CN112025512A - Steel pipe inner wall rust cleaning device that polishes - Google Patents

Steel pipe inner wall rust cleaning device that polishes Download PDF

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Publication number
CN112025512A
CN112025512A CN202010929794.5A CN202010929794A CN112025512A CN 112025512 A CN112025512 A CN 112025512A CN 202010929794 A CN202010929794 A CN 202010929794A CN 112025512 A CN112025512 A CN 112025512A
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CN
China
Prior art keywords
supporting
seat
steel pipe
supporting head
base
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.)
Withdrawn
Application number
CN202010929794.5A
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Chinese (zh)
Inventor
高得民
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010929794.5A priority Critical patent/CN112025512A/en
Publication of CN112025512A publication Critical patent/CN112025512A/en
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • 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
    • B24B41/02—Frames; Beds; Carriages
    • 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
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • B24B41/06—Work supports, e.g. adjustable steadies
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35—Accessories
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/40—Single-purpose machines or devices for grinding tubes internally

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to the field of machining, and particularly discloses a steel pipe inner wall polishing and derusting device which comprises an adjusting base, a fixed base, a motor, a movable base, a sliding chute and a supporting base; the movable seat is provided with a supporting seat; a first supporting head facing the supporting seat is fixedly arranged on the fixed seat, a second supporting head facing the fixed seat is fixedly arranged on the supporting seat, a water flowing groove which inclines downwards along the inclined plane is formed in the top of the first supporting head, the water flowing groove extends to the end part of the first supporting head, and a water flowing groove is also formed in the bottom of the second supporting head; the bottom of the spraying box is communicated with a nozzle which is positioned right above the flume. According to the invention, through the water flowing grooves arranged on the supporting heads, external water is fed into the steel pipes through the water flowing grooves, the steel pipes can adapt to steel pipes with different sizes, impurities such as scrap iron and the like are taken away in time by the water entering the steel pipes, the residues in the steel pipes are avoided, the inner walls of the steel pipes are greatly protected, and the smooth inner walls are ensured.

Description

Steel pipe inner wall rust cleaning device that polishes
Technical Field
The invention relates to the field of machining, in particular to a steel pipe inner wall polishing and derusting device.
Background
Grinding device polishes mainly the steel pipe, and the steel pipe can regard as the apparatus of transmission water source, transmission liquid, can also be used for the aspect of the building, and the application of steel pipe is comparatively extensive, and the steel pipe will rust if live time overlength, consequently need polish it, keeps the luminance of steel pipe, so people also are more and more high to grinding device's requirement.
The steel pipe inner wall is polished the most difficult, need stretch into the steel pipe with the roller of polishing inside polishing, but the dust that drops among the polishing process etc. is discharged untimely, can follow the roller of polishing and cause wearing and tearing to the steel pipe inner wall, makes the inner wall mar more, and the inner wall is unsmooth, is unfavorable for the follow-up use of steel pipe, consequently, needs improve current steel pipe rust cleaning device.
Disclosure of Invention
The invention aims to provide a steel pipe inner wall polishing and derusting device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a steel pipe inner wall polishing and derusting device comprises an adjusting base, a fixed base, a motor, a movable base, a chute and a supporting base; the fixed seat is fixedly arranged at the right end of the top of the adjusting base, the motor is horizontally and fixedly arranged on the fixed seat, an output shaft of the motor horizontally extends leftwards, a transmission shaft is coaxially and fixedly arranged on the output shaft of the motor, the transmission shaft is driven to rotate by the motor, a polishing roller is coaxially fixed on the transmission shaft, and the polishing roller extends into the steel pipe to polish and derust the inside of the steel pipe; the sliding groove is formed in the upper surface of the adjusting base and is arranged along the left-right direction, the horizontal moving seat is arranged on the upper surface of the adjusting base, the sliding block matched with the sliding groove is fixedly arranged at the lower end of the moving seat, the sliding block is connected in the sliding groove in a sliding mode, the moving seat can move left and right on the adjusting base, the distance between the moving seat and the fixed seat is changed, and the moving seat is provided with a positioning device and is fixed after being adjusted to a proper position; the movable seat is provided with a supporting seat; the first supporting head facing the supporting seat is fixedly arranged on the fixed seat, the second supporting head facing the fixed seat is fixedly arranged on the supporting seat, the first supporting head and the second supporting head are both in a round table structure and are coaxially arranged with the transmission shaft, the interiors of the first supporting head and the second supporting head are hollow, and the transmission shaft can penetrate through the interiors of the first supporting head and the second supporting head; the top of the first supporting head is provided with a water flowing groove which is inclined downwards along the inclined plane, the water flowing groove extends to the end part of the first supporting head, and the bottom of the second supporting head is also provided with a water flowing groove; the top of the fixed seat is fixedly provided with a spraying box, the spraying box extends rightwards and is positioned above the first supporting head, the bottom of the spraying box is communicated with a nozzle positioned right above the water flowing groove, water in the spraying box is downwards sprayed onto the water flowing groove through the nozzle, the water enters the steel pipe from the water flowing groove, and the water in the steel pipe is discharged from the water flowing groove at the bottom of the second supporting head.
Further: the transmission shaft is detachably connected with the output shaft of the motor through the flange, so that the transmission shaft with different lengths can be replaced according to the length of the steel pipe to be polished as required.
Further: the supporting seat is connected with the moving seat in a rotating mode through a vertical rotating shaft, the rotating shaft is located at one end of the supporting seat, the supporting seat can be staggered with the transmission shaft in the front-back position after rotating around the rotating shaft, the steel pipe convenient to install on the transmission shaft is provided with a fastening bolt on the free end of the supporting seat, the supporting seat can be fixed on the moving seat, the supporting seat is parallel to the fixing seat, and the supporting seat is supported through the supporting seat after the steel pipe is installed.
Further: and a guide groove which is inclined downwards is formed in the movable seat corresponding to the position under the water flowing groove at the bottom of the second support head, a collecting groove is formed in the upper surface of the adjusting base corresponding to the lower end of the guide groove, and the flowing water is collected in the collecting groove.
Further: be provided with the guide plate of slope on the bottom of collecting vat, the lower extreme intercommunication of guide plate has the rose box, inside water in the collecting vat enters into the guide plate, filters the impurity granule of aquatic, feeds through the circulating pump on the delivery port of rose box, takes out the water after filtering in the rose box, and the pipeline intercommunication is passed through on the spray box to the other one end of circulating pump, makes inside hydrologic cycle flow, in time will polish discharge such as rust, dust, avoids causing the injury to steel pipe inside.
Further: and a bearing is coaxially and fixedly arranged in the second support head, and the transmission shaft can extend into the bearing.
Further: the fixed rubber circle that covers on the inner wall of bearing, the rubber circle contacts with the transmission shaft, and the friction of increase and transmission shaft guarantees the supporting role to the transmission shaft tip.
Further: the bottom of adjusting the base is provided with unable adjustment base, and unable adjustment base's right-hand member passes through the back shaft and is connected with adjusting the base rotation, makes and adjusts the base and rotate around the back shaft, adjusts inclination, is fixed with the telescopic machanism on vertical side on unable adjustment base's left end, adjusts the base and arranges telescopic machanism's output in on, supports the regulation base through telescopic machanism, adjusts the inclination of adjusting the base.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the flume arranged on the support head, external water is sent into the steel pipe through the flume, and the steel pipe can adapt to steel pipes with different sizes, and the water entering the steel pipe takes away impurities such as scrap iron and the like in time, so that the residues in the steel pipe are avoided, the inner wall of the steel pipe is greatly protected, the smooth inner wall is ensured, the steel pipe is convenient and rapid to install, and the internal water flow is smooth; the supporting seat rotates around the rotating shaft, so that the supporting seat is staggered with the transmission shaft, the steel pipe is convenient to mount quickly, the machining efficiency of the steel pipe is improved, and the machining time is shortened.
Drawings
FIG. 1 is a schematic structural diagram of a steel pipe inner wall polishing and derusting device.
FIG. 2 is a schematic structural diagram of a movable seat in the steel pipe inner wall polishing and derusting device.
Fig. 3 is an enlarged schematic view of a in fig. 1.
In the figure: 1-an adjusting base, 2-a fixed base, 3-a motor, 4-a movable base, 5-a sliding chute, 6-a supporting base, 7-a rotating shaft, 8-a first supporting head, 9-a second supporting head, 10-a transmission shaft, 11-a grinding roller, 12-a water flowing groove, 13-a bearing, 14-a rubber ring, 15-a sliding block, 16-a flow guiding groove, 17-a spraying box, 18-a nozzle, 19-a collecting groove, 20-a flow guiding plate, 21-a filtering box, 22-a circulating pump, 23-a fixed base, 24-a supporting shaft and 25-a telescopic mechanism.
Detailed Description
Example 1
Referring to the drawings, in the embodiment of the invention, the steel pipe inner wall polishing and derusting device comprises an adjusting base 1, a fixed seat 2, a motor 3, a movable seat 4, a sliding chute 5 and a supporting seat 6; the steel pipe grinding machine is characterized in that the fixed seat 2 is fixedly arranged at the right end of the top of the adjusting base 1, the motor 3 is horizontally and fixedly arranged on the fixed seat 2, an output shaft of the motor 3 horizontally extends leftwards, a transmission shaft 10 is coaxially and fixedly arranged on the output shaft of the motor 3, the transmission shaft 10 is driven by the motor 3 to rotate, the transmission shaft 10 is detachably connected with the output shaft of the motor 3 through a flange, the transmission shafts 10 with different lengths can be conveniently replaced according to the length of a steel pipe to be ground, a grinding roller 11 is coaxially fixed on the transmission shaft 10, and the transmission shaft extends into the steel pipe through the grinding roller 11 to grind; the sliding groove 5 is formed in the upper surface of the adjusting base 1 and is arranged along the left-right direction, the horizontal moving seat 4 is arranged on the upper surface of the adjusting base 1, the sliding block 15 matched with the sliding groove 5 is fixedly installed at the lower end of the moving seat 4, the sliding block 15 is connected in the sliding groove 5 in a sliding mode, the moving seat 4 can move left and right on the adjusting base 1, the distance between the moving seat 4 and the fixed seat 2 is changed, and the moving seat 4 is provided with a positioning device and is fixed after being adjusted to a proper position; remove and be provided with supporting seat 6 on the seat 4, rotate through vertical pivot 7 between supporting seat 6 and the removal seat 4 and be connected to pivot 7 is located the one end of supporting seat 6, make supporting seat 6 revolute 7 rotation backs, can make supporting seat 6 stagger on the front and back position with transmission shaft 10, the steel pipe of being convenient for is installed on transmission shaft 10, be provided with fastening bolt on the free end of supporting seat 6, can fix supporting seat 6 on removing seat 4, make supporting seat 6 parallel with fixing base 2, after the installation steel pipe, support through supporting seat 6.
A first supporting head 8 facing the supporting seat 6 is fixedly installed on the fixing seat 2, a second supporting head 9 facing the fixing seat 2 is fixedly installed on the supporting seat 6, the first supporting head 8 and the second supporting head 9 are both in a circular truncated cone structure and are coaxially arranged with the transmission shaft 10, the interiors of the first supporting head 8 and the second supporting head 9 are hollow, and the transmission shaft 10 can penetrate through the first supporting head 8 and the second supporting head 9; the top of the first supporting head 8 is provided with a water flowing groove 12 which is inclined downwards along an inclined plane, the water flowing groove 12 extends to the end part of the first supporting head 8, and the bottom of the second supporting head 9 is also provided with a water flowing groove 12; a spray box 17 is fixedly installed on the top of the fixed seat 2, the spray box 17 extends rightwards and is located above the first support head 8, a nozzle 18 located right above the water flowing groove 12 is communicated with the bottom of the spray box 17, water in the spray box 17 is downwards sprayed onto the water flowing groove 12 through the nozzle 18, the water enters the steel pipe from the water flowing groove 12, the water in the steel pipe is discharged from the water flowing groove 12 at the bottom of the second support head 9, a guide groove 16 which is inclined downwards is arranged on the corresponding movable seat 4 right below the water flowing groove 12 at the bottom of the second support head 9, a collecting groove 19 is arranged on the upper surface of the adjusting base 1 corresponding to the lower end of the guide groove 16, and the flowing water is collected in the collecting groove 19; be provided with the guide plate 20 of slope on collecting vat 19's the bottom, guide plate 20's lower extreme intercommunication has rose box 21, inside water in the collecting vat 19 entered into guide plate 20, filter the impurity particle of aquatic, intercommunication circulating pump 22 on rose box 21's the delivery port, take out the water after filtering in the rose box 21, the pipeline intercommunication is passed through on spray box 17 to circulating pump 22's other one end, make inside hydrologic cycle flow, in time will polish the rust that gets off, discharge such as dust, avoid causing the injury to steel pipe inside.
A bearing 13 is coaxially and fixedly installed in the second support head 9, the transmission shaft 10 can extend into the bearing 13, a rubber ring 14 is fixedly covered on the inner wall of the bearing 13, the rubber ring 14 is in contact with the transmission shaft 10, friction between the rubber ring and the transmission shaft 10 is increased, and a support effect on the end portion of the transmission shaft 10 is guaranteed.
Example 2
On the basis of embodiment 1, the bottom of adjusting base 1 is provided with unable adjustment base 23, and unable adjustment base 23's right-hand member passes through back shaft 24 and is connected with adjusting base 1 rotation, makes and adjusts base 1 and rotates around back shaft 24, adjusts inclination, is fixed with the telescopic machanism 25 on the vertical side on unable adjustment base 23's left end, adjusts base 1 and arranges telescopic machanism 25 in on the output, supports through telescopic machanism 25 and adjusts base 1, adjusts the inclination of adjusting base 1.
When the device is used, a transmission shaft 10 and a grinding roller 11 with suitable lengths are selected according to the length of a steel pipe needing to be subjected to rust removal, the support seat 6 is rotated after the device is installed on an output shaft of a motor 3, the support seat 6 is rotated around a rotating shaft 7, the support seat 6 and the transmission shaft 10 are staggered, the steel pipe is horizontally sleeved outside the grinding roller 11, the right end of the steel pipe abuts against a first support head 8, the support seat 6 is rotated again, the support seat 6 is reset and fixed, the position of a movable seat 4 is adjusted, a second support head 9 abuts against the left end of the steel pipe, the transmission shaft 10 extends into the second support head 9 and contacts with the inner wall of an inner bearing 13, and the end part of the transmission shaft 10 is supported through; the power supply of the device is started, the motor 3 drives the grinding roller 11 to rotate, the inner wall of the steel pipe is ground and derusted, meanwhile, the circulating pump 22 pumps water into the spraying box 17 and sprays water downwards through the nozzle 18, the sprayed water flows into the steel pipe from the launder 12, the inner wall of the steel pipe flows, the ground scrap iron and the like flow leftwards, the discharged water flows into the collecting tank 19 to be collected, and then the impurities are filtered in the filter box 21 to be timely discharged.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A steel pipe inner wall polishing and rust removing device comprises an adjusting base (1), a fixed seat (2), a motor (3), a movable seat (4), a sliding chute (5) and a supporting seat (6); the grinding device is characterized in that the fixed seat (2) is fixedly arranged at the right end of the top of the adjusting base (1), the motor (3) is horizontally and fixedly arranged on the fixed seat (2), an output shaft of the motor (3) horizontally extends leftwards, a transmission shaft (10) is coaxially and fixedly arranged on the output shaft of the motor (3), and the grinding roller (11) is coaxially and fixedly arranged on the transmission shaft (10); the device is characterized in that the sliding groove (5) is formed in the upper surface of the adjusting base (1) and is arranged along the left-right direction, the upper surface of the adjusting base (1) is provided with a horizontal moving base (4), the lower end of the moving base (4) is fixedly provided with a sliding block (15) matched with the sliding groove (5), and the sliding block (15) is connected in the sliding groove (5) in a sliding manner; a supporting seat (6) is arranged on the movable seat (4); a first supporting head (8) facing the supporting seat (6) is fixedly mounted on the fixing seat (2), a second supporting head (9) facing the fixing seat (2) is fixedly mounted on the supporting seat (6), the first supporting head (8) and the second supporting head (9) are both in a circular truncated cone structure and are coaxially arranged with the transmission shaft (10), the interiors of the first supporting head (8) and the second supporting head (9) are hollow, and the transmission shaft (10) penetrates through the first supporting head (8) and the second supporting head (9); the top of the first supporting head (8) is provided with a water flowing groove (12) which is inclined downwards along an inclined plane, the water flowing groove (12) extends to the end part of the first supporting head (8), and the bottom of the second supporting head (9) is also provided with the water flowing groove (12); the spray box (17) is fixedly installed on the top of the fixed seat (2), the spray box (17) extends rightwards and is located above the first supporting head (8), and the bottom of the spray box (17) is communicated with a nozzle (18) located right above the launder (12).
2. The steel pipe inner wall grinding and rust removing device of claim 1, characterized in that: the transmission shaft (10) is connected with an output shaft of the motor (3) through a flange.
3. The steel pipe inner wall grinding and rust removing device of claim 1, characterized in that: the supporting seat (6) is rotatably connected with the movable seat (4) through a vertical rotating shaft (7), the rotating shaft (7) is located at one end of the supporting seat (6), and a fastening bolt is arranged at the free end of the supporting seat (6).
4. The steel pipe inner wall grinding and rust removing device of claim 1, characterized in that: a guide groove (16) which inclines downwards is formed in the movable seat (4) which corresponds to the position right below the water flowing groove (12) at the bottom of the second support head (9), and a collecting groove (19) is formed in the upper surface of the adjusting base (1) which corresponds to the lower end of the guide groove (16).
5. The steel pipe inner wall grinding and rust removing device of claim 4, characterized in that: an inclined guide plate (20) is arranged at the bottom of the collecting tank (19), the lower end of the guide plate (20) is communicated with a filter tank (21), a circulating pump (22) is communicated with a water outlet of the filter tank (21), and the other end of the circulating pump (22) is communicated with the spraying tank (17) through a pipeline.
6. The steel pipe inner wall grinding and rust removing device of claim 1, characterized in that: and a bearing (13) is coaxially and fixedly arranged in the second support head (9), and the transmission shaft (10) extends into the bearing (13).
7. The steel pipe inner wall grinding and rust removing device of claim 6, characterized in that: and a rubber ring (14) is fixedly covered on the inner wall of the bearing (13).
8. The steel pipe inner wall grinding and rust removing device as claimed in any one of claims 1 to 7, wherein: the bottom of adjusting base (1) is provided with unable adjustment base (23), and the right-hand member of unable adjustment base (23) passes through back shaft (24) and is connected with adjusting base (1) rotation, is fixed with telescopic machanism (25) on vertical side on the left end of unable adjustment base (23).
CN202010929794.5A 2020-09-07 2020-09-07 Steel pipe inner wall rust cleaning device that polishes Withdrawn CN112025512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010929794.5A CN112025512A (en) 2020-09-07 2020-09-07 Steel pipe inner wall rust cleaning device that polishes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010929794.5A CN112025512A (en) 2020-09-07 2020-09-07 Steel pipe inner wall rust cleaning device that polishes

Publications (1)

Publication Number Publication Date
CN112025512A true CN112025512A (en) 2020-12-04

Family

ID=73584878

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010929794.5A Withdrawn CN112025512A (en) 2020-09-07 2020-09-07 Steel pipe inner wall rust cleaning device that polishes

Country Status (1)

Country Link
CN (1) CN112025512A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112677011A (en) * 2020-12-24 2021-04-20 张秀娟 Steel pipe grinding device
CN112720215A (en) * 2020-12-21 2021-04-30 霍丽娟 Machining device for steel pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112720215A (en) * 2020-12-21 2021-04-30 霍丽娟 Machining device for steel pipe
CN112677011A (en) * 2020-12-24 2021-04-20 张秀娟 Steel pipe grinding device

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Application publication date: 20201204