CN115229595A - Nodular cast iron pipe bellmouth rotation type grinding device - Google Patents
Nodular cast iron pipe bellmouth rotation type grinding device Download PDFInfo
- Publication number
- CN115229595A CN115229595A CN202210743901.4A CN202210743901A CN115229595A CN 115229595 A CN115229595 A CN 115229595A CN 202210743901 A CN202210743901 A CN 202210743901A CN 115229595 A CN115229595 A CN 115229595A
- Authority
- CN
- China
- Prior art keywords
- cast iron
- iron pipe
- nodular cast
- grinding device
- polishing
- 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.)
- Granted
Links
- 229910001141 Ductile iron Inorganic materials 0.000 title claims abstract description 35
- 230000008093 supporting effect Effects 0.000 claims abstract description 39
- 238000005498 polishing Methods 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- 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
- 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
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Manipulator (AREA)
Abstract
The invention relates to a rotary grinding device for a socket of a nodular cast iron pipe, which comprises a moving frame, a rotary grinding structure and a fixing structure, wherein the rotary grinding structure is positioned above the moving frame and comprises a screw rod, a supporting seat, a fixed seat and a grinding roller, the screw rod is respectively and rotatably arranged on two sides of the top of the moving frame, sliding blocks are sleeved on the periphery of the screw rod in a threaded manner, and the supporting seat is rotatably arranged between the two sliding blocks. According to the invention, the second motor can drive the fixed seat to rotate by meshing the second gear with the first gear, and the polishing roller can be driven by the first hydraulic cylinder to contact with the outer surface of the socket, so that rotary polishing can be performed, the polishing roller can rotate around the socket while polishing, and the polishing roller can be driven to move to other positions for polishing by rotating the lead screw after polishing for one circle, so that the operation is simple and the polishing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of nodular cast iron pipe grinding equipment, in particular to a rotary grinding device for a socket of a nodular cast iron pipe.
Background
Ductile iron pipe is one kind of cast iron pipe. The quality requires that the spheroidization grade of the cast iron pipe is controlled to be 1-3 grade (spheroidization rate is 80 percent), so that the mechanical property of the material is better improved, and the material has the essence of iron and the performance of steel. The annealed ductile cast iron pipe has a metallographic structure of ferrite and a small amount of pearlite, is good in mechanical property, excellent in corrosion resistance, good in extensibility, good in sealing effect and easy to install, and is mainly used for water supply, gas transmission, oil transmission and the like of municipal and industrial enterprises.
Nodular cast iron pipe need polish bell mouth and other kneck in the in-process of processing, consequently need use the equipment of polishing, but because the mouth of pipe and the bell mouth of nodular cast iron pipe are all circular mostly, and conventional equipment of polishing is owing to do not possess rotatory function, so can only polish the article of level form, if need polish the bell mouth of nodular cast iron pipe and just need the removal equipment of polishing that does not stop or make nodular cast iron pipe rotate, it is more loaded down with trivial details and the efficiency of polishing lower to operate.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a rotary grinding device for a socket of a nodular cast iron pipe, which has the following specific technical scheme:
the utility model provides a nodular cast iron pipe bellmouth rotation type grinding device, is including removing frame, rotatory structure and the fixed knot that polishes, rotatory structure of polishing is located the top of removing the frame, rotatory structure of polishing includes lead screw, supporting seat, fixing base and the roller of polishing, the both sides at removal frame top are rotated respectively and are provided with the lead screw, the periphery screw thread of lead screw has cup jointed the slider, two it is provided with the supporting seat to rotate between the slider, one side in the supporting seat is fixed and is provided with two support frames, two slide in the support frame and be provided with the fixing base, the fixed first pneumatic cylinder that is provided with in one side in the fixing base, the fixed mounting bracket that is provided with of output of first pneumatic cylinder, the mounting bracket internal rotation is provided with the roller of polishing, the fixed first motor that is provided with in one side of mounting bracket, the output and the roller of polishing of first motor carry out fixed connection.
As an improvement of the above technical scheme, the periphery of the fixing seat is fixedly sleeved with a first gear, one side of the supporting seat, which is far away from the supporting frame, is fixedly provided with a second motor, the output end of the second motor is fixedly sleeved with a second gear, and the second gear is meshed with the first gear.
As an improvement of the technical scheme, the supporting seat and the fixed seat are both circularly arranged.
As an improvement of the technical scheme, a supporting plate is fixedly arranged on the side surface of the moving frame and positioned at the bottom of the screw rod, and the bottom of the screw rod is connected with the supporting plate in a sliding mode.
As the improvement of the technical scheme, the fixing structure comprises a support, a second hydraulic cylinder, a mounting plate and limiting blocks, the two sides of the upper part of the moving frame are respectively fixedly provided with the support, the second hydraulic cylinder is fixedly arranged on one side of the support, the mounting plate is fixedly arranged at the output end of the second hydraulic cylinder, and the limiting blocks are respectively fixedly arranged at the upper end and the lower end of the mounting plate.
As an improvement of the technical scheme, an arc-shaped groove is formed in the limiting block.
As an improvement of the technical scheme, the two groups of brackets, the second hydraulic cylinder and the limiting block are symmetrically arranged.
As an improvement of the technical scheme, the rotation included angle between the supporting seat and the sliding block is 0-90 degrees.
As the improvement of above-mentioned technical scheme, the fixed third motor that is provided with in top of removing the frame, the fixed cover in output periphery of third motor has been cup jointed two first belt pulleys, two the tip of lead screw is fixed the second belt pulley that has cup jointed respectively, two first belt pulley carries out the transmission with the second belt pulley respectively and is connected.
As an improvement of the technical scheme, the diameter of the second belt pulley is smaller than that of the first belt pulley.
The invention has the beneficial effects that:
through being equipped with mobilizable removal frame, conveniently remove, then it is equipped with the lead screw to rotate respectively in the both sides at removal frame top, the peripheral screw thread of lead screw has cup jointed the slider, it is provided with the supporting seat to rotate through the pivot between two sliders again, rotate through the support frame and install the fixing base in the supporting seat, then the fixed first pneumatic cylinder that is equipped with in the fixing base, and install the tip at first pneumatic cylinder output with the roller of polishing through the mounting bracket, still it has first gear to fix the cover in the periphery of fixing base, still fixed mounting has the second motor in the supporting seat, the fixed cover of output of second motor has connect the second gear, put nodular cast iron pipe behind the removal frame, can make the lead screw rotation drive the supporting seat and remove, make the fixing base can be located the periphery of bellmouth, then through second gear and first gear meshing, can make the second motor drive the fixing base and rotate, and can drive through first pneumatic cylinder and beat the outer surface contact with the bellmouth, thereby can carry out the rotation type and polish, can make the roller polish while polishing, can make the roller polish to polish around the rim and remove other positions through the lead screw rotation drive and polish after polishing roller, easy operation and improved the efficiency of polishing.
The bracket is fixedly arranged on two sides above the moving frame respectively, the second hydraulic cylinder is fixedly arranged on the side face of the bracket, the mounting plate is fixedly arranged at the output end of the second hydraulic cylinder, the limiting blocks are fixedly arranged at the upper position and the lower position of the other side of the mounting plate respectively, and after the nodular cast iron pipe is placed on the moving frame, the second hydraulic cylinder drives the limiting blocks to move to fix the nodular cast iron pipe.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is an elevational view of the overall construction of the present invention;
FIG. 3 is a side view of the supporting seat structure of the present invention;
FIG. 4 is a sectional view of the supporting seat structure of the present invention;
fig. 5 is a top view of the structure of the limiting block of the present invention.
Reference numerals: 1-a moving rack; 101-a support plate; 2-a lead screw; 201-a slide block; 202-a second pulley; 3-a third motor; 301-a first pulley; 4-a support seat; 5-a support frame; 6-fixing the base; 601-a first gear; 7-a second motor; 701-a second gear; 8-a first hydraulic cylinder; 9-grinding the roller; 901-mounting frame; 902-a first motor; 10-a scaffold; 11-a second hydraulic cylinder; 1101-a mounting plate; 12-a limiting block; 1201-arc shaped slot.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, 2, 3, 4 and 5, fig. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a front view of the overall construction of the present invention; FIG. 3 is a side view of the supporting seat structure of the present invention; FIG. 4 is a sectional view of the supporting seat structure of the present invention; FIG. 5 is a top view of the structure of the limiting block of the present invention.
A nodular cast iron pipe bellmouth rotation type grinding device comprises a moving frame (1), a rotation grinding structure and a fixing structure.
Rotatory structure of polishing is located the top that removes frame 1, rotatory structure of polishing includes lead screw 2, supporting seat 4, fixing base 6 and the roller 9 of polishing, the both sides at 1 top of removal frame are rotated respectively and are provided with lead screw 2, the periphery screw thread at lead screw 2 has cup jointed slider 201, it is provided with supporting seat 4 to rotate between two sliders 201, one side in the supporting seat 4 is fixed and is provided with two support frames 5, it is provided with fixing base 6 to slide in two support frames 5, supporting seat 4 and fixing base 6 are circular setting, one side in the fixing base 6 is fixed and is provided with first pneumatic cylinder 8, the fixed mounting bracket 901 that is provided with of output of first pneumatic cylinder 8, the mounting bracket 901 internal rotation is provided with the roller 9 of polishing, the fixed first motor 902 that is provided with in one side of mounting bracket 901, the output and the roller 9 of polishing of first motor 902 carry out fixed connection.
The periphery of the fixed seat 6 is fixedly sleeved with a first gear 601, one side of the support seat 4 far away from the support frame 5 is fixedly provided with a second motor 7, the output end of the second motor 7 is fixedly sleeved with a second gear 701, and the second gear 701 is meshed with the first gear 601.
Put nodular cast iron pipe in removing frame 1 back, can make 2 rotatory drive supporting seats of lead screw 4 remove, make fixing base 6 can be located the periphery of bellmouth, then through second gear 701 and the meshing of first gear 601, can make second motor 7 drive fixing base 6 rotate, and can drive the outer surface contact of polishing roller 9 with the bellmouth through first pneumatic cylinder 8, thereby can carry out the rotation type and polish, can make polishing roller 9 limit polish and rotate round the bellmouth, and can also drive polishing roller 9 through lead screw 2 rotation after polishing the round and remove other positions and polish, easy operation and the efficiency of polishing has been improved.
The rotation included angle between the supporting seat 4 and the sliding block 201 is 0-90 degrees, most of the ductile iron pipes are directly flatly placed and stacked on the ground due to large volumes of the ductile iron pipes, the movable frame 1 can be directly moved to the position near the ductile iron pipes, then the supporting seat 4 is enabled to rotate 90 degrees to be parallel to the ductile iron pipes, and then the fixed seat 6 is moved to the periphery of the socket to carry out rotary polishing.
As shown in fig. 1 and 2, fig. 1 is a front view of the overall structure of the present invention; fig. 2 is a front view of the overall structure of the present invention.
The fixed third motor 3 that is provided with in top of removing frame 1, the fixed cover of output periphery of third motor 3 has been cup jointed two first belt pulleys 301, and the tip of two lead screws 2 is fixed respectively to be cup jointed second belt pulley 202, and two first belt pulleys 301 carry out the transmission with second belt pulley 202 respectively and are connected, and the diameter of second belt pulley 202 is less than the diameter of first belt pulley 301.
The third motor 3 is fixedly arranged between the two lead screws 2 at the top of the movable frame 1, the end part of the third motor 3 is fixedly sleeved with the two first belt pulleys 301, and the top parts of the two lead screws 2 are respectively sleeved with the second belt pulleys 202, so that the two first belt pulleys 301 are respectively in transmission connection with the two second belt pulleys 202 through belts, and the third motor 3 can simultaneously drive the two lead screws 2 to rotate.
In order to provide a supporting effect for the bottom of the screw rod 2, a supporting plate 101 is fixedly arranged on the side surface of the moving frame 1 at the bottom of the screw rod 2, and the bottom of the screw rod 2 is slidably connected with the supporting plate 101.
As shown in fig. 1, 2 and 5, fig. 1 is a front view of the overall structure of the present invention; FIG. 2 is an elevational view of the overall construction of the present invention; fig. 5 is a top view of the structure of the limiting block of the present invention.
The fixed knot constructs including support 10, second pneumatic cylinder 11, mounting panel 1101 and stopper 12, removes the fixed support 10 that is provided with respectively in both sides of 1 top of putting up, and one side of support 10 is fixed and is provided with second pneumatic cylinder 11, and the fixed mounting panel 1101 that is provided with of output of second pneumatic cylinder 11, and the upper and lower both ends of mounting panel 1101 are fixed respectively and are provided with stopper 12, are the symmetry setting between two sets of supports 10, second pneumatic cylinder 11 and the stopper 12 respectively.
The brackets 10 are fixedly arranged on two sides above the movable frame 1 respectively, the second hydraulic cylinder 11 is fixedly arranged on the side face of each bracket 10, the mounting plate 1101 is fixedly arranged at the output end of each second hydraulic cylinder 11, the limiting blocks 12 are fixedly arranged at the upper position and the lower position of the other side of the mounting plate 1101 respectively, and after the nodular cast iron pipe is placed on the movable frame 1, the second hydraulic cylinder 11 can drive the limiting blocks 12 to move to fix the nodular cast iron pipe.
In order to increase the contact area between the limiting block 12 and the ductile cast iron pipe, the limiting block 12 is provided with an arc-shaped groove 1201 inside, so that the fixing effect can be improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a nodular cast iron pipe bellmouth rotation type grinding device, is including removing frame (1), rotatory structure and the fixed knot structure of polishing, its characterized in that: the rotary polishing structure is located above the movable frame (1), and comprises a lead screw (2), a supporting seat (4), a fixed seat (6) and a polishing roller (9), wherein the lead screw (2) is respectively arranged on two sides of the top of the movable frame (1) in a rotating mode, a sliding block (201) and a two sliding blocks (201) are sleeved on the periphery of the lead screw (2) in a threaded mode, the supporting seat (4) is arranged between the sliding blocks (201) in a rotating mode, two supporting frames (5) and two supporting frames (5) are fixedly arranged on one side in each supporting frame (5) in a sliding mode, a first hydraulic cylinder (8) is fixedly arranged on one side in each fixed seat (6), a mounting frame (901) is fixedly arranged at the output end of the first hydraulic cylinder (8), the polishing roller (9) is arranged in the mounting frame (901), a first motor (902) is fixedly arranged on one side of the mounting frame (901), and the output end of the first motor (902) is fixedly connected with the polishing roller (9).
2. The nodular cast iron pipe socket rotary grinding device according to claim 1, wherein: the fixed cover in periphery of fixing base (6) has connect first gear (601), keep away from one side of support frame (5) in supporting seat (4) and fix and be provided with second motor (7), the fixed cover of output of second motor (7) has connected second gear (701), just second gear (701) are connected with first gear (601) meshing.
3. The nodular cast iron pipe socket rotary grinding device according to claim 1, wherein: the supporting seat (4) and the fixing seat (6) are both arranged in a circular shape.
4. The nodular cast iron pipe socket rotary grinding device according to claim 1, wherein: the side of the moving frame (1) is fixedly provided with a supporting plate (101) at the bottom of the screw rod (2), and the bottom of the screw rod (2) is connected with the supporting plate (101) in a sliding mode.
5. The nodular cast iron pipe socket rotary grinding device according to claim 1, wherein: the fixing structure comprises a support (10), a second hydraulic cylinder (11), a mounting plate (1101) and limiting blocks (12), the two sides of the top of the moving frame (1) are respectively fixedly provided with the support (10), one side of the support (10) is fixedly provided with the second hydraulic cylinder (11), the output end of the second hydraulic cylinder (11) is fixedly provided with the mounting plate (1101), and the upper end and the lower end of the mounting plate (1101) are respectively fixedly provided with the limiting blocks (12).
6. The nodular cast iron pipe socket rotary grinding device according to claim 5, wherein: an arc-shaped groove (1201) is formed in the limiting block (12).
7. The nodular cast iron pipe socket rotary grinding device of claim 5, wherein: the two groups of brackets (10), the second hydraulic cylinders (11) and the limiting blocks (12) are symmetrically arranged.
8. The nodular cast iron pipe socket rotary grinding device according to claim 1, wherein: the rotation included angle between the supporting seat (4) and the sliding block (201) is 0-90 degrees.
9. The nodular cast iron pipe socket rotary grinding device of claim 1, wherein: the top of the movable frame (1) is fixedly provided with a third motor (3), the periphery of the output end of the third motor (3) is fixedly sleeved with two first belt pulleys (301), two the end part of the screw rod (2) is respectively and fixedly sleeved with a second belt pulley (202), and the first belt pulleys (301) are respectively in transmission connection with the second belt pulley (202) through belts.
10. The nodular cast iron pipe socket rotary grinding device according to claim 9, wherein: the diameter of the second belt pulley (202) is smaller than that of the first belt pulley (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210743901.4A CN115229595B (en) | 2022-06-27 | 2022-06-27 | Rotary polishing device for socket of nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210743901.4A CN115229595B (en) | 2022-06-27 | 2022-06-27 | Rotary polishing device for socket of nodular cast iron pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115229595A true CN115229595A (en) | 2022-10-25 |
| CN115229595B CN115229595B (en) | 2024-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210743901.4A Active CN115229595B (en) | 2022-06-27 | 2022-06-27 | Rotary polishing device for socket of nodular cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115229595B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015193959A1 (en) * | 2014-06-17 | 2015-12-23 | 川崎重工業株式会社 | Vertical roller mill |
| CN208854383U (en) * | 2018-11-01 | 2019-05-14 | 济南星元保温防腐工程有限公司 | Rust removing device for steel tube is used in direct-buried thermal insulation pipe production |
| CN110802449A (en) * | 2019-09-27 | 2020-02-18 | 含山县人和铸造有限公司 | Nodular cast iron pipe bellmouth rotation type grinding device |
| CN112157496A (en) * | 2020-10-30 | 2021-01-01 | 湖南诚路管业科技有限公司 | Metal tube inner wall grinding device |
| CN213004510U (en) * | 2020-08-28 | 2021-04-20 | 山西永益铸管股份有限公司 | Nodular cast tube bellmouth grinding device |
| CN215092696U (en) * | 2021-07-05 | 2021-12-10 | 宁德市大裕精密铸造有限公司 | Polishing device for nodular iron castings |
-
2022
- 2022-06-27 CN CN202210743901.4A patent/CN115229595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015193959A1 (en) * | 2014-06-17 | 2015-12-23 | 川崎重工業株式会社 | Vertical roller mill |
| CN208854383U (en) * | 2018-11-01 | 2019-05-14 | 济南星元保温防腐工程有限公司 | Rust removing device for steel tube is used in direct-buried thermal insulation pipe production |
| CN110802449A (en) * | 2019-09-27 | 2020-02-18 | 含山县人和铸造有限公司 | Nodular cast iron pipe bellmouth rotation type grinding device |
| CN213004510U (en) * | 2020-08-28 | 2021-04-20 | 山西永益铸管股份有限公司 | Nodular cast tube bellmouth grinding device |
| CN112157496A (en) * | 2020-10-30 | 2021-01-01 | 湖南诚路管业科技有限公司 | Metal tube inner wall grinding device |
| CN215092696U (en) * | 2021-07-05 | 2021-12-10 | 宁德市大裕精密铸造有限公司 | Polishing device for nodular iron castings |
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| Publication number | Publication date |
|---|---|
| CN115229595B (en) | 2024-05-10 |
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