A collision prevention device for a petroleum rig drawworks

Abstract

This utility model discloses an anti-collision device for an oil drilling rig winch, including a first stepper motor. A first transmission seat is driven by a reducer connected to the first stepper motor. The reducer is connected to a docking shaft, controlling its rotation. A second geared disc is fixedly connected to the docking shaft and rotates on a bushing seat via a shaft. A first geared disc is meshed with the rear end of the second geared disc. A rotating rod is fixedly connected to the front end of the first geared disc, communicating with the bushing seat. A lead screw is fixedly connected to the front end of the rotating rod. The lead screw rotates within a first lead screw seat, and its rotation drives a first slider to slide on the first lead screw seat. The first slider, located inside the first lead screw seat, has a block adapted to the lead screw, controlling its sliding adjustment within the first lead screw seat. A second stepper motor also controls the movement of the second slider on the second lead screw seat via a second transmission seat. This structural design enables the reset and adjustment of the over-circuit valve.

Description

Technical Field

[0001] This utility model relates to the technical field of oil drilling rig winch equipment, specifically an anti-collision device for oil drilling rig winches. Background Technology

[0002] The over-circuit valve is used to control the movement and position of the traveling block in the winch system. During production operations, when the traveling block reaches the set position, it can trigger the emergency braking mechanism of the over-circuit valve to ensure the safe and efficient operation of the traveling block and prevent accidents. It helps to improve the working efficiency of the hoisting and ensures the safety, stability, and efficiency of drilling operations. The disadvantages of this device are: after each emergency braking mechanism is triggered during production operations, the operator needs to enter the winch drum and manually adjust the over-circuit valve to reset it to ensure normal operation; the space of the winch drum is confined and small, and there is a lot of oil, which can easily lead to slips or mechanical injuries. This invention can effectively and reliably eliminate this safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide an anti-collision device for oil drilling rig winches to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an anti-collision device for an oil drilling rig winch, comprising a first stepper motor, a first transmission seat connected to the first stepper motor via a reducer, the reducer being connected to a docking shaft to control the rotation of the docking shaft, a second gear disc fixedly connected to the docking shaft, the second gear disc rotating on a bushing seat via a shaft, a first gear disc meshing with the rear end of the second gear disc, a rotating rod fixedly connected to the front end of the first gear disc, the rotating rod being connected through the bushing seat, and a lead screw fixedly connected to the front end of the rotating rod;

[0005] The lead screw rotates within the first lead screw seat, and the rotation of the lead screw drives the first slider to slide on the first lead screw seat. The first slider is located inside the first lead screw seat and has a block adapted to the lead screw. The sliding adjustment of the first slider within the first lead screw seat is controlled. The second stepper motor also controls the movement of the second slider on the second lead screw seat through the second transmission seat. The internal structure of the second transmission seat is the same as that of the first transmission seat. A loop valve is fixedly installed on the first slider.

[0006] Specifically, the bushing seat is fixed inside the first transmission seat, and the lead screw is centrally connected to the first lead screw seat.

[0007] Specifically, a fixing block is fixedly connected to the bottom of the second lead screw seat, and the fixing block is used to fix the second lead screw seat.

[0008] Specifically, the second lead screw seat is also provided with a limiting rod, which is used to hinder the movement of the second slider.

[0009] Specifically, the second slider is adjusted laterally, while the first slider moves on the first lead screw seat to be adjusted longitudinally.

[0010] Specifically, the upper end of the second slider is fixed to the first lead screw seat, and the change in the position of the first slider and the second slider drives the over-circuit valve to reset and adjust.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By installing the first stepper motor, which controls the rotation of the docking shaft in the first transmission seat via a reducer, the second gear disc rotates accordingly. The second gear disc meshes with the first gear disc, causing the first gear disc to rotate on the bushing seat. The first gear disc drives the rotating rod and lead screw to rotate as well. The lead screw is located in the first lead screw seat and can control the sliding adjustment of the first slider on the first lead screw seat, changing the position of the over-turn valve. At the same time, the second stepper motor controls the movement of the second slider on the second lead screw seat via the second transmission seat, performing bidirectional position adjustment, so that the over-turn valve on the first slider is reset and adjusted. The limit rod is set to hinder the movement of the second slider and prevent excessive movement of the second slider. The fixed base block is set to facilitate the fixation of the second lead screw seat to the external winch frame. Thus, through the overall structural design, the reset and adjustment of the over-turn valve can be performed remotely without specific manual operation, ensuring the normal operation of the winch. Anti-collision refers to preventing collisions with the inside of the winch when adjusting the over-turn valve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the internal workings of the first transmission seat of this utility model.

[0015] In the diagram: 1-First stepper motor; 2-Reducer; 3-First transmission seat; 4-First lead screw seat; 5-First slider; 6-Limit rod; 7-Second slider; 8-Second lead screw seat; 9-Second transmission seat; 10-Second stepper motor; 11-Fixed base block; 12-First gear plate; 13-Second gear plate; 14-Matching shaft; 15-Bushing seat; 16-Rotating rod; 17-Lead screw. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-2 This utility model provides a technical solution: an anti-collision device for an oil drilling rig winch, including a first stepper motor 1, a first transmission seat 3 driven by a reducer 2 on the first stepper motor 1, the reducer 2 being connected to a docking shaft 14 to control the rotation of the docking shaft 14, a second gear disk 13 being fixedly connected to the docking shaft 14, and the second gear disk 13 rotating on a bushing seat 15 via a shaft, the rear end of the second gear disk 13 being meshed with a first gear disk 12, the front end of the first gear disk 12 being fixedly connected with a rotating rod 16, the rotating rod 16 being through the bushing seat 15, and the front end of the rotating rod 16 being fixedly connected with a lead screw 17;

[0018] The lead screw 17 rotates within the first lead screw seat 4, and the rotation of the lead screw 17 drives the first slider 5 to slide on the first lead screw seat 4. The first slider 5 is located inside the first lead screw seat 4 and has a block adapted to the lead screw 17. The first slider 5 is controlled to slide and adjust within the first lead screw seat 4. The second stepper motor 10 also controls the movement of the second slider 7 on the second lead screw seat 8 through the second transmission seat 9. The internal structure of the second transmission seat 9 is the same as that of the first transmission seat 3. A loop valve is fixedly installed on the first slider 5. By installing the first stepper motor 1, the first stepper motor 1 controls the rotation of the docking shaft 14 in the first transmission seat 3 through the reducer 2, so that the second gear disk 13 rotates accordingly. The second gear disk 13 meshes with the first gear disk 12, so that the first gear disk 12 rotates on the bushing seat 15. A toothed disc 12 drives a rotating rod 16 and a lead screw 17 to rotate. The lead screw 17 is located inside the first lead screw seat 4 and can control the sliding adjustment of the first slider 5 on the first lead screw seat 4 to change the position of the over-coil valve. At the same time, the second stepper motor 10 controls the movement of the second slider 7 on the second lead screw seat 8 through the second transmission seat 9 to adjust the position in both directions, so that the over-coil valve on the first slider 5 is reset and adjusted. The limit rod 6 is set to hinder the movement of the second slider 7 and prevent the second slider 7 from moving excessively. The fixed base block 11 is set to facilitate the fixing of the second lead screw seat 8 to the external winch frame. Thus, through the overall structural design, the over-coil valve can be reset and adjusted without manual operation, only requiring remote observation and control, to ensure the normal operation of the winch.

[0019] The bushing seat 15 is fixed inside the first transmission seat 3, and the lead screw 17 is centrally connected to the first lead screw seat 4.

[0020] A fixed base block 11 is fixedly connected to the bottom of the second lead screw seat 8. The fixed base block 11 is used to fix the second lead screw seat 8 and the frame. At the same time, the over-circuit valve is fixed to the first slider 5. Then, the second stepper motor 10 starts to work. The second stepper motor 10 controls the rotation of the internal lead screw through the second transmission seat 9, so that the second slider 7 moves on the second lead screw seat 8. The limit rod 6 is used for the limit protection of the second slider 7. When the second slider 7 moves, it drives the first lead screw seat 4 to follow and adjust. After reaching the appropriate position, the first stepper motor 1 starts to work. The first stepper motor 1 drives the docking shaft 14 in the first transmission seat 3 to rotate through the reducer 2. The docking shaft 14 drives the second gear disk 13 to rotate, and the second gear disk 13 drives the meshing first gear disk 12 to rotate. This causes the first gear disk 12 to drive the rotating rod 16 and the lead screw 17 to rotate. The lead screw 17 is threadedly connected to the first slider 5, so that the first slider 5 slides at the upper limit of the first lead screw seat 4, thereby changing the position of the first slider 5. At the same time, the over-turn valve on the first slider 5 is adjusted to achieve the reset adjustment of the over-turn valve, avoiding manual operation and safety hazards.

[0021] The second lead screw seat 8 is also provided with a limiting rod 6, which is used to hinder the movement of the second slider 7.

[0022] The second slider 7 is adjusted laterally, while the first slider 5 moves on the first lead screw seat 4 to be adjusted longitudinally.

[0023] The upper end of the second slider 7 is fixed to the first lead screw seat 4, and the change in position of the first slider 5 and the second slider 7 drives the over-circuit valve to reset and adjust.

[0024] Working principle: When needed, the user fixes the base block 11 to the frame and the over-circuit valve to the first slider 5. Then, the second stepper motor 10 starts working. The second stepper motor 10 controls the internal lead screw to rotate through the second transmission seat 9, causing the second slider 7 to move on the second lead screw seat 8. The limit rod 6 is used for the limit protection of the second slider 7. When the second slider 7 moves, it drives the first lead screw seat 4 to follow and adjust. After reaching the appropriate position, the first stepper motor 1 starts working. The first stepper motor 1 drives the docking shaft 14 in the first transmission seat 3 to rotate through the reducer 2. The docking shaft 14 drives the second gear plate 13 to rotate. The second gear plate 13 drives the meshing first gear plate 12 to rotate, causing the first gear plate 12 to drive the rotating rod 16 and the lead screw 17 to rotate. The lead screw 17 is threadedly connected to the first slider 5, allowing the first slider 5 to slide at the upper limit of the first lead screw seat 4, thereby changing the position of the first slider 5. At the same time, the over-circuit valve on the first slider 5 is adjusted to achieve the reset adjustment of the over-circuit valve, avoiding manual operation and causing safety hazards, and completing the work.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-collision device for a petroleum rig drawworks, characterized by: Includes a first stepper motor (1), a first transmission seat (3) is driven and connected to the first stepper motor (1) through a reducer (2), the reducer (2) is connected to the docking shaft (14) and controls the rotation of the docking shaft (14), a second gear disk (13) is fixedly connected to the docking shaft (14), and the second gear disk (13) rotates on the bushing seat (15) through the shaft, the rear end of the second gear disk (13) is meshed with the first gear disk (12), the front end of the first gear disk (12) is fixedly connected with a rotating rod (16), the rotating rod (16) is connected to the bushing seat (15), and the front end of the rotating rod (16) is fixedly connected with a lead screw (17). The lead screw (17) rotates inside the first lead screw seat (4), and the lead screw (17) drives the first slider (5) to slide on the first lead screw seat (4) through rotation. The first slider (5) is located inside the first lead screw seat (4) and has a block adapted to the lead screw (17). The first slider (5) is controlled to slide and adjust inside the first lead screw seat (4). The second stepper motor (10) also controls the second slider (7) to move on the second lead screw seat (8) through the second transmission seat (9). The internal structure of the second transmission seat (9) is the same as that of the first transmission seat (3). A loop valve is fixedly installed on the first slider (5).

2. The anti-collision device for an oil drilling rig winch according to claim 1, characterized in that: The bushing seat (15) is fixed inside the first transmission seat (3), and the lead screw (17) is centrally connected to the first lead screw seat (4).

3. The anti-collision device for an oil drilling rig winch according to claim 2, characterized in that: The bottom of the second lead screw seat (8) is fixedly connected to a fixing block (11), which is used to fix the second lead screw seat (8).

4. The anti-collision device for an oil drilling rig winch according to claim 3, characterized in that: The second lead screw seat (8) is also provided with a limiting rod (6), which is used to hinder the movement of the second slider (7).

5. The anti-collision device for an oil drilling rig winch according to claim 4, characterized in that: The second slider (7) is adjusted laterally, and the first slider (5) moves on the first lead screw seat (4) to be adjusted longitudinally.

6. The anti-collision device for an oil drilling rig winch according to claim 5, characterized in that: The upper end of the second slider (7) is fixed to the first lead screw seat (4), and the over-circuit valve is reset and adjusted by changing the position of the first slider (5) and the second slider (7).

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