CN202137186U - Roll shaft and spline housing assembly structure of cone mill - Google Patents
Roll shaft and spline housing assembly structure of cone mill Download PDFInfo
- Publication number
- CN202137186U CN202137186U CN201120220511U CN201120220511U CN202137186U CN 202137186 U CN202137186 U CN 202137186U CN 201120220511 U CN201120220511 U CN 201120220511U CN 201120220511 U CN201120220511 U CN 201120220511U CN 202137186 U CN202137186 U CN 202137186U
- Authority
- CN
- China
- Prior art keywords
- roll shaft
- spline housing
- pressing plate
- roll mandrel
- cone mill
- 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 - Fee Related
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model provides a roll shaft and spline housing assembly structure of a cone mill, which overcomes a defect of loosening or breakage of a fastening bolt on an axial pressure plate due to radial impact generated in main transmission process. The roll shaft and spline housing assembly structure of the cone mill includes a roll shaft, a spline housing, an axial pressure plate and fastening bolts; the roll shaft and the spline housing are assembled together; bolt apertures are provided on the axial pressure plate; the roll shaft is fastened on the axial pressure plate by means of the fastening bolts; and the utility model is characterized in that a counter sink is provided in one end of the roll shaft; and the axial pressure plate which is a convex round table extends into the counter sink, thereby a hole-shaft transition fit is formed.
Description
Technical field
The utility model relates to the cone mill structure that is used for the restraint tandem rolling pipe production line, is specially cone mill roll mandrel and spline package distribution structure.
Background technology
The cone mill structure that is used for the restraint tandem rolling pipe production line at present; Wherein cone mill roll mandrel and spline package distribution structure are roll mandrel, spline housing, axial pressing plate and fastening bolt; Described axial pressing plate is have bolt hole circular dull and stereotyped; Because in the drilling/rolling process of restraint tandem rolling pipe production line; The main transmission crossed universal shaft shaft coupling of cone mill makes the transmission that self has angle direction because of the feed angle adjustment; Produce radial impact when causing roll mandrel and spline housing assembling gap and pipe to nip, this radial impact can produce the shearing and the bending stress in cycle to the fastening bolt on the axial pressing plate of spline housing, causes the loosening or fracture of fastening bolt on the axial pressing plate easily.
Summary of the invention
Exist in the drilling/rolling process of restraint tandem rolling pipe production line to existing cone mill roll mandrel and spline package distribution structure; Because of cone mill main transmission operation produces radial impact; The defective that causes the fastening bolt on the axial pressing plate to become flexible or rupture easily; The utility model provides other a kind of cone mill roll mandrel and spline package distribution structure, and the main transmission operation produces the defective that radial impact can not cause the fastening bolt on the axial pressing plate to become flexible or rupture.
Its technical scheme is such: it comprises roll mandrel, spline housing, axial pressing plate and fastening bolt; Described roll mandrel and described spline housing are assembled together, and have bolt hole on the described axial pressing plate, and described roll mandrel and described axial pressing plate are fastening by fastening bolt; It is characterized in that: an end of described roll mandrel is provided with counter sink; Described axial pressing plate is the convex round platform, and said convex round platform stretches into said counter sink, between be hole axle interference fits.
The utility model adopts after the said structure; Owing to form hole axle interference fits face between the convex round platform of the counter sink of roll mandrel end face and axial pressing plate; Be close to fixing bolt bigger Bolt Tightening Force square of needs just fixedly the time at roll mandrel and axial pressing plate; Again because in the drilling/rolling process of restraint tandem rolling pipe production line; The radial impact that cone mill main transmission when operation produces directly acts on the hole axle interference fits face that forms between the convex round platform of an end counter sink of roll mandrel and axial pressing plate, thereby satisfied the demand that roll mandrel and axial pressing plate are close to fixing bolt required screw-down torque when fastening; Simultaneously axially the fastening bolt on the pressing plate no longer bears radial impact load and the shearing and the bending stress that produce, and fastening bolt is difficult for loosening or fracture.
Description of drawings
Fig. 1 is the cutaway view of the utility model.
The specific embodiment
See that Fig. 1, the utility model comprise roll mandrel 4, spline housing 1, axial pressing plate 5 and fastening bolt 2; Roll mandrel 4 is assembled together with spline housing 1, axially has bolt hole on the pressing plate 5, and roll mandrel 4 is with axially pressing plate 5 is fastening by fastening bolt 2; One end of roll mandrel 4 is provided with counter sink 3; Axially pressing plate 5 is the convex round platform, and the convex round platform stretches into counter sink 3, between be hole axle interference fits.
Claims (1)
1. cone mill roll mandrel and spline package distribution structure, it comprises roll mandrel, spline housing, axially pressing plate and fastening bolt, described roll mandrel and described spline housing are assembled together; Have bolt hole on the described axial pressing plate; Described roll mandrel and described axial pressing plate are fastening by fastening bolt, it is characterized in that: an end of described roll mandrel is provided with counter sink, and described axial pressing plate is the convex round platform; Said convex round platform stretches into said counter sink, between be hole axle interference fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220511U CN202137186U (en) | 2011-06-27 | 2011-06-27 | Roll shaft and spline housing assembly structure of cone mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220511U CN202137186U (en) | 2011-06-27 | 2011-06-27 | Roll shaft and spline housing assembly structure of cone mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137186U true CN202137186U (en) | 2012-02-08 |
Family
ID=45548265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120220511U Expired - Fee Related CN202137186U (en) | 2011-06-27 | 2011-06-27 | Roll shaft and spline housing assembly structure of cone mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137186U (en) |
-
2011
- 2011-06-27 CN CN201120220511U patent/CN202137186U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140922 Granted publication date: 20120208 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150322 Granted publication date: 20120208 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150627 |
|
| EXPY | Termination of patent right or utility model |