CN111482461B - Automatic cooling water-cooling top along separate routes - Google Patents

Automatic cooling water-cooling top along separate routes Download PDF

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Publication number
CN111482461B
CN111482461B CN202010334271.6A CN202010334271A CN111482461B CN 111482461 B CN111482461 B CN 111482461B CN 202010334271 A CN202010334271 A CN 202010334271A CN 111482461 B CN111482461 B CN 111482461B
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China
Prior art keywords
connector
plug
cooling
plug shell
shell
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CN202010334271.6A
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CN111482461A (en
Inventor
李明
马杭洲
张振
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Anhui Jinlan Die Casting Co ltd
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Yanshan University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B25/00Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/04Cooling or lubricating mandrels during operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B19/00Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention relates to an automatic shunting-cooling water-cooling plug which comprises a plug shell, a connector and an inverted cone, wherein the connector is arranged in a cavity of the plug shell, the lower part of the connector is rotatably connected with a corresponding position of the lower part of the plug shell through a connecting component, the inverted cone is arranged at the top of the inner side of the plug shell, the core part of the connector is hollow, the bottom of the connector is connected with a water inlet pipe, water outlet holes uniformly distributed around an axis are formed in the inner side of the joint of the connector and the plug shell, shrinkage cooling holes uniformly distributed around the axis are formed in the outer side of the joint of the plug shell and the connector, the inlet end of each shrinkage cooling hole is communicated with the connecting component, and an adsorption type friction plate which is contacted with the bottom of the plug shell is arranged. The invention can avoid the condition of steam bubble aggregation in the inner cavity of the plug shell, can effectively solve the problem that the plug shell is easy to be clamped when retracting, and the like, realizes automatic branch cooling, and has simple structure and higher equipment modification economy.

Description

Automatic cooling water-cooling top along separate routes
Technical Field
The invention relates to the technical field of water-cooling jacks, in particular to a water-cooling jack capable of automatically cooling along a branch.
Background
The plate, the pipe, the section bar and the like are important components in the field of ferrous metallurgy, at the present stage, in the field of steel pipe production, a top head is an important production tool for producing seamless steel pipes, the rear part of the top head is generally connected with a push rod, and the top head and the push rod are matched to drill a required cavity in a pipe blank heated to a high temperature, so that the seamless steel pipes are produced. The damage rate is higher in the production of the top commonly used at present, and the outside surface temperature of the top that usually leads to in time cooling during the work drilling exceeds the highest operating temperature for a long time to with the adhesion of seamless pipe inner wall or the deformation of top outside surface leads to, it is also comparatively common that the top is blocked in the pipe can't withdraw from after the work is accomplished. The condition that can't effectively give the top cooling even increase cooling water pressure of intaking also often appears in actual production, this is because cooling water gets into the top when inside, directly faces the comparatively narrow region in top, and this region also is the temperature highest place, can make cooling water generate a gaseous region at the top usually, can't realize the cooling purpose. Meanwhile, the cooling water flows in the existing plug and is turbulent, and the gaseous bubbles cannot be flushed out of the plug in time. The problem that the ejector is easy to be clamped after the operation is finished is still not effectively solved, and great economic loss is brought to the production of enterprises.
Chinese patent 105499273B provides a solution to eliminate the gaseous temperature-reducing air bubbles by arranging a nozzle and a rectifying block at the front end of the cavity of the plug, but the existence of the rectifying block seriously reduces the temperature-reducing effect of the plug; chinese patent 110355208A discloses a perforation ejector rod top head cooling and nitrogen blowing oxidation resisting device in a capillary, which does not relate to solving the problems of steam bubble aggregation and blockage prevention when the top head exits; chinese patent 208373825U discloses a combined water-cooled molybdenum-based plug of heat-piercing titanium alloy which is difficult to deform, the device improves the exchange area with cooling water through a heat sink, but only relatively improves the cooling efficiency, and the problem that the plug is easy to be blocked when exiting cannot be solved; therefore, the problems that steam bubbles are gathered at the front end of a cavity of the plug when the plug works, the plug is withdrawn from a pipe blank and is easily blocked and the like cannot be effectively solved in the prior art; therefore, the current prior art has a great lifting and perfecting space.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an automatic branch cooling water-cooled plug that can prevent steam bubbles from accumulating at the front end of a plug cavity, reducing the flow rate of cooling water, and easily getting stuck when the plug is retracted during operation.
The technical scheme adopted by the invention is as follows:
the invention provides an automatic shunt cooling water-cooling plug which comprises a plug shell, a connector and an inverted cone, wherein the connector is arranged in a cavity of the plug shell, the lower part of the connector is rotatably connected with a corresponding position of the lower part of the plug shell through a connecting assembly, the inverted cone is arranged at the top of the inner side of the plug shell, a core part of the connector is hollow, the bottom of the connector is connected with a water inlet pipe, water outlet holes uniformly distributed around an axis are formed in the inner side of the joint of the connector and the plug shell, shrinkage cooling holes uniformly distributed around the axis are formed in the outer side of the joint of the plug shell and the connector, the inlet end of each shrinkage cooling hole is communicated with the connecting assembly, and an adsorption type friction plate which is in contact with the bottom of the plug shell is arranged on the outer side.
Further, coupling assembling including set up in the regional inboard work groove that corresponds the position department with shrink cooling hole entry end in top shell lower part and set up in work groove below and with the groove that rolls back that work is linked together to and set up the annular bayonet lock that corresponds the position department in the regional outside of connector lower part and work groove, just the outer end joint of annular bayonet lock is in work groove or the inslot that rolls back.
Further, a waterproof solid lubricant is filled between the joint of the plug shell and the lower part of the connector.
Further, the number of the water outlet holes is set to be 8-12, and the number of the contraction cooling holes is set to be 14-18.
Furthermore, the bottom of the water outlet hole is connected with a working water outlet pipe, and the bottom of the shrinkage cooling hole is connected with a rollback water outlet pipe.
Further, the contour curve of the working area of the outer surface of the connector is the same as that of the working area of the inner surface of the plug shell.
Furthermore, one side of the inner wall of the water inlet pipe is provided with a flow sensor, and one side of the upper part of the connector is provided with a temperature sensor.
The invention has the following beneficial effects:
1. the inside cavity top of top shell is provided with the back taper, and the cooling water directly dashes towards the back taper after getting into the top shell, has guaranteed that top shell front end can not have the steam bubble gathering to along with streamlined curve dashes out the top shell, the connector surface is the same with top shell internal surface work area's profile curve, has guaranteed that the cooling water velocity of flow can not reduce, has further guaranteed that the steam bubble can be taken out top shell inner chamber smoothly.
2. Be provided with the work groove on the internal surface of top shell and roll back the groove, during operation annular bayonet lock is located the work groove, and the shrink cooling hole on the unable entering top shell of cooling water, cooling water only flows out by the apopore, and annular bayonet lock is located and rolls back the groove when rolling back, and the automatic reposition of redundant personnel of cooling water gets into the shrink cooling hole, makes the regional cooling shrinkage in lower part of top shell, has solved among the prior art when the top rolls back and is blocked easily problem.
3. The water-cooling plug realizes automatic branch cooling by means of the matching structure of the plug shell, the connector and the annular clamping pin, and has the advantages of simple structure and high equipment transformation economy.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of an automatic shunt-cooling water-cooled plug according to the present invention;
fig. 2 is a schematic cross-sectional view of section a-a in fig. 1.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
It should be noted that in the description of the present invention, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not mean that a device or an element must have a specific orientation, be configured and operated in a specific orientation.
Referring to fig. 1 and 2, a specific structure of an embodiment of an automatic branch cooling water-cooling plug according to the present invention is shown. The plug comprises a plug housing 1, a connector 2 and a connecting assembly 3.
The top of the inner cavity of the plug shell 1 is fixedly connected with an inverted cone 11 corresponding to the core part of the connector 2, the external curve of the plug shell 1 can be divided into a nose part I, a working cone II and a rolling cone III according to functions from top to bottom, and the contour curve of the working area on the outer surface of the connector 2 is the same as that of the working area on the inner surface of the plug shell 1; the connector 2 is rotatably connected to a position corresponding to the rolling cone III part at the lower part of the plug shell 1 through a connecting assembly 3, and a waterproof solid lubricant 12 is filled between the inner side of the rolling cone III part at the lower part of the plug shell 1 and the connecting part at the lower part of the connector 2; the inner side of the joint of the connector 2 and the plug housing 1 is provided with columnar water outlet holes 21, the water outlet holes 21 are uniformly distributed on the inner side of the circumference of the lower part of the connector 2 around the axis, the upper end parts of the water outlet holes 21 are communicated with a cavity between the plug housing 1 and the connector 2, the number of the water outlet holes 21 is generally 8-12, in the embodiment, the number of the water outlet holes 21 is 10, and the bottom of each water outlet hole 21 is connected with a working water outlet pipe 22; the outside of top shell 1 and connector 2 junction is provided with column shrink cooling hole 13, shrink cooling hole 13 is inboard at the circumference of top shell 1 lower part around axis evenly distributed, just the top entry end of shrink cooling hole 13 is located coupling assembling 3, the quantity of shrink cooling hole 13 generally sets up to 14-18, in this embodiment, the quantity of shrink cooling hole 13 is 16, just the bottom of every shrink cooling hole 13 all is connected with back off outlet pipe 14.
The core of connector 2 is cavity, just the bottom of connector 2 is connected with rather than the communicating inlet tube 23 of core, flow sensor 24 is installed to one side of inlet tube 23 inner wall, just temperature sensor 25 is installed to one side on connector 2 upper portion, be provided with absorption formula friction disc 26 between the bottom of connector 2 and top shell 1, the one end fixed connection of absorption formula friction disc 26 is in the outside of connector 2 bottom, and its upper surface contacts with the bottom of top shell 1.
Coupling assembling 3 is including seting up at the inboard work groove 31 of top shell 1 rolling awl III part and work awl II part handing-over department and seting up in work groove 31 below and the groove 32 that rolls back that is linked together with work groove 31 to and set up the annular bayonet lock 33 that corresponds the department in 2 lower parts outsides of connector and work groove 31 position, work groove 31 is linked together with shrink cooling hole 13 top entry end, the inboard of annular bayonet lock 33 is connected with connector 2 through seting up the annular clamping groove (not shown in the figure) that corresponds position department on connector 2 with work groove 31, just the circumference outer end of annular bayonet lock 33 can be along with the joint that reciprocates of connector 2 in work groove 31 or the groove 32 that rolls back.
During drilling, the connector 2 pushes the plug shell 1 through the adsorption type friction plate 26, the plug shell 1 and the pipe blank can complete drilling work together, the plug shell 1 can freely and circumferentially rotate along with the pipe blank during drilling, cooling water directly flows into the plug shell 1 through the water inlet pipe 23 and then flows towards the inverted cone 11, the fact that steam bubbles are not gathered at the front end of the plug shell 1 and flows out of the plug shell 1 along with a streamline curve is guaranteed, the curve of the outer surface of the connector 2 and the curve of the inner surface of the plug shell 1, which are located on the corresponding portion of the working cone II, are the same, the fact that the flow speed of the cooling water cannot be reduced is guaranteed, cooling efficiency is guaranteed to be improved, the annular clamping pin 33 is located in the working groove 31 during drilling, the cooling water cannot enter the shrinkage cooling hole 13 in the plug shell; the flow sensor 24 is installed on the water inlet pipe 23 for detecting the water inflow, and the temperature sensor 25 is installed on the upper portion of the connector 2 for detecting the temperature of the cooling water in the cavity of the plug housing 1.
When finishing work and beginning to roll back, annular bayonet lock 33 gets into and rolls back groove 32, and cooling water is divided automatically and is got into shrink cooling hole 13, makes top shell 1 roll awl III part cooling shrinkage, has effectively avoided the appearance of being blocked scheduling problem when top shell 1 rolls back, and annular bayonet lock 33 is connected top shell 1 and connector 2, thereby connector 2 rolls back and drives top shell 1 and rolls back, accomplishes drilling operation.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims (6)

1. The utility model provides an automatic cooling water-cooling top along separate routes which characterized in that: the plug comprises a plug shell, a connector and an inverted cone, wherein the connector is arranged in a cavity of the plug shell, the lower part of the connector is rotatably connected with the corresponding position of the lower part of the plug shell through a connecting assembly, the inverted cone is arranged at the top of the inner side of the plug shell, a core part of the connector is hollow, the bottom of the core part of the connector is connected with a water inlet pipe, water outlet holes which are uniformly distributed around an axis are formed in the inner side of the joint of the connector and the plug shell, shrinkage cooling holes which are uniformly distributed around the axis are formed in the outer side of the joint of the plug shell and the connector, the inlet ends of the shrinkage cooling holes are communicated with the connecting assembly, and an adsorption type friction plate which is in contact;
coupling assembling is including setting up the work groove that corresponds position department with shrink cooling hole entry end in the regional inboard in top shell lower part, and set up in work groove below and with work groove linked together roll back the groove to and set up the annular bayonet lock that corresponds position department in the regional outside of connector lower part and work groove, just the outer end joint of annular bayonet lock is in work groove or roll back the inslot.
2. The automatic shunt cooling water-cooled plug as claimed in claim 1, wherein: and a waterproof solid lubricant is filled between the joint of the plug shell and the lower part of the connector.
3. The automatic shunt cooling water-cooled plug as claimed in claim 1, wherein: the number of the water outlet holes is set to be 8-12, and the number of the contraction cooling holes is set to be 14-18.
4. An automatic shunt cooling water-cooled plug as claimed in claim 1 or 3, wherein: the bottom of the water outlet hole is connected with a working water outlet pipe, and the bottom of the shrinkage cooling hole is connected with a backspacing water outlet pipe.
5. The automatic shunt cooling water-cooled plug as claimed in claim 1, wherein: the contour curve of the outer surface working area of the connector is the same as that of the inner surface working area of the plug shell.
6. The automatic shunt cooling water-cooled plug as claimed in claim 1, wherein: and a flow sensor is arranged on one side of the inner wall of the water inlet pipe, and a temperature sensor is arranged on one side of the upper part of the connector.
CN202010334271.6A 2020-04-24 2020-04-24 Automatic cooling water-cooling top along separate routes Active CN111482461B (en)

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CN202010334271.6A CN111482461B (en) 2020-04-24 2020-04-24 Automatic cooling water-cooling top along separate routes

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CN111482461B true CN111482461B (en) 2021-07-16

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168405A (en) * 1982-03-31 1983-10-04 Sumitomo Metal Ind Ltd Rolling method of pipe in second piercer
JPS606208A (en) * 1983-06-25 1985-01-12 Sumitomo Metal Ind Ltd Rolling method of seamless steel pipe
JPH0399708A (en) * 1989-09-12 1991-04-24 Nkk Corp Method and device for manufacturing seamless steel pipe
CN2255884Y (en) * 1996-07-10 1997-06-11 成都无缝钢管厂 Piercing mill head with internal rib guiding water cooling system
DE19636321C1 (en) * 1996-08-29 1997-11-20 Mannesmann Ag Method for prolonging working life of internally cooled piercers
CN101198420A (en) * 2005-06-14 2008-06-11 住友金属工业株式会社 Boring machine, plug, and method of manufacturing seamless steel tube
JP2008272803A (en) * 2007-05-01 2008-11-13 Sanyo Special Steel Co Ltd Method for cooling piercing plug for seamless steel tube, and unit therefor
CN103506385A (en) * 2013-10-25 2014-01-15 江苏南山冶金机械制造有限公司 Ejector header
CN105499273A (en) * 2015-12-15 2016-04-20 安徽工业大学 Perforation top of seamless steel pipe
CN110153190A (en) * 2019-06-13 2019-08-23 南通市嘉业机械制造有限公司 A kind of high stable piercing plug for seamless steel tubes

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168405A (en) * 1982-03-31 1983-10-04 Sumitomo Metal Ind Ltd Rolling method of pipe in second piercer
JPS606208A (en) * 1983-06-25 1985-01-12 Sumitomo Metal Ind Ltd Rolling method of seamless steel pipe
JPH0399708A (en) * 1989-09-12 1991-04-24 Nkk Corp Method and device for manufacturing seamless steel pipe
CN2255884Y (en) * 1996-07-10 1997-06-11 成都无缝钢管厂 Piercing mill head with internal rib guiding water cooling system
DE19636321C1 (en) * 1996-08-29 1997-11-20 Mannesmann Ag Method for prolonging working life of internally cooled piercers
CN101198420A (en) * 2005-06-14 2008-06-11 住友金属工业株式会社 Boring machine, plug, and method of manufacturing seamless steel tube
JP2008272803A (en) * 2007-05-01 2008-11-13 Sanyo Special Steel Co Ltd Method for cooling piercing plug for seamless steel tube, and unit therefor
CN103506385A (en) * 2013-10-25 2014-01-15 江苏南山冶金机械制造有限公司 Ejector header
CN105499273A (en) * 2015-12-15 2016-04-20 安徽工业大学 Perforation top of seamless steel pipe
CN110153190A (en) * 2019-06-13 2019-08-23 南通市嘉业机械制造有限公司 A kind of high stable piercing plug for seamless steel tubes

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Effective date of registration: 20220907

Address after: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui.

Patentee after: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd.

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Effective date of registration: 20221213

Address after: 246000 Guanyin Road, Taihu Economic Development Zone, Anqing City, Anhui Province

Patentee after: ANHUI JINLAN DIE CASTING CO.,LTD.

Address before: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui.

Patentee before: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd.

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Denomination of invention: A water-cooled head with automatic split cooling

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