CN201147772Y - Quick-lift attachment of three-roll skew rolling pipe mill - Google Patents
Quick-lift attachment of three-roll skew rolling pipe mill Download PDFInfo
- Publication number
- CN201147772Y CN201147772Y CNU2007201381735U CN200720138173U CN201147772Y CN 201147772 Y CN201147772 Y CN 201147772Y CN U2007201381735 U CNU2007201381735 U CN U2007201381735U CN 200720138173 U CN200720138173 U CN 200720138173U CN 201147772 Y CN201147772 Y CN 201147772Y
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- cylinder
- quick
- roll
- plunger
- cylinder body
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Abstract
The utility model provides a quick lifting device used in a three-roller slant mill, which comprises a lifting cylinder, a pry bar and quick-opening cylinders. The quick lifting device is characterized by having two quick-opening cylinders; and the quick-opening cylinder is a plunger-type cylinder consisting of a plunger, a press cover and a cylinder body; wherein, the bottom of the cylinder body is provided with a damping hole, and the stroke of the cylinder body is determined by the distance between the plunger and the cylinder body. As the damping hole is arranged at the bottom of the quick-opening cylinder, the head of the plunger does not hit the cylinder body fiercely, thereby further prolonging the service life of the quick-opening cylinder. In addition, two quick-opening cylinders are used in the quick lifting device to make the lifting effect remarkable, thereby meeting the requirements of different rolling manners during producing seamless steel tubes.
Description
Technical field
The utility model belongs to rolling machinery, specially refers to the quick-lift attachreactor of the roller trio skew rolling pipe machine in the seamless steel tube production.
Background technology
In seamless steel tube production, roller trio skew rolling pipe machine can produce the tail triangle when the rolled steel tube afterbody, and in order to overcome such defective, advanced now method is to adopt quick-lift attachreactor to lift roll, so that rolling the carrying out smoothly of steel pipe afterbody.Existing quick-lift attachreactor as shown in Figure 1, by lift cylinder 6, lift up bar 5, open cylinder 3 etc. soon and form; Lifting up bar 5 is installed on the rotary drum 4, the two ends of lifting up bar 5 are connected with one respectively and open cylinder 3 and a plunger body 31 soon, the lower end of opening cylinder 3 and plunger body 31 soon closely contacts with roll-box 2, a roll 1 is equipped with in the inside of roll-box 2, and the gudgeon of the upper end of roll-box 2 is connected with a lift cylinder 6, lift cylinder 6 is strained roll-box 2 together with roll 1 always, roll-box 2 is slidingly connected with rotary drum 4 by dress bearing block 7 thereon, when lift cylinder 6 upwards promoted roll 1, bearing block 7 was done relative motion with rotary drum 4.The described cylinder 3 of opening soon is plunger cases, as shown in Figure 2, opens cylinder 3 soon and is made up of plunger 8, snap ring 1 and cylinder body 10 etc.; The stroke of cylinder is decided by the distance of snap ring 1 and cylinder body 10, when lifting device upwards promotes roll, finishes by opening cylinder 3 rapid pressure releases soon.
The restriction of opening the cylinder stroke soon of this existing quick-lift attachreactor by be installed in the cylinder body outside column beyond the Great Wall snap ring 1 contact with colliding of cylinder body 10 and stop realizing, because snap ring 1 has produced rigid bump with cylinder body 2 during the quick rollback of plunger, often cut off snap ring, and cause that to open cylinder soon low service life, thereby have influence on the normal operation of production.
Summary of the invention
The purpose of this utility model is to overcome above the deficiencies in the prior art, provides a kind of and operates steadily, do not have rigid bump, the quick-lift attachreactor of the roller trio skew rolling pipe machine of long service life.
The technical scheme of the quick-lift attachreactor of the utility model roller trio skew rolling pipe machine is to realize like this.
Roller trio skew rolling pipe machine quick-lift attachreactor comprises lift cylinder, lifts up bar, opens cylinder soon; Be characterized in: the described bar of lifting up is installed on the rotary drum, the two ends of lifting up bar are connected with two and open cylinder soon, the lower end of opening cylinder soon closely contacts with roll-box, a roll is equipped with in the inside of roll-box, and the gudgeon of the upper end of roll-box is connected with a lift cylinder, and lift cylinder is strained roll-box together with roll always; Roll-box is slidingly connected by dress bearing block and rotary drum thereon, and when lift cylinder upwards promoted roll, bearing block and rotary drum were done relative motion.
The described cylinder of opening soon is a plunger case, is made up of plunger, gland and cylinder body; Cylinder base has damping hole, and the stroke of cylinder is determined by the distance between plunger and the cylinder body.
Damping hole place, bottom in the described cylinder body is provided with the trapped fuel chamber, plunger is provided with piston section and damper piston section, damper piston section and trapped fuel chamber coupling, and the oil pressure in trapped fuel chamber gone into damping hole is adorned plunger by being threaded in screw thread on the gland and the cylinder body and to be pressed in the cylinder body.
A kind of roller trio skew rolling pipe machine quick-lift attachreactor provided by the utility model owing to damping hole is arranged opening cylinder cylinder base design soon, makes plunger head and cylinder body not produce rigid bump compared with prior art, has further prolonged the service life of opening cylinder soon.Use two and open cylinder soon, make the lifting effect remarkable, can satisfy the demand of multiple different rolling modes in the seamless steel tube production.
Description of drawings
Fig. 1 is the structural representation of existing roller trio skew rolling pipe machine quick-lift attachreactor;
Fig. 2 be existing roller trio skew rolling pipe machine quick-lift attachreactor open the cylinder structure schematic diagram soon;
Fig. 3 is the structural representation of the utility model roller trio skew rolling pipe machine quick-lift attachreactor;
Fig. 4 be the utility model roller trio skew rolling pipe machine quick-lift attachreactor open the cylinder structure schematic diagram soon;
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Shown in Figure 3, the structure chart of the utility model roller trio skew rolling pipe machine quick-lift attachreactor, it comprises lift cylinder 6, lifts up bar 5, opens cylinder 3 etc. soon; Lifting up bar 5 is installed on the rotary drum 4, the two ends of lifting up bar 5 are connected with two and open cylinder 3 soon, the lower end of opening cylinder 3 soon closely contacts with roll-box 2, a roll 1 is equipped with in the inside of roll-box 2, and the gudgeon of the upper end of roll-box 2 is connected with a lift cylinder 6, and lift cylinder 6 is strained roll-box 2 together with roll 1 always, and roll-box 2 is slidingly connected with rotary drum 4 by dress bearing block 7 thereon, when lift cylinder 6 upwards promoted roll 1, bearing block 7 was done relative motion with rotary drum 4.
Shown in Figure 4, the utility model roller trio skew rolling pipe machine quick-lift attachreactor open cylinder structure figure soon.It is opened the cylinder general structure soon and is still a plunger case, is made up of plunger 11, cylinder body 10 etc.; Have damping hole 13 on the cylinder body, the stroke of cylinder is determined by the distance of plunger and cylinder body.When described lifting device upwards promotes roll, finish by opening the cylinder 3 interior rapid pressure releases of liquid medium soon; When plunger 11 stops with contacting of cylinder body 10 promoting, in pressure leak process, be subjected to the restriction of damping hole 13 owing to open the interior liquid medium of cylinder soon, and realized the collisionless contact.
Claims (3)
1, a kind of quick-lift attachreactor of roller trio skew rolling pipe machine comprises lift cylinder (6), lifts up bar (5), opens cylinder (3) soon; It is characterized in that: the described bar (5) of lifting up is installed on the rotary drum (4), the two ends of lifting up bar are connected with two and open cylinder soon, the lower end of opening cylinder soon closely contacts with roll-box (2), a roll (1) is equipped with in the inside of roll-box, and the gudgeon of the upper end of roll-box is connected with a lift cylinder, and lift cylinder is strained roll-box together with roll always.
2, the quick-lift attachreactor of roller trio skew rolling pipe machine according to claim 1, it is characterized in that: the described cylinder of opening soon is a plunger case, form with cylinder body (10) by plunger (8), gland (9), cylinder base has damping hole (13), and the stroke of cylinder is determined by the distance between plunger and the cylinder body.
3, the quick-lift attachreactor of roller trio skew rolling pipe machine according to claim 2, it is characterized in that: the bottom damping hole (13) in the described cylinder body (10) locates to be provided with trapped fuel chamber (16), plunger (11) is provided with piston section (14) and damper piston section (15), damper piston section and trapped fuel chamber coupling, and the oil pressure in trapped fuel chamber gone into damping hole, go up being threaded in screw thread and the cylinder body by gland (9) and plunger adorned be pressed in the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201381735U CN201147772Y (en) | 2007-12-01 | 2007-12-01 | Quick-lift attachment of three-roll skew rolling pipe mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201381735U CN201147772Y (en) | 2007-12-01 | 2007-12-01 | Quick-lift attachment of three-roll skew rolling pipe mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147772Y true CN201147772Y (en) | 2008-11-12 |
Family
ID=40115540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201381735U Expired - Fee Related CN201147772Y (en) | 2007-12-01 | 2007-12-01 | Quick-lift attachment of three-roll skew rolling pipe mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147772Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912878A (en) * | 2010-08-05 | 2010-12-15 | 太原通泽重工有限公司 | Open-rack three-roller oblique rolling extender |
| CN101773940B (en) * | 2009-12-23 | 2011-09-07 | 太原通泽重工有限公司 | Hold-down balancing mechanism of rotary frame overall replacing three-roll pipe mill |
| CN105499272A (en) * | 2015-12-31 | 2016-04-20 | 林州凤宝管业有限公司 | Pipe binding device of thin wall seamless steel pipe hot mill |
-
2007
- 2007-12-01 CN CNU2007201381735U patent/CN201147772Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773940B (en) * | 2009-12-23 | 2011-09-07 | 太原通泽重工有限公司 | Hold-down balancing mechanism of rotary frame overall replacing three-roll pipe mill |
| CN101912878A (en) * | 2010-08-05 | 2010-12-15 | 太原通泽重工有限公司 | Open-rack three-roller oblique rolling extender |
| CN105499272A (en) * | 2015-12-31 | 2016-04-20 | 林州凤宝管业有限公司 | Pipe binding device of thin wall seamless steel pipe hot mill |
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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: 20081112 Termination date: 20161201 |