CN110000918B - Vibration beating wheel used in cement coating process of cast tube - Google Patents
Vibration beating wheel used in cement coating process of cast tube Download PDFInfo
- Publication number
- CN110000918B CN110000918B CN201910303886.XA CN201910303886A CN110000918B CN 110000918 B CN110000918 B CN 110000918B CN 201910303886 A CN201910303886 A CN 201910303886A CN 110000918 B CN110000918 B CN 110000918B
- Authority
- CN
- China
- Prior art keywords
- spoke
- wheel
- hub
- cast tube
- outer rim
- 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.)
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Links
- 239000004568 cement Substances 0.000 title claims abstract description 24
- 238000010009 beating Methods 0.000 title claims abstract description 16
- 238000000576 coating method Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000013016 damping Methods 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 8
- 240000005002 Erythronium dens canis Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
- B28B21/34—Centrifugal moulding combined with vibrating or other additional compacting means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a vibration beating wheel used in the cement lining process of a cast tube, which comprises a wheel hub and a pressing wheel connected with the wheel hub, wherein the pressing wheel comprises a plurality of convex teeth which are used for being in contact with the cast tube and are in a straight shape, the convex teeth are distributed along the circumferential direction, and the length direction of the convex teeth is parallel to the axis of the pressing wheel. The vibration wheel used in the cement lining process of the cast tube has large vibration force, can improve the cement lining strength of the spherical graphite cast tube with nominal diameters DN 1600-DN 2600, reduce the lining cracking defect, improve the lining quality of the large-caliber cast tube, and reduce the production and manufacturing cost of enterprises.
Description
Technical Field
The invention belongs to the technical field of cast tube production equipment, and particularly relates to a vibration beating wheel used in a cement lining process of a cast tube.
Background
In the production process of cast pipes, cement lining is an important corrosion prevention process.
In the existing production process of carrying out a sling type centrifugal lining coating process on a spherical ink cast tube with nominal diameter DN 1100-DN 2600 by adopting a hot die method, a herringbone vibration wheel pair is adopted to shake the cast tube in the high-speed centrifugal process so as to improve the strength of a cement lining.
In the using process of the herringbone shaking and beating wheel, the shaking force of the herringbone shaking and beating wheel is small, so that the herringbone shaking and beating wheel is only suitable for shaking and beating the ball ink casting pipes with nominal diameters DN 1100-DN 1400. The Y-shaped vibration beating wheel has small vibration beating force when vibrating and beating the ball ink casting pipe with the nominal diameter of DN 1600-DN 2600, the cement lining has low strength, the cement lining of the casting pipe can crack after centrifugation, and the problem of the cracking is solved by secondary centrifugation, thereby increasing the production cost.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a vibration beating wheel used in the process of coating cement on a cast tube, and aims to improve the strength of the cement lining of the cast tube.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a shake of cast tube lining cement in-process use is beaten the wheel, includes wheel hub and the pinch roller of being connected with wheel hub, pinch roller including being used for with cast tube contact and being the dogtooth of style of calligraphy, the dogtooth sets up a plurality of and all dogteeth and distributes for along circumference, the length direction of dogtooth is parallel with the axis of pinch roller.
At least 43 convex teeth are arranged.
The wheel hub is connected with the pinch roller through a fastener composed of a bolt and a nut, a damping block is sleeved on the bolt, and the damping block is clamped between the wheel hub and the pinch roller.
The damping block is made of rubber.
The fasteners are arranged in a plurality and all the fasteners are distributed along the circumferential direction.
The vibration beating wheel used in the cement lining process of the cast tube further comprises a shaft sleeve, and a first bearing and a second bearing which are arranged between the shaft sleeve and the hub.
The shaft sleeve is provided with a shaft shoulder which is used for limiting the first bearing and the second bearing in the axial direction, and the shaft shoulder is positioned between the first bearing and the second bearing.
The first bearings and the second bearings are all arranged in a plurality, and the number of the first bearings and the number of the second bearings are the same.
The vibration wheel used in the cement lining process of the cast tube has large vibration force, can improve the cement lining strength of the spherical graphite cast tube with nominal diameters DN 1600-DN 2600, reduce the lining cracking defect, improve the lining quality of the large-caliber cast tube, and reduce the production and manufacturing cost of enterprises.
Drawings
The present specification includes the following drawings, the contents of which are respectively:
FIG. 1 is a cross-sectional view of a jolt wheel used in the cementing process of the present invention for casting pipes;
FIG. 2 is a front view of a jolt wheel used in the cementing process of the present invention for casting pipes;
marked in the figure as: 1. a support shaft; 2. a shaft sleeve; 3. a shaft shoulder; 4. a first bearing; 5. a second bearing; 6. a first end cap; 7. a second end cap; 8. a damper block; 9. a bolt; 10. a nut; 11. a screw; 12. an outer rim; 13. an outer spoke; 14. a hub body; 15. convex teeth; 16. an inner spoke.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction between structures and/or functions, and do not represent a sequential order of execution, but are merely for convenience of description.
As shown in fig. 1 and 2, the invention provides a vibration beating wheel used in the cement lining process of a casting pipe, which comprises a wheel hub and a pressing wheel connected with the wheel hub, wherein the pressing wheel comprises a plurality of convex teeth 15 which are used for being in contact with the casting pipe and are in a straight shape, the convex teeth 15 are distributed along the circumferential direction, the length direction of the convex teeth 15 is parallel to the axis of the pressing wheel, and at least 43 convex teeth 15 are arranged.
Specifically, as shown in fig. 1 and 2, the hub and the pinch roller are connected by a fastener consisting of a bolt 9 and a nut 10, so that the pinch roller is convenient to disassemble and assemble from the hub, and the pinch roller is convenient to replace. The pinch roller still includes outer rim 12, and outer rim 12 is the ring-shaped structure, and tooth 15 sets up on the outer disc of outer rim 12 and tooth 15 towards the outside protrusion of outer rim 12, and outer rim 12 and wheel hub are coaxial setting, and all tooth 15 are evenly distributed along circumference on the outer disc of outer rim 12. In the process of coating cement on the cast tube, the cast tube rotates at a high speed, the vibration wheel is positioned above the cast tube, the vibration wheel is used for vibrating the cast tube, the convex teeth 15 of the vibration wheel are in contact with the outer circular surface of the cast tube, the vibration wheel is driven to rotate while the cast tube rotates, each convex tooth 15 of the vibration wheel can be in contact with the cast tube in sequence, the vibration effect is achieved, strong vibration force is generated, and the strength of cement on the cast tube lining is improved.
As shown in fig. 1 and 2, the hub and the pinch roller are provided with through holes for the bolts 9 to pass through, the axes of the bolts 9 are parallel to the axes of the hub and the pinch roller (namely, the axes of the outer rim 12), the shock-absorbing blocks 8 are sleeved on the bolts 9, the shock-absorbing blocks 8 are clamped between the hub and the pinch roller, and the shock-absorbing blocks 8 are made of rubber. The damping block 8 plays a damping role in the axial direction, so that the service life of the vibration beating wheel is prolonged, and noise is reduced.
As shown in fig. 1 and 2, the pressing wheel further includes an outer spoke 13 disposed in a central hole of the outer rim 12, the outer spoke 13 is in a circular structure, the outer spoke 13 is fixedly connected with an inner circular surface of the outer rim 12, the outer spoke 13 and the outer rim 12 are coaxially disposed, the thickness of the outer spoke 13 is smaller than the width of the outer rim 12 (the thickness direction of the outer spoke 13 is parallel to the width direction of the outer rim 12, the width direction of the outer rim 12 is axial), the outer spoke 13 is close to one end of the outer rim 12 in the width direction, the length of the protruding teeth 15 is the same as the width of the outer rim 12, two ends of the protruding teeth 15 are aligned with two ends of the outer rim 12 respectively, and the protruding teeth 15 are welded with the outer rim 12.
As shown in fig. 1 and 2, the pinch roller and the hub are both made of metal, the hub comprises a hub body 14 and an inner spoke 16 disposed on the hub body 14, the inner spoke 16 and the outer spoke 13 are disposed opposite to each other, the inner spoke 16 and the hub body 14 are disposed in a central hole of the outer rim 12, the inner diameter of the outer rim 12 is larger than the outer diameter of the inner spoke 16, the hub body 14 is in a circular ring structure, and the hub body 14 and the outer rim 12 are disposed coaxially (the axis of the hub body 14 is also the axis of the hub). The inner spoke 16 is of a circular ring structure, the inner spoke 16 is fixedly connected with the outer circular surface of the hub body 14, the inner spoke 16 extends towards the outer side of the hub body 14 along the radial direction, the inner spoke 16 is parallel to the outer spoke 13, the inner spoke 16 is connected with the outer spoke 13 through fasteners formed by bolts 9 and nuts 10, the inner spoke 16 and the outer spoke 13 are provided with through holes for the bolts 9 to pass through, the through holes on the inner spoke 16 and the outer spoke 13 are uniformly distributed along the circumferential direction, namely, the fasteners are uniformly distributed along the circumferential direction, and the connection reliability and the shock absorption effect are ensured.
As shown in fig. 1 and 2, the damper 8 is clamped between the inner spoke 16 and the outer spoke 13, the damper 8 is in a circular ring structure, the damper 8, the hub and the pinch roller are coaxially arranged, the inner diameter of the damper 8 is identical to the outer diameter of the hub body 14, the outer diameter of the damper 8 is larger than the outer diameter of the inner spoke 16 and smaller than the inner diameter of the outer rim 12, the inner circular surface of the damper 8 is attached to the outer circular surface of the hub body 14, and the opposite end surfaces of the damper 8 are attached to the inner spoke 16 and the outer spoke 13 respectively, and the damper 8 is provided with a through hole for a bolt 9 to pass through.
As shown in fig. 1 and 2, the jolt wheel used in the cement process of the cast tube of the present invention further comprises a sleeve 2, and a first bearing 4 and a second bearing 5 disposed between the sleeve 2 and the hub. The shake and beat the wheel and install on the swing arm through back shaft 1, the swing arm can swing from top to bottom, and on back shaft 1 was located to axle sleeve 2 cover, the outside diameter of axle sleeve 2 was less than the inside diameter of wheel hub body 14 and axle sleeve 2 and wheel hub were coaxial setting, were equipped with on the axle sleeve 2 and are used for playing the shaft shoulder 3 of spacing effect to first bearing 4 and second bearing 5 in the axial, and shaft shoulder 3 is located between first bearing 4 and second bearing 5. The shaft shoulder 3 is fixedly arranged at the middle position of the shaft sleeve 2 in the length direction, the shaft shoulder 3 is of a circular ring structure, the outer diameter of the shaft shoulder 3 is larger than that of the shaft sleeve 2, and the outer diameter of the shaft shoulder 3 is larger than the inner diameters of the inner rings of the first bearing 4 and the second bearing 5. The first bearing 4 and the second bearing 5 provide supporting function for the hub, the first bearing 4 and the second bearing 5 are sleeved on the shaft sleeve 2, and the hub body 14 is sleeved on the first bearing 4 and the second bearing 5, so that smooth rotation of the pinch roller and the hub is ensured.
As shown in fig. 1 and 2, the jolt wheel used in the cement lining process of the cast tube of the invention further comprises a first end cover 6 and a second end cover 7 sleeved on the shaft sleeve 2, wherein the first end cover 6 and the second end cover 7 are connected with the hub body 14 through screws 11, so that the hub body 14 is convenient to assemble and disassemble, and the screws 11 are inserted into the internally threaded holes. The hub body 14 is located between the first end cap 6 and the second end cap 7, the first end cap 6 is used for limiting the first bearing 4 in the axial direction, the first bearing 4 is located between the first end cap 6 and the shaft shoulder 3, the second end cap 7 is used for limiting the second bearing 5 in the axial direction, and the second bearing 5 is located between the second end cap 7 and the shaft shoulder 3, so that the hub and the shaft sleeve 2 are kept relatively fixed in the axial direction. The first bearings 4 and the second bearings 5 are all provided in plurality, the number of the first bearings 4 and the number of the second bearings 5 are the same, the first bearings 4 and the second bearings 5 are symmetrically arranged, and the first bearings 4 and the second bearings 5 are angular contact ball bearings.
As shown in fig. 1 and 2, in the present embodiment, two first bearings 4 and two second bearings 5 are provided, and the first bearings 4 and the second bearings 5 are mounted in a face-to-face manner.
In this example, the casting tube is a ductile cast tube with nominal diameters DN 1600-DN 2600 and a wall thickness of 16mm or more.
In this embodiment, as shown in fig. 1 and 2, there are 43 teeth 15 on the pinch roller and 16 fasteners.
The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.
Claims (6)
1. The shake of cast tube lining cement in-process use is beaten wheel, its characterized in that: the device comprises a hub and a pressing wheel connected with the hub, wherein the pressing wheel comprises a plurality of convex teeth which are used for being in contact with a cast tube and are in a straight shape, the convex teeth are distributed along the circumferential direction, and the length direction of the convex teeth is parallel to the axis of the pressing wheel;
the pinch roller also comprises an outer rim, the outer rim is of a circular ring structure, the convex teeth are arranged on the outer circular surface of the outer rim and protrude towards the outer side of the outer rim, the outer rim and the hub are coaxially arranged, and all the convex teeth are uniformly distributed on the outer circular surface of the outer rim along the circumferential direction;
in the process of coating cement on the cast tube, the cast tube rotates at a high speed, the vibration wheel is positioned above the cast tube, the vibration wheel vibrates the cast tube, the convex teeth of the vibration wheel are contacted with the outer circular surface of the cast tube, the cast tube rotates and drives the vibration wheel to rotate, and each convex tooth of the vibration wheel can be sequentially contacted with the cast tube to play a vibration role;
the hub and the pinch roller are connected through a fastener consisting of a bolt and a nut; the wheel hub and the pinch roller are provided with through holes for the bolts to pass through, the axes of the bolts are parallel to the axes of the wheel hub and the pinch roller, the bolts are sleeved with damping blocks, the damping blocks are clamped between the wheel hub and the pinch roller, and the damping blocks are made of rubber;
the pressing wheel further comprises an outer spoke arranged in a central hole of the outer rim, the outer spoke is of a circular ring structure and is fixedly connected with the inner circular surface of the outer rim, the outer spoke and the outer rim are coaxially arranged, the thickness of the outer spoke is smaller than the width of the outer rim, the outer spoke is close to one end of the outer rim in the width direction, the length of each convex tooth is the same as the width of the outer rim, the two ends of each convex tooth are respectively aligned with the two ends of the outer rim, and the convex teeth are welded and connected with the outer rim;
the pinch roller and the hub are both made of metal, the hub comprises a hub body and an inner spoke arranged on the hub body, the inner spoke and the outer spoke are oppositely arranged, the inner spoke and the hub body are positioned in a central hole of an outer rim, the inner diameter of the outer rim is larger than the outer diameter of the inner spoke, the hub body is of a circular ring structure, and the hub body and the outer rim are coaxially arranged;
the inner spoke is of a circular ring structure, the inner spoke is fixedly connected with the outer circular surface of the hub body, the inner spoke extends towards the outer side of the hub body along the radial direction, the inner spoke is parallel to the outer spoke, the inner spoke is connected with the outer spoke through a fastener formed by bolts and nuts, the inner spoke and the outer spoke are provided with through holes for the bolts to pass through, the through holes on the inner spoke and the outer spoke are multiple, the through holes on the inner spoke and the outer spoke are uniformly distributed along the circumferential direction, namely the fastener is multiple, and all the fasteners are distributed along the circumferential direction;
the damping block is clamped between the inner spoke and the outer spoke, the damping block is of a circular ring structure, the damping block, the hub and the pinch roller are coaxially arranged, the inner diameter of the damping block is the same as the outer diameter of the hub body, the outer diameter of the damping block is larger than the outer diameter of the inner spoke and smaller than the inner diameter of the outer rim, the inner circular surface of the damping block is attached to the outer circular surface of the hub body, the two opposite end surfaces of the damping block are attached to the inner spoke and the outer spoke respectively, and the damping block is provided with a through hole for a bolt to pass through;
the vibration beating wheel used in the cement lining process of the cast tube further comprises a shaft sleeve, and a first bearing and a second bearing which are arranged between the shaft sleeve and the hub;
the shaft sleeve is provided with a shaft shoulder which is used for limiting the first bearing and the second bearing in the axial direction, and the shaft shoulder is positioned between the first bearing and the second bearing.
2. A jolt wheel for use in a cast tube cementing process as claimed in claim 1, wherein: at least 43 convex teeth are arranged.
3. A jolt wheel for use in a cast tube cementing process as claimed in claim 1, wherein: the wheel hub is connected with the pinch roller through a fastener composed of a bolt and a nut, a damping block is sleeved on the bolt, and the damping block is clamped between the wheel hub and the pinch roller.
4. A jolt wheel for use in a cast tube cementing process as claimed in claim 3, wherein: the damping block is made of rubber.
5. A jolt wheel for use in a cast tube cementing process according to claim 3 or 4, wherein: the fasteners are arranged in a plurality and all the fasteners are distributed along the circumferential direction.
6. A jolt wheel for use in a cast tube cementing process as claimed in claim 1, wherein: the first bearings and the second bearings are all arranged in a plurality, and the number of the first bearings and the number of the second bearings are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303886.XA CN110000918B (en) | 2019-04-16 | 2019-04-16 | Vibration beating wheel used in cement coating process of cast tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303886.XA CN110000918B (en) | 2019-04-16 | 2019-04-16 | Vibration beating wheel used in cement coating process of cast tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110000918A CN110000918A (en) | 2019-07-12 |
| CN110000918B true CN110000918B (en) | 2024-04-12 |
Family
ID=67172190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910303886.XA Active CN110000918B (en) | 2019-04-16 | 2019-04-16 | Vibration beating wheel used in cement coating process of cast tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110000918B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB390976A (en) * | 1931-07-23 | 1933-04-20 | William Taren Tate | Improved apparatus for lining pipes with cementitious material |
| JPH08174533A (en) * | 1994-09-17 | 1996-07-09 | Parmar Co Ltd | Vibration pressure roller for producing high-strength concrete pipe,driver thereof,and driving method thereof |
| CN203438356U (en) * | 2013-09-13 | 2014-02-19 | 新兴铸管股份有限公司 | Centrifugation nodular cast iron pipe cement smearing lining device |
| CN104260196A (en) * | 2014-08-27 | 2015-01-07 | 山东球墨铸铁管有限公司 | Ductile iron pipe inner lining holding roller |
| CN108656338A (en) * | 2018-04-20 | 2018-10-16 | 浙江深澳机械工程有限公司 | A kind of pipe fitting liner systems and its lining method |
| CN108890871A (en) * | 2018-08-16 | 2018-11-27 | 广东新兴铸管有限公司 | Molding machine in a kind of ductile iron pipe cement |
| CN208277156U (en) * | 2018-04-20 | 2018-12-25 | 浙江深澳机械工程有限公司 | Produce the pinch roller on the gallus-type cement lining machine of ductile iron pipe |
| CN210256686U (en) * | 2019-04-16 | 2020-04-07 | 芜湖新兴铸管有限责任公司 | Vibration beating wheel used in process of coating lining cement on cast pipe |
-
2019
- 2019-04-16 CN CN201910303886.XA patent/CN110000918B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB390976A (en) * | 1931-07-23 | 1933-04-20 | William Taren Tate | Improved apparatus for lining pipes with cementitious material |
| JPH08174533A (en) * | 1994-09-17 | 1996-07-09 | Parmar Co Ltd | Vibration pressure roller for producing high-strength concrete pipe,driver thereof,and driving method thereof |
| CN203438356U (en) * | 2013-09-13 | 2014-02-19 | 新兴铸管股份有限公司 | Centrifugation nodular cast iron pipe cement smearing lining device |
| CN104260196A (en) * | 2014-08-27 | 2015-01-07 | 山东球墨铸铁管有限公司 | Ductile iron pipe inner lining holding roller |
| CN108656338A (en) * | 2018-04-20 | 2018-10-16 | 浙江深澳机械工程有限公司 | A kind of pipe fitting liner systems and its lining method |
| CN208277156U (en) * | 2018-04-20 | 2018-12-25 | 浙江深澳机械工程有限公司 | Produce the pinch roller on the gallus-type cement lining machine of ductile iron pipe |
| CN108890871A (en) * | 2018-08-16 | 2018-11-27 | 广东新兴铸管有限公司 | Molding machine in a kind of ductile iron pipe cement |
| CN210256686U (en) * | 2019-04-16 | 2020-04-07 | 芜湖新兴铸管有限责任公司 | Vibration beating wheel used in process of coating lining cement on cast pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110000918A (en) | 2019-07-12 |
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