Drill rod buckle cleaning device and buckle cleaning method

Abstract

The invention relates to a drill rod buckle cleaning device and a buckle cleaning method. The drill rod buckle cleaning device comprises a brush head mechanism, an adjusting mechanism and a revolution driving mechanism. The adjusting mechanism is connected with the brush head mechanism and the revolution driving mechanism. The rotating axis of the adjusting mechanism is a revolution axis, and the adjusting mechanism is used for adjusting the axis of the brush head mechanism and the offset of the revolution axis so that the head end of the brush head mechanism can be attached to the threaded face of the male buckle or the female buckle of the drill rod which is coaxially arranged with the revolution axis. The revolution driving mechanism is used for driving the adjusting mechanism and the brush head mechanism with the head end attached to the threaded face of the male buckle or the female buckle of the drill rod to synchronously rotate around the revolution axis, and the brush head mechanism synchronously rotates when rotating around the revolution axis. Based on the arrangement, male buckles and female buckles of drill rods with different diameters can be automatically cleaned, so that the labor intensity is reduced, the buckle cleaning efficiency and quality are improved, the male buckles and the female buckles can be cleaned only by arranging one brush head mechanism, one adjusting mechanism and one revolution driving mechanism, the overall structure is simple, and the size is small.

Description

Technical Field

[0001] The present invention relates to the technical field of drill pipe thread cleaning, and particularly to a drill pipe thread cleaning device and a thread cleaning method. Background Art

[0002] With the improvement of the automation level of oil drilling operations, automated drill pipe operating equipment (such as top drives, iron roughnecks, drill floor manipulators, etc.) is being more and more widely used. During the use and storage of drill pipes, the joint threads often rust, scale, etc. If the rust and scale are not cleaned in time and thread compound is not applied, it will affect the normal use and service life of the drill pipes.

[0003] Currently, the methods for cleaning the internal and external threads of drill tool joints are divided into the following two types:

[0004] Manual brush cleaning: Operators use a hand-held brush to scrape and clean the threads. However, this method has significant drawbacks: First, during the operation, it is necessary to frequently clean the sludge accumulated on the brush head. Otherwise, the sludge will reattach to the thread surface, resulting in incomplete cleaning. Second, the cleaning quality is greatly affected by the operator's experience and skills, and it is difficult to achieve standardization. Third, manual brush cleaning has a high labor intensity, and the working environment is often accompanied by high temperature, oil pollution, and mechanical operation risks, with prominent safety hazards.

[0005] Automated thread cleaning equipment: The existing thread cleaning equipment is divided into two categories. One category is to separately set two thread cleaning mechanisms to clean the internal and external threads respectively. This device requires two sets of independent mechanisms, resulting in a relatively complex device structure and a large overall volume. The other category is to drive the brush head to rotate circumferentially around the thread by a manipulator to clean the internal and external threads simultaneously. However, this solution relies on a high-precision manipulator and a complex motion control system. With the high-precision manipulator and the complex motion control system, it is still difficult to effectively reduce the equipment volume, restricting its on-site deployment flexibility.

[0006] In summary, in the prior art, the manual brush cleaning method has low efficiency, unstable quality, and poor safety, while the automated equipment generally has problems such as redundant structure, large volume, and high cost. Summary of the Invention

[0007] (1) Technical Problems to be Solved

[0008] In view of the above-mentioned disadvantages and deficiencies of the prior art, the present invention provides a thread cleaning device and a thread cleaning method, which solve the technical problems in the prior art that the manual brush cleaning method has low efficiency, unstable quality, and poor safety, while the automated equipment generally has problems such as redundant structure, large volume, and high cost.

[0009] (2) Technical Solutions

[0010] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0011] In a first aspect, an embodiment of the present invention provides a drill pipe cleaning buckle device, including a brush head mechanism, an adjustment mechanism, and a revolution driving mechanism;

[0012] The adjustment mechanism connects the brush head mechanism and the revolution driving mechanism;

[0013] The rotation axis of the adjustment mechanism is the revolution axis, and the adjustment mechanism is used to adjust the offset between the axis of the brush head mechanism and the revolution axis, so that the head end of the brush head mechanism fits on the thread surface of the male or female buckle of the drill pipe arranged coaxially with the revolution axis;

[0014] The revolution driving mechanism is used to drive the adjustment mechanism and the brush head mechanism with the head end fitting on the thread surface of the male or female buckle of the drill pipe to rotate synchronously around the revolution axis, and the brush head mechanism rotates synchronously around the revolution axis while rotating around its own axis.

[0015] According to the present invention, the adjustment mechanism includes a revolution main shaft and a pusher;

[0016] The axis of the revolution main shaft is the revolution axis, and the revolution main shaft connects the main body of the pusher and the revolution driving mechanism;

[0017] The driving end of the pusher is connected to the brush head mechanism, and the pusher is used to adjust the offset between the axis of the brush head mechanism and the revolution axis.

[0018] According to the present invention, the adjustment mechanism further includes an annular support frame and a swing rod;

[0019] The annular support frame is coaxial with the revolution main shaft;

[0020] The swing rod is inserted into the annular support frame and both ends are swingably connected to the annular support frame along the radial direction of the annular support frame;

[0021] The first end of the swing rod is rotatably connected to the driving end of the pusher, and the second end is fixedly connected to the brush head mechanism;

[0022] The driving end of the pusher can be telescoped to drive both ends of the swing rod to swing, so as to adjust the offset between the axis of the brush head mechanism and the revolution axis.

[0023] According to the present invention, the adjustment mechanism further includes a slider base and a slider;

[0024] The slider base is fixedly connected to the revolution main shaft and the pusher, and a guide groove extending along the radial direction of the revolution main shaft is further provided on the slider base;

[0025] The slider is fixedly connected to the driving end of the pusher and rotatably connected to the first end of the swing rod. The slider is slidably disposed in the guiding groove;

[0026] The pusher can push the slider to slide along the guiding groove, and the slider can drive both ends of the swing rod to swing.

[0027] According to the present invention, it further includes a self-rotation driving mechanism;

[0028] The self-rotation driving mechanism includes a support frame and a self-rotation driver;

[0029] The support frame is fixedly connected to the second end of the swing rod; the main body of the self-rotation driver is rotatably connected to the support frame, and the driving end of the self-rotation driver is connected to the brush head mechanism;

[0030] The swing rod, the support frame, the driving end of the self-rotation driver and the brush head mechanism are coaxially arranged; the self-rotation driver can drive the brush head mechanism to rotate self.

[0031] According to the present invention, it further includes a base;

[0032] Both the revolution main shaft and the annular support frame are rotatably connected to the base;

[0033] The annular support frame is radially fixedly connected with a first fixing pin, and the first fixing pin penetrates the radius of the swing rod. Both ends of the swing rod can swing around the first fixing pin.

[0034] According to the present invention, it further includes a rotary air joint;

[0035] The self-rotation driver is a pneumatic motor, and the pusher is a cylinder;

[0036] The fixed part of the rotary air joint is fixedly connected to the base, and the rotating part of the rotary air joint is fixedly connected to the revolution main shaft; the rotary air joint and the revolution main shaft are coaxial; the rotary air joint is connected to the pneumatic motor and the cylinder through an air pipe.

[0037] According to the present invention, the main body of the revolution driving mechanism is fixed on the base, and the driving end of the revolution driving mechanism is rotatably connected to the base;

[0038] The driving end of the revolution driving mechanism is sleeved with a driving gear, and the driving gear meshes with a driven gear sleeved on the revolution main shaft;

[0039] The revolution driving mechanism drives the adjusting mechanism and the brush head mechanism to rotate synchronously around the revolution axis through the revolution main shaft.

[0040] According to the present invention, the brush head mechanism includes a brush rod and a brush head;

[0041] The first end of the brush rod is detachably connected to the adjusting mechanism, and the second end is provided with the brush head;

[0042] The brush head includes a plurality of elastic bristles, and the bristles are arranged radially.

[0043] In a second aspect, the present invention also provides a method for cleaning the drill pipe coupling, which is applied to the drill pipe coupling cleaning device:

[0044] The steps for the cleaning device to clean the male coupling of the drill pipe are as follows:

[0045] S11: The adjusting mechanism adjusts the offset between the axis of the brush head mechanism and the axis of revolution to a set value;

[0046] S12: Arrange the male coupling of the drill pipe inside the head end of the brush head mechanism and coaxial with the axis of revolution;

[0047] S13: The adjusting mechanism adjusts and reduces the offset between the axis of the brush head mechanism and the axis of revolution, so that the brush head mechanism fits on the outer peripheral thread surface of the male coupling of the drill pipe;

[0048] S14: The revolution driving mechanism drives the adjusting mechanism and the brush head mechanism to rotate synchronously around the axis of revolution, so that the brush head mechanism rotates around the outer periphery of the male coupling of the drill pipe, and the brush head mechanism rotates itself to clean the male coupling of the drill pipe;

[0049] The steps for the cleaning device to clean the female coupling of the drill pipe are as follows:

[0050] S21: The adjusting mechanism adjusts the brush head mechanism to be coaxial with the axis of revolution;

[0051] S22: Sleeve the female coupling of the drill pipe on the outer periphery of the front end of the brush head mechanism and coaxial with the axis of revolution;

[0052] S23: The adjusting mechanism adjusts and increases the offset between the axis of the brush head mechanism and the axis of revolution, so that the brush head mechanism fits on the inner peripheral thread surface of the female coupling of the drill pipe;

[0053] S24: The revolution driving mechanism drives the adjusting mechanism and the brush head mechanism to rotate synchronously around the axis of revolution, so that the brush head mechanism rotates around the inner periphery of the female coupling of the drill pipe, and the brush head mechanism rotates itself to clean the female coupling of the drill pipe.

[0054] (III) Advantageous Effects

[0055] The advantageous effects of the present invention are as follows:

[0056] The cleaning buckle device of the present invention. The adjusting mechanism of the drill pipe cleaning buckle device adjusts the offset of the axis of the brush head mechanism and the axis of revolution in the radial direction of the axis of revolution, so that the head end of the brush head mechanism fits the thread surface of the male or female buckle of drill pipes with different diameters. When the head end of the brush head mechanism fits the thread surface to be cleaned, the brush head mechanism can be driven by the revolution drive mechanism to rotate circumferentially around the drill pipe to be cleaned, and the brush head mechanism can rotate itself to clean the drill pipe, so as to realize the automatic cleaning of the male and female buckles of drill pipes with different diameters, reduce the labor intensity of workers, and improve the cleaning efficiency and cleaning quality.

[0057] At the same time, the drill pipe cleaning buckle device of the present invention can also independently control the revolution drive speed of the brush head mechanism and the rotation speed of the brush head mechanism to meet different cleaning requirements. For example, the rotation speed of the rotation drive can be set to be greater than the revolution drive speed of the revolution drive mechanism, so that the brush head mechanism can clean the thread surface at a relatively high rotation speed, improve the cleaning efficiency and cleaning quality, and can move circumferentially along the thread surface at a relatively low revolution speed to further improve the cleaning quality and complete the cleaning buckle operation at one time. Moreover, the brush head mechanism rotating at a high speed can also avoid the oil stains adhering to the thread surface to ensure the cleanliness of the brush head mechanism and further improve the cleaning buckle quality.

[0058] Secondly, the present application has a high degree of integration and can be installed and used as an independent module, or can be used in combination with a thread greasing device, with high installation flexibility. Furthermore, the present application only needs to arrange a set of brush head mechanism, adjusting mechanism and revolution drive mechanism to carry out the cleaning buckle operation on the male and female buckles, with a simple overall structure, a small volume and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 is a three-dimensional schematic diagram of the drill pipe cleaning buckle device of the present invention;

[0060] Figure 2 is Figure 1 the front view of;

[0061] Figure 3 is an assembly drawing of the base and the revolution drive mechanism;

[0062] Figure 4 is an assembly drawing of the adjusting mechanism 2 and the rotary air joint;

[0063] Figure 5 is a partial schematic diagram of the adjusting mechanism 2;

[0064] Figure 6 is Figure 5 the sectional view of;

[0065] Figure 7 is a three-dimensional schematic diagram of the rotation drive mechanism;

[0066] Figure 8For Figure 7 is a sectional view;

[0067] Figure 9 is a perspective schematic view of the brush head mechanism.

[0068]

Explanation of the attached drawing reference numerals

[0069] 1: Brush head mechanism; 11: Brush rod; 12: Brush head;

[0070] 2: Adjustment mechanism; 21: Revolution main shaft; 22: Pusher; 23: Annular support frame; 24: Swing rod; 25: Slide block base; 251: Guide groove; 26: Slide block; 27: First fixing pin;

[0071] 3: Revolution drive mechanism; 31: Revolution driver; 32: Driving gear; 33: Driven gear;

[0072] 4: Rotation drive mechanism; 41: Support frame; 411: Support shell; 412: End cover; 42: Rotation driver; 43: Connecting rod;

[0073] 5: Base; 51: Interface;

[0074] 6: Rotary air joint;

[0075] 7: Quick connector;

[0076] 8: Second fixing pin;

[0077] 9: Bearing;

[0078] 10: Connecting pin. Specific implementation manner

[0079] In order to better explain the present invention for easy understanding, the present invention will be described in detail below with reference to the attached drawings through specific implementation manners.

[0080] Refer to Figures 1-9 , the drill pipe cleaning device proposed in the embodiment of the present invention is used to clean the threads of the male or female threads of the drill pipe.

[0081] Refer to Figure 1 and 2 , the drill pipe cleaning device includes a brush head mechanism 1, an adjustment mechanism 2 and a revolution drive mechanism 3.

[0082] The adjusting mechanism 2 connects the brush head mechanism 1 and the revolution driving mechanism 3. The rotation axis of the adjusting mechanism 2 is the revolution axis. The adjusting mechanism 2 is used to adjust the offset between the axis of the brush head mechanism 1 and the revolution axis, so that the head end of the brush head mechanism 1 fits on the thread surface of the male or female thread of the drill pipe arranged coaxially with the revolution axis. The revolution driving mechanism 3 is used to drive the adjusting mechanism 2 and the brush head mechanism 1 with the head end fitting on the thread surface to rotate synchronously around the revolution axis. When the brush head mechanism 1 rotates around the revolution axis, it rotates self - synchronously.

[0083] Based on the above settings, the adjusting mechanism 2 of the drill pipe thread cleaning device adjusts the offset between the axis of the brush head mechanism 1 and the revolution axis in the radial direction of the revolution axis, so that the head end of the brush head mechanism 1 can be adapted to fit on the thread surface of the male or female thread of drill pipes with different diameters. When the head end of the brush head mechanism 1 fits on the thread surface to be cleaned, the brush head mechanism 1 can be driven by the revolution driving mechanism 3 to rotate circumferentially around the drill pipe to be cleaned, and the brush head mechanism 1 can rotate self - synchronously to clean the drill pipe, so as to realize the automatic cleaning of the male and female threads of drill pipes with different diameters, reduce the labor intensity of workers, and improve the thread cleaning efficiency and cleaning quality.

[0084] Meanwhile, the drill pipe thread cleaning device can also independently control the revolution driving speed of the brush head mechanism 1 and the self - rotation speed of the brush head mechanism 1 to meet different thread cleaning requirements. For example, the rotation speed of the self - rotation driver 42 can be set to be greater than the rotation speed of the revolution driving mechanism 3, so that the brush head mechanism 1 can clean the thread surface at a relatively high self - rotation speed, improve the cleaning efficiency and cleaning quality, and can move circumferentially along the thread surface at a relatively low revolution speed to further improve the cleaning quality and complete the thread cleaning operation at one time. Moreover, the brush head mechanism rotating at a high speed can also avoid the oil stain adhering to the thread surface, so as to ensure the cleanliness of the brush head mechanism and further improve the thread cleaning quality.

[0085] Secondly, the integration degree of this application is relatively high. It can be installed and used as an independent module, or can be used in combination with a thread greasing device, and the installation flexibility is relatively high. Furthermore, this application only needs to arrange a set of brush head mechanism, adjusting mechanism and revolution driving mechanism to carry out thread cleaning operations on male and female threads. The overall structure is simple, the volume is small, and the maintenance is convenient.

[0086] Furthermore, the thread cleaning method of the drill pipe thread cleaning device includes the following steps:

[0087] The steps for the thread cleaning device to clean the male thread of the drill pipe are as follows:

[0088] S11: The adjusting mechanism 2 adjusts the offset between the axis of the brush head mechanism 1 and the revolution axis to a set value.

[0089] S12: Place the male thread of the drill pipe inside the head end of the brush head mechanism 1 and coaxial with the revolution axis.

[0090] S13: The adjusting mechanism 2 adjusts and reduces the offset between the axis of the brush head mechanism 1 and the revolution axis, so that the brush head mechanism 1 approaches and fits onto the outer circumferential thread surface of the male thread of the drill pipe.

[0091] S14: The revolution driving mechanism 3 drives the adjusting mechanism 2 and the brush head mechanism 1 to rotate synchronously around the revolution axis, so that the brush head mechanism 1 rotates around the outer circumference of the male thread of the drill pipe, and the brush head mechanism 1 rotates itself to clean the male thread of the drill pipe.

[0092] The steps for the thread cleaning device to clean the female thread of the drill pipe are as follows:

[0093] S21: The adjusting mechanism 2 adjusts the axis of the brush head mechanism 1 to be coaxial with the revolution axis.

[0094] S22: The female thread of the drill pipe is sleeved on the outer circumference of the front end of the brush head mechanism 1 and is coaxial with the revolution axis.

[0095] S23: The adjusting mechanism 2 adjusts and increases the offset between the axis of the brush head mechanism 1 and the revolution axis, so that the brush head mechanism 1 approaches and fits onto the inner circumferential thread surface of the female thread of the drill pipe.

[0096] S24: The revolution driving mechanism 3 drives the brush head mechanism 1 to rotate around the revolution axis, so that the brush head mechanism 1 rotates around the inner circumference of the female thread of the drill pipe, and the brush head mechanism 1 rotates itself to clean the female thread of the drill pipe.

[0097] As can be seen from the above, the drill pipe thread cleaning mechanism of the present invention can efficiently and conveniently realize the automatic cleaning of the threads of the male and female threads of drill pipes with different diameters.

[0098] Specifically, step S14 further includes:

[0099] After the circumferential thread surface of the male thread of the drill pipe is cleaned by the brush head mechanism 1, the revolution driving mechanism 3 stops driving, the adjusting mechanism 2 adjusts the offset between the axis of the brush head mechanism 1 and the revolution axis to the maximum set value, and then the drill pipe is separated from the brush head mechanism 1, waiting for the next thread cleaning operation.

[0100] Step S24 further includes:

[0101] After the circumferential thread surface of the female thread of the drill pipe is cleaned by the brush head mechanism 1, the revolution driving mechanism 3 stops driving, the adjusting mechanism 2 adjusts the axis of the brush head mechanism 1 to be coaxial with the revolution axis, and then the drill pipe is separated from the brush head mechanism 1, waiting for the next thread cleaning operation.

[0102] See Figure 9 , further, the brush head mechanism 1 includes a brush rod 11 and a brush head 12.

[0103] The first end of the brush rod 11 is detachably connected to the adjustment mechanism 2, and the second end is provided with a brush head 12. The revolution driving mechanism 3 drives the brush head mechanism 1 to rotate synchronously around the revolution axis through the adjustment mechanism 2. The brush rod 11 is detachably connected for easy replacement. Preferably, the first end of the brush rod 11 is detachably connected to the adjustment mechanism 2 through a quick connector 7, which is further convenient for replacement.

[0104] Preferably, the brush head 12 includes a plurality of elastic bristles, and the bristles are arranged radially, so that the brush head 12 can be inserted into the recesses of the threaded surface of the drill pipe to be cleaned, so as to further improve the cleaning quality of the screw thread.

[0105] Optionally, the brush head 12 is made of steel wire bristles.

[0106] See Figure 4 , further, the adjustment mechanism 2 includes a revolution main shaft 21 and a pusher 22.

[0107] The axis of the revolution main shaft 21 is the revolution axis. The revolution main shaft 21 is connected to the main body of the pusher 22 and the revolution driving mechanism 3, so that the revolution driving mechanism 3 drives the adjustment mechanism 2 and the brush head mechanism 1 to rotate synchronously around the revolution axis through the revolution main shaft 21.

[0108] The driving end of the pusher 22 is connected to the brush head mechanism 1, and the pusher 22 is used to adjust the offset amount between the axis of the brush head mechanism 1 and the revolution axis.

[0109] Optionally, the offset mode between the axis of the brush head mechanism 1 and the revolution axis includes the following two embodiments:

[0110] Embodiment 1: The pusher 22 drives the brush head mechanism 1 to move radially along the revolution axis relative to the revolution axis, so as to adjust the radial offset amount of the axis of the brush head mechanism 1 relative to the revolution axis; or,

[0111] Embodiment 2: The pusher 22 drives the brush head mechanism 1 to swing relative to the revolution axis, so as to adjust the radial offset amount of the axis of the brush head mechanism 1 relative to the revolution axis.

[0112] Preferably, the pusher 22 drives the brush head mechanism 1 to swing relative to the revolution axis, so as to increase the offset amount of the head end of the brush head mechanism 1 relative to the revolution axis, so as to increase the range of the drill pipe diameters adapted to be cleaned by the combing mechanism 1.

[0113] Further, the specific structure of Embodiment 1 is:

[0114] The adjustment mechanism 2 includes an annular support frame 23 and a push rod.

[0115] The annular support frame 23 is coaxial with the revolution main shaft 21. The push rod is inserted into the annular support frame 23 so as to be able to move radially along the annular support frame 23. The two ends of the push rod are respectively fixedly connected to the driving end of the pusher 22 and the brush rod 11 of the brush head mechanism 1.

[0116] The driving end of the pusher 22 can extend and retract to drive the swing rod 24 to move radially along the annular support frame 23. The swing rod 24 can drive the brush head mechanism 1 to move synchronously, so as to adjust the offset of the axis of the brush head mechanism 1 and the axis of revolution in the radial direction of the axis of revolution.

[0117] Specifically, a slide rail extending radially is fixedly arranged in the annular support frame 23, and the push rod is slidably arranged on the slide rail to improve the moving accuracy of the push rod, and further improve the offset adjustment accuracy of the axis of the brush head mechanism 1 and the axis of revolution.

[0118] See Figure 5 and 6 , further, the specific structure of Embodiment 2 is:

[0119] The adjusting mechanism 2 further includes an annular support frame 23 and a swing rod 24.

[0120] The annular support frame 23 is coaxial with the revolution main shaft 21. The swing rod 24 is inserted into the annular support frame 23 and both ends thereof are swingably connected to the annular support frame 23 along the radial direction of the annular support frame 23. The first end of the swing rod 24 is rotatably connected to the driving end of the pusher 22, and the second end is fixedly connected to the brush rod 11 of the brush head mechanism 1.

[0121] The driving end of the pusher 22 can extend and retract to drive both ends of the swing rod 24 to swing. The second end of the swing rod 24 drives the brush head mechanism 1 to swing synchronously relative to the pusher 22, so as to adjust the offset of the axis of the brush head mechanism 1 and the axis of revolution.

[0122] When cleaning the buckle, the revolution driving mechanism 3 can drive the pusher 22, the swing rod 24, the annular support frame 23 and the brush head mechanism 1 to rotate synchronously around the axis of revolution through the revolution main shaft 21.

[0123] See Figure 2 , Figure 5 and 6 , specifically, the first end of the swing rod 24 is rotatably connected to the driving end of the pusher 22 through the second fixing pin 8, and the second end is fixedly connected to the brush head mechanism 1 through the connecting pin 10.

[0124] See Figure 4 , specifically, to limit the swinging direction of the brush head mechanism 1 and improve the adjustment accuracy of the offset of the brush head mechanism 1, the adjusting mechanism 2 further includes a slider base 25 and a slider 26.

[0125] The slider base 25 is fixedly connected to the revolution main shaft 21 and the pusher 22. A guide groove 251 extending radially along the revolution main shaft 21 is further arranged on the slider base 25. The slider 26 is fixedly connected to the driving end of the pusher 22 and rotatably connected to the first end of the swing rod 24, and the slider 26 is slidably arranged in the guide groove 251.

[0126] The pusher 22 can push the slider 26 to slide along the guide groove 251, and the slider 26 can drive the swing rod 24 to swing at both radial ends along the radial direction of the annular support frame 23 (or the radial direction of the revolution main shaft 21), thereby restricting the swing direction of the brush head mechanism 1 and improving the offset accuracy of the axis of the swing rod 24 driving the brush head mechanism 1 relative to the revolution axis.

[0127] See Figure 7 and 8 , further, to realize the self-rotation of the brush head mechanism 1, the drill pipe cleaning buckle mechanism further includes a self-rotation drive mechanism 4.

[0128] The self-rotation drive mechanism 4 includes a support frame 41 and a self-rotation driver 42.

[0129] The support frame 41 is fixedly connected to the second end of the swing rod 24. The main body of the self-rotation driver 42 is rotatably connected to the support frame 41, and the driving end of the self-rotation driver 42 is connected to the brush rod 11 of the brush head mechanism 1. The swing rod 24, the support frame 41, the driving end of the self-rotation driver 42, and the brush head mechanism 1 are coaxially arranged. When the swing rod 24 swings, the second end of the swing rod 24 can drive the axes of the self-rotation driver 42 and the brush head mechanism 1 to swing and offset synchronously relative to the revolution axis through the support frame 41.

[0130] The self-rotation driver 42 can drive the brush head mechanism 1 to rotate self. During cleaning the buckle, the revolution drive mechanism 3 can drive the adjustment mechanism 2, the self-rotation drive mechanism 4, and the brush head mechanism 1 to rotate synchronously around the revolution axis. At the same time, the self-rotation drive mechanism 4 can drive the brush head mechanism 1 to rotate self.

[0131] Thus, the brush head mechanism 1 can rotate self while revolving around the revolution axis, and can independently adjust the revolution speed and the self-rotation speed of the brush head mechanism 1 through the revolution drive mechanism 3 and the self-rotation driver 42 to meet different cleaning buckle requirements and improve the cleaning buckle efficiency and quality.

[0132] Specifically, the support frame 41 includes a support shell 411 and an end cover 412 that are detachably connected to each other by screws. The cavity enclosed between the support shell 411 and the end cover 412 is used to accommodate the self-rotation driver 42. The driving end of the self-rotation driver 42 is rotatably connected to the inside of the support shell 411 through a bearing 9 and extends out of the end face of the support shell 411.

[0133] Specifically, the driving end of the self-rotation driver 42 can be fixedly connected to the connecting rod 43 by welding or the like. The connecting rod 43 is preferably detachably connected to the first end of the brush rod 11 through a quick connector 7. The swing rod 24, the support frame 41, the driving end of the self-rotation driver 42, and the brush rod 11 are coaxially arranged so that when the swing rod 24 swings, the second end of the swing rod 24 can drive the axes of the self-rotation driver 42, the connecting rod 43, and the brush head mechanism 1 to swing and offset synchronously relative to the revolution axis through the support frame 41.

[0134] See Figures 1-3 Furthermore, to support the brush head mechanism 1, the adjustment mechanism 2, and the revolution drive mechanism 3, the drill pipe cleaning and fastening device further includes a base 5.

[0135] The revolution main shaft 21 and the annular support frame 23 are both rotatably connected to the base 5 to support the revolution main shaft 21 and the annular support frame 23. A first fixing pin 27 is fixedly connected radially to the annular support frame 23. The first fixing pin 27 passes through the radial direction of the swing rod 24, and both ends of the swing rod 24 can swing around the first fixing pin 27.

[0136] When the revolution drive mechanism 3 drives the adjustment mechanism 2 and the brush head mechanism 1 to rotate synchronously around the revolution axis, both the revolution main shaft 21 and the annular support frame 23 can rotate synchronously around the revolution axis relative to the base 5.

[0137] Specifically, the outer peripheries of the revolution main shaft 21 and the annular support frame 23 are both rotatably connected to the connection holes of the base 5 through bearings 9.

[0138] See Figures 1-2 Preferably, since the working environment of the drill pipe cleaning and fastening operation is harsh, there is a large amount of oil stain, and the explosion-proof requirement needs to be met. Moreover, the installation conditions of the drill pipe cleaning and fastening device are limited, and the requirement of a small volume needs to be met. Therefore, compared with the relatively large explosion-proof motor, the present application preferably sets the rotation driver 42 as a pneumatic motor and sets the pusher 22 as a cylinder to simultaneously meet the requirements of explosion-proof and small volume, and can also effectively reduce energy consumption.

[0139] Specifically, when the rotation driver 42 is set as a pneumatic motor and the pusher 22 is set as a cylinder, both of them need to be supplied with air through air pipes. Since both of them rotate around the revolution axis during cleaning and fastening, to avoid the air pipes from being twisted and wound during rotation, the drill pipe cleaning and fastening device further includes a rotary air joint 6, and its specific connection method is as follows:

[0140] Fix the fixed part of the rotary air joint 6 to the base 5, and fix the rotating part of the rotary air joint 6 to the revolution main shaft 21. The rotary air joint 6 and the revolution main shaft 21 are coaxial. The rotary air joint 6 is connected to the rotation driver 42 and the pusher 22 through air pipes.

[0141] The rotating part of the rotary air joint 6 can drive the air pipe to rotate synchronously around the revolution axis with the rotation driver 42 and the pusher 22, avoiding the air pipes from being twisted and wound. The air source connected to the rotary air joint 6 can supply air to the rotation driver 42 and the pusher 22 through the rotary air joint 6 and the air pipes.

[0142] See Figure 3 Furthermore, the main body of the revolution drive mechanism 3 is fixed on the base 5 to support the revolution drive mechanism 3.

[0143] The driving end of the revolution driving mechanism 3 is rotatably connected to the base 5. The driving end of the revolution driving mechanism 3 is sleeved with a driving gear 32, and the driving gear 32 meshes with a driven gear 33 sleeved on the revolution main shaft 21.

[0144] The revolution driving mechanism 3 drives the driving gear 32 to rotate around the revolution axis, and the driving gear 32 meshes with the driven gear 33, so that the driven gear 33 drives the revolution main shaft 21 to drive the adjusting mechanism 2 and the brush head mechanism 1 to rotate synchronously around the revolution axis.

[0145] Thus, through the indirect transmission of the driving gear 32 and the driven gear 33, the driving end of the revolution driving mechanism 3 can avoid the connection between the rotary air joint 6 and the revolution main shaft 21, so as to facilitate installation.

[0146] See Figure 1 , further, the drill pipe cleaning device is integrated on the base 5, and a plurality of interfaces 51 are arranged on the base 5, so as to facilitate connecting the drill pipe cleaning device to other devices by passing screws through the interfaces 51.

[0147] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely means that the first feature has a lower horizontal height than the second feature.

[0148] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples", etc., mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0149] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drill rod cleaning device, characterized in that: It comprises a brush head mechanism (1), an adjustment mechanism (2) and a revolution drive mechanism (3); The adjustment mechanism (2) connects the brush head mechanism (1) and the revolution driving mechanism (3); The rotation axis of the adjustment mechanism (2) is the revolution axis, and the adjustment mechanism (2) is used to adjust the offset between the axis of the brush head mechanism (1) and the revolution axis, so that the head end of the brush head mechanism (1) fits on the threaded surface of the male or female thread of the drill rod coaxially arranged with the revolution axis; The revolution drive mechanism (3) is used to drive the adjustment mechanism (2) and the brush head mechanism (1) whose head end is attached to the threaded surface of the male buckle or the female buckle of the drill rod to rotate synchronously around the revolution axis, and the brush head mechanism (1) rotates synchronously when rotating around the revolution axis.

2. The drill rod cleaning device according to claim 1, characterized in that: The regulating mechanism (2) comprises a revolving main shaft (21) and a pusher (22); The axis of the revolution main shaft (21) is the revolution axis, and the revolution main shaft (21) connects the main body of the pusher (22) and the revolution driving mechanism (3); The driving end of the pusher (22) is connected to the brush head mechanism (1), and the pusher (22) is used to adjust the offset between the axis and the revolution axis of the brush head mechanism (1).

3. The drill rod cleaning device according to claim 2, characterized in that: The regulating mechanism (2) further comprises an annular support frame (23) and a swing rod (24); The annular support frame (23) and the revolution main axis (21) are coaxial; The swing rod (24) is inserted into the annular support frame (23) and connected to the annular support frame (23) at both ends so as to be swingable along the radial direction of the annular support frame (23); The first end of the swing rod (24) is rotatably connected to the driving end of the pusher (22), and the second end is fixedly connected to the brush head mechanism (1); The driving end of the pusher (22) can be extended and retracted to drive the two ends of the swing rod (24) to swing, so as to adjust the offset between the axis of the brush head mechanism (1) and the revolution axis.

4. The drill rod cleaning device according to claim 3, characterized in that: The adjustment mechanism (2) further comprises a slider base (25) and a slider (26); The slider base (25) is fixedly connected to the revolution main shaft (21) and the pusher (22), and the slider base (25) is also provided with a guide groove (251) extending in the radial direction of the revolution main shaft (21); The slider (26) is fixedly connected to the driving end of the pusher (22) and rotatably connected to the first end of the swing rod (24), and the slider (26) is slidably disposed in the guide groove (251); The pusher (22) can push the slider (26) to slide along the guide groove (251), and the slider (26) can drive the two ends of the swing rod (24) to swing.

5. The drill rod cleaning device according to claim 3, characterized in that: It also includes a rotation drive mechanism (4); The self-rotation driving mechanism (4) comprises a support frame (41) and a self-rotation driving device (42); The support frame (41) is fixedly connected to the second end of the swing rod (24); the main body of the self-rotation driver (42) is rotatably connected to the support frame (41), and the driving end of the self-rotation driver (42) is connected to the brush head mechanism (1); The swing rod (24), the support frame (41), the driving end of the self-rotating driver (42) and the brush head mechanism (1) are coaxially arranged; the self-rotating driver (42) can drive the brush head mechanism (1) to rotate.

6. The drill rod cleaning device according to claim 3, characterized in that: Also includes a base (5); The revolving main shaft (21) and the annular support frame (23) are both rotatably connected to the base (5); The annular support frame (23) is radially fixedly connected to a first fixing pin (27), the first fixing pin (27) passes through the radial direction of the swing rod (24), and both ends of the swing rod (24) can swing around the first fixing pin (27).

7. The drill rod cleaning device according to claim 6, characterized in that: Also includes a rotary gas joint (6); The self-rotation driver (42) is a pneumatic motor, and the pusher (22) is a cylinder; The fixed part of the rotary air joint (6) is fixedly connected to the base (5), and the rotating part of the rotary air joint (6) is fixedly connected to the orbital spindle (21); the rotary air joint (6) and the orbital spindle (21) are coaxial; the rotary air joint (6) is connected to the pneumatic motor and the cylinder via an air pipe.

8. The drill rod cleaning device according to claim 7, characterized in that: The main body of the revolution driving mechanism (3) is fixed on the base (5), and the driving end of the revolution driving mechanism (3) is rotatably connected to the base (5); A driving gear (32) is sleeved on the driving end of the revolving driving mechanism (3), and the driving gear (32) is meshed with a driven gear (33) sleeved on the revolving main shaft (21); The revolution drive mechanism (3) drives the adjustment mechanism (2) and the brush head mechanism (1) to rotate synchronously around the revolution axis through the revolution main shaft (21).

9. The drill rod cleaning device according to claim 1, characterized in that: The brush head mechanism (1) comprises a brush rod (11) and a brush head (12); The first end of the brush rod (11) is detachably connected to the adjustment mechanism (2), and the second end is provided with the brush head (12); The brush head (12) comprises a plurality of elastic bristles, and the bristles are arranged radially.

10. A method for cleaning a drill pipe, applied to the drill pipe cleaning device according to any one of claims 1 to 9, characterized in that: The steps of the buckle cleaning device for cleaning the drill pipe male buckle are as follows: S11: the adjusting mechanism (2) adjusts the offset between the axis of the brush head mechanism (1) and the revolution axis to a set value; S12: arranging the male buckle of the drill rod on the inner side of the head end of the brush head mechanism (1) and coaxial with the revolution axis; S13: the adjusting mechanism (2) adjusts and reduces the offset between the axis of the brush head mechanism (1) and the revolution axis, so that the brush head mechanism (1) fits onto the outer peripheral thread surface of the male buckle of the drill rod; S14: the revolution drive mechanism (3) drives the adjustment mechanism (2) and the brush head mechanism (1) to rotate synchronously around the revolution axis, so that the brush head mechanism (1) rotates around the outer circumference of the male buckle of the drill rod, and the brush head mechanism (1) rotates on itself to clean the male buckle of the drill rod; The steps of the cleaning device for cleaning the drill pipe box buckle are as follows: S21: the adjusting mechanism (2) adjusts the brush head mechanism (1) to be coaxial with the revolution axis; S22: sleeve the female buckle of the drill rod onto the outer periphery of the front end of the brush head mechanism (1) and make it coaxial with the revolution axis; S23: the adjusting mechanism (2) adjusts and increases the offset between the axis of the brush head mechanism (1) and the revolution axis, so that the brush head mechanism (1) fits onto the inner circumferential thread surface of the female buckle of the drill rod; S24: The revolution drive mechanism (3) drives the adjustment mechanism (2) and the brush head mechanism (1) to rotate synchronously around the revolution axis, so that the brush head mechanism (1) rotates around the inner circumference of the female buckle of the drill rod, and the brush head mechanism (1) rotates to clean the female buckle of the drill rod.

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