CN203917556U - A kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting - Google Patents

A kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting Download PDF

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Publication number
CN203917556U
CN203917556U CN201420362833.8U CN201420362833U CN203917556U CN 203917556 U CN203917556 U CN 203917556U CN 201420362833 U CN201420362833 U CN 201420362833U CN 203917556 U CN203917556 U CN 203917556U
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CN
China
Prior art keywords
slide block
regulator bolts
pipe fitting
sealing slide
extrusion press
Prior art date
Application number
CN201420362833.8U
Other languages
Chinese (zh)
Inventor
方植建
王建隆
王忠海
王向荣
王琛博
汪钦
Original Assignee
温州蓝天管件阀门有限公司
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Application filed by 温州蓝天管件阀门有限公司 filed Critical 温州蓝天管件阀门有限公司
Priority to CN201420362833.8U priority Critical patent/CN203917556U/en
Application granted granted Critical
Publication of CN203917556U publication Critical patent/CN203917556U/en

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Abstract

The utility model relates to hydraulic extrusion press for three-way pipe fitting, a kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting particularly, comprise that one end arranges the release cavity of inlet opening, described release cavity sets gradually sealing slide block, Compress Spring, regulator bolts in feed liquor direction; Fluid hole is set on regulator bolts, and regulator bolts and release cavity are threaded, by regulating regulator bolts to change the release force value of sealing slide block; Release cavity inlet arranges the seal receptacle with sealing slide block fitted seal.The control of realization to pipe internal pressure, has solved along with pipe internal pressure raises, pipe wall thickness reduction, and the material supply in bulging district can not get sufficient supply, and the problem of risk of rupture occurs.

Description

A kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting
Technical field
The utility model relates to the automatic pressure relief device in hydraulic extrusion press for three-way pipe fitting field, particularly a kind of hydraulic extrusion press for three-way pipe fitting.
Background technology
Tee pipe fitting is widely used in the engineering fields such as medical science, water conservancy (water-saving irrigation, water supply and drainage), the energy (oil, natural gas, nuclear industry), building.
In prior art, often adopt hydraulic expanding-forming method to process three-way piece.
The hydraulic expanding-forming of threeway is by a kind of forming technology of the nose balance expansion arm of metal material.Its process is to adopt special hydraulic press, by filling liquid in the pipe with threeway equal diameters, by two horizontal pushing oil cylinder synchronous centering motion extrusion tube blanks of hydraulic press, smaller volume after pipe is squeezed, with pipe smaller volume, pressure raises liquid in pipe, when reaching the needed pressure of tee branch expansion, under the double action of metal material fluid pressure in pushing oil cylinder and pipe, along dies cavity, flow and expansion arm.
Hydraulic expanding-forming method processing three-way piece, refers to tubular blank is applied to axial force and internal hydraulic pressure load makes it that plastic deformation occur simultaneously, and the process of finally pasting contour forming.Forming high pressure in pipe process is relevant with several factors, and the s and the matching relationship between axial force that are wherein applied to inside pipe fitting are the most important.When forming high pressure in pipe process is formed to sunykatuib analysis, the principle that axial force and internal pressure load is not occur under the prerequisite of forming defects, as far as possible Slow loading internal pressure (internal pressure is larger, and deflection is larger, and wall thickness reduction is faster); Apply as wide as possible axial force (axial force is larger, is more conducive to the material supply in bulging district).If along with the attenuate of wall thickness, the material supply in bulging district can not get sufficient supply, the danger that will make pipe break.
Utility model content
In view of the above problems, proposed the utility model, the utility model provides a kind of automatic pressure relief device of simple in structure, easy to operate hydraulic extrusion press for three-way pipe fitting.
To achieve these goals, the technical solution adopted in the utility model is: a kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting, it is characterized in that: comprise that one end arranges the release cavity of inlet opening, described release cavity sets gradually sealing slide block, Compress Spring, regulator bolts in feed liquor direction; Fluid hole is set on regulator bolts, and regulator bolts and release cavity are threaded, by regulating regulator bolts to change the release force value of sealing slide block; Release cavity inlet arranges the seal receptacle with sealing slide block fitted seal.
Described sealing slide block and pressure-releasing cavity body space coordinate, and on sealing slide block, some axially extending bores that are communicated with inlet opening and fluid hole are set, and described axially extending bore and inlet opening shift to install.
Described fluid hole is the axially extending bore being arranged on regulator bolts.
The scale that shows regulator bolts displacement is set on described release cavity.
Described regulator bolts and Compress Spring arrange spring base on conflicting and holding.
Generally, pipe has the needed internal pressure value of an arm expansion scope, applies accordingly suitable axial force, just can avoid pipe along with the attenuate of wall thickness, and the material supply in bulging district can not get sufficient supply, the danger of breaking.So add man-hour, by pushing oil cylinder, keep the stable of axial force output, in extrusion tube blank process, pipe internal pressure can increase thereupon gradually, when exceeding the needed internal pressure value of pipe arm expansion scope, can cause pipe to break, so just need to control pipe internal pressure, control pipe internal pressure in a best scope.
The utility model is controlled pipe internal pressure by an automatic pressure relief device is set.
The utility model automatic pressure relief device operation principle is: in pressure relief device, sealing slide block be subject to liquid effects in pipe in it internal pressure and spring action in its elastic force, when internal pressure is greater than elastic force, liquid-driving sealing slide block, flows in release cavity, and flow out from fluid hole, internal pressure diminishes gradually, and when internal pressure is less than elastic force, sealing slide block is subject to elastic force effect, with seal receptacle fitted seal, complete stress-relief process.As long as liquid is greater than spring force to its internal pressure in the pipe that is subject to of sealing slide block, will promotes to seal slide block and automatically complete stress-relief process like this, guarantee that pipe internal pressure is in a best scope.
The utility model beneficial effect is: the utility model provides a kind of automatic pressure relief device of simple in structure, easy to operate hydraulic extrusion press for three-way pipe fitting, solved along with pipe internal pressure raises, pipe wall thickness reduction, the material supply in bulging district can not get sufficient supply, and the problem of risk of rupture occurs.
Accompanying drawing explanation
Fig. 1 is the utility model cross-sectional view.
Number in the figure implication: 1-release cavity; 11-inlet opening; 12-seal receptacle; 2-seals slide block; 21-axially extending bore; 3-Compress Spring; 4-regulator bolts; 41-fluid hole; 42-spring base; 5-scale.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
The automatic pressure relief device of the present embodiment a kind of hydraulic extrusion press for three-way pipe fitting as shown in Figure 1, comprises that one end arranges the release cavity 1 of inlet opening 11, and described release cavity 1 sets gradually sealing slide block 2, Compress Spring 3, regulator bolts 4 in feed liquor direction; Fluid hole 41 is set on regulator bolts 4, and regulator bolts 4 and release cavity 1 are threaded, by regulating regulator bolts 4 to change the release force value of sealing slide block 2; Release cavity 1 inlet 11 arranges the seal receptacle 12 with sealing slide block 2 fitted seal.Sealing slide block 2 and release cavity 1 matched in clearance, arrange some axially extending bores 21 that are communicated with inlet opening 11 and fluid hole 41 on sealing slide block 2, and described axially extending bore 21 shifts to install with inlet opening 11.Fluid hole 41 is for being arranged on the axially extending bore on regulator bolts 4.
Carry out tee pipe fitting processing, pipe internal pressure is excessive, when the suffered internal pressure of sealing slide block 2 is greater than suffered elastic force, internal pressure acts on sealing slide block 2, liquid jack-up sealing slide block 2, open inlet opening 11, liquid is by the gap between sealing slide block 2 and release cavity 1 and be arranged at the axially extending bore 21 on sealing slide block 2, flow into release cavity 1, through fluid hole 41, flow out, along with the outflow of liquid in pipe, pipe internal pressure declines, spring 3 effects by compression of sealing slide block 2, with seal receptacle 13 fitted seal, complete release.
Generally, the pipe of unlike material performance, has the own intrinsic required internal pressure value of an arm expansion scope.For the processing for different tubing, the utility model arranges scale 5 on release cavity 1, realizes the setting to the required internal pressure value of different tubing arm expansion accurately.
Specifically, the decrement of Compress Spring 3 regulates by regulator bolts 4, by scale 5, read the each displacement regulating of regulator bolts 4, just can know the decrement change value of Compress Spring 3, according to Hooke's law, calculate the elastic force of spring, set the required internal pressure value of arm expansion, realize and regulate pipe internal pressure.
Regulator bolts 4 and Compress Spring 3 are conflicted to hold spring base 42 are set, and are convenient to Compress Spring 3 and are connected with regulator bolts 4.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and modification, these of above-mentioned hypothesis improve and modification also should be considered as protection domain of the present utility model.

Claims (5)

1. an automatic pressure relief device for hydraulic extrusion press for three-way pipe fitting, is characterized in that: comprise that one end arranges the release cavity of inlet opening, described release cavity sets gradually sealing slide block, Compress Spring, regulator bolts in feed liquor direction; Fluid hole is set on regulator bolts, and regulator bolts and release cavity are threaded, by regulating regulator bolts to change the release force value of sealing slide block; Release cavity inlet arranges the seal receptacle with sealing slide block fitted seal.
2. the automatic pressure relief device of a kind of hydraulic extrusion press for three-way pipe fitting according to claim 1, it is characterized in that: described sealing slide block and pressure-releasing cavity body space coordinate, on sealing slide block, some axially extending bores that are communicated with inlet opening and fluid hole are set, described axially extending bore and inlet opening shift to install.
3. the automatic pressure relief device of a kind of hydraulic extrusion press for three-way pipe fitting according to claim 1 and 2, is characterized in that: described fluid hole is the axially extending bore being arranged on regulator bolts.
4. the automatic pressure relief device of a kind of hydraulic extrusion press for three-way pipe fitting according to claim 1 and 2, is characterized in that: the scale that shows regulator bolts displacement is set on described release cavity.
5. the automatic pressure relief device of a kind of hydraulic extrusion press for three-way pipe fitting according to claim 1 and 2, is characterized in that: described regulator bolts and Compress Spring arrange spring base on conflicting and holding.
CN201420362833.8U 2014-06-25 2014-06-25 A kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting CN203917556U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420362833.8U CN203917556U (en) 2014-06-25 2014-06-25 A kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420362833.8U CN203917556U (en) 2014-06-25 2014-06-25 A kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting

Publications (1)

Publication Number Publication Date
CN203917556U true CN203917556U (en) 2014-11-05

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CN201420362833.8U CN203917556U (en) 2014-06-25 2014-06-25 A kind of automatic pressure relief device of hydraulic extrusion press for three-way pipe fitting

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104084470A (en) * 2014-06-25 2014-10-08 温州蓝天管件阀门有限公司 Automatic pressure relief device of tee pipe hydraulic extrusion press
CN105234249A (en) * 2015-06-19 2016-01-13 新昌县航达机械制造有限公司 Hydraulic control tee joint rigid-plastic compounded multi-cylinder buckling bulging equipment
CN105234244A (en) * 2015-06-19 2016-01-13 新昌县航达机械制造有限公司 Hydraulic control tee joint rigid-plastic compounded bulging equipment
CN105234243A (en) * 2015-06-19 2016-01-13 新昌县航达机械制造有限公司 Lock latch type rigid and plastic compound bulging device for t-branch pipe
CN105268814A (en) * 2015-06-19 2016-01-27 新昌县航达机械制造有限公司 Tee-joint pipe rigid and plastic composite bulging device
CN105290193A (en) * 2015-06-19 2016-02-03 新昌县航达机械制造有限公司 Rigid-plastic compound multi-cylinder latch-type bulging device for three-way pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104084470A (en) * 2014-06-25 2014-10-08 温州蓝天管件阀门有限公司 Automatic pressure relief device of tee pipe hydraulic extrusion press
CN105234249A (en) * 2015-06-19 2016-01-13 新昌县航达机械制造有限公司 Hydraulic control tee joint rigid-plastic compounded multi-cylinder buckling bulging equipment
CN105234244A (en) * 2015-06-19 2016-01-13 新昌县航达机械制造有限公司 Hydraulic control tee joint rigid-plastic compounded bulging equipment
CN105234243A (en) * 2015-06-19 2016-01-13 新昌县航达机械制造有限公司 Lock latch type rigid and plastic compound bulging device for t-branch pipe
CN105268814A (en) * 2015-06-19 2016-01-27 新昌县航达机械制造有限公司 Tee-joint pipe rigid and plastic composite bulging device
CN105290193A (en) * 2015-06-19 2016-02-03 新昌县航达机械制造有限公司 Rigid-plastic compound multi-cylinder latch-type bulging device for three-way pipe

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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: 20141105

Termination date: 20170625