Drilling machine anti-jamming integrated valve control system and two-stage anti-jamming working method

Abstract

The invention discloses a drilling machine anti-jamming integrated valve control system and a secondary anti-jamming working method, relates to a coal mine punching related operation method, and mainly comprises a drilling machine, the drilling machine anti-jamming integrated valve control system and the secondary anti-jamming working method. An oil outlet of the hydraulic pump is connected with an oil inlet of the anti-blocking pile-up valve through a high-pressure oil pipe; the anti-jamming integrated valve comprises a pressure reducing valve, a sequence valve and a hydraulic reversing valve, so that the movement requirement of a drilling machine executing mechanism is met, the reliability of an anti-jamming system is improved, and the sequence valve controls the oil pressure of a feeding oil cylinder oil way according to the comparison result of the oil pressure of a rotary motor oil way and a first-stage anti-jamming oil pressure threshold value. According to the anti-jamming integrated valve control system of the drilling machine and the two-stage anti-jamming working method, the feeding oil cylinder conducts decompression feeding or pulling, the effective anti-jamming effect is achieved, the construction safety is improved, the principle is simple, operation is convenient, the problem of jamming of the drilling machine is effectively solved from the hydraulic transmission principle, and the drilling construction efficiency and the hole forming quality of a coal mine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to coal mine drilling, and in particular to a drilling rig anti-sticking integrated valve control system and a secondary anti-sticking working method. Background Art

[0002] Coal mine drilling construction conditions are complex and drill sticking accidents are very likely to occur. Existing methods generally control the drill speed or retraction based on manual experience, but the overall effect is not ideal.

[0003] In order to solve the above problems, reference can be made to the existing technologies, including: Liang Chunmiao's paper "Design of Anti-Stuck Hydraulic System for Soft Coal High-Speed ​​Spiral Drill" published in the journal "Coal Mine Safety" in 2019 designed three different anti-stuck hydraulic system schemes: rotary overpressure feed decompression, rotary overpressure feed retraction, and rotary overpressure feed retraction anti-fluctuation; in addition, there are flaws in the schematic diagram of the rotary overpressure feed retraction circuit; in addition, reference can also be made to the existing technologies: Wang Minghua's utility model patent "Hydraulic Rotary Drilling Rig Anti-Stuck Device" applied for in 2008 (authorized in 2009) (Chinese patent with application number CN200820014909.2 and application date of 2008-08-18), in which the hydraulic rotary drilling rig anti-stuck device designed a hydraulic system, detected the working pressure of the rotary motor through a pressure relay, and controlled the retraction of the feed cylinder.

[0004] Although the above-mentioned systems and methods can prevent drill sticking accidents, there are still certain defects in actual work. Among them, the "anti-drilling hydraulic system design for soft coal high-speed spiral drilling rig" has a relatively large energy consumption during use because the system is a dual system. In addition, the "hydraulic rotary drilling rig anti-drilling device" can be used. This method controls the oil cylinder by detecting the single working pressure of the rotary motor, and is not suitable for complex and changeable drilling conditions and rock conditions.

[0005] Therefore, we propose a drilling rig anti-stuck integrated valve control system and a two-level anti-stuck working method to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a drilling rig anti-stuck integrated valve control system and a two-level anti-stuck working method to solve the problem raised in the above background technology that the anti-stuck drilling device on the market currently controls the oil cylinder by detecting the single working pressure of the rotary motor, is not suitable for complex and changeable drilling conditions and rock conditions, and has relatively high energy consumption.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a drilling rig anti-stuck integrated valve control system and a two-level anti-stuck working method, mainly comprising a drilling rig, a drilling rig anti-stuck integrated valve control system, and a two-level anti-stuck working method, wherein the drilling rig mainly comprises a crawler walking mechanism, a rotary motor, a feed oil cylinder and a drill rod, and the crawler walking mechanism is used to drive the drilling rig to walk; the rotary motor generates a rotary torque to drive the drill rod to rotate; the feed oil cylinder generates a drilling feed force to drive the drill rod to feed, and the drilling rig anti-stuck integrated valve control system comprises an oil tank, a hydraulic pump, a relief valve, a manual reversing valve, and an anti-stuck integrated valve, wherein the oil tank is connected to the oil suction port of the hydraulic pump through an oil inlet pipe; the oil outlet of the hydraulic pump is connected to the oil inlet of the anti-stuck integrated valve through a high-pressure oil pipe, the oil inlet of the pressure reducing valve in the anti-stuck integrated valve is connected to the oil inlet of the relief valve, the oil outlet of the relief valve is connected to the oil tank, and the anti-stuck integrated valve After derrick is driven by derrick of derrick pin, the derrick of derrick pin is turned on, and derrick of derrick pin is turned on.

[0008] Preferably, the sequence valve is of external control and external leakage type.

[0009] Preferably, the hydraulic reversing valve controls the advance and retreat of the feed cylinder based on the comparison result of the oil pressure of the rotary motor oil circuit and the feed cylinder oil circuit. The oil pressure of the rotary motor and the feed cylinder oil circuit act on the control oil circuit of the hydraulic reversing valve respectively. During normal drilling, the rotary oil pressure is less than the feed oil pressure.

[0010] Preferably, the hydraulic pump pumps out high-pressure oil and inputs it into the anti-sticking integrated valve.

[0011] Preferably, the overflow valve controls the oil pressure input by the hydraulic pump to the anti-stuck integrated valve.

[0012] Preferably, the manual reversing valve of the feed cylinder oil circuit controls the extension and retraction of the feed cylinder piston rod.

[0013] Preferably, the manual reversing valve of the rotary motor oil circuit controls the forward and reverse rotation of the rotary motor. The manual reversing valve includes a manual reversing valve a and a manual reversing valve b. The oil inlet of the manual reversing valve a is connected to the pressure reducing valve and the sequence valve, the oil outlet is connected to the oil feed cylinder, and the oil return port is connected to the oil tank. The oil outlet of the manual reversing valve b is connected to the rotary motor.

[0014] Preferably, the feed oil cylinder is used to drive the drill rod for drilling construction.

[0015] Preferably, the rotary motor drives the drill rod to rotate.

[0016] A secondary anti-sticking working method of a drilling rig anti-sticking integrated valve control system comprises the following steps: When the anti-stuck integrated valve is working normally, the oil inlet pressure of the rotary motor is lower than the first-level anti-stuck oil pressure threshold, that is, the opening pressure of the sequence valve, and the opening pressure of the sequence valve is lower than the oil inlet pressure to the oil cylinder.

[0017] First, the hydraulic pump pumps out high-pressure oil, the overflow valve regulates the oil pressure pumped into the system, and delivers it to the feed cylinder and rotary motor oil circuit.

[0018] The oil supplied to the feed cylinder's oil circuit is then reduced in pressure by a pressure reducing valve and split into two branches: one branch is supplied to the manual reversing valve, where it then passes through the hydraulic reversing valve to drive the feed cylinder; the other branch is supplied to the sequence valve's oil inlet, whose outlet is connected to the tank. The sequence valve's control port is connected to the swing motor's working oil circuit. The oil pressure at this port is compared with the swing motor's first-stage anti-stuck oil pressure threshold to regulate the feed cylinder's operating pressure. This threshold can be set based on specific operating conditions and rock characteristics. When the anti-stuck integrated valve is functioning properly, the oil pressure at the sequence valve's control port is lower than this threshold. The hydraulic reversing valve is a two-position, four-way directional valve. Its left and right control ports are connected to the feed cylinder's working oil circuit and the swing motor's working oil circuit, respectively. Therefore, the valve is actuated to the left or right position by comparing the left and right control oil pressures. When the anti-stuck integrated valve is functioning properly, the swing motor's inlet pressure is lower than the feed cylinder's inlet pressure, causing the hydraulic reversing valve to operate in the right position.

[0019] When the manual reversing valve works in the left position, the high-pressure oil enters the rodless chamber of the feed cylinder through the manual reversing valve, while the oil in the rod chamber of the feed cylinder returns to the oil tank after passing through the manual reversing valve, and the piston rod of the feed cylinder extends to realize drilling and punching construction.

[0020] When the oil pressure at the sequence valve control port, that is, the oil pressure in the swing oil circuit, is greater than the first-level anti-sticking oil pressure threshold, the sequence valve opens, causing the high-pressure oil in the oil circuit to be decompressed after passing through the sequence valve, thereby achieving decompression drilling and achieving the first-level anti-sticking. When the working oil pressure in the swing motor oil circuit is lower than the first-level anti-sticking oil pressure threshold, the sequence valve closes and the working oil pressure in the oil circuit to be restored.

[0021] When the first-stage anti-jamming function fails, the oil pressure in the swing motor circuit continues to rise. When this pressure exceeds the pressure in the feed cylinder circuit, the hydraulic reversing valve is driven to the left, shifting the feed cylinder from drilling to extraction, thus achieving the second-stage anti-jamming function. When the second-stage jam is resolved, the hydraulic reversing valve returns to the right position, and the feed cylinder enters the decompression drilling state. When the oil pressure drops to the first-stage anti-jamming threshold, the feed cylinder resumes normal drilling.

[0022] When the manual reversing valve is in the right position, the high-pressure oil enters the rod chamber of the feed cylinder through the manual reversing valve, while the oil in the rodless chamber of the feed cylinder returns to the oil tank after passing through the manual reversing valve, and the piston rod of the feed cylinder retracts to realize the retraction of the drill rod.

[0023] Furthermore, the oil supplied to the swing motor oil circuit enters the manual reversing valve, ultimately driving the swing motor. Before the high-pressure oil in this circuit enters the manual reversing valve, a portion of it connects to the control port of the sequence valve. After passing through the manual reversing valve, a portion of the high-pressure oil connects to the right control port of the hydraulic reversing valve.

[0024] When the manual reversing valve works in the left position, the high-pressure oil enters the left chamber of the rotary motor through the manual reversing valve, and the oil in the right chamber of the rotary motor returns to the oil tank after passing through the manual reversing valve. The rotary motor rotates forward to realize rotary drilling construction.

[0025] When the manual reversing valve is working in the right position, the high-pressure oil enters the right chamber of the rotary motor through the manual reversing valve, and the oil in the left chamber of the rotary motor returns to the oil tank after passing through the manual reversing valve, and the rotary motor reverses to realize the reversal of the drill pipe.

[0026] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a two-level anti-stuck solution based on the two-level oil pressure threshold of the rotary oil circuit, which enables the feed cylinder to reduce pressure to feed or pull out, plays an effective anti-stuck role, and improves construction safety.

[0027] (2) The present invention has a simple working principle and is easy to operate. It effectively solves the drill sticking problem based on the hydraulic transmission principle and improves the efficiency and hole quality of coal mine drilling construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the hydraulic anti-stuck circuit of the present invention; Figure 2 It is a schematic diagram of the mainframe structure of the drilling rig of the present invention.

[0029] In the figure: 1. Oil tank; 2. Hydraulic pump; 3. Overflow valve; 4. Pressure reducing valve; 5. Sequence valve; 6. Manual reversing valve; 7. Hydraulic reversing valve; 8. Feed cylinder; 9. Rotary motor; 10. Drill rod; 11. Crawler walking mechanism. DETAILED DESCRIPTION

[0030] See also Figure 1 and attached Figure 2 The present invention provides the following technical solutions: a drilling rig anti-stuck integrated valve control system and a secondary anti-stuck working method.

[0031] Example 1: In order to solve the problem that the current anti-drilling device on the market controls the feed of oil cylinder 8 by detecting the single working pressure of rotary motor 9, is not suitable for complex and changeable drilling conditions and lithological conditions, and has high energy consumption, please refer to the attached Figure 1 , pressure reducing valve 4, sequence valve 5, hydraulic reversing valve 7, hydraulic pump 2, overflow valve 3, manual reversing valve 6, feed cylinder 8, rotary motor 9, among which the pressure reducing valve 4, sequence valve 5, hydraulic reversing valve 7 form an anti-stuck integrated valve; the pressure reducing valve 4 reduces the oil pressure of the oil circuit input to the feed cylinder 8 to meet the working pressure requirement of the feed cylinder 8; the sequence valve 5 is an externally controlled external leakage type, which controls the oil pressure of the oil circuit of the feed cylinder 8 according to the comparison result of the oil pressure of the oil circuit of the rotary motor 9 and the first-level anti-stuck oil pressure threshold; the hydraulic reversing valve 7 controls the oil pressure of the oil circuit of the feed cylinder 8 according to the comparison result of the oil pressure of the oil circuit of the rotary motor 9 and the first-level anti-stuck oil pressure threshold The comparison result controls the advance and retreat of the feed cylinder 8. The oil pressure of the rotary motor 9 and the feed cylinder 8 oil circuit respectively acts on the control oil circuit of the hydraulic reversing valve 7. During normal drilling, the rotary oil pressure is less than the feed oil pressure; the hydraulic pump 2 pumps out high-pressure oil and inputs it into the system; the relief valve 3 controls the oil pressure pumped into the system by the hydraulic pump 2; the manual reversing valve 6a of the feed cylinder 8 oil circuit controls the extension and retraction of the feed cylinder 8 piston rod; the manual reversing valve 6b of the rotary motor 9 oil circuit controls the forward and reverse rotation of the rotary motor 9; the feed cylinder 8 is used to drive the drill rod 10 for drilling construction; the rotary motor 9 drives the drill rod 10 to rotate.

[0032] When the manual reversing valve 6 works in the left position, the high-pressure oil enters the left chamber of the rotary motor 9 through the manual reversing valve 6, and the oil in the right chamber of the rotary motor 9 returns to the oil tank 1 after passing through the manual reversing valve 6. The rotary motor 9 rotates forward to realize rotary drilling construction. When the manual reversing valve 6 works in the right position, the high-pressure oil enters the right chamber of the rotary motor 9 through the manual reversing valve 6, and the oil in the left chamber of the rotary motor 9 returns to the oil tank 1 after passing through the manual reversing valve 6. The rotary motor 9 reverses to realize the reversal of the drill rod 10, thereby enabling different complex and changeable drilling conditions and rock conditions and solving the problem of relatively high energy consumption.

[0033] Embodiment 2: This embodiment is different from the embodiment in that this embodiment is a two-stage anti-stuck working method. When the anti-stuck integrated valve is working normally, the oil inlet pressure of the rotary motor 9 is less than the first-stage anti-stuck oil pressure threshold, that is, the opening pressure of the sequence valve 5, and the opening pressure of the sequence valve 5 is lower than the oil inlet pressure of the feed cylinder 8; first, the hydraulic pump 2 pumps out high-pressure oil, and the oil pressure pumped into the system is regulated by the overflow valve 3, and is delivered to the feed cylinder 8 and the rotary motor 9 oil circuit; then, the oil delivered to the feed cylinder 8 oil circuit is reduced in pressure by the pressure reducing valve 4 and is divided into two branches: one is delivered to the manual reversing valve 6, and then drives the feed cylinder 8 to move after passing through the hydraulic reversing valve 7; the other is delivered to the oil inlet of the sequence valve 5, and the oil outlet of the sequence valve 5 is connected to the oil tank 1; the sequence valve The control oil port of 5 is connected to the working oil circuit of the rotary motor 9. The oil pressure of this oil port is compared with the first-level anti-stuck oil pressure threshold of the rotary motor 9 to regulate the working pressure of the feed cylinder 8. This threshold can be set accordingly according to the specific working conditions and rock properties; when the anti-stuck integrated valve is working normally, the oil pressure of the control oil port of the sequence valve 5 is less than the threshold; the hydraulic reversing valve 7 is a two-position four-way reversing valve, the left and right control oil ports of the valve are respectively connected to the working oil circuit of the feed cylinder 8 and the working oil circuit of the rotary motor 9. Therefore, the valve is driven to work in the left or right position by comparing the control oil pressures on the left and right sides; when the anti-stuck integrated valve is working normally, the oil inlet pressure of the rotary motor 9 is lower than the oil inlet pressure of the feed cylinder 8, so the hydraulic reversing valve 7 works in the right position; when the manual reversing valve When 6 works in the left position, the high-pressure oil enters the rodless chamber of the feed cylinder 8 through the manual reversing valve 6, and the oil in the rod chamber of the feed cylinder 8 returns to the oil tank 1 after passing through the manual reversing valve 6, and the piston rod of the feed cylinder 8 extends to realize drilling and punching construction; when the oil pressure of the oil port controlled by the sequence valve 5, that is, the oil pressure of the rotary oil circuit is greater than the first-level anti-stuck oil pressure threshold, the sequence valve 5 opens, so that the high-pressure oil in the oil circuit of the feed cylinder 8 is reduced in pressure after passing through the sequence valve 5, thereby realizing reduced-pressure drilling and realizing the first-level anti-stuck; when the working oil pressure of the rotary motor 9 oil circuit is lower than the first-level anti-stuck oil pressure threshold, the sequence valve 5 is closed, and the working oil pressure of the feed cylinder 8 oil circuit is restored; when the first-level anti-stuck fails, the oil pressure of the rotary motor 9 oil circuit continues to rise; when the oil pressure exceeds the first-level anti-stuck oil pressure threshold, the sequence valve 5 is opened, and the high-pressure oil in the oil circuit of the feed cylinder 8 is reduced in pressure When the oil pressure is high, the hydraulic reversing valve 7 is driven to reverse, and the hydraulic reversing valve 7 is switched to the left position, so that the feed cylinder 8 is converted from drilling to pulling, thereby realizing the second level anti-stuck; when the second level drill jam is released, the hydraulic reversing valve 7 is switched back to the right position, and the feed cylinder 8 enters the decompression drilling construction state; when the oil pressure drops to the first level anti-stuck oil pressure threshold, the feed cylinder 8 resumes the normal drilling state; when the manual reversing valve 6 works in the right position, the high-pressure oil enters the rod chamber of the feed cylinder 8 through the manual reversing valve 6, and the oil in the rodless chamber of the feed cylinder 8 returns to the oil tank 1 after passing through the manual reversing valve 6, and the piston rod of the feed cylinder 8 retracts, realizing the retreat of the drill rod 10; in addition, the oil delivered to the oil circuit of the rotary motor 9 enters the manual reversing valve 6, and finally drives the rotary motor 9 to move;Before the high-pressure oil in this oil circuit enters the manual reversing valve 6 of this oil circuit, a portion of the oil is connected to the control oil port of the sequence valve 5. After passing through the manual reversing valve 6, a portion of the high-pressure oil is connected to the right-position control oil port of the hydraulic reversing valve 7. When the manual reversing valve 6 is operating in the left position, the high-pressure oil passes through the manual reversing valve 6 and enters the left chamber of the rotary motor 9, while the oil in the right chamber of the rotary motor 9 passes through the manual reversing valve 6 and returns to the oil tank 1, causing the rotary motor 9 to rotate forward, achieving rotary drilling construction. When the manual reversing valve 6 is operating in the right position, the high-pressure oil passes through the manual reversing valve 6 and enters the right chamber of the rotary motor 9, while the oil in the left chamber of the rotary motor 9 passes through the manual reversing valve 6 and returns to the oil tank 1, causing the rotary motor 9 to reverse, achieving reverse rotation of the drill pipe 10.

[0034] Example 3: This example is an anti-stuck drill used in coal mine drilling. Figure 2 It mainly includes a crawler walking mechanism 11, a rotary motor 9, a feed cylinder 8 and a drill rod 10, wherein the crawler walking mechanism 11 is used to drive the drilling rig to move; the rotary motor 9 generates a rotary torque to drive the drill rod 10 to rotate; the feed cylinder 8 generates a drilling feed force to drive the drill rod 10 to feed.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling rig anti-stuck integrated valve control system and a secondary anti-stuck working method, mainly comprising a drilling rig, a drilling rig anti-stuck integrated valve control system, and a secondary anti-stuck working method, wherein: The drilling rig mainly includes a crawler walking mechanism (11), a rotary motor (9), a feed oil cylinder (8) and a drill rod (10), wherein the crawler walking mechanism (11) is used to drive the drilling rig to move; the rotary motor (9) generates a rotary torque to drive the drill rod (10) to rotate; the feed oil cylinder (8) generates a feed force for drilling to drive the drill rod (10) to feed. The drilling rig anti-stuck integrated valve control system includes an oil tank (1), a hydraulic pump (2), a relief valve (3), a manual reversing valve (4), and an anti-stuck integrated valve, wherein the oil tank (1) is connected to the oil suction port of the hydraulic pump (2) through an oil inlet pipe; The invention is characterized in that: the oil outlet of the hydraulic pump (2) is connected to the oil inlet of the anti-stuck integrated valve through a high-pressure oil pipe, the pressure reducing valve (4) in the anti-stuck integrated valve is connected to the oil inlet of the overflow valve (3), the oil outlet of the overflow valve (3) is connected to the oil tank (1), the oil outlet of the pressure reducing valve (4) in the anti-stuck integrated valve is connected to the oil inlet of the sequence valve (5) and the oil inlet of the reversing valve (6)a in the anti-stuck integrated valve, the control oil port of the sequence valve (5) in the anti-stuck integrated valve is connected to the oil outlet of the hydraulic pump (2) and the oil inlet of the reversing valve (6a), the oil outlet of the sequence valve (5) in the anti-stuck integrated valve is connected to the oil tank (1), and the oil inlet of the hydraulic reversing valve (7) in the anti-stuck integrated valve is connected to the oil inlet of the hydraulic reversing valve (7) in the anti-stuck integrated valve. The oil outlet of the reversing valve (6) a is connected, the left position control oil port and the right position control oil port of the hydraulic reversing valve (7) in the anti-stuck integrated valve are respectively connected to the oil inlet of the hydraulic reversing valve (7) and the oil inlet of the rotary motor (9), and the oil return port of the hydraulic reversing valve (7) in the anti-stuck integrated valve is connected to the oil tank (1); the anti-stuck integrated valve includes a pressure reducing valve (4), a sequence valve (5) and a hydraulic reversing valve (7), the pressure reducing valve (4) reduces the oil pressure of the oil circuit input to the oil cylinder (8) to meet the working pressure requirement of the oil cylinder (8), and the sequence valve (5) controls the oil pressure of the oil circuit of the oil cylinder (8) according to the comparison result of the oil pressure of the oil circuit of the rotary motor (9) and the first-level anti-stuck oil pressure threshold.

2. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The sequence valve (5) is of external control and external leakage type.

3. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The hydraulic reversing valve (7) controls the forward and backward movement of the feed oil cylinder (8) according to the comparison result between the oil pressure of the rotary motor (9) oil circuit and the feed oil cylinder (8) oil circuit. The oil pressures of the rotary motor (9) and the feed oil cylinder (8) oil circuits act on the control oil circuit of the hydraulic reversing valve (7) respectively. During normal drilling, the rotary oil pressure is lower than the feed oil pressure.

4. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The hydraulic pump (2) pumps out high-pressure oil and inputs it into the anti-sticking integrated valve.

5. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The overflow valve (3) controls the oil pressure input from the hydraulic pump (2) to the anti-sticking integrated valve.

6. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The manual reversing valve (6) of the oil circuit of the oil feed cylinder (8) controls the extension and retraction of the piston rod of the oil feed cylinder (8).

7. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The manual reversing valve (6) of the oil circuit of the rotary motor (9) controls the forward and reverse rotation of the rotary motor (9). The manual reversing valve (6) includes a manual reversing valve (6) a and a manual reversing valve (6) b. The oil inlet of the manual reversing valve (6) a is connected to the pressure reducing valve (4) and the sequence valve (3), the oil outlet is connected to the oil feed cylinder (8), and the oil return port is connected to the oil tank (1). The oil outlet of the manual reversing valve (6) b is connected to the rotary motor (9).

8. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The feed oil cylinder (8) is used to drive the drill rod (10) for drilling construction.

9. The drilling rig anti-sticking integrated valve control system and secondary anti-sticking working method according to claim 1 is characterized by: The rotary motor (9) drives the drill rod (10) to rotate.

10. A secondary anti-sticking working method for a drilling rig anti-sticking integrated valve control system, characterized in that: The following steps are involved: When the anti-stuck integrated valve is operating normally, the oil inlet pressure of the rotary motor (9) is less than the first-stage anti-stuck oil pressure threshold, that is, the opening pressure of the sequence valve (5), and the opening pressure of the sequence valve (5) is lower than the oil inlet pressure of the oil cylinder (8); The hydraulic pump (2) pumps out high-pressure oil, the oil pressure of which is regulated by the overflow valve (3) and then delivered to the oil circuits of the feed cylinder (8) and the rotary motor (9); When the oil pressure of the oil port controlled by the sequence valve (5), that is, the oil pressure of the rotary oil circuit is greater than the first-level oil pressure threshold, the sequence valve (5) opens, so that the high-pressure oil in the oil circuit of the oil cylinder (8) is reduced in pressure after passing through the sequence valve (5), thereby achieving reduced-pressure drilling and realizing the first-level anti-stuck; when the working oil pressure of the oil circuit of the rotary motor (9) is lower than the first-level anti-stuck oil pressure threshold, the sequence valve (5) closes, and the working oil pressure of the oil circuit of the oil cylinder (8) is restored; When the first-stage anti-stuck fails, the oil pressure of the rotary motor (9) oil circuit continues to increase; when the oil pressure exceeds the oil pressure of the feed oil cylinder (8) oil circuit, the hydraulic reversing valve (7) is driven to reverse, and the hydraulic reversing valve (7) is switched to the left position, so that the feed oil cylinder (8) is switched from drilling to pulling, thereby achieving the second-stage anti-stuck; when the second-stage drill jam is released, the hydraulic reversing valve (7) is switched back to the right position, and the feed oil cylinder (8) enters the decompression drilling construction state; when the oil pressure drops to the first-stage anti-stuck oil pressure threshold, the feed oil cylinder (8) returns to the normal drilling state.

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