CN202667250U - Composite hard alloy roll - Google Patents
Composite hard alloy roll Download PDFInfo
- Publication number
- CN202667250U CN202667250U CN 201220402797 CN201220402797U CN202667250U CN 202667250 U CN202667250 U CN 202667250U CN 201220402797 CN201220402797 CN 201220402797 CN 201220402797 U CN201220402797 U CN 201220402797U CN 202667250 U CN202667250 U CN 202667250U
- Authority
- CN
- China
- Prior art keywords
- roll
- alloy
- roll shaft
- rings
- bolt
- 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
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 60
- 239000000956 alloy Substances 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- 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 alloy roll rings are arranged on the roll shaft; a spacer ring is arranged between every two adjacent alloy roll rings; a step for stopping the alloy roll rings is arranged at one end of the roll shaft; a large nut is arranged at the other end of the roll shaft; at least three threaded holes that are parallel to an axis are formed in the large nut; bolts are arranged in the threaded holes; and one end of each bolt pushes against the end face of the corresponding alloy roll ring. The composite hard alloy roll has the advantages that the roll shaft is sleeved with the alloy roll rings and the spacer rings; then the large nut screwed with the bolts is screwed into the roll shaft; the lengths of the bolts are adjusted to ensure that the bolts can push against the alloy roll rings tightly; and then reversal nuts are screwed for positioning the bolts. Interference fit is not required to be adopted between the alloy roll rings and the roll shaft, so that the alloy roll rings do not crack; the service life of the roll is prolonged effectively; and the alloy roll rings can be firmly fixed on the roll shaft.
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.
So we expect utilizing between collars and the roll shaft interference fit to come the balance radial load, withstand collars with nut again and come balancing axial thrust, but we find that collars is easy to cracking, affects service life because interference fit is larger to collars pressure ratio radially in actual use.
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, described roll shaft is provided with at least two joint alloy collars, be provided with spacer ring between the described adjacent alloy collars, one end of described roll shaft is provided with the step that blocks the alloy collars, the other end of described roll shaft is provided with big nut, described big nut is provided with at least three screwed holes parallel with axis, be provided with bolt in the described screwed hole, an end of described bolt withstands on the end face of alloy collars.
Preferably, also be provided with the reverse nut that prevents that bolt from getting loose on the bolt between described big nut and the alloy collars; Prevent from getting loose behind the bolt tightening.
Preferably, the head of described bolt withstands on the end face of alloy collars, and the afterbody of described bolt is arranged in the screwed hole; In the situation that do not need additional parts to increase the contact area of bolt and alloy collars.
Preferably, described screwed hole has 12; Can be comparatively stable fix the alloy collars.
Preferably, described screwed hole is distributed on the big nut; Make the alloy collars stressed evenly.
Compared with prior art, the utility model has the advantages that: first alloy collars and spacer ring are enclosed within on the roll shaft, the big nut that then will be screwed with bolt is screwed on the roll shaft, regulate the length of each bolt, make bolt can hold out against the alloy collars, then twisting good reverse nut with Bolt to position, needn't adopt interference fit between this device alloy collars and the roll shaft, therefore the alloy collars can not ftracture, and effectively prolongs the service life of roll, guarantees that simultaneously the alloy collars can firmly be fixed on the roll shaft.
Description of drawings
Fig. 1 is the structural representation of a kind of composite hard alloy roll of the utility model.
The specific embodiment
Consult the embodiment that Fig. 1 is a kind of composite hard alloy roll of the utility model, a kind of composite hard alloy roll, comprise roll shaft 1, described roll shaft 1 is provided with at least two joint alloy collars 2, be provided with spacer ring 3 between the described adjacent alloy collars 2, one end of described roll shaft 1 is provided with the step 8 that blocks alloy collars 2, the other end of described roll shaft 1 is provided with big nut 4, described big nut 4 is provided with at least three screwed holes parallel with axis 5, be provided with bolt 6 in the described screwed hole 5, one end of described bolt 6 withstands on the end face of alloy collars 2, also be provided with the reverse nut 7 that prevents that bolt 6 from getting loose on the bolt 6 between described big nut 4 and the alloy collars 2, the head of described bolt 6 withstands on the end face of alloy collars 2, the afterbody of described bolt 6 is arranged in the screwed hole 5, described screwed hole 5 has 12, and described screwed hole 5 is distributed on the big nut 4.
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 (5)
1. composite hard alloy roll, comprise roll shaft (1), it is characterized in that: described roll shaft (1) is provided with at least two joint alloy collars (2), be provided with spacer ring (3) between the described adjacent alloy collars (2), one end of described roll shaft (1) is provided with the step (8) that blocks alloy collars (2), the other end of described roll shaft (1) is provided with big nut (4), described big nut (4) is provided with at least three screwed holes parallel with axis (5), be provided with bolt (6) in the described screwed hole (5), an end of described bolt (6) withstands on the end face of alloy collars (2).
2. a kind of composite hard alloy roll as claimed in claim 1 is characterized in that: also be provided with the reverse nut (7) that prevents that bolt (6) from getting loose on the bolt (6) between described big nut (4) and the alloy collars (2).
3. a kind of composite hard alloy roll as claimed in claim 1 or 2, it is characterized in that: the head of described bolt (6) withstands on the end face of alloy collars (2), and the afterbody of described bolt (6) is arranged in the screwed hole (5).
4. a kind of composite hard alloy roll as claimed in claim 1 or 2, it is characterized in that: described screwed hole (5) has 12.
5. a kind of composite hard alloy roll as claimed in claim 3, it is characterized in that: described screwed hole (5) is distributed on the big nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402797 CN202667250U (en) | 2012-08-15 | 2012-08-15 | Composite hard alloy roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402797 CN202667250U (en) | 2012-08-15 | 2012-08-15 | Composite hard alloy roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202667250U true CN202667250U (en) | 2013-01-16 |
Family
ID=47488183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402797 Expired - Lifetime CN202667250U (en) | 2012-08-15 | 2012-08-15 | Composite hard alloy roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202667250U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847715A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Composite hard alloy roller |
| CN104550241A (en) * | 2015-01-29 | 2015-04-29 | 马鞍山利元实业有限公司 | Composite roll |
-
2012
- 2012-08-15 CN CN 201220402797 patent/CN202667250U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847715A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Composite hard alloy roller |
| CN104550241A (en) * | 2015-01-29 | 2015-04-29 | 马鞍山利元实业有限公司 | Composite roll |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102847715A (en) | Composite hard alloy roller | |
| CN107999541B (en) | A nut locking device and a combined roll with the device | |
| CN204866840U (en) | Modular carbide roll | |
| CN201978940U (en) | Combined assembly roller | |
| CN203526199U (en) | Combined assembly roller | |
| CN102773259A (en) | Roller convenient to disassemble and change | |
| CN204817463U (en) | Carbide makes up roll | |
| CN2533964Y (en) | Hydraulic prestressed high strength combined roll | |
| CN205270355U (en) | Rolling mill and roll box thereof | |
| CN204866843U (en) | Modular carbide collars | |
| CN204911617U (en) | Can dismantle roller skin unit and wear -resisting roller of high pressure roller mill quick assembly disassembly formula is structure | |
| CN202667251U (en) | Composite hard alloy roll | |
| CN204817464U (en) | Combination carbide roll | |
| CN201871538U (en) | Taper sleeve for high-speed wire finishing mill | |
| CN202667252U (en) | Composite hard alloy roll | |
| CN105935855A (en) | Repairing method for end face tooth rolling roll shaft of novel three-roll planetary rolling mill | |
| CN105328437A (en) | Planetary gear bearing disassembling tooling | |
| CN216895244U (en) | a connecting pin | |
| CN204830831U (en) | A compound backing plate structure for turning round type kiln class equipment | |
| CN201482894U (en) | Novel combined type rolling roller | |
| CN202366949U (en) | Simple machinery combined energy storage roller | |
| CN204186793U (en) | A kind of double-row angular contact bal bearing | |
| CN104148398A (en) | Simple combined-type roller | |
| CN202779166U (en) | Roller convenient to disassemble and change | |
| CN203292181U (en) | Steel rolling roller |
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 |