CN201049356Y - Roller depressing device for three-roller limiting mandrel tandem rolling pipe machine - Google Patents
Roller depressing device for three-roller limiting mandrel tandem rolling pipe machine Download PDFInfo
- Publication number
- CN201049356Y CN201049356Y CNU2007200958622U CN200720095862U CN201049356Y CN 201049356 Y CN201049356 Y CN 201049356Y CN U2007200958622 U CNU2007200958622 U CN U2007200958622U CN 200720095862 U CN200720095862 U CN 200720095862U CN 201049356 Y CN201049356 Y CN 201049356Y
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- cylinder
- worm gear
- roller
- middle shell
- screw
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Abstract
The utility model belongs to a metal pipe mill, in particular to a roll screw-down device of a three-roll retained mandrel pipe mill. The utility model is characterized in that: the utility model mainly comprises an upper shell, a middle shell and a lower shell which are orderly connected with one another, a worm gear pair, a screw rod pair, a quick-open protection cylinder and an electromagnetic sucking disc, wherein, the worm gear pair is connected with the upper shell; a worm gear of the worm gear pair is connected with a screw rod of the screw rod pair through a spline; the screw rod is fixedly connected in the upper shell and the middle shell through a bearing; the quick-open protection cylinder is arranged on the middle shell; the middle shell is a cylinder, a piston is arranged in the middle shell; the upper end of the cylinder is fixed with a cylinder cover; the top of the piston is fixed with a nut of the screw rod pair; the lower top end of the screw rod is connected with the electromagnetic sucking disc which is fixed with a connecting cover at the lower end of the screw rod through a gland bush. The utility model has the advantages that: the utility model adopts the roll screw-down device to replace the servo hydraulic screw-down device to realize the roll gap control, and has simple structure, low investment cost as well as quick and convenient main frame replacement.
Description
Technical field
The utility model belongs to the metal pipe mill, relates in particular to a kind of three roller retained mandrel tandem rolling tube machine roller bitings.
Background technology
At present domestic newly-built and what depress employing at the three-roller tandem rolling tube machine roll of founding a capital is the servo-hydraulic screwdown gear, realize roll gap control.For example, the PQF pipe mill that the newly-built 168mm unit of Tianjin steel Pipe Co., Ltd. adopts is climbed into Chengdu iron and steel Co., Ltd of steel group and is being built the PQF pipe mill that the 177mm unit adopts in the seamless steel tubing mill of the new Steel stock Co., Ltd of FQM pipe mill and Anshan that builds the employing of 159mm unit.Though the servo-hydraulic screwdown gear has its rack construction compactness, can realize dynamically adjusting under the as-rolled condition advantage such as roll gap, because the hydraulic system cost of investment and the very high scope that then limits its popularization of maintenance cost that dispose.Such cost is difficult to bear for medium-sized and small enterprises.Demand improving the three-roller tandem rolling tube machine roller biting in the industry urgently, with the needs of following enterprise development in satisfying.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of three roller retained mandrel tandem rolling tube machine roller bitings are provided, and adopts the leading screw screwdown gear to replace the servo-hydraulic screwdown gear to realize roll gap control, and is simple in structure, cost of investment is low.The replacing frame is quick and easy.
The utility model for achieving the above object; by the following technical solutions: a kind of three roller retained mandrel tandem rolling tube machine roller bitings; it is characterized in that: mainly by last; in; the following housing that connects successively; worm gear; lead screw pair; open the protection cylinder soon; magnechuck is formed; described worm gear is connected with upper shell; the worm gear of worm gear is connected by spline with the leading screw of lead screw pair; described leading screw is connected by bearing fixing; in the middle shell; the described protection cylinder of opening soon is located on the middle shell; middle shell is a cylinder body; be provided with piston in it; the fixedly connected cylinder cap in cylinder body upper end; the screw of the fixedly connected lead screw pair of described piston tip; the top is connected with magnechuck under the leading screw, and magnechuck is fixedlyed connected with the adapter sleeve of leading screw lower end by gland.
Described piston two ends of opening the protection cylinder soon respectively are provided with a screw.
Described middle shell lower end with on leading screw axis plane, be arranged with the compensating cylinder that can eliminate the leading screw gap, the piston rod top of described compensating cylinder is equipped with spheric washer and is fastened on by nut on the cap of lower house.
The beneficial effects of the utility model: adopt the leading screw screwdown gear to replace the servo-hydraulic screwdown gear to realize roll gap control, simple in structure, cost of investment is low.The replacing frame is quick and easy.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
As shown in the figure; a kind of three roller retained mandrel tandem rolling tube machine roller bitings; mainly by last; in; the following housing 1 that connects successively; 2; 3; worm gear 4; lead screw pair 5; open protection cylinder 6 soon; magnechuck 7 is formed; described worm gear is fixedlyed connected with upper shell; the worm gear 4-1 of worm gear is connected by spline with the leading screw 5-1 of lead screw pair; described leading screw is fixedly connected on by bearing 8; in the middle shell; the described protection cylinder 6 of opening soon is located on the middle shell; middle shell 2 is a cylinder body; be provided with piston 6-1 in it; the fixedly connected cylinder cap 6-2 in cylinder body upper end; the screw 5-2 of the fixedly connected lead screw pair of described piston tip or two ends respectively are provided with a screw; the top is connected with magnechuck 7 under the leading screw, and magnechuck is fixedlyed connected with the adapter sleeve 10 of leading screw lower end by gland 9.Described middle shell lower end with on leading screw axis plane, be arranged with the compensating cylinder 11 that can eliminate the leading screw gap, the piston rod 11-1 top of described compensating cylinder is equipped with spheric washer 12 and is fastened on by round nut 13 on the cap of lower house.Operation principle: roll is depressed and is driven leading screw by buncher (or hydraulic motor) (not shown) by worm gear and rotate and realize that the size that depressing position sensor (not shown) is controlled roll gap is equipped with in the leading screw upper end simultaneously.Screwdown gear is connected with roll device 14 by magnechuck, and the magnechuck energising produces suction in the milling train course of work, is connected as a single entity with roll device.When needing to change roll stand, magnechuck outage suction disappears, and frame can quick and easy pulling out from support.The effect of opening the protection cylinder soon is that when rolling the card accident, oil cylinder can drive roll device and lift fast, is convenient to the processing accident; Its hydraulic circuit has overload protection function, can prevent effectively in particular cases that roll-force is excessive and damages plant equipment.The effect of compensating cylinder is to eliminate the leading screw gap, generation impact when avoiding rolled piece to nip roll.This structure tests successfully on my the serial pipe mill of company (TCM), has obtained good Expected Results.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. roller retained mandrel tandem rolling tube machine roller biting; it is characterized in that: mainly by last; in; the following housing that connects successively; worm gear; lead screw pair; open the protection cylinder soon; magnechuck is formed; described worm gear is connected with upper shell; the worm gear of worm gear is connected by spline with the leading screw of lead screw pair; described leading screw is connected by bearing fixing; in the middle shell; the described protection cylinder of opening soon is located on the middle shell; middle shell is a cylinder body; be provided with piston in it; the fixedly connected cylinder cap in cylinder body upper end; the screw of the fixedly connected lead screw pair of described piston tip, the top is connected with magnechuck under the leading screw, and magnechuck is fixedlyed connected with the adapter sleeve of leading screw lower end by gland.
2. three roller retained mandrel tandem rolling tube machine roller bitings according to claim 1 is characterized in that: described piston two ends of opening the protection cylinder soon respectively are provided with a screw.
3. three roller retained mandrel tandem rolling tube machine roller bitings according to claim 1, it is characterized in that: described middle shell lower end with on leading screw axis plane, be arranged with the compensating cylinder that can eliminate the leading screw gap, the piston rod top of described compensating cylinder is equipped with spheric washer and is fastened on by nut on the cap of lower house.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958622U CN201049356Y (en) | 2007-04-25 | 2007-04-25 | Roller depressing device for three-roller limiting mandrel tandem rolling pipe machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958622U CN201049356Y (en) | 2007-04-25 | 2007-04-25 | Roller depressing device for three-roller limiting mandrel tandem rolling pipe machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201049356Y true CN201049356Y (en) | 2008-04-23 |
Family
ID=39335837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200958622U Expired - Fee Related CN201049356Y (en) | 2007-04-25 | 2007-04-25 | Roller depressing device for three-roller limiting mandrel tandem rolling pipe machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201049356Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327931A (en) * | 2011-07-26 | 2012-01-25 | 太原通泽重工有限公司 | Pressurized overload protection device of straightening machine |
| CN113498364A (en) * | 2019-02-28 | 2021-10-12 | Sms集团有限公司 | Rolling stand for rolling metal material |
-
2007
- 2007-04-25 CN CNU2007200958622U patent/CN201049356Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327931A (en) * | 2011-07-26 | 2012-01-25 | 太原通泽重工有限公司 | Pressurized overload protection device of straightening machine |
| CN113498364A (en) * | 2019-02-28 | 2021-10-12 | Sms集团有限公司 | Rolling stand for rolling metal material |
| CN113498364B (en) * | 2019-02-28 | 2023-08-11 | Sms集团有限公司 | Rolling mill stand for rolling metal material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN JUNSHENG SETS EQUIPMENT CO., LTD. Free format text: FORMER OWNER: TIANJIN JUNSHENG ELECTROMECHANICAL DRIVING ENGINE CO., LTD. Effective date: 20100519 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100519 Address after: 300300 No. five, No. 56, weft Road, Dongli Economic Development Zone, Tianjin Patentee after: Tianjin Junsheng Complete Equipment Co., Ltd. Address before: 300300 No. five, No. 56, weft Road, Dongli Economic Development Zone, Tianjin Patentee before: Tianjin Junsheng Mechanic Electric Drives Engineering Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20130425 |