CN104438346B - Holding-down device of hydraulic and tunnel type seamless steel pipe rolling mill - Google Patents
Holding-down device of hydraulic and tunnel type seamless steel pipe rolling mill Download PDFInfo
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- CN104438346B CN104438346B CN201410795829.5A CN201410795829A CN104438346B CN 104438346 B CN104438346 B CN 104438346B CN 201410795829 A CN201410795829 A CN 201410795829A CN 104438346 B CN104438346 B CN 104438346B
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Abstract
The present invention proposes a kind of holding-down device of hydraulic and tunnel type seamless steel pipe rolling mill, and holding-down device of hydraulic includes hydraulic cylinder for reduction system, balance hydraulic cylinder, rolling-mill housing and rotating driving device.The outer end of the pressure piston of hydraulic cylinder for reduction system is provided with sphere pressure head；The drawhead of balance hydraulic cylinder includes base portion and at least one protuberance, rolling-mill housing includes roll, holding section and interface channel, described drawhead can stretch to described holding section from this interface channel, described rotating driving device drives described pull bar to rotate an angle, drawhead is made to be sticked in described holding section, so that described rolling-mill housing being lock onto sphere pressure head when pull bar retreats.Holding-down device of hydraulic of the present invention drives pull bar to rotate by rotating driving device, drawhead and rolling-mill housing can be made easily to fasten or be kept completely separate, thus dismantle rolling-mill housing quickly and easily, rolling-mill housing is avoided to collide with drawhead, moreover it is possible to multi rack rolling-mill housing pulled out simultaneously or push tandem mill support.
Description
Technical field
The present invention relates to a kind of holding-down device of hydraulic and to have the tunnel type of this holding-down device of hydraulic seamless
Steel pipe rolling mill.
Background technology
Tunnel type seamless steel pipe rolling mill is one of main frame of steel pipe connecting rolling line, and holding-down device of hydraulic is this
Class pipe mill important component part, its performance has decision to quality and the whole unit productivity ratio of finished product
The impact of property.
Being illustrated in figure 1 existing holding-down device of hydraulic, it includes hydraulic cylinder for reduction system 1, balance hydraulic cylinder
2 and rolling-mill housing 3.
Hydraulic cylinder for reduction system 1 includes depressing piston 11, front end-plate 12, end plate 13, cylinder 14 and drawing outward
Bar 15, front end-plate 12 and end plate 13 are positioned at the two ends of cylinder 14, and pressure piston 11 is arranged at cylinder
14 is internal, and stretches out from the front end of cylinder 14, and outside link 15 passes front end-plate 12 and end plate 13,
Front end-plate 12, end plate 13, cylinder 14 are fixed together.Set in the outer end of pressure piston 11
There is sphere pressure head 16.End plate 13 is also associated with rear end support 17.
Balance hydraulic cylinder 2 is arranged on rear end support 17, and it has one and is arranged in pressure piston 11
Pull bar 21, the two ends of this pull bar 21 reach pressure piston 11 outside, in the leading section of pull bar 21
Connecting and have drawhead 22, this drawhead 22 is a discoid parts, is used for connecting rolling-mill housing 3.
Rolling-mill housing 3 includes roller base 32, roll 31 and roller bracket 33.Roll 31 is arranged on and rolls
On roller seat 32, roll 31 can contact with steel pipe, steel pipe is applied pressure, in order to rolled steel tube.Roll
Roller support 33 is connected with roller base 32, is provided with holding section and the company of groove type on roller bracket 33
Connect road, during as in figure 2 it is shown, rolling-mill housing 3 is promoted along the direction vertical with pull bar 21, draw
Head 22 can enter into holding section, and pull bar 21 enters in interface channel.
In work, the rod chamber of hydraulic cylinder for reduction system 1 and rodless cavity inject the hydraulic oil of different pressures, by liquid
The pressure reduction of force feed promotes pressure piston 11, is delivered on roller bracket 33 by sphere pressure head 16, balance
Roller bracket 33 is pressed on by sphere pressure head 16 by pull bar 21 and drawhead 22 by hydraulic cylinder 2,
Eliminate gap, thus reach the most accurately to adjust the purpose of roller gap.
The holding-down device of hydraulic of prior art, when shutting down replacing rolling-mill housing 3, the pressure of screwdown gear
Lower piston 11 is fully retracted in master cylinder, and balance hydraulic cylinder 2 drives pull bar 21 protruding, makes roll
Support 33 disengages with sphere pressure head 16.Due to roller bracket 33 itself gravity and with frame
Friction effects, the roller bracket 33 of diverse location can stop at different positions when screwdown gear off-load
Put, and drawhead 22 can not completely disengage from roller bracket 33, it is necessary to rely on and manually carry out in real time
Monitoring, between the overhang of the pull bar 21 of adjustment diverse location roller bracket 33 correspondence is to ensure in turn
Gap, so could pull out rolling-mill housing 3 respectively, and efficiency is low and technical merit to operative employee
Require height, and easily produce collision and then damage pull bar 21 and a whole set of screwdown gear.
Summary of the invention
It is an object of the present invention to overcome above-mentioned the deficiencies in the prior art, it is provided that one can facilitate soon
The holding-down device of hydraulic of quick-detach rolling-mill housing.
Another object of the present invention is to provide a kind of seamless steel of tunnel type with this holding-down device of hydraulic
Pipe tandem mill.
According to an aspect of the present invention, a kind of holding-down device of hydraulic, it is applied to tunnel type seamless steel pipe even
Milling train, comprising: hydraulic cylinder for reduction system, it has a pressure piston, in the outer end of described pressure piston
It is provided with sphere pressure head；Balance hydraulic cylinder, it has a pull bar being arranged in described pressure piston, described
The two ends of pull bar stretch out pressure piston outside, the leading section of described pull bar connect have drawhead, described in draw
Head includes that the base portion being connected with described pull bar and at least one evagination are in the protuberance of described base portion；Roll
Machine frame, it includes a roll, is additionally provided with a holding section and a connection channel in described rolling-mill housing,
Described drawhead can stretch to described holding section, and rotating driving device from this interface channel, its with
Pull bar is connected and drives described pull bar to rotate an angle, makes drawhead be sticked in described holding section, so that
Described rolling-mill housing is lock onto sphere pressure head when retreating by pull bar.
According to an embodiment of the present invention, described rolling-mill housing also includes that a roller base and a roll prop up
Frame, described roll is installed on described roller base, and described roller bracket is fixing with described roller base to be connected, institute
State roller bracket and there is an end plane that can fit with sphere pressure head, described interface channel and holding section
Being arranged at this roller bracket, described interface channel is communicated in the outside of this end plane.
According to an embodiment of the present invention, described holding section is the axis that an edge is perpendicular to described pull bar
The through slot that direction is arranged.
According to an embodiment of the present invention, described interface channel is the inner face that its inner face is parallel to holding section
Through slot.
According to an embodiment of the present invention, described drawhead is plate, and described protuberance is set to two
Individual, and said two protuberance is arranged symmetrically in the both sides of base portion.
According to an embodiment of the present invention, described rotating driving device is for being arranged on hydraulic cylinder for reduction system with flat
Rotating hydraulic cylinder between weighing apparatus hydraulic cylinder.
According to an embodiment of the present invention, described rotating driving device drives pull bar to be rotated by original position
Angle be 20 ° to 90 °.
According to another aspect of the present invention, a kind of tunnel type seamless steel pipe rolling mill, it includes above-mentioned
Holding-down device of hydraulic.
As shown from the above technical solution, advantages of the present invention and having the active effect that
Holding-down device of hydraulic of the present invention, by arranging protuberance and driving dress with rotating on drawhead
Put and drive pull bar to rotate, it is possible to make drawhead and rolling-mill housing fasten or be kept completely separate easily,
It is thus possible to dismantle rolling-mill housing quickly and easily, it is to avoid rolling-mill housing collides with drawhead, also
Multi rack rolling-mill housing can be pulled out simultaneously or push tandem mill support.
Accompanying drawing explanation
Its example embodiment is described in detail, above and other feature of the present invention and excellent by referring to accompanying drawing
Point will be apparent from.
Fig. 1 is the structural representation of existing holding-down device of hydraulic；
Fig. 2 is line A-A sectional view in Fig. 1；
Fig. 3 is the structural representation of embodiment of the present invention holding-down device of hydraulic；
Fig. 4 is line A-A sectional view in Fig. 3；
Fig. 5 is the schematic diagram of roller bracket in Fig. 3；
Fig. 6 is the schematic diagram of drawhead in the figure embodiment of the present invention.
Detailed description of the invention
It is described more fully with example embodiment referring now to accompanying drawing.But, example embodiment can
Implement in a variety of forms, and be not understood as limited to embodiment set forth herein；On the contrary, it is provided that this
A little embodiments make the present invention will fully and completely, and the design of example embodiment are passed on all sidedly
To those skilled in the art.Reference identical in figure represents same or similar structure, thus will
Omit their detailed description.
Being illustrated in figure 1 a kind of holding-down device of hydraulic disclosed in the embodiment of the present invention, it is applied to tunnel type
Seamless steel pipe rolling mill.This holding-down device of hydraulic includes hydraulic cylinder for reduction system 1, balance hydraulic cylinder 2, milling train
Frame 3 and rotating driving device.
Hydraulic cylinder for reduction system 1 includes depressing piston 11, front end-plate 12, end plate 13, cylinder 14 and drawing outward
Bar 15.Front end-plate 12 and end plate 13 are positioned at the two ends of cylinder 14, and pressure piston 11 is arranged at cylinder
14 is internal, and stretches out from the front end of cylinder 14.Outside link 15 passes front end-plate 12 and end plate 13,
Front end-plate 12, end plate 13, cylinder 14 are fixed together.Set in the outer end of pressure piston 11
There is sphere pressure head 16.End plate 13 is also associated with a rear end support 17.
Balance hydraulic cylinder 2 is arranged on rear end support 17, and it has one and is arranged in pressure piston 11
Pull bar 21, the two ends of this pull bar 21 reach pressure piston 11 outside, in the leading section of pull bar 21
Connect and have drawhead 22.Seeing Fig. 6, this drawhead 22 includes that a base portion 221 is dashed forward with at least one
Go out portion 222.In the present embodiment, drawhead 22 is to be formed by a disk cutting, the central part of this disk
Position is base portion 221, is parallel to each other and after the line of cut cutting symmetrical with the center of circle along two by disk,
Two ends on its longitudinal direction formed become two protuberances 222, therefore, the two protuberance 222
Completely symmetrically it is distributed in the both sides of base portion 221.In other embodiments of the present invention, base portion 221 is with prominent
Go out portion 222 and can also use other forms.As utilized connecting rod form etc..
Seeing Fig. 3, Fig. 4 and Fig. 5, rolling-mill housing 3 includes roll 31, roller base 32 and roller bracket
33.Roll 31 is arranged on roller base 32, and it can contact with steel pipe, and steel pipe is applied pressure, with
Just rolled steel tube.Roller bracket 33 is connected with roller base 32, is provided with engaging on roller bracket 33
Portion 331 and interface channel 332.Rolling-mill housing 3 may be used without other forms, as by roller base 32 with roll
Roller support 33 is integrated into a single component.
Being provided with a laminating plane 333 on roller bracket 33, this laminating plane 333 can be with roller base
32 fit together, it is then possible to roller bracket 33 and roller base 32 are fixedly connected with bolt.
The end face of one end away from laminating plane 333 at roller bracket 33 be one flat with plane 333 of fitting
The end plane 334 of row, this end plane 334 can fit together with sphere pressure head 16.Work as end
When plane 334 is fitted in sphere pressure head 16, pull bar 21 stretches out from balance hydraulic cylinder 2, it is possible to make to draw
Head 22 arrives the inside of holding section 331 through interface channel 332.
Holding section 331 can be the through slot that an edge is perpendicular to that the direction of the axis of pull bar 21 is arranged,
Described interface channel 332 can be the through slot that its inner face is parallel to the inner face of holding section 331, such energy
Enough facilitate holding section 331 and the processing of interface channel 332.Interface channel 332 makes holding section 331 connect
Outside in end plane 334.The width of interface channel 332 is more than the protuberance 222 of drawhead 22
Width, but be less than the length between the end of two protuberances 222.When protuberance 222 connects with this
When connection road 332 is parallel, drawhead 22 can be entered in holding section 331 by interface channel 332.
Seeing Fig. 3 and Fig. 4, in the present embodiment, rotating driving device is one to be arranged on hydraulic cylinder for reduction system
Rotating hydraulic cylinder 4 between 1 and balance hydraulic cylinder 2.This rotating hydraulic cylinder 4 and hydraulic cylinder for reduction system 1
End plate 13 is connected.Pull bar 21 can and balance hydraulic cylinder 2 between a bearing is set, make pull bar 21
Can rotate relative to balance hydraulic cylinder 2, when pull bar 21 moves along a straight line, rotating hydraulic cylinder 4 is not embraced
It is combined on this pull bar 21, and after pull bar 21 linear motion puts in place, rotating hydraulic cylinder 4 can exist with obvolvent
On pull bar 21, pull bar 21 is then driven to rotate.End plane 334 at roller bracket 33 is moved
To near sphere pressure head 16 and almost parallel with the contact surface of this sphere pressure head 16 time, balance can be started
Hydraulic cylinder 2, makes pull bar 21 protruding, in now drawhead 22 enters into holding section 331.Pull bar
After 22 enter in holding section 331, rotating hydraulic cylinder 4 applies rotating force to pull bar 21,
Make it rotate an angle around own axes, make drawhead 22 be sticked in holding section 331.At drawhead
During 22 retrogressing, it will be unable to depart from holding section 331, thus, pull bar 21 can will roll when retreating
Machine frame 3 lock onto sphere pressure head 16.Rotating hydraulic cylinder 4 drives angle that pull bar 21 rotates preferably
Can be to be rotated 20 ° to 90 ° by original position.In the present embodiment, protuberance 222 symmetry is set to 2,
The rotational angle of pull bar 21 can more preferably 90 °.In other embodiments of the present invention, protuberance
The quantity of 222 is it can also be provided that 3 the most multiple, and now, the rotational angle of pull bar 21 can phase
Should reduce on ground.Additionally, the rotating driving device of the present embodiment can also use other actuating units, as respectively
Plant electromagnetic drive mechanism etc., be not limited to rotating hydraulic cylinder.
When dismantling rolling-mill housing 3, the pressure piston 11 of hydraulic cylinder for reduction system 1 is first made to fall back on pressure backward
Lower hydraulic cylinder 1 is internal, and then, pull bar 21 travels forward, and it promotes rolling-mill housing 3 and sphere pressure head
16 depart from, and now, rotating hydraulic cylinder 4 rotates, and it drives pull bar 21 to rotate 90 °, then, pull bar
21 retreat, and drawhead 22 can completely disengage from rolling-mill housing 3.Drawhead 22 and rolling-mill housing 3
After disengaging, rolling-mill housing 3 can be moved freely, now will not drawhead 22 be caused any
Damage.
The embodiment of the invention also discloses a kind of tunnel type seamless steel pipe rolling mill, it has the present embodiment
Holding-down device of hydraulic.
More than it is particularly shown and described the illustrative embodiments of the present invention.It should be understood that the present invention
It is not limited to disclosed embodiment, on the contrary, it is intended to contain the essence being included in claims
Various amendments in god and scope and equivalent arrangements.
Claims (8)
1. a holding-down device of hydraulic, is applied to tunnel type seamless steel pipe rolling mill, it is characterised in that
Comprising:
Hydraulic cylinder for reduction system (1), it has a pressure piston (11), described pressure piston (11)
Outer end is provided with sphere pressure head (16)；
Balance hydraulic cylinder (2), it has a pull bar (21) being arranged in described pressure piston (11),
The two ends of described pull bar (21) are stretched out outside pressure piston (11), in the front end of described pull bar (21)
Portion connects has drawhead (22), described drawhead (22) to include the base being connected with described pull bar (21)
Portion (221) and at least one evagination are in the protuberance (222) of described base portion (221)；
Rolling-mill housing (3), it includes a roll (31), is additionally provided with one in described rolling-mill housing (3)
Holding section (331) and a connection channel (332), the degree of depth of described holding section (331) is more than described
The thickness of drawhead (22), described drawhead (22) can stretch to from this interface channel (332)
Described holding section (331), and
Rotating driving device, it is connected with pull bar (21) and drives described pull bar (21) to rotate one jiao
Degree, makes drawhead (22) be sticked in described holding section (331), so that by institute when pull bar (21) retreats
State rolling-mill housing (3) and lock onto sphere pressure head (16).
Holding-down device of hydraulic the most according to claim 1, it is characterised in that: described rolling-mill housing
(3) also including a roller base (32) and a roller bracket (33), described roll (31) is installed on institute
Stating roller base (32), described roller bracket (33) is fixing with described roller base (32) to be connected, described
Roller bracket (33) has an end plane (334) that can fit with sphere pressure head (16), described
Interface channel (332) and holding section (331) are arranged at this roller bracket (33), described interface channel
(332) outside of this end plane (334) it is communicated in.
Holding-down device of hydraulic the most according to claim 2, it is characterised in that: described holding section (331)
It it is a through slot arranged along the direction of the axis being perpendicular to described pull bar (21).
Holding-down device of hydraulic the most according to claim 3, it is characterised in that: described interface channel
(332) it is its inner face through slot of being parallel to the inner face of holding section (331).
Holding-down device of hydraulic the most according to claim 4, it is characterised in that: described drawhead (22)
For plate, described protuberance (222) is set to two, and said two protuberance (222) is right
Claim the both sides being arranged in base portion (221).
Holding-down device of hydraulic the most according to claim 1, it is characterised in that: described rotation drives
Device is the rotating hydraulic cylinder (4) being arranged between hydraulic cylinder for reduction system (1) and balance hydraulic cylinder (2).
Holding-down device of hydraulic the most according to claim 1, it is characterised in that: described rotation drives
The angle that device drives pull bar (21) to be rotated by original position is 20 ° to 90 °.
8. a tunnel type seamless steel pipe rolling mill, it is characterised in that: it includes claim 1 to 7
Holding-down device of hydraulic described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795829.5A CN104438346B (en) | 2014-12-19 | 2014-12-19 | Holding-down device of hydraulic and tunnel type seamless steel pipe rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795829.5A CN104438346B (en) | 2014-12-19 | 2014-12-19 | Holding-down device of hydraulic and tunnel type seamless steel pipe rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104438346A CN104438346A (en) | 2015-03-25 |
| CN104438346B true CN104438346B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410795829.5A Active CN104438346B (en) | 2014-12-19 | 2014-12-19 | Holding-down device of hydraulic and tunnel type seamless steel pipe rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104438346B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030882A (en) * | 1987-07-30 | 1989-02-08 | 蓝治成 | Hydraulic press with superhigh pressure for rolling mill |
| CN203230983U (en) * | 2013-05-16 | 2013-10-09 | 肖海斌 | Twisted type joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4740019B2 (en) * | 2006-04-10 | 2011-08-03 | 新日本製鐵株式会社 | Roll changer for rolling mill |
-
2014
- 2014-12-19 CN CN201410795829.5A patent/CN104438346B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030882A (en) * | 1987-07-30 | 1989-02-08 | 蓝治成 | Hydraulic press with superhigh pressure for rolling mill |
| CN203230983U (en) * | 2013-05-16 | 2013-10-09 | 肖海斌 | Twisted type joint |
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| Publication number | Publication date |
|---|---|
| CN104438346A (en) | 2015-03-25 |
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