CN110640570A - Pipeline inner wall reducing polishing method - Google Patents
Pipeline inner wall reducing polishing method Download PDFInfo
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- CN110640570A CN110640570A CN201910952036.2A CN201910952036A CN110640570A CN 110640570 A CN110640570 A CN 110640570A CN 201910952036 A CN201910952036 A CN 201910952036A CN 110640570 A CN110640570 A CN 110640570A
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- Prior art keywords
- grinding
- reducing
- pipeline
- polishing
- supporting
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- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- 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
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- 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
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- 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
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- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a pipeline inner wall reducing grinding device which comprises a reducing grinding mechanism, a revolution driving part, a front displacement supporting mechanism and a front grinding supporting mechanism which are arranged at one end of the reducing grinding mechanism, and a rear displacement supporting mechanism and a rear grinding supporting mechanism which are arranged at the other end of the reducing grinding mechanism, wherein the reducing grinding mechanism is used for grinding the inner wall of a pipeline; the variable-diameter grinding mechanism is supported by the front grinding support mechanism and the rear grinding support mechanism, the variable-diameter grinding mechanism adjusts the moving radius according to pipelines with different pipe diameters, rotates under the drive of the revolution driving part, and grinds weld beading, welding slag and rusty spots on the inner wall of the pipeline to form a smooth surface, and the front displacement support mechanism and the rear displacement support mechanism alternately provide axial displacement to finish the grinding of the inner wall of the whole pipeline.
Description
Technical Field
The invention relates to the technical field of polishing equipment, in particular to a pipeline inner wall reducing polishing method.
Background
The welding back of current pipeline, pipeline inner wall can produce when welding defects such as weld bead, welding slag and rusty spot, and these defects if directly come into use and can seriously influence the quality of carrying the product through the processing of polishing, and the while coarse surface also can accelerate the corruption of pipeline, shortens pipe-line system's life, consequently, needs to provide one kind and can carry out the equipment of polishing to pipeline's inner wall.
Disclosure of Invention
The invention aims to overcome the defects and provide a method for grinding the inner wall of the pipeline with the variable diameter.
In order to achieve the purpose, the invention adopts the following specific scheme:
the utility model provides a pipeline inner wall reducing grinding device, includes reducing grinding machanism, locates preceding displacement supporting mechanism and the preceding supporting mechanism of polishing of reducing grinding machanism one end, locates back displacement supporting mechanism and the back supporting mechanism of polishing of the reducing grinding machanism other end and revolution drive disk assembly, reducing grinding machanism is used for polishing the pipeline inner wall, preceding displacement supporting mechanism and back displacement supporting mechanism provide axial displacement for reducing grinding machanism in turn, preceding grinding supporting mechanism and back grinding supporting mechanism are used for providing radial holding power for reducing grinding machanism, revolution drive disk assembly is used for driving the reducing grinding machanism rotation.
Wherein, the reducing grinding mechanism comprises a reducing screw, a guiding mandrel, a reducing driving part, a grinding driving part, a plurality of grinding components and a lifting component matched with the grinding components, the reducing screw is arranged in the guiding mandrel, the screw thread turning directions at the two ends of the reducing screw are opposite, dovetail grooves are arranged at intervals along the direction parallel to the axial direction on the guiding mandrel, the reducing driving part is fixed at one end of the guiding mandrel and is in transmission connection with one end of the reducing screw, the other end of the reducing screw is rotatably connected at the other end of the guiding mandrel, the two ends of the reducing screw are respectively connected with a sliding nut, each grinding component is in sliding connection with the guiding mandrel through a lifting component, the two ends of the lifting component are respectively embedded in the dovetail grooves and are fixedly connected with the sliding nuts, the grinding driving part is fixed at the other end of the guiding, the grinding driving component is used for driving the grinding assembly to carry out grinding work on the inner wall of the pipeline.
The grinding assembly comprises an abrasive material retainer, a rough grinding wheel and an accurate grinding wheel, the rough grinding wheel and the accurate grinding wheel are symmetrically arranged on the abrasive material retainer, the abrasive material retainer is fixed on the lifting assembly, and the rough grinding wheel and the accurate grinding wheel are in transmission connection with the grinding driving component.
The lifting assembly comprises a lifting block and lifting arms respectively hinged to two ends of the lifting block, the other ends of the lifting arms are hinged to a sliding block through a hinge seat, the sliding block is embedded in a dovetail groove, and the other ends of the sliding blocks are fixed to sliding nuts.
Wherein, the driver part of polishing is including the driving motor, motor mount, fixed disk, first ring gear and a plurality of drive component of polishing, the driving motor of polishing is fixed on the motor mount, the other end at the direction dabber is installed to the motor mount, first ring gear is fixed on the fixed disk, the fixed disk is located in the motor mount and is connected with the driving motor's of polishing output, the one end of drive component is passed through the gear and is connected with first ring gear transmission, the other end and the corase grind emery wheel of drive component and finish grinding wheel transmission are connected.
The transmission component comprises a spline shaft, a gearbox body, a first-stage bevel gear set and a second-stage bevel gear set, wherein two ends of the spline shaft are respectively connected with a guide mandrel through a supporting block, one end of the spline shaft is in transmission connection with a first gear ring, the gearbox body is fixed on an articulated seat, the first-stage bevel gear set is arranged on the gearbox body and is in transmission connection with the spline shaft, the first-stage bevel gear set is also in transmission connection with a first belt wheel, and the second-stage bevel gear set is arranged on an abrasive material holder and is in transmission connection with a coarse grinding wheel and a fine grinding wheel; the lifting device is characterized by further comprising a second belt wheel and a third belt wheel, wherein the second belt wheel is rotatably connected to the lifting block, the third belt wheel is in transmission connection with the second-stage bevel gear set through a transmission shaft, and the second belt wheel is connected with the first belt wheel and the second belt wheel through transmission belts respectively.
Wherein, preceding supporting mechanism of polishing includes a first supporting cylinder and a plurality of first supporting component, the one end of a first supporting cylinder is connected on reducing polishing mechanism, and is a plurality of first supporting component sets up along the outer wall interval of a first supporting cylinder, first supporting component includes first cylinder and first supporting arm, first cylinder articulates the one end at a first supporting cylinder, the output and the first supporting arm middle part of first cylinder are articulated, the one end of a first supporting arm articulates the other end at a first supporting cylinder, the other end coupling of a first supporting arm has the supporting wheel.
The front displacement supporting mechanism comprises a second supporting cylinder, a front displacement cylinder and a plurality of second supporting assemblies, the front displacement cylinder is fixed at the other end of the first supporting cylinder, the front displacement cylinder stretches into the second supporting cylinder, the output end of the front displacement cylinder is fixedly connected with the second supporting cylinder, the first supporting cylinder is far away from the second supporting cylinder, the front displacement cylinder is arranged at the outer wall of the second supporting cylinder in a spaced mode, the second supporting assemblies comprise second cylinders and second supporting arms, the second cylinders are hinged to one ends of the second supporting cylinders, the output ends of the second cylinders are hinged to the middle of the second supporting arms, one ends of the second supporting arms are hinged to the other ends of the second supporting cylinders, and the other ends of the second supporting arms are connected with clamping claws in a shaft mode.
The rear polishing supporting mechanism comprises a third supporting cylinder and a plurality of third supporting assemblies, one end of the third supporting cylinder is connected to the reducing polishing mechanism and is arranged at intervals along the outer wall of the third supporting cylinder, each third supporting assembly comprises a third cylinder and a third supporting arm, the third cylinders are hinged to one ends of the third supporting cylinders, the output ends of the third cylinders are hinged to the middle of the third supporting arms, one ends of the third supporting arms are hinged to the other ends of the third supporting cylinders, and the other ends of the third supporting arms are connected with supporting wheels in a shaft mode.
Wherein, preceding displacement supporting mechanism includes a fourth support section of thick bamboo, back displacement cylinder and a plurality of fourth supporting component, the other end at a third support section of thick bamboo is fixed to back displacement cylinder, back displacement cylinder stretches into in the fourth support section of thick bamboo and its output and a fourth support section of thick bamboo keep away from the one end fixed connection of a third support section of thick bamboo, and is a plurality of fourth supporting component sets up along the outer wall interval of a fourth support section of thick bamboo, fourth supporting component includes fourth cylinder and fourth support arm, the fourth cylinder articulates the one end at a fourth support section of thick bamboo, the output and the fourth support arm middle part of fourth cylinder are articulated, the one end of fourth support arm articulates the other end at a fourth support section of thick bamboo, the other end coupling of fourth support arm has the chucking claw.
The invention has the beneficial effects that: the reducing grinding mechanism is supported by the front grinding supporting mechanism and the rear grinding supporting mechanism together, good supporting rigidity is provided for the reducing grinding mechanism, conditions are created for carrying out a large amount of grinding work, then the reducing grinding mechanism adjusts the movable radius according to pipelines with different pipe diameters, the reducing grinding mechanism rotates under the driving of the revolution driving part, welding beading on the inner wall of the pipeline, welding slag and rusty spots are ground, a smooth and clean surface is formed, the application range is wider, the front displacement supporting mechanism and the rear displacement supporting mechanism alternately provide axial displacement for the reducing grinding mechanism, the reducing grinding mechanism is driven to complete grinding of the inner wall of the whole pipeline, the reducing grinding mechanism can run uninterruptedly, the grinding efficiency is improved, and the reducing grinding mechanism can be suitable for grinding of long pipelines.
Drawings
Fig. 1 is a perspective view of a polishing apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first view angle of a variable diameter grinding mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second perspective of a variable diameter grinding mechanism according to an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view taken in the direction A-A of FIG. 3;
FIG. 5 is a schematic diagram of a partial structure of a variable diameter grinding mechanism according to an embodiment of the present invention;
FIG. 6 is an enlarged partial schematic view at I of FIG. 1;
FIG. 7 is an enlarged partial schematic view at II of FIG. 1;
FIG. 8 is an enlarged partial schematic view at III of FIG. 1;
FIG. 9 is an enlarged partial schematic view taken at IV in FIG. 1;
FIG. 10 is a schematic structural diagram of a lift assembly provided in accordance with an embodiment of the present invention;
FIG. 11 is a schematic structural view of a guiding mandrel provided in an embodiment of the present invention;
description of reference numerals: 1-a variable diameter polishing mechanism; 11-a variable diameter screw; 12-a guiding mandrel; 13-a variable diameter driving part; 14-grinding the driving part; 141-grinding a driving motor; 142-a motor mount; 143-fixed disk; 144-a first ring gear; 145-a transmission member; 1451-spline shaft; 1452-a gearbox body; 1453-first stage bevel gear set; 1454-second stage bevel gear set; 1455-a first pulley; 1456-a second pulley; 1457-a third pulley; 15-grinding the assembly; 151-abrasive holders; 152-rough grinding of the grinding wheel; 153-fine grinding wheel; 16-a lifting assembly; 161-lifting block; 162-a lifting arm; 163-hinge mount; 164-a slider;
2-a forward displacement support mechanism; 21-a second support cylinder; 22-a front displacement cylinder; 23-a second support assembly; 231-a second cylinder; 232-a second support arm;
3-front polishing the supporting mechanism; 31-a first support cylinder; 32-a first support assembly; 321-a first cylinder; 322-a first support arm;
4-rear displacement support mechanism; 41-a fourth support cylinder; 42-rear displacement cylinder; 43-a fourth support assembly; 431-a fourth cylinder; 432-a fourth support arm;
5-polishing the supporting mechanism; 51-a third support cylinder; 52-a third support assembly; 521-a third cylinder; 522-a third support arm;
6-a revolution driving member; 61-a revolution driving motor; 62-second ring gear.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.
As shown in fig. 1 to 11, a pipeline inner wall reducing grinding device described in this embodiment, including reducing grinding machanism 1, locate preceding displacement supporting mechanism 2 and the preceding supporting mechanism 3 of polishing of 1 one end of reducing grinding machanism, locate back displacement supporting mechanism 4 and the back supporting mechanism 5 of polishing of 1 other end of reducing grinding machanism and revolution drive disk assembly 6, reducing grinding machanism 1 is used for polishing the pipeline inner wall, preceding displacement supporting mechanism 2 and back displacement supporting mechanism 4 provide axial displacement for reducing grinding machanism 1 in turn, preceding grinding supporting mechanism 3 and back supporting mechanism 5 of polishing are used for providing radial holding power for reducing grinding machanism 1, revolution drive disk assembly 6 is used for driving reducing grinding machanism 1 rotatory to the pipeline inner wall of polishing.
The working mode of the embodiment is as follows: during operation, put into the pipeline of treating polishing with grinding device, then preceding supporting mechanism 3 and the supporting mechanism 5 simultaneous working of polishing after with, support reducing grinding mechanism 1 in the pipeline, guarantee good support rigidity, create the condition for the work of polishing in a large number of needs, then reducing grinding mechanism 1 work, according to the pipeline internal diameter of difference, the adjustment radius of action, revolution drive unit 6 drives reducing grinding mechanism 1 and rotates simultaneously, thereby realize polishing the pipeline inner wall, polish defects such as the weld beading on the pipeline inner wall, welding slag and pipeline internal surface rust spot, make the pipeline inner wall more smooth, and preceding displacement supporting mechanism 2 and back displacement supporting mechanism 4 drive reducing grinding mechanism 1 along pipeline axial displacement in turn, and then polish whole pipeline inner wall.
This embodiment is through preceding supporting mechanism 3 and the supporting mechanism 5 of polishing after of polishing jointly support reducing grinding machanism 1, for reducing grinding machanism 1 provides good support rigidity, create the condition for carrying out a large amount of grinding work, reducing grinding machanism 1 is according to the pipeline adjustment activity radius of different pipe diameters, it is rotatory under the drive of revolution drive part 6, the weld beading on the pipeline inner wall, welding slag and rusty spot are polished, form bright and clean surface, application scope is wider, and preceding displacement supporting mechanism 2 and back displacement supporting mechanism 4 provide axial displacement for reducing grinding machanism 1 in turn, drive reducing grinding machanism 1 accomplishes polishing of whole pipeline inner wall, make reducing grinding machanism 1 can the uninterrupted operation, the efficiency of polishing is improved, can be suitable for the polishing of long pipeline.
In this embodiment, as shown in fig. 2 to 5, 10 and 11, the reducing polishing mechanism 1 includes a reducing screw 11, a guiding mandrel 12, a reducing driving part 13, a polishing driving part 14, a plurality of polishing assemblies 15, and a lifting assembly 16 cooperating with the polishing assembly 15, the reducing screw 11 is disposed in the guiding mandrel 12, the thread directions of both ends of the reducing screw 11 are opposite, dovetail grooves are disposed at intervals along the guiding mandrel 12 in a direction parallel to the axial direction, the reducing driving part 13 is fixed at one end of the guiding mandrel 12 and is in transmission connection with one end of the reducing screw 11, the other end of the reducing screw 11 is rotatably connected to the other end of the guiding mandrel 12, both ends of the reducing screw 11 are respectively connected to sliding nuts, each polishing assembly 15 is slidably connected to the guiding mandrel 12 through one lifting assembly 16, both ends of the lifting assembly 16 are respectively embedded in the dovetail grooves and are fixedly connected to the sliding nuts, the grinding driving part 14 is fixed at the other end of the guide mandrel 12, and the grinding driving part 14 is used for driving the grinding assembly 15 to grind the inner wall of the pipeline; preferably, the number of the polishing assemblies 15 is three, correspondingly, the number of the lifting assemblies 16 is also three, the reducing driving part 13 comprises a reducing driving motor, the reducing driving motor is connected with the guide mandrel 12 through a mounting bracket, and the output end of the reducing driving motor is connected with the reducing screw rod 11 through a coupling; during operation, reducing drive motor drives reducing screw 11 rotatory, because the screw thread at reducing screw 11 both ends revolves to setting up on the contrary, consequently, reducing screw 11 is rotatory to make two slip nuts remove in opposite directions, two slip nuts drive the one end of lifting unit 16 and remove along direction dabber 12, make lifting unit 16 drive polishing unit 15 outwards stretch out, until polishing unit 15 contacts the pipeline inner wall, realize adjusting polishing unit 15's movable radius, then the work of the drive unit that polishes, drive polishing unit 15 works, simultaneously under the drive of revolution drive unit 6, direction dabber 12 is rotatory, direction dabber 12 drives three sets of polishing unit 15 rotatoryly, and then polish pipeline inner wall.
In this embodiment, as shown in fig. 4 and 5, the polishing assembly 15 includes an abrasive holder 151, and a rough grinding wheel 152 and a finish grinding wheel 153 symmetrically installed on the abrasive holder 151, the abrasive holder 151 is fixed on the lifting assembly 16, the rough grinding wheel 152 and the finish grinding wheel 153 are both in transmission connection with the polishing driving component 14, the lifting assembly 16 drives the abrasive holder 151 to extend outward, so that the rough grinding wheel 152 and the finish grinding wheel 153 contact the inner wall of the pipeline, and then the polishing driving component 14 drives the rough grinding wheel 152 and the finish grinding wheel 153 to rotate, so as to polish the inner wall of the pipeline. In this embodiment, the lifting assembly 16 includes a lifting block 161 and lifting arms 162 respectively hinged to two ends of the lifting block 161, the other end of the lifting arm 162 is hinged to a sliding block 164 through a hinge seat 163, the sliding block 164 is embedded in a dovetail groove, and the other end of the sliding block 164 is fixed to a sliding nut; sliding block 164 moves along the dovetail under sliding nut's drive, and two lift arms 162 prop up lifting block 161, and then drive abrasive material holder 151 and stretch out, realize the process of reducing, can be directed against the pipeline of different pipe diameters, application scope is wider, and the combination of coarse grinding emery wheel 152 and finish grinding emery wheel 153 is integrative simultaneously, and the effect of polishing is better.
In this embodiment, as shown in fig. 2 to 5, the grinding driving part 14 includes a grinding driving motor 141, a motor fixing frame 142, a fixed disc 143, a first gear ring 144, and a plurality of transmission members 145, the grinding driving motor 141 is fixed on the motor fixing frame 142, the motor fixing frame 142 is installed at the other end of the guide mandrel 12, the first gear ring 144 is fixed on the fixed disc 143, the fixed disc 143 is disposed in the motor fixing frame 142 and connected to an output end of the grinding driving motor 141, one end of the transmission member 145 is in transmission connection with the first gear ring 144 through a gear, and the other end of the transmission member 145 is in transmission connection with a rough grinding wheel 152 and a finish grinding wheel 153; correspondingly, the number of the transmission members 145 is three, when the grinding machine works, the grinding driving motor 141 drives the fixed disc 143 to rotate, the fixed disc 143 drives the first gear ring 144 to rotate, the first gear ring 144 drives the transmission member 145 to rotate through a gear, one-stage speed change is realized, and then the transmission member 145 drives the rough grinding wheel 152 and the fine grinding wheel 153 to rotate.
As shown in fig. 5, in the present embodiment, the transmission member 145 includes a spline shaft 1451, a transmission case 1452, a first stage bevel gear set 1453, and a second stage bevel gear set 1454, both ends of the spline shaft 1451 are respectively connected to the guide spindles 12 through a support block, one end of the spline shaft 1451 is in transmission connection with the first ring gear 144, the transmission case 1452 is fixed to the hinge base 163, the first stage bevel gear set 1453 is provided on the transmission case 1452 and is in transmission connection with the spline shaft 1451, the first stage bevel gear set 1453 is further in transmission connection with a first pulley 1455, and the second stage bevel gear set 1454 is provided on the abrasive holder 151 and is in transmission connection with the rough grinding wheel 152 and the finish grinding wheel 153; the device further comprises a second belt wheel 1456 and a third belt wheel 1457, wherein the second belt wheel 1456 is rotatably connected to the lifting block 161, the third belt wheel 1457 is in transmission connection with a second-stage bevel gear set 1454 through a transmission shaft, and the second belt wheel 1456 is respectively connected with the first belt wheel 1455 and the second belt wheel 1456 through transmission belts; when the device works, the first gear ring 144 drives the spline shaft 1451 to rotate through a gear to realize first-stage speed change, the spline shaft 1451 drives the first-stage bevel gear set 1453 to rotate, the first-stage bevel gear set 1453 drives the first belt wheel 1455 to realize second-stage speed change, the first belt wheel 1455 drives the second belt wheel 1456 and the third belt wheel 1457 to rotate, and the third belt wheel 1457 drives the second-stage bevel gear set 1454 to rotate, so that the coarse grinding wheel 152 and the fine grinding wheel 153 rotate, and further three-stage speed change is realized; specifically, the first-stage bevel gear set 1453 includes a large bevel gear fitted to the transmission case 1452 through a bearing and connected to the first pulley 1455, and a small bevel gear fitted to the transmission case 1452 through a bearing and sleeved on the spline shaft 1451 so that dynamic power transmission can be achieved, the large bevel gear and the small bevel gear being engaged with each other; the second bevel gear 1454 comprises a big bevel gear and two small bevel gears, the big bevel gear is fixedly connected with a transmission shaft, the two small bevel gears are respectively in transmission connection with the rough grinding wheel 152 and the fine grinding wheel 153, the big bevel gear is respectively engaged with the two small bevel gears, in the embodiment, the second belt wheel 1456 is arranged between the first belt wheel 1455 and the third belt wheel 1457, and the transmission is carried out through the two transmission belts, so that the change of the transmission link can be adjusted through the change of an included angle between the two transmission belts, the efficiency of the power transmission link is not influenced by the lifting arm 162 at any angle, and meanwhile, the rough grinding wheel 152 and the fine grinding wheel 153 can obtain high rotating speed by adopting three-stage variable speed adjustment, and the pipeline with a smoother inner wall can be polished.
In this embodiment, as shown in fig. 6, the front polishing support mechanism 3 includes a first support cylinder 31 and a plurality of first support assemblies 32, one end of the first support cylinder 31 is connected to the reducing polishing mechanism 1, the plurality of first support assemblies 32 are arranged at intervals along an outer wall of the first support cylinder 31, each first support assembly 32 includes a first cylinder 321 and a first support arm 322, the first cylinder 321 is hinged to one end of the first support cylinder 31, an output end of the first cylinder 321 is hinged to the middle of the first support arm 322, one end of the first support arm 322 is hinged to the other end of the first support cylinder 31, and the other end of the first support arm 322 is coupled to a support wheel; specifically, the one end of first supporting cylinder 31 is connected on motor mount 142 through two bearings, the driving motor 141 that polishes is located first supporting cylinder 31, further radial space can be saved, first supporting cylinder 31 cover is equipped with the slip ring, be provided with the comb ear on the slip ring, first cylinder 321 is articulated with the comb ear, preferentially, the quantity of first supporting component 32 is three groups, in operation, first cylinder 321 stretches out, thereby drive first supporting arm 322 and open, make the supporting wheel top lean on the pipeline inner wall, and then provide radial holding power for reducing grinding mechanism 1, so that reducing grinding mechanism 1 works, set up the supporting wheel on first supporting arm 322, so that displacement supporting mechanism 2 or back displacement supporting mechanism 4 drive down in the front, preceding grinding supporting mechanism 3 can move along the pipeline, reduce the resistance that receives during the removal.
Further, the revolution driving part 6 includes a revolution driving motor 61 and a second gear ring 62, the revolution driving motor 61 is installed on the outer wall of the first supporting cylinder 31, the second gear ring 62 is fixed on the motor fixing frame 142, the output end of the revolution driving motor 61 is in transmission connection with the second gear ring 62 through a gear, during operation, the revolution driving motor 61 drives the second gear ring 62 to rotate, the second gear ring 62 drives the motor fixing frame 142 to rotate, the motor fixing frame 142 drives the guiding mandrel 12 to rotate, and the guiding mandrel 12 drives the grinding assembly 15 to rotate through the lifting assembly 16, thereby performing grinding operation on the inner wall of the pipeline.
As shown in fig. 8, in this embodiment, the front displacement support mechanism 2 includes a second support cylinder 21, a front displacement cylinder 22, and a plurality of second support assemblies 23, the front displacement cylinder 22 is fixed at the other end of the first support cylinder 31, the front displacement cylinder 22 extends into the second support cylinder 21, and an output end of the front displacement cylinder 22 is fixedly connected to one end of the second support cylinder 21 away from the first support cylinder 31, the plurality of second support assemblies 23 are arranged at intervals along an outer wall of the second support cylinder 21, the second support assemblies 23 include a second cylinder 231 and a second support arm 232, the second cylinder 231 is hinged to one end of the second support cylinder 21, an output end of the second cylinder 231 is hinged to a middle portion of the second support arm 232, one end of the second support arm 232 is hinged to the other end of the second support cylinder 21, and the other end of the second support arm 232 is coupled to a clamping claw; preferably, the number of the second supporting components 23 is three, a sliding ring is sleeved on the first supporting cylinder 31, the sliding ring is provided with a comb lug, the second cylinder 231 is hinged with the comb lug, the front displacement cylinder 22 is fixedly connected with the first supporting cylinder 31 through a star-shaped fixing block, the output end of the front displacement cylinder 22 is fixedly connected with the second supporting cylinder 21 through another star-shaped fixing block, during operation, the output end of the front displacement cylinder 22 drives the first supporting cylinder 31 to extend out, meanwhile, the rear displacement supporting mechanism 4 drives the reducing grinding mechanism 1 to move, when the front displacement cylinder 22 completely extends out and the rear displacement supporting mechanism 4 finishes driving the reducing grinding mechanism 1 to move, the output end of the second cylinder 231 extends out so as to drive the second supporting arm 232 to extend outwards, at the moment, the clamping claw is supported on the inner wall of the pipeline, then the front displacement cylinder 22 retracts so as to drive the reducing grinding mechanism 1 to move, after the front displacement cylinder 22 is completely retracted, the second cylinder 231 drives the second supporting arm 232 to retract, then the rear displacement supporting mechanism 4 drives the reducing grinding mechanism 1 to move, meanwhile, the front displacement cylinder 22 extends out, and the reducing grinding device is circulated in such a way that the inner wall of the pipeline is continuously ground, so that the grinding efficiency is improved.
As shown in fig. 7, in this embodiment, the rear polishing support mechanism 5 includes a third support cylinder 51 and a plurality of third support assemblies 52, one end of the third support cylinder 51 is connected to the variable diameter polishing mechanism 1, the plurality of third support assemblies 52 are disposed at intervals along an outer wall of the third support cylinder 51, each third support assembly 52 includes a third cylinder 521 and a third support arm 522, the third cylinder 521 is hinged to one end of the third support cylinder 51, an output end of the third cylinder 521 is hinged to the middle of the third support arm 522, one end of the third support arm 522 is hinged to the other end of the third support cylinder 51, and the other end of the third support arm 522 is coupled to a support wheel; preferably, the number of the three support assemblies is three, specifically, the third support cylinder 51 is connected with the guide mandrel 12 through a rotation center shaft and a bearing, the rotation center shaft is sleeved on the guide mandrel 12, the third support cylinder 51 is connected with the rotation center shaft through a bearing, the reducing drive part 13 is located in the third support cylinder 51, a sliding ring is also sleeved on the third support cylinder 51, the sliding ring is provided with a comb ear, the third cylinder 521 is hinged with the comb ear, when the device works, the third cylinder 521 extends out to drive the third support arm 522 to open, so that the support wheel abuts against the inner wall of the pipeline, further, a radial support force is provided for the reducing grinding mechanism 1, so that the reducing grinding mechanism 1 works, the support wheel is also arranged on the third support arm, so that the rear grinding support mechanism 5 can move along the pipeline under the driving of the front displacement support mechanism 2 or the rear displacement support mechanism 4, the resistance to movement is reduced.
As shown in fig. 9, in this embodiment, the front displacement support mechanism 2 includes a fourth support cylinder 41, a rear displacement cylinder 42, and a plurality of fourth support assemblies 43, the rear displacement cylinder 42 is fixed at the other end of the third support cylinder 51, the rear displacement cylinder 42 extends into the fourth support cylinder 41, and the output end of the rear displacement cylinder 42 is fixedly connected to one end of the fourth support cylinder 41 far from the third support cylinder 51, the plurality of fourth support assemblies 43 are arranged at intervals along the outer wall of the fourth support cylinder 41, the fourth support assemblies 43 include a fourth cylinder 431 and a fourth support arm 432, the fourth cylinder 431 is hinged to one end of the fourth support cylinder 41, the output end of the fourth cylinder 431 is hinged to the middle of the fourth support arm 432, one end of the fourth support arm 432 is hinged to the other end of the fourth support cylinder 41, and the other end of the fourth support arm 432 is journaled with a clamping claw; preferably, the number of the fourth supporting components 43 is three, a sliding ring is sleeved on the fourth supporting cylinder 41, the sliding ring is provided with a comb lug, the fourth cylinder 431 is hinged with the comb lug, the rear displacement cylinder 42 is fixedly connected with the third supporting cylinder 51 through a star-shaped fixing block, the output end of the rear displacement cylinder 42 is fixedly connected with the fourth supporting cylinder 41 through another star-shaped fixing block, when the device works, the fourth cylinder 431 works to drive the fourth supporting arm 432 to open, so that the clamping claw is supported on the inner wall of the pipeline, the fourth supporting cylinder 41 is fixed with the pipeline, at this time, the second cylinder 231 drives the second supporting arm 232 to retract, then the rear displacement cylinder 42 extends, at the same time, the front displacement cylinder 22 extends, at this time, because the fourth supporting arm 432 is fixed on the pipeline, the rear displacement cylinder 42 pushes the reducing grinding mechanism 1 to move when extending, after the stroke of the rear displacement cylinder 42 is completed, meanwhile, the front displacement cylinder 22 is completely extended, the second cylinder 231 drives the second support arm 232 to be opened at the moment, so that the second support arm 232 is fixed with the pipeline, the fourth cylinder 431 drives the fourth support arm 432 to be retracted, then the front displacement cylinder 22 is retracted, the rear displacement cylinder 42 is retracted, and at the moment, as the second support arm 232 is fixed with the pipeline, the front displacement cylinder 22 pulls the reducing grinding mechanism 1 to move when retracted; so circulate, realize displacement supporting mechanism 2 before promoting in turn with back displacement supporting mechanism 4 reducing grinding machanism 1 along the pipeline removal, make reducing grinding machanism 1 can the uninterrupted operation, accomplish the pipeline inner wall work of polishing.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (1)
1. A pipeline inner wall reducing grinding method is characterized by comprising a reducing grinding mechanism (1), a front displacement supporting mechanism (2) and a front grinding supporting mechanism (3) which are arranged at one end of the reducing grinding mechanism (1), a rear displacement supporting mechanism (4) and a rear grinding supporting mechanism (5) which are arranged at the other end of the reducing grinding mechanism (1), and a revolution driving part (6), the reducing grinding mechanism (1) is used for grinding the inner wall of the pipeline, the front displacement supporting mechanism (2) and the rear displacement supporting mechanism (4) alternately provide axial displacement for the reducing grinding mechanism (1), the front grinding supporting mechanism (3) and the rear grinding supporting mechanism (5) are used for providing radial supporting force for the reducing grinding mechanism (1), the revolution driving part (6) is used for driving the reducing grinding mechanism (1) to rotate;
the grinding device is placed into a pipeline to be ground, then the front grinding support mechanism 3 and the rear grinding support mechanism 5 work simultaneously, the variable-diameter grinding mechanism 1 is supported in the pipeline, good support rigidity is guaranteed, conditions are created for a large amount of grinding work, then the variable-diameter grinding mechanism 1 works, the movable radius is adjusted according to different pipeline inner diameters, the revolution driving part 6 drives the variable-diameter grinding mechanism 1 to rotate simultaneously, accordingly, grinding is conducted on the inner wall of the pipeline, defects such as welding beading, welding slag and rust spots on the inner surface of the pipeline are ground, the inner wall of the pipeline is smoother, the front displacement support mechanism 2 and the rear displacement support mechanism 4 alternately drive the variable-diameter grinding mechanism 1 to move axially along the pipeline, and the whole inner wall of the pipeline is ground;
the front polishing supporting mechanism 3 and the rear polishing supporting mechanism 5 support the reducing polishing mechanism 1 together to provide good supporting rigidity for the reducing polishing mechanism 1 and create conditions for carrying out a large amount of grinding work, the reducing polishing mechanism 1 adjusts the moving radius according to pipelines with different pipe diameters and rotates under the drive of the revolution driving part 6 to polish welding beading, welding slag and rusty spots on the inner wall of the pipeline to form a smooth surface, the application range is wider, the front displacement supporting mechanism 2 and the rear displacement supporting mechanism 4 alternately provide axial displacement for the reducing polishing mechanism 1 to drive the reducing polishing mechanism 1 to finish polishing of the inner wall of the whole pipeline, so that the reducing polishing mechanism 1 can run uninterruptedly, the polishing efficiency is improved, and the grinding device is suitable for polishing of long pipelines;
the reducing drive motor drives the reducing screw rod 11 to rotate, and the thread turning directions of two ends of the reducing screw rod 11 are opposite, so that the rotation of the reducing screw rod 11 can enable two sliding nuts to move oppositely, the two sliding nuts drive one end of the lifting assembly 16 to move along the guide mandrel 12, the lifting assembly 16 drives the polishing assemblies 15 to extend outwards until the polishing assemblies 15 contact the inner wall of the pipeline, the adjustment of the moving radius of the polishing assemblies 15 is realized, then the polishing drive assemblies work to drive the polishing assemblies 15 to work, meanwhile, the guide mandrel 12 rotates under the drive of the revolution drive part 6, and the guide mandrel 12 drives the three groups of polishing assemblies 15 to rotate so as to polish the inner wall of the pipeline;
the lifting assembly 16 comprises a lifting block 161 and lifting arms 162 respectively hinged to two ends of the lifting block 161, the other ends of the lifting arms 162 are hinged to a sliding block 164 through a hinge seat 163, the sliding block 164 is embedded in a dovetail groove, and the other ends of the sliding block 164 are fixed on a sliding nut; sliding block 164 moves along the dovetail under sliding nut's drive, and two lift arms 162 prop up lifting block 161, and then drive abrasive material holder 151 and stretch out, realize the process of reducing, can be directed against the pipeline of different pipe diameters, application scope is wider, and the combination of coarse grinding emery wheel 152 and finish grinding emery wheel 153 is integrative simultaneously, and the effect of polishing is better.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952036.2A CN110640570A (en) | 2019-10-09 | 2019-10-09 | Pipeline inner wall reducing polishing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910952036.2A CN110640570A (en) | 2019-10-09 | 2019-10-09 | Pipeline inner wall reducing polishing method |
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| CN110640570A true CN110640570A (en) | 2020-01-03 |
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| CN201910952036.2A Withdrawn CN110640570A (en) | 2019-10-09 | 2019-10-09 | Pipeline inner wall reducing polishing method |
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| CN112371662A (en) * | 2020-10-12 | 2021-02-19 | 张琦 | A pipeline inner wall cleaning device for car maintenance |
| CN112809533A (en) * | 2021-04-19 | 2021-05-18 | 山东辛丁技术有限公司 | Oil gas pipeline scale removal device |
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