the cavity where the valve core section II is located; the P port of the manual reversing valve is connected to the M port of the electric proportional multi-way valve, the A port is connected to the K1 port of the manual cable control valve, the B port is blocked, and the T port is connected to the return oil box; the A1 port of the manual cable winding control valve is connected to the A' port of the cable winding drive valve group, the B1 port is connected back to the oil tank, the B2 port is connected to the B' port of the cable winding drive valve group, and the K2 port is connected to the 1 port of the shuttle valve Ⅰ; under the normal state of the manual reversing valve, the P port is connected to the B port, the A port is connected to the T port, the valve core Ⅰ and the valve core Ⅱ move toward the end cover Ⅰ under the action of the spring Ⅰ and the spring Ⅱ, and the connection between the A1 port and the B1 port and the connection between the A2 port and the B2 port in the manual cable winding control valve is blocked; after the manual reversing valve is reversed, the P port is connected to the A port, the B port is connected to the T port, the valve core Ⅰ and the valve core Ⅱ move toward the end cover Ⅱ under the action of the hydraulic oil, and the A1 port and the B1 port in the manual cable winding control valve are connected, and the A2 port and the B2 port are connected.

[0007] The above-mentioned vehicle-mounted cable winding and discharging control system for coal mines also includes a stroke control switch; two sets of stroke control switches are located at both ends of the cable discharging machine's moving track; the electromagnetic reversing valve I and the electromagnetic reversing valve II are switched according to the signals of the corresponding stroke control switches.

[0008] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also includes a shuttle valve II, a hydraulically controlled reversing valve, a pressure reducing valve and a clamping cylinder; port 2 of the shuttle valve II is connected between port A5 of the electrically controlled proportional multi-way valve and port A1 of the cable conveying motor I, port 1 is connected between port B2 of the cable conveying motor II and port B5 of the electrically controlled proportional multi-way valve, and port 3 is connected to port K of the hydraulically controlled reversing valve; port P of the hydraulically controlled reversing valve is connected to port P of the electrically controlled proportional multi-way valve, port A is blocked, port B is connected to the inlet of the pressure reducing valve, and port T is connected back to the oil tank; under normal conditions, port P of the hydraulically controlled reversing valve is connected to port A, and port B is connected to port T, and after reversing, port P is connected to port B, and port A is connected to port T; the outlet of the pressure reducing valve is connected to the rodless chamber of the clamping cylinder; the clamping cylinder is used to drive the movable track to approach or move away from the fixed track.

[0009] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also includes a balancing valve group I and a cable drum lifting cylinder; the balancing valve group I integrates a one-way balancing valve III and a one-way balancing valve IV, the A port of the balancing valve group I is connected to the oil inlet of the one-way balancing valve III and the control port of the one-way balancing valve IV, the oil outlet of the one-way balancing valve III is connected to the A' port of the balancing valve group I, the B port of the balancing valve group I is connected to the oil inlet of the one-way balancing valve IV and the control port of the one-way balancing valve III, and the oil outlet of the one-way balancing valve IV is connected to the B' port of the balancing valve group I; the A2 port and the B2 port of the electronically controlled proportional multi-way valve are respectively connected to the A port and the B port of the balancing valve group I, the A' port of the balancing valve group I is connected to the rodless cavity of the cable drum lifting cylinder, and the B' port of the balancing valve group I is connected to the rod cavity of the cable drum lifting cylinder; the cable drum lifting cylinder is used to drive the cable drum support frame to rotate around the hinge point of the vehicle frame and the cable drum support frame.

[0010] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also includes an electromagnetic reversing valve IV and a support cylinder; the P port of the electromagnetic reversing valve IV is connected to the M port of the electronically controlled proportional multi-way valve, the A port is connected to the rodless chamber of the support cylinder, the B port is connected to the rod chamber of the support cylinder, and the T port is connected back to the oil tank; the P port of the electromagnetic reversing valve IV is blocked under normal conditions, and the A port, the B port and the T port are connected. After reversing, the P port is connected to the A port, and the B port is connected to the T port; the support cylinder is located in the retractable support column, and controls the retractable support column to retract and support the cable drum support frame.

[0011] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also includes a balancing valve group II and a cable discharge arm lifting cylinder; the balancing valve group II integrates a one-way balancing valve V and a one-way balancing valve VI, the A port of the balancing valve group II is connected to the oil inlet of the one-way balancing valve V and the control port of the one-way balancing valve VI, the oil outlet of the one-way balancing valve V is connected to the A' port of the balancing valve group II, the B port of the balancing valve group II is connected to the oil inlet of the one-way balancing valve VI and the control port of the one-way balancing valve V The oil outlet of the one-way balancing valve VI is connected to the B' port of the balancing valve group II; the A3 port and B3 port of the electric control proportional multi-way valve are respectively connected to the A port and B port of the balancing valve group II, the A' port of the balancing valve group II is connected to the rodless cavity of the cable arm lifting cylinder, and the B' port of the balancing valve group II is connected to the rod cavity of the cable arm lifting cylinder; the cable arm lifting cylinder is used to drive the cable arm to rotate around the cable drum support frame and the hinge point of the cable arm.

[0012] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also includes a cable pressing cylinder; the A6 port and B6 port of the electronically controlled proportional multi-way valve are respectively connected to the rod chamber and rodless chamber of the cable pressing cylinder; the cable pressing cylinder is used to drive the cable pressing bracket to rotate around the hinge point of the cable drum support frame and the cable pressing bracket.

[0013] The above-mentioned vehicle-mounted winding and discharging cable control system for coal mines also includes an air source, an emergency stop button I, an emergency stop button II and an air-controlled oil shut-off valve; the air source is connected to port 1 of the emergency stop button I, port 2 of the emergency stop button I is connected to port 1 of the emergency stop button II, and port 2 of the emergency stop button II is connected to port Z of the air-controlled oil shut-off valve; port P of the air-controlled oil shut-off valve is connected to LS of the electronically controlled proportional multi-way valve, port A is blocked, port B is connected to port X of the variable pump, and port T is connected back to the oil tank; under normal circumstances, port 1 and port 2 of the emergency stop button I are connected, port 1 and port 2 of the emergency stop button II are connected, port P of the air-controlled oil shut-off valve is connected to port B, and port A is connected to port T; after the emergency stop button I and the emergency stop button II are switched, port 2 and port 3 are connected, and the air-controlled oil shut-off valve is switched so that port P is connected to port A, and port B is connected to port T.

[0014] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also includes a filter and a safety valve; the variable pump is installed at the output end of the torque converter, and the oil outlet is connected to the P port of the electronically controlled proportional multi-way valve after passing through the filter and the safety valve; the electromagnetic reversing valve III is also provided with an emergency button for reversing.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) It integrates cable winding, cable arrangement and cable laying, and can be used in different occasions in coal mines;

[0017] 2) The manual cable drum rotation function is innovatively designed to achieve fine adjustment of the cable drum;

[0018] 3) The cable arrangement protection function is innovatively designed, and a travel control switch is set at the end of the cable arrangement to avoid cable arrangement confusion caused by misoperation during the cable arrangement process;

[0019] 4) The automatic lifting and locking of the cable drum support frame ensures the reliable locking of the cable drum at different heights;

[0020] 5) The emergency stop of the cable drum in an emergency state greatly improves the operation safety;

[0021] In summary, the present invention can be applied to various cable winding and releasing mechanisms on explosion-proof transport vehicles in coal mines, can realize the collection and recovery of underground cables and other cables, orderly cable laying during the recovery process, and cable delivery when the cables are laid at high altitudes, realize orderly coordinated control of machinery, electricity, liquid, and gas, innovatively realize various controls and protections, improve the efficiency of winding, laying, and releasing underground cables, and reduce the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is the hydraulic principle diagram of the vehicle-mounted cable winding and discharge control system for coal mines (the manual cable winding control valve does not provide pressure);

[0024] Figure 2 This is the status diagram of the manual cable control valve when pressure is applied.

[0025] In the figure: 1- variable pump, 2- filter, 3- safety valve, 4- pneumatic oil cut-off valve, 5- electric proportional multi-way valve, 6- electromagnetic reversing valve III, 7- manual reversing valve, 8- manual cable control valve, 8.1- end cover I, 8.2- valve body, 8.3- O-type sealing ring I, 8.4- valve core I, 8.5- O-type sealing ring II, 8.6- spring I, 8.7- end cover II, 8.8- spring II, 8.9- O-type sealing ring III, 8.10- valve core II, 8.11- O-type sealing ring IV, 8.12- O-type sealing ring V, 9- cable reel drive valve group, 9.1- one-way balancing valve I, 9.2- one-way , 9.3-cable drum drive motor, 9.4-brake, 10-shuttle valve I, 11-cable drum lifting cylinder, 12-cable arm lifting cylinder, 13.1-electromagnetic reversing valve I, 13.2-electromagnetic reversing valve II, 14-cable motor, 15-cable conveying motor I, 16-cable conveying motor II, 17-cable pressing cylinder, 18-air source, 19-emergency stop button I, 20-emergency stop button II, 21-electromagnetic reversing valve IV, 22-support cylinder, 23-shuttle valve II, 24-hydraulic controlled reversing valve, 25-pressure reducing valve, 26-clamping cylinder, 27-balancing valve group I, 28-balancing valve group II. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present embodiment provides a vehicle-mounted cable winding and discharging control system for coal mines, including a variable pump 1, a filter 2, a safety valve 3, an air-controlled oil shut-off valve 4, an electronically controlled proportional multi-way valve 5, an electromagnetic reversing valve III6, a manual reversing valve 7, a manual cable winding control valve 8, a cable drum drive valve group 9, a shuttle valve I10, a cable drum lifting cylinder 11, a cable arrangement arm lifting cylinder 12, an electromagnetic reversing valve I13.1, an electromagnetic reversing valve II13.2, a cable arrangement motor 14, a cable conveying motor I15, a cable conveying motor II16, a cable pressing cylinder 17, an air source 18, an emergency stop button I19, an emergency stop button II20, an electromagnetic reversing valve IV21, a support cylinder 22, a shuttle valve II23, a hydraulically controlled reversing valve 24, a pressure reducing valve 25, a clamping cylinder 26, a balancing valve group I27 and a balancing valve group II28.

[0028] The electrically controlled proportional multi-way valve 5 includes multiple electromagnetic reversing valve cores, the P ports of the multiple electromagnetic reversing valve cores are connected to the P port of the electrically controlled proportional multi-way valve, the T ports of the multiple electromagnetic reversing valve cores are connected to the T port of the electrically controlled proportional multi-way valve, the A port of each electromagnetic reversing valve core is connected to the corresponding A port of the electrically controlled proportional multi-way valve, and the B port of each electromagnetic reversing valve core is connected to the corresponding B port of the electrically controlled proportional multi-way valve; in this embodiment, the electrically controlled proportional multi-way valve 5 is a six-way proportional reversing valve.

[0029] The cable drum drive valve group 9 integrates a one-way balance valve I 9.1, a one-way balance valve II 9.2, a cable drum drive motor 9.3 and a brake 9.4. The A port of the cable drum drive valve group 9 is connected to the oil inlet of the one-way balance valve I 9.1 and the control port of the one-way balance valve II 9.2. The oil outlet of the one-way balance valve I 9.1 and the A port of the cable drum drive motor 9.3 are connected to the A' port of the cable drum drive valve group 9. The B port of the cable drum drive valve group 9 is connected to the oil inlet of the one-way balance valve II 9.2. The oil outlet of the one-way balancing valve II 9.2 and the B port of the cable drum driving motor 9.3 are connected to the B' port of the cable drum driving valve group 9, the oil drain port of the cable drum driving motor 9.3 is connected to the O port of the cable drum driving valve group 9, the brake 9.4 is connected to the cable drum driving motor 9.3, and the brake release oil port of the brake 9.4 is connected to the L port of the cable drum driving valve group 9; the cable drum driving motor 9.3 is used to drive the cable drum to rotate.

[0030] The manual cable control valve 8 comprises an end cover Ⅰ8.1, a valve body 8.2, an O-type sealing ring Ⅰ8.3, a valve core Ⅰ8.4, an O-type sealing ring Ⅱ8.5, a spring Ⅰ8.6, an end cover Ⅱ8.7, a spring Ⅱ8.8, an O-type sealing ring Ⅲ8.9, a valve core Ⅱ8.10, an O-type sealing ring Ⅳ8.11 and an O-type sealing ring Ⅴ8.12; a valve core cavity Ⅰ and a valve core cavity Ⅱ are arranged in the valve body 8.2, the valve core cavity Ⅰ is connected with the A1 port and the B1 port on the side wall of the valve body 8.2, the valve core cavity Ⅰ and the valve core cavity Ⅱ are connected through the A2 port, and the valve core cavity Ⅱ is connected with the valve body 8.2 The B2 port on the side wall is connected; the end cover Ⅰ8.1 and the end cover Ⅱ8.7 are installed at both ends of the valve body 8.2 by bolts, and an O-ring Ⅴ8.12 is installed between the end cover Ⅰ8.1 and the valve body 8.2; the end cover Ⅰ8.1 is provided with oil ports K1 and K2 that are interconnected, and the end cover Ⅱ8.7 is provided with air ports C1 and C2, ports K1 and C1 are connected to the valve core cavity Ⅰ, and ports K2 and C2 are connected to the valve core cavity Ⅱ; the valve core Ⅰ8.4 is installed in the valve core cavity Ⅰ, and the valve core Ⅰ8.4 includes valve core section Ⅰa and valve core section Ⅰb , valve core section Ⅰc and valve core section Ⅰd, O-ring Ⅰ8.3 is sleeved on valve core section Ⅰa and is in sealing contact with valve core chamber Ⅰ, O-ring Ⅱ8.5 is sleeved on valve core section Ⅰc and is in sealing contact with valve core chamber Ⅰ, spring Ⅰ8.6 is sleeved on valve core section Ⅰd and its two ends are respectively connected to end cover Ⅱ8.7 and valve core section Ⅰc, O-ring Ⅰ8.3 blocks the connection between K1 port and A1 port, O-ring Ⅱ8.5 blocks the connection between B1 port and K3 chamber where valve core section Ⅰd is located; valve core Ⅱ8.10 is installed in valve core chamber Ⅱ, valve core Ⅱ8.10 includes valve core section Ⅱa, valve core section Ⅱb, valve core section Ⅱc and valve core section Ⅱd, O-ring IV8.11 is sleeved on valve core section Ⅱa and in sealing contact with valve core chamber Ⅱ, O-ring III8.9 is sleeved on valve core section Ⅱc and in sealing contact with valve core chamber Ⅱ, spring Ⅱ8.8 is sleeved on valve core section Ⅱd and its two ends are respectively connected to end cover Ⅱ8.7 and valve core section Ⅱc, O-ring IV8.11 blocks the connection between K2 port and A2 port, O-ring III8.9 blocks the connection between B2 and chamber K4 where valve core section Ⅱ is located.

[0031] The balancing valve group I27 integrates a one-way balancing valve III and a one-way balancing valve IV, the A port of the balancing valve group I27 is connected to the oil inlet of the one-way balancing valve III and the control port of the one-way balancing valve IV, the oil outlet of the one-way balancing valve III is connected to the A' port of the balancing valve group I27, the B port of the balancing valve group I27 is connected to the oil inlet of the one-way balancing valve IV and the control port of the one-way balancing valve III, and the oil outlet of the one-way balancing valve IV is connected to the B' port of the balancing valve group I27.

[0032] The balancing valve group II28 integrates a one-way balancing valve V and a one-way balancing valve VI. The A port of the balancing valve group II28 is connected to the oil inlet of the one-way balancing valve V and the control port of the one-way balancing valve VI. The oil outlet of the one-way balancing valve V is connected to the A' port of the balancing valve group II28. The B port of the balancing valve group II28 is connected to the oil inlet of the one-way balancing valve VI and the control port of the one-way balancing valve V. The oil outlet of the one-way balancing valve VI is connected to the B' port of the balancing valve group II28.

[0033] The variable pump 1 is installed at the output end of the torque converter, and the oil outlet is connected to the P port of the electronically controlled proportional multi-way valve 5 after passing through the filter 2 and the safety valve 3. After the vehicle is started, the variable pump 1 starts to operate. When there is no working mechanism in motion, the variable pump 1 is in a standby state, and only a very small flow is output to maintain the internal unloading and lubrication of the variable pump 1 itself.

[0034] The electromagnetic reversing valve core Ⅰ in the electric control proportional multi-way valve 5 controls the retraction and extension of the cable. Ports A1 and B1 are respectively connected to ports A and B of the cable drum drive valve group 9, and port M is connected to port P of the electromagnetic reversing valve Ⅲ6; port A of the electromagnetic reversing valve Ⅲ6 is blocked, port B is connected to port 2 of the shuttle valve Ⅰ10, and port T is connected back to the oil tank; under normal conditions, port P of the electromagnetic reversing valve Ⅲ6 is connected to port A, and port B is connected to port T. After reversing, port P is connected to port B, and port A is connected to port T; port 3 of the shuttle valve Ⅰ10 is connected to port L of the cable drum drive valve group 9. The electromagnetic reversing valve Ⅲ6 adopts a flameproof electromagnetic reversing valve.

[0035] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines can also realize manual rotation of the cable drum:

[0036] The P port of the manual reversing valve 7 is connected to the M port of the electric control proportional multi-way valve 5, the A port is connected to the K1 port of the manual cable winding control valve 8, the B port is blocked, and the T port is connected back to the oil tank; the A1 port of the manual cable winding control valve 8 is connected to the A' port of the cable winding drive valve group 9, the B1 port is connected back to the oil tank, the B2 port is connected to the B' port of the cable winding drive valve group 9, and the K2 port is connected to the 1 port of the shuttle valve Ⅰ10; under normal conditions, the P port of the manual reversing valve 7 is connected to the B port, the A port is connected to the T port, and the valve core Ⅰ8.4 and the valve Core II 8.10 moves toward end cover I8.1 under the action of spring I8.6 and spring II8.8, blocking the connection between port A1 and port B1 and the connection between port A2 and port B2 in the manual cable control valve 8; after the manual reversing valve 7 is switched, port P is connected to port A, port B is connected to port T, and valve core I8.4 and valve core II 8.10 move toward end cover II 8.7 under the action of hydraulic oil, and port A1 is connected to port B1 and port A2 is connected to port B2 in the manual cable control valve 8.

[0037] The cable drum drive motor 9.3 is in a braking state during the operation of the vehicle to prevent the cable drum from rotating and the cable from loosening due to road bumps or inertia of ups and downs.

[0038] When the cable drum is driven by the cable drum driving motor 9.3 to rotate and retract the cable, the electromagnetic reversing valve III6 changes direction, and the hydraulic oil generated by the variable pump 1 enters the L port of the cable drum driving valve group 9 through the filter 2, the 1st and 3rd ports of the safety valve 3, the P and M ports of the electric proportional multi-way valve 5, the P and B ports of the electromagnetic reversing valve III6, and the 2nd and 3rd ports of the shuttle valve I10. The compression spring of the brake 9.4 releases the brake, and the brake of the cable drum driving motor 9.3 can be released. The cable retracting and releasing handle is operated by the remote control to control the reversal of the electromagnetic reversing valve core I to control the forward or reverse rotation of the cable drum driving motor 9.3 to recover or release the cable. The output current can be controlled according to the size of the operating angle to control the opening amount of the electromagnetic reversing valve core I to achieve stepless speed regulation of the cable drum. The hydraulic oil in the manual cable reeling control valve 8 flows back to the oil tank through the K1 and K2 ports, and the A and T ports of the manual reversing valve 7 to unload.

[0039] When the cable drum needs to be rotated manually, the electromagnetic reversing valve III6 is reset, the manual reversing valve 7 is reversed, and the hydraulic oil generated by the variable pump 1 reaches the lower end of the valve core I8.4 and the valve core II8.10 through the filter 2, the 1st and 3rd ports of the safety valve 3, the P and M ports of the electric proportional multi-way valve 5, the P and A ports of the manual reversing valve 7, and the K1 and K2 ports of the manual cable winding control valve 8, pushing the valve core I8.4 and the valve core II8.10 to move upward, compressing the spring I8.6 and the spring II8.8 to connect the A1 port with the B1 port, and the A2 port with the B2 port. Since the A1 port is connected to the A2 port, the A1 port, the A2 port, the B1 port, and the B2 port are all connected. The hydraulic oil in the cable drum drive valve group 9 flows from the A' port and the B' port through the A1, B2, A2, and B1 ports of the manual cable winding control valve 8 back to the oil tank to unload. At the same time, the hydraulic oil reaching the manual cable reel control valve 8K2 also passes through the ports 1 and 3 of the shuttle valve Ⅰ10 and enters the port L of the cable reel drive valve group 9 to unlock the brake 9.4. After unlocking and linkage, the cable reel can be manually rotated.

[0040] The electromagnetic reversing valve core II in the electric-controlled proportional multi-way valve 5 controls the lifting of the cable reel. The A2 port and the B2 port are respectively connected to the A port and the B port of the balancing valve group I27. The A' port of the balancing valve group I27 is connected to the rodless cavity of the cable reel lifting cylinder 11. The B' port of the balancing valve group I27 is connected to the rod cavity of the cable reel lifting cylinder 11. The cable reel lifting cylinder 11 is used to drive the cable reel support frame to rotate around the hinge point of the frame and the cable reel support frame.

[0041] When the cable drum needs to be raised or lowered, the electromagnetic reversing valve core II is remotely controlled to control the extension and retraction of the cable drum lifting cylinder 11, and the balancing valve group I 27 ensures that the cable drum remains stationary when the electromagnetic reversing valve core II is in the middle position. At the same time, in order to avoid damage to the cable drum lifting cylinder 11 due to impact caused by bumps and the like during vehicle transportation, a retractable support column is designed on the cable drum support frame. The extension and retraction of the retractable support column is adjusted by the support cylinder 22 therein. The P port of the electromagnetic reversing valve IV21 is connected to the M port of the electric controlled proportional multi-way valve 5, the A port is connected to the rodless cavity of the support cylinder 22, the B port is connected to the rod cavity of the support cylinder 22, and the T port is connected back to the oil tank; the P port of the electromagnetic reversing valve IV21 is blocked under normal conditions, and the A port, the B port and the T port are connected. The support cylinder 22 is in a follow-up state. After the reversing, the P port is connected to the A port, and the B port is connected to the T port, pushing the piston rod of the support cylinder 22 to extend. After the support cylinder 22 is extended to the required position, the retractable support column is reliably locked by machinery.

[0042] The electromagnetic reversing valve core III in the electric control proportional multi-way valve 5 controls the lifting and lowering of the cable arm. The A3 port and the B3 port are respectively connected to the A port and the B port of the balance valve group II 28. The A' port of the balance valve group II 28 is connected to the rodless cavity of the cable arm lifting cylinder 12, and the B' port of the balance valve group II 28 is connected to the rod cavity of the cable arm lifting cylinder 12. The cable arm lifting cylinder 12 is used to drive the cable arm to rotate around the hinge point of the cable drum support frame and the cable arm. The balance valve group II 28 can provide reliable support after the cable arm is raised to a specified height.

[0043] The electromagnetic reversing valve core IV in the electric control proportional multi-way valve 5 controls the reciprocating motion of the cable arrangement machine to arrange the cables. The A4 port of the electric control proportional multi-way valve 5 is connected to the P1 port of the electromagnetic reversing valve I13.1, the A1 port of the electromagnetic reversing valve I13.1 is connected to the A port of the cable arrangement motor 14, the B port of the cable arrangement motor 14 is connected to the A2 port of the electromagnetic reversing valve II13.2, the P2 port of the electromagnetic reversing valve II13.2 is connected to the B4 port of the electric control proportional multi-way valve 5, the B1 port of the electromagnetic reversing valve I13.1 and the B2 port of the electromagnetic reversing valve II13.2 are blocked, and the T1 port of the electromagnetic reversing valve I13.1 and the T2 port of the electromagnetic reversing valve II13.2 are connected back to the oil tank; the cable arrangement motor 14 is used to drive the cable arrangement machine to do linear reciprocating motion. The electromagnetic reversing valve I13.1 and the electromagnetic reversing valve II13.2 use explosion-proof electromagnetic valves.

[0044] During normal cable arrangement, the electromagnetic reversing valve core IV is remotely operated, and the hydraulic oil enters the A port of the cable arrangement motor 14 through the A4 port of the electronically controlled proportional multi-way valve 5, the P1 port and the A1 port of the electromagnetic reversing valve I 13.1, driving the cable arrangement motor 14 to rotate forward, and flows out from the B port through the A2 port and the P2 port of the electromagnetic reversing valve II 13.2, and the B4 port of the electronically controlled proportional multi-way valve 5 to return to the oil tank, and the cables are arranged from left to right; similarly, when the hydraulic oil enters the B port of the cable arrangement motor 14 through the B4 port of the electronically controlled proportional multi-way valve 5, the P2 port and the A2 port of the electromagnetic reversing valve II 13.2, it drives the cable arrangement motor 14 to rotate in the opposite direction, and flows out from the A port through the A1 port and the P1 port of the electromagnetic reversing valve I 13.1, and the A4 port of the proportional multi-way valve to return to the oil tank, and the cables are arranged from right to left.

[0045] Two sets of travel control switches are located at both ends of the cable discharging machine's moving track; the electromagnetic reversing valve Ⅰ13.1 and the electromagnetic reversing valve Ⅱ13.2 are switched according to the signals of the corresponding travel control switches. When the cable discharging machine moves to the right end, the right end travel switch works, so that the electromagnetic reversing valve Ⅰ13.1 electromagnet is energized, and after being energized, the valve is switched to the right position, that is, the valve P1 is blocked, cutting off the oil inlet of the A port of the cable discharging motor 14, and the cable discharging motor 14 stops rotating, and the valve A1 port and T1 port are connected back to the oil tank, that is, the A port of the cable discharging motor 14 is connected back to the oil tank through the A1 port and T1 port of the valve to unload. Only when the cable motor 14 is operated to move in the reverse direction, oil enters the B port of the cable motor 14, and the A port returns to the oil tank through the A1 port and T1 port of the electromagnetic reversing valve Ⅰ13.1. After rotation, the right end stroke switch loses its function, and the electromagnet of the electromagnetic reversing valve Ⅰ13.1 is powered off; similarly, when the cable machine moves to the left end, the left end stroke switch works, so that the electromagnet of the electromagnetic reversing valve Ⅱ13.2 is energized, and after being energized, it switches to the right position, that is, the valve P2 is blocked, cutting off the oil inlet from the B port of the cable motor 14, and the cable motor 14 stops rotating, and the A2 port and T2 port of the valve are connected back to the oil tank, that is, the B port of the cable motor 14 is connected back to the oil tank through the A2 port and T2 port of the valve to unload. Only when the cable motor 14 is operated to move in the reverse direction, the oil enters the A port of the cable motor 14, and the B port returns to the oil tank through the A2 port and T2 port of the electromagnetic reversing valve II 13.2. After the rotation, the left end travel switch loses its function, and the electromagnetic body of the electromagnetic reversing valve II 13.2 is powered off. Setting the travel control switch effectively avoids damage to the cable machine caused by not releasing the control button when the cable machine reaches the end point to the left or right.

[0046] The electromagnetic reversing valve core V in the electric control proportional multi-way valve 5 controls the crawler belt to rotate and transport the cable. The A5 port of the electric control proportional multi-way valve 5 is connected to the A1 port of the cable conveying motor Ⅰ15, the B1 port of the cable conveying motor Ⅰ15 is connected to the A2 port of the cable conveying motor Ⅱ16, and the B2 port of the cable conveying motor Ⅱ16 is connected to the B5 port of the electric control proportional multi-way valve 5; the cable conveying motor Ⅰ15 and the cable conveying motor Ⅱ16 are used to synchronously drive the two crawlers to rotate. The two motors are controlled in series to ensure that the oil inlet and oil outlet of the two motors are connected, and the two motors are synchronized.

[0047] One of the two crawlers is a movable crawler, and the other is a fixed crawler. The movable crawler is driven by the clamping cylinder 26 to move closer to or away from the fixed crawler so as to adjust the clamping control force according to the cable diameter. Port 2 of the shuttle valve II 23 is connected between port A5 of the electric control proportional multi-way valve 5 and port A1 of the cable conveying motor I 15, port 1 is connected between port B2 of the cable conveying motor II 16 and port B5 of the electric control proportional multi-way valve 5, and port 3 is connected to port K of the hydraulic control reversing valve 24; port P of the hydraulic control reversing valve 24 is connected to port P of the electric control proportional multi-way valve 5, port A is blocked, port B is connected to the inlet of the pressure reducing valve 25, and port T is connected back to the oil tank; port P of the hydraulic control reversing valve 25 is connected to port A and port B is connected to port T in normal state, and port P is connected to port B and port A is connected to port T after reversing; the outlet of the pressure reducing valve 25 is connected to the rodless chamber of the clamping cylinder 26.

[0048] When the electromagnetic reversing valve core V is remotely controlled, the hydraulic oil entering the A1 port of the cable conveying motor I15 or the hydraulic oil entering the B2 port of the cable conveying motor II16 during reversal passes through the 2nd or 1st port of the shuttle valve II23, and then enters the control port K of the hydraulic control reversing valve 24 after reaching the 3rd port of the shuttle valve II23, and controls the valve to be reversing to the left position, that is, the P port is connected to the B port, and the A port is connected to the T port and returns to the oil tank. The hydraulic oil passes through the P port and the B port of the hydraulic control reversing valve 24 and the pressure reducing valve 25, and then enters the rodless chamber of the clamping cylinder 26, pushing the piston rod to move and clamp the cable. The clamping force can be adjusted by adjusting the pressure reducing valve 25, realizing automatic clamping during cable transportation. The movable crawler is also equipped with a manual clamping mechanism. When the automatic clamping mechanism fails, the cable can be clamped by the manual clamping mechanism.

[0049] The electromagnetic reversing valve core VI in the electric proportional multi-way valve 5 controls the compression of the cable. The A6 port and the B6 port are respectively connected to the rod chamber and the rodless chamber of the cable compression cylinder 17; the cable compression cylinder 17 is used to drive the cable compression bracket to rotate around the hinge point of the cable drum support frame and the cable compression bracket, so as to compress the cable on the cable drum to avoid the looseness and disorder caused by the loosening of the cable during the cable winding process. The cylinder has a follow-up function and can adjust the stroke at any time according to the change of the outer diameter of the cable layer on the cable drum. When the cable drum needs to be disassembled, the cable compression cylinder 17 can be manually lifted for replacement.

[0050] The air source 18 is connected to the port 1 of the emergency stop button Ⅰ19, the port 2 of the emergency stop button Ⅰ19 is connected to the port 1 of the emergency stop button Ⅱ20, the port 2 of the emergency stop button Ⅱ20 is connected to the port Z of the air-controlled oil shut-off valve 4; the port P of the air-controlled oil shut-off valve 4 is connected to the LS of the electric-controlled proportional multi-way valve 5, the port A is blocked, the port B is connected to the port X of the variable pump 1, and the port T is connected back to the oil tank; under normal conditions, the ports 1 and 2 of the emergency stop button Ⅰ19 are connected, and the ports 1 and 2 of the emergency stop button Ⅱ20 are connected. The compressed gas provided by the air source 18 reaches the port Z of the air-controlled oil shut-off valve 4 after passing through the ports 1 and 2 of the emergency stop button Ⅰ19 and the ports 1 and 2 of the emergency stop button Ⅱ20, so that the air-controlled oil shut-off valve 4 is switched to the right position, and the port P of the valve is connected to the port B, and the port A is connected. It is connected to port T, and the hydraulic oil passes through port LS of proportional multi-way valve 5, through port P and port B of air-controlled oil shut-off valve 4 to port X of variable pump 1; when encountering an emergency, press emergency stop button Ⅰ19 or emergency stop button Ⅱ20. When emergency stop button Ⅰ19 is pressed, the valve is in the upper position, ports 2 and 3 are connected, and air is released. Port Z of air-controlled oil shut-off valve 4 is exhausted after passing through ports 2 and 3 of emergency stop button Ⅰ19. Air-controlled oil shut-off valve 4 is reset to the left position under the action of the spring, and the hydraulic oil at port LS of electric-controlled proportional multi-way valve 5 is blocked through port P of air-controlled oil shut-off valve 4 to port A, and the hydraulic oil at port X of variable pump 1 returns to the oil tank through ports B and T of air-controlled oil shut-off valve 4 to relieve pressure, and variable pump 1 returns to standby state, and the cable reel cannot move even in the operating state. Similarly, when the emergency stop button Ⅱ20 is pressed, the valve is in the upper position, ports 2 and 3 are exhausted, port Z of the pneumatic oil cut-off valve 4 is exhausted after ports 2 and 3 of the emergency stop button Ⅱ20, and the pneumatic oil cut-off valve 4 is reset to the left position under the action of the spring, and the hydraulic oil of the LS port of the electric control proportional multi-way valve 5 is blocked from port P to port A through the pneumatic oil cut-off valve 4, and the hydraulic oil of the X port of the variable pump 1 returns to the oil tank through ports B and T of the pneumatic oil cut-off valve 4 to relieve pressure, and the variable pump 1 returns to the standby state, and the cable drum cannot move even in the operating state. Emergency stop buttons Ⅰ19 and Ⅱ20 are installed on both sides of the cable drum support frame.

[0051] The above-mentioned vehicle-mounted winding and discharging cable control system for coal mines is also equipped with manual operation. When the remote control function fails or fails, the actions of each actuator can be performed by manual control. In addition to the electromagnet, the electromagnetic reversing valve III 6 also integrates an emergency button, which can be used to change direction and manually unlock the brake 9.4 in an emergency.

[0052] The above-mentioned vehicle-mounted cable winding and discharge control system for coal mines also adds a manual throttle, which is interlocked with the foot throttle. When the manual throttle is operated, the foot throttle does not work, and when the hand throttle is working, the foot throttle does not work. When the working mechanism is in motion, it can be operated in the vehicle idle state. If it needs to be fast, the opening of the hand throttle can be increased to increase the speed of the variable pump 1, increase the pump flow, and thus increase the speed of the cable drum drive motor 9.3.

[0053] The above-mentioned vehicle-mounted cable winding and laying control system for coal mines can be used for cable winding recovery and cable laying transportation of cables of different specifications, realizes long-distance remote control of the vehicle-mounted cable winding and laying mechanism, multiple protection settings and idling functions, avoids the safety hazards caused by manual operation, improves the efficiency of cable recovery and laying in coal mines, and greatly reduces the labor intensity of workers.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle-mounted winding and discharge cable control system for coal mines, characterized in that: It includes a variable pump, an electronically controlled proportional multi-way valve, an electromagnetic reversing valve III, a shuttle valve I, a cable drum drive valve group, an electromagnetic reversing valve I, an electromagnetic reversing valve II, a cable arrangement motor, a cable conveying motor I and a cable conveying motor II; The electrically controlled proportional multi-way valve comprises a plurality of electromagnetic reversing valve cores, the P ports of the plurality of electromagnetic reversing valve cores are communicated with the P port of the electrically controlled proportional multi-way valve, the T ports of the plurality of electromagnetic reversing valve cores are communicated with the T port of the electrically controlled proportional multi-way valve, the A port of each electromagnetic reversing valve core is communicated with the corresponding A port of the electrically controlled proportional multi-way valve, and the B port of each electromagnetic reversing valve core is communicated with the corresponding B port of the electrically controlled proportional multi-way valve; The cable drum drive valve group integrates a one-way balance valve I, a one-way balance valve II, a cable drum drive motor and a brake. The A port of the cable drum drive valve group is connected to the oil inlet of the one-way balance valve I and the control port of the one-way balance valve II. The oil outlet of the one-way balance valve I and the A port of the cable drum drive motor are connected to the A' port of the cable drum drive valve group. The B port of the cable drum drive valve group is connected to the oil inlet of the one-way balance valve II and the control port of the one-way balance valve I. The oil outlet of the one-way balance valve II and the B port of the cable drum drive motor are connected to the B' port of the cable drum drive valve group. The oil drain port of the cable drum drive motor is connected to the O port of the cable drum drive valve group. The brake is connected to the cable drum drive motor. The brake release oil port is connected to the L port of the cable drum drive valve group. The cable drum driving motor is used to drive the cable drum to rotate; The oil outlet of the variable pump is connected to the P port of the electronically controlled proportional multi-way valve; The A1 port and B1 port of the electric control proportional multi-way valve are connected to the A port and B port of the cable drum drive valve group respectively, and the M port is connected to the P port of the electromagnetic reversing valve III; The port A of the electromagnetic reversing valve III is blocked, the port B is connected to the port 2 of the shuttle valve I, and the port T is connected back to the oil tank; The solenoid reversing valve III has a P port connected to an A port and a B port connected to a T port in a normal state, and a P port connected to a B port and a A port connected to a T port after reversing; Port 3 of the shuttle valve I is connected to port L of the cable drum drive valve group; The A4 port of the electronically controlled proportional multi-way valve is connected to the P1 port of the electromagnetic reversing valve I, the A1 port of the electromagnetic reversing valve I is connected to the A port of the cable arrangement motor, the B port of the cable arrangement motor is connected to the A2 port of the electromagnetic reversing valve II, the P2 port of the electromagnetic reversing valve II is connected to the B4 port of the electronically controlled proportional multi-way valve, the B1 port of the electromagnetic reversing valve I and the B2 port of the electromagnetic reversing valve II are blocked, and the T1 port of the electromagnetic reversing valve I and the T2 port of the electromagnetic reversing valve II are connected back to the oil tank; The cable arrangement motor is used to drive the cable arrangement machine to perform linear reciprocating motion; The A5 port of the electric control proportional multi-way valve is connected to the A1 port of the cable conveying motor I, the B1 port of the cable conveying motor I is connected to the A2 port of the cable conveying motor II, and the B2 port of the cable conveying motor II is connected to the B5 port of the electric control proportional multi-way valve; The cable conveying motor I and the cable conveying motor II are used to synchronously drive the two crawlers to rotate.

2. The vehicle-mounted winding and discharge cable control system for coal mines according to claim 1 is characterized in that: It also includes a manual reversing valve and a manual cable control valve; The manual cable control valve comprises an end cover Ⅰ, a valve body, an O-type sealing ring Ⅰ, a valve core Ⅰ, an O-type sealing ring Ⅱ, a spring Ⅰ, an end cover Ⅱ, a spring Ⅱ, an O-type sealing ring Ⅲ, a valve core Ⅱ, an O-type sealing ring Ⅳ and an O-type sealing ring Ⅴ; The valve body is provided with a valve core cavity I and a valve core cavity II, the valve core cavity I is connected with the A1 port and the B1 port on the side wall of the valve body, the valve core cavity I is connected with the valve core cavity II through the A2 port, and the valve core cavity II is connected with the B2 port on the side wall of the valve body; the end cover I and the end cover II are installed at both ends of the valve body, and an O-type sealing ring V is installed between the end cover I and the valve body; the end cover I is provided with an oil port K1 port and an oil port K2 port that are connected to each other, and the end cover II is provided with an air vent C1 port and an air vent C2 port, the K1 port and the C1 port are connected with the valve core cavity I, and the K2 port and the C2 port are connected with the valve core cavity II; The valve core I is installed in the valve core cavity I, and the valve core I includes valve core section Ia, valve core section Ib, valve core section Ic and valve core section Id. The O-type sealing ring I is sleeved on the valve core section Ia and is in sealing contact with the valve core cavity I. The O-type sealing ring II is sleeved on the valve core section Ic and is in sealing contact with the valve core cavity I. The spring I is sleeved on the valve core section Id and its two ends are respectively connected to the end cover II and the valve core section Ic. The O-type sealing ring I blocks the connection between the K1 port and the A1 port, and the O-type sealing ring II blocks the connection between the B1 port and the K3 cavity where the valve core section Id is located. The valve core II is installed in the valve core cavity II, and the valve core II includes valve core section IIa, valve core section IIb, valve core section IIc and valve core section IId. The O-type sealing ring IV is sleeved on the valve core section IIa and is in sealing contact with the valve core cavity II. The O-type sealing ring III is sleeved on the valve core section IIc and is in sealing contact with the valve core cavity II. The spring II is sleeved on the valve core section IId and its two ends are respectively connected to the end cover II and the valve core section IIc. The O-type sealing ring IV blocks the connection between the K2 port and the A2 port, and the O-type sealing ring III blocks the connection between B2 and the K4 cavity where the valve core section II is located. The P port of the manual reversing valve is connected to the M port of the electric proportional multi-way valve, the A port is connected to the K1 port of the manual cable control valve, the B port is blocked, and the T port is connected back to the oil tank; The A1 port of the manual cable reel control valve is connected to the A' port of the cable reel drive valve group, the B1 port is connected back to the oil tank, the B2 port is connected to the B' port of the cable reel drive valve group, and the K2 port is connected to the 1 port of the shuttle valve I; In the normal state of the manual reversing valve, the P port is connected to the B port, the A port is connected to the T port, and the valve core I and the valve core II move toward the end cover I under the action of the spring I and the spring II, blocking the connection between the A1 port and the B1 port and the connection between the A2 port and the B2 port in the manual cable control valve; After the manual reversing valve is switched, the P port is connected to the A port, the B port is connected to the T port, the valve core I and the valve core II move toward the end cover II under the action of the hydraulic oil, and the A1 port and the B1 port in the manual cable control valve are connected, and the A2 port and the B2 port are connected.

3. The vehicle-mounted winding and discharge cable control system for coal mines according to claim 1 is characterized in that: Also includes a travel control switch; Two sets of travel control switches are located at both ends of the cable handling machine's moving track; The solenoid reversing valve I and the solenoid reversing valve II are switched according to the signal of the corresponding stroke control switch.

4. The vehicle-mounted winding and discharge cable control system for coal mines according to claim 1 is characterized in that: It also includes shuttle valve II, hydraulically controlled reversing valve, pressure reducing valve and clamping cylinder; Port 2 of the shuttle valve II is connected between port A5 of the electric control proportional multi-way valve and port A1 of the cable conveying motor I, port 1 is connected between port B2 of the cable conveying motor II and port B5 of the electric control proportional multi-way valve, and port 3 is connected to port K of the hydraulic control reversing valve; The P port of the hydraulically controlled reversing valve is connected to the P port of the electrically controlled proportional multi-way valve, the A port is blocked, the B port is connected to the inlet of the pressure reducing valve, and the T port is connected back to the oil tank; Under normal conditions, the P port of the hydraulically controlled reversing valve is connected to the A port, and the B port is connected to the T port. After reversing, the P port is connected to the B port, and the A port is connected to the T port. The outlet of the pressure reducing valve is connected to the rodless chamber of the clamping cylinder; The clamping cylinder is used to drive the movable track to approach or move away from the fixed track.

5. The vehicle-mounted winding and discharge cable control system for coal mines according to claim 1 is characterized in that: It also includes a balancing valve group I and a cable drum lifting cylinder; The balancing valve group I integrates a one-way balancing valve III and a one-way balancing valve IV, the A port of the balancing valve group I is connected to the oil inlet of the one-way balancing valve III and the control port of the one-way balancing valve IV, the oil outlet of the one-way balancing valve III is connected to the A' port of the balancing valve group I, the B port of the balancing valve group I is connected to the oil inlet of the one-way balancing valve IV and the control port of the one-way balancing valve III, and the oil outlet of the one-way balancing valve IV is connected to the B' port of the balancing valve group I; The A2 port and B2 port of the electric control proportional multi-way valve are respectively connected to the A port and B port of the balancing valve group I, the A' port of the balancing valve group I is connected to the rodless cavity of the cable drum lifting cylinder, and the B' port of the balancing valve group I is connected to the rod cavity of the cable drum lifting cylinder; The cable drum lifting cylinder is used to drive the cable drum support frame to rotate around the hinge point between the vehicle frame and the cable drum support frame.

6. The vehicle-mounted winding and discharge cable control system for coal mines according to claim 5, characterized in that: It also includes electromagnetic reversing valve IV and support cylinder; The P port of the electromagnetic reversing valve IV is connected to the M port of the electric control proportional multi-way valve, the A port is connected to the rodless cavity of the support cylinder, the B port is connected to the rod cavity of the support cylinder, and the T port is connected back to the oil tank; The electromagnetic reversing valve IV is normally blocked at port P, and ports A, B and T are connected. After reversing, port P is connected to port A, and port B is connected to port T. The support cylinder is located in the retractable support column, and controls the retractable support column to retract and support the cable drum support frame.

7. The vehicle-mounted winding and discharge cable control system for coal mines according to claim 1 is characterized in that: It also includes a balance valve group II and a cable arm lifting cylinder; The balancing valve group II integrates a one-way balancing valve V and a one-way balancing valve VI, the A port of the balancing valve group II is connected to the oil inlet of the one-way balancing valve V and the control port of the one-way balancing valve VI, the oil outlet of the one-way balancing valve V is connected to the A' port of the balancing valve group II, the B port of the balancing valve group II is connected to the oil inlet of the one-way balancing valve VI and the control port of the one-way balancing valve V, and the oil outlet of the one-way balancing valve VI is connected to the B' port of the balancing valve group II; The A3 port and B3 port of the electric control proportional multi-way valve are respectively connected to the A port and B port of the balance valve group II, the A' port of the balance valve group II is connected to the rodless cavity of the cable arm lifting cylinder, and the B' port of the balance valve group II is connected to the rod cavity of the cable arm lifting cylinder; The cable row arm lifting cylinder is used to drive the cable row arm to rotate around the hinge point between the cable drum support frame and the cable row arm.

8. The vehicle-mounted winding and discharging cable control system for coal mines according to claim 1, characterized in that: It also includes a cable pressing cylinder; The A6 port and the B6 port of the electric-controlled proportional multi-way valve are respectively connected to the rod chamber and the rodless chamber of the cable pressing cylinder; The cable pressing oil cylinder is used to drive the cable pressing bracket to rotate around the hinge point between the cable drum support frame and the cable pressing bracket.

9. The vehicle-mounted winding and discharge cable control system for coal mines according to claim 1, characterized in that: It also includes an air source, an emergency stop button I, an emergency stop button II and an air-controlled oil shut-off valve; The air source is connected to port 1 of the emergency stop button I, port 2 of the emergency stop button I is connected to port 1 of the emergency stop button II, and port 2 of the emergency stop button II is connected to port Z of the air-controlled oil shut-off valve; The P port of the pneumatic oil cut-off valve is connected to the LS port of the electric proportional multi-way valve, the A port is blocked, the B port is connected to the X port of the variable pump, and the T port is connected back to the oil tank; Under normal conditions, ports 1 and 2 of emergency stop button Ⅰ are connected, ports 1 and 2 of emergency stop button Ⅱ are connected, ports P and B of the air-controlled oil shut-off valve are connected, and ports A and T are connected; After the emergency stop button Ⅰ and the emergency stop button Ⅱ are switched, port 2 and port 3 are connected, and the pneumatic oil shut-off valve is switched so that port P is connected to port A, and port B is connected to port T.

10. The vehicle-mounted winding and discharging cable control system for coal mines according to claim 1, characterized in that: Also includes filters and safety valves; The variable pump is installed at the output end of the torque converter, and the oil outlet is connected to the P port of the electronically controlled proportional multi-way valve after passing through the filter and the safety valve; The electromagnetic reversing valve III is also provided with an emergency button for reversing.

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