CN107639117B - Hard alloy composite roller - Google Patents
Hard alloy composite roller Download PDFInfo
- Publication number
- CN107639117B CN107639117B CN201710801251.3A CN201710801251A CN107639117B CN 107639117 B CN107639117 B CN 107639117B CN 201710801251 A CN201710801251 A CN 201710801251A CN 107639117 B CN107639117 B CN 107639117B
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- Prior art keywords
- shaft shoulder
- shaft
- roller
- hard alloy
- piston
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- 239000000956 alloy Substances 0.000 title claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 24
- 239000003921 oil Substances 0.000 description 19
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a hard alloy composite roller, which comprises a roller shaft, a hard alloy roller ring, a lock nut and a fastening nut, wherein the hard alloy roller ring is sleeved on the roller shaft, one end of the roller shaft is provided with a shaft shoulder, the diameter of the shaft shoulder is smaller than the outer diameter of the hard alloy roller ring, a piston is arranged between the hard alloy roller ring and the shaft shoulder, an oil injection cavity is formed between the piston and the end face of the shaft shoulder, the shaft shoulder is provided with an oil injection hole along the axial direction, the oil injection hole is communicated with the oil injection cavity, the peripheral wall of the shaft shoulder is also provided with the lock nut, and the fastening nut is arranged at the other end of the roller shaft. The invention has the advantages that: the fastening nut, the locking nut and the piston are respectively arranged at two ends of the roll shaft, the oil filling hole is formed in the shaft shoulder, the bearable pressure is improved, the provided pretightening force is greatly improved, and the effectiveness of the hard alloy roll collar in use is greatly improved.
Description
Technical Field
The invention relates to a hard alloy composite roller.
Background
The hard alloy composite roller is mainly used on a high-speed wire rod finish rolling and pre-finishing mill, as shown in fig. 1, a shaft shoulder 5 is arranged at one end of a roller shaft 1, a hard alloy roller ring 2 is sleeved on the roller shaft 1, the hard alloy roller 1 ring props against the shaft shoulder 5, the diameter of the shaft shoulder 5 is almost equal to the outer diameter of the hard alloy roller ring 1, a fastening nut 4 is sleeved at the other end of the roller shaft for locking the hard alloy roller ring, a piston 6 and a locking nut 3 are arranged on the fastening nut 4, an oil filling hole 8 is formed in the fastening nut, the piston is pushed to move towards the shaft shoulder, and then enough pre-tightening force is provided by tightening the locking nut, but for the fastening nut, the inner ring of the fastening nut is threaded, the outer ring of the fastening nut is threaded, so that the wall thickness of the fastening nut is thinner and cannot bear enough high pressure, and the pre-tightening force provided by the fastening nut is limited.
Disclosure of Invention
The invention aims to provide a hard alloy composite roller, which can effectively solve the problem that the pretightening force of the existing hard alloy composite roller is limited.
In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides a carbide composite roll, includes roller, carbide collar, lock nut and fastening nut, carbide collar cover is established on the roller, the one end of roller is equipped with the shoulder, and the diameter of shoulder is less than the external diameter of carbide collar, is equipped with the piston between carbide collar and the shoulder, form the oil filling chamber between piston and the shoulder terminal surface, it has the oil filler point along axis direction to open on the shoulder, the oil filler point communicates with each other with the oil filling chamber, still be equipped with on the perisporium of shoulder lock nut, fastening nut sets up the other end at the roller.
Preferably, the piston comprises a small-diameter part and a large-diameter part, the outer diameters of the small-diameter part and the large-diameter part are equal, the inner circumferential surface of the small-diameter part is in sealing fit with the circumferential surface of the roll shaft, and the inner circumferential surface of the large-diameter part is in sealing fit with the outer circumferential surface of the shaft shoulder; the end face of the small diameter part, the inner circumferential face of the large diameter part, the end face of the shaft shoulder facing the small diameter part and the outer circumferential wall of the roll shaft enclose an oil injection cavity, and the movement of the piston after oil injection is facilitated.
Preferably, a first annular sealing groove along the circumferential direction is formed in the inner circumferential surface of the small-diameter part, and a sealing ring is arranged in the first annular sealing groove; the tightness of the small diameter part and the roll shaft is ensured.
Preferably, a second annular sealing groove is formed in the outer circumferential surface of the shaft shoulder and is axially arranged, and a sealing ring is arranged in the second annular sealing groove; the tightness between the large diameter part and the shaft shoulder is improved.
Compared with the prior art, the invention has the advantages that: the fastening nut, the lock nut and the piston are respectively arranged at two ends of the roll shaft, the oil filling hole is formed in the shaft shoulder, and the shaft shoulder and the roll shaft are integrally manufactured, and only the outer circumferential wall of the shaft shoulder is required to be provided with threads matched with the lock nut, so that compared with the traditional method of forming the oil filling hole on the fastening nut, the pressure which can be born by the fastening nut is improved, the provided pretightening force is greatly improved, and the effectiveness of the hard alloy roll collar in use is greatly improved.
Drawings
FIG. 1 is a schematic view of a conventional hard alloy composite roll;
FIG. 2 is a schematic view of a hard alloy composite roll according to the present invention;
FIG. 3 is a schematic view of the piston, lock nut and shoulder assembly of the present invention.
Detailed Description
Referring to fig. 2 and 3, an embodiment of a cemented carbide composite roller according to the present invention includes a roller shaft 1, a cemented carbide roller ring 2, a lock nut 3 and a fastening nut 4, wherein the cemented carbide roller ring 2 is sleeved on the roller shaft 1, one end of the roller shaft 1 is provided with a shaft shoulder 5, the diameter of the shaft shoulder 5 is smaller than the outer diameter of the cemented carbide roller ring 2, a piston 6 is disposed between the cemented carbide roller ring 2 and the shaft shoulder 5, an oil injection cavity 7 is formed between the piston 6 and the end surface of the shaft shoulder 5, an oil injection hole 8 along the axial direction is opened on the shaft shoulder 5, the oil injection hole 8 is communicated with the oil injection cavity 7, the lock nut 3 is further disposed on the peripheral wall of the shaft shoulder 5, and the fastening nut 4 is disposed at the other end of the roller shaft 1. The fastening nut 4, the lock nut 3 and the piston are respectively arranged at two ends of the roll shaft 1, the oil hole 8 is formed in the shaft shoulder 5, and as the shaft shoulder 5 and the roll shaft 1 are integrally manufactured and only the outer circumferential wall of the shaft shoulder 5 is required to be provided with threads matched with the lock nut 3, compared with the traditional method of forming the oil hole 8 on the fastening nut 4, the bearing pressure of the fastening nut is improved, which means that the provided pretightening force is greatly improved, and the effectiveness of the hard alloy roll collar 2 in use is greatly improved.
For better formation oil filling chamber 7, piston 6 includes path portion 9 and big footpath portion 10, path portion 9 and big footpath portion 10's external diameter equals, path portion 9's inner circumference and roller 1 circumference sealing fit, big footpath portion 10's inner circumference and shoulder 5's outer circumference sealing fit just so by path portion 9's terminal surface, path portion 10's inner circumference, shoulder 5 towards path portion 9's terminal surface and roller 1 outer circumference wall enclose into oil filling chamber 7, the removal of piston after the oiling of being convenient for.
The tightness of the piston, the roll shaft 1 and the shaft shoulder 5 is further improved, a first annular sealing groove 11 is formed in the inner circumferential surface of the small-diameter portion 9 along the circumferential direction, a sealing ring is arranged in the first annular sealing groove 11, a second annular sealing groove 12 is formed in the outer circumferential surface of the shaft shoulder 5 along the axial direction, and a sealing ring is arranged in the second annular sealing groove 12. Of course, the second annular seal groove 12 may be formed in the inner circumferential wall of the large diameter portion 10.
When the hydraulic cylinder is used, the piston is sleeved into the roll shaft 1, the hard alloy roll collar 2 and the spacer ring are sleeved in sequence, the fastening nut 4 is screwed in, hydraulic oil is injected into the hydraulic cylinder through the oil injection hole 8 on the shaft shoulder 5, the piston is pushed towards the direction of the fastening nut 4, after enough pressure is applied, the position of the piston is fixed through the locking nut 3, the oil injection hole 8 is closed, and the roll collar is ensured to have enough pretightening force.
The above embodiments are merely illustrative embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present invention are included in the scope of the present invention.
Claims (2)
1. The utility model provides a carbide composite roll, includes roller (1), carbide collar (2), lock nut (3) and fastening nut (4), carbide collar (2) cover is established on roller (1), its characterized in that: one end of the roll shaft (1) is provided with a shaft shoulder (5), the diameter of the shaft shoulder (5) is smaller than the outer diameter of the hard alloy roll collar (2), a piston (6) is arranged between the hard alloy roll collar (2) and the shaft shoulder (5), an oil injection cavity (7) is formed between the piston (6) and the end face of the shaft shoulder (5), an oil injection hole (8) along the axial direction is formed in the shaft shoulder (5), the oil injection hole (8) is communicated with the oil injection cavity (7), the locking nut (3) is further arranged on the peripheral wall of the shaft shoulder (5), and the fastening nut (4) is arranged at the other end of the roll shaft (1);
the piston (6) comprises a small-diameter part (9) and a large-diameter part (10), the outer diameters of the small-diameter part (9) and the large-diameter part (10) are equal, the inner circumferential surface of the small-diameter part (9) is in sealing fit with the circumferential surface of the roll shaft (1), and the inner circumferential surface of the large-diameter part (10) is in sealing fit with the outer circumferential surface of the shaft shoulder (5);
The outer circumferential surface of the shaft shoulder (5) is provided with a second annular sealing groove (12) which is axially arranged, and a sealing ring is arranged in the second annular sealing groove (12).
2. A cemented carbide composite roll according to claim 1, wherein: the inner circumferential surface of the small-diameter part (9) is provided with a first annular sealing groove (11) along the circumferential direction, and a sealing ring is arranged in the first annular sealing groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801251.3A CN107639117B (en) | 2017-09-07 | 2017-09-07 | Hard alloy composite roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801251.3A CN107639117B (en) | 2017-09-07 | 2017-09-07 | Hard alloy composite roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107639117A CN107639117A (en) | 2018-01-30 |
| CN107639117B true CN107639117B (en) | 2024-04-30 |
Family
ID=61111124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710801251.3A Active CN107639117B (en) | 2017-09-07 | 2017-09-07 | Hard alloy composite roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107639117B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3114851A1 (en) * | 1981-04-09 | 1983-05-05 | Mannesmann AG, 4000 Düsseldorf | "WORK OR RETURN ROLLER" |
| JPH11151509A (en) * | 1997-11-17 | 1999-06-08 | Sumitomo Electric Ind Ltd | Sleeve roll for rolling |
| JP2001314906A (en) * | 2000-02-22 | 2001-11-13 | Sumitomo Electric Ind Ltd | Sleeve roll for rolling and its assembly method |
| CN2621844Y (en) * | 2003-05-20 | 2004-06-30 | 戎庆南 | Combined roller appts. |
| CN102847716A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Composite hard alloy roller |
| CN105834253A (en) * | 2016-06-12 | 2016-08-10 | 马鞍山安麦创新技术有限公司 | Prestress locking mechanism of combined roll collar of section steel straightening machine |
| JP2016185557A (en) * | 2015-03-27 | 2016-10-27 | 三菱マテリアル株式会社 | Mill roll |
| CN207170514U (en) * | 2017-09-07 | 2018-04-03 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll |
-
2017
- 2017-09-07 CN CN201710801251.3A patent/CN107639117B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3114851A1 (en) * | 1981-04-09 | 1983-05-05 | Mannesmann AG, 4000 Düsseldorf | "WORK OR RETURN ROLLER" |
| JPH11151509A (en) * | 1997-11-17 | 1999-06-08 | Sumitomo Electric Ind Ltd | Sleeve roll for rolling |
| JP2001314906A (en) * | 2000-02-22 | 2001-11-13 | Sumitomo Electric Ind Ltd | Sleeve roll for rolling and its assembly method |
| CN2621844Y (en) * | 2003-05-20 | 2004-06-30 | 戎庆南 | Combined roller appts. |
| CN102847716A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Composite hard alloy roller |
| JP2016185557A (en) * | 2015-03-27 | 2016-10-27 | 三菱マテリアル株式会社 | Mill roll |
| CN105834253A (en) * | 2016-06-12 | 2016-08-10 | 马鞍山安麦创新技术有限公司 | Prestress locking mechanism of combined roll collar of section steel straightening machine |
| CN207170514U (en) * | 2017-09-07 | 2018-04-03 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107639117A (en) | 2018-01-30 |
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