CN112223071A - Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering - Google Patents

Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering Download PDF

Info

Publication number
CN112223071A
CN112223071A CN202011060884.1A CN202011060884A CN112223071A CN 112223071 A CN112223071 A CN 112223071A CN 202011060884 A CN202011060884 A CN 202011060884A CN 112223071 A CN112223071 A CN 112223071A
Authority
CN
China
Prior art keywords
wall
fixed
polishing
pipeline
sliding
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Withdrawn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
CN202011060884.1A
Other languages
Chinese (zh)
Inventor
陈春娟
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011060884.1A priority Critical patent/CN112223071A/en
Publication of CN112223071A publication Critical patent/CN112223071A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00Other grinding machines or devices
    • B24B27/033Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00Other grinding machines or devices
    • B24B27/0092Grinding attachments for lathes or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36Single-purpose machines or devices
    • B24B5/40Single-purpose machines or devices for grinding tubes internally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety 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
    • B24B55/06Dust extraction equipment on grinding or polishing machines

Abstract

The invention discloses an inner wall polishing and derusting device for welding a pipeline for a nuclear power station cooling water project, which aims at the problems that the existing pipeline polishing operation is generally carried out by a polishing machine, the polishing machine has large shaking amplitude in the polishing process, a large amount of physical power is required to be consumed by workers for supporting and controlling, the operation is inconvenient, and the polishing efficiency is low. According to the invention, the connecting rod, the supporting rod and the connecting mode between the connecting rod and the supporting rod are used for supporting the supporting rod, so that the abutting block is contacted with the inner wall of the pipeline, and the abutting block can be turned over at a certain angle through the limiting function of the limiting spring, so that the abutting block is tightly contacted with the inner wall of the pipeline through the anti-slip strip, the sliding is not easy to generate, the center positioning is firm, the manpower is saved, the control is simple and convenient, and the polishing effect is improved.

Description

Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering
Technical Field
The invention relates to the technical field of polishing of inner walls of pipelines, in particular to an inner wall polishing and rust removing device for welding of pipelines for cooling water engineering of nuclear power stations.
Background
The circulating cooling water is used circularly after medium heat is exchanged through a heat exchanger or medium heat is exchanged in a direct contact heat exchange mode and cooled by a cooling tower, so that water resources are saved, a reactor needs to be cooled in the nuclear power generation process, a large-scale cooling water pipeline needs to be built, the cooling water pipelines are formed by welding and connecting one standard pipeline, a series of preparation processes are needed during welding, and polishing is carried out on paint and rust on the inner wall of a pipeline port, so that the method is an important process.
Pipeline is polished generally and is gone on through the buffing machine, and the buffing machine is big at the in-process shake range of polishing, needs the workman to consume a large amount of physical power and supports control, and the operation is inconvenient, and polishes inefficiency, and current patent is difficult for solving this type of problem, consequently, the inner wall rust cleaning device that polishes when needing a pipeline for the nuclear power station cooling water engineering to weld solves above-mentioned problem urgently.
Disclosure of Invention
Based on the technical problems that the existing pipeline polishing operation is generally carried out through a polishing machine, the polishing machine has large shaking amplitude in the polishing process, workers need to consume a large amount of physical power to carry out support control, the operation is inconvenient, and the polishing efficiency is low, the invention provides the inner wall polishing and rust removing device for the nuclear power station cooling water engineering during the pipeline welding.
In order to achieve the purpose, the invention adopts the following technical scheme:
an inner wall polishing and derusting device used in welding of pipelines for cooling water engineering of nuclear power plants comprises a lug slider, a motor and a stay bar, wherein a square groove is formed in the outer wall of one side of the lug, the inner wall of the square groove is connected with the stay bar through a short shaft in a sleeved mode, a base block is fixed to the outer wall of one side of the stay bar through a screw, a connecting rod is connected to the outer wall of one side of the base block through a short shaft in a sleeved mode, one end of the connecting rod is connected with the slider through a sleeved mode, a threaded rod is fixed to the outer wall of the bottom of the lug through a screw, the threaded rod is connected with the slider through a sleeved mode, a rotary rod is connected to the outer wall of the threaded rod through a screw, a sleeve block is sleeved on the outer wall of the threaded rod, an anti-slip clamping mechanism is arranged at one end of, the top end of an output shaft of the motor is fixed with a rotating shaft through a screw, the outer wall of the motor is provided with a dust removal mechanism, and the top end of the rotating shaft is fixed with a grinding roller through a screw.
As a still further scheme of the invention: the anti-skidding clamping mechanism comprises a supporting block, and the outer wall of one side of the supporting block is connected with the supporting rod through a hinge.
As a still further scheme of the invention: the outer wall of one side of the supporting block is bonded with an anti-slip strip, and a limiting spring is fixed between the outer wall of one side of the supporting block and one end of the supporting rod through a screw.
As a still further scheme of the invention: the adjusting mechanism comprises a first sliding block, a first sliding groove is formed in the outer wall of one side of the transverse plate, and the first sliding block is connected with the first sliding groove in a sleeved mode.
As a still further scheme of the invention: the outer wall of one side of the first sliding block is fixedly provided with a limiting screw rod through a bolt, the outer wall of the top of the first sliding block is fixedly provided with a support through a screw, and the outer wall of one side of the support is provided with a second sliding groove.
As a still further scheme of the invention: the inner wall of the second sliding groove is connected with a second sliding block in a sliding mode, a sliding rod is fixed to the outer wall of the top of the second sliding block through a screw, a tension spring is fixed to the outer wall of the top of the second sliding block through a screw, and one end of the tension spring is fixedly connected with the inner wall of the top of the support through a screw.
As a still further scheme of the invention: the bottom end of the sliding rod is fixed with a top plate through a screw, and the outer wall of the bottom of the top plate is fixed with a control rod through a screw.
As a still further scheme of the invention: the dust removal mechanism comprises an air box and a rotating shaft, the air box is fixed on the outer wall of one side of the motor through screws, fan blades are fixed on the outer wall of the rotating shaft through screws, and the fan blades are located on the inner wall of the air box.
As a still further scheme of the invention: the outer wall of one side of bellows has the exhaust tube through the fix with screw, and the outer wall of one side of bellows has cup jointed the hose, the one end of hose is provided with dust removal mechanism.
The invention has the beneficial effects that:
1. by arranging the connecting rod, the supporting rod, the abutting block, the limiting spring and the anti-slip strip, the connecting rod, the supporting rod and the connecting mode between the connecting rod and the supporting rod enable the supporting rod to be supported, finally the abutting block is enabled to be in contact with the inner wall of the pipeline, the rotating rod is continuously rotated to enable the anti-slip strip to be in contact with the inner wall of the pipeline, the abutting block can be enabled to turn over at a certain angle through the limiting function of the limiting spring, and further the abutting block is enabled to be in close contact with the inner wall of the pipeline through the anti-slip strip, sliding is not easy to generate, the center is firmly positioned, manpower is saved;
2. by arranging the first sliding block, the first sliding groove and the transverse plate, the first sliding block slides on the inner wall of the first sliding groove according to the position of the port of the pipeline, the polishing roller is adjusted to a position convenient for polishing, and the polishing roller is simple to operate and high in practicability;
3. by arranging the motor, the rotating shaft, the air box, the exhaust tube and the hose, when the motor drives the rotating shaft to rotate, the fan blades on the inner wall of the air box are driven to rotate, so that the exhaust tube performs air exhaust, dust and smell generated in the polishing process are collected and finally conveyed into a dust removal mechanism arranged on the rear side through the hose, and the dust and harmful gas are prevented from damaging a human body;
4. through setting up tension spring, slide bar, roof, motor and the roller of polishing, tension spring promotes the roof to the outside for the roller of polishing of motor front end remains throughout with the inner wall contact of pipeline, makes the staff can reduce hard, alleviates work burden.
Drawings
FIG. 1 is a perspective view of an inner wall polishing and rust removing device for welding a pipeline for a nuclear power station cooling water project, which is provided by the invention;
FIG. 2 is a perspective view of an air box part in the inner wall polishing and rust removing device for the nuclear power station cooling water engineering during welding of the pipeline;
FIG. 3 is a perspective view of a tension spring part in the inner wall polishing and rust removing device for the nuclear power station cooling water engineering during welding;
FIG. 4 is a schematic structural diagram of a supporting block part in the inner wall polishing and rust removing device for the nuclear power station cooling water engineering during welding;
FIG. 5 is a perspective view of a slide part in the inner wall polishing and rust removing device for welding the pipe for the cooling water engineering of the nuclear power plant.
In the figure: 1 convex block, 2 square grooves, 3 support rods, 4 base blocks, 5 threaded rods, 6 sliding pieces, 7 connecting rods, 8 rotating rods, 9 sleeve blocks, 10 abutting blocks, 11 anti-skidding strips, 12 limiting springs, 13 cross rods, 14 transverse plates, 15 first sliding grooves, 16 first sliding blocks, 17 limiting screw rods, 18 supports, 19 second sliding grooves, 20 second sliding blocks, 21 tension springs, 22 sliding rods, 23 top plates, 24 control rods, 25 air boxes, 26 rotating shafts, 27 grinding rollers, 28 air pumping pipes, 29 motors and 30 hoses.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an inner wall polishing and rust removing device for welding a pipeline for a nuclear power station cooling water project comprises a convex block 1, a slider 6, a motor 29 and a stay bar 3, wherein a square groove 2 is formed in the outer wall of one side of the convex block 1, the inner wall of the square groove 2 is connected with the stay bar 3 through a short shaft in a sleeved mode, a base block 4 is fixed on the outer wall of one side of the stay bar 3 through a screw, a connecting rod 7 is sleeved on the outer wall of one side of the base block 4 through the short shaft, one end of the connecting rod 7 is connected with the slider 6 through the sleeved mode, a threaded rod 5 is fixed on the outer wall of the bottom of the convex block 1 through a screw, the threaded rod 5 is connected with the slider 6 through the sleeved mode, a rotating rod 8 is connected on the outer wall of the threaded rod 5 through a screw, a sleeve block 9 is sleeved on the outer wall of, the outer wall of the transverse plate 14 is provided with an adjusting mechanism, the top end of an output shaft of the motor 29 is fixed with a rotating shaft 26 through a screw, the outer wall of the motor 29 is provided with a dust removing mechanism, and the top end of the rotating shaft 26 is fixed with a polishing roller 27 through a screw.
In the invention, the anti-skid clamping mechanism comprises a supporting block 10, and the outer wall of one side of the supporting block 10 is connected with the support rod 3 through a hinge.
In the invention, an anti-slip strip 11 is bonded on the outer wall of one side of the resisting block 10, and a limiting spring 12 is fixed on the outer wall of one side of the resisting block 10 and one end of the stay bar 3 through screws.
In the invention, the adjusting mechanism comprises a first sliding block 16, a first sliding groove 15 is formed in the outer wall of one side of the transverse plate 14, and the first sliding block 16 is connected with the first sliding groove 15 in a sleeved mode.
In the invention, a limit screw 17 is fixed on the outer wall of one side of a first sliding block 16 through a bolt, a bracket 18 is fixed on the outer wall of the top of the first sliding block 16 through a bolt, and a second sliding groove 19 is formed on the outer wall of one side of the bracket 18.
In the invention, the inner wall of the second sliding chute 19 is connected with a second sliding block 20 in a sliding manner, the outer wall of the top of the second sliding block 20 is fixed with a sliding rod 22 through a screw, the outer wall of the top of the second sliding block 20 is fixed with a tension spring 21 through a screw, and one end of the tension spring 21 is fixedly connected with the inner wall of the top of the bracket 18 through a screw.
In the invention, the bottom end of the sliding rod 22 is fixed with a top plate 23 through a screw, and the outer wall of the bottom of the top plate 23 is fixed with a control rod 24 through a screw.
In the invention, the dust removing mechanism comprises an air box 25 and a rotating shaft 26, the air box 25 is fixed on the outer wall of one side of a motor 29 through screws, fan blades are fixed on the outer wall of the rotating shaft 26 through screws, and the fan blades are positioned on the inner wall of the air box 25.
In the invention, an air exhaust pipe 28 is fixed on the outer wall of one side of the air box 25 through a screw, a hose 30 is sleeved on the outer wall of one side of the air box 25, and a dust removal mechanism is arranged at one end of the hose 30.
When the polishing device is used, one end of the convex block 1 is inserted into a pipeline to be polished towards the inner wall of the pipeline, one hand holds the bottom of the threaded rod 5, the other hand rotates the rotating rod 8, so that the rotating rod 8 drives the sleeve block 9 and the sliding piece 6 to slide towards one end of the convex block 1, the supporting rod 3 is supported by the connecting rod 7, the supporting rod 3 and the function of the connection mode between the connecting rod 7 and the supporting rod 3, finally the supporting block 10 is contacted with the inner wall of the pipeline, the rotating rod 8 is continuously rotated to enable the anti-slip strip 11 to be contacted with the inner wall of the pipeline, the supporting block 10 can be overturned at a certain angle by the limiting function of the limiting spring 12, further the supporting block 10 is tightly contacted with the inner wall of the pipeline through the anti-slip strip 11, the sliding is not easy to generate sliding, the center positioning is firm, the first sliding block 16 slides on the inner wall of the first sliding chute 15 according to, then the position of the motor 29 is determined by rotating the limit screw 17, finally the motor 29 is powered on through an external power supply, the control rod 24 is held by hand to start polishing, the motor 29 and the polishing roller 27 are pushed outwards under the action of the tension spring 21 to polish the inner wall of the pipeline, meanwhile, the motor 29 drives the rotating shaft 26 to rotate to drive the fan blades on the inner wall of the air box 25 to rotate, so that the air exhaust pipe 28 performs air exhaust, dust and odor generated in the polishing process are collected, and finally the dust and odor are transmitted to a dust removal mechanism arranged on the rear side through the hose 30.
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 (9)

1. The inner wall polishing and rust removing device during welding of the pipeline for the cooling water engineering of the nuclear power station comprises a convex block (1), a sliding piece (6), a motor (29) and a support rod (3), wherein a square groove (2) is formed in the outer wall of one side of the convex block (1), the inner wall of the square groove (2) is connected with the support rod (3) through a short shaft in a sleeved mode, a base block (4) is fixed on the outer wall of one side of the support rod (3) through a screw, a connecting rod (7) is connected to the outer wall of one side of the base block (4) through a short shaft in a sleeved mode, one end of the connecting rod (7) is connected with the sliding piece (6) through a sleeved mode, the inner wall polishing and rust removing device is characterized in that a threaded rod (5) is fixed on the outer wall of the bottom of the convex block (1) through a screw, the threaded rod (5) is connected with the sliding piece (6) through, the one end of vaulting pole (3) is provided with anti-skidding fixture, the one end of threaded rod (5) is fixed with horizontal pole (13) through the bearing, the one end of horizontal pole (13) is fixed with diaphragm (14) through the fix with screw, the outer wall of diaphragm (14) is provided with adjustment mechanism, the output shaft top of motor (29) is fixed with pivot (26) through the fix with screw, and the outer wall of motor (29) is provided with dust removal mechanism, the top of pivot (26) is fixed with grinding roller (27) through the fix with screw.
2. The inner wall polishing and rust removing device for the welding of the pipe for the cooling water engineering of the nuclear power plant as claimed in claim 1, wherein the anti-slip clamping mechanism comprises a supporting block (10), and the outer wall of one side of the supporting block (10) is connected with the stay bar (3) through a hinge.
3. The inner wall polishing and rust removing device for the welding of the pipeline for the cooling water engineering of the nuclear power plant as claimed in claim 2, wherein an anti-slip strip (11) is bonded to the outer wall of one side of the abutting block (10), and a limiting spring (12) is fixed to the outer wall of one side of the abutting block (10) and one end of the stay bar (3) through a screw.
4. The inner wall polishing and rust removing device for the welding of the pipeline for the cooling water engineering of the nuclear power station as claimed in claim 1, wherein the adjusting mechanism comprises a first sliding block (16), a first sliding groove (15) is formed in the outer wall of one side of the transverse plate (14), and the first sliding block (16) is connected with the first sliding groove (15) in a sleeved mode.
5. The inner wall polishing and rust removing device for the welding of the pipeline for the cooling water engineering of the nuclear power plant is characterized in that a limiting screw (17) is fixed on the outer wall of one side of the first sliding block (16) through a bolt, a support (18) is fixed on the outer wall of the top of the first sliding block (16) through a bolt, and a second sliding groove (19) is formed in the outer wall of one side of the support (18).
6. The inner wall polishing and rust removing device during welding of the pipeline for the cooling water engineering of the nuclear power plant is characterized in that a second sliding block (20) is connected to the inner wall of the second sliding groove (19) in a sliding mode, a sliding rod (22) is fixed to the outer wall of the top of the second sliding block (20) through screws, a tension spring (21) is fixed to the outer wall of the top of the second sliding block (20) through screws, and one end of the tension spring (21) is fixedly connected with the inner wall of the top of the support (18) through screws.
7. The inner wall polishing and rust removing device for the welding of the pipeline for the cooling water engineering of the nuclear power plant as claimed in claim 6, wherein a top plate (23) is fixed at the bottom end of the sliding rod (22) through a screw, and a control rod (24) is fixed on the outer wall of the bottom of the top plate (23) through a screw.
8. The inner wall polishing and rust removing device during welding of the pipeline for the cooling water engineering of the nuclear power plant as claimed in claim 7, wherein the dust removing mechanism comprises an air box (25) and a rotating shaft (26), the air box (25) is fixed on the outer wall of one side of the motor (29) through screws, fan blades are fixed on the outer wall of the rotating shaft (26) through screws, and the fan blades are located on the inner wall of the air box (25).
9. The inner wall polishing and rust removing device during welding of the pipeline for the cooling water engineering of the nuclear power plant as claimed in claim 8, wherein an exhaust pipe (28) is fixed to the outer wall of one side of the air box (25) through a screw, a hose (30) is sleeved on the outer wall of one side of the air box (25), and a dust removing mechanism is arranged at one end of the hose (30).
CN202011060884.1A 2020-09-30 2020-09-30 Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering Withdrawn CN112223071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011060884.1A CN112223071A (en) 2020-09-30 2020-09-30 Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011060884.1A CN112223071A (en) 2020-09-30 2020-09-30 Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering

Publications (1)

Publication Number Publication Date
CN112223071A true CN112223071A (en) 2021-01-15

Family

ID=74119869

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011060884.1A Withdrawn CN112223071A (en) 2020-09-30 2020-09-30 Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering

Country Status (1)

Country Link
CN (1) CN112223071A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112975703A (en) * 2021-03-04 2021-06-18 铜陵市宏飞科技有限公司 A inner wall rust cleaning grinding device for valve foundry goods processing
CN116025646A (en) * 2023-03-22 2023-04-28 航天轩宇(杭州)智能科技有限公司 Turning device and upset control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112975703A (en) * 2021-03-04 2021-06-18 铜陵市宏飞科技有限公司 A inner wall rust cleaning grinding device for valve foundry goods processing
CN116025646A (en) * 2023-03-22 2023-04-28 航天轩宇(杭州)智能科技有限公司 Turning device and upset control system

Similar Documents

Publication Publication Date Title
CN112223071A (en) Inner wall rust cleaning device that polishes during pipe welding for nuclear power station cooling water engineering
CN112059738A (en) Fine treatment method for sealing packing graphite ring of compressor
CN104833114A (en) Vacuum tubular solar water heater
CN103317426A (en) Full-automatic internal polishing machine for circular elbow pipes
CN204504963U (en) A kind of portable steel tube derusting machine
CN111546196A (en) Multifunctional sand table belt sander
CN210756821U (en) Circular hole-shaped polishing blade for mechanical industry
CN112059841A (en) Fine treatment equipment for sealing packing graphite ring of compressor
CN106985049A (en) A kind of steel pipe processing rust removalling equipment of building engineering field
CN216098240U (en) Polishing equipment for metal product processing
CN215999836U (en) Interior spiral shell is grinding device for tee bend processing convenient to clearance piece
CN204574553U (en) Vacuum pipe solar water heater
CN213081066U (en) Steel sheet rust cleaning device for construction
CN206838694U (en) A kind of environmentally friendly engineering pipeline cleaning equipment of inner wall
CN220260441U (en) Steel member processing production line
CN220637379U (en) Polishing robot
CN215432887U (en) Production device for valve rod processing
CN219059551U (en) Positioning and cutting device for clothing processing
CN209754911U (en) Grinding machine workstation top piece cleaning device
CN217344945U (en) Rust removal device for hydraulic engineering pipeline
CN210756936U (en) Grinding machine for machining valve flashboard
CN213096743U (en) Grinding machine for nylon brush convenient to fix
CN216759398U (en) Tool equipment for removing welding slag
CN220920186U (en) Dust removal cleaning equipment
CN211540745U (en) Surface treatment device for composite solar air source heat pump shell

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210115