CN201399474Y - Conical bushing used for wire rolling mill and bar rolling mill - Google Patents
Conical bushing used for wire rolling mill and bar rolling mill Download PDFInfo
- Publication number
- CN201399474Y CN201399474Y CN2009203012630U CN200920301263U CN201399474Y CN 201399474 Y CN201399474 Y CN 201399474Y CN 2009203012630 U CN2009203012630 U CN 2009203012630U CN 200920301263 U CN200920301263 U CN 200920301263U CN 201399474 Y CN201399474 Y CN 201399474Y
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- Prior art keywords
- rolling mill
- tapered sleeve
- cylindrical shell
- conical bushing
- face
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Abstract
The utility model relates to the technical field of wire steel rolling and bar steel rolling, in particular to a conical bushing used for a wire rolling mill and a bar rolling mill, which can effectively improve the contact status among a roll shaft, the conical bushing and a roll collar, comprises a cylindrical shell provided with the conical surface of the conical bushing, and is characterized in that the external surface of one end of the cylindrical shell is a conical bushing external contact surface, and the other end thereof is provided with a suspension loop used for releasing pressure;the cylindrical shell is provided with an inner planet plate at the inner hole position of the suspension loop used for releasing pressure; an annular groove is arranged on the conical bushing external contact surface at the one-third position from one end of the cylindrical shell to the other end thereof; and the external surface of the cylindrical shell adjacent to the conical bushing externalcontact surface is provided with a non-contact surface.
Description
Technical field
The utility model relates to a kind of wire rod, bar steel rolling technical field, especially relates to a kind of line, bar rolling mill taper bush that can effectively improve the contact condition between roll shaft, tapered sleeve, the collars.
Background technology
At present, taper bush assembling mode is used in installing and fixing of the line of high-speed rod, excellent cantilevered roll collar of rolling mill basically, it mainly is the keyless and bearing load of frictional force realization by faying face, and the friction of faying face and contact property are very important to the collars assembling.In traditional roll shaft, tapered sleeve, the collars assembling, the process that tapered sleeve is suppressed is: tapered sleeve was seated after the making a concerted effort of normal pressure axial thrust load that the frictional force and the roll shaft of the frictional force, collars and the tapered sleeve that overcome tapered sleeve and roll shaft under the axial compressive force effect acts on tapered sleeve, and formed equilibrium of forces.The pre-finishing mill group, mm finishing mill unit, reducing sizing mill group are the nucleus equipments of high-speed line, bar mill, the collars assembling axial compressive force of these cantilever rolling mills is important technical parameters of collars assembling.If assembling pressure is too high, collars easily causes and collapses roller under the acting in conjunction of the thermal expansion stress that alternate stress that interference erection stress, draught pressure cause and roll shaft temperature rise cause in the production; If assembling pressure is low excessively,, can cause that tapered sleeve falls to press because of not satisfying the roll torque transmission condition.
The collars assembling belongs to big load Static Contact, and the real contact area of its faying face is not only relevant with surface roughness, and is also relevant with ovality, the dimensional accuracy of collars, tapered sleeve and roll shaft.Higher ovality and dimensional accuracy, bright and clean surface help improving the real contact area of faying face.Simultaneously, make the distribution of contact of faying face even.Otherwise, the real contact area of faying face is reduced, the distribution of contact inequality.
The inboard front end of tapered sleeve 1/4～1/3 position in actual the use, because pressurization repeatedly, release, make it bad with the roll shaft contact condition, after water infiltrates, chloride in the water, fluoride, sulfide plays corrosiveness to the roll shaft and the tapered sleeve of stainless steel or structural alloy steel material, quicken its corrosion, permanent loose contact can appear in tapered sleeve front end and its roll shaft corresponding site, roll shaft, tapered sleeve, can not set up the necessary big load stiction of effective transmission between the collars, rolling middle tapered sleeve occurs and fall to press phenomenon, roll shaft, tapered sleeve, occur between the collars sliding relatively, make roll mandrel badly damaged, the steel accident also can occur piling, or because effectively contact area is little, the tapered sleeve inboard wall stress is concentrated, and collars occurs and collapses the cracked phenomenon of roller.The general frequent replacing taper bush of manufacturer takes place for fear of above-mentioned accident.
Summary of the invention
The purpose of this utility model is during for the installing and fixing of the line that solves high-speed rod, excellent cantilevered roll collar of rolling mill, tapered sleeve fall to be pressed and collars collapses the problem of the cracked phenomenon of roller in rolling, provide a kind of rational in infrastructure, increase effective contact area, roll shaft, tapered sleeve, collars contact condition be can improve, product line, the bar rolling mill taper bush in service life improved.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: this line, bar rolling mill taper bush, comprise that one is provided with the cylindrical shell of tapered sleeve inner conical surface, the outer surface that it is characterized in that cylindrical shell one end is a tapered sleeve outer contacting face, the other end is provided with the release hangers, cylindrical shell release with hangers in the hole site be provided with internal gear; To the cylindrical shell other end 1/3rd, and on tapered sleeve outer contacting face, be provided with annular groove from an end of cylindrical shell; The barrel outer surface adjacent with tapered sleeve outer contacting face is provided with noncontact face.
As preferably, the cross section of described annular groove is an arc, and the degree of depth of its arc is 0.5～0.8mm, and the radius of arc is 5～8mm.The setting of annular groove can improve the contact condition of tapered sleeve and roll shaft bottom bound fraction, is effective and applying fully.
As preferably, described release is with being provided with the transition cannelure between hangers and the noncontact face.Arc transition can be eliminated pressurization and release causes stress concentrated herein.
As preferably, be provided with transition arc between described tapered sleeve outer contacting face and the noncontact face.The same one identical, the arc transition stress of getting taper bush that can disappear is concentrated.
As preferably, the tapering of described tapered sleeve inner conical surface equates with the tapering of roll mandrel.
As preferably, the profile of tooth of internal gear and the external tooth engagement of roll shaft upper end can prevent tapered sleeve slide relative with roll shaft after the roll shaft release, the damage roll shaft.
Therefore, the utility model is a kind of reasonable in design, can increase the effective outer contacting area of tapered sleeve, improves roll shaft, tapered sleeve, collars contact condition, improves product line, the bar rolling mill taper bush in service life.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is that the A of the utility model Fig. 1 is to schematic diagram.
Fig. 3 is a kind of contour structures schematic diagram of the present utility model.
Among the figure: 1. tapered sleeve outer contacting face, 2. noncontact face, 3. release is with hangers, 4. tapered sleeve inner conical surface, 5. internal gear, 6. annular groove, 7. transition cannelure, 8. transition arc.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Referring to Fig. 1,2, present embodiment line, bar rolling mill taper bush, comprise that one is provided with the cylindrical shell of tapered sleeve inner conical surface 4, the outer surface of cylindrical shell one end is a tapered sleeve outer contacting face 1, and the other end is provided with release with hangers 3, cylindrical shell release with hangers 3 in the hole site be provided with internal gear 5, surface roughness as working face tapered sleeve outer contacting face 1 and inner conical surface 4 is 0.4, but is not more than 0.8.
To the cylindrical shell other end 1/3rd positions, and contact-making surface 1 is provided with annular groove 6 outside from an end of cylindrical shell, and the cross section of annular groove 6 is an arc, and the depth H of its arc is 0.5～0.8mm, and the radius R of arc is 5～8mm.
The barrel outer surface adjacent with tapered sleeve outer contacting face 1 is provided with noncontact face 2, processing one transition arc 8 between tapered sleeve outer contacting face 1 and the noncontact face 2.
As Fig. 3, be a kind of external form schematic diagram of the present utility model, release is divided into the quartering with hangers 3 by circumference, and release is processed a transition cannelure 7 with between hangers 3 and the noncontact face 2.
During assembling, this taper bush roll mandrel one end of packing into, inner conical surface 4 cooperates with cone on the roll mandrel, and the collars of contact-making surface 1 place assembling outside gets final product.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any structure after the simple transformation of the present utility model is all belonged to protection domain of the present utility model.
Claims (5)
1. a line, bar rolling mill taper bush, comprise that one is provided with the cylindrical shell of tapered sleeve inner conical surface, the outer surface that it is characterized in that described cylindrical shell one end is a tapered sleeve outer contacting face (1), and the other end is provided with release with hangers (3), cylindrical shell release with hangers (3) in the hole site be provided with internal gear (5); To the cylindrical shell other end 1/3rd, and on tapered sleeve outer contacting face (1), be provided with annular groove (6) from an end of cylindrical shell; The barrel outer surface adjacent with tapered sleeve outer contacting face (1) is provided with noncontact face (2).
2. a kind of line according to claim 1, bar rolling mill taper bush, the cross section that it is characterized in that described annular groove (6) is an arc, and the degree of depth of its arc is 0.5～0.8mm, and the radius of arc is 5～8mm.
3. a kind of line according to claim 1, bar rolling mill taper bush is characterized in that described release is with being provided with transition cannelure (7) between hangers (3) and the noncontact face (2).
4. according to claim 1 or 3 described a kind of lines, bar rolling mill taper bush, it is characterized in that being provided with transition arc (8) between described tapered sleeve outer contacting face (1) and the noncontact face (2).
5. a kind of line according to claim 1, bar rolling mill taper bush is characterized in that the tapering of described tapered sleeve inner conical surface (4) equates with the tapering of roll mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203012630U CN201399474Y (en) | 2009-03-13 | 2009-03-13 | Conical bushing used for wire rolling mill and bar rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203012630U CN201399474Y (en) | 2009-03-13 | 2009-03-13 | Conical bushing used for wire rolling mill and bar rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201399474Y true CN201399474Y (en) | 2010-02-10 |
Family
ID=41659268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203012630U Expired - Lifetime CN201399474Y (en) | 2009-03-13 | 2009-03-13 | Conical bushing used for wire rolling mill and bar rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201399474Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590490B (en) * | 2009-03-13 | 2011-01-05 | 东阳市朋诚科技有限公司 | Tapered bushing for line and bar rolling mill |
| CN107303635A (en) * | 2016-04-19 | 2017-10-31 | 贺尔碧格传动技术控股有限公司 | The manufacture method and sliding sleeve of the sliding sleeve of synchronous hand gear device assembly |
| CN115319125A (en) * | 2022-10-14 | 2022-11-11 | 徐州乐来工程机械有限公司 | Mechanical roller turning, reforming and recycling equipment and using method thereof |
-
2009
- 2009-03-13 CN CN2009203012630U patent/CN201399474Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590490B (en) * | 2009-03-13 | 2011-01-05 | 东阳市朋诚科技有限公司 | Tapered bushing for line and bar rolling mill |
| CN107303635A (en) * | 2016-04-19 | 2017-10-31 | 贺尔碧格传动技术控股有限公司 | The manufacture method and sliding sleeve of the sliding sleeve of synchronous hand gear device assembly |
| CN115319125A (en) * | 2022-10-14 | 2022-11-11 | 徐州乐来工程机械有限公司 | Mechanical roller turning, reforming and recycling equipment and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100210 Effective date of abandoning: 20090313 |