CN111941247A - Automatic grinding device that crawls of pipe outer wall - Google Patents

Automatic grinding device that crawls of pipe outer wall Download PDF

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Publication number
CN111941247A
CN111941247A CN202010969935.6A CN202010969935A CN111941247A CN 111941247 A CN111941247 A CN 111941247A CN 202010969935 A CN202010969935 A CN 202010969935A CN 111941247 A CN111941247 A CN 111941247A
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CN
China
Prior art keywords
polishing
shell
module
wall
pipeline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010969935.6A
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Chinese (zh)
Inventor
徐锦辉
袁建军
管仁明
董远
施宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou shenzhizhu Technology Service Co.,Ltd.
Original Assignee
Jiaxing Gaowei Intelligent Control Co ltd
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Publication date
Application filed by Jiaxing Gaowei Intelligent Control Co ltd filed Critical Jiaxing Gaowei Intelligent Control Co ltd
Priority to CN202010969935.6A priority Critical patent/CN111941247A/en
Publication of CN111941247A publication Critical patent/CN111941247A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0007—Movable machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00

Abstract

An automatic crawling polishing device for the outer wall of a circular pipe belongs to the technical field of scale removal of blowout pipelines and comprises a shell, a main driving module, a driving base, a polishing module and a crawling module, wherein a pipeline to be polished penetrates through the driving base and the shell along the axis direction; install main drive module on drive base's the outer terminal surface, module and the supporting wheel of crawling, the module of polishing is installed on the inner wall of right side casing and is close to left side casing one side, module drive grinding device that crawls is made linear motion along the outer wall of pipeline, main drive module passes through gear drive casing and drives the module of polishing and make rotary motion along the circumferencial direction of pipeline, the piece of polishing of installation on the transmission ring gear passes through gear drive grinding module radially makes rotary motion along the pipeline. This device application scope is wide, and the dismouting work of polishing of polisher just can be accomplished to one-man operation to be provided with detection device on the outer terminal surface of casing, realize the detection of wall thickness, crackle and the corruption condition when polishing the pipeline, a tractor serves several purposes.

Description

Automatic grinding device that crawls of pipe outer wall
Technical Field
The invention belongs to the technical field of descaling of round pipes, relates to the technical field of descaling of blowout pipelines, and particularly relates to an automatic crawling polishing device for the outer wall of a round pipe.
Background
Blowout lines are a part of well control devices for oil wells where they play a critical role. As the blowout pipeline is subjected to the effects of fluid scouring, electrochemical corrosion, chemical corrosion and the like of fluid media in the pipeline, the blowout pipeline gradually has the defects of pipe wall thinning, corrosion, cracks and the like, and once leakage failure occurs, serious safety accidents are caused. Therefore, nondestructive testing is required to be performed on the return blowout pipeline periodically to ensure the quality and the operation safety of the pipeline.
At present, a commonly used method for detecting a blowout straight pipeline is a magnetic flux leakage detection technology, but before detection, the whole of attachments such as cement, paint, rust and the like of the blowout pipeline needs to be polished so as to ensure the detection correctness. And the open-flow straight pipeline is piled on a material rack after returning to the field, and is firstly polished and then subjected to defect detection by a magnetic flux leakage detection instrument. The polishing space of the blowout straight pipe line is limited, polishing can be carried out only on the material rack, large-scale movement cannot be realized, and only a simple and light polishing mode can be adopted.
At present, the polishing equipment for the excircle of the blowout pipeline is generally polished by a manual handheld polishing machine, for example, a polishing machine with a simple structure is used for manual polishing. A sander generally includes a sanding wheel, a sanding sheet mounted to the sanding wheel, and a motor for driving the sanding sheet in rotation. Under the high-speed rotation of throwing aureola, contact through work piece and the rotatory piece of polishing, with corrosion and paint clean up on the pipeline excircle, this kind of manual sand light mode safety risk of doing is high, and the workman operates and is not very easily leads to hand and throwing aureola contact, causes personnel's injury. The traditional polishing mode is low in efficiency and serious in pollution, the manual polishing workload is large, the labor intensity is high, a large amount of dust and serious noise can be generated in the polishing process, and the health of workers is influenced. Moreover, the sanding quality is poor, and the acting force angle between the hand-held sanding machine and the pipe column of a worker is difficult to grasp, so that the sanding quality is influenced, and the passing performance of the detection equipment is influenced.
In addition, the two ends of the existing open-flow pipeline are connected through flanges, the existing polishing device generally polishes in a pipeline body rotating mode, and although the polishing device can well remove attachments of the pipeline, the pipeline body rotates without protection, and mechanical damage is easily caused. Therefore, the grinding device is only suitable for places where the outer wall of the pipeline does not need to be contacted by people.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an automatic crawling and polishing device for the outer wall of a circular tube.
The design concept of the invention is as follows: the casing is fixed on the pipe wall through the supporting wheel set of equidistance, the module of crawling and sleeve among the grinding device, prevents that grinding device rotatory in-process circumference from beating. The casing is installed main drive module, and main drive gear realizes through gear drive that the casing is rotatory. Four groups of gear sets are arranged in the left shell at equal angles, the gear sets rotate around the pipeline along with the rotation of the shell in the radial direction, and the gear sets drive the self-rotation under the action of a gear ring in the shell. The four polishing modules are installed at equal angles, are driven to rotate by the gear set and revolve along the radial direction of the pipeline along with the rotation of the shell on the left side, and achieve the radial full-coverage polishing of the pipeline. The driving wheel power of the crawling module is driven by the brushless motor to control the axial walking direction and the polishing rhythm of the polishing device in the polishing process, and the shell keeps moving back and forth under the driving of the crawling module.
The invention is realized by the following technical scheme.
The utility model provides an automatic grinding device that crawls of pipe outer wall, it includes casing, main drive module, drive base, the module of polishing and the module of crawling, the casing includes left side casing and right side casing, wherein:
the left side shell and the right side shell are both provided with semi-cylindrical cylinders which are oppositely buckled, the side wall of one side of the left side shell adjacent to the right side shell is fixedly connected, the inner cavities of the left side shell and the right side shell are communicated, the cylindrical surface of the left side shell and the cylindrical surface of the right side shell are provided with rotating pin shaft assemblies, the semi-cylindrical cylinders on the two sides are hinged at the positions of the rotating pin shaft assemblies, the seam-riding positions of the outer end surfaces of the left side shell and the right side shell are provided with locking assemblies, and the semi-cylindrical cylinders on the two;
the supporting wheels, the main driving module and the crawling module are arranged on the outer end face of the driving base along the circumferential direction, the crawling module and the supporting wheels are arranged at equal angles, a motor rotor of the main driving module penetrates through the driving base and extends into an annular cavity between a left side shell and the outer wall of the sleeve, a main driving gear is arranged on the motor rotor of the main driving module, an inner gear ring is arranged on the inner wall of the left side shell, which is close to one side of the driving base, and the inner gear ring is meshed with the main driving gear; a groove is formed in the middle of the left shell, sliding rail guide wheel fixing frames are fixedly installed on the inner walls of the left shell on the two sides of the groove, and a plurality of sliding rail guide wheels are uniformly distributed on the sliding rail guide wheel fixing frames along the circumferential direction; a plurality of transmission gear shafts are uniformly distributed in the groove along the circumferential direction, transmission gears are mounted on the transmission gear shafts, and small bevel gears are mounted at one ends, close to the polishing modules, of the transmission gear shafts;
the driving base is provided with a semi-circular ring disc which is buckled oppositely, the edge of the semi-circular ring disc is hinged at the collinear position of the rotating pin shaft assembly, a locking component is arranged at the joint position of the outer end surface of the driving base and one side opposite to the hinged position, and the semi-circular ring disc is fixedly connected through the locking component; a sleeve is fixedly arranged on the end face of one side, close to the left shell, of the driving base, the sleeve is a semi-cylindrical barrel which is buckled with each other, the sleeve extends into an inner cavity of the left shell, a plurality of guide wheels are uniformly distributed on the inner wall of one side, far away from the driving base, of the sleeve along the circumferential direction, a pipeline to be polished sequentially penetrates through the driving base, the sleeve, the left shell and the right shell along the axial direction, and the guide wheels are in line contact with the outer wall of the pipeline; a transmission gear ring is arranged on the outer wall of one side, close to the left shell, of the sleeve, the transmission gear ring is meshed with the transmission gear, sliding rails are arranged on the sleeves on two sides of the end face of the transmission gear ring respectively, and the sliding rails are matched with the sliding rail guide wheels; the detachable pin shaft detachably penetrates through the driving base from outside to inside and is inserted into a positioning hole formed in the end face of the left shell;
the plurality of grinding modules are arranged on the inner wall of the right shell and close to one side of the left shell, and the plurality of grinding modules are arranged at equal angles along the circumferential direction; the crawling module drives the polishing device to do linear motion along the outer wall of the pipeline, the main driving module drives the polishing module to do rotary motion along the circumferential direction of the pipeline through the gear transmission driving shell, and the transmission gear ring drives the polishing piece mounted on the polishing module to do rotary motion along the radial direction of the pipeline through gear transmission.
Furthermore, the polishing module comprises a sliding shaft, a polishing base, a polishing module bearing, a large bevel gear, a shaft sleeve, an end cover, a polishing pre-tightening spring, a polishing piece mounting block, a polishing piece fixing ring and a polishing piece, wherein the polishing bases are uniformly distributed on the end surface of one side, close to the left side shell, of the right side shell along the circumferential direction;
the polishing piece mounting block and the polishing piece fixing ring are sequentially mounted on a sliding shaft which is arranged on one side, close to the pipeline, of the outside of the polishing base from outside to inside, a polishing pre-tightening spring is mounted on the sliding shaft between the polishing piece mounting block and the end cover, the polishing piece is mounted on the sliding shaft between the polishing piece mounting block and the polishing piece fixing ring, and the outer end face of the polishing piece is in contact with the outer side wall of the pipeline.
Further, the crawling module comprises a driving wheel motor, a motor support piece, a crawling module bearing, a driving wheel, a shaft sleeve, a bearing retainer ring and a driving wheel support seat, the driving wheel support seat is installed on the outer end face of the driving base, the driving wheel motor is horizontally and forwards installed on the driving wheel support seat, the motor support piece is arranged between the driving wheel motor and the side face opposite to the driving wheel support seat, the shaft sleeve is installed on a motor rotor of the driving wheel motor, the driving wheel is installed outside the shaft sleeve and located between the side plates on the two sides of the driving wheel support seat, the outer circular face of the driving wheel is contacted with the outer side wall of the pipeline, the crawling module bearing is arranged at the position where the motor rotor of the driving wheel motor is contacted with the side plates on the two sides of the, the crawling module drives the grinding device to move along the axis direction of the pipeline.
Further, the guide wheels and the supporting wheels are V-shaped wheels.
Furthermore, a dustproof sealing ring is arranged at the contact position of the outer end face of the right side shell and the side wall of the pipeline, and a step for preventing dust is arranged on the side wall of the sliding rail close to the right side shell.
Furthermore, a sensor is installed on the outer end face of the left side shell, an induction pin matched with the sensor is installed on the end face of the inner gear ring close to one side of the driving base, and when the induction pin and the sensor are collinear, the dismounting pin shaft can be inserted into positioning holes formed in the end faces of the driving base and the left side shell from outside to inside, so that the semi-cylindrical base is fixedly connected with the corresponding semi-cylindrical shell.
Further, a handle is arranged on the cylindrical surface of the left side shell and the cylindrical surface of the right side shell, a discharge pipe used for cleaning and removing scale in the right side shell is arranged on the cylindrical surface of the right side shell, and a detection device used for detecting the pipe wall thickness, cracks and corrosion conditions of the pipeline is arranged on the outer end face of the left side shell.
Compared with the prior art, the invention has the beneficial effects that:
1. the grinding device is wide in application range, can enable the grinding device to automatically creep and move along the pipe wall, and avoids mechanical damage caused by rotation of the pipeline. The grinding device is short in structural length and suitable for grinding in places with limited space. The grinding device is designed into a two-semicircle butt joint installation form, is fixedly locked through a lock catch, and is suitable for straight pipe lines with flanges at two ends.
2. This grinding device design is simple, and the field usage simple operation. The upper polishing part and the lower polishing part of the polishing device are opened and closed to form fixed disassembly and assembly points, the upper polishing part and the lower polishing part are integrally in place through the bolt, the lock catch connection mode is convenient to disassemble, and the easily damaged grinding wheel is convenient to disassemble. The whole polishing work such as installation, dismantlement of polisher just can be accomplished to one-man operation, avoids consuming a large amount of manpower resources.
3. The polishing device of the device can realize full radial and axial full-coverage polishing and high polishing efficiency. The polishing module rotates automatically and rotates along the pipeline in the radial direction by 360 degrees along with the rotation of the inner module, and the radial and axial full-coverage polishing is realized. The control system of the polishing device is controlled by the remote control handle, the moving crawling speed can be adjusted according to the actual polishing effect, and the polishing efficiency is improved.
4. The polishing device of the device is full-automatic polishing. Grinding device polishes for the full automatization at the in-process of polishing, avoids the effect of polishing of artificial influence of polishing, has guaranteed check out test set's trafficability characteristic, has improved the rate of accuracy that detects.
5. The device is provided with the detection device on the outer end face of the shell, the detection of the thickness of the pipe wall, the cracks and the corrosion condition is realized while the pipeline is polished, and the device is multipurpose.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective view of the present invention in use;
FIG. 3 is a schematic perspective view of the present invention in an unfolded state;
FIG. 4 is a schematic perspective view of the present invention in a state of being installed on a pipeline;
FIG. 5 is a schematic view of a half-section perspective structure of the present invention;
FIG. 6 is a schematic front view of the structure of FIG. 5;
FIG. 7 is a perspective view of the driving base;
FIG. 8 is a front sectional structural view of the housing;
FIG. 9 is a front cross-sectional structural view of a sanding module;
FIG. 10 is a perspective view of a crawling module;
FIG. 11 is a front cross-sectional view of a three-dimensional structure of a crawling module;
FIG. 12 is a perspective view of the support wheel;
fig. 13 is a perspective view of the guide wheel.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. Unless otherwise specified, the examples follow conventional experimental conditions. In addition, it will be apparent to those skilled in the art that various modifications or improvements can be made to the material components and amounts in these embodiments without departing from the spirit and scope of the invention as defined in the appended claims.
As shown in fig. 1 to 8, the automatic crawling and polishing device for the outer wall of the circular tube comprises a shell 1, a main driving module 2, a driving base 3, a polishing module 4 and a crawling module 5, wherein the shell 1 comprises a left shell 10 and a right shell 11, and the automatic crawling and polishing device comprises:
the left shell 10 and the right shell 11 are both provided with semi-cylindrical cylinders which are buckled oppositely, the adjacent side walls of the left shell 10 and the right shell 11 are fixedly connected, the inner cavities of the left shell 10 and the right shell 11 are communicated, the cylindrical surface of the left shell 10 and the cylindrical surface of the right shell 11 are provided with rotating pin shaft assemblies 12, the semi-cylindrical cylinders at two sides are hinged at the positions of the rotating pin shaft assemblies 12, the seam-riding positions of the outer end surfaces of the left shell 10 and the right shell 11 are provided with locking components 8, and the semi-cylindrical cylinders at two sides are fixedly connected through the locking components 8;
the supporting wheels 7, the main driving module 2 and the crawling module 5 are arranged on the outer end face of the driving base 3 along the circumferential direction, the crawling module 5 and the supporting wheels 7 are arranged at equal angles, a motor rotor of the main driving module 2 penetrates through the driving base 3 and extends into an annular cavity between the left side shell 10 and the outer wall of the sleeve 3-3, the main driving gear 2-1 is arranged on the motor rotor of the main driving module 2, an inner gear ring 10-1 is arranged on the inner wall of the left side shell 10 close to one side of the driving base 3, and the inner gear ring 10-1 is meshed with the main driving gear 2-1; a groove 10-5 is formed in the middle of the left shell 10, a sliding rail guide wheel fixing frame 10-2 is fixedly mounted on the inner wall of the left shell 10 on two sides of the groove 10-5, and a plurality of sliding rail guide wheels 10-3 are uniformly distributed on the sliding rail guide wheel fixing frame 10-2 along the circumferential direction; a plurality of transmission gear shafts 10-6 are uniformly distributed in the groove 10-5 along the circumferential direction, transmission gears 10-4 are installed on the transmission gear shafts 10-6, and small bevel gears 10-7 are installed at one ends, close to the polishing modules 4, of the transmission gear shafts 10-6;
the driving base 3 is arranged into a semi-circular disc which is buckled oppositely, the edge of the semi-circular disc is hinged at a collinear position relative to the rotating pin shaft assembly 12, a lock catch assembly 8 is arranged at a seam riding position on one side of the outer end surface of the driving base 3, which is opposite to the hinged position, and the semi-circular disc is fixedly connected through the lock catch assembly 8; the end face of one side, close to the left shell 10, of the driving base 3 is fixedly provided with a sleeve 3-3, the sleeve 3-3 is arranged into semi-cylindrical barrels which are mutually buckled, the sleeve 3-3 extends into an inner cavity of the left shell 10, a plurality of guide wheels 6 are uniformly distributed on the inner wall of one side, far away from the driving base 3, of the sleeve 3-3 along the circumferential direction, a pipeline 9 to be polished sequentially penetrates through the driving base 3, the sleeve 3-3, the left shell 10 and the right shell 11 along the axial direction, and the guide wheels 6 are in line contact with the outer wall of the pipeline 9; a transmission gear ring 3-2 is installed on the outer wall of one side, close to the left shell 10, of the sleeve 3-3, the transmission gear ring 3-2 is meshed with the transmission gear 10-4, sliding rails 3-4 are respectively arranged on the sleeve 3-3 on two sides of the end face of the transmission gear ring 3-2, and the sliding rails 3-4 are matched with the sliding rail guide wheels 10-3; the detachable pin shaft 3-1 penetrates through the driving base 3 from outside to inside in a detachable manner and is inserted into a positioning hole formed in the end face of the left shell 10;
the plurality of grinding modules 4 are arranged on the inner wall of the right shell 11 and close to one side of the left shell 10, and the plurality of grinding modules 4 are arranged at equal angles along the circumferential direction; the crawling module 5 drives the polishing device to do linear motion along the outer wall of the pipeline 9, the main driving module 2 drives the polishing module 4 to do rotary motion along the circumferential direction of the pipeline 9 through the gear transmission driving shell 1, and the inner gear ring drives the polishing pieces 4-10 installed on the polishing module 4 to do rotary motion along the radial direction of the pipeline 9 through the gear transmission driving.
For convenience of processing and assembling, the shell is composed of two parts, a driving base 3 is the installation side of a main driving module 2, and a main driving gear 2-1 provides rotating force for the shell 1; the slide rail guide wheel 10-3 provides a stable running space for the shell 1, and ensures that the shell 1 does not jump; the right side casing 11 provides airtight polishing space for polishing module 4, ensures that the process of polishing dust does not leak outward.
The four polishing modules 4 are arranged on the inner wall of the right shell 11 at equal angles, the inner gear ring 10-1 drives the left shell 10 and the right shell 11 to rotate under the action of the driving motor, and the sliding rails 3-4 and the sliding rail guide wheels 10-3 arranged on the inner wall of the left shell 10 form a closed running space to ensure that the shell 1 does not move in the rotating process. The four transmission gears 10-4 are arranged in a groove 10-5 in the inner wall of the right shell 11 at equal angles and rotate circumferentially around the pipeline 9 along with the right shell 11, the transmission gear ring 3-2 drives the transmission gear 10-4 to rotate, and the transmission gear 10-4 drives the small bevel gear 10-7 to drive the grinding module 4 to rotate.
The polishing module 4 shown in fig. 9 comprises a sliding shaft 4-1, a polishing base 4-2, a polishing module bearing 4-3, a large bevel gear 4-4, a shaft sleeve 4-5, an end cover 4-6, a polishing pre-tightening spring 4-7, a polishing sheet mounting block 4-8, a polishing sheet fixing ring 4-9 and a polishing sheet 4-10, wherein a plurality of polishing bases 4-2 are uniformly distributed on the end surface of the right side shell 11 close to one side of the left side shell 10 along the circumferential direction, the end cover 4-6 is correspondingly mounted on the end surface of the polishing base 4-2 close to one side of the pipeline 9, the sliding shaft 4-1 penetrates through the polishing base 4-2 along the radial direction of the pipeline 9, two ends of the sliding shaft 4-1 respectively extend to the outer part of the polishing base 4-2, the shaft sleeve 4-5 is mounted on the sliding shaft 4-1 inside the polishing base 4-, a large bevel gear 4-4 is arranged on a shaft sleeve 4-5, the large bevel gear 4-4 is meshed with a small bevel gear 3-6, one end of the shaft sleeve 4-5 is arranged on a polishing base 4-2 through a polishing module bearing 4-3, and the other end of the shaft sleeve 4-5 is arranged on an end cover 4-6 through the polishing module bearing 4-3;
the polishing sheet mounting block 4-8 and the polishing sheet fixing ring 4-9 are sequentially mounted on a sliding shaft 4-1 on one side, close to the pipeline 9, of the outer portion of the polishing base 4-2 from outside to inside, a polishing pre-tightening spring 4-7 is mounted on the sliding shaft 4-1 between the polishing sheet mounting block 4-8 and the end cover 4-6, the polishing sheet 4-10 is mounted on the sliding shaft 4-1 between the polishing sheet mounting block 4-8 and the polishing sheet fixing ring 4-9, and the outer end face of the polishing sheet 4-10 is in contact with the outer side wall of the pipeline 9.
The large bevel gear 4-4 is driven by the small bevel gear 10-7 to drive the shaft sleeve 4-5, the sliding shaft 4-1, the polishing sheet mounting block 4-8, the polishing sheet 4-10 and the polishing sheet fixing ring 4-9 to rotate around the bearing 4-3 of the polishing module. The grinding pre-tightening springs 4-7 ensure that the grinding discs 4-10 are always in close contact with the outer wall of the pipeline 9 in the grinding process.
As shown in fig. 10 and 11, the crawling module 5 includes a driving wheel motor 5-1, a motor support 5-2, crawling module bearings 5-3, 5-7, a driving wheel 5-4, a shaft sleeve 5-5, a bearing retainer 5-6 and a driving wheel support 5-8, the driving wheel support 5-8 is mounted on the outer end face of the driving base 3, the driving wheel motor 5-1 is horizontally and forwardly mounted on the driving wheel support 5-8, the motor support 5-2 is disposed between the driving wheel motor 5-1 and the side face opposite to the driving wheel support 5-8, the shaft sleeve 5-5 is mounted on the motor rotor of the driving wheel motor 5-1, the driving wheel 5-4 is mounted on the outer portion of the shaft sleeve 5-5 and is located between the side plates on both sides of the driving wheel support 5-8, the outer circular surface of the driving wheel 5-4 is contacted with the outer side wall of the pipeline 9, crawling module bearings 5-3 and 5-7 are arranged at the contact positions of a motor rotor of the driving wheel motor 5-1 and side plates on two sides of the driving wheel supporting seat 5-8, bearing retainer rings 5-6 are arranged on shaft sleeves 5-5 at the end positions of the inner side ends of the crawling module bearings 5-3 and 5-7, the driving wheel motor 5-1 drives the driving wheel 5-4 to rotate, and the crawling module 5 drives the grinding device to move along the axial direction of the pipeline 9.
As shown in fig. 12 and 13, the guide wheels 6 and the support wheels 7 are V-shaped wheels, which prevent the grinding device from rotating when running along the axial direction of the pipeline.
Furthermore, a dustproof sealing ring is arranged at the contact position of the outer end face of the right side shell 11 and the side wall of the pipeline 9, and a step for dust prevention is arranged on the side wall of the sliding rail 3-4 close to the right side shell 11.
Furthermore, a sensor is mounted on the outer end face of the left side shell 10, an induction pin matched with the sensor is mounted on the end face of the inner gear ring 10-1 close to one side of the driving base 3, and when the induction pin and the sensor are collinear, the dismounting pin shaft 3-1 can be inserted into positioning holes formed in the end faces of the driving base 3 and the left side shell 10 from outside to inside, so that the semi-cylindrical base is fixedly connected with the corresponding semi-cylindrical shell.
Further, a handle is arranged across the cylindrical surface of the left shell 10 and the cylindrical surface of the right shell 11, a discharging pipe for cleaning and descaling the right shell 11 is arranged on the cylindrical surface of the right shell 11, and a detection device 13 for detecting the pipe wall thickness, cracks and corrosion conditions of the pipeline 9 is arranged on the outer end surface of the left shell 10.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1. The utility model provides an automatic grinding device that crawls of pipe outer wall, it includes casing (1), main drive module (2), drive base (3), module (4) of polishing and module (5) of crawling, casing (1) includes left side casing (10) and right side casing (11), its characterized in that:
the left side shell (10) and the right side shell (11) are both provided with semi-cylindrical cylinders which are buckled relatively, the adjacent side wall of the left side shell (10) and the right side shell (11) is fixedly connected, the inner cavities of the left side shell (10) and the right side shell (11) are communicated, the cylindrical surface of the left side shell (10) and the cylindrical surface of the right side shell (11) are provided with a rotating pin shaft assembly (12), the semi-cylindrical cylinders on two sides are hinged to the rotating pin shaft assembly (12), the seam-riding positions of the outer end surfaces of the left side shell (10) and the right side shell (11) are provided with a locking assembly (8), and the semi-cylindrical cylinders on two sides are fixedly connected through the locking assembly (8;
the supporting wheels (7), the main driving module (2) and the crawling module (5) are arranged on the outer end face of the driving base (3) along the circumferential direction, the crawling module (5) and the supporting wheels (7) are arranged at equal angles, a motor rotor of the main driving module (2) penetrates through the driving base (3) and extends into an annular cavity between a left side shell (10) and the outer wall of the sleeve (3-3), the motor rotor of the main driving module (2) is provided with a main driving gear (2-1), an inner gear ring (10-1) is arranged on the inner wall of one side, close to the driving base (3), of the left side shell (10), and the inner gear ring (10-1) is meshed with the main driving gear (2-1); a groove (10-5) is formed in the middle of the left shell (10), a sliding rail guide wheel fixing frame (10-2) is fixedly installed on the inner wall of the left shell (10) on two sides of the groove (10-5), and a plurality of sliding rail guide wheels (10-3) are uniformly distributed on the sliding rail guide wheel fixing frame (10-2) along the circumferential direction; a plurality of transmission gear shafts (10-6) are uniformly distributed in the groove (10-5) along the circumferential direction, transmission gears (10-4) are installed on the transmission gear shafts (10-6), and small bevel gears (10-7) are installed at one ends, close to the polishing modules (4), of the transmission gear shafts (10-6);
the driving base (3) is arranged to be a semicircular ring disc which is buckled oppositely, the edge of the semicircular ring disc is hinged at the collinear position of the rotating pin shaft assembly (12), a lock catch assembly (8) is installed at the joint position of the outer end face of the driving base (3) and one side opposite to the hinged position, and the semicircular ring disc is fixedly connected through the lock catch assembly (8); the end face of one side, close to the left shell (10), of the driving base (3) is fixedly provided with a sleeve (3-3), the sleeve (3-3) is arranged into semi-cylindrical barrels which are buckled with each other, the sleeve (3-3) extends into an inner cavity of the left shell (10), a plurality of guide wheels (6) are uniformly distributed on the inner wall of one side, far away from the driving base (3), of the sleeve (3-3) along the circumferential direction, a pipeline (9) to be polished sequentially penetrates through the driving base (3), the sleeve (3-3), the left shell (10) and the right shell (11) along the axial direction, and the guide wheels (6) are in line contact with the outer wall of the pipeline (9); a transmission gear ring (3-2) is installed on the outer wall of one side, close to the left shell (10), of the sleeve (3-3), the transmission gear ring (3-2) is meshed with the transmission gear (10-4), sliding rails (3-4) are respectively arranged on the sleeve (3-3) on two sides of the end face of the transmission gear ring (3-2), and the sliding rails (3-4) are matched with the sliding rail guide wheels (10-3); the detachable pin shaft (3-1) detachably penetrates through the driving base (3) from outside to inside and is inserted into a positioning hole formed in the end face of the left shell (10);
the plurality of grinding modules (4) are arranged on the inner wall of the right side shell (11) and close to one side of the left side shell (10), and the plurality of grinding modules (4) are arranged at equal angles along the circumferential direction; the crawling module (5) drives the grinding device to do linear motion along the outer wall of the pipeline (9), the main driving module (2) drives the grinding module (4) to do rotary motion along the circumferential direction of the pipeline (9) through the gear transmission driving shell (1), and the transmission gear ring (3-2) drives the grinding sheets (4-10) mounted on the grinding module (4) to do rotary motion along the radial direction of the pipeline (9) through gear transmission.
2. The automatic crawling and grinding device for the outer wall of the round pipe as claimed in claim 1, wherein: the polishing module (4) comprises a sliding shaft (4-1), a polishing base (4-2), a polishing module bearing (4-3), a large bevel gear (4-4), a shaft sleeve (4-5), an end cover (4-6), a polishing pre-tightening spring (4-7), a polishing sheet mounting block (4-8), a polishing sheet fixing ring (4-9) and a polishing sheet (4-10), wherein the polishing bases (4-2) are uniformly distributed on the end surface of one side, close to the left side shell (10), of the right side shell (11) along the circumferential direction, the end cover (4-6) is correspondingly mounted on the end surface of one side, close to the pipeline (9), of the polishing base (4-2), the sliding shaft (4-1) penetrates through the polishing base (4-2) along the radial direction of the pipeline (9), and two ends of the sliding shaft (4-1) respectively extend to the outer part of the polishing base (4-2), a sliding shaft (4-1) in the polishing base (4-2) is provided with a shaft sleeve (4-5), a large bevel gear (4-4) is arranged on the shaft sleeve (4-5), the large bevel gear (4-4) is meshed with a small bevel gear (10-7), one end of the shaft sleeve (4-5) is arranged on the polishing base (4-2) through a polishing module bearing (4-3), and the other end of the shaft sleeve (4-5) is arranged on an end cover (4-6) through the polishing module bearing (4-3);
the polishing sheet mounting block (4-8) and the polishing sheet fixing ring (4-9) are sequentially mounted on a sliding shaft (4-1) on one side, close to the pipeline (9), of the outer portion of the polishing base (4-2) from outside to inside, a polishing pre-tightening spring (4-7) is mounted on the sliding shaft (4-1) between the polishing sheet mounting block (4-8) and the end cover (4-6), the polishing sheet (4-10) is mounted on the sliding shaft (4-1) between the polishing sheet mounting block (4-8) and the polishing sheet fixing ring (4-9), and the outer end face of the polishing sheet (4-10) is in contact with the outer side wall of the pipeline (9).
3. The automatic crawling and grinding device for the outer wall of the round pipe as claimed in claim 1, wherein: the crawling module (5) comprises a driving wheel motor (5-1), a motor support piece (5-2), crawling module bearings (5-3 and 5-7), a driving wheel (5-4), a shaft sleeve (5-5), a bearing retainer ring (5-6) and a driving wheel support seat (5-8), wherein the driving wheel support seat (5-8) is installed on the outer end face of the driving base (3), the driving wheel motor (5-1) is horizontally and forwards installed on the driving wheel support seat (5-8), the motor support piece (5-2) is arranged between the driving wheel motor (5-1) and the side face opposite to the driving wheel support seat (5-8), the shaft sleeve (5-5) is installed on a motor rotor of the driving wheel motor (5-1), and the driving wheel (5-4) is installed outside the shaft sleeve (5-5) and located on the driving wheel support seat (5-8) Between the two side plates, the outer circle surface of the driving wheel (5-4) is contacted with the outer side wall of the pipeline (9), crawling module bearings (5-3, 5-7) are arranged at the contact positions of a motor rotor of the driving wheel motor (5-1) and the two side plates of the driving wheel supporting seat (5-8), bearing retainer rings (5-6) are arranged on shaft sleeves (5-5) at the end surfaces of the inner sides of the crawling module bearings (5-3, 5-7), the driving wheel motor (5-1) drives the driving wheel (5-4) to rotate, and the crawling module (5) drives the grinding device to move along the axis direction of the pipeline (9).
4. The automatic crawling and grinding device for the outer wall of the round pipe as claimed in claim 1, wherein: the guide wheel (6) and the supporting wheel (7) are both V-shaped wheels.
5. The automatic crawling and grinding device for the outer wall of the round pipe as claimed in claim 1, wherein: and a dustproof sealing ring is arranged at the contact position of the outer end face of the right side shell (11) and the side wall of the pipeline (9), and a step for dust prevention is arranged on the side wall of the sliding rail (3-4) close to the right side shell (11).
6. The automatic crawling and grinding device for the outer wall of the round pipe as claimed in claim 2, wherein: the outer end face of the left side shell (10) is provided with a sensor, the end face of the inner gear ring (10-1) close to one side of the driving base (3) is provided with a sensing pin matched with the sensor, and when the sensing pin and the sensor are collinear, the dismounting pin shaft (3-1) can be inserted into positioning holes formed in the end faces of the driving base (3) and the left side shell (10) from outside to inside, so that the semi-cylindrical base is fixedly connected with the corresponding semi-cylindrical shell.
7. The automatic crawling and grinding device for the outer wall of the round pipe as claimed in claim 1, wherein: a handle is arranged on the cylindrical surface crossing the left shell (10) and the cylindrical surface of the right shell (11), a discharge pipe used for cleaning scale in the right shell (11) is arranged on the cylindrical surface of the right shell (11), and a detection device (13) used for detecting the pipe wall thickness, cracks and corrosion conditions of the pipeline (9) is arranged on the outer end surface of the left shell (10).
CN202010969935.6A 2020-09-15 2020-09-15 Automatic grinding device that crawls of pipe outer wall Pending CN111941247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010969935.6A CN111941247A (en) 2020-09-15 2020-09-15 Automatic grinding device that crawls of pipe outer wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010969935.6A CN111941247A (en) 2020-09-15 2020-09-15 Automatic grinding device that crawls of pipe outer wall

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CN111941247A true CN111941247A (en) 2020-11-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113858005A (en) * 2021-09-03 2021-12-31 燕山大学 Self-propelled automatic paint removing and polishing device for oil pipelines and polishing method thereof
CN114904854A (en) * 2022-05-11 2022-08-16 马世成 Portable nondestructive testing device for pressure pipeline
CN115256172A (en) * 2022-09-30 2022-11-01 中铁山桥集团有限公司 Polisher for positioning welding and derusting of partition plate structure
CN116749043A (en) * 2023-04-14 2023-09-15 宁夏建设职业技术学院 Material equipment of polishing for construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113858005A (en) * 2021-09-03 2021-12-31 燕山大学 Self-propelled automatic paint removing and polishing device for oil pipelines and polishing method thereof
CN114904854A (en) * 2022-05-11 2022-08-16 马世成 Portable nondestructive testing device for pressure pipeline
CN115256172A (en) * 2022-09-30 2022-11-01 中铁山桥集团有限公司 Polisher for positioning welding and derusting of partition plate structure
CN116749043A (en) * 2023-04-14 2023-09-15 宁夏建设职业技术学院 Material equipment of polishing for construction

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