Dismounting device for drill rod screw threads
Through the worm system driven by driving motors and hydraulic push rods, the drill rod screws are loosened by large torque, the problem of time-consuming and labor-intensive removal of drill rod screws in the prior art is solved, and a rapid and labor-saving disassembly effect is achieved.
Patent Information
- Application Number
- CN202421131705.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing drill rod screw disassembly device is time-consuming and labor-intensive, especially when the drill rod connection is rusted and bitten to death, it is difficult to effectively disassemble it.
A disassembly device for drill rod screw is designed, using a driving motor to drive the worm through a reducer. The worm drives the half-ring and the inner movement of the half-ring through the worm gear teeth on the half-ring to loosen the drill rod with large torque, combining hydraulic push rod and clamp The clamping structure of the holding plate is easy to operate manually.
The rapid and labor-saving drill rod screw removal is achieved, reducing the time and effort of manpower operation and improving the disassembly efficiency.
Smart Images
Figure CN222207829U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drill rods, in particular to a disassembly device for drill rod threads. Background Art
[0002] Drill pipe is a steel pipe with a threaded tail, used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of the drill pipe is to transport drilling mud to the drill bit and to raise, lower or rotate the bottom hole device together with the drill bit;
[0003] The ends of two hollow drill pipes are connected by tightening tapered threads. At present, pipe clamps are generally used to loosen the drill pipe threads and disassemble the drill pipes separately, which is time-consuming and laborious. In addition, some drill pipe connection threads are often rusted and stuck, and it is still difficult to disassemble even with a pipe clamp or a sledgehammer. Utility Model Content
[0004] The utility model aims to solve the above-mentioned problems and shortcomings and proposes a drill rod thread disassembly device: a driving motor drives a worm through a reducer, and the worm drives the half ring to move inside the housing through the worm gear teeth on the half ring, so that two stuck drill rods can be loosened under the action of a large torque. The utility model is easy to use, labor-saving, and accelerates the speed of separating the drill rods, thus solving the problem of time-consuming and labor-intensive manual untying of stuck drill rods.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A drill rod thread disassembly device comprises a shell, a clamping structure is arranged inside the shell, a drive shell is welded to an outer wall of one side of the shell, and a drive assembly is installed on the inner wall of the drive shell; the drive assembly comprises a drive motor and a reducer installed on the inner wall of the drive shell; the clamping structure comprises a semi-ring, smooth grooves provided at both ends of the inner outer wall of the semi-ring, an installation groove provided on the outer wall of the semi-ring at the center of the smooth groove, and a hydraulic push rod installed on the inner wall of the installation groove.
[0007] Preferably, limiting rings are welded at the centers of the outer walls on both sides of the semi-ring, and sliding grooves are opened on the inner wall of the shell at the limiting rings, and the limiting rings are slidably connected in the sliding grooves.
[0008] Preferably, a clamping plate is installed on the outer wall of one end of the hydraulic push rod, and anti-slip grooves distributed at equal distances are opened on the outer wall of the side where the clamping plates are close to each other;
[0009] According to the above scheme: after the hydraulic push rod is started, the clamping plate is lifted up, and the clamping plate firmly clamps one end of the drill pipe under the pressure applied by the hydraulic push rod, which is convenient for clamping the thread. When used manually, it is convenient to adjust according to the thread size, which is convenient for use.
[0010] Preferably, the outer wall of the outer side of the semi-ring is welded with worm gear teeth distributed at equal distances, and the outer walls on both sides of the semi-ring slide on the inner wall of the shell.
[0011] Preferably, the output shaft of the driving motor is connected to the input end of the reducer, and the output end of the reducer is connected to a worm.
[0012] Preferably, the worm is meshed with the worm gear teeth on the outer wall of the semi-ring, and the other end of the worm is rotatably connected to the inner wall of one end of the drive housing;
[0013] According to the above scheme: the driving motor drives the worm through the reducer, and the worm drives the half ring to move inside the housing through the worm gear on the half ring, and the two stuck drill rods are loosened under the action of large torque, which is convenient for use, labor-saving, and speeds up the separation of the drill rods;
[0014] Preferably, a handle is welded to an outer wall of one side of the drive housing, and the drive motor and the hydraulic push rod are connected to a switch via a wire, and the switch is connected to a power source via a wire.
[0015] The beneficial effects of the utility model are:
[0016] 1. After the hydraulic push rod is started, the clamping plate is lifted up. Under the pressure applied by the hydraulic push rod, the clamping plate firmly clamps one end of the drill pipe, which is convenient for clamping the thread. When used manually, it is convenient to adjust according to the thread size, which is convenient for use;
[0017] 2. The driving motor drives the worm through the reducer, and the worm drives the half ring to move inside the shell through the worm gear on the half ring. The two stuck drill rods are loosened under the action of large torque, which is easy to use, labor-saving and speeds up the separation of the drill rods. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the unfolded structure of the housing of a drill rod thread removal device proposed by the utility model;
[0019] Figure 2 This is a schematic diagram of a half-ring structure of a drill rod thread removal device proposed by the utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of a housing of a drill rod thread removal device proposed by the utility model;
[0021] Figure 4 The utility model is a schematic diagram of the overall structure of a drill rod thread disassembly device.
[0022] In the figure: 1 housing, 2 driving housing, 3 clamping structure, 4 driving assembly, 5 handle, 6 driving motor, 7 reducer, 8 worm, 9 half ring, 10 mounting groove, 11 hydraulic push rod, 12 clamping plate, 13 worm gear, 14 limit ring, 15 sliding groove. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0024] Embodiment 1:
[0025] Reference Figure 1-4 A drill rod thread removal device comprises a housing 1, a clamping structure 3 is provided inside the housing 1, a driving housing 2 is welded to an outer wall of one side of the housing 1, and a driving assembly 4 is installed on the inner wall of the driving housing 2;
[0026] The driving assembly 4 includes a driving motor 6 and a reducer 7 mounted on the inner wall of the driving housing 2;
[0027] A limiting ring 14 is welded at the center of the outer wall of both sides of the semi-ring 9, and a sliding groove 15 is opened on the inner wall of the shell 1 at the limiting ring 14, and the limiting ring 14 is slidably connected in the sliding groove 15. When the semi-ring 9 rotates in the shell 1, the limiting ring 14 and the shell 1 guide the rotating semi-ring 9, so that the semi-ring 9 slides along the specified route and the thread is rotated;
[0028] The outer wall of the half ring 9 is welded with worm gear teeth 13 distributed at equal distances, and the outer walls on both sides of the half ring 9 slide on the inner wall of the housing 1;
[0029] The output shaft of the driving motor 6 is connected to the input end of the reducer 7, and the output end of the reducer 7 is connected to the worm 8. After the driving motor 6 is started, the half ring 9 is driven to rotate inside the housing 1 through the reducer 7, the worm 8 and the worm gear 13, so that a large torque force is applied to the thread, so that the stuck thread can be loosened, which is convenient for use and labor saving.
[0030] The worm 8 is meshed with the worm gear teeth 13 on the outer wall of the half ring 9, and the other end of the worm 8 is rotatably connected to the inner wall of one end of the driving housing 2;
[0031] A handle 5 is welded to an outer wall of one side of the driving housing 2, and the driving motor 6 and the hydraulic push rod 11 are connected to a switch through a wire, and the switch is connected to a power source through a wire.
[0032] Embodiment 2:
[0033] Reference Figure 1-3The clamping structure 3 includes a semi-ring 9, smooth grooves provided at both ends of the inner outer wall of the semi-ring 9, a mounting groove 10 provided on the outer wall of the semi-ring 9 at the center of the smooth groove, and a hydraulic push rod 11 installed on the inner wall of the mounting groove 10. The hydraulic push rods 11 on the inner sides of both ends of the semi-ring 9 drive the clamping plate 12 to clamp the outer wall of the drill pipe thread, which is convenient for clamping, easy to use, and easy to adjust according to the thread size;
[0034] A clamping plate 12 is installed on the outer wall of one end of the hydraulic push rod 11, and the outer wall on the side where the clamping plates 12 are close to each other is provided with anti-slip grooves distributed at equal distances. After use is finished or the drill rod is released, the hydraulic push rod 11 drives the clamping plate 12 to be retracted, and the drive motor 6 is reversed to return the half ring 9 to its original position for easy use.
[0035] Working principle: when in use, move the device to the connection of the drill pipe, move the inner side of the shell 1 to the drill pipe thread, start the hydraulic push rod 11 in the half ring 9, and lift the clamping plate 12 after the hydraulic push rod 11 is started. The clamping plate 12 firmly clamps one end of the drill pipe under the pressure applied by the hydraulic push rod 11. At this time, fix the device through the handle 5, start the drive motor 6 inside the drive shell 2, and the drive motor 6 drives the worm 8 through the reducer 7. The worm 8 then drives the half ring 9 to move inside the shell 1 through the worm gear 13 on the half ring 9. Under the secondary deceleration, the half ring 9 drives the stuck drill pipe thread to rotate, and the two stuck drill pipes are loosened under the action of large torque. After loosening, the restrictions on the handle 5 and the shell 1 are cancelled, and the handle 5 is held and rotated to separate the drill pipes, thereby completing the separation of the stuck drill pipes.
[0036] The exemplary implementation of the utility model is described in detail with reference to the examples, however, it is understood by those skilled in the art that, without departing from the concept of the utility model, various modifications and alterations may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the utility model may be made without exceeding the scope of protection of the utility model, which is determined by the attached claims. The foregoing description of the specific exemplary implementation of the utility model is not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary implementations of the utility model and various different choices and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.
Claims
1. A drill rod thread removal device, comprising a housing (1), characterized in that: A clamping structure (3) is provided inside the housing (1), a drive housing (2) is welded to an outer wall of one side of the housing (1), and a drive assembly (4) is installed on the inner wall of the drive housing (2); The driving assembly (4) comprises a driving motor (6) and a reducer (7) mounted on the inner wall of the driving housing (2); The clamping structure (3) comprises a semi-ring (9), smooth grooves provided at both ends of the inner outer wall of the semi-ring (9), a mounting groove (10) provided on the outer wall of the semi-ring (9) at the center of the smooth groove, and a hydraulic push rod (11) installed on the inner wall of the mounting groove (10).
2. A drill rod thread removal device according to claim 1, characterized in that: Limiting rings (14) are welded at the centers of the outer walls on both sides of the half ring (9), and a sliding groove (15) is provided on the inner wall of the outer shell (1) at the limiting ring (14), and the limiting ring (14) is slidably connected in the sliding groove (15).
3. A drill rod thread removal device according to claim 1, characterized in that: A clamping plate (12) is installed on the outer wall of one end of the hydraulic push rod (11), and anti-slip grooves distributed at equal distances are opened on the outer wall of the clamping plates (12) on the side close to each other.
4. A drill rod thread removal device according to claim 1, characterized in that: The outer wall of the half ring (9) is welded with worm gear teeth (13) distributed at equal distances, and the outer walls on both sides of the half ring (9) slide on the inner wall of the housing (1).
5. The drill rod thread removal device according to claim 1, characterized in that: The output shaft of the driving motor (6) is connected to the input end of the reducer (7), and the output end of the reducer (7) is connected to a worm (8).
6. A drill rod thread removal device according to claim 5, characterized in that: The worm (8) is meshed with the worm gear teeth (13) on the outer wall of the half ring (9), and the other end of the worm (8) is rotatably connected to the inner wall of one end of the drive housing (2).
7. A drill rod thread removal device according to claim 1, characterized in that: A handle (5) is welded to an outer wall of one side of the drive housing (2), and the drive motor (6) and the hydraulic push rod (11) are connected to a switch via a wire, and the switch is connected to a power source via a wire.