Fingerboard lock device

Abstract

The utility model discloses a fingerboard lock device which comprises an installation base, a driving assembly and a feedback assembly, the installation base is of a T-shaped hollow structure, a connecting flange is installed at one end of the installation base, an L-shaped stop lever is rotationally connected into the connecting flange in a sleeved mode, one end of the stop lever is connected with a first gear shaft in a sleeved mode through threads, and the other end of the stop lever is connected with a second gear shaft through threads. The stop lever is fixedly connected with the first gear shaft through a hexagon socket set screw with a conical end, and the first gear shaft is in meshing transmission with the second gear shaft. The direct-current motor and the driver are integrated together, the driving requirement of the fingerboard lock can be met, the fingerboard lock can be matched with the installation space on the periphery of the fingerboard lock, interference with other part structures of the automatic pipe racking machine is avoided, and therefore the cost of an electric control execution unit of the fingerboard lock is effectively reduced, meanwhile, installation and debugging are convenient, and the practicability is high. And on the other hand, special substances such as sparks generated during rotation of the gear can be prevented from overflowing to a certain extent, so that an anti-explosion effect is achieved to a certain extent.

Description

Technical Field

[0001] This utility model relates to the technical field of finger beam lock equipment for oil drilling platforms, and in particular to a finger beam lock device. Background Technology

[0002] With the application of mechanized tools in the oil drilling and production industry, my country's oil drilling rig manufacturing technology has developed rapidly. Oilfield drilling and workover operations are inseparable from drilling and workover equipment. With the development of mechanization and automation, automation of second-level platform operations has gradually become widespread. A finger beam refers to the crossbeam on the second-level platform; a channel for placing drill pipes is formed between two adjacent finger beams. During drilling and workover operations, the transfer of drill pipes between the second-level platform finger beams and the wellhead is a frequently performed step. Existing finger beams are equipped with finger beam locking mechanisms at their ends. These mechanisms include a motor and a stop bar. The motor's output shaft is directly connected to the stop bar. The motor drives the stop bar to rotate to a position where it blocks the channel between the two adjacent finger beams, and the stop bar abuts against the drill pipe, thus limiting and fixing the drill pipe standing between the two adjacent finger beams. The motor then drives the stop bar to rotate to a position where it disengages from the drill pipe, allowing the drill pipe standing between the two adjacent finger beams to be released.

[0003] Currently, the finger beam lock device has the following problems: the finger beam lock is not compatible with the surrounding installation space, and it is easy to interfere with the structure of other components of the automatic pipe laying machine. As a result, the cost of the electronic control unit of the finger beam lock is increased, and installation and debugging are inconvenient. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a finger beam lock device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A finger beam lock device includes a mounting base and a feedback component. The mounting base has a T-shaped hollow structure. A connecting flange is installed at one end of the mounting base. An L-shaped stop bar is rotatably sleeved inside the connecting flange. A gear shaft is threadedly sleeved at one end of the stop bar. The stop bar and the gear shaft are fixedly connected by an internal hexagonal tapered set screw. The gear shaft and the gear shaft mesh and drive each other.

[0007] The drive assembly includes a motor mounting plate and a DC motor. The motor mounting plate is fixed to the connecting flange by a transmission bracket. The DC motor is mounted on the motor mounting plate. The output shaft of the DC motor is connected to the gear shaft by a key. The motor drive assembly is mounted on the motor mounting plate.

[0008] The feedback assembly includes a feedback bracket, a feedback support column, a digital potentiometer, a second gear shaft, a cam follower bearing, a second bushing, and a third bushing. The feedback bracket is fixedly connected to the transmission bracket via the feedback support column. One end of the second gear shaft is fixedly connected to the cam follower bearing via the second bushing and an internal hexagonal cone-shaped set screw. The other end of the second gear shaft is fixedly connected to the digital potentiometer via an internal hexagonal cone-shaped set screw. The third bushing is rotatably connected to the connecting flange. The second gear shaft meshes with the first gear shaft for transmission.

[0009] Preferably, the mounting base is fitted with an external thread plug via a threaded connection, and several single-ear connecting plates are fixed on the mounting base.

[0010] Preferably, the mounting base and the connecting flange are connected by screws, the screws are equipped with anti-loosening baffles, and the connecting flange is fixed with a rubber gasket.

[0011] Preferably, the stop rod and the connecting flange are rotatably connected by a deep groove ball bearing, the deep groove ball bearing is equipped with a skeleton oil seal, a bushing is sleeved on the stop rod, a small round nut for limiting the bushing is installed on the stop rod, and a retaining ring for holes is installed inside the connecting flange.

[0012] Preferably, the motor drive assembly includes a drive mounting plate and a driver, wherein the drive mounting plate is fixedly connected to the motor mounting plate, and the driver is fixed on the drive mounting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the connecting flange limits the stop bar, which can only swing back and forth circumferentially within a range of 180°, thereby solving the problem of malfunction of the existing finger beam lock; the stop bar is driven to rotate by the drive assembly, thereby switching between the closed and open states. When the DC motor starts, the output shaft of the DC motor drives gear shaft one to rotate. Gear shaft one can drive gear shaft two to rotate through meshing with gear shaft two. Utilizing the gear ratio between gear shaft one and gear shaft two, when the output shaft of the DC motor rotates, the digital potentiometer can read the rotation data of the output shaft of the DC motor, and together with the driver, enable the external to accurately control the DC motor. The digital potentiometer can detect and display the current status and position of the stop bar's rotation angle in real time, and at the same time, provide alarm prompts for the driller's misoperation.

[0015] 2. In this utility model, the DC motor and driver are integrated together, which can meet the driving requirements of the finger beam lock and can be adapted to the installation space around the finger beam lock without interfering with the structure of other components of the automatic pipe laying machine. Thus, the cost of the electronic control execution unit of the finger beam lock is effectively reduced, and it is easy to install and debug. On the other hand, it can prevent the leakage of special substances such as sparks generated when the gears rotate to a certain extent, thereby playing a certain degree of explosion-proof role. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a finger beam lock device proposed in this utility model;

[0017] Figure 2 for Figure 1 A sectional view;

[0018] Figure 3 for Figure 1 Rear view;

[0019] Figure 4 This is a schematic diagram of the installation structure of the components on the connecting flange of the finger beam lock device proposed in this utility model;

[0020] Figure 5 for Figure 2 A schematic diagram of the local structure at position A in the middle.

[0021] In the diagram: 1. Connecting flange; 2. Stop bar; 3. Bushing 1; 4. Gear shaft 1; 5. Anti-loosening baffle; 6. Deep groove ball bearing; 7. Hole retaining ring; 8. Skeleton oil seal; 9. Small round nut; 10. Transmission bracket; 11. Rubber gasket; 12. Bushing 2; 13. Bushing 3; 14. Gear shaft 2; 15. Cam follower bearing; 16. Feedback bracket; 17. Feedback support; 18. Digital potentiometer; 19. Motor mounting plate; 20. Drive mounting plate; 21. DC motor; 22. Drive plate; 23. Mounting base; 24. External thread plug. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5A finger beam lock device includes a mounting base 23 and a feedback component. The mounting base 23 has a T-shaped hollow structure. A connecting flange 1 is installed at one end of the mounting base 23. An L-shaped stop bar 2 is rotatably sleeved inside the connecting flange 1. A gear shaft 4 is threadedly sleeved at one end of the stop bar 2. The stop bar 2 and the gear shaft 4 are fixedly connected by a hexagonal cone-shaped set screw. The gear shaft 4 meshes with the gear shaft 14 for transmission. The connecting flange 1 limits the stop bar 2, and the stop bar 2 can only reciprocate circumferentially within a range of 180°, thereby solving the problem of malfunction of existing finger beam locks.

[0024] The drive assembly includes a motor mounting plate 19 and a DC motor 21. The motor mounting plate 19 is fixed to the connecting flange 1 via a transmission bracket 10. The DC motor 21 is mounted on the motor mounting plate 19. The output shaft of the DC motor 21 is connected to the gear shaft 4 via a key. A motor drive assembly is mounted on the motor mounting plate 19. The motor drive assembly includes a drive mounting plate 20 and a driver 22. The drive mounting plate 20 is fixedly connected to the motor mounting plate 19, and the driver 22 is fixed on the drive mounting plate 20.

[0025] The feedback assembly includes a feedback bracket 16, a feedback support column 17, a digital potentiometer 18, a second gear shaft 14, a cam follower bearing 15, a second bushing 12, and a third bushing 13. The feedback bracket 16 is fixedly connected to the transmission bracket 10 via the feedback support column 17. One end of the second gear shaft 14 is fixedly connected to the cam follower bearing 15 via the second bushing 12 and an internal hexagonal cone-shaped set screw. The other end of the second gear shaft 14 is fixedly connected to the digital potentiometer 18 via an internal hexagonal cone-shaped set screw. The third bushing 13 is rotatably connected to the connecting flange 1. The second gear shaft 14 meshes with the first gear shaft 4 for transmission.

[0026] The drive assembly drives the stop lever 2 to rotate, thus switching the stop lever 2 between the closed and open states. When the DC motor 21 starts, the output shaft of the DC motor 21 drives the gear shaft 4 to rotate. The gear shaft 4 can drive the gear shaft 14 to rotate through meshing with the gear shaft 14. Utilizing the gear ratio between the gear shaft 4 and the gear shaft 14, when the output shaft of the DC motor 21 rotates, the digital potentiometer 18 can read the rotation data of the output shaft of the DC motor 21. Together with the driver 22, this allows for accurate external control of the DC motor 21. The digital potentiometer 18 can also detect and display the rotation angle of the stop lever 2 in real time, as well as the current status and position. At the same time, it can provide alarm prompts for any misoperations by the driller.

[0027] Integrating the DC motor 21 and driver 22 together can meet the driving requirements of the finger beam lock and is compatible with the installation space around the finger beam lock. It does not interfere with the structure of other components of the automatic pipe laying machine. This effectively reduces the cost of the electronic control unit of the finger beam lock, while facilitating installation and debugging. On the other hand, it can prevent the leakage of special substances such as sparks generated when the gears rotate to a certain extent, thus playing a certain role in explosion protection.

[0028] Reference Figure 2 The mounting base 23 is fitted with an external threaded plug 24 via a threaded sleeve. The appropriate external threaded plug 24 can be selected on site according to the actual situation. After the external threaded plug 24 is removed, an explosion-proof conduit is connected to the mounting base 23. Several single-ear connecting plates are fixed on the mounting base 23. The single-ear connecting plates facilitate the on-site installation of the mounting base 23.

[0029] Reference Figure 4 The mounting base 23 is connected to the connecting flange 1 by screws. The screws are equipped with anti-loosening baffles 5. The anti-loosening baffles 5 bend after the screws are tightened to prevent the screws from vibrating and loosening and falling from a height. A rubber gasket 11 is fixed on the connecting flange 1.

[0030] Reference Figure 5 The stop rod 2 and the connecting flange 1 are rotatably connected by a deep groove ball bearing 6. A skeleton oil seal 8 is installed on the deep groove ball bearing 6. A bushing 3 is sleeved on the stop rod 2. A small round nut 9 for limiting the bushing 3 is installed on the stop rod 2. A retaining ring 7 for holes is installed inside the connecting flange 1.

[0031] Working principle: The connecting flange 1 limits the stop lever 2, which can only reciprocate circumferentially within a 180° range, thus solving the problem of malfunction in existing finger-beam locks; the drive assembly drives the stop lever 2 to rotate, thereby switching the stop lever 2 between the closed and open states. When the DC motor 21 starts, the output shaft of the DC motor 21 drives the gear shaft 4 to rotate. The gear shaft 4, through meshing with the gear shaft 14, drives the gear shaft 14 to rotate. Utilizing the gear ratio between the gear shaft 4 and the gear shaft 14, when the output shaft of the DC motor 21 rotates, the digital potentiometer 18 can read the rotation data of the output shaft of the DC motor 21, and cooperate with the driver 22. This allows for accurate external control of the DC motor 21, and the digital potentiometer 18 can detect and display the current status and position of the rotation angle of the stop lever 2 in real time, while also providing alarm prompts for any misoperations by the driller. Integrating the DC motor 21 and the driver 22 together meets the driving requirements of the finger beam lock and is compatible with the installation space around the finger beam lock, without interfering with the structure of other components of the automatic pipe laying machine. This effectively reduces the cost of the electronic control unit of the finger beam lock, while facilitating installation and debugging. On the other hand, it can also prevent the leakage of sparks and other special substances generated during gear rotation to a certain extent, thus playing a certain role in explosion protection.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A finger-beam lock device, comprising a mounting base (23), a drive assembly, and a feedback assembly, characterized in that, The mounting base (23) is a T-shaped hollow structure. A connecting flange (1) is installed at one end of the mounting base (23). An L-shaped stop bar (2) is rotatably sleeved inside the connecting flange (1). A gear shaft (4) is threaded onto one end of the stop bar (2). The stop bar (2) and the gear shaft (4) are fixedly connected by an internal hexagonal cone end set screw. The gear shaft (4) meshes with the gear shaft (14). The drive assembly includes a motor mounting plate (19) and a DC motor (21). The motor mounting plate (19) is fixed on the connecting flange (1) by a transmission bracket (10). The DC motor (21) is mounted on the motor mounting plate (19). The output shaft of the DC motor (21) is connected to the gear shaft (4) by a key. The motor drive assembly is mounted on the motor mounting plate (19). The feedback assembly includes a feedback bracket (16), a feedback support column (17), a digital potentiometer (18), a gear shaft two (14), a cam follower bearing (15), a bushing two (12), and a bushing three (13). The feedback bracket (16) is fixedly connected to the transmission bracket (10) through the feedback support column (17). One end of the gear shaft two (14) is fixedly connected to the cam follower bearing (15) through the bushing two (12) and the internal hexagonal cone end set screw. The other end of the gear shaft two (14) is fixedly connected to the digital potentiometer (18) through the internal hexagonal cone end set screw. The bushing three (13) is rotatably connected to the connecting flange (1). The gear shaft two (14) meshes with the gear shaft one (4) for transmission.

2. The finger-beam lock device according to claim 1, characterized in that, The mounting base (23) is threaded with an external thread plug (24), and several single-ear connecting plates are fixed on the mounting base (23).

3. The finger-beam lock device according to claim 1, characterized in that, The mounting base (23) is connected to the connecting flange (1) by screws, and anti-loosening baffles (5) are installed on the screws. A rubber gasket (11) is fixed on the connecting flange (1).

4. The finger-beam lock device according to claim 1, characterized in that, The stop rod (2) and the connecting flange (1) are rotatably connected by a deep groove ball bearing (6). A skeleton oil seal (8) is installed on the deep groove ball bearing (6). A bushing (3) is sleeved on the stop rod (2). A small round nut (9) for limiting the bushing (3) is installed on the stop rod (2). A retaining ring (7) for holes is installed inside the connecting flange (1).

5. A finger-beam lock device according to claim 1, characterized in that, The motor drive assembly includes a drive mounting plate (20) and a driver (22). The drive mounting plate (20) is fixedly connected to the motor mounting plate (19), and the driver (22) is fixed on the drive mounting plate (20).

Images