CN202667252U - Composite hard alloy roll - Google Patents
Composite hard alloy roll Download PDFInfo
- Publication number
- CN202667252U CN202667252U CN 201220405373 CN201220405373U CN202667252U CN 202667252 U CN202667252 U CN 202667252U CN 201220405373 CN201220405373 CN 201220405373 CN 201220405373 U CN201220405373 U CN 201220405373U CN 202667252 U CN202667252 U CN 202667252U
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- CN
- China
- Prior art keywords
- roll
- hard alloy
- rings
- roll shaft
- ring
- 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.)
- Expired - Lifetime
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model discloses a composite hard alloy roll which comprises a roll shaft, wherein at least two groups of hard alloy roll rings that are in interference fit with the roll shaft are arranged on the roll shaft in a sleeving manner; a spacer ring is arranged between every two adjacent hard alloy roll rings; a step for stopping the hard alloy roll rings is arranged at one end of the roll shaft; and a lock nut for fixing the hard alloy roll rings is arranged at the other end of the roll shaft. The composite hard alloy roll has the advantages that the hard alloy roll rings and the spacer rings are in interference fit with the roll shaft, so that the radial directions of the hard alloy roll rings are stabilized; and one end of each hard alloy roll ring is fixed by the step of the roll shaft, and the other end of each hard alloy roll ring is fixed by the lock nut, so that the axial directions of the hard alloy roll rings are stabilized, and the hard alloy roll rings can be firmly fixed on the roll shaft. The composite hard alloy roll is simple in structure and convenient to assemble; connecting modes such as glue or welding are avoided; manufacturing procedures are decreased; the production efficiency is improved; and the failure probability of a product is reduced.
Description
Technical field
The utility model relates to a kind of composite hard alloy roll.
Background technology
Roll is wanted the consumption in operation part as rolling mill main, and product quality, production efficiency etc. is all had direct impact.The advantages such as single groove steel transportation amount is high because having for hard alloy roll, negative common difference precise control, product surface quality are good, having become wire rod rolls face, especially high-speed rod-rolling mill finish rolling, pre-finish rolling, in the main roll material that rolls.
The every reconditioning of hard alloy combined type mill roll once, single groove steel transportation amount reaches more than 800 ~ 1200 tons, is 10 times of nodular cast iron roller.And hard alloy composite roll can increase the reconditioning number of times, and collars axle etc. can be repeatedly used.The benefit advantage is very outstanding, and the steel surface smoothness that shuts out is good.
Present composite ring all adopts the alloy collars is bonded on the roll shaft, but in the Practical manufacturing process, bonding unstable problem easily appears, thereby affect the quality of product, and this mode is also inapplicable to the composite roll that adopts two joints and above alloy collars, adopts simultaneously the mode of welding also can't operate between two joint collars.
The utility model content
The purpose of this utility model is to provide a kind of composite hard alloy roll, can effectively solve existing alloy collars be connected with roll shaft insecure, the problem that easily gets loose and cause life of product to descend.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of composite hard alloy roll, comprise roll shaft, cover has the carbide roll ring of at least two groups and roll shaft interference fit on the described roll shaft, be provided with spacer ring between the described adjacent carbide roll ring, one end of described roll shaft is provided with the step that stops carbide roll ring, and the other end of described roll shaft is provided with the fixedly locking nut of carbide roll ring.
Preferably, the diameter of described spacer ring is less than the diameter of carbide roll ring; Do not affect the work of alloy collars, improve spacer ring service life.
Preferably, the diameter of described locking nut is less than the diameter of carbide roll ring; Roll in the course of the work locking nut can not get loose.
Compared with prior art, the utility model has the advantages that: alloy collars and spacer ring all adopt the placement of interference fit to cooperate with roll shaft, thereby stable firmly collars radially, one end is fixed by the roll shaft step, the other end is fixed by locking nut, thereby stable firmly collars is axial, so just the alloy collars firmly can be fixed on the roll shaft.This apparatus structure is simple, and is easy to assembly, avoids using the connected modes such as glue or welding, reduces manufacturing procedure, enhances productivity, and reduces the product bug probability.
Description of drawings
Fig. 1 is a kind of structural representation that meets hard alloy roll of the utility model.
The specific embodiment
Consult the embodiment of a kind of composite hard alloy roll of Fig. 1, a kind of composite hard alloy roll, comprise roll shaft 1, cover has the carbide roll ring 2 of at least two groups and roll shaft 1 interference fit on the described roll shaft 1, be provided with spacer ring 3 between the described adjacent carbide roll ring 2, one end of described roll shaft 1 is provided with the step 5 that stops carbide roll ring 2, the other end of described roll shaft 1 is provided with the fixedly locking nut 4 of carbide roll ring 2, the diameter of described spacer ring 3 is less than the diameter of carbide roll ring 2, and the diameter of described locking nut 4 is less than the diameter of carbide roll ring 2.
Alloy collars and spacer ring 3 all adopt the placement of interference fit to cooperate with roll shaft 1, thereby stable firmly collars radially, and an end is fixing by roll shaft 1 step 5, and the other end is fixing by locking nut 4, thereby stable firmly collars is axial, so just the alloy collars firmly can be fixed on the roll shaft 1.This apparatus structure is simple, and is easy to assembly, avoids using the connected modes such as glue or welding, reduces manufacturing procedure, enhances productivity, and reduces the product bug probability.
The above only is specific embodiment of the utility model, but technical characterictic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the claim of the present utility model.
Claims (3)
1. composite hard alloy roll, comprise roll shaft (1), it is characterized in that: the upper cover of described roll shaft (1) has the carbide roll ring (2) of at least two groups and roll shaft (1) interference fit, be provided with spacer ring (3) between the described adjacent carbide roll ring (2), one end of described roll shaft (1) is provided with the step (5) that stops carbide roll ring (2), and the other end of described roll shaft (1) is provided with the fixedly locking nut (4) of carbide roll ring (2).
2. a kind of composite hard alloy roll as claimed in claim 1, it is characterized in that: the diameter of described spacer ring (3) is less than the diameter of carbide roll ring (2).
3. a kind of composite hard alloy roll as claimed in claim 1 or 2, it is characterized in that: the diameter of described locking nut (4) is less than the diameter of carbide roll ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405373 CN202667252U (en) | 2012-08-15 | 2012-08-15 | Composite hard alloy roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405373 CN202667252U (en) | 2012-08-15 | 2012-08-15 | Composite hard alloy roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202667252U true CN202667252U (en) | 2013-01-16 |
Family
ID=47488185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220405373 Expired - Lifetime CN202667252U (en) | 2012-08-15 | 2012-08-15 | Composite hard alloy roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202667252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847714A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Composite hard alloy roller |
-
2012
- 2012-08-15 CN CN 201220405373 patent/CN202667252U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847714A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Composite hard alloy roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |