CN102327897A - Tappet centering device for perforating machine - Google Patents
Tappet centering device for perforating machine Download PDFInfo
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- CN102327897A CN102327897A CN201110209720A CN201110209720A CN102327897A CN 102327897 A CN102327897 A CN 102327897A CN 201110209720 A CN201110209720 A CN 201110209720A CN 201110209720 A CN201110209720 A CN 201110209720A CN 102327897 A CN102327897 A CN 102327897A
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- centring means
- underframe
- fork
- hydraulic cylinder
- rod
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Abstract
The invention discloses a tappet centering device for a perforating machine, which solves the problems of inaccurate positioning and high possibility of bending of an ejector rod existing in the conventional perforating machine centering device. The device comprises a centering device base frame (7) fixedly arranged on a backstage second-segment base (16) and two lifting screw rod devices (10), wherein upwards output shafts of the two lifting screw rod devices (10) pass through the top surface of the centering device base frame (7) and then are fixedly connected with a supporting roller support (13); two supporting rollers (1) are parallelly arranged on the supporting roller support (13) along the direction of the ejector rod of the perforating machine; an oscillating rod support (3) and a hydraulic cylinder (5) are arranged on a mounting platform (6) respectively; the oscillating rod support (3) is hinged with the middle part of an oscillating rod (4) together through a hinge; the output shaft of the hydraulic cylinder (5) is connected with the tail part of the oscillating rod (4); and a compaction roller (2) is arranged on the head part of the oscillating rod (4). By the device, a tappet can be centered accurately, the requirement of supporting orientation of the ejector rod is met, and the ejector rod is prevented from bending.
Description
Technical field
The present invention relates to a kind of top centring means of punch, particularly a kind of hot rolled seamless steel tube production middle punch machine comes directly towards quick-replaceable top centring means.
Background technology
It is to be formed by rolled by piercing mill that hot rolling does not have the steel pipe of meeting; The basic craft course of drilling/rolling is: form a blind bore type by roll, guide plate, top; High-temperature metal carries out continuous modification in the zone that this pass constitutes, finally shut out hollow hollow billet from solid pipe.Wherein, roll, guide plate are installed according to the technological requirement relative fixed, and the top is installed on the push rod, with the action request of rolling cycle, are rolled the change of position and work back bit period property.Because solid pipe is bored a hole into hollow hollow billet, flow of metal mainly concentrates on the top to be carried out; Come directly towards simultaneously at high-temperature, high pressure operation, thereby be easy to wearing and tearing or nose is pressed heap, cause the top not use for a long time, the top is changed frequent.When the top needs to change fast; Mandril anti-thrust trolley drives the top and arrives the top change bit, and the hydraulic cylinder action in the centring means of top is embraced push rod through three guide rollers; After treating that three hydraulic cylinders actions behind the anti-thrust trolley are released the top forward, the top goes out with hanging blue shift; New top is hung blue new top is moved on to and is changed the position, top, and anti-thrust trolley drives push rod and pushes away forward, and three hydraulic cylinder actions are installed on the top on the push rod.At present, the three-roller centring device of prior art is independent Driven by Hydraulic Cylinder.Be three-roller centring device, form by a hydraulic cylinder, three swing-bar mechanisms, three guide rollers, two cover linkages and frames.It is on the same circumference in center that three guide rollers are distributed in the roll line; Be contained in respectively on the equal swing arm of three radiuses; The other end is as the swing fulcrum; Fork above the Driven by Hydraulic Cylinder drives down two also swings synchronously of fork in addition through linkage, can realize the synchronous on-off of three guide rollers.Three rollers of hydraulic cylinder action are held push rod simultaneously tightly, are the push rod guiding when hydraulic cylinder is opened.The characteristics of this structure are a hydraulic cylinder control, control advantage easily, thereby are widely used in conventional piercing mill of seamless steel tube group.But the defective of this three-roller centring device: the one, when renewing the top; Push rod will move forward; This moment, three rollers were in the position of not holding push rod tightly; So accurate location has been realized not at a center in push rod center and new center, top, is difficult to satisfy the requirement of top fast replacement system accurate positioning; The 2nd, the supporting when three-roller centring device lacks the push rod forward-reverse, the easy like this push rod that causes is crooked.
Summary of the invention
The invention provides a kind of piercing mandrel plug centring means solved location that existing punch centring means exists inaccurate with the problem that causes the push rod bending easily.
The present invention overcomes the above problems through following scheme:
A kind of piercing mandrel plug centring means comprises the two sections bases in backstage, the centring means underframe that on the two sections bases in backstage, fixedly installs; On at the bottom of the frame of centring means underframe, be set with two elevating screw devices respectively; Two elevating screw devices link together through leading screw and handwheel, and the output shaft that makes progress of two elevating screw devices is fixed together with the backing roll bearing after passing the end face of centring means underframe, between the end face of centring means underframe and backing roll bearing, are provided with the up-down guide post; The punching machine post rod direction is arranged with two backing rolls in parallel in backing roll bearing upper edge; The two sections bases in backstage are provided with the column mount pad, and the column mount pad is provided with column, and column is provided with mounting platform; On mounting platform, be respectively arranged with fork bearing and hydraulic cylinder; The fork bearing is hinged through the middle part of hinge and fork, and the output shaft of hydraulic cylinder and the afterbody of fork link together, and is provided with hold-down roller at the head of fork.
Be provided with compensating cylinder at the bottom of the frame of described centring means underframe, the output shaft of compensating cylinder is fixed together with the backing roll bearing after passing the end face of centring means underframe.
The present invention proposes the top centring means of new structure, realized top centering accurately, satisfied the requirement of push rod supporting guiding, prevent the bending of push rod, improved product quality; And simple to operate, control is convenient.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Specific embodiment
A kind of piercing mandrel plug centring means; Comprise the two sections bases 16 in backstage; The centring means underframe 7 that on the two sections bases 16 in backstage, fixedly installs; On at the bottom of the frame of centring means underframe 7, be set with two elevating screw devices 10 respectively; Two elevating screw devices 10 link together through leading screw and handwheel 8, and the output shaft that makes progress of two elevating screw devices 10 is fixed together with backing roll bearing 13 after passing the end face of centring means underframe 7, can realize the up-down of backing roll bearing 13 through adjusting handle 8.Between the end face of centring means underframe 7 and backing roll bearing 13, be provided with up-down guide post 11, the up-down of backing roll bearing 13 is accomplished under the guiding of up-down guide post 11.Be arranged with two backing rolls 1 in parallel in backing roll bearing 13 upper edge punching machine post rod directions; The two sections bases 16 in backstage are provided with column mount pad 9, and column mount pad 9 is provided with column 7, and column 7 is provided with mounting platform 6; On mounting platform 6, be respectively arranged with fork bearing 3 and hydraulic cylinder 5; Fork bearing 3 is hinged through the middle part of a hinge and fork 4, and the afterbody of the output shaft of hydraulic cylinder 5 and fork 4 links together, and is provided with hold-down roller 2 at the head of fork 4.Realize the swing of forks 4 through controlling hydraulic cylinder 5, thereby realization hold-down roller 2 is depressed holding tightly of back and two 1 pair of push rods of backing roll around hinge.Push rod in can realizing from minimum push rod 14 to the scope of maximum push rod 15 respectively through adjusting handle 8 and hydraulic cylinder 5 hold adjusting tightly.
Be provided with compensating cylinder 12 at the bottom of the frame of described centring means underframe 7, the output shaft of compensating cylinder 12 is fixed together with backing roll bearing 13 after passing the end face of centring means underframe 7, thereby plays the stable support to backing roll bearing 13.
Two backing rolls 1 are installed in the below of push rod, and according to the size of push rod diameter, it is fixed to adjust the back in advance, have guaranteed the consistent of push rod center and new center, top like this, can realize quick replacing; And when anti-thrust trolley band push rod is moved push rod is played supporting, prevent the bending of push rod.The position of two backing rolls 1 is to realize through the up-down that handwheel 8 is adjusted two elevating screw devices 10, moves up and down in the fairlead of two up-down guide posts 11 in connecting bearing that be in course of adjustment, and realizes guiding.Come balance by compensating cylinder 12; Hold-down roller 2 is by its action of a hydraulic cylinder of top 5 controls, and when the push rod top of anti-thrust trolley band was rolling in rolling position, it fell, and compresses push rod, prevents that push rod from buckling, and rises in the rolling back that finishes; Return position after the work by two backing rolls 1 supporting push rod by rolling position, wait for the replacing of top.
Claims (2)
1. piercing mandrel plug centring means; Comprise the two sections bases in backstage (16); The centring means underframe (7) that on the two sections bases in backstage (16), fixedly installs; On at the bottom of the frame of centring means underframe (7), be set with two elevating screw devices (10) respectively, two elevating screw devices (10) link together through leading screw and handwheel (8), and the output shaft that makes progress of two elevating screw devices (10) is fixed together with backing roll bearing (13) after passing the end face of centring means underframe (7); Between the end face of centring means underframe (7) and backing roll bearing (13), be provided with up-down guide post (11); It is characterized in that the punching machine post rod direction is arranged with two backing rolls (1) in parallel in backing roll bearing (13) upper edge, the two sections bases in backstage (16) are provided with column mount pad (9); Column mount pad (9) is provided with column (7); Column (7) is provided with mounting platform (6), on mounting platform (6), is respectively arranged with fork bearing (3) and hydraulic cylinder (5), and fork bearing (3) is hinged through the middle part of a hinge and fork (4); The afterbody of the output shaft of hydraulic cylinder (5) and fork (4) links together, and is provided with hold-down roller (2) at the head of fork (4).
2. a kind of piercing mandrel plug centring means according to claim 1; It is characterized in that; Be provided with compensating cylinder (12) at the bottom of the frame of described centring means underframe (7), the output shaft of compensating cylinder (12) is fixed together with backing roll bearing (13) after passing the end face of centring means underframe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209720A CN102327897A (en) | 2011-07-26 | 2011-07-26 | Tappet centering device for perforating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209720A CN102327897A (en) | 2011-07-26 | 2011-07-26 | Tappet centering device for perforating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102327897A true CN102327897A (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110209720A Pending CN102327897A (en) | 2011-07-26 | 2011-07-26 | Tappet centering device for perforating machine |
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| Country | Link |
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| CN (1) | CN102327897A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814333A (en) * | 2012-08-31 | 2012-12-12 | 太原重工股份有限公司 | Machine frame of three-roller pipe milling machine opened in overturning mode |
| CN103008350A (en) * | 2012-12-28 | 2013-04-03 | 太原通泽重工有限公司 | Turnable puncher top centering roll device |
| CN103506396A (en) * | 2013-09-09 | 2014-01-15 | 芜湖汉光立体停车设备有限公司 | Compression roller lifting device with air cylinder return mechanism |
| CN105414269A (en) * | 2015-12-07 | 2016-03-23 | 苏州工业园区职业技术学院 | Shell winding machine |
| CN105642680A (en) * | 2016-03-02 | 2016-06-08 | 西北工业大学 | Method for preventing top rod of cross-rolling piercer from being bent |
| CN116713329A (en) * | 2023-06-02 | 2023-09-08 | 山东永安昊宇制管有限公司 | Split type core roller frame of hot rolling puncher |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3927547A (en) * | 1973-09-12 | 1975-12-23 | Mannesmann Roehren Werke Ag | Mandrel exchange for diagonal rolling mill |
| CN1052062A (en) * | 1990-07-19 | 1991-06-12 | 鞍山钢铁公司 | The dynamic horizontal hot-rolled pipe punch of two rollers stably |
| EP1046435A1 (en) * | 1997-10-13 | 2000-10-25 | Sumitomo Metal Industries Limited | Piercing mill and method of changing cannon |
| CN200977525Y (en) * | 2006-11-17 | 2007-11-21 | 烟台鲁宝钢管有限责任公司 | Pipe expanding and perforating roof bar front extending quantity regulating device |
| CN202356404U (en) * | 2011-11-01 | 2012-08-01 | 太原通泽重工有限公司 | Ejection head centring device for perforating machine |
-
2011
- 2011-07-26 CN CN201110209720A patent/CN102327897A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3927547A (en) * | 1973-09-12 | 1975-12-23 | Mannesmann Roehren Werke Ag | Mandrel exchange for diagonal rolling mill |
| CN1052062A (en) * | 1990-07-19 | 1991-06-12 | 鞍山钢铁公司 | The dynamic horizontal hot-rolled pipe punch of two rollers stably |
| EP1046435A1 (en) * | 1997-10-13 | 2000-10-25 | Sumitomo Metal Industries Limited | Piercing mill and method of changing cannon |
| CN200977525Y (en) * | 2006-11-17 | 2007-11-21 | 烟台鲁宝钢管有限责任公司 | Pipe expanding and perforating roof bar front extending quantity regulating device |
| CN202356404U (en) * | 2011-11-01 | 2012-08-01 | 太原通泽重工有限公司 | Ejection head centring device for perforating machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814333A (en) * | 2012-08-31 | 2012-12-12 | 太原重工股份有限公司 | Machine frame of three-roller pipe milling machine opened in overturning mode |
| CN103008350A (en) * | 2012-12-28 | 2013-04-03 | 太原通泽重工有限公司 | Turnable puncher top centering roll device |
| CN103506396A (en) * | 2013-09-09 | 2014-01-15 | 芜湖汉光立体停车设备有限公司 | Compression roller lifting device with air cylinder return mechanism |
| CN105414269A (en) * | 2015-12-07 | 2016-03-23 | 苏州工业园区职业技术学院 | Shell winding machine |
| CN105642680A (en) * | 2016-03-02 | 2016-06-08 | 西北工业大学 | Method for preventing top rod of cross-rolling piercer from being bent |
| CN105642680B (en) * | 2016-03-02 | 2018-03-30 | 西北工业大学 | Prevent Mannesmann piercing mill push rod bending method |
| CN116713329A (en) * | 2023-06-02 | 2023-09-08 | 山东永安昊宇制管有限公司 | Split type core roller frame of hot rolling puncher |
| CN116713329B (en) * | 2023-06-02 | 2024-01-19 | 山东永安昊宇制管有限公司 | Split type core roller frame of hot rolling puncher |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |