CN201664700U - Four-high mill and transmission shaft of breast roll thereof - Google Patents
Four-high mill and transmission shaft of breast roll thereof Download PDFInfo
- Publication number
- CN201664700U CN201664700U CN 200920318084 CN200920318084U CN201664700U CN 201664700 U CN201664700 U CN 201664700U CN 200920318084 CN200920318084 CN 200920318084 CN 200920318084 U CN200920318084 U CN 200920318084U CN 201664700 U CN201664700 U CN 201664700U
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- CN
- China
- Prior art keywords
- transmission shaft
- key
- power transmission
- breast roll
- internal tooth
- 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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Abstract
The utility model discloses a four-high mill and a transmission shaft of a breast roll thereof, wherein the transmission shaft of the breast roll comprises a shaft main body and an internal tooth sleeve, the shaft main body is provided with a conical journal, a tapered hole is arranged on the internal tooth sleeve, at least two keyways are uniformly distributed on the peripheral surface of the conical journal, a key is arranged in the keyway, the external side surface of the key is correspondingly matched with the internal surface of the tapered hole, the key is fixedly arranged on the transmission shaft through a fastening screw, and a key removing tapped hole is arranged on the key. By adopting the combination connection mode of the keys and the keyways of the utility model, the transmission shaft can be more conveniently installed and detached from the rack, once the transmission shaft of the breast roll is broken during rolling, the matched keys are only needed to be removed, the transmission shaft can be changed at any time, and thereby the overhauling time is greatly shortened, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of four-high mill and breast roll power transmission shaft thereof, belongs to the four-high mill technical field.
Background technology
Original four-high mill breast roll power transmission shaft comprises a body and internal tooth casing, the axle body is provided with a conical journal, one bellmouth is arranged on the internal tooth casing, be set with a tapered sleeve on the conical journal of described axle body, tapered sleeve matches with the cone-shaped inner hole of internal tooth casing, and the axle body comes transferring power by the interference fit of tapered sleeve and internal tooth casing.End at the axle body is provided with external screw thread, be installed with check washer and locking nut on the described external screw thread, described check washer and locking nut roof pressure are engaged on the cascaded surface that internal tooth casing inside is provided with, and locking nut and tapered sleeve are finished the axial location to the axle body jointly.
But this type of attachment shortcoming is more, install, dismounting is all extremely inconvenient, and tapered sleeve is very high to requirement on machining accuracy, this old extra processing charges that increased, tapered sleeve and internal tooth casing require relatively stricter at fit on simultaneously, be easy to occur easily becoming flexible owing to the magnitude of interference causes cooperating between tapered sleeve and the internal tooth casing inadequately, when on frame, power transmission shaft being installed, need earlier the axle body to be passed the memorial archway hole in addition, be connected with internal tooth casing again, but because the aperture size in memorial archway hole does not have the internal tooth casing diameter big, when power transmission shaft is changed in Maintenance and Repair, need require great effort and remove internal tooth casing, the power transmission shaft axis body could be extracted out, just additionally increase the repair time.
The utility model content
The purpose of this utility model provides a kind of four-high mill breast roll power transmission shaft, adopt this power transmission shaft after, on rolling-mill housing, install, the dismounting power transmission shaft is all more convenient; The utility model also provides a kind of four-high mill that uses this power transmission shaft simultaneously.
The technical scheme of a kind of four-high mill breast roll of the utility model power transmission shaft is: a kind of four-high mill breast roll power transmission shaft, this breast roll power transmission shaft comprises a body and internal tooth casing, described axle body is provided with a conical journal, described internal tooth casing is provided with a bellmouth, evenly be laid with at least two keyways on the side face of described conical journal, be equipped with key in the described keyway, the lateral surface of described key and the corresponding cooperation of the inner surface of described bellmouth.
Described key is fixedly installed on the power transmission shaft by trip bolt.
Described key has been provided with the key screwed hole.
The connected mode that four-high mill breast roll power transmission shaft of the present utility model adopts key and keyway to cooperate, finish being in transmission connection of a body and internal tooth casing, all more convenient when installation, dismounting power transmission shaft, in case damage at rolling mid frame roller power transmission shaft, remove the key that cooperates with internal tooth casing, just can make internal tooth casing break away from the axle body, thereby can change power transmission shaft at any time, shorten the repair time greatly, improved production efficiency; Keyway evenly is laid on the side face of conical journal, uniformity that can proof load has guaranteed the axiality of power transmission shaft and internal tooth casing.
The key that the key screwed hole can be more convenient has been set on key.
The technical scheme of the utility model four-high mill is: a kind of four-high mill, comprise the breast roll power transmission shaft, this roll mill power transmission shaft comprises a body and internal tooth casing, described axle body is provided with a conical journal, described internal tooth casing is provided with a bellmouth, evenly be laid with at least two keyways on the side face of described conical journal, be equipped with key in the described keyway, the lateral surface of described key and the corresponding cooperation of the inner surface of described bellmouth.Described key is fixedly installed on the power transmission shaft by trip bolt.
Described key has been provided with the key screwed hole.
On four-high mill, use above-mentioned breast roll power transmission shaft, all more convenient when installation on frame, dismounting power transmission shaft, in case power transmission shaft damages at rolling mid frame roller power transmission shaft, only need remove corresponding key, just can change power transmission shaft at any time, shorten the repair time greatly, improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model four-high mill mid frame roller power transmission shaft.
The specific embodiment
Figure 1 shows that roll mill transmission shaft structure signal in the utility model four-high mill, this roll mill power transmission shaft comprises a body 5 and internal tooth casing 1, this internal tooth casing 1 inside is provided with a bellmouth, on described axle body 5, be provided with a conical journal, evenly be laid with 4 keyways on the side face of the conical journal of axle body 5, be equipped with key 6 in the described keyway, described key 6 fixedly installs on the described axle body 5 by trip bolt 4, the corresponding cooperation of inner surface of the lateral surface of key 6 and the bellmouth of described internal tooth casing 1 inside also has been provided with key screwed hole 7 on key 6; The terminal axle journal of described axle body 5 is provided with external screw thread, is installed with check washer 3 and locking nut 2 on the external screw thread, in the inside of internal tooth casing 1 cascaded surface is arranged, and described locking nut 2 cooperates with described cascaded surface roof pressure by check washer 3.
Described locking nut 2 matches with key 6 and cooperates the axial location of finishing jointly axle body 5.
When maintenance or replacing power transmission shaft, screw out locking nut 2 and loosen pad 3, with internal tooth casing 1 and 5 disengagings of axle body, take out trip bolts 4 from key 6, trip out key 6, promptly replaceable power transmission shaft by the key screwed hole 7 that rises that is provided with on the key 6 at last.
Claims (6)
1. four-high mill breast roll power transmission shaft, this roll mill power transmission shaft comprises a body and internal tooth casing, described axle body is provided with a conical journal, described internal tooth casing is provided with a bellmouth, it is characterized in that: evenly be laid with at least two keyways on the side face of described conical journal, be equipped with key in the described keyway, the lateral surface of described key and the corresponding cooperation of the inner surface of described bellmouth.
2. four-high mill breast roll power transmission shaft according to claim 1, it is characterized in that: described key is fixedly installed on the power transmission shaft by trip bolt.
3. four-high mill breast roll power transmission shaft according to claim 2, it is characterized in that: described key has been provided with the key screwed hole.
4. four-high mill, comprise the breast roll power transmission shaft, this breast roll power transmission shaft comprises a body and internal tooth casing, described axle body is provided with a conical journal, described internal tooth casing is provided with a bellmouth, it is characterized in that: evenly be laid with at least two keyways on the side face of described conical journal, be equipped with key in the described keyway, the lateral surface of described key and the corresponding cooperation of the inner surface of described bellmouth.
5. four-high mill according to claim 4 is characterized in that: described key is fixedly installed on the power transmission shaft by trip bolt.
6. four-high mill according to claim 5 is characterized in that: described key has been provided with the key screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920318084 CN201664700U (en) | 2009-12-22 | 2009-12-22 | Four-high mill and transmission shaft of breast roll thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920318084 CN201664700U (en) | 2009-12-22 | 2009-12-22 | Four-high mill and transmission shaft of breast roll thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201664700U true CN201664700U (en) | 2010-12-08 |
Family
ID=43265653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920318084 Expired - Fee Related CN201664700U (en) | 2009-12-22 | 2009-12-22 | Four-high mill and transmission shaft of breast roll thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201664700U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562834A (en) * | 2012-02-23 | 2012-07-11 | 河南科技大学 | Device for identical rotation angles synchronous driving |
| CN102678772A (en) * | 2012-05-23 | 2012-09-19 | 东方电气集团东风电机有限公司 | Connection structure of motor and transmission system for direct-drive electric coach |
-
2009
- 2009-12-22 CN CN 200920318084 patent/CN201664700U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562834A (en) * | 2012-02-23 | 2012-07-11 | 河南科技大学 | Device for identical rotation angles synchronous driving |
| CN102562834B (en) * | 2012-02-23 | 2014-06-11 | 河南科技大学 | Device for identical rotation angles synchronous driving |
| CN102678772A (en) * | 2012-05-23 | 2012-09-19 | 东方电气集团东风电机有限公司 | Connection structure of motor and transmission system for direct-drive electric coach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20141222 |
|
| EXPY | Termination of patent right or utility model |