CN207170514U - A kind of hard alloy composite roll - Google Patents
A kind of hard alloy composite roll Download PDFInfo
- Publication number
- CN207170514U CN207170514U CN201721145417.2U CN201721145417U CN207170514U CN 207170514 U CN207170514 U CN 207170514U CN 201721145417 U CN201721145417 U CN 201721145417U CN 207170514 U CN207170514 U CN 207170514U
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- CN
- China
- Prior art keywords
- roll
- shaft shoulder
- shaft
- ring
- carbide
- 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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Abstract
The utility model discloses a kind of hard alloy composite roll, including roll shaft, carbide roll ring, locking nut and clamp nut, the carbide roll ring is set on roll shaft, one end of the roll shaft is provided with the shaft shoulder, the diameter of the shaft shoulder is less than the external diameter of carbide roll ring, piston is provided between carbide roll ring and the shaft shoulder, oiling chamber is formed between piston and the shaft shoulder end face, oil filler point in the axial direction is provided with the shaft shoulder, the oil filler point communicates with oiling chamber, the locking nut is additionally provided with the perisporium of the shaft shoulder, the clamp nut is arranged on the other end of roll shaft.The utility model has the advantages that：Clamp nut and locking nut, piston are separately positioned on to the both ends of roll shaft, and oil filler point is opened on the shaft shoulder, its pressure that can be born improve, also implying that the pretightning force of offer will greatly improve, ensure carbide roll ring using when validity be increased dramatically.
Description
Technical field
It the utility model is related to a kind of hard alloy composite roll.
Background technology
Hard alloy composite roll is mainly used on high-speed wire finish-rolling and pre-finishing mill, as shown in figure 1, the one of roll shaft 1
End is provided with the shaft shoulder 5, and carbide roll ring 2 is set on roll shaft 1, and the ring of hard alloy roller 1 withstands the shaft shoulder 5, the diameter of the shaft shoulder 5 with firmly
Matter alloy 1 external diameter of collars is almost big, in order to lock carbide roll ring, a clamp nut on the other end of roll shaft first covers
4, clamp nut 4 is provided with piston 6 and locking nut 3, by opening oil filler point 8 on clamp nut, promotes piston to shaft shoulder direction
It is mobile, enough pretightning forces are then being provided by locking nut screwing, but have screw thread for clamp nut, its inner ring, its
Also there is screw thread outer ring, causes the wall thickness of clamp nut relatively thin, it is impossible to bears sufficiently high pressure, the pretightning force for causing it to provide
It is limited.
Utility model content
The purpose of this utility model is to provide a kind of hard alloy composite roll, can effectively solve the problem that existing hard alloy is answered
The problem of pretightning force of conjunction roller is limited.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：A kind of hard alloy
Composite roll, including roll shaft, carbide roll ring, locking nut and clamp nut, the carbide roll ring are set on roll shaft,
One end of the roll shaft is provided with the shaft shoulder, and the diameter of the shaft shoulder is less than the external diameter of carbide roll ring, carbide roll ring and the shaft shoulder it
Between be provided with piston, oiling chamber is formed between piston and the shaft shoulder end face, oil filler point in the axial direction is provided with the shaft shoulder,
The oil filler point is communicated with oiling chamber, and the locking nut is additionally provided with the perisporium of the shaft shoulder, and the clamp nut is arranged on
The other end of roll shaft.
Preferably, the piston includes minor diameter part and large-diameter portion, and the external diameter of the minor diameter part and large-diameter portion is equal, described small
The inner peripheral surface in footpath portion coordinates with the sealing of roll peripheral face, and the outer circumference surface sealing of the inner peripheral surface and the shaft shoulder of the large-diameter portion is matched somebody with somebody
Close；The end face of minor diameter part, the inner peripheral surface of large-diameter portion, the shaft shoulder surround oiling towards the end face of minor diameter part and roll shaft outer circle wall
Chamber, it is easy to the movement of piston after oiling.
Preferably, the inner peripheral surface of the minor diameter part is provided with first annular seal groove circumferentially, described first annular
Sealing ring is provided with seal groove；Ensure the sealing of minor diameter part and roll shaft.
Preferably, the second axially disposed annular seal groove, second ring are provided with the outer circumference surface of the shaft shoulder
Sealing ring is provided with shape seal groove；Improve the sealing between large-diameter portion and the shaft shoulder.
Compared with prior art, the utility model has the advantages that：Clamp nut and locking nut, piston are separately positioned on
The both ends of roll shaft, and oil filler point is opened on the shaft shoulder, because the shaft shoulder and roll shaft are integrally manufactured, and the shaft shoulder only has outer circle wall
Need to set the screw thread coordinated with locking nut, so opening up oil filler point on clamp nut relative to tradition, it can bear
Pressure improve, also implying that the pretightning force of offer will greatly improve, ensure carbide roll ring using when validity obtain
To being substantially improved.
Brief description of the drawings
Fig. 1 is a kind of existing structural representation of hard alloy composite roll；
Fig. 2 is a kind of structural representation of hard alloy composite roll of the utility model；
Fig. 3 is the structural representation that piston, locking nut and the shaft shoulder coordinate in the utility model.
Embodiment
It is a kind of embodiment of hard alloy composite roll of the utility model refering to Fig. 2, Fig. 3, a kind of hard alloy composite roll,
Including roll shaft 1, carbide roll ring 2, locking nut 3 and clamp nut 4, the carbide roll ring 2 is set on roll shaft 1,
One end of the roll shaft 1 is provided with the shaft shoulder 5, and the diameter of the shaft shoulder 5 is less than the external diameter of carbide roll ring 2, carbide roll ring 2 and axle
Piston 6 is provided between shoulder 5, oiling chamber 7 is formed between piston 6 and the shaft shoulder 5 end face, is provided with the shaft shoulder 5 along axis side
To oil filler point 8, the oil filler point 8 communicated with oiling chamber 7, and the locking nut 3, institute are additionally provided with the perisporium of the shaft shoulder 5
State the other end that clamp nut 4 is arranged on roll shaft 1.Clamp nut 4 and locking nut 3, piston are separately positioned on the two of roll shaft 1
End, and oil filler point 8 is opened on the shaft shoulder 5, because the shaft shoulder 5 and roll shaft 1 are integrally manufactured, and the shaft shoulder 5 only has outer circle wall to need
The screw thread coordinated with locking nut 3 is set, so opening up oil filler point 8 on clamp nut 4 relative to tradition, it can bear
Pressure improve, also implying that the pretightning force of offer will greatly improve, ensure carbide roll ring 2 use when validity obtain
To being substantially improved.
In order to preferably form oiling chamber 7, the piston 6 includes minor diameter part 9 and large-diameter portion 10, the minor diameter part 9 and big
The external diameter in footpath portion 10 is equal, and the inner peripheral surface of the minor diameter part 9 coordinates with the sealing of the periphery of roll shaft 1, the large-diameter portion 10 it is interior
The outer circumference surface sealing of periphery and the shaft shoulder 5 coordinates, thus by the end face of minor diameter part 9, the inner peripheral surface of large-diameter portion 10, the shaft shoulder
5 surround oiling chamber 7 towards the end face of minor diameter part 9 and the outer circle wall of roll shaft 1, are easy to the movement of piston after oiling.
The sealing of piston and roll shaft 1 and the shaft shoulder 5 is further improved, the inner peripheral surface of the minor diameter part 9 was provided with along week
To first annular seal groove 11, is provided with sealing ring in the first annular seal groove 11, is opened on the outer circumference surface of the shaft shoulder 5
There is the second axially disposed annular seal groove 12, sealing ring is provided with second annular seal groove 12.Certain second annular
Seal groove 12 can also be opened on the inner peripheral wall of large-diameter portion 10.
In use, piston first is inserted in into roll shaft 1, carbide roll ring 2 and spacer ring are being inserted in successively, is finally screwing on fastening spiral shell
Mother 4, then opens up injection hydraulic oil by the oil filler point 8 on the shaft shoulder 5, piston is pushed away toward the direction of clamp nut 4, enough when getting to
After pressure, the position of piston is fixed by locking nut 3, sealed oil-filling hole 8, ensures that collars there are enough pretightning forces.
Specific embodiment of the utility model is the foregoing is only, but the technical characteristics of the utility model is not limited to
This, any those skilled in the art in field of the present utility model, all cover in this practicality newly by the change or modification made
Among the scope of the claims of type.
Claims (4)
1. a kind of hard alloy composite roll, including roll shaft (1), carbide roll ring (2), locking nut (3) and clamp nut
(4), the carbide roll ring (2) is set on roll shaft (1), it is characterised in that：One end of the roll shaft (1) is provided with the shaft shoulder
(5), the diameter of the shaft shoulder (5) is less than the external diameter of carbide roll ring (2), is provided with and lives between carbide roll ring (2) and the shaft shoulder (5)
Fill in (6), oiling chamber (7) is formed between the piston (6) and the shaft shoulder (5) end face, is provided with the axial direction on the shaft shoulder (5)
Oil filler point (8), the oil filler point (8) are communicated with oiling chamber (7), and the locking nut is additionally provided with the perisporium of the shaft shoulder (5)
(3), the clamp nut (4) is arranged on the other end of roll shaft (1).
A kind of 2. hard alloy composite roll as claimed in claim 1, it is characterised in that：The piston (6) includes minor diameter part (9)
With large-diameter portion (10), the external diameter of the minor diameter part (9) and large-diameter portion (10) is equal, the inner peripheral surface and roller of the minor diameter part (9)
The sealing of axle (1) periphery coordinates, and the inner peripheral surface of the large-diameter portion (10) coordinates with the outer circumference surface sealing of the shaft shoulder (5).
A kind of 3. hard alloy composite roll as claimed in claim 2, it is characterised in that：The inner peripheral surface of the minor diameter part (9)
First annular seal groove (11) circumferentially is provided with, sealing ring is provided with the first annular seal groove (11).
A kind of 4. hard alloy composite roll as claimed in claim 1, it is characterised in that：On the outer circumference surface of the shaft shoulder (5)
Axially disposed the second annular seal groove (12) is provided with, sealing ring is provided with second annular seal groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721145417.2U CN207170514U (en) | 2017-09-07 | 2017-09-07 | A kind of hard alloy composite roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721145417.2U CN207170514U (en) | 2017-09-07 | 2017-09-07 | A kind of hard alloy composite roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207170514U true CN207170514U (en) | 2018-04-03 |
Family
ID=61743266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721145417.2U Active CN207170514U (en) | 2017-09-07 | 2017-09-07 | A kind of hard alloy composite roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207170514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639117A (en) * | 2017-09-07 | 2018-01-30 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll |
-
2017
- 2017-09-07 CN CN201721145417.2U patent/CN207170514U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639117A (en) * | 2017-09-07 | 2018-01-30 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll |
| CN107639117B (en) * | 2017-09-07 | 2024-04-30 | 浙江恒成硬质合金有限公司 | Hard alloy composite roller |
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| GR01 | Patent grant |