Disc brake integrated control valve box for well drilling winch

Abstract

The invention relates to a disc brake integrated control valve box for a well drilling winch. The disc brake integrated control valve box comprises a box body, a disc brake integrated control valve assembly, a manual ball valve, a three-way ball valve and a pneumatic control valve set. The disc brake integrated control valve assembly is mounted in the box body; the air source is communicated with the disc brake integrated control valve assembly through the pneumatic control valve group; an oil inlet of the disc brake integrated control valve assembly is communicated with an oil supply pipeline of the hydraulic station through a manual ball valve, an oil return opening of the disc brake integrated control valve assembly is communicated with an oil return pipeline of the hydraulic station, the disc brake integrated control valve assembly can be communicated with a safety clamp of a winch brake through a three-way ball valve, and the disc brake integrated control valve assembly can be communicated with a working clamp of the winch brake. Opening and closing of the safety tongs and the working tongs are controlled through the disc brake integrated control valve assembly. The disc brake integrated control valve manifold is in signal connection with a control panel located in a driller room. The driller room has the advantages that the whole driller control system can be automatically upgraded conveniently, and the driller room is suitable for modification of new and old driller rooms.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas drilling, and in particular to a disc brake integrated control valve box for a drilling drawworks. Background Art

[0002] At present, the automation level of oil drilling rigs is getting higher and higher, and more and more automated equipment is configured on the drilling platform. These devices must be able to operate safely, efficiently and reliably to ensure the normal operation of the drilling rig.

[0003] The drilling winch is one of the important equipment in modern oil drilling projects. Its main functions are to lower and lower drill tools and casing, control drilling pressure and drill bit during drilling, and lift heavy objects. At present, most of the drilling winch brake systems of land drilling rigs above 50DB are equipped with hydraulic disc brakes. The hydraulic disc brake device is a hydraulically controlled winch brake device. It is mainly composed of a brake disc assembly, a brake assembly, a control valve assembly, a hydraulic power source and accessories. The hydraulic power source provides hydraulic power for the system; the control valve assembly is used to complete the control of each braking action; the brake assembly is a power actuator, which acts with the brake disc assembly to generate a resistance torque to achieve the purpose of braking. The brake assembly includes a working clamp and a safety clamp.

[0004] The brakes of traditional drilling rigs and drilling winches are basically remotely controlled electronic disc brake systems, while the old platform disc brakes are mostly manually controlled hydraulic disc brake systems. The hydraulic disc brake system requires the hydraulic control valve group such as the brake servo valve and the pneumatic control valve group for emergency braking to be installed under the driller's console inside the driller's room. The driller controls the brakes of the drilling winch by manually operating these hydraulic and pneumatic valves. However, there are many cables arranged under the driller's console. After installing these hydraulic and pneumatic valve groups, many hydraulic pipelines and air pipelines need to be connected. The pipelines and cables under the console are complicated, which causes many inconveniences for subsequent fault repairs. Moreover, it is inevitable to disassemble and install hydraulic pipelines or hydraulic valves during the maintenance process. The outflow of hydraulic oil in the pipeline valve block will pollute the cables and the surrounding environment, and it is difficult to clean it up. In severe cases, it will corrode the cables and affect the safety of drilling operations.

[0005] Therefore, there is an urgent need for a disc brake integrated control valve box for a drilling winch that can be remotely controlled and is suitable for the transformation of new and old drilling rigs. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a disc brake integrated control valve box for a drilling drawworks, which solves the technical problem that the prior art cannot achieve remote control and limits the upgrading and transformation of the drilling system.

[0008] (II) Technical solution

[0009] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0010] The present invention provides a disc brake integrated control valve box for a drilling drawworks, comprising a box body, a disc brake integrated control valve manifold, a manual ball valve, a three-way ball valve and a pneumatic control valve group; the disc brake integrated control valve manifold is installed in the box body; an air source is connected to the disc brake integrated control valve manifold through the pneumatic control valve group; an oil inlet of the disc brake integrated control valve manifold is connected to an oil supply line of a hydraulic station through the manual ball valve, an oil return port of the disc brake integrated control valve manifold is connected to an oil return line of the hydraulic station, the disc brake integrated control valve manifold can be connected to a safety clamp of a drawworks brake through the three-way ball valve, and the disc brake integrated control valve manifold can be connected to a working clamp of a drawworks brake; the opening and closing of the safety clamp and the working clamp can be controlled by the disc brake integrated control valve manifold; a signal of the disc brake integrated control valve manifold is connected to a control panel located in a driller's room.

[0011] Optionally, the disc brake integrated control valve assembly includes a safety clamp control valve group and a working clamp control valve group; the safety clamp control valve group and the working clamp control valve group are connected to the oil supply pipeline and the oil return pipeline; the pneumatic control valve group is connected to the safety clamp control valve group, and the safety clamp control valve group is connected to the three-way ball valve; the working clamp valve group is connected to the working clamp; the safety clamp control valve group and the working clamp control valve group signals are connected to the control panel.

[0012] Optionally, the safety clamp control valve group includes an air-controlled reversing valve and an electromagnetic reversing valve; the air-controlled reversing valve is connected to the pneumatic control valve group, and the air-controlled reversing valve can be controlled to switch direction through the pneumatic control valve group; the air-controlled reversing valve is connected to the oil supply pipeline, and the electromagnetic reversing valve is connected to the oil return pipeline; the air-controlled reversing valve is connected to the three-way ball valve through the electromagnetic reversing valve to control the opening and closing of the safety clamp; the electromagnetic reversing valve signal is connected to the control panel.

[0013] Optionally, the working clamp control valve group includes a main oil port, a hydraulically controlled reversing valve, a proportional pressure reducing valve and a hydraulically controlled non-return valve; the main oil port is connected to the oil supply pipeline through the hydraulically controlled reversing valve, the hydraulically controlled reversing valve is connected to the proportional pressure reducing valve, the proportional pressure reducing valve is connected to the oil return pipeline through the hydraulically controlled non-return valve, and the main oil port can be connected to the working clamp to control the opening and closing of the working clamp; the proportional pressure reducing valve signal is connected to the control panel.

[0014] Optionally, the working clamp control valve group also includes a spare oil port, a spare hydraulically controlled reversing valve and a spare proportional pressure reducing valve; the spare oil port is connected to the oil supply pipeline through the spare hydraulically controlled reversing valve, the spare hydraulically controlled reversing valve is connected to the spare proportional pressure reducing valve, the spare proportional pressure reducing valve is connected to the hydraulically controlled one-way valve, and the spare oil port and the main oil port can be respectively connected to the working clamp to control the opening and closing of the working clamp; the spare hydraulically controlled reversing valve signal is connected to the control panel.

[0015] Optionally, the pneumatic control valve group includes a pneumatic reversing valve and a pneumatic controlled solenoid valve; the air source is connected to the pneumatic controlled solenoid valve via the pneumatic reversing valve, and the pneumatic controlled solenoid valve is connected to the pneumatic controlled reversing valve to control the pneumatic controlled reversing valve to perform reversing.

[0016] Optionally, a main system pressure measuring assembly, a safety clamp pressure measuring assembly and a working clamp pressure measuring assembly are provided on the disc brake integrated control valve assembly; the signals of the main system pressure measuring assembly, the safety clamp pressure measuring assembly and the working clamp pressure measuring assembly are connected to the control panel to display the main system pressure, safety clamp pressure and working clamp pressure on the control panel.

[0017] Optionally, the main system pressure measuring assembly includes a main system pressure measuring joint and a main system pressure sensor; the main system pressure measuring joint and the main system pressure sensor are connected to the oil supply pipeline to monitor the main system pressure; the main system pressure sensor signal is connected to the control panel to display the main system pressure on the control panel.

[0018] Optionally, the safety clamp pressure measuring assembly includes a safety clamp pressure measuring joint and a safety clamp pressure sensor; the safety clamp pressure measuring joint and the safety clamp pressure sensor are connected to the three-way ball valve; the safety clamp pressure sensor signal is connected to the control panel to display the safety clamp pressure on the control panel.

[0019] Optionally, the working clamp pressure measuring assembly includes a working clamp pressure measuring joint and a working clamp pressure sensor; the working clamp pressure measuring joint and the working clamp pressure sensor are connected to the oil port of the working clamp; the working clamp pressure measuring joint and the working clamp pressure sensor are connected to the control panel to display the working clamp pressure on the control panel.

[0020] (III) Beneficial effects

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides a disc brake integrated control valve box for drilling winch, which can be arranged between the hydraulic station and the winch brake, and the safety clamp and working clamp of the hydraulic station and the winch brake are connected through the disc brake integrated control valve, forming a safety clamp control oil circuit and a working clamp control oil circuit, and the disc brake integrated control valve can be remotely controlled through the control panel located in the driller's room, thereby realizing remote control of the safety clamp and the working clamp, and the safety clamp control oil circuit is regulated by the pneumatic control valve group. Compared with the prior art, the hydraulic valve group and the pneumatic control valve group required for the manual hydraulic disc brake do not need to be placed inside the driller's room, thus avoiding the risk of oil leakage and contamination of the driller's room, and also saving space for convenient arrangement of the driller's seat, and facilitating the automation upgrade of the entire driller control system, which is suitable for the transformation of the driller's room of new and old drilling rigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a disc brake integrated control valve box for a drilling drawworks in a specific embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the disc brake integrated control valve in a specific embodiment of the present invention;

[0025] Figure 3 It is a hydraulic system diagram of a disc brake integrated control valve box for a drilling drawworks in a specific embodiment of the present invention.

[0026] [Description of Reference Numerals]

[0027] 1: Box; 2: Disc brake integrated control valve assembly; 21: Air-controlled reversing valve; 22: Solenoid reversing valve; 23: Hydraulic-controlled reversing valve; 24: Proportional pressure reducing valve; 25: Hydraulic-controlled check valve; 26: Spare hydraulic-controlled reversing valve; 27: Spare proportional pressure reducing valve; 3: Manual ball valve; 4: Three-way ball valve; 51: Pneumatic reversing valve; 52: Air-controlled solenoid valve. DETAILED DESCRIPTION

[0028] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0029] like Figure 1As shown, a specific embodiment of the present invention provides a disc brake integrated control valve box for a drilling drawworks, comprising a box body 1, a disc brake integrated control valve assembly 2, a manual ball valve 3, a three-way ball valve 4 and a pneumatic control valve group; the disc brake integrated control valve assembly 2 is installed in the box body 1; the air source is connected to the disc brake integrated control valve assembly 2 through the pneumatic control valve group; the oil inlet of the disc brake integrated control valve assembly 2 is connected to the oil supply pipeline of the hydraulic station through the manual ball valve 3, the oil return port of the disc brake integrated control valve assembly 2 is connected to the oil return pipeline of the hydraulic station, the disc brake integrated control valve assembly 2 can be connected to the safety clamp of the drawworks brake through the three-way ball valve 4, and the disc brake integrated control valve assembly 2 can be connected to the working clamp of the drawworks brake; the opening and closing of the safety clamp and the working clamp can be controlled by the disc brake integrated control valve assembly 2; the signal of the disc brake integrated control valve assembly 2 is connected to the control panel located in the driller's room.

[0030] Specifically, it can be arranged between the hydraulic station and the winch brake, and the safety clamp and the working clamp of the hydraulic station and the winch brake are connected through the disc brake integrated control valve assembly 2, forming the safety clamp control oil circuit and the working clamp control oil circuit, and the disc brake integrated control valve assembly 2 can be remotely controlled through the control panel located in the driller's room, thereby realizing the remote control of the safety clamp and the working clamp, and the safety clamp control oil circuit is regulated by the pneumatic control valve assembly. Compared with the prior art, the driller's room does not need to be equipped with the hydraulic valve assembly and the pneumatic control valve assembly required for the manual hydraulic disc brake, thus avoiding the risk of oil leakage and contamination of the driller's room, and also saving space for arranging the driller's seat conveniently, and facilitating the automation upgrade of the entire driller control system, which is suitable for the transformation of the driller's room of new and old drilling rigs.

[0031] Furthermore, if Figure 1 and Figure 2 As shown, the disc brake integrated control valve assembly 2 includes a safety clamp control valve group and a working clamp control valve group; the safety clamp control valve group and the working clamp control valve group are connected to the oil supply pipeline and the oil return pipeline; the pneumatic control valve group is connected to the safety clamp control valve group, and the safety clamp control valve group is connected to the three-way ball valve 4; the working clamp valve group is connected to the working clamp; the working clamp control valve group and the safety clamp control valve group signals are connected to the control panel.

[0032] Specifically, Figure 1-Figure 3As shown, the safety clamp control valve group includes an air-controlled reversing valve 21 and an electromagnetic reversing valve 22; the electromagnetic reversing valve 22 signal is connected to the control panel, and the air-controlled reversing valve 21 is connected to the pneumatic control valve group, and the air-controlled reversing valve 21 can be controlled to change direction through the pneumatic control valve group; the air-controlled reversing valve 21 is connected to the oil supply pipeline, and the electromagnetic reversing valve 22 is connected to the oil return pipeline; the air-controlled reversing valve 21 is connected to the three-way ball valve 4 through the electromagnetic reversing valve 22 to control the opening and closing of the safety clamp. The pneumatic control valve group includes a pneumatic reversing valve 51 and an air-controlled electromagnetic valve 52; the air source is connected to the air-controlled electromagnetic valve 52 through the pneumatic reversing valve 51, and the air-controlled electromagnetic valve 52 is connected to the air-controlled reversing valve 21 to control the reversing of the air-controlled reversing valve 21. The normally open anti-collision air source is connected to the air-controlled electromagnetic valve 52 through the pneumatic reversing valve 51, and the normally closed anti-collision air source is connected to the pneumatic reversing valve 51 to control the reversing of the pneumatic reversing valve 51. When the hydraulic station is powered on, the anti-collision air source is normally open for air supply, the anti-collision air source is normally closed for air supply, the pneumatic reversing valve 51 is maintained in the left position, the electromagnet of the pneumatic solenoid valve 52 is energized, the valve core is switched to the left position, the air source flows to the control port of the pneumatic reversing valve 21 through the pneumatic reversing valve 51 and the pneumatic solenoid valve 52, pushing the valve core of the pneumatic reversing valve 21 to switch to the left position, and the pressure oil flows to the oil port of the solenoid reversing valve 22 through the pneumatic reversing valve 21. The electromagnet of the solenoid reversing valve 22 is initially in the power-off state, that is, the valve core of the solenoid reversing valve 22 is maintained in the right position under the action of the spring force, and the oil of the brake cylinder safety pliers flows back to the return oil pipeline through the three-way ball valve 4 (the default position is to keep the first oil port and the second oil port of the three-way ball valve 4 connected) and the solenoid reversing valve 22, and finally flows back to the oil tank of the hydraulic station through the return oil pipeline. At this time, the safety pliers are in the extended state under the action of the disc spring, holding the brake disc tightly and maintaining the braking state.

[0033] Furthermore, if Figure 3As shown, the working clamp control valve group includes a main oil port, a hydraulically controlled reversing valve 23, a proportional pressure reducing valve 24 and a hydraulically controlled non-return valve 25; the main oil port is connected to the oil supply pipeline through the hydraulically controlled reversing valve 23, the hydraulically controlled reversing valve 23 is connected to the proportional pressure reducing valve 24, the proportional pressure reducing valve 24 is connected to the oil return pipeline through the hydraulically controlled non-return valve 25, and the main oil port can be connected to the working clamp to control the opening and closing of the working clamp; the proportional pressure reducing valve 24 is connected to the control panel by signal. Further, as shown in the figure, the working clamp control valve group also includes a spare oil port, a spare hydraulically controlled reversing valve 26 and a spare proportional pressure reducing valve 27; the spare oil port is connected to the oil supply pipeline through the spare hydraulically controlled reversing valve 26, the spare hydraulically controlled reversing valve 26 is connected to the spare proportional pressure reducing valve 27, the spare proportional pressure reducing valve 27 is connected to the hydraulically controlled non-return valve 25, the spare oil port and the main oil port can be connected to the working clamp respectively to control the opening and closing of the working clamp; the spare hydraulically controlled reversing valve 26 is connected to the control panel by signal. When the left and right working calipers of the winch brake are separated from each other, the main oil port is connected to the left working caliper, and the spare oil port is connected to the right working caliper to drive the left and right working calipers respectively; when the left and right working calipers of the winch brake are combined into one path, it is only necessary to connect the main oil port with the working caliper, block the spare oil port, and the spare hydraulically controlled reversing valve 26 and the spare proportional pressure reducing valve 27 are in standby state.

[0034] Furthermore, if Figure 3 As shown, the disc brake integrated control valve assembly 2 is provided with a main system pressure measuring assembly, a safety clamp pressure measuring assembly and a working clamp pressure measuring assembly; the signals of the main system pressure measuring assembly, the safety clamp pressure measuring assembly and the working clamp pressure measuring assembly are connected to the control panel to display the main system pressure, the safety clamp pressure and the working clamp pressure on the control panel.

[0035] Specifically, Figure 3 As shown, the main system pressure measuring assembly includes a main system pressure measuring joint and a main system pressure sensor; the main system pressure measuring joint and the main system pressure sensor are connected to the oil supply pipeline to monitor the main system pressure; the main system pressure sensor signal is connected to the control panel to display the main system pressure on the control panel. The safety clamp pressure measuring assembly includes a safety clamp pressure measuring joint and a safety clamp pressure sensor; the safety clamp pressure measuring joint and the safety clamp pressure sensor are connected to the three-way ball valve 4; the safety clamp pressure sensor signal is connected to the control panel to display the safety clamp pressure on the control panel. The working clamp pressure measuring assembly includes a working clamp pressure measuring joint and a working clamp pressure sensor; the working clamp pressure measuring joint and the working clamp pressure sensor are connected to the oil port of the working clamp; the working clamp pressure measuring joint and the working clamp pressure sensor are connected to the control panel to display the working clamp pressure on the control panel.

[0036] The working condition of the disc brake integrated control valve box provided in this specific embodiment is that the electromagnet of the electromagnetic reversing valve 22 is energized through the control panel, and the valve core of the electromagnetic reversing valve 22 is switched to the left position, that is, the pressure oil enters the rod chamber of the safety clamp through the valve and the three-way ball valve 4. Because the force exerted by the system pressure on the safety clamp piston is greater than the force applied by the disc spring on the safety clamp piston, the safety clamp retracts under the action of the high-pressure oil, and the disc spring is in a compressed state. At this time, the safety clamp is separated from the brake disc. When the pneumatic control reversing valve 21 is switched to the left position, the hydraulic control reversing valve 23 is switched to the lower position, and the hydraulic control non-return valve 25 is opened at the same time, and the oil leakage and return oil of the proportional pressure reducing valve 24 are connected. At this time, the proportional pressure reducing valve 24 can adjust the pressure normally, and the hydraulic oil is output to the main oil port through the outlet of the proportional pressure reducing valve 24 through the hydraulic control reversing valve 23 to supply oil to the working clamp; the current of the proportional pressure reducing valve 24 is adjusted by the control panel, and then the pressure at the outlet of the proportional valve is changed, and finally the force of the working clamp acting on the brake disc is adjusted, that is, the braking force of the drilling rig winch is adjusted, and finally the speed of lifting or lowering the winch can be controlled, and the winch can be stopped by fully tightening the brake handle.

[0037] During specific use, if the hydraulic system pressure of the hydraulic station is too low, the hydraulic system or the disc brake integrated control valve box is powered off, the pressure of the normally open anti-collision air source is lost (failure of the platform compressed air system), the normally closed anti-collision air source has pressure (triggered by the overhead crane anti-collision, overwinding anti-collision, etc.), or the emergency brake (emergency stop) button is pressed, the emergency brake function of the brake actuator controlled by the disc brake integrated control valve box will be triggered, and the safety clamp will automatically extend to hold the brake. When the emergency brake function is enabled and the electronic disc brake system cannot be used normally due to system failure, the following operations can be performed to release the brake in an emergency, and the rig winch can be operated in a short time to lift and lower the traveling block: first close the manual ball valve 3, and then turn the handle of the three-way ball valve 4 90° to connect the third oil port and the second oil port of the three-way ball valve 4, and the pressure oil in the accumulator of the hydraulic station will enter the safety clamp to release the brake. If the traveling block is lowered into place, the handle of the three-way ball valve 4 can be turned 90° in the opposite direction to perform the parking brake.

[0038] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0041] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A disc brake integrated control valve box for a drilling winch, characterized in that: It comprises a housing (1), a disc brake integrated control valve assembly (2), a manual ball valve (3), a three-way ball valve (4) and a pneumatic control valve group; The disc brake integrated control valve assembly (2) is installed in the housing (1); the air source is connected to the disc brake integrated control valve assembly (2) through the pneumatic control valve assembly; the oil inlet of the disc brake integrated control valve assembly (2) is connected to the oil supply pipeline of the hydraulic station through the manual ball valve (3), the oil return port of the disc brake integrated control valve assembly (2) is connected to the oil return pipeline of the hydraulic station, the disc brake integrated control valve assembly (2) can be connected to the safety clamp of the winch brake through the three-way ball valve (4), and the disc brake integrated control valve assembly (2) can be connected to the working clamp of the winch brake; so as to control the opening and closing of the safety clamp and the working clamp through the disc brake integrated control valve assembly (2); The disc brake integrated control valve (2) is connected to the control panel in the driller's room by signal.

2. The disc brake integrated control valve box for drilling drawworks according to claim 1, characterized in that: The disc brake integrated control valve assembly (2) comprises a safety clamp control valve group and a working clamp control valve group; The safety clamp control valve group and the working clamp control valve group are connected to the oil supply pipeline and the oil return pipeline; the pneumatic control valve group is connected to the safety clamp control valve group, and the safety clamp control valve group is connected to the three-way ball valve (4); the working clamp valve group is connected to the working clamp; The safety clamp control valve group and the working clamp control valve group are connected to the control panel by signals.

3. The disc brake integrated control valve box for drilling drawworks according to claim 2, characterized in that: The safety clamp control valve group comprises a pneumatically controlled reversing valve (21) and an electromagnetic reversing valve (22); The pneumatic control reversing valve (21) is connected to the pneumatic control valve group, and the pneumatic control valve group can control the pneumatic control reversing valve (21) to perform reversing; the pneumatic control reversing valve (21) is connected to the oil supply pipeline, and the electromagnetic reversing valve (22) is connected to the oil return pipeline; the pneumatic control reversing valve (21) is connected to the three-way ball valve (4) through the electromagnetic reversing valve (22) to control the opening and closing of the safety clamp; The electromagnetic reversing valve (22) is connected to the control panel by a signal.

4. The disc brake integrated control valve box for drilling drawworks according to claim 2, characterized in that: The working clamp control valve group comprises a main oil port, a hydraulically controlled reversing valve (23), a proportional pressure reducing valve (24) and a hydraulically controlled check valve (25); The main oil port is connected to the oil supply pipeline via the hydraulically controlled reversing valve (23), the hydraulically controlled reversing valve (23) is connected to the proportional pressure reducing valve (24), the proportional pressure reducing valve (24) is connected to the oil return pipeline via the hydraulically controlled non-return valve (25), and the main oil port can be connected to the working pliers to control the opening and closing of the working pliers; The proportional pressure reducing valve (24) is connected to the control panel via a signal.

5. The disc brake integrated control valve box for drilling drawworks according to claim 4, characterized in that: The working clamp control valve group also includes a spare oil port, a spare hydraulic control reversing valve (26) and a spare proportional pressure reducing valve (27); The standby oil port is connected to the oil supply pipeline via the standby hydraulically controlled reversing valve (26), the standby hydraulically controlled reversing valve (26) is connected to the standby proportional pressure reducing valve (27), the standby proportional pressure reducing valve (27) is connected to the hydraulically controlled check valve (25), and the standby oil port and the main oil port can be respectively connected to the working pliers to control the opening and closing of the working pliers; The standby hydraulically controlled reversing valve (26) is connected to the control panel via a signal.

6. The disc brake integrated control valve box for drilling drawworks according to claim 2, characterized in that: The pneumatic control valve group comprises a pneumatic reversing valve (51) and a pneumatic controlled solenoid valve (52); The gas source is connected to the gas-controlled solenoid valve (52) via the pneumatic reversing valve (51), and the gas-controlled solenoid valve (52) is connected to the gas-controlled reversing valve (21) to control the reversing of the gas-controlled reversing valve (21).

7. The disc brake integrated control valve box for drilling drawworks according to claim 1, characterized in that: The disc brake integrated control valve assembly (2) is provided with a main system pressure measuring assembly, a safety clamp pressure measuring assembly and a working clamp pressure measuring assembly; The main system pressure measuring assembly, the safety clamp pressure measuring assembly and the working clamp pressure measuring assembly are connected to the control panel via signals so as to display the main system pressure, the safety clamp pressure and the working clamp pressure on the control panel.

8. The disc brake integrated control valve box for drilling drawworks according to claim 7, characterized in that: The main system pressure measuring assembly comprises a main system pressure measuring joint and a main system pressure sensor; The main system pressure measuring joint and the main system pressure sensor are connected to the oil supply pipeline to monitor the main system pressure; The main system pressure sensor signal is connected to the control panel to display the main system pressure on the control panel.

9. The disc brake integrated control valve box for drilling drawworks according to claim 7, characterized in that: The safety clamp pressure measuring assembly comprises a safety clamp pressure measuring joint and a safety clamp pressure sensor; The safety clamp pressure measuring joint and the safety clamp pressure sensor are connected to the three-way ball valve (4); The safety clamp pressure sensor signal is connected to the control panel so as to display the safety clamp pressure on the control panel.

10. The disc brake integrated control valve box for drilling drawworks according to claim 7, characterized in that: The working clamp pressure measuring assembly comprises a working clamp pressure measuring joint and a working clamp pressure sensor; The working tongs pressure measuring joint and the working tongs pressure sensor are connected to the oil port of the working tongs; The working clamp pressure measuring joint and the working clamp pressure sensor are connected to the control panel so as to display the working clamp pressure on the control panel.

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