Driving speed control anti-collision device for traveling block of drilling machine

Abstract

The utility model relates to the technical field of well drilling machinery, in particular to an upward running speed control anti-collision device of a drilling rig runner wagon. The speed-control anti-collision device comprises a traveling block of the drilling machine and a winch for driving the traveling block to move upwards, the winch is provided with the speed-control anti-collision device, and the speed-control anti-collision device comprises a main control loop, a speed regulation loop and a brake loop which are connected with a driller room. The main control loop comprises an anti-explosion control box located in a driller room. The speed regulation loop comprises a speed regulation module located in the driller room and a rotating speed regulation potentiometer located on the side portion of the winch. The brake loop comprises a brake control module located in the driller room and a brake actuator located on the side portion of the winch. A closed-loop control system is formed through the main control loop, the speed regulation loop and the brake loop, the traveling speed and position of the traveling block are monitored in real time, multiple protection is achieved, overspeed and collision accidents are effectively prevented, and the safety of drilling machine operation is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drilling machinery, and specifically relates to a drilling rig travelling block uplink speed control anti-collision device. BACKGROUND

[0002] In drilling operations, the winch drives the travelling block through a transmission device, and the maximum speed is adjusted by a potentiometer handwheel in the range of 0-100. The high / low speed operation of the travelling block controls the on-off of compressed air in the two-way air pipeline by a high / low speed gas switch, and then controls the high / low speed clutch of the transmission link. In the prior art, the anti-collision crown block device is provided with a warning and brake height. When the travelling block goes up to the warning height, a signal is sent, and when it reaches the brake height, the brake is immediately applied and an alarm is given. For example, the automatic control device disclosed in Chinese patent CN214243594U receives the encoder signal through the winch central processing module, calculates the current position and compares it with the preset safe position to control the speed of the travelling block and assist the brake. However, this scheme brakes when the travelling block is going up at high speed, and the large rope is easily damaged and the brake components are easily affected by high temperature. Therefore, it is crucial to slow down in time after the travelling block reaches the warning height to avoid potential accidents. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a drilling rig travelling block uplink speed control anti-collision device.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A drilling rig travelling block uplink speed control anti-collision device, comprising a travelling block of a drilling rig, and a winch for driving the travelling block to go up at a speed, wherein the winch is provided with a speed control anti-collision device, and the speed control anti-collision device comprises a main control loop connected to a driller's cabin, a speed regulation loop, and a brake loop, wherein:

[0006] The main control loop comprises an explosion-proof control box located in the driller's cabin, and the explosion-proof control box is provided with a main control board and a color liquid crystal module, and the main control board is connected to the color liquid crystal module, the speed regulation loop, and the brake loop;

[0007] The speed regulation loop comprises a speed regulation module located in the driller's cabin, and a rotation speed regulation potentiometer located on the side of the winch, and the main control board is connected to the rotation speed regulation potentiometer through the speed regulation module, and the rotation speed regulation potentiometer is installed on the main shaft of the winch and used to adjust the rotation speed of the winch to control the uplink speed of the travelling block;

[0008] The brake circuit comprises a brake control module in the driller room and a brake actuator at the side of the drawworks, the main control board is connected with the brake actuator through the brake control module, the brake actuator comprises a brake disc matched with the drawworks and a brake, wherein the brake disc is fixed on both sides of the drum of the drawworks, the brake is connected with the air supply assembly through an electric air control valve, and the electric air control valve is electrically connected with the main control board.

[0009] The main control circuit receives information from the speed adjusting module and the brake control module, and displays the current state through the color liquid crystal module.

[0010] In addition, the drilling rig traveling block uplink speed control and anti-collision device has the following additional technical features according to the above-mentioned drilling rig traveling block uplink speed control and anti-collision device.

[0011] According to an embodiment of the present application, the main control circuit further comprises a loudspeaker, and the loudspeaker is located at the side of the explosion-proof control box.

[0012] The present application increases the loudspeaker to play the height information of the traveling block in real time, so that the operator can more accurately determine the position of the traveling block, and thus take necessary control measures in time to avoid collision accidents.

[0013] According to an embodiment of the present application, the main shaft of the drawworks is provided with a speed encoder, and the speed encoder is electrically connected with the main control board.

[0014] In the technical scheme, the speed encoder is installed at the main shaft of the winch to obtain the rotating speed information of the winch in real time; the rotating speed information measured by the encoder is transmitted to the main control board in real time; and the main control board adjusts in real time according to the actual upward speed of the cage to ensure that the cage ascends at a predetermined speed and avoid dangerous situations such as overspeed or collision.

[0015] According to an embodiment of the utility model, the rotating speed regulating potentiometer adopts a metal shaft backflow rotary potentiometer with a model number of ALPS RK119.

[0016] In the technical scheme, the ALPS RK119 potentiometer can provide stable and accurate resistance value changes, thereby ensuring that the speed regulating loop can accurately adjust the rotating speed of the winch and further control the upward speed of the cage.

[0017] According to an embodiment of the utility model, the brake actuator adopts a horizontal air pressure butterfly type pneumatic brake with a model number of DBH-205.

[0018] In the technical scheme, the horizontal air pressure butterfly type pneumatic brake with the model number of DBH-205 can uniformly distribute the braking force during braking, reduce wear and heat accumulation, and improve braking efficiency and service life.

[0019] According to an embodiment of the utility model, the electric pneumatic valve adopts a pilot type gas valve with a model number of SY7220-4DD-02, the pilot type gas valve includes an electromagnetic controller and a pilot valve assembly, the electromagnetic controller is connected with the main control board, the pilot valve assembly is connected with the gas source assembly and the brake actuator respectively, and the electromagnetic controller controls the valve opening degree of the pilot valve assembly to adjust the brake action of the brake actuator.

[0020] In the technical scheme, the main control board sends a control signal to the electromagnetic controller according to the upward speed and height information of the cage; and the electromagnetic controller controls the gas pressure and flow entering the brake actuator by adjusting the valve opening degree of the pilot valve assembly according to the received signal, so as to accurately adjust the brake action and ensure that the brake is rapid and stable, thereby effectively preventing collision.

[0021] According to an embodiment of the utility model, the side part of the explosion-proof control box is provided with interface terminals, the interface terminals include a three-core shielded cable interface connected with the speed adjusting module, a two-core cable interface connected with the brake control module, and a flat cable interface connected with the color liquid crystal module, the electric pneumatic valve and the speed encoder.

[0022] In the technical solution, the interface terminal of the explosion-proof control box also adopts an explosion-proof sealing ring and an explosion-proof junction box to ensure the explosion-proof performance in a harsh environment. The three-core shielded cable interface in the interface terminal is used to connect the speed adjustment module, effectively shields external electromagnetic interference, and ensures stable transmission of the speed signal; the two-core cable interface is used for the brake control module to ensure the reliability and anti-interference of the signal; and the flat cable interface facilitates parallel transmission of signals and reduces the complexity of the cable.

[0023] According to one embodiment of the utility model, the speed control and collision prevention device further comprises a power supply connected to the explosion-proof control box through the interface terminal.

[0024] The technical solution connects the interface terminal and the explosion-proof control box, and the power supply can stably transmit electric energy to the inside of the control box, ensuring that each functional module such as the speed encoder, the electric pneumatic control valve, and the brake actuator can work normally, and ensuring that the speed control and collision prevention device can continuously and stably provide the required control force during the operation of the drilling rig, effectively preventing the traveling block from overspeeding or colliding.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] (1) The main control circuit, the speed regulation circuit, and the brake circuit form a closed-loop control system to monitor the uplink speed and position of the traveling block in real time, realize multiple protection, effectively prevent overspeeding and collision accidents, and ensure the safety of the drilling rig operation.

[0027] (2) The high-precision components such as the speed encoder, the ALPS RK119 potentiometer, and the DBH-205 brake actuator are used to realize accurate control of the uplink speed of the traveling block. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the structure connection diagram of the utility model.

[0029] Figure 2 is the principle connection block diagram of the utility model.

[0030] In the drawing: 1, explosion-proof control box; 2, main control board; 3, color liquid crystal module; 4, loudspeaker; 5, speed encoder; 6, speed adjustment module; 7, electric pneumatic control valve; 8, speed regulation potentiometer; 9, winch; 10, brake actuator; 11, air source assembly; 12, power supply. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0032] Embodiment 1

[0033] As shown in Figure 1 and Figure 2 The present embodiment provides a drilling rig traveling block uplink speed control anti-collision device, which comprises a traveling block of a drilling rig and a winch 9 for driving the uplink speed of the traveling block. The winch 9 is provided with a speed control anti-collision device. The speed control anti-collision device comprises a main control loop connected with a driller's house, a speed regulation loop and a brake loop. Wherein:

[0034] The main control loop comprises an explosion-proof control box 1 located in the driller's house. The explosion-proof control box 1 is internally provided with a main control board 2 and a color liquid crystal module 3. The main control board 2 is connected with the color liquid crystal module 3, the speed regulation loop and the brake loop respectively.

[0035] The speed regulation loop comprises a speed regulation module 6 located in the driller's house and a rotating speed regulation potentiometer 8 located at the side of the winch 9. The main control board 2 is connected with the rotating speed regulation potentiometer 8 through the speed regulation module 6. The rotating speed regulation potentiometer 8 is installed on the main shaft of the winch 9 and is used for adjusting the rotating speed of the winch 9 so as to control the uplink speed of the traveling block.

[0036] The brake loop comprises a brake control module located in the driller's house and a brake actuator 10 located at the side of the winch 9. The main control board 2 is connected with the brake actuator 10 through the brake control module. The brake actuator 10 comprises a brake disc matched with the winch 9 and a brake. The brake disc is fixed on both sides of the drum of the winch 9. The brake is connected with a gas source assembly 11 through an electrically controlled valve 7. The electrically controlled valve 7 is electrically connected with the main control board 2.

[0037] As shown in Figure 1 and Figure 2As shown, the technical scheme forms a closed-loop control system through the main control loop, the speed regulation loop and the brake loop, which is used for accurately controlling the upgoing speed of the travelling block and preventing collision. Specifically, the main control loop receives information from the speed regulation module 6 and the brake control module, and displays the current state through the color liquid crystal module 3; the main control board 2 controls the state of the speed regulation loop and the brake loop: for example, before the travelling block reaches the pre-warning height, the main control board 2 adjusts the rotating speed of the winch 9 through the speed regulation module 6, greatly reduces the rotating speed of the winch 9 and thus reduces the upgoing speed of the travelling block; for example, when the travelling block reaches the 0.5m range of the anti-collision height, the main control board 2 adjusts the rotating speed of the winch 9 through the speed regulation module 6 again, and the winch 9 drives the travelling block to go up at a slow speed; for example, when the travelling block reaches the collision height, the main control board 2 controls the drum of the winch 9 through the brake control module, so as to realize the brake of the winch 9 in the low-speed running state; for example, when the travelling block goes down and the height is lower than the pre-warning height, the main control board 2 adjusts the rotating speed of the winch 9 through the speed regulation module 6, and exits the speed regulation control state. Wherein, the explosion-proof control box 1 is installed in the driller's cabin, so as to ensure the safety in the flammable and explosive environment; through the speed closed-loop control and the position / speed protection closed-loop control, the multiple protections of the upgoing speed of the travelling block are realized, so as to prevent the occurrence of overspeed and collision accidents; the main control board 2 can monitor the running state of each loop in real time, once the fault or abnormal condition is found, an alarm signal is immediately sent out, and the corresponding protection measures are taken.

[0038] In addition, the drilling rig travelling block upgoing speed regulation anti-collision device has the following additional technical features according to the above-mentioned drilling rig travelling block upgoing speed regulation anti-collision device.

[0039] According to an embodiment of the present application, the main control loop further comprises a loudspeaker 4, the loudspeaker 4 is located at the side of the explosion-proof control box 1, and the loudspeaker 4 feeds back the different upgoing heights of the travelling block through prompt voice.

[0040] In the technical scheme, the height information of the travelling block is played in real time through the loudspeaker 4, the operator can more accurately judge the position of the travelling block, so as to timely take necessary control measures and avoid the occurrence of collision accidents.

[0041] According to an embodiment of the present application, a speed encoder 5 is arranged at the main shaft of the winch 9, and the speed encoder 5 is electrically connected with the main control board 2.

[0042] In the technical scheme, the speed encoder 5 is arranged at the main shaft of the winch 9, and the rotating speed information of the winch 9 is acquired in real time; the rotating speed information measured by the encoder is transmitted to the main control board 2 in real time. The main control board 2 adjusts in real time according to the actual upgoing speed of the travelling block, ensures that the travelling block goes up at a predetermined speed, and avoids the occurrence of dangerous conditions such as overspeed or collision.

[0043] According to one embodiment of the utility model, the rotating speed adjusting potentiometer 8 adopts a metal shaft backflow rotary potentiometer with model ALPS RK119.

[0044] In the technical scheme, the ALPS RK119 potentiometer can provide stable and accurate resistance value change, thereby ensuring that the speed regulation loop can accurately adjust the rotating speed of the winch 9, and further control the uplink speed of the travelling block.

[0045] According to one embodiment of the utility model, the brake actuator 10 adopts a horizontal air pressure butterfly type pneumatic brake with model DBH-205.

[0046] In the technical scheme, the DBH-205 horizontal air pressure butterfly type pneumatic brake can uniformly distribute braking force during braking, reduce wear and heat accumulation, and improve braking efficiency and service life.

[0047] According to one embodiment of the utility model, the electric pneumatic control valve 7 adopts a pilot type gas valve with model SY7220-4DD-02, which comprises an electromagnetic controller and a pilot valve assembly.

[0048] In the technical scheme, the main control board 2 sends a control signal to the electromagnetic controller according to the uplink speed and height information of the travelling block.

[0049] According to one embodiment of the utility model, the side of the explosion-proof control box 1 is provided with an interface terminal, which comprises a three-core shielded cable interface connected with the speed adjustment module 6, a two-core cable interface connected with the brake control module, and a flat cable interface connected with the color liquid crystal module 3, the electric pneumatic control valve 7 and the speed encoder 5.

[0050] In the technical scheme, the interface terminal of the explosion-proof control box 1 also adopts an explosion-proof sealing ring and an explosion-proof junction box to ensure the explosion-proof performance in harsh environments.

[0051] According to one embodiment of the utility model, the speed control and anti-collision device further comprises a power supply 12, which is connected to the explosion-proof control box 1 through interface terminals.

[0052] The power supply 12 can stably transmit electric energy to the inside of the control box, ensuring that each functional module can work normally, such as the speed encoder 5, the electric pneumatic control valve 7, the brake actuator 10, etc., and ensuring that the speed control and anti-collision device can continuously and stably provide the required control force during the operation of the drilling rig, effectively preventing the traveling block from overspeeding or colliding.

[0053] The use process of the above embodiment is as follows:

[0054] As shown in Figs. Figure 1 and Figure 2 After the device is started, the explosion-proof control box 1 in the main control loop starts to work, the main control board 2 receives information from the speed adjustment module 6 and the brake control module, and displays the uplink speed, height and other states of the traveling block in real time through the color liquid crystal module 3; at the same time, the speed encoder 5 installed at the main shaft of the winch 9 acquires the rotating speed information of the winch 9 in real time and transmits it to the main control board 2 for real-time adjustment; during the uplink of the traveling block, the main control board 2 adjusts the rotating speed of the winch 9 through the speed adjustment module 6 according to the preset warning height and anti-collision height, thereby controlling the uplink speed of the traveling block; when the traveling block approaches the warning height, the main control board 2 reduces the rotating speed of the winch 9, so that the traveling block slows down; when the traveling block enters the range of 0.5 meters from the anti-collision height, the winch 9 further slows down to drive the traveling block to uplink at a slow speed; if the traveling block continues to uplink and reaches the collision height, the main control board 2 immediately controls the drum brake of the winch 9 through the brake control module, so as to realize the smooth braking of the winch 9 in the low-speed running state; at the same time, if the traveling block is downlinking and the height is lower than the warning height, the main control board 2 also adjusts the rotating speed of the winch 9 through the speed adjustment module 6, so that the traveling block exits the speed control state; in addition, the device is also provided with a loudspeaker 4, which plays the height information of the traveling block in real time, helping the operator to accurately determine the position of the traveling block and take necessary control measures in time; the interface terminals of the explosion-proof control box 1 adopt safety measures such as explosion-proof sealing rings and explosion-proof junction boxes, so as to ensure stable operation in harsh environments; the power supply 12 is connected to the explosion-proof control box 1 through the interface terminals, providing stable electric energy supply for each functional module; in summary, the uplink speed control and anti-collision device for the traveling block of the drilling rig realizes the control of the uplink speed of the traveling block and the anti-collision protection through a closed-loop control system, ensuring the safety of the operation of the drilling rig.

[0055] It should be noted that the algorithms adopted by the main control board 2 all belong to conventional technologies, the utility model only improves the hardware structure and does not innovate the software, which meets the protection object of the utility model.

[0056] Although the utility model is described in detail by referring to the drawings and in conjunction with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, those skilled in the art can make various equivalent modifications or replacements to the embodiments of the utility model, and these modifications or replacements should be within the scope of the utility model. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, and these changes or replacements should be within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A drilling rig traveling block uplink speed control anti-collision device, comprising a traveling block of a drilling rig, and a winch (9) driving the uplink speed of the traveling block, characterized in that, The winch (9) is provided with a speed control and anti-collision device, which comprises a main control circuit connected with the driller's house, a speed regulation circuit and a brake circuit. The main control circuit comprises an explosion-proof control box (1) in the driller's house, wherein the explosion-proof control box (1) is provided with a main control board (2) and a color liquid crystal module (3), and the main control board (2) is connected with the color liquid crystal module (3), the speed regulation circuit and the brake circuit respectively. The speed regulation circuit comprises a speed regulation module (6) in the driller's house and a rotating speed regulation potentiometer (8) on the side of the winch (9), and the main control board (2) is connected with the rotating speed regulation potentiometer (8) through the speed regulation module (6), the rotating speed regulation potentiometer (8) is installed on the main shaft of the winch (9) and used for adjusting the rotating speed of the winch (9) to control the upward speed of the travelling block. The brake circuit comprises a brake control module in the driller's house and a brake actuator (10) on the side of the winch (9), and the main control board (2) is connected with the brake actuator (10) through the brake control module, the brake actuator (10) comprises a brake disc matched with the winch (9) and a brake, wherein the brake disc is fixed on both sides of the drum of the winch (9), the brake is connected with a gas source assembly (11) through an electrically controlled valve (7), and the electrically controlled valve (7) is electrically connected with the main control board (2).

2. The drilling rig traveling block uplink speed bumping device of claim 1, wherein, The main control circuit further comprises a loudspeaker (4) on the side of the explosion-proof control box (1), and the loudspeaker (4) feeds back different upward heights of the travelling block through prompt voice.

3. The drilling rig traveling block uplink speed bumping device of claim 1, wherein, The main shaft of the winch (9) is provided with a speed encoder (5) electrically connected with the main control board (2).

4. The rig traveling unit uplink speed control anti-collision device of claim 1, wherein, The rotating speed regulation potentiometer (8) is an ALPS RK119 metal shaft backflow rotary potentiometer.

5. The drilling rig traveling block uplink speed bumping device of claim 1, wherein, The brake actuator (10) is a DBH-205 horizontal air butterfly pneumatic brake.

6. The drilling rig traveling block uplink speed bumping device of claim 1, wherein, The electrically controlled valve (7) is a SY7220-4DD-02 pilot gas valve, which comprises an electromagnetic controller and a pilot valve assembly, the electromagnetic controller is connected with the main control board (2), the pilot valve assembly is connected with the gas source assembly (11) and the brake actuator (10) respectively, and the electromagnetic controller controls the valve opening degree of the pilot valve assembly to adjust the brake action of the brake actuator (10).

7. The drilling rig traveling block uplink speed bumping device of claim 1, wherein, The side of the explosion-proof control box (1) is provided with an interface terminal, which comprises a three-core shielded cable interface connected with the speed regulation module (6), a two-core cable interface connected with the brake control module, and a flat cable interface connected with the color liquid crystal module (3), the electrically controlled valve (7) and the speed encoder (5).

8. The drilling rig traveling block uplink speed bumping device of claim 7, wherein, The speed control and anti-collision device further comprises a power supply (12) connected with the explosion-proof control box (1) through the interface terminal.

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