CN202461332U - End withdrawing machine - Google Patents
End withdrawing machine Download PDFInfo
- Publication number
- CN202461332U CN202461332U CN2011203602993U CN201120360299U CN202461332U CN 202461332 U CN202461332 U CN 202461332U CN 2011203602993 U CN2011203602993 U CN 2011203602993U CN 201120360299 U CN201120360299 U CN 201120360299U CN 202461332 U CN202461332 U CN 202461332U
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- main shaft
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Abstract
The utility model relates to an end withdrawing machine used for withdrawing or heading ends of steel pipes. The end withdrawing machine comprises a main shaft, a supporting sleeve 1 disposed on a front end of the main shaft, and a supporting sleeve 2 disposed on a side part of the main shaft. The supporting sleeves are provided with a plurality of positioning holes. The main shaft is provided with extended parts, which can be inserted into the positioning holes for the positioning of the main shaft. Compared to the conventional end withdrawing machines, the life-cycle of the end withdrawing machine provided in the utility model is greatly changed, the maintenance costs can be reduced, and the labor intensity of workers can be reduced at the same time.
Description
Technical field
The utility model relates to a kind of to the steel pipe head drop-head or the drop-head machine of taking the lead, and belongs to steel pipe tube-making technology field.
Background technology
Seamless steel pipe is one of the most widely used rolling shapes in national economy and the construction.Be widely used in industries such as boiler, oil, chemical industry, electric power, nuclear power, geological prospecting, shipbuilding, machinery.The production of seamless steel pipe must be accomplished through a series of working procedure processing such as hot rolling, cold-drawn and heat treatment by pipe, and the realization of each procedure then needs various equipment to participate in.And to realize the work that is connected between hot rolling and the cold-drawn operation, and then want relevant drop-head (or taking the lead) in steel tube end part, this one procedure is most important.
There is following defective in existing drop-head machine: 1) in the equipment running process, being arranged on the support set one of front-end of spindle portion has 4 claws, with 4 pillars of spindle nose, relies on 4 claws on the support set one to prevent that main shaft from walking, being out of shape; Owing to there are vibrations during equipment operation, be prone to cause the loosening of support set one claw, and cause the main shaft dislocation, break away from the relative fixed state; And the main shaft column after disengaging is fixing receives the bump of spinning piece and pressing mold, frangible; 2) equipment is in running, and the support set two that is arranged on the main shaft sidepiece and the back-up roll contact surface abrasion of retainer are after to a certain degree, and support set two is easy to generate the phenomenon of cracking; And equipment once can't shut down; The fragment of support set two falls in vivo, and the bump of spinning piece and pressing mold very easily damages other parts in addition; Often cause stopping production, directly influence the production line production capacity; Also increase maintenance cost and maintenance capacity greatly, increased the downtime.
The utility model content
The utility model is to above-mentioned defective, and purpose is to provide a kind of drop-head machine that makes main shaft held stationary state in operation process.
The technical scheme of the utility model employing is for this reason: the utility model comprises that main shaft and support set that is arranged on front-end of spindle portion one and annular are arranged on the support set two of main shaft sidepiece; Said support set is provided with some locating holes, and the anterior lengthening of said main shaft also stretches to location in the locating hole.
Said locating hole is four, axially is distributed on the support set one; Correspondence is provided with four lengthening parts that extend in the locating hole on the said main shaft.
Said support set two is arranged to integral structure with main shaft.
The utility model has the advantages that: 1) the utility model is removed 4 claws of former support set one; 4 holes of matching of processing on support set one with front-end of spindle; The mating part of back lengthening front-end of spindle; Front-end of spindle is partly put in 4 holes of support set one, like this with regard to thorough problem and the phenomenon of rupture that solves the main shaft dislocation; Increase pressing plate simultaneously, pressing plate, support set one, main shaft are tightened with bolt, keep relative static conditions.2) the utility model is integrated support set two and main shaft, has so just saved support set two these parts, has also avoided support set two crackings that occur before the transformation of the way simultaneously and has produced the fragment phenomenon.
After the utility model saves support set two, improve former main shaft.After the wearing and tearing of the contact site of main shaft and retainer back-up roll contact-making surface, pull down main shaft and carry out the abrading section built-up welding, and carry out selective hardening and handle, improve hardness.Can make main shaft go out to come into operation again.
The utility model is increased to M24 with the bolt hole of former front-end of spindle 8-M18 simultaneously, has increased bonding strength.
In sum, more traditional drop-head machine of cycle that the drop-head machine of the utility model uses has obvious change, has reduced maintenance cost, has also reduced labor strength simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of existing drop-head machine.
Fig. 3 is the structural representation of the utility model main shaft.
Fig. 4 is the structural representation of the utility model support set one.
1 is that main shaft, 2 is that lengthening part, 3 is that support set one, 4 is that locating hole, 5 is support set two among the figure.
The specific embodiment
As a specific embodiment of the utility model, the utility model can assemble according to following structure:
The utility model will be on support set 14 locating holes 4 that match with main shaft 1 front end of processing, the mating part of main 1 front end of lengthening puts in 4 locating holes 4 of support set 1 four corresponding lengthening parts 2 of main shaft 1 front end simultaneously; Further increase pressing plate simultaneously, pressing plate, support set 1, main shaft 1 usefulness bolt are tightened, keep relative static conditions.
The utility model is integrated traditional support set 25 and main shaft 1 simultaneously.
From the 355mm 90mm that extends, 4 identical profiled holes on the support set 1 of lengthening part 2 and the utility model match the utility model with the pawl of main shaft 1.
The utility model is increased to M24 with the bolt hole of main shaft 1 front end 8-M18 simultaneously, increases bonding strength.
Claims (1)
1. the drop-head machine is characterized in that, comprises that main shaft and support set that is arranged on front-end of spindle portion one and annular are arranged on the support set two of main shaft sidepiece, and said support set one is provided with some locating holes, and the anterior lengthening of said main shaft also stretches to location in the locating hole.
2, drop-head machine according to claim 1 is characterized in that, said locating hole is four, axially is distributed on the support set one; Correspondence is provided with four lengthening parts that extend in the locating hole on the said main shaft.
3, drop-head machine according to claim 1 is characterized in that, said support set two is arranged to integral structure with main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203602993U CN202461332U (en) | 2011-09-23 | 2011-09-23 | End withdrawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203602993U CN202461332U (en) | 2011-09-23 | 2011-09-23 | End withdrawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202461332U true CN202461332U (en) | 2012-10-03 |
Family
ID=46909530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203602993U Expired - Fee Related CN202461332U (en) | 2011-09-23 | 2011-09-23 | End withdrawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202461332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736890A (en) * | 2013-12-30 | 2014-04-23 | 太原科技大学 | Hammerhead subsection tilting type seamless steel tube hot heading machine |
| CN109954803A (en) * | 2017-12-26 | 2019-07-02 | 重庆达德机械制造有限公司 | A kind of automation nozzle docking pipe reduction device |
| CN110640035A (en) * | 2019-08-29 | 2020-01-03 | 松阳永信机械制造有限公司 | Seamless pipe head reducing machine |
-
2011
- 2011-09-23 CN CN2011203602993U patent/CN202461332U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736890A (en) * | 2013-12-30 | 2014-04-23 | 太原科技大学 | Hammerhead subsection tilting type seamless steel tube hot heading machine |
| CN103736890B (en) * | 2013-12-30 | 2016-10-26 | 太原科技大学 | A kind of determination method of seamless steel pipe hot heading machine tup arm segmentation oblique form |
| CN109954803A (en) * | 2017-12-26 | 2019-07-02 | 重庆达德机械制造有限公司 | A kind of automation nozzle docking pipe reduction device |
| CN110640035A (en) * | 2019-08-29 | 2020-01-03 | 松阳永信机械制造有限公司 | Seamless pipe head reducing machine |
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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: 20121003 Termination date: 20160923 |