Cleaning device for drilling tool screw threads
By designing the cleaning devices of the cleaning thread assembly and the limit assembly, the problem of low mechanization level of the drill thread cleaning device is solved, the automatic cleaning of the drill thread is realized, and the operation efficiency and safety are improved.
Patent Information
- Application Number
- CN202422541983.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In the prior art, the degree of mechanization of the drill thread cleaning device is low, which affects the working efficiency, and the thread sizes of drill tools of different specifications need to be manually adjusted, resulting in low working efficiency.
A cleaning device including a cleaning button assembly and a limit assembly is designed. The driving mechanism drives the driving disk to rotate, the limit assembly restricts the chassis, and the metal brush slides to adapt to the size of the drill thread to achieve automatic cleaning.
It realizes unmanned cleaning of drill thread, improves operation efficiency, adapts to the automatic adaptation of different drill thread sizes, and reduces labor intensity and time cost.
Smart Images
Figure CN223367592U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil and gas drilling, in particular to a cleaning device for drilling tool threads. Background Art
[0002] Pipes are important tools in oil and gas drilling. During the oil and gas drilling process, multiple pipes are usually connected end to end in the well for operation. The pipes are connected by threads at their ends. During the use and storage of pipes, the threads at the ends of the pipes often rust and scale. In order to protect the quality and performance of the pipes, the threads at the ends of the pipes are generally cleaned before operation and then applied with pipe thread compound to prevent affecting the service life and performance of the pipes.
[0003] A common cleaning method is manual cleaning: after the pipe is at the wellhead or near the inlet, the internal threads of the pipe are manually cleaned before the pipe is connected. Due to the limited working space at the wellhead, manual cleaning is labor-intensive, time-consuming, and poses a safety hazard of personal injury and seriously affects operational efficiency. With the increasing mechanization of oil and gas drilling operations, mechanical devices for cleaning drill tool joint threads and applying thread oil have been introduced. These devices can replace manual cleaning and oiling operations. However, the thread sizes of different drill tools vary, and existing cleaning devices require manual adjustment of the brush opening size to accommodate the thread sizes of different drill tools, affecting operational efficiency. Utility Model Content
[0004] (1) Technical issues to be solved
[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a cleaning device for drill thread, which solves the technical problem of the prior art that the degree of mechanization is low and the working efficiency is affected.
[0006] (2) Technical solution
[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:
[0008] The utility model provides a cleaning device for drill thread, comprising a cleaning assembly and a limiting assembly; the cleaning assembly comprises a driving mechanism, a driving disc, a chassis and a plurality of metal brushes; the driving disc is mounted on the driving mechanism, the chassis is located above the driving disc, and the limiting assembly abuts against the chassis; a plurality of metal brushes can be slidably mounted on the chassis to form a cleaning channel that can be shrunk or expanded, a plurality of curved grooves are evenly opened on the driving disc, and a plurality of metal brushes are connected to the plurality of curved grooves in a one-to-one correspondence.
[0009] Optionally, the chassis includes a limiting ring and a brush plate; the brush plate is mounted on the limiting ring, a plurality of metal brushes are slidably mounted on the brush plate, and the limiting assembly abuts against the limiting ring.
[0010] Optionally, the brush disc is provided with a plurality of guide rails extending radially thereof, and a plurality of metal brushes are slidably mounted on the plurality of guide rails in a one-to-one correspondence via sliders, and the sliders are connected to the curved grooves via guide posts at their bottoms.
[0011] Optionally, the metal brush is a wire brush.
[0012] Optionally, the limiting assembly includes a mounting seat, a limiting component and a compression spring; the limiting component is slidably mounted on the mounting seat, the compression spring is located between the mounting seat and the limiting component, and the limiting component abuts against the chassis.
[0013] Optionally, the mounting seat includes a mounting plate and a pressure plate; the pressure plate is connected to the mounting plate, and two sliding rods are provided between the pressure plate and the mounting plate, the limiting assembly can be slidably mounted on the two sliding rods, and the limiting assembly can be slidably passed through the sliding holes of the mounting plate and the pressure plate; the compression spring is passed through the sliding rod and is located between the limiting assembly and the pressure plate.
[0014] Optionally, the limiting assembly includes a sliding kit and a limiting block; the sliding kit is sleeved on the limiting block; the sliding kit is slidably connected to two sliding rods through ear plates on both sides thereof, and the sliding kit can be slidably passed through the sliding hole, and the limiting block abuts the chassis.
[0015] Optionally, the driving mechanism includes a driver, a bearing housing and a rotating shaft; the driver is installed in the bearing housing, the rotating shaft is rotatably arranged in the bearing housing, and the driver is connected to the driving disk through the rotating shaft.
[0016] Optionally, a square shaft sleeve is provided at the free end of the rotating shaft, and the rotating shaft is connected to the square hole of the driving disk through the square shaft sleeve.
[0017] (3) Beneficial effects
[0018] The beneficial effects of the utility model are:
[0019] The present invention provides a cleaning device for drill thread. During cleaning, a drive mechanism drives a drive disc to rotate in a forward direction, a limit assembly generates a torque on a chassis opposite to the forward direction, and the chassis remains stationary under the limiting action of the limit assembly. The drive disc, through the limiting action of a curved groove, drives multiple metal brushes to slide toward the center of the chassis, reducing the cleaning channel to a size that matches the drill thread. After the metal brushes contact the drill thread, the drill thread generates a reaction force on the metal brushes. The chassis overcomes the torque generated by the limit assembly under the action of the reaction force, and the drive disc drives the chassis to rotate, thereby forming a cleaning channel through the multiple metal brushes to clean the drill thread. This mechanical linkage adapts to the thread sizes of different drill tools. Compared with existing technologies, the device has a high degree of mechanization, and can achieve unmanned operation for drilling thread cleaning, resulting in higher operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a cleaning device for drill thread in a specific embodiment of the present utility model;
[0021] Figure 2 It is a structural diagram of the cleaning button assembly in a specific embodiment of the present utility model;
[0022] Figure 3 This is a structural diagram of the cleaning button assembly from another angle in a specific embodiment of the present invention;
[0023] Figure 4 It is a structural schematic diagram of a slider in a specific embodiment of the present utility model;
[0024] Figure 5 It is a top view schematic diagram of the limit assembly in a specific embodiment of the utility model;
[0025] Figure 6 It is a structural exploded diagram of the limit assembly in a specific embodiment of the present utility model;
[0026] Figure 7 It is a structural schematic diagram of the driving mechanism in a specific embodiment of the present invention.
[0027] [Description of Reference Numerals]
[0028] 1: Clean buckle assembly; 11: Drive plate; 111: Square hole; 12: Chassis; 121: Limiting ring; 122: Brush plate; 13: Metal brush; 14: Curved groove; 15: Slider; 16: Guide column; 17: Driver; 18: Bearing compartment; 19: Rotating shaft;
[0029] 2: Limit assembly; 21: Mounting seat; 211: Mounting plate; 212: Pressure plate; 213: Sliding rod; 214: Sliding hole; 22: Limit component; 221: Sliding kit; 222: Limit block; 23: Compression spring. DETAILED DESCRIPTION
[0030] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0031] like Figure 1-Figure 3 As shown, this embodiment provides a cleaning device for drill thread, including a cleaning thread assembly 1 and a limiting assembly 2; the cleaning thread assembly 1 includes a driving mechanism, a driving disk 11, a chassis 12 and a plurality of metal brushes 13; the driving disk 11 is installed on the driving mechanism, the chassis 12 is located above the driving disk 11, and the limiting assembly 2 abuts against the chassis 12; the plurality of metal brushes 13 are slidably installed on the chassis 12 to form a cleaning channel that can be shrunk or expanded, and a plurality of curved grooves 14 are evenly opened on the driving disk 11, and the plurality of metal brushes 13 are connected to the plurality of curved grooves 14 one by one.
[0032] Specifically, when cleaning the thread, the drive mechanism drives the drive disc 11 to rotate in the forward direction, and the limit assembly 2 generates a torque opposite to the forward direction on the chassis 12. The chassis 12 remains stationary under the limiting action of the limit assembly 2. The drive disc 11 drives multiple metal brushes 13 to slide toward the center of the chassis 12 under the limiting action of the curved groove 14, reducing the cleaning channel to a size that is suitable for the drill thread. After the metal brushes 13 abut the drill thread, the drill thread generates a reaction force on the metal brushes 13. Under the action of the reaction force, the chassis 12 overcomes the torque generated by the limit assembly 2. The drive disc 11 drives the chassis 12 to rotate, and then the multiple metal brushes 13 form a cleaning channel to clean the drill thread. In this way, the thread size of different drill tools can be adapted through mechanical linkage. Compared with the existing technology, the degree of mechanization is high, and the drill thread cleaning can be realized unmanned, with higher operating efficiency.
[0033] Further, if Figure 2-Figure 4 As shown, the chassis 12 includes a retaining ring 121 and a brush plate 122. The brush plate 122 is mounted on the retaining ring 121, and multiple metal brushes 13 are slidably mounted on the brush plate 122. The retaining assembly 2 abuts the retaining ring 121. Specifically, the brush plate 122 is provided with multiple radially extending guide rails. The multiple metal brushes 13 are slidably mounted on the multiple guide rails via sliders 15. The sliders 15 are connected to the curved grooves 14 via guide posts 16 at their bottoms. In this embodiment, the metal brushes 13 are three steel wire brushes. The curved grooves 14 can optionally be shaped like an Archimedean spiral.
[0034] Further, if Figure 5 and Figure 6 As shown, the limiting assembly 2 includes a mounting base 21, a limiting component 22, and a compression spring 23. The limiting component 22 is slidably mounted on the mounting base 21, and the compression spring 23 is located between the mounting base 21 and the limiting component 22. The limiting component 22 abuts the chassis 12. Specifically, the mounting base 21 includes a mounting plate 211 and a pressure plate 212. The pressure plate 212 is connected to the mounting plate 211, and two sliding rods 213 are provided between the pressure plate 212 and the mounting plate 211. The limiting component 22 is slidably mounted on the two sliding rods 213, and the limiting component 22 is slidably inserted into the sliding holes 214 of the mounting plate 211 and the pressure plate 212. The compression spring 23 is inserted into the sliding rod 213 and is located between the limiting component 22 and the pressure plate 212. Furthermore, the limiting assembly 22 includes a sliding sleeve 221 and a limiting block 222. The sliding sleeve 221 is sleeved on the limiting block 222. The sliding sleeve 221 is slidably connected to the two slide bars 213 via the lugs on both sides thereof. The sliding sleeve 221 is slidably inserted into the slide hole 214, and the limiting block 222 abuts the chassis 12. Specifically, under the action of the compression spring 23, the limiting block 222 abuts the chassis 12 to generate a torque opposite to its rotational direction.
[0035] Further, if Figure 7 As shown, the drive mechanism includes a driver 17, a bearing housing 18, and a rotating shaft 19. The driver 17 is mounted in the bearing housing 18, and the rotating shaft 19 is rotatably disposed within the bearing housing 18. The driver 17 is connected to the drive disc 11 via the rotating shaft 19. In this embodiment, a square shaft assembly is provided at the free end of the rotating shaft 19, and the rotating shaft 19 is connected to the square hole 111 of the drive disc 11 via the square shaft assembly.
[0036] The use of the cleaning device for drill tool threads provided in this specific embodiment is as follows: after the drill tool thread is in place, the driving disk 11 is driven to rotate by the driver 17, and the chassis 12 remains stationary under the action of the reverse torque generated by the limit block 222. The slider 15 at the bottom of the metal brush 13 slides along the guide rail toward the drill tool thread under the limiting action of the curved groove 14 until the metal wire abuts the drill tool thread. Under the action of the drill tool thread on the metal brush 13, the chassis 12 overcomes the reverse torque generated by the limit block 222 and rotates with the driving disk 11, thereby cleaning the drill tool thread through the cleaning channel.
[0037] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.
[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0039] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0040] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A cleaning device for drill thread, characterized in that: It includes a cleaning buckle assembly (1) and a limiting assembly (2); The cleaning button assembly (1) comprises a driving mechanism, a driving disc (11), a chassis (12) and a plurality of metal brushes (13); The driving disc (11) is mounted on the driving mechanism, the chassis (12) is located above the driving disc (11), and the limiting assembly (2) abuts against the chassis (12); a plurality of metal brushes (13) are slidably mounted on the chassis (12) to form a cleaning channel that can be shrunk or expanded, a plurality of curved grooves (14) are evenly formed on the driving disc (11), and the plurality of metal brushes (13) are connected to the plurality of curved grooves (14) in a one-to-one correspondence.
2. The cleaning device for drill thread according to claim 1, characterized in that: The chassis (12) includes a limiting ring (121) and a brush plate (122); The brush disc (122) is mounted on the limiting ring (121), a plurality of metal brushes (13) are slidably mounted on the brush disc (122), and the limiting assembly (2) abuts against the limiting ring (121).
3. The cleaning device for drill thread according to claim 2, characterized in that: The brush disc (122) is provided with a plurality of guide rails extending in its radial direction, and a plurality of metal brushes (13) are slidably mounted on the plurality of guide rails in a one-to-one correspondence via sliders (15), and the sliders (15) are connected to the curved groove (14) via guide posts (16) at their bottoms.
4. The cleaning device for drill thread according to claim 1, characterized in that: The metal brush (13) is a wire brush.
5. The cleaning device for drill thread according to claim 1, characterized in that: The limiting assembly (2) includes a mounting seat (21), a limiting component (22) and a compression spring (23); The limiting assembly (22) is slidably mounted on the mounting seat (21), the compression spring (23) is located between the mounting seat (21) and the limiting assembly (22), and the limiting assembly (22) abuts against the chassis (12).
6. The cleaning device for drill thread according to claim 5, characterized in that: The mounting seat (21) comprises a mounting plate (211) and a pressing plate (212); The pressure plate (212) is connected to the mounting plate (211), and two sliding rods (213) are provided between the pressure plate (212) and the mounting plate (211). The limiting assembly (22) can be slidably installed on the two sliding rods (213), and the limiting assembly (22) can be slidably passed through the sliding holes (214) of the mounting plate (211) and the pressure plate (212); the compression spring (23) is passed through the sliding rod (213) and is located between the limiting assembly (22) and the pressure plate (212).
7. The cleaning device for drill thread according to claim 6, characterized in that: The limiting assembly (22) includes a sliding assembly (221) and a limiting block (222); The sliding kit (221) is sleeved on the limiting block (222); the sliding kit (221) is slidably connected to the two sliding rods (213) through the ear plates on both sides thereof, and the sliding kit (221) is slidably passed through the sliding hole (214), and the limiting block (222) abuts against the chassis (12).
8. The cleaning device for drill thread according to claim 1, characterized in that: The driving mechanism comprises a driver (17), a bearing housing (18) and a rotating shaft (19); The driver (17) is installed in the bearing chamber (18), the rotating shaft (19) is rotatably arranged in the bearing chamber (18), and the driver (17) is connected to the driving disc (11) through the rotating shaft (19).
9. The cleaning device for drill thread according to claim 8, characterized in that: A square shaft sleeve is provided at the free end of the rotating shaft (19), and the rotating shaft (19) is connected to the square hole (111) of the driving disc (11) through the square shaft sleeve.