CN202129268U - Sizing mill for seamless steel pipes - Google Patents
Sizing mill for seamless steel pipes Download PDFInfo
- Publication number
- CN202129268U CN202129268U CN201120188711U CN201120188711U CN202129268U CN 202129268 U CN202129268 U CN 202129268U CN 201120188711 U CN201120188711 U CN 201120188711U CN 201120188711 U CN201120188711 U CN 201120188711U CN 202129268 U CN202129268 U CN 202129268U
- Authority
- CN
- China
- Prior art keywords
- roll
- driven
- seamless steel
- spiral bevel
- driven shafts
- 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 relates to a sizing mill for seamless steel pipes, which comprises a frame. A spindle is rotatably mounted on the frame through bearings, and two drive spiral bevel gears and a first roll are arranged on the spindle. The sizing mill is characterized in that two driven shafts are rotatably mounted on the frame through bearings, an axis of the spindle and axes of the two driven shafts form an equilateral triangle, the driven spiral bevel gears are arranged on the two driven shafts respectively and meshed with the two drive spiral bevel gears, a second roll and a third roll are mounted on the two driven shafts, and the first roll, the second roll and the third roll form a pass. The second roll and the third roll are directly mounted on the driven shafts, the driven spiral bevel gears and the bearings are directly mounted on the driven shafts, the sizes of the bearings are enlarged, and accordingly bending resistance and torsion resistance of the driven shafts are improved, size precision of the seamless steel pipes and form and positional precision of the seamless steel pipes are guaranteed, the seamless steel pipes are convenient and quick in mounting and demounting, maintenance time is shortened, and operating efficiency is improved.
Description
Technical field
The utility model relates to a kind of seamless steel pipe production, especially relates to the sizing mill on a kind of seamless steel tube production chain.
Background technology
The small-sized sizing mill of on the existing seamless steel tube production chain some; As shown in Figure 1; Usually axle 3 ' on all use a long tube spiral bevel gear 1 '; The long tube of roll 4 ' be installed in spiral bevel gear 1 ' on, the long tube spiral bevel gear 1 of so bearing 2 ' all be installed in ' inside, thereby some problem below just having occurred:
1, the diameter dimension of axle is less than normal, and the model of used bearing also diminishes accordingly, thereby makes frame when rolled steel tube, and the bending resistance of roll mandrel and anti-twisting property are all less than normal;
2, because the bending resistance and the anti-twisting property of axle diminish, when producing thick-walled pipe, roll may take place to be had and outwards lets the phenomenon of steel pipe, thereby makes the dimensional accuracy of seamless steel pipe and the accuracy of form and position be difficult to guarantee.
3, owing to use long tube spiral bevel gear, it is inner that bearing all is installed in long tube spiral bevel gear, and therefore, unusual trouble and difficulty in the time of installation and removal increased maintenance time, reduces operating efficiency.
The utility model content
The applicant has carried out research and has improved to above-mentioned problem, and a kind of seamless steel pipe sizing mill is provided; Improve the bending resistance and the anti-twisting property of axle, guarantee the dimensional accuracy and the accuracy of form and position of seamless steel pipe, install and remove convenient and swift simultaneously; Shorten maintenance time, increase work efficiency.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of seamless steel pipe sizing mill; Comprise frame, main shaft is installed on the frame through bearing is rotatable, and main shaft is provided with two the initiatively spiral bevel gear and first rolls; Two driven shafts are installed on the said frame through bearing is rotatable; The axis of the axis of said main shaft and two driven shafts constitutes equilateral triangle, is respectively equipped with driven spiral bevel gear on two driven shafts, driven spiral bevel gear and two initiatively spiral bevel gear engagements; Second roll and the 3rd roll are installed on two driven shafts, and first roll, second roll and the 3rd roll constitute pass.
Further:
Bearing on the said driven shaft is installed in the bearing holder (housing, cover), and said bearing holder (housing, cover) is provided with oilhole.
Said bearing holder (housing, cover) is located by alignment pin.
The technique effect of the utility model is:
The disclosed a kind of seamless steel pipe sizing mill of the utility model, second roll and the 3rd roll are directly installed on the driven shaft, and driven spiral bevel gear and bearing are directly installed on the driven shaft; And the model of increasing bearing; Thereby improve the bending resistance and the anti-twisting property of driven shaft, guarantee the dimensional accuracy and the accuracy of form and position of seamless steel pipe, install and remove convenient and swift simultaneously; Shorten maintenance time, increase work efficiency.
Description of drawings
Fig. 1 is the structural representation of seamless steel pipe sizing mill in the prior art.
Fig. 2 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further detailed explanation.
As shown in Figure 2; The utility model comprises frame 1, and main shaft 2 is installed on the frame 1 through bearing is rotatable, and main shaft 2 is provided with two the initiatively spiral bevel gear 3 and first rolls 4; Two driven shafts 5 are through bearing 6 rotatable being installed on the frame 1; The axis of the axis of main shaft 2 and two driven shafts 5 constitutes equilateral triangle, is respectively equipped with driven spiral bevel gear 7 on two driven shafts 5, driven spiral bevel gear 7 and two initiatively spiral bevel gear 3 engagements; Second roll 8 and the 3rd roll 9 are installed on two driven shafts 5, and first roll 4, second roll 8 and the 3rd roll 9 constitute passes 15.In the present embodiment, the bearing 6 on the driven shaft 5 is installed in the bearing holder (housing, cover) 10, and bearing holder (housing, cover) 10 is provided with oilhole 11, and bearing holder (housing, cover) 10 is by alignment pin 12 location.Driven spiral bevel gear 7 sides have added individual adjusting pad 13, can adjust the backlash of spiral bevel gear through this adjusting pad 13.
Compare with scheme of the prior art among Fig. 1; The utility model will be as the driven spiral bevel gear 7 of the long tube spiral bevel gear 1 of driven pulley ' change into; Increased bearing holder (housing, cover) 10; Bearing 6 is installed in the bearing holder (housing, cover) 10, with respect to the bearing 2 that is installed in a long tube spiral bevel gear 1 ' interior ', the bearing designation of bearing 6 can strengthen relatively; Like Fig. 1, bearing 2 ' lubricating oil be to inject by axle 3 ' interior oilhole of beating, required lubricating oil directly injects through the oilhole on the bearing holder (housing, cover) 10 11 in the utility model bearing 6, in the running can play for preventing bearing holder (housing, cover) 10, by alignment pin 12 location.Through above-mentioned improvement; Second roll 8 and the 3rd roll 9 and driven spiral bevel gear 7 are directly installed on the driven shaft 5; Such structure not only can adopt the bearing of big model, and the diameter of driven shaft 5 obviously strengthens, and the bending resistance and the anti-twisting property of driven shaft 5 have also obviously strengthened; Roll outwards lets the phenomenon of steel pipe also just obviously improve when rolling thick-walled pipe, thereby guarantees the dimensional accuracy and the accuracy of form and position of seamless steel pipe; Simultaneously, the utility model middle (center) bearing all changes outside the installation into, and the obvious like this difficulty that reduces installation and removal is convenient to maintenance, shortens maintenance time, has improved operating efficiency; Through above-mentioned improvement, though whole manufacturing cost slightly increases, overall performance will improve a lot, and cost performance is greatly improved.
Claims (3)
1. seamless steel pipe sizing mill; Comprise frame, main shaft is installed on the frame through bearing is rotatable, and main shaft is provided with two the initiatively spiral bevel gear and first rolls; It is characterized in that: two driven shafts are installed on the said frame through bearing is rotatable; The axis of the axis of said main shaft and two driven shafts constitutes equilateral triangle, is respectively equipped with driven spiral bevel gear on two driven shafts, driven spiral bevel gear and two initiatively spiral bevel gear engagements; Second roll and the 3rd roll are installed on two driven shafts, and first roll, second roll and the 3rd roll constitute pass.
2. according to the described seamless steel pipe sizing mill of claim 1, it is characterized in that: the bearing on the said driven shaft is installed in the bearing holder (housing, cover), and said bearing holder (housing, cover) is provided with oilhole.
3. according to the described seamless steel pipe sizing mill of claim 1, it is characterized in that: said bearing holder (housing, cover) is located by alignment pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120188711U CN202129268U (en) | 2011-06-07 | 2011-06-07 | Sizing mill for seamless steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120188711U CN202129268U (en) | 2011-06-07 | 2011-06-07 | Sizing mill for seamless steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202129268U true CN202129268U (en) | 2012-02-01 |
Family
ID=45518054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120188711U Expired - Fee Related CN202129268U (en) | 2011-06-07 | 2011-06-07 | Sizing mill for seamless steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202129268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759448A (en) * | 2019-02-25 | 2019-05-17 | 临沂金正阳管业有限公司 | A kind of compound heading for seamless steel pipe sizing |
-
2011
- 2011-06-07 CN CN201120188711U patent/CN202129268U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759448A (en) * | 2019-02-25 | 2019-05-17 | 临沂金正阳管业有限公司 | A kind of compound heading for seamless steel pipe sizing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUXI RL PRECISION MACHINERY CO., LTD. Free format text: FORMER NAME: WUXI RUIER FINE MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Ding Shu Zhen Chuan Bu Cun Yixing, Jiangsu city of Wuxi province 214222 Patentee after: Wuxi City riel precision optical machinery company limited Address before: Ding Shu Zhen Chuan Bu Cun Yixing, Jiangsu city of Wuxi province 214222 Patentee before: Wuxi Ruier Fine Machinery Co., Ltd. |
|
| 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: 20120201 Termination date: 20180607 |