CN105402266A - Novel cut-off pipe and high-pressure sealing and rapid pressure relief structure - Google Patents
Novel cut-off pipe and high-pressure sealing and rapid pressure relief structure Download PDFInfo
- Publication number
- CN105402266A CN105402266A CN201510850370.9A CN201510850370A CN105402266A CN 105402266 A CN105402266 A CN 105402266A CN 201510850370 A CN201510850370 A CN 201510850370A CN 105402266 A CN105402266 A CN 105402266A
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- China
- Prior art keywords
- sealing
- cut
- cut pipe
- pipe
- cone portion
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D9/00—Couplings with safety member for disconnecting, e.g. breaking or melting member
- F16D9/06—Couplings with safety member for disconnecting, e.g. breaking or melting member by breaking due to shear stress
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a novel cut-off pipe which comprises a cut-off part, a matching part and a sealing part from top to bottom. The cut-off part is divided into an upper handheld portion a and a lower cut-off portion b; the matching part comprises an upper clamping portion c, a middle external thread portion d and a lower round polished portion e; the sealing part comprises an upper sealing piece portion f and a lower sealing cone portion g, and a transition portion h exists between the upper sealing piece portion f and the lower sealing cone portion g; a gasket and a sealing gasket are arranged on the sealing piece portion f, and the angle alpha of the sealing cone portion g is smaller than the angle beta of the bottom of an inner hole D in a part matched with the sealing cone portion g, namely the angle alpha is smaller than the angle beta of a drill bit used for drilling the inner hole D; a central blind hole j reaches the cut-off portion b of the cut-off part from the bottom by passing through the sealing part and the matching part upwards. The cut-off pipe enables a coupler to normally transmit power and also has an overload protection effect. The invention further discloses a high-pressure sealing and rapid pressure relief structure with the cut-off pipe.
Description
Technical field
The present invention relates to and a kind ofly can realize the part of high pressure sealing and quick pressure releasing and relevant structure thereof.
Background technique
Along with requirement more and more higher to the aspect such as cost efficiency, safety in production in modern Production Activities, the device arranging safety protection class in production link seems and becomes more and more important.Hydraulic safety coupling just belongs to a kind of overload protection arrangement; be mainly used in power transmission link, be arranged between master and slave moving axis, when there is overload conditions; in very short time, make the connection of master and slave moving axis produce depart from, reach the object of protection manufacturing mechanism.Hydraulic safety coupling will possess above-mentioned function, and part cut pipe wherein is then responsible for important effect: both required in normal conditions, keeps the high pressure of the inner oil pocket of coupling, prevents from revealing, makes coupling normal delivery power; Also require when there is overload conditions, the pressure of the inner oil pocket of fast discharging coupling, makes the two ends of coupling unclamp disengaging, plays the effect of overload protection.Because the endoporus requirement on machining accuracy of the coupling band matched with cut pipe is high, and course of working cannot observe, detect, its precision relies on process equipment to ensure completely, therefore easily cause cut pipe and endoporus sealability bad, cannot meet the needs of production.
Summary of the invention
Problem to be solved by this invention is to provide a kind of novel cut pipe, and it can meet the high pressure of the inner oil pocket of nominal situation lower seal coupling, makes coupling normal delivery power; Also can meet when there is overload conditions, the pressure of the inner oil pocket of fast discharging coupling, plays the effect of overload protection.The invention also discloses and there is the high pressure sealing of this cut pipe and the structure of quick pressure releasing.
A kind of novel cut pipe of the present invention, it comprises shearing position from top to bottom, matching part, sealing position; Shear position and be divided into the holding part a on top, the cut part b of bottom; Matching part comprises clamping part c, the external thread part d at middle part, the light circle portion e of bottom on top; Sealing position comprises the Sealing portion f on top, the sealing cone portion g of bottom, there is a transition part h between the two; Sealing portion f is provided with packing ring and seal washer, and the angle of sealing cone portion g is the angle beta bottom α, α are less than on the part that matches with it endoporus D, is namely less than the angle beta of the drill bit used when boring endoporus D; Central blind hole j up arrives through sealing position, matching part the cut part b shearing position from bottom.
The advantage of cut pipe of the present invention is: the sealing cone portion g 1, being designed with certain angle alpha, is less than the angle beta bottom the endoporus D on the part that matches with it, is namely less than the angle beta of the drill bit used when boring endoporus D.Like this, after cut pipe loads, the roundlet of its sealing cone portion g extrudes with the taper-face contact bottom the inner bore of part D that matches, and plays the effect of seal oil chamber; Meanwhile, decrease the lifting surface area of oil pressure on cut pipe, thus reduce the stressed of cut pipe screw thread; 2, while sealing cone portion g plays primary seal, the packing ring that Sealing portion f is arranged and seal washer play the effect of auxiliary seal.
Therefore the favorable sealing property of cut pipe of the present invention and endoporus, in normal conditions, can keep the high pressure of the inner oil pocket of coupling, prevent from revealing, make coupling normal delivery power; When there is overload conditions, the pressure of the inner oil pocket of fast discharging coupling, makes the two ends of coupling unclamp disengaging, plays the effect of overload protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the novel cut pipe of the present invention;
Fig. 2 is the enlarged diagram at A place in Fig. 1;
Fig. 3 is the schematic diagram of the structure of high pressure sealing of the present invention and quick pressure releasing;
Fig. 4 is the enlarged diagram at B place in Fig. 3.
Embodiment
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of novel cut pipe of the present invention, it comprises shearing position from top to bottom, matching part, sealing position; Shear position and be divided into the holding part a on top, the cut part b of bottom; Matching part comprises clamping part c, the external thread part d at middle part, the light circle portion e of bottom on top; Sealing position comprises the Sealing portion f on top, the sealing cone portion g of bottom, there is a transition part h between the two; Sealing portion f is provided with packing ring 1 and seal washer 2, the angle of sealing cone portion g is the angle beta bottom α, α are less than on the part that matches with it endoporus D, is namely less than the angle beta of the drill bit used when boring endoporus D; Central blind hole j up arrives through sealing position, matching part the cut part b shearing position from bottom.Sealing cone portion g is conducive to the accurate processing of endoporus D on the part that matches and angle beta, improves the stability of sealing.
As a modification of the present invention mode, the size of holding part a is greater than the size of cut part b.Clamping part c is outer-hexagonal side, and external thread part d is the outside thread of metric fine.
As a modification of the present invention mode, transition part h and sealing cone portion g has a conical surface transition portion i, and the angle of its conical surface is α slightly larger than the angle of sealing cone portion g.Like this, the difficulty of processing of cut pipe sealing cone portion g can be reduced.
As a modification of the present invention mode, the length of center hole j in the b of cut part is 3/4 of cut part b length k.Like this, when the load, conveniently at cut part b, cut pipe can be cut off, allow high pressure oil spray.
From Fig. 3, Fig. 4, the structure of a kind of high pressure sealing of the present invention and quick pressure releasing, it comprises shearing ring 4, coupling band 6, above-mentioned cut pipe 5, and cut pipe 5 matches with the endoporus of coupling band 6, and shearing ring 4 cover has on the cut part b of cut pipe 5.
The advantage of cut pipe of the present invention is: the sealing cone portion g 1, being designed with certain angle alpha, is less than the angle beta bottom the endoporus D on the part that matches with it, is namely less than the angle beta of the drill bit used when boring endoporus D.Like this, after cut pipe loads, the roundlet in sealing cone portion is extruded with the taper-face contact bottom the inner bore of part D that matches, plays the effect of seal oil chamber; Meanwhile, after being conducive to cut pipe seal oil chamber, reduce the lifting surface area of oil pressure on cut pipe, thus reduce the stressed of cut pipe screw thread; 2, while sealing cone portion g plays primary seal, the packing ring that Sealing portion f is arranged and seal washer play the effect of auxiliary seal.
When using the structure of high pressure sealing of the present invention and quick pressure releasing when hydraulic safety coupling, when high pressure oil pump to the inner oil pocket 7 of coupling inject high pressure oil and persistent pressure time, cut pipe 5 is screwed into corresponding aperture, but do not tighten, at this moment, the Sealing packing ring 1 on cut pipe 5 and O RunddichtringO 2 seal; When reaching use pressure, tighten cut pipe 5, the taper-face contact of the endoporus D on the sealing cone portion g of cut pipe 5 and coupling band 6 is extruded, plays seal oil chamber, and Sealing packing ring 1 and O RunddichtringO 2 play auxiliary seal, at this moment coupling internal high pressure oil is isolated from the outside; The endoporus thin-walled place at joint sleeve 6 cavity 7 place is by the inside dilatating and deformable of high pressure oil effect, and embrace the periphery of coupling shaft 3 equably, the contact friction force of both dependence realizes the effect of coupling transferring power.When there is the situation of transshipping in the process of coupling work, namely the enclasping force between joint sleeve 6 and coupling shaft 3 is not enough to transferring power, there is mutually right relatively rotating in the two, at this moment, the shearing ring 4 be synchronized with the movement with coupling shaft 3 just and cut pipe 5 also there occurs and relatively rotate, the opening slot of shearing ring 4 just produces radial cutting force to the cylindrical of the cut part b of cut pipe 5, cut pipe 5 is disconnected from its cylindrical, make the high pressure oil of the inner oil pocket 7 of coupling by the central blind hole j ejection at a high speed of cut pipe 5, unloading oil pocket pressure in very short time, the endoporus of joint sleeve 6 is restored to the original state, joint sleeve 6 gets loose with coupling shaft 3 and is separated, play the effect of overload protection.
Cut pipe of the present invention is not limited only on coupling, can extensive use on safety unload device in various needs.
Claims (6)
1. a novel cut pipe, is characterized in that: it comprises shearing position from top to bottom, matching part, sealing position; Shear position and be divided into the holding part a on top, the cut part b of bottom; Matching part comprises clamping part c, the external thread part d at middle part, the light circle portion e of bottom on top; Sealing position comprises the Sealing portion f on top, the sealing cone portion g of bottom, there is a transition part h between the two; Sealing portion f is provided with Sealing packing ring (1) and O RunddichtringO (2), the angle of sealing cone portion g is the angle beta bottom α, α are less than on the part that matches with it endoporus D, is namely less than the angle beta of the drill bit used when boring endoporus D; Central blind hole j up arrives through sealing position, matching part the cut part b shearing position from bottom.
2. cut pipe according to claim 1, is characterized in that: the size of holding part a is greater than the size of cut part b.
3. cut pipe according to claim 1, is characterized in that: clamping part c is outer-hexagonal side, and external thread part d is the outside thread of metric fine.
4. cut pipe according to claim 1, is characterized in that: have a conical surface transition portion i between transition part h and sealing cone portion g, and the angle of its conical surface is α slightly larger than the angle of sealing cone portion g.
5. cut pipe according to claim 1, is characterized in that: the length of center hole j in the b of cut part is 3/4 of cut part b length k.
6. the structure of a high pressure sealing and quick pressure releasing, it is characterized in that: it comprises shearing ring (4), coupling band (6), cut pipe (5) described in claim 1-5, cut pipe (5) matches with the endoporus of coupling band (6), and shearing ring (4) cover has on the cut part b of cut pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850370.9A CN105402266A (en) | 2015-11-30 | 2015-11-30 | Novel cut-off pipe and high-pressure sealing and rapid pressure relief structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850370.9A CN105402266A (en) | 2015-11-30 | 2015-11-30 | Novel cut-off pipe and high-pressure sealing and rapid pressure relief structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402266A true CN105402266A (en) | 2016-03-16 |
Family
ID=55467954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510850370.9A Pending CN105402266A (en) | 2015-11-30 | 2015-11-30 | Novel cut-off pipe and high-pressure sealing and rapid pressure relief structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804977A (en) * | 2020-05-28 | 2020-10-23 | 中国人民解放军63653部队 | Copper pipe pinch-off sealing device and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192762Y (en) * | 1994-06-06 | 1995-03-22 | 乐清市振华冶金联轴器实业公司 | Hydraulic safety coupling |
| DE4405155A1 (en) * | 1994-02-18 | 1995-08-24 | Renk Tacke Gmbh | Two stage safety clutch for shaft |
| CN101712046A (en) * | 2009-11-24 | 2010-05-26 | 南京钢铁股份有限公司 | Back-up roll shape of medium plate four high stand |
| CN201747923U (en) * | 2010-09-05 | 2011-02-16 | 徐工集团工程机械股份有限公司科技分公司 | Novel ventilation device |
| CN102057174A (en) * | 2008-06-04 | 2011-05-11 | 株式会社捷太格特 | Torque limiter |
| CN203500321U (en) * | 2013-09-27 | 2014-03-26 | 泰尔重工股份有限公司 | Novel hydraulic safety coupler |
| CN103967960A (en) * | 2013-01-28 | 2014-08-06 | 株式会社捷太格特 | Torque limiter |
| CN104343834A (en) * | 2013-08-05 | 2015-02-11 | 株式会社捷太格特 | Shear valve and torque limiter |
| CN205226133U (en) * | 2015-11-30 | 2016-05-11 | 泰尔重工股份有限公司 | Novel cut pipe and structure of pressurization and quick pressure release |
-
2015
- 2015-11-30 CN CN201510850370.9A patent/CN105402266A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4405155A1 (en) * | 1994-02-18 | 1995-08-24 | Renk Tacke Gmbh | Two stage safety clutch for shaft |
| CN2192762Y (en) * | 1994-06-06 | 1995-03-22 | 乐清市振华冶金联轴器实业公司 | Hydraulic safety coupling |
| CN102057174A (en) * | 2008-06-04 | 2011-05-11 | 株式会社捷太格特 | Torque limiter |
| CN101712046A (en) * | 2009-11-24 | 2010-05-26 | 南京钢铁股份有限公司 | Back-up roll shape of medium plate four high stand |
| CN201747923U (en) * | 2010-09-05 | 2011-02-16 | 徐工集团工程机械股份有限公司科技分公司 | Novel ventilation device |
| CN103967960A (en) * | 2013-01-28 | 2014-08-06 | 株式会社捷太格特 | Torque limiter |
| CN104343834A (en) * | 2013-08-05 | 2015-02-11 | 株式会社捷太格特 | Shear valve and torque limiter |
| CN203500321U (en) * | 2013-09-27 | 2014-03-26 | 泰尔重工股份有限公司 | Novel hydraulic safety coupler |
| CN205226133U (en) * | 2015-11-30 | 2016-05-11 | 泰尔重工股份有限公司 | Novel cut pipe and structure of pressurization and quick pressure release |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804977A (en) * | 2020-05-28 | 2020-10-23 | 中国人民解放军63653部队 | Copper pipe pinch-off sealing device and method |
| CN111804977B (en) * | 2020-05-28 | 2021-10-29 | 中国人民解放军63653部队 | Copper pipe pinch-off sealing device and method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |