阅读说明：本技术 一种油田井口现场进行管杆的机械冷清洗系统 (Mechanical cold cleaning system for pipe rod on site at oil field wellhead ) 是由 孟宪宇 何深宽 高志明 何卫兵 徐明顺 孟昭焱 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种油田井口现场进行管杆的机械冷清洗系统,包括车内安装端和延伸端,所述车内安装端的底端设置有外调高架,所述延伸端的底端设置有内调高架,内调高架和外调高架之间通过液压伸缩缸连接,延伸端的表面依次设置有待清洗管道放置区、管杆外清洗后放置架和出管区,不仅实现了自动的上料、工位变化、自动的下料,而且能够自动的管杆的内壁和外壁进行清洗作业,实现了全程自动化,有效的降低了工人的劳动强度,通过往复运动的喷头能够精准的对管杆的内部每处位置进行清洗作业,利用钢丝刷管壁机能够对管杆的外部进行全方位的清洗作业,由此进行清洗作业,有效的提高了清洗的效率,而且可以有效的减少污水的产生。(The invention discloses a mechanical cold cleaning system for pipe rods at the oil field well mouth site, which comprises an in-vehicle mounting end and an extension end, wherein an outer height-adjusting frame is arranged at the bottom end of the in-vehicle mounting end, an inner height-adjusting frame is arranged at the bottom end of the extension end, the inner height-adjusting frame and the outer height-adjusting frame are connected through a hydraulic telescopic cylinder, a pipeline placing area to be cleaned, a pipe rod outer cleaning placing frame and a pipe outlet area are sequentially arranged on the surface of the extension end, so that not only are automatic feeding, station change and automatic blanking realized, but also the inner wall and the outer wall of the pipe rod can be automatically cleaned, the whole-process automation is realized, the labor intensity of workers is effectively reduced, each position in the pipe rod can be accurately cleaned through a reciprocating nozzle, and the pipe wall of the pipe rod can be cleaned in all directions by utilizing a steel brush machine to clean the outer part of the pipe rod, so as to clean the pipe rod, the cleaning efficiency is effectively improved, and the generation of sewage can be effectively reduced.)

1. The utility model provides an oil field well head is on-spot carries out cold cleaning system of machinery of pipe pole, installation end (1) and extension end (2) in the car, the bottom of installation end (1) is provided with outer height-regulating frame (12) in the car, the bottom of extension end (2) is provided with interior height-regulating frame (11), connect characterized by through hydraulic telescoping cylinder (10) between interior height-regulating frame (11) and outer height-regulating frame (12): the surface of the extension end (2) is sequentially provided with a place area (3) for cleaning a pipeline, a place area (5) for cleaning the outside of the pipe rod and a pipe outlet area (6), the place area (3) for cleaning the outside of the pipe rod is connected with the place area (3) for cleaning the outside of the pipe rod through a transverse adjusting cylinder (26), a pipe rod moving manipulator (7) for moving the pipe rod is arranged in the extension end (2) of the extension end (2) between the place area (3) for cleaning the pipeline and the place area (5) for cleaning the outside of the pipe rod, a pipe rod inner cleaning structure (4) is arranged on the extension end (2) close to one end of a vehicle inner mounting end (1), a front spray cover (20) is arranged on the surface of the pipe rod inner cleaning structure (4), one end of the place area (5) close to the vehicle inner mounting end (1) is provided with a steel wire brush pipe wall machine (9), and the position of the surface of the vehicle inner mounting end (1) corresponding to the steel wire brush pipe wall machine (9) is provided with an outer cleaning function A pipe conveying structure (8).

2. The mechanical cold cleaning system for the pipe rod on the site of the oilfield wellhead according to claim 1, which is characterized in that: the pipeline placing area (3) to be cleaned comprises a placing frame (13) arranged on one side of the extending end (2), and roller frames (14) are distributed in the placing frame (13).

3. The mechanical cold cleaning system for the pipe rod on the site of the oilfield wellhead according to claim 1, which is characterized in that: the pipe pole inner cleaning structure (4) comprises a displacement trolley (18) arranged inside the extension end (2), a guide rail (19) is arranged at the bottom end of the extension end (2) corresponding to the displacement trolley (18), the top end of the displacement carriage (18) is arranged above the surface of the extension end (2), a rear outer box (15) is arranged at the top end of the displacement trolley (18), a cleaning motor (16) is arranged in the outer box (15) at a position corresponding to the pipe rod moving manipulator (7), an output shaft of the cleaning motor (16) penetrates through the outer box (15) and extends to the outside of the outer box and is connected with a cleaning pipe (17), a movable cleaning pipe bracket (22) is arranged at the position on the surface of the guide rail (19) corresponding to the lower part of the cleaning pipe (17), the displacement trolley (18) is connected with the movable cleaning pipe bracket (22) and the movable cleaning pipe bracket (22) is connected with the side surface of the front spray cover (20) through zippers (21).

4. The mechanical cold cleaning system for the pipe rod on the oilfield wellhead site as claimed in claim 3, wherein the mechanical cold cleaning system comprises: the top end of the cleaning pipe (17) is arranged in the front spray cover (20) at the initial position, and the outermost side of the outer box (15) and the outermost side of the placing frame (13) are arranged on the same plane.

5. The mechanical cold cleaning system for the pipe rod on the site of the oilfield wellhead according to claim 1, which is characterized in that: the pipe pole washs the equipartition in back rack (5) outward and has low tube conveyer (23), the face that low tube conveyer (23) correspond in the car installation end (1) is connected with extension end (2) through vertical adjusting cylinder (27), the surface distribution of low tube conveyer (23) has four low tube conveyor roller (24), the bottom of low tube conveyer (23) is provided with unloading motor (25) that provide power for low tube conveyor roller (24).

6. The mechanical cold cleaning system for the pipe rod on the site of the oilfield wellhead according to claim 1, which is characterized in that: the pipe pole moving manipulator (7) comprises a bearing plate (28) arranged on the surface, the position of the surface of the bearing plate (28) corresponding to a pipe placing area (3) to be cleaned is provided with a first inclined groove (29), the position of the surface of the bearing plate (28) corresponding to a pipe pole inner cleaning structure (4) is provided with a second inclined groove (30), the position of the surface of the bearing plate (28) corresponding to a pipe pole outer cleaning rear placing frame (5) is provided with a third inclined groove (31), both sides of the bottom end of the bearing plate (28) are connected with a vehicle inner mounting end (1) through shaft sleeve orientation structures (32), the middle of the bottom end of the bearing plate (28) is connected with the vehicle inner mounting end (1) through a bearing plate inclined power cylinder (33), and the bearing plate inclined power cylinder (33) is connected with the bearing plate inclined power cylinder (34).

7. The mechanical cold cleaning system for the pipe rod on the oilfield wellhead site as claimed in claim 6, wherein the mechanical cold cleaning system comprises: the inclined groove I (29), the inclined groove II (30) and the inclined groove III (31) are all arranged to be relatively lower on one side closer to the pipeline placing area (3) to be cleaned.

8. The mechanical cold cleaning system for the pipe rod on the site of the oilfield wellhead according to claim 1, which is characterized in that: the outer cleaning pipe conveying structure (8) comprises a pipe conveying conveyor (35) arranged on the surface of the mounting end (1) in the vehicle, a pipe conveying roller (36) is arranged on the surface of the pipe conveying conveyor (35), and a conveying motor (37) for providing power for the pipe conveying roller (36) is arranged at the bottom end of the pipe conveying conveyor (35).

9. The mechanical cold cleaning system for the pipe rod on the site of the oilfield wellhead according to claim 1, which is characterized in that: pressing frames (38) are mounted on two sides of the steel wire brush pipe wall machine (9), pressing rollers (39) are arranged at positions, corresponding to the pipe conveying machine (35), of the bottom ends of the pressing frames (38), and pressing rollers (39) are also arranged at positions, corresponding to the pipe conveying machine (23), of the bottom ends of the pressing frames (38).

Technical Field

The invention relates to the technical field of pipe rod cleaning, in particular to a mechanical cold cleaning system for a pipe rod on site at an oilfield wellhead.

Background

An oil field refers to a specific area of crude oil production. Sometimes referred to collectively as the reservoir of oil accumulated in the subsurface of a particular area. Several oil zones are broadly referred to together as an oil field. Such as Daqing oil field, North sea oil field in England, autumn Bright oil field in Russia, etc.

The pipe pole is inevitably needed to be used in the exploitation process in oil field, need wash the operation to the pipe pole after using certain time, the operation is washd to the pipe pole to the equipment that adopts similar to the watering lorry to adopt artifical handheld spray gun to wash the operation to most present washing restoration, though can wash the operation, nevertheless so wash the operation, a large amount of water resources of not only wasting, and the handheld spray gun that needs the workman to make a round trip when wasing walks about, make workman's intensity of labour great, moreover can produce a large amount of sewage when wasing the pipe pole, thereby cause great pollution to the environment on every side.

Disclosure of Invention

In order to overcome the defects in the background art, the invention discloses a mechanical cold cleaning system for a pipe rod on site at an oilfield wellhead, which not only realizes automatic feeding, station change and automatic discharging, but also can automatically clean the inner wall and the outer wall of the pipe rod, realizes the whole-process automation, effectively reduces the labor intensity of workers, can accurately clean each position inside the pipe rod through a reciprocating nozzle, and can comprehensively clean the outside of the pipe rod by using a wire brushing machine, thereby cleaning, effectively improving the cleaning efficiency and effectively reducing the generation of sewage.

In order to realize the purpose, the invention adopts the following technical scheme:

a mechanical cold cleaning system for pipe rods on the site of an oilfield wellhead comprises an in-vehicle mounting end and an extension end, wherein an outer height-adjusting frame is arranged at the bottom end of the in-vehicle mounting end, an inner height-adjusting frame is arranged at the bottom end of the extension end, the inner height-adjusting frame and the outer height-adjusting frame are connected through a hydraulic telescopic cylinder, a pipeline placing area to be cleaned, a pipe rod after-cleaning placing frame and a pipe outlet area are sequentially arranged on the surface of the extension end, the pipe rod after-cleaning placing frame is connected with the pipeline placing area to be cleaned through a transverse adjusting cylinder, a pipe rod moving manipulator for moving the pipe rods is arranged inside the extension end, a pipe rod inner cleaning structure is arranged on the extension end between the pipeline placing area to be cleaned and the pipe rod after-cleaning placing frame, a front spray cover is arranged on the surface of the extension end, which is close to one end of the in-vehicle mounting end, of the pipe rod after-cleaning placing frame, a steel wire brush pipe wall machine is arranged at one end, which is close to the in-vehicle mounting end, and outer cleaning pipe conveying structures are uniformly distributed on the surface of the mounting end in the vehicle corresponding to the position of the steel wire brush pipe wall machine.

The cleaning pipeline placing area comprises a placing frame arranged on one side of the extending end, and roller carriers are distributed in the placing frame.

The utility model discloses a pipe pole inner cleaning structure, including installing at the inside displacement dolly that extends the end, the inside bottom that corresponds the displacement dolly of end of extending is provided with the guide rail, the top setting of displacement dolly is in the surperficial top that extends the end, outer container after the top installation of displacement dolly, the inside position department that corresponds pipe pole mobile manipulator of outer container installs the cleaning motor, the output shaft of cleaning motor runs through and extends to the outside of outer container and is connected with the scavenge pipe, the position department that the surface of guide rail corresponds the scavenge pipe below installs the removal scavenge pipe support, the displacement dolly all is connected through the zip fastener with the side of removing the scavenge pipe support and the place ahead spray the cover.

The top end of the cleaning pipe is arranged in the front spraying cover in the initial position, and the outermost side of the outer box and the outermost side of the placing frame are arranged in the same plane.

The pipe pole is washd the back equipartition and is had low tube conveyer in the rack outside the pipe pole, the face that the low tube conveyer corresponds the car interior installation end is connected with the extension end through vertical adjusting cylinder, the surface distribution of low tube conveyer has four low tube conveying roller, the bottom of low tube conveyer is provided with the unloading motor that provides power for low tube conveying roller.

The pipe pole moving manipulator comprises a bearing plate arranged on the surface, wherein the position of the bearing plate corresponding to the position of a to-be-cleaned pipe placing area is provided with a first inclined groove, the position of the bearing plate corresponding to a pipe pole inner cleaning structure is provided with a second inclined groove, the position of the bearing plate corresponding to a pipe pole outer cleaning rear rack is provided with a third inclined groove, the two sides of the bottom end of the bearing plate are connected with a vehicle inner mounting end through an axle sleeve orientation structure, the middle of the bottom end of the bearing plate is connected with the vehicle inner mounting end through a bearing plate inclined power cylinder, and the bearing plate is connected with the bearing plate inclined power cylinder through a bearing seat.

The inclined groove I, the inclined groove II and the inclined groove III are all arranged to be lower in relative height at one side closer to a pipeline placing area to be cleaned.

The outer cleaning pipe conveying structure comprises a pipe conveying conveyor arranged on the surface of an installation end in the vehicle, a pipe conveying roller is arranged on the surface of the pipe conveying conveyor, and a conveying motor for providing power for the pipe conveying roller is arranged at the bottom end of the pipe conveying conveyor.

The steel wire brush pipe wall machine is characterized in that pressing frames are mounted on two sides of the steel wire brush pipe wall machine, pressing rollers are arranged at positions, corresponding to the pipe conveying machine, of the bottom ends of the pressing frames, and pressing rollers are also arranged at positions, corresponding to the pipe conveying machine, of the bottom ends of the pressing frames.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the invention relates to a mechanical cold cleaning system for pipe rods on site at an oilfield wellhead, which is characterized in that a pipeline to be cleaned is placed at the position of a pipeline placing area to be cleaned, the pipe rods can be moved to a pipe rod moving manipulator when a pipe rod inner cleaning structure moves, the pipe rods are moved to the position of a mounting end in a vehicle corresponding to the pipe rod inner cleaning structure through the pipe rod moving manipulator, the pipe rods are cleaned through the pipe rod inner cleaning structure, the pipe rods are moved to a pipe conveying conveyor through the pipe rod moving manipulator after cleaning, then the pipe rods are passed through the steel wire pipe brushing machine through the pipe conveying conveyor, so that the outer walls of the pipe rods are cleaned, and finally the pipe rods are moved to a pipe outlet area through the pipe conveying machine, so that the cleaning operation of the pipe rods is completed, automatic feeding, station change and automatic blanking are realized, and the inner walls and the outer walls of the pipe rods can be cleaned automatically, the whole-course automation is realized, the labor intensity of workers is effectively reduced, the inner position of the pipe rod can be accurately cleaned through the spray head in reciprocating motion, the pipe wall brushing machine can be used for carrying out all-around cleaning operation on the outer part of the pipe rod, and therefore the cleaning operation is carried out, the cleaning efficiency is effectively improved, and the sewage can be effectively reduced.

Drawings

FIG. 1 is an overall top view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a front view of the vehicle body interior structure of the present invention;

FIG. 4 is a side view of the outer wash pipe stem displacement structure of the present invention;

FIG. 5 is a top view of the outer cleaning pipe bar moving structure of the present invention;

FIG. 6 is a top view of the integral extension end structure of the present invention;

FIG. 7 is a top plan view of the integrated in-vehicle mounting end structure of the present invention;

1. an in-vehicle mounting end; 2. an extension end; 3. a pipeline placement area to be cleaned; 4. cleaning the structure in the pipe rod; 5. cleaning the outside of the pipe rod and placing the pipe rod on a rack; 6. taking out of the pipe area; 7. a pipe rod moving manipulator; 8. cleaning the conveying pipe structure; 9. a steel wire pipe wall brushing machine; 10. a hydraulic telescopic cylinder; 11. an internal height-adjusting rack; 12. an external height-adjusting rack; 13. placing a rack; 14. a roller frame; 15. an outer box; 16. cleaning the motor; 17. cleaning the tube; 18. a displacement trolley; 19. a guide rail; 20. a front spray cover; 21. a zipper; 22. moving the cleaning tube support; 23. a pipe laying conveyor; 24. a lower pipe conveying roller; 25. a blanking motor; 26. a transverse adjusting cylinder; 27. a longitudinal adjusting cylinder; 28. a carrier plate; 29. a first inclined groove; 30. a second inclined groove; 31. a third inclined groove; 32. a shaft sleeve orientation structure; 33. the bearing plate inclines the power cylinder; 34. a bearing seat; 35. a pipe conveyor; 36. a pipe conveying roller; 37. a conveying motor; 38. pressing a frame; 39. the roller is pressed down.

Detailed Description

The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.

The mechanical cold cleaning system for the pipe pole at the oilfield wellhead site comprises an in-vehicle mounting end 1 and an extension end 2, wherein an outer height-adjusting frame 12 is arranged at the bottom end of the in-vehicle mounting end 1, an inner height-adjusting frame 11 is arranged at the bottom end of the extension end 2, the inner height-adjusting frame 11 and the outer height-adjusting frame 12 are connected through a hydraulic telescopic cylinder 10, the extension end 2 extends out through the operation of the hydraulic telescopic cylinder 10, then the inner height-adjusting frame 11 and the outer height-adjusting frame 12 are adjusted, so that the surfaces of the in-vehicle mounting end 1 and the extension end 2 are positioned on the same horizontal plane, a to-be-cleaned pipe placing area 3, a pipe pole outer cleaning placing frame 5 and a pipe outlet area 6 are sequentially arranged on the surface of the extension end 2, the pipe pole outer cleaning placing frame 5 is connected with the to-be-cleaned pipe placing area 3 through a transverse adjusting cylinder 26, and the operation of the transverse adjusting cylinder 26 is controlled, therefore, the position of the rack 5 after the outside of the pipe rod is cleaned can be finely adjusted conveniently, the lower pipe conveying roller 24 in the rack 5 after the outside of the pipe rod is cleaned is opposite to the position of the pipe rod coming out of the inside of the steel wire brush pipe wall machine 9, the pipe rod moving manipulator 7 for moving the pipe rod is arranged in the extension end 2, the pipe rod position on the surface of the mounting end 1 in the vehicle is moved through the pipe rod moving manipulator 7, so that the pipe rod can reach each station, the pipe rod cleaning structure 4 in the pipe rod is arranged on the extension end 2 between the pipe placing area 3 to be cleaned and the rack 5 after the outside of the pipe rod is cleaned, the inner wall of the pipe rod is cleaned through the pipe rod cleaning structure 4, the front spray cover 20 is arranged on the surface of the extension end 2 at one end, close to the mounting end 1 in the vehicle, of the cleaning structure 4 in the pipe rod, the steel wire brush pipe wall machine 9 is arranged at one end, close to the mounting end 1 in the vehicle, of the rack 5 after the outside of the pipe rod is cleaned, the pipe rod penetrates through the inside of the steel wire pipe wall brushing machine 9, so that the outer wall of the pipe rod is cleaned, and the outer cleaning pipe conveying structures 8 are uniformly distributed on the surface of the mounting end 1 in the vehicle corresponding to the position of the steel wire pipe wall brushing machine 9, so that the pipe rod on the surface of the mounting end 1 in the vehicle can be conveniently conveyed to the inside of the steel wire pipe wall brushing machine 9.

Preferably: the cleaning pipeline placing area 3 comprises a placing frame 13 arranged on one side of the extending end 2, and roller frames 14 are distributed in the placing frame 13, so that friction force applied to the pipe rod during moving is reduced, and the surface of the pipe rod is prevented from being scratched.

Preferably: the pipe rod internal cleaning structure 4 comprises a displacement trolley 18 arranged inside an extension end 2, the displacement trolley 18 mainly comprises a servo motor and wheels, a guide rail 19 is arranged inside the extension end 2 and corresponds to the bottom end of the displacement trolley 18, the displacement trolley 18 is driven by the servo motor to move, the wheels move along the guide rail 19, the top end of the displacement trolley 18 is arranged above the surface of the extension end 2, an outer box 15 is arranged behind the top end of the displacement trolley 18, a cleaning motor 16 is arranged inside the outer box 15 and corresponds to the position of a pipe rod moving manipulator 7, an output shaft of the cleaning motor 16 penetrates through the outer part of the outer box 15 and extends to be connected with a cleaning pipe 17, a high-pressure nozzle is arranged at the top end of the cleaning pipe 17, so that water in the cleaning pipe 18 can be sprayed out at high speed, the thoroughness of cleaning of the inner wall of the pipe rod is ensured, and the cleaning motor 16 can drive the cleaning pipe 17 to rotate, therefore, the inside of the pipe rod can be cleaned in a rotating mode, the movable cleaning pipe support 22 is installed on the surface of the guide rail 19 at the position corresponding to the lower portion of the cleaning pipe 17, the cleaning pipe 17 can be prevented from being bent, the displacement trolley 18 and the movable cleaning pipe support 22 are connected through the zipper 21, the movable cleaning pipe support 22 and the side face of the front spraying cover 20 are connected through the zipper 21, and the movable cleaning pipe support 22 can be brought back to the initial position when the displacement trolley 18 returns.

Preferably: the top end of the cleaning pipe 17 is arranged in the front spray cover 20 at the initial position, and the outermost side of the outer box 15 and the outermost side of the placing frame 13 are arranged in the same plane, so that the displacement trolley 18 can push the pipeline placed on the surface of the pipeline placing area 3 to be cleaned to the pipe rod moving manipulator 7 on the surface of the mounting end 1 in the trolley when the outer box 15 is driven to move.

Preferably: the equipartition has low tube conveyer 23 in rack 5 after the outside washing of pipe pole, the face that low tube conveyer 23 corresponds in the car installation end 1 is connected with extension end 2 through vertical adjusting cylinder 27, through the work to vertical adjusting cylinder 27 is controlled, be convenient for from this adjust the distance between vertical adjusting cylinder 27 and the wire brush pipe wall machine 9, the surface distribution of low tube conveyer 23 has four low tube conveying roller 24, four low tube conveying roller 24 are as shown in the installation in figure 7, make four low tube conveying roller 24 can remove the pipe pole to the inside of exit tube district 6 when rotating from this, the bottom of low tube conveyer 23 is provided with the unloading motor 25 that provides power for low tube conveying roller 24.

Preferably: the pipe rod moving manipulator 7 comprises a bearing plate 28 arranged on the surface, a first inclined groove 29 is arranged at the position, corresponding to a pipeline placing area 3 to be cleaned, of the surface of the bearing plate 28, a second inclined groove 30 is arranged at the position, corresponding to a pipe rod inner cleaning structure 4, of the surface of the bearing plate 28, a third inclined groove 31 is arranged at the position, corresponding to a pipe rod outer cleaning placing frame 5, of the surface of the bearing plate 28, two sides of the bottom end of the bearing plate 28 are connected with an in-vehicle mounting end 1 through shaft sleeve orienting structures 32, the middle of the bottom end of the bearing plate 28 is connected with the in-vehicle mounting end 1 through a bearing plate inclined power cylinder 33, the bearing plate 28 is connected with the bearing plate inclined power cylinder 33 through a bearing seat 34, the pipe rod firstly reaches the position of the first inclined groove 29 under the action of a displacement trolley 18, and then the pipe rod sequentially reaches the positions of the second inclined groove 30 and the third inclined groove 31 under the action of the bearing plate inclined power cylinder 33, thereby moving the pipe stick.

Preferably: the first inclined groove 29, the second inclined groove 30 and the third inclined groove 31 are arranged to be lower in relative height as the first inclined groove, the second inclined groove 30 and the third inclined groove 31 are closer to one side of the pipeline placing area 3 to be cleaned, the lowest position of the second inclined groove 30 corresponds to the position of the cleaning pipe 17, and the lowest position of the third inclined groove 31 corresponds to the pipe inlet of the steel wire brushing pipe wall machine 9.

Preferably: the outer cleaning pipe conveying structure 8 comprises a pipe conveying conveyor 35 arranged on the surface of the mounting end 1 in the vehicle, a pipe conveying roller 36 is arranged on the surface of the pipe conveying conveyor 35, a conveying motor 37 for providing power for the pipe conveying roller 36 is arranged at the bottom end of the pipe conveying conveyor 35, the conveying motor 37 works to drive the pipe conveying roller 36 to rotate, and therefore a pipe rod is enabled to pass through the outer cleaning pipe conveying structure 8 in the pipe rod outer cleaning rear rack 5 from the inside of the steel wire brush pipe wall machine 9.

Preferably: the pressing frames 38 are installed on two sides of the wire brush pipe wall machine 9, the pressing rollers 39 are arranged at positions, corresponding to the pipe conveying machine 35, of the bottom ends of the pressing frames 38, the pressing rollers 39 are also arranged at positions, corresponding to the pipe conveying machine 23, of the bottom ends of the pressing frames 38, and therefore the pipe rods can be prevented from warping when entering and discharging the wire brush pipe wall machine 9.

Example 1, a mechanical cold cleaning system for pipe rods at oil field wellhead field, when in use, the pipe rods to be cleaned are placed inside a pipe placing area 3 to be cleaned, then a displacement trolley 18 is made to move, the pipe rods are pushed to a first inclined groove 29 position inside a pipe rod moving manipulator 7 inside a mounting end 1 in a vehicle under the action of an outer box 15, then the displacement trolley 18 is reset, a bearing plate inclined power cylinder 33 is made to work, so that the bearing plate 28 is inclined to move the pipe rods to the inside of a second inclined groove 30, at this time, the displacement trolley 18 is started again, so that cleaning pipes 17 enter the inner walls of the pipe rods, so that the cleaning operation is performed on the inner walls of the pipe rods, then the displacement trolley 18 is reset, at this time, the bearing plate inclined power cylinder 33 is made to work again, so that the bearing plate 28 is inclined again, so that the pipe rods enter a third inclined groove 31 from the second inclined groove 30, at this moment, the pipe conveying machine 35 is made to work, so that the pipe conveying roller 36 is driven to rotate, the pipe rod penetrates through the steel wire brush pipe wall machine 9 and then reaches the position of the pipe rod outer cleaning rear placing frame 5, so that the outer wall of the pipe rod is cleaned, and finally the blanking motor 25 works, so that the pipe lower conveying roller 24 rotates, so that the pipe rod can be moved to the position of the pipe outlet area 6, and a work flow is completed.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.