CN202105844U - Drive drum of piercing mill mandrel thrust block - Google Patents
Drive drum of piercing mill mandrel thrust block Download PDFInfo
- Publication number
- CN202105844U CN202105844U CN2011201858558U CN201120185855U CN202105844U CN 202105844 U CN202105844 U CN 202105844U CN 2011201858558 U CN2011201858558 U CN 2011201858558U CN 201120185855 U CN201120185855 U CN 201120185855U CN 202105844 U CN202105844 U CN 202105844U
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- CN
- China
- Prior art keywords
- transmission shaft
- drum
- drive drum
- spool body
- drum body
- 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
A drive drum of a piercing mill mandrel thrust block relates to a steel rolling machine. The utility model solves problems of complicated welding technology of a welding type drum, easy occurrence of cracks on weld joints and a potential safety hazard. The drive drum includes a drum body and a transmission shaft connected with the drum body, and is characterized in that the drum body is an integral cast steel structure; the drum body and the transmission shaft are in transition fit and connected by keys; a vertical step is arranged at a fitted position of the transmission shaft and the drum body on a right side of the transmission shaft; a groove is arranged at the fitted position of the transmission shaft and the drum body on a left side of the transmission shaft; and a collar is installed in the groove. The drive drum employs an assembled structure, is simple in manufacturing technology, eliminates the potential safety hazard, and is labour-saving and time-saving in assembly and disassembly.
Description
Technical field
The utility model relates to rolling machinery, particularly mandril thrust trolley of puncher.
Background technology
At present, the drive drum of mandril thrust trolley of puncher adopts welded structure (as shown in Figure 1), and drive drum is made up of spool body 1 and power transmission shaft 2.Said spool body 1 comprises: cylinder 1-1 and cover plate 1-2, said cylinder 1-1 roll with steel plate and are welded, and said cover plate 1-2 is welded on the both sides of said cylinder 1-1, and said power transmission shaft 2 welds together with said cover plate 1-2.This welded type drive drum, welding procedure is complicated, occurs cold crack during welding easily, and the weld size between power transmission shaft and two side cover plates is big, cause stress concentrated.Drive drum startup in rolling work, acceleration, deceleration, stopped process are frequent, and power transmission shaft is bearing under the situation of alternate stress, very easily crack with the root of weld of two side cover plates, cause accident to take place.
Summary of the invention
The purpose of the utility model is the shortcoming that exists to prior art, and a kind of drive drum of mandril thrust trolley of puncher is provided, and adopts fabricated construction, solves welded type reel complex process, and weld seam is prone to crack, and has the problem of potential safety hazard.
The utility model is realized through following technical scheme:
A kind of drive drum of mandril thrust trolley of puncher comprises: spool body, the power transmission shaft that is connected with spool body; It is characterized in that: said spool body is the integral cast steel structure; Be interference fits between said spool body and the said power transmission shaft, and connect that the cooperation place of said power transmission shaft right side and said spool body is provided with perpendicular steps with key; Said power transmission shaft left side is provided with groove with the cooperation place of said spool body, and collar is installed in the said groove.
Said collar is made up of last collar and following collar, and connects with high-strength screw.
The utility model is compared with prior art: because spool body 1 adopts the integral cast steel structure, casting technique is simple, has reduced labour intensity, has reduced manufacturing time.Adopt interference fits and key to be connected between power transmission shaft and the spool body, both guaranteed bonding strength, improved the load capacity of drive drum again, avoided possibility that welded type drive drum weld seam cracks simultaneously, improved safety coefficient.Assembling, dismounting reel save time, laborsaving, efficient is high.
Description of drawings
Fig. 1 is the welded type drive drum structural representation of prior art;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the A-A cutaway view of Fig. 2.
The specific embodiment
Like Fig. 2, shown in 3, a kind of drive drum of mandril thrust trolley of puncher comprises: spool body 1; The power transmission shaft 2 that is connected with spool body 1, said spool body 1 is the integral cast steel structure, is interference fits between said spool body 1 and the said power transmission shaft 2; And with key 3 connections; The cooperation place of said power transmission shaft 2 right sides and said spool body 1 is provided with step 2-1 and is used for locating, and the cooperation place of said power transmission shaft 2 left sides and said spool body 1 is provided with groove 2-2, collar 4 is installed in the said groove 2-2 is used for locating.
Said collar 4 is made up of last collar 4-1 and following collar 4-2, and connects with high-strength screw 4-3.
Claims (2)
1. the drive drum of a mandril thrust trolley of puncher; Comprise: spool body (1); The power transmission shaft (2) that is connected with spool body (1) is characterized in that: said spool body (1) is the integral cast steel structure, is interference fits between said spool body (1) and the said power transmission shaft (2); And connect with key (3); The cooperation place of said power transmission shaft (2) right side and said spool body (1) is provided with perpendicular steps (2-1), and said power transmission shaft (2) left side is provided with groove (2-2) with the cooperation place of said spool body (1), and collar (4) is installed in the said groove (2-2).
2. according to the drive drum of the described mandril thrust trolley of puncher of claim 1, it is characterized in that: said collar (4) is made up of last collar (4-1) and following collar (4-2), and connects with high-strength screw (4-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201858558U CN202105844U (en) | 2011-05-31 | 2011-05-31 | Drive drum of piercing mill mandrel thrust block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201858558U CN202105844U (en) | 2011-05-31 | 2011-05-31 | Drive drum of piercing mill mandrel thrust block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202105844U true CN202105844U (en) | 2012-01-11 |
Family
ID=45431293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201858558U Expired - Fee Related CN202105844U (en) | 2011-05-31 | 2011-05-31 | Drive drum of piercing mill mandrel thrust block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202105844U (en) |
-
2011
- 2011-05-31 CN CN2011201858558U patent/CN202105844U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20170531 |