Oil valve control system and method for oil-electric hybrid workover rig

Abstract

The invention discloses an accelerator control system and method for an oil-electric hybrid workover rig, and the control system comprises a combined pressure regulating valve, a diaphragm cylinder, a roller clutch, a rotary air guide faucet, a quick exhaust valve, a pneumatic control reversing valve, a shuttle valve, a two-position three-way electromagnetic valve, a connecting rod mechanism and an accelerator controller, the connecting rod mechanism is connected with the accelerator controller; the combined pressure regulating valve is connected with the diaphragm cylinder; the roller clutch, the rotary air guide faucet, the quick exhaust valve, the pneumatic control reversing valve and the shuttle valve are connected in sequence; an electric accelerator handle is pushed, roller hanging is achieved through gas circuit control, and then the accelerator acceleration function is achieved. The situation that a user forgets to operate a motor accelerator when hanging the roller during manual operation can be avoided, the situation that the user forgets to disengage the clutch after manual operation can also be avoided, the operation process is simplified, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of onboard devices for workover rigs, and in particular to a throttle control system and method for an oil-electric hybrid power workover rig. Background Art

[0002] The tire-type workover rig is the most important vehicle-mounted device in well workover operations. During operation, the chassis engine or main drive motor transmits power to the angle transmission box through the transfer case, drives the main drum to rotate, and drives the workover rig's swimming system to operate through the wire rope. The rotation of the main drum is achieved by controlling the clutch, which is usually controlled by the air valve on the control box. When the chassis engine is operating, the clutch engagement and throttle control can be controlled simultaneously through the combined pressure regulating valve, but when the main drive motor is used, the drum clutch and the motor throttle need to be controlled separately, which affects the operating efficiency, and there is a problem of forgetting to engage the clutch. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a throttle control system and method for an oil-electric hybrid workover rig, which can realize automatic engagement and disengagement of the drum clutch by operating the throttle of the main drive motor when the workover rig is driven by a chassis engine or electrically driven, thereby simplifying the operation process and improving the operation efficiency.

[0004] Technical solution: A throttle control system for an oil-electric hybrid workover rig, which pushes the electric throttle handle, realizes the drum engagement through air circuit control, and then realizes the throttle acceleration function, including a combined pressure regulating valve, a diaphragm cylinder, a drum clutch, a rotary air guide tap, a quick exhaust valve, a gas-controlled reversing valve, a shuttle valve, a two-position three-way solenoid valve, a connecting rod mechanism and a throttle controller, wherein the cylinder rod of the diaphragm cylinder is connected to the connecting rod mechanism, and the connecting rod mechanism is connected to the throttle controller; the combined pressure regulating valve is connected to the diaphragm cylinder; the drum clutch, the rotary air guide tap, the quick exhaust valve, the gas-controlled reversing valve and the shuttle valve are connected in sequence;

[0005] When the electric throttle is working, the air pressure signal of the combined pressure regulating valve is output through the shuttle valve, and the drum clutch is engaged by controlling the opening of the combined pressure regulating valve handle;

[0006] When the engine throttle is working, the air pressure signal of the two-position three-way solenoid valve is output through the shuttle valve, and the drum clutch is engaged by controlling the opening of the motor throttle handle.

[0007] Furthermore, when the handle of the combined pressure regulating valve is in the middle position, there is no air pressure output;

[0008] When the operating handle is pushed forward to 10°, there is air pressure at port A connected to the shuttle valve, but there is no air pressure at ports B and C; when the angle exceeds 10°, the air pressure at port C gradually increases from 0 to the air source pressure;

[0009] When the handle is operated in reverse, there is air pressure at port B, but no air pressure at ports A and C. When the angle exceeds 10°, the air pressure at port C gradually increases from 0 to the air source pressure.

[0010] Furthermore, when there is air pressure at the air pressure input port of the two-position three-way solenoid valve, the two-position three-way solenoid valve is energized and reversed, and the A1 port connected to the shuttle valve outputs air pressure; the two-position three-way solenoid valve loses power and returns to the initial position, and the air pressure is discharged from the R1 port.

[0011] The implementation method of any of the above-mentioned oil-electric hybrid workover rig throttle control systems includes two working conditions: when the chassis engine drives the workover rig and when the electric drive workover rig operates;

[0012] 1) The steps to achieve the operation of the chassis engine driven workover rig are as follows:

[0013] SD1, operate the handle of the combined pressure regulating valve, and push the handle of the combined pressure regulating valve from the middle position to a position exceeding 10° to engage the drum clutch and complete the upward lifting movement of the traveling block hook;

[0014] SD2, controls the lifting speed of the traveling block hook by controlling the rotation angle of the combined pressure regulating valve handle:

[0015] When the handle is rotated at an angle of 10°, the lifting speed of the traveling block hook is 0; when the handle is rotated at an angle of more than 10°, as the handle is rotated at an angle of more than 10°, the output pressure of the combined pressure regulating valve gradually increases, the tension of the diaphragm cylinder gradually increases, the chassis throttle gradually increases from idle speed, and the lifting speed of the traveling block hook gradually increases;

[0016] SD3, operate the combined pressure regulating valve handle back to the middle position, and the traveling block hook stops moving;

[0017] SD4, slowly lift the drum brake handle, and the traveling block hook slowly falls down by its own weight;

[0018] 2) The steps to implement the electric drive workover rig operation are as follows:

[0019] SF1, operate the motor throttle handle, the two-position three-way solenoid valve is energized, and by controlling the opening of the motor throttle handle, the drum clutch 3 is engaged to complete the upward lifting movement of the traveling block hook;

[0020] SF2, controls the lifting speed of the traveling block hook by controlling the rotation angle of the motor throttle handle:

[0021] When the motor throttle handle rotates to 15°, the hook lifting speed is 0; when the handle rotates to 30°, the hook lifting speed is 750r / min; when the handle rotates to 45°, the hook lifting speed is 1500r / min; when the handle rotates to 60°, the hook lifting speed is 2250r / min; when the handle rotates to 75°, the hook lifting speed is 3000r / min;

[0022] SF3, operate the throttle handle of the combined motor, the motor output speed is zero, and the traveling block hook stops moving;

[0023] SF4, slowly lift the drum brake handle, and the traveling block hook slowly falls down by its own weight.

[0024] Furthermore, when the electric drive workover rig is operating, the throttle operating handle of the main drive motor is pushed, and the drum clutch engagement function is realized in the range of 0° to 15°, and the motor acceleration function is realized in the range of 15° to 75°;

[0025] Slowly push the motor throttle handle. The analog signal output in the range of 10° to 15° is converted by the controller and a 24V voltage signal is output to energize the two-position three-way solenoid valve to complete the engagement function of the drum clutch. Continue to push the motor throttle handle forward. After exceeding 15°, the analog signal output is converted by the controller and output to the main drive motor to release the drum brake handle. The output power of the main drive motor is switched through the transmission box to drive the drum to rotate, and then the traveling block hook is driven to lift upward through the wire rope.

[0026] Further, in step SF4, a bidirectional motor throttle is selected, and when the motor throttle handle is pulled in the reverse direction to the range of -10° to -15°, the drum is engaged; thereafter, the drum brake handle is released, and the handle is continued to be pushed, and the motor is controlled to rotate in the reverse direction gradually in the range of -15° to -75° to realize the lowering action of the traveling block hook.

[0027] Compared with the prior art, the present invention has the following significant effects:

[0028] 1. The two-position three-way solenoid valve in the present invention realizes gas circuit control through the shuttle valve and the combined pressure regulating valve in parallel, and the main drum and the motor throttle are controlled simultaneously during the operation of the electric drive workover rig by manipulating the motor throttle handle; the present invention can avoid the situation that the motor throttle is forgotten to be operated when the drum is engaged during manual operation, and can also avoid the situation that the clutch is forgotten to be disengaged after the manual operation, thereby simplifying the operation process and improving the operation efficiency;

[0029] 2. In the present invention, the diaphragm cylinder and the throttle controller form a chassis throttle control device through a connecting rod mechanism. By manipulating the combined pressure regulating valve handle in the pneumatic control system, the main drum clutch and the engine throttle can be controlled simultaneously when the chassis engine is used to drive the workover machine to operate, thereby ensuring safe and efficient operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is the principle diagram of the control system of the present invention;

[0031] Figure 2 This is a schematic diagram of the working state of the chassis throttle control device;

[0032] In the figure, 1-combination pressure regulating valve; 2-diaphragm cylinder; 3-drum clutch; 4-rotary air guide faucet; 5-quick exhaust valve; 6-air-controlled reversing valve; 7-shuttle valve; 8-two-position three-way solenoid valve, 10-connecting rod mechanism; 11-throttle controller. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] The principle diagram of the control system of the present invention is as follows: Figure 1 The throttle control system of the oil-electric hybrid workover rig of the present invention comprises a combined pressure regulating valve 1, a diaphragm cylinder 2, a drum clutch 3, a rotary air guide tap 4, a quick exhaust valve 5, an air-controlled reversing valve 6, a shuttle valve 7, a two-position three-way solenoid valve 8, a connecting rod mechanism 10 and a throttle controller 11, wherein the cylinder rod of the diaphragm cylinder 2 is connected to the connecting rod mechanism 10, and the connecting rod mechanism 10 is connected to the throttle controller 11, as shown in FIG. Figure 2 As shown. The combined pressure regulating valve 1 is connected to the diaphragm cylinder 2, the A port of the combined pressure regulating valve 1 is connected to the shuttle valve 7, the shuttle valve 7 is connected to the air-controlled reversing valve 6, and the A2 port of the air-controlled reversing valve 6 is connected to the P3 port of the quick exhaust valve 5; the air source enters from the P2 port of the air-controlled reversing valve 6, and enters the drum clutch 3 through the A3 port of the quick exhaust valve 5 and the rotating air guide tap 4; the two-position three-way solenoid valve 8 is respectively connected to the shuttle valve 7 and the combined pressure regulating valve 1.

[0035] In the combined pressure regulating valve 1, port P is the air inlet, ports A, B and C are the air outlets, and there is no air pressure output when the operating handle is in the middle position; when the operating handle is pushed forward to 10 degrees, there is air pressure at port A, and there is no air pressure at ports B and C. When the operating handle is pushed forward to 10 degrees, the air pressure at port C gradually increases from 0 to the air source pressure when the operating handle is pushed forward to 10 degrees. When the operating handle is pushed backward, there is air pressure at port B, and there is no air pressure at ports A and C. When the operating handle is pushed forward to 10 degrees, the air pressure at port C gradually increases from 0 to the air source pressure.

[0036] In the quick exhaust valve 5, the P3 port is the air pressure input port, the A3 port is the air pressure output port, and the R3 port is the exhaust port; when the air pressure is input to the P3 port, the R3 port is closed and the air pressure is output from the A3 port; when there is no air pressure input to the P3 port, the air pressure at the A3 port is discharged from the R3 port.

[0037] In the air-controlled reversing valve 6, the P2 port is the air pressure input port, the A2 port is the air pressure output port, the R2 port is the exhaust port, and the X2 port is the signal port. When there is an air pressure signal at the signal port X2, the air-controlled reversing valve 6 changes direction, the R2 port is closed, and the air pressure at the P2 port is output through the A2 port; when there is no air pressure signal at the X2 port, the air-controlled reversing valve returns to the initial position, the P2 port is closed, the A2 port and the R2 port are connected, and the air pressure at the A2 port is discharged from the R2 port.

[0038] In the shuttle valve 7, port I is the electric throttle clutch air pressure input port, port II is the engine throttle clutch air pressure input port, and port III is the clutch air pressure output port.

[0039] The oil-electric power is required not to work at the same time, that is, the electric throttle and the engine throttle cannot work at the same time. The combined pressure regulating valve 1 and the two-position three-way solenoid valve 8 have only one air pressure signal output through the shuttle valve.

[0040] In the two-position three-way solenoid valve 8, port P1 is the air pressure input port, port A1 is the air pressure output port, and port R1 is the exhaust port; when there is air pressure at port P1, the two-position three-way solenoid valve 8 is energized, and port A1 outputs air pressure; when the two-position three-way solenoid valve 8 loses power and returns to the initial position, A1 and R1 are connected, and air pressure is discharged from port R1.

[0041] The throttle control method of the oil-electric hybrid workover rig of the present invention includes two working conditions when the chassis engine drives the workover rig and when the electric drive workover rig operates. The control method is implemented as follows:

[0042] (I) Chassis engine driven workover rig operation

[0043] When the clutch and accelerator are operated, there is air pressure at P and P1.

[0044] Step D1, operate the handle of the combined pressure regulating valve 1, and by controlling the opening of the handle of the combined pressure regulating valve 1, the drum clutch 3 is engaged to complete the upward lifting movement of the traveling block hook;

[0045] When the chassis engine is working, operate the handle of the combined pressure regulating valve 1, push it from the middle position to a position of more than 10 degrees, the A port of the combined pressure regulating valve 1 outputs air pressure, and through the III port of the shuttle valve 7, outputs a pressure signal to the air-controlled reversing valve 6, the air-controlled reversing valve 6 is switched to the right position, and the air source of the P2 port enters the drum clutch 3 through the A3 port of the quick exhaust valve 5 and the rotating air guide faucet 4, and the drum clutch 3 is engaged. The chassis engine outputs power through the transmission box to drive the drum to rotate, and then drives the traveling block hook to lift upward through the wire rope.

[0046] Step D2, controlling the lifting speed of the traveling block hook by controlling the rotation angle of the handle of the combined pressure regulating valve 1;

[0047] The relationship between the rotation angle of the handle and the lifting speed of the traveling block hook is as follows:

[0048] When the handle is rotated by 10°, the lifting speed of the traveling block hook is 0; when the handle is rotated by more than 10°, as the handle rotation angle increases, the output pressure of the combined pressure regulating valve 1 gradually increases, the pulling force of the diaphragm cylinder 2 gradually increases, the chassis throttle gradually increases from idle speed, and the lifting speed of the traveling block hook gradually increases; when the handle is rotated by a maximum of 45°, the lifting speed of the traveling block hook is about 3000.

[0049] Continue to operate the handle of the combined pressure regulating valve 1, and the C port starts to output air pressure, and the air pressure enters the diaphragm cylinder 2. The cylinder rod of the diaphragm cylinder 2 extends, and the cylinder rod is connected to the chassis engine throttle controller 11 through the connecting rod mechanism 10. At this time, release the drum brake handle, and the traveling block hook begins to rise. Continue to push the combined pressure regulating valve 1 handle forward, and the engine throttle increases as the handle rotation angle increases, thereby accelerating the lifting speed of the traveling block hook. The maximum speed of the engine throttle is adjusted through the connecting rod mechanism 10 connected to the diaphragm cylinder 2.

[0050] Step D3, operate the handle of the combined pressure regulating valve 1 back to the middle position, and the traveling block hook stops moving;

[0051] When the traveling block hook approaches the stop position, pull back the handle of the combined pressure regulating valve 1, the output air pressure of the C port of the diaphragm cylinder 2 decreases, the cylinder rod retracts under the action of the reset spring, and the throttle controller output is reduced through the connecting rod mechanism 10, the chassis engine throttle is lowered, and the lifting speed of the traveling block hook slows down. When the handle of the combined pressure regulating valve 1 is pulled back to within 10 degrees, there is no air pressure at the A port, no air pressure output at the III port of the shuttle valve 7, and the air-controlled reversing valve 6 returns to the left position. At this time, the gas in the drum clutch 3 is discharged from the R3 port of the quick exhaust valve 5 through the air guide faucet 4, and part of the gas is discharged from the R2 port of the air-controlled reversing valve 6. The drum clutch 3 is disengaged, the drum brake handle is pressed down, the traveling block hook stops moving, and the handle of the combined pressure regulating valve 1 returns to the middle position.

[0052] Step D4, operate the handle of the combined pressure regulating valve 1 to complete the downward lowering movement of the traveling block hook;

[0053] The hook is lowered by gravity and falls freely. At this time, the drum clutch is disengaged. Slowly lift the drum brake handle, and the traveling hook falls slowly by its own weight. When it reaches the appropriate position, press the drum brake handle and the traveling hook stops moving.

[0054] (II) Electric drive workover rig operation

[0055] Push the throttle operating handle of the main drive motor, and the operating angle of the operating handle is 0~75°: the drum clutch 3 engagement function is realized in the range of 0°~15°; the motor acceleration function is realized in the range of 15°~75°, and the maximum speed is set to 3000r / min.

[0056] Step F1, operate the motor throttle handle, the two-position three-way solenoid valve 8 is energized, and the drum clutch 3 is engaged by controlling the opening of the motor throttle handle to complete the upward lifting movement of the traveling block hook;

[0057] Slowly push the motor throttle handle, the analog signal output in the 10°~15° interval is converted by the controller, and a 24V voltage signal is output, so that the two-position three-way solenoid valve 8 is energized and switched to the left position. The A1 port outputs air pressure through the III port of the shuttle valve 7, and outputs a pressure signal to the air-controlled reversing valve 6. The reversing valve switches to the right position, and the P2 port air source enters the drum clutch 3 through the A3 port of the quick exhaust valve 5 and the rotating air guide faucet 4, completing the engagement function of the drum clutch 3. Continue to push the motor throttle handle forward, and the analog signal output after exceeding 15° is converted by the controller and output to the main drive motor, releasing the drum brake handle. The main drive motor outputs power and drives the drum to rotate after switching through the transmission box, and then drives the traveling block hook to lift upward through the wire rope.

[0058] Step F2, controlling the lifting speed of the traveling block hook by controlling the rotation angle of the motor throttle handle;

[0059] The relationship between the rotation angle of the motor throttle handle and the lifting speed of the traveling block hook is as follows:

[0060] When the motor throttle handle rotates to 15°, the hook lifting speed is 0; when the handle rotates to 30°, the hook lifting speed is 750r / min; when the handle rotates to 45°, the hook lifting speed is 1500r / min; when the handle rotates to 60°, the hook lifting speed is 2250r / min; when the handle rotates to 75°, the hook lifting speed is 3000r / min.

[0061] As the pushing angle increases, the motor speed increases, and the lifting speed of the traveling block hook increases. When the traveling block hook approaches the stop position, pull back the motor throttle handle, the motor speed slows down, and the lifting speed of the traveling block hook slows down accordingly.

[0062] Step F3, operate the throttle handle of the combined motor, the motor output speed is zero, and the traveling block hook stops moving;

[0063] When the motor throttle handle is pulled back to 15°, the motor output speed is zero. When the motor throttle handle returns to within 10°, the controller no longer outputs a 24V signal, the two-position three-way solenoid valve 8 is powered off and switched to the right position, and the air pressure at port A1 is discharged from port R1; the air pressure signal at port III of the shuttle valve 7 disappears, and the air-controlled reversing valve 6 returns to the left position. At this time, the gas in the drum clutch 3 is discharged from the R3 port of the quick exhaust valve 5 through the air guide faucet 4. The drum clutch 3 is disengaged, the drum brake handle is pressed, and the traveling hook stops.

[0064] Step F4, completing the downward movement of the traveling block hook;

[0065] There are two main ways to complete the lowering movement: the first method is to disengage the drum clutch, slowly lift the drum brake handle, and the traveling carriage hook slowly falls by its own weight. After reaching the appropriate position, press the drum brake handle and the traveling carriage hook stops moving.

[0066] The second method is to use a two-way motor throttle, with symmetrical settings for reverse and forward directions. When the motor throttle handle is pulled in the reverse direction to the range of -10° to -15°, the drum is engaged. After that, release the drum brake handle and continue to push the handle. The motor is controlled to rotate in the reverse direction in the range of -15° to -75° and gradually accelerate, thereby realizing the lowering of the traveling carriage hook. When the traveling carriage hook approaches the stop position, pull back the motor throttle handle, and the lowering speed of the hook gradually slows down. When the motor throttle handle returns to within 10°, the drum clutch is disengaged, the drum brake handle is pressed down, and the traveling carriage hook stops.

Claims

1. A throttle control system for an oil-electric hybrid workover rig, characterized in that: The electric throttle handle is pushed to realize the drum engagement through air circuit control, and then the throttle acceleration function is realized, comprising a combined pressure regulating valve (1), a diaphragm cylinder (2), a drum clutch (3), a rotary air guide tap (4), a quick exhaust valve (5), an air-controlled reversing valve (6), a shuttle valve (7), a two-position three-way solenoid valve (8), a connecting rod mechanism (10) and a throttle controller (11), wherein the cylinder rod of the diaphragm cylinder (2) is connected to the connecting rod mechanism (10), and the connecting rod mechanism (10) is connected to the throttle controller (11); the combined pressure regulating valve (1) is connected to the diaphragm cylinder (2); the drum clutch (3), the rotary air guide tap (4), the quick exhaust valve (5), the air-controlled reversing valve (6) and the shuttle valve (7) are connected in sequence; When the electric throttle is working, the air pressure signal of the combined pressure regulating valve (1) is output through the shuttle valve (7), and the drum clutch (3) is engaged by controlling the opening of the handle of the combined pressure regulating valve (1); When the engine throttle is working, the air pressure signal of the two-position three-way electromagnetic valve (8) is output through the shuttle valve (7), and the drum clutch (3) is engaged by controlling the opening of the motor throttle handle.

2. The throttle control system of the oil-electric hybrid workover rig according to claim 1 is characterized in that: When the handle of the combined pressure regulating valve (1) is in the middle position, there is no air pressure output; When the operating handle is pushed forward to 10°, there is air pressure at port A connected to the shuttle valve (7), but there is no air pressure at ports B and C. When the angle exceeds 10°, the air pressure at port C gradually increases from 0 to the air source pressure. When the handle is operated in reverse, there is air pressure at port B, but no air pressure at ports A and C. When the angle exceeds 10°, the air pressure at port C gradually increases from 0 to the air source pressure.

3. The throttle control system of the oil-electric hybrid workover rig according to claim 1 is characterized in that: When there is air pressure at the air pressure input port of the two-position three-way solenoid valve (8), the two-position three-way solenoid valve (8) is energized and switched, and the A1 port connected to the shuttle valve (7) outputs air pressure; the two-position three-way solenoid valve (8) loses power and returns to the initial position, and the air pressure is discharged from the R1 port.

4. The method for implementing the throttle control system of the oil-electric hybrid workover rig according to any one of claims 1 to 3, characterized in that: It includes two working conditions: chassis engine driven workover rig operation and electric driven workover rig operation; 1) The steps to implement the chassis engine driven workover rig operation are as follows: SD1, operate the handle of the combined pressure regulating valve (1), and push the handle of the combined pressure regulating valve (1) from the middle position to a position exceeding 10°, so as to achieve the engagement of the drum clutch (3), and complete the upward lifting movement of the traveling block hook; SD2, by controlling the rotation angle of the handle of the combined pressure regulating valve (1), controls the lifting speed of the traveling block hook: When the handle is rotated at an angle of 10°, the lifting speed of the traveling block hook is 0; when the handle is rotated at an angle exceeding 10°, as the handle is rotated at an angle greater than 10°, the output pressure of the combined pressure regulating valve (1) gradually increases, the pulling force of the diaphragm cylinder (2) gradually increases, the chassis throttle gradually increases from idle speed, and the lifting speed of the traveling block hook gradually increases; SD3, operate the combined pressure regulating valve (1) and return the handle to the middle position, and the traveling block hook stops moving; SD4, slowly lift the drum brake handle, and the traveling block hook slowly falls down by its own weight; 2) The steps to implement the electric drive workover rig operation are as follows: SF1, operates the motor throttle handle, the two-position three-way solenoid valve (8) is energized, and the drum clutch 3 is engaged by controlling the opening of the motor throttle handle, completing the upward lifting movement of the traveling block hook; SF2, controls the lifting speed of the traveling block hook by controlling the rotation angle of the motor throttle handle: When the motor throttle handle rotates to 15°, the hook lifting speed is 0; when the handle rotates to 30°, the hook lifting speed is 750r / min; when the handle rotates to 45°, the hook lifting speed is 1500r / min; when the handle rotates to 60°, the hook lifting speed is 2250r / min; when the handle rotates to 75°, the hook lifting speed is 3000r / min; SF3, operate the throttle handle of the combined motor, the motor output speed is zero, and the traveling block hook stops moving; SF4, slowly lift the drum brake handle, and the traveling block hook slowly falls down by its own weight.

5. The method for implementing the throttle control system of the oil-electric hybrid workover rig according to claim 4 is characterized in that: When the electric drive workover rig is in operation, the throttle operating handle of the main drive motor is pushed, and the drum clutch (3) is engaged in the range of 0° to 15°, and the motor acceleration function is realized in the range of 15° to 75°; The motor throttle handle is slowly pushed forward, and the analog signal output in the range of 10° to 15° is converted by the controller to output a 24V voltage signal, so that the two-position three-way solenoid valve (8) is energized, completing the engagement function of the drum clutch (3); the motor throttle handle is continuously pushed forward, and the analog signal output after exceeding 15° is converted by the controller and output to the main drive motor, releasing the drum brake handle, and the main drive motor outputs power to drive the drum to rotate after switching through the transmission box, and then drives the traveling block hook to move upward through the wire rope.

6. The method for implementing the throttle control system of the oil-electric hybrid workover rig according to claim 4 is characterized in that: In step SF4, a bidirectional motor throttle is selected. When the motor throttle handle is pulled in the reverse direction to the range of -10° to -15°, the drum is engaged. Thereafter, the drum brake handle is released and the handle is continued to be pushed. The motor is controlled to rotate in the reverse direction in the range of -15° to -75° and gradually accelerate to realize the lowering action of the traveling block hook.

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