A flameproof electro-hydraulic integrated anchor drilling rig control box

Abstract

The present invention belongs to the field of anchor drilling rig control technology, and solves the problems that the electric control system and hydraulic system of the operating box are large in size, the pipelines are complicated, and they are difficult to maintain. A flameproof electro-hydraulic integrated anchor drilling rig control box is provided, and oil channels are arranged inside the flameproof cavity valve block and on the wall of the main control box. The multi-plate proportional valve used to control the action of the anchor drilling rig is integrated on the flameproof cavity valve block and communicated with the internal oil channel; an oil channel is arranged inside the lower liquid valve plate, and the oil port joint at the lower liquid plate is integrated on the surface of the lower liquid valve plate and communicated with the internal oil channel; an oil channel is arranged inside the right liquid plate valve plate, and the oil port joint at the right liquid plate is integrated on the surface of the right liquid plate valve plate and communicated with the internal oil channel; a balancing cartridge valve is connected to the main control box, and the counter-balancing valve block is used as a superimposed block of the main control box to realize static pressure locking of the connected oil circuit. The present invention designs the electric control part and the hydraulic part together in a flameproof box to realize highly coupled integration of electric control and hydraulic pressure.

Description

Technical Field

[0001] The invention belongs to the technical field of anchor drilling rig control, and in particular relates to a flameproof electro-hydraulic integrated anchor drilling rig control box. Background Art

[0002] At present, the control system of the anchor drill in mining equipment is usually controlled by a split operation box independent of the drill frame. The split operation box contains an electric control system and a hydraulic system. The electric control system is mainly a flameproof electric control box and a variety of sensors responsible for detecting the system status. The hydraulic system includes a seven-way valve, a double counterbalance valve, a hydraulic hose, etc. The electric control system and the hydraulic system of the operation box are connected by multiple hoses and cables, and are transitioned through liquid blocks and partitions. This control method has the disadvantages of large size, complicated pipelines, and difficult maintenance. Summary of the invention

[0003] In order to solve at least one of the above technical problems existing in the prior art, the present invention provides a flameproof electro-hydraulic integrated anchor drilling rig control box.

[0004] The present invention is implemented by the following technical scheme: a flameproof electro-hydraulic integrated anchor drilling rig control box, comprising a main control box, a lower liquid plate, a right liquid plate, a controller and a counterbalance valve group; a flameproof cavity valve block, a plate-type proportional valve and a controller are arranged in the flameproof cavity of the main control box; oil passages are arranged inside the flameproof cavity valve block and on the wall of the main control box; a multi-plate-type proportional valve for controlling the action of the anchor drilling rig is integrated on the flameproof cavity valve block and communicated with the internal oil passage; a counter-plate-type proportional valve is arranged inside the flameproof cavity valve block A pressure sensor is used to monitor the oil inlet pressure and part of the execution pressure in real time; a bell-mouth joint of the main control box body for introducing an external cable is arranged at the end of the explosion-proof cavity valve block, and the explosion-proof cavity of the main control box body is closed by a cover plate assembly; the lower liquid plate is arranged at the bottom of the main control box body, including a lower liquid valve plate, a pressure measuring joint at the lower liquid plate and an oil port joint at the lower liquid plate, an oil channel is arranged inside the lower liquid valve plate, the oil port joint at the lower liquid plate is integrated on the surface of the lower liquid valve plate and is connected to the internal oil channel, and the lower liquid plate is integrated with a pressure measuring joint for real-time monitoring. The oil inlet pressure MP, return oil pressure MR, drain oil pressure MT and feedback pressure MLS of the plate-type proportional valve are now monitored at the pressure measuring joint at the lower liquid plate; the right liquid plate is arranged on the side of the main control box, including the right liquid plate valve plate, the oil port joint at the right liquid plate, the bell-mouth joint at the right liquid plate and the water channel joint. The right liquid plate valve plate is provided with an oil channel inside. The oil port joint at the right liquid plate is integrated on the surface of the right liquid plate valve plate and is connected to the internal oil channel, and is used for the bell-mouth joint at the right liquid plate and the motor cable E1 is introduced. The water channel joints introduced into the motor water channel W1 are all integrated on the surface of the right liquid-passing plate valve plate; the counterbalancing valve group includes a balancing cartridge valve, a pressure measuring joint at the counterbalancing valve and a counterbalancing valve block; the balancing cartridge valve is connected to the main control box; the counterbalancing valve block serves as a superimposed block of the main control box to realize the static pressure locking of the connected oil circuit; the pressure measuring joint at the counterbalancing valve detects the oil port pressure of the oil circuit; the controller is connected to the plate-type proportional valve, the pressure sensor, the balancing cartridge valve, the bell-mouth joint at the main control box, and the bell-mouth joint at the right liquid-passing plate.

[0005] Preferably, a pressure reducing valve for providing pilot control oil for the plate-type proportional valve is integrated on the explosion-proof cavity valve block; a leakage sensor for detecting oil leakage is arranged at the lowest point of the explosion-proof cavity valve block, and the pressure reducing valve and the leakage sensor are connected to the controller.

[0006] Preferably, the plate-type proportional valve is a load-sensitive proportional valve with a secondary pressure regulating valve and a pressure compensating valve; the plate-type proportional valve is fixed to the mounting surface of the explosion-proof cavity valve block by means of valve body screws.

[0007] Preferably, the cover assembly includes a cover, explosion-proof glass, a glass pressing plate, a rubber pad and a copper pad. The glass pressing plate presses the explosion-proof glass to the observation window of the cover through the rubber pad and the copper pad by means of cover screws.

[0008] Preferably, the number of plate-type proportional valves is seven, wherein the first unit controls the rotation of the anchor drilling rig, and the oil ports are A1 and B1; the second unit controls the feed of the anchor drilling rig, and the oil ports are A2 and B2; the third unit controls the feed of the support column, and the oil ports are A3 and B3; the fourth unit controls the front and rear flipping, and the oil ports are A4 and B4; the fifth unit controls the left and right flipping, and the oil ports are A5 and B5; the sixth unit controls the clamping by controlling the clamp, and the oil ports are A6 and B6; the seventh unit controls the side shift and lifting of the drilling rig, and the oil ports are A7 and B7.

[0009] Preferably, the oil port connector at the lower liquid plate includes 16 oil port connectors connected to the oil inlet P, oil return port R, oil drain port T, feedback port LS, and execution oil ports A2, B2, A3, B3, A4, B4, A5, B5, A6, B6, A7, and B7 of the plate-type proportional valve; one oil port connector at the right liquid plate is connected to the execution oil port A1 of the plate-type proportional valve, and one oil port connector is connected to the execution oil port B1 of the plate-type proportional valve and a pressure sensor for monitoring the execution pressure MB1; the balancing cartridge valve is connected to the execution oil ports A2, The oil port connector of B2 is connected to realize the static pressure balance locking of A2 and B2 oil circuits; one pressure measuring connector at the counterbalance valve is connected to the actuating oil port A2 of the second joint plate type proportional valve and the pressure sensor for monitoring the actuating pressure MA2, and one pressure measuring connector is connected to the actuating oil port B2 of the second joint plate type proportional valve; the oil inlet P of the plate type proportional valve is connected to the pressure sensor for monitoring the oil inlet pressure MP; the bell-mouth connector at the main control box includes 5 bell-mouth connectors connected to external cables E2, E3, E4, E5, and E6.

[0010] Preferably, the lower liquid plate and the main control box, the right liquid plate and the main control box, the controller and the main control box, the counterbalancing valve group and the main control box, and the cover plate assembly and the main control box are all connected by fastening screws and sealed by sealing rings.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention designs the electric control part and the hydraulic part together in a flameproof box. At the same time, the flameproof box also has the function of a hydraulic valve block, realizing a highly coupled integration of electric control and hydraulic pressure, and can be used as a "technological black box". The present invention also has secondary pressure regulation and pressure compensation functions, retaining all the functions of the original control mode. The present invention is described in the text as a 7-valve design, and the number of plate-type proportional valves can be changed according to different work requirements to achieve different control boxes corresponding to different numbers of actions: if the work requirement requires 10-link action, the present invention can be upgraded to 10 plate-type proportional valves. At the same time, the right liquid plate described in the invention can change the oil port position and the size and shape of the liquid plate according to the needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 1 is an exploded schematic diagram of the overall structure of the present invention (first perspective);

[0015] Figure 2 is an exploded schematic diagram of the overall structure of the present invention (second viewing angle);

[0016] Figure 3 It is a schematic diagram of the structure of the lower liquid passing plate of the present invention;

[0017] Figure 4 It is a schematic diagram of the main control box structure of the present invention (front view);

[0018] Figure 5 It is a schematic diagram of the main control box structure of the present invention (bottom schematic diagram);

[0019] Figure 6 It is a schematic diagram of the internal structure of the main control box of the present invention;

[0020] Figure 7 It is a schematic structural diagram of the cover plate assembly of the present invention (front view);

[0021] Figure 8 It is a schematic diagram of the connection structure of the glass pressing plate of the present invention;

[0022] Fig. 9 It is a structural schematic diagram of the controller of the present invention;

[0023] Fig.10 It is a schematic structural diagram of the right liquid-passing plate of the present invention;

[0024] Fig.11 It is a schematic diagram of the structure of the counterbalance valve group of the present invention;

[0025] Fig.12 It is the hydraulic principle diagram of the present invention.

[0026] In the figure: 1-main control box; 1.1-explosion-proof cavity valve block; 1.2-plate proportional valve; 1.3-pressure sensor; 1.4-bell mouth joint at the main control box; 1.5-pressure reducing valve; 1.6-leakage sensor; 1.7-valve body screw; 2-lower liquid plate; 2.1-lower liquid valve plate; 2.2-pressure measuring joint at the lower liquid plate; 2.3-oil port joint at the lower liquid plate; 3-right liquid plate; 3.1-right liquid plate valve plate; 3.2-oil port at the right liquid plate Connector; 3.3-Bell-mouth connector at the right liquid plate; 3.4-Water channel connector; 4-Controller; 4.1-Mounting plate; 5-Counterbalance valve group; 5.1-Balancing cartridge valve; 5.2-Pressure measuring connector at the counterbalance valve; 5.3-Counterbalance valve block; 6-Fasten screws; 7.1-Cover plate; 7.2-Explosion-proof glass; 7.3-Glass pressure plate; 7.4-Rubber pad; 7.5-Copper pad; 7.6-Cover plate screw; 7.7-Pulling handle; 7.8-Nameplate; 8-Sealing ring. DETAILED DESCRIPTION

[0027] In conjunction with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described. 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 implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0029] The present invention provides an embodiment:

[0030] like Figures 1 to 12 As shown, a flameproof electro-hydraulic integrated anchor drilling rig control box includes a main control box 1, a lower liquid plate 2, a right liquid plate 3, a controller 4 and a counterbalance valve group 5; the lower liquid plate 2 and the main control box 1, the right liquid plate 3 and the main control box 1, the controller 4 and the main control box 1, the counterbalance valve group 5 and the main control box 1, and the cover plate assembly and the main control box 1 are all connected by fastening screws 6 and sealed by sealing rings 8. In this embodiment, a 7-valve design is taken as an example;

[0031] A flameproof cavity valve block 1.1, a plate-type proportional valve 1.2 and a controller 4 are arranged in the flameproof cavity of the main control box 1; oil passages are arranged inside the flameproof cavity valve block 1.1 and on the wall of the main control box, and a multi-joint plate-type proportional valve 1.2 for controlling the action of the anchor drilling rig is integrated on the flameproof cavity valve block 1.1 and communicated with the internal oil passages; a pressure sensor 1.3 for real-time monitoring of the oil inlet pressure and partial execution pressure of the plate-type proportional valve 1.2 is arranged inside the flameproof cavity valve block 1.1; a bell-mouth joint 1.4 for introducing external cables E2, E3, E4, E5 and E6 at the main control box is arranged at the end of the flameproof cavity valve block 1.1, and the flameproof cavity of the main control box 1 is closed by a cover plate assembly; the oil inlet P of the plate-type proportional valve 1.2 is connected to the pressure sensor 1.3 for monitoring the oil inlet pressure.

[0032] The plate-type proportional valve 1.2 is a load-sensitive proportional valve with a secondary pressure regulating valve and a pressure compensating valve, which can be applied to the multi-action and variable load conditions of the drilling rig; the plate-type proportional valve 1.2 is fixed on the mounting surface of the explosion-proof chamber valve block 1.1 by the valve body screw 1.7. The number of plate-type proportional valves 1.2 is seven, of which the first link controls the rotation of the anchor drilling rig, and the oil ports are A1 and B1; the second link controls the feed of the anchor drilling rig, and the oil ports are A2 and B2; the third link controls the feed of the support column, and the oil ports are A3 and B3; the fourth link controls the front and rear flipping, and the oil ports are A4 and B4; the fifth link controls the left and right flipping, and the oil ports are A5 and B5; the sixth link controls the clamping by controlling the clamp, and the oil ports are A6 and B6; the seventh link controls the lateral shift and lifting of the drilling rig, and the oil ports are A7 and B7. The controller of the present invention can be programmed to control the actions of each part separately through an external control panel. At the same time, since the plate-type proportional valve in the present invention is a load-sensitive proportional valve with secondary pressure regulation and pressure compensation, it has good parallel working characteristics.

[0033] The flameproof cavity valve block 1.1 is integrated with a pressure reducing valve 1.5 for providing pilot control oil for the plate-type proportional valve 1.2, realizing the change from the traditional multi-way valve type of "first piece + middle piece + tail piece" to the plate plug-in combination type of "pressure reducing valve + middle piece", thereby reducing the overall volume; a leakage sensor 1.6 for detecting oil leakage is arranged at the lowest point of the flameproof cavity valve block 1.1, and the power is promptly cut off for maintenance in case of oil leakage to protect the electronic control components from short circuit; the pressure reducing valve 1.5 and the leakage sensor 1.6 are connected to the controller 4. Each plate-type proportional valve 1.2 is connected to the flameproof cavity valve block 1.1 through four valve body mounting screws, the bell-mouth joint 1.4 at the main control box is connected to the flameproof cavity valve block 1.1 through threads, the pressure sensor 1.3 is connected to the flameproof cavity valve block 1.1 through the insertion hole, the pressure reducing valve 1.5 is connected to the flameproof cavity valve block 1.1 through the insertion hole, and the leakage sensor 1.6 is connected to the flameproof cavity valve block 1.1 through screws.

[0034] The lower liquid plate 2 is arranged at the bottom of the main control box 1, and includes a lower liquid valve plate 2.1, a pressure measuring joint 2.2 at the lower liquid plate and an oil port joint 2.3 at the lower liquid plate. An oil passage is arranged inside the lower liquid valve plate 2.1. The oil port joint 2.3 at the lower liquid plate is integrated on the surface of the lower liquid valve plate 2.1 and communicated with the internal oil passage. The lower liquid plate 2 is integrated with the oil inlet pressure MP, the return oil pressure MR, the oil drain pressure MT and the feedback pressure M for realizing the plate type proportional valve 1.2. The pressure measuring joint 2.2 at the lower liquid plate monitored by LS; the oil port joint 2.3 at the lower liquid plate includes 16 oil port joints connected with the oil inlet P, oil return port R, oil drain port T, feedback port LS, and execution oil ports A2, B2, A3, B3, A4, B4, A5, B5, A6, B6, A7, and B7 of the plate-type proportional valve 1.2; the pressure measuring joint 2.2 at the lower liquid plate and the oil port joint 2.3 at the lower liquid plate are both connected with the liquid valve plate 2.1 through threads.

[0035] The right liquid plate 3 is arranged at the side of the main control box 1, including a right liquid plate valve plate 3.1, an oil port connector 3.2 at the right liquid plate, a bell-mouth connector 3.3 at the right liquid plate and a water channel connector 3.4. An oil channel is arranged inside the right liquid plate valve plate 3.1. The right liquid plate oil port connector 3.2 is integrated on the surface of the right liquid plate valve plate 3.1 and communicated with the internal oil channel. The bell-mouth connector 3.3 at the right liquid plate for introducing the motor cable E1 and the water channel connector 3.4 for introducing the motor water channel W1 are both integrated on the surface of the right liquid plate valve plate 3.1; one oil port connector of the right liquid plate oil port connector 3.2 is connected to the actuating oil port A1 of the plate-type proportional valve 1.2, and one oil port connector is connected to the actuating oil port B1 of the plate-type proportional valve 1.2 and the pressure sensor 1.3 for monitoring the actuating pressure MB1; the centralized management of the four motor pipelines A1, B1, E1 and W2 is realized. The oil port connector 3.2 at the right liquid-passing plate and the bell-mouth connector 3.3 at the right liquid-passing plate are both connected to the right liquid-passing plate valve plate 3.1 through threads.

[0036] The controller 4 is fixed to the inner cavity of the main control box 1 through the mounting plate 4.1 and screws, and is connected to the plate-type proportional valve 1.2, the pressure sensor 1.3, the balancing cartridge valve 5.1, the bell-mouth joint 1.4 at the main control box, and the bell-mouth joint 3.3 at the right liquid plate. The program control of the plate-type proportional valve 1.2 is realized, and the signal feedback of the pressure sensor 1.3 and the leakage sensor 1.6 is transmitted.

[0037] The counterbalancing valve group 5 includes a balancing cartridge valve 5.1, a pressure measuring joint 5.2 at the counterbalancing valve and a counterbalancing valve block 5.3. The balancing cartridge valve 5.1 is connected to the main control box 1. The counterbalancing valve block 5.3 serves as a superimposed block of the main control box 1 to achieve static pressure locking of the A2 and B2 oil circuits. The pressure measuring joint 5.2 at the counterbalancing valve detects the oil port pressure of the A2 and B2 oil circuits; the balancing cartridge valve 5.1 is connected to the oil port joints of the actuating oil ports A2 and B2 to achieve static pressure balancing locking of the A2 and B2 oil circuits; one pressure measuring joint of the pressure measuring joint 5.2 at the counterbalancing valve is connected to the actuating oil port A2 of the second joint plate type proportional valve 1.2 and the pressure sensor 1.3 for monitoring the actuating pressure MA2, and one pressure measuring joint is connected to the actuating oil port B2 of the second joint plate type proportional valve 1.2. The two balancing cartridge valves 5.1 are connected to the counterbalancing valve block 5.3 through threaded insert holes, and the pressure measuring joint 5.2 at the counterbalancing valve is connected to the counterbalancing valve block 5.3 through threads.

[0038] The cover assembly includes a cover 7.1, explosion-proof glass 7.2, a glass pressure plate 7.3, a rubber pad 7.4 and a copper pad 7.5. The glass pressure plate 7.3 presses the explosion-proof glass 7.2 to the observation window of the cover 7.1 through the rubber pad 7.4 and the copper pad 7.5 through the cover screw 7.6. The design complies with the explosion-proof design standard and can meet the explosion-proof requirements of the overall box. The installation of explosion-proof glass 7.2 can visually monitor the working status of the internal components of the box and repair them in time when faults are found. The outer surface of the cover 7.1 is provided with a lifting handle 7.7 and a sign 7.8 for displaying relevant parameter information of the entire control box.

[0039] All internal hydraulic pipelines are integrated inside the flameproof cavity valve block 1.1. The A1 and B1 oil ports are discharged from the right liquid plate 5, and the A2~B7 oil ports, the oil inlet P port, the oil return R port, and the feedback LS port are all discharged from the bottom of the lower liquid plate 1. At the same time, three pressure sensors 1.3, a leakage sensor 1.6, and a controller 4 are also integrated inside the flameproof cavity valve block 1.1, so that the electronic control and hydraulic components are integrated into one flameproof cavity at the same time. All pipeline interfaces are connected from the outside of the box, and there are no hydraulic oil pipes inside. The pressure reducing valve 1.5 is arranged by means of plate plug-in combination to realize the change from the traditional "first piece + middle piece + tail piece" multi-way valve type to the "pressure reducing valve + middle piece" type, reducing the overall volume.

[0040] For the present invention, the design described in the text is a 7-valve design. The number of plate-type proportional valves 1.2 can be changed according to different work requirements to achieve work with different control boxes corresponding to different numbers of actions: if the work requirement requires 9-link action, the present invention can be upgraded to 9 plate-type proportional valves. If a fault is found during the work process, each oil circuit can be tested through the pressure measuring joint, and the fault can be debugged and found. At the same time, the interior can also be observed through the explosion-proof glass 7.2. If there is oil leakage in the internal valve body, the leakage sensor 1.6 can alarm, and the fault can be found in time to solve the problem. The right liquid plate 3 can be changed according to the number of oil ports of the drilling rig motor. The design described in the text of the present invention is a 4-way interface (A1, B1, W1, E1). The electric control and hydraulic integration are explosion-proof in the same cavity, without the need for independent explosion-proof. All oil ports and external interfaces are explosion-proof, which belongs to the integrated explosion-proof in the same cavity of electricity and hydraulics.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A flameproof electro-hydraulic integrated anchor drilling rig control box, characterized in that: It comprises a main control box (1), a lower liquid passing plate (2), a right liquid passing plate (3), a controller (4) and a counterbalancing valve group (5); A flameproof cavity valve block (1.1), a plate-type proportional valve (1.2) and a controller (4) are arranged in the flameproof cavity of the main control box (1); oil passages are arranged inside the flameproof cavity valve block (1.1) and on the wall of the main control box; a multi-joint plate-type proportional valve (1.2) for controlling the action of the anchor drilling rig is integrated on the flameproof cavity valve block (1.1) and communicated with the internal oil passage; a pressure sensor (1.3) for real-time monitoring of the oil inlet pressure and partial execution pressure of the plate-type proportional valve (1.2) is arranged inside the flameproof cavity valve block (1.1); a bell-mouth connector (1.4) for introducing an external cable to the main control box is arranged at the end of the flameproof cavity valve block (1.1); and the flameproof cavity of the main control box (1) is closed by a cover plate assembly; The lower liquid plate (2) is arranged at the bottom of the main control box (1), and comprises a lower liquid plate (2.1), a pressure measuring joint (2.2) at the lower liquid plate, and an oil port joint (2.3) at the lower liquid plate. An oil passage is arranged inside the lower liquid plate (2.1). The oil port joint (2.3) at the lower liquid plate is integrated on the surface of the lower liquid plate (2.1) and communicates with the internal oil passage. The lower liquid plate (2) is integrated with a pressure measuring joint (2.2) at the lower liquid plate for monitoring the oil inlet pressure MP, the oil return pressure MR, the oil drain pressure MT, and the feedback pressure MLS of the plate-type proportional valve (1.2). The right liquid plate (3) is arranged on the side of the main control box (1), and comprises a right liquid plate valve plate (3.1), an oil port connector (3.2) at the right liquid plate, a bell-mouth connector (3.3) at the right liquid plate, and a water channel connector (3.4); an oil channel is arranged inside the right liquid plate valve plate (3.1); the oil port connector (3.2) at the right liquid plate is integrated on the surface of the right liquid plate valve plate (3.1) and communicates with the internal oil channel; the bell-mouth connector (3.3) at the right liquid plate for introducing the motor cable E1 and the water channel connector (3.4) for introducing the motor water channel W1 are both integrated on the surface of the right liquid plate valve plate (3.1); The counterbalance valve assembly (5) comprises a balancing cartridge valve (5.1), a pressure measuring joint (5.2) at the counterbalance valve, and a counterbalance valve block (5.3); the balancing cartridge valve (5.1) is connected to the main control box (1); the counterbalance valve block (5.3) serves as a superimposed block of the main control box (1) to achieve static pressure locking of the connected oil circuit; and the pressure measuring joint (5.2) at the counterbalance valve detects the oil port pressure of the oil circuit; The controller (4) is connected to the plate-type proportional valve (1.2), the pressure sensor (1.3), the balancing cartridge valve (5.1), the bell-mouth connector (1.4) at the main control box, and the bell-mouth connector (3.3) at the right liquid-passing plate.

2. The flameproof electro-hydraulic integrated bolter control box according to claim 1, characterized in that: A pressure reducing valve (1.5) for providing pilot control oil for a plate-type proportional valve (1.2) is integrated on the flameproof cavity valve block (1.1); a leakage sensor (1.6) for detecting oil leakage is arranged at the lowest point of the flameproof cavity valve block (1.1); the pressure reducing valve (1.5) and the leakage sensor (1.6) are connected to a controller (4).

3. The flameproof electro-hydraulic integrated anchor drilling rig control box according to claim 2, characterized in that: The plate-type proportional valve (1.2) is a load-sensitive proportional valve with a secondary pressure regulating valve and a pressure compensating valve; the plate-type proportional valve (1.2) is fixed on the mounting surface of the flameproof cavity valve block (1.1) by means of a valve body screw (1.7).

4. The flameproof electro-hydraulic integrated bolter control box according to claim 3 is characterized by: The cover plate assembly comprises a cover plate (7.1), explosion-proof glass (7.2), a glass pressing plate (7.3), a rubber pad (7.4) and a copper pad (7.5). The glass pressing plate (7.3) presses the explosion-proof glass (7.2) onto the observation window of the cover plate (7.1) via the rubber pad (7.4) and the copper pad (7.5) through the cover plate screws (7.6).

5. The flameproof electro-hydraulic integrated bolter control box according to claim 4, characterized in that: The number of plate-type proportional valves (1.2) is seven, of which the first one controls the rotation of the anchor drilling rig, and the oil ports are A1 and B1; the second one controls the feed of the anchor drilling rig, and the oil ports are A2 and B2; the third one controls the feed of the support column, and the oil ports are A3 and B3; the fourth one controls the front and rear flipping, and the oil ports are A4 and B4; the fifth one controls the left and right flipping, and the oil ports are A5 and B5; the sixth one controls the clamping by controlling the clamp, and the oil ports are A6 and B6; the seventh one controls the side shift and lifting of the drilling rig, and the oil ports are A7 and B7.

6. The flameproof electro-hydraulic integrated bolter control box according to claim 5, characterized in that: The oil port connector (2.3) at the lower liquid plate includes 16 oil port connectors connected to the oil inlet P, oil return port R, oil drain port T, feedback port LS, and actuator oil ports A2, B2, A3, B3, A4, B4, A5, B5, A6, B6, A7, and B7 of the plate-type proportional valve (1.2); one oil port connector of the oil port connector (3.2) at the right liquid plate is connected to the actuator oil port A1 of the plate-type proportional valve (1.2), and one oil port connector is connected to the actuator oil port B1 of the plate-type proportional valve (1.2) and the pressure sensor (1.3) for monitoring the actuator pressure MB1; the balancing cartridge valve (5.1) is connected to the actuator oil ports A2 and B 2, for realizing the static pressure balance locking of the A2 and B2 oil circuits; one pressure measuring joint of the pressure measuring joint (5.2) at the counterbalance valve is connected to the actuating oil port A2 of the second joint plate type proportional valve (1.2) and the pressure sensor (1.3) for monitoring the actuating pressure MA2, and one pressure measuring joint is connected to the actuating oil port B2 of the second joint plate type proportional valve (1.2); the oil inlet P of the plate type proportional valve (1.2) is connected to the pressure sensor (1.3) for monitoring the oil inlet pressure; the bell-mouth joint (1.4) at the main control box includes five bell-mouth joints connected to external cables E2, E3, E4, E5, and E6.

7. The flameproof electro-hydraulic integrated bolter control box according to claim 6, characterized in that: The lower liquid-passing plate (2) and the main control box (1), the right liquid-passing plate (3) and the main control box (1), the controller (4) and the main control box (1), the counterbalance valve group (5) and the main control box (1), and the cover plate assembly and the main control box (1) are all connected by fastening screws (6) and sealed by sealing rings (8).

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