CN203948828U - A kind of connection part of blanking channel - Google Patents

A kind of connection part of blanking channel Download PDF

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Publication number
CN203948828U
CN203948828U CN201420198612.1U CN201420198612U CN203948828U CN 203948828 U CN203948828 U CN 203948828U CN 201420198612 U CN201420198612 U CN 201420198612U CN 203948828 U CN203948828 U CN 203948828U
Authority
CN
China
Prior art keywords
clamping
flange
bolt
blanking channel
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420198612.1U
Other languages
Chinese (zh)
Inventor
田婉洁
张力恒
惠亚军
蔡军礼
张瑾
吕子君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN AEROSPACE CHEMICAL PROPULTION PLANT
Original Assignee
XI'AN AEROSPACE CHEMICAL PROPULTION PLANT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN AEROSPACE CHEMICAL PROPULTION PLANT filed Critical XI'AN AEROSPACE CHEMICAL PROPULTION PLANT
Priority to CN201420198612.1U priority Critical patent/CN203948828U/en
Application granted granted Critical
Publication of CN203948828U publication Critical patent/CN203948828U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A connection part for blanking channel, comprises two clamping pieces and two clamping bolts.Wherein one end of two clamping pieces is hinged by connecting pin, and the other end of these two clamping pieces all has attachment lug, by this attachment lug, two described clamping pieces is connected with clamping bolt.Clamping piece after connection forms circular.The draw-in groove that is useful on clamping flange at the internal surface of clamping piece, in this draw-in groove, having cross section is the seal ring of U-shaped.In the time being sleeved on circumference of flange by described clamping piece, two flanges are arranged in the seal ring of draw-in groove by being installed, thereby by two seamless being connected of flange.The utlity model has easy and simple to handle, save labor, the stability of a system is good, the feature of good airproof performance, and overcome dismounting when blanking channel bolt flange connect the potential safety hazard causing.

Description

A kind of connection part of blanking channel
Technical field
The invention belongs to Solid Rocket Motor Technology field, when relating to a kind of solid propellant rocket motor charge cast operation propellant agent and being poured into burning chamber shell by hopper, by the blanking channel of the each assembly of clip connected.
Background technique
Batch produce the model solid engines charge processes that adopt multiple binding type vacuum pouring moulding more, adopt the secondary vacuum intubate pour device being formed by hopper, secondary hopper, rubber pipe valve, blanking shower nozzle, the many siphunculus of sub-material, pouring system, positioning disk and a vacuum pouring tank.Secondary hopper and pouring can degree of vacuum reach after requirement, and medicine slurry flows into secondary hopper, and piles up in secondary hopper through rubber pipe valve, blanking shower nozzle card from a hopper.Secondary hopper is to the continuous flow field of firing chamber forming closed, and the pressured difference of medicine slurry flows into this flow field.In this flow field, Composite Propellant Slurry, through secondary hopper feed opening, is diverted to each firing chamber by the many siphunculus of sub-material by medicine slurry.The many siphunculus of sub-material are made up of many siphunculus and bend pipe.Fall into firing chamber by deadweight by secondary hopper at blanking initial stage propellant agent, in cast later stage slurry property variation, need to give the pressurization of secondary hopper, treat that medicine slurry waters full firing chamber, from pouring system intubate gap or positioning disk exhaust port are emerged, need to remove pouring can vacuum, in whole process, many siphunculus of sub-material pipe is outer and overpressure is poor changes, and therefore, resistance to compression, good seal performance are the basic demands that the each assembly of the many siphunculus of sub-material connects.
At present, the Placement of many siphunculus and bend pipe is that flange is connected, and puts into two centres that need to connect the flange on the mouth of pipe by pad, strains it is combined closely with bolt, and required flange clamping bolt has pad, bolt, nut.This connecting means is after motor body is fitted into cylinder and cast and finishes, have the component such as a large amount of pads, bolt, nut to need installation or removal, workload is large, and length expends time in, and bolt surface is while being stained with propellant agent, easily causes potential safety hazard when demounting bolt.
The principle of the clip connected of mentioning in paper " clamp band type pipeline is connected to the application in a construction " literary composition is: the position first tubing being connected with pipe fitting channeling machine is processed into annular groove, after dress C shape rubber seal, be connected with the quick-assembling joint of clamping bolt composition with clamping piece, the inner edge of clamping piece is mounted in the pipeline groove processing with channeling machine, fastening with fastening pipe fitting, utilize under pressure rubber seal to make pipeline and clip connected part realize sealing.Pipeline connection in construction at present makes in this way more, but the Applicable scope of the method has certain narrow limitation, being only applicable to the mouth of pipe does not have the pipeline of flanged surface to connect, and in use needs the connection part processing annular groove to pipe fitting and pipe fitting, belongs to destructive and connects.There is flanged surface and can not cannot use the pipe fitting of pipe fitting connection part processing groove for the mouth of pipe.
Summary of the invention
For overcoming the many installation or removal of the part existing in prior art, workload is large, the length that expends time in, and also bolt surface is while being stained with propellant agent, easily causes the deficiency of potential safety hazard when demounting bolt, the present invention proposes a kind of connection part of blanking channel.
The present invention includes two clamping pieces and two clamping bolts.Wherein one end of two clamping pieces is hinged by connecting pin, and the other end of these two clamping pieces all has attachment lug, by this attachment lug, two described clamping pieces is connected with clamping bolt.Clamping piece after connection forms circular.
The draw-in groove that is useful on clamping flange at the internal surface of clamping piece, in this draw-in groove, having cross section is the seal ring of U-shaped.In the time being sleeved on circumference of flange by described clamping piece, two flanges are arranged in the seal ring of draw-in groove by being installed, thereby by two seamless being connected of flange.
When the invention provides a kind of propellant agent and being poured into burning chamber shell by hopper, by the blanking channel of the each assembly of clip connected, the advantages such as that this connecting means not only has is easy and simple to handle, save labor, the stability of a system is good, good airproof performance, and bolt flange connects the potential safety hazard causing can overcome dismounting blanking channel time.
The present invention utilizes clamping piece to substitute original bolt flange to connect, by clamping piece, rubber seal, clamping bolt, bend pipe and straight tube are connected into blanking channel, by tightening, loose bolts completes installations, the connection of dismantling clamping piece pipeline, convenient, flexible.Described rubber seal is placed in clamping piece inner side when mounted, ensures the sealability of blanking channel.
After the present invention's application, obtain following effect:
(1) it is convenient, flexible that blanking channel adopts clip connected, the 5min when 20min when installation time is connected by original bolt shortens to clip connected;
(2) time with bolts, after long-time use due to the effect of stress of bolt to screw and pipe fitting flange face, cause screw and flanged surface distortion, sealability variation after distortion, the phenomenon that there will be propellant agent to ooze out from screw, cause screw thread place to be stained with propellant agent, in the time that cast end dismounting turns bolt, have very large potential safety hazard.Adopting after clip connected, use the same time, there is not distortion in the flanged surface of pipe fitting, did not occur the phenomenon that propellant agent oozes out simultaneously yet.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention for propellant agent blanking channel;
Fig. 2 is the structural representation of connection part;
Fig. 3 is the joint sectional view after the present invention connects;
In figure: 1. straight tube; 2. clamping piece; 3. bend pipe; 4. clamping bolt; 5. flanged surface; 6. rubber seal
Embodiment
With reference to above-mentioned accompanying drawing, technological scheme of the present invention is described further.
The present embodiment is a kind of connection part of blanking channel, and as shown in Figure 1, the connection part of described blanking channel comprises two clamping pieces 2 and two clamping bolts 4.Wherein one end of two clamping pieces is hinged by connecting pin, and the other end of these two clamping pieces 2 all has attachment lug, by this attachment lug, described clamping piece is connected with clamping bolt 4.Clamping piece after connection forms circular.
The internal surface of described clamping piece 2 is useful on the draw-in groove of clamping flange, and in this draw-in groove, having cross section is the seal ring 6 of U-shaped.In the time being sleeved on circumference of flange by described clamping piece, two flanges are arranged in the seal ring of draw-in groove by being installed, thereby by two seamless being connected of flange.Described clamping piece 2 combines by two stainless steel semicircles.
Described clamping bolt 4 is lock bolt, and by adjusting, the locking degree of bolt is adjusted straight tube 1 in clamping piece 2 and straight blanking channel and all there is adpting flange 5 at the two ends of bend pipe 3.While connecting described straight tube and bend pipe, the connection part proposing by the present embodiment, STRESS VARIATION causes the distortion of flange, screw when having overcome bolt in flange surface perforate and connect, thereby cause the defect of sealing variation, make pipe fitting in the time connecting, the all stress equilibriums of flanged surface 5, have ensured stability and the sealing of whole blanking channel system.
As shown in Figure 2, when propellant casting, the flanged surface of two straight tubes 1, a bend pipe 3 is aimed at, put rubber seal 6 in adjacent pipe end flange outside, clamping piece 2 is placed in rubber seal 6 outsides, fastening with the lock bolt of clamping bolt 4, is combined into complete propellant agent blanking channel, propellant agent, by secondary hopper, is poured into engine chamber through this blanking channel.
After cast finishes, the lock bolt of loosening clamping bolt 2, opens clamping piece 2, takes off rubber seal 6, and separately straight tube 1, bend pipe 3, clean out propellant agent residual each assembly surface.
The present embodiment has flexible and convenient operation, and the stability of a system, good airproof performance have overcome the hidden danger causing when bolt flange connects, improve the Security of powder charge process, save the time of installation, demounting bolt, nut, improved work efficiency, reduced cost of production.

Claims (1)

1. a connection part for blanking channel, is characterized in that, the connection part of described blanking channel comprises two clamping pieces and two clamping bolts; Wherein one end of two clamping pieces is hinged by connecting pin, and the other end of these two clamping pieces all has attachment lug, by this attachment lug, two described clamping pieces is connected with clamping bolt; Clamping piece after connection forms circular; The draw-in groove that is useful on clamping flange at the internal surface of clamping piece, in this draw-in groove, having cross section is the seal ring of U-shaped; In the time being sleeved on circumference of flange by described clamping piece, two flanges are arranged in the seal ring of draw-in groove by being installed, thereby by two seamless being connected of flange.
CN201420198612.1U 2014-04-21 2014-04-21 A kind of connection part of blanking channel Expired - Fee Related CN203948828U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420198612.1U CN203948828U (en) 2014-04-21 2014-04-21 A kind of connection part of blanking channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420198612.1U CN203948828U (en) 2014-04-21 2014-04-21 A kind of connection part of blanking channel

Publications (1)

Publication Number Publication Date
CN203948828U true CN203948828U (en) 2014-11-19

Family

ID=51890864

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420198612.1U Expired - Fee Related CN203948828U (en) 2014-04-21 2014-04-21 A kind of connection part of blanking channel

Country Status (1)

Country Link
CN (1) CN203948828U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104801915A (en) * 2015-05-07 2015-07-29 盐山县盛基管件制造有限公司 Pump elbow-welding machine
CN105410101A (en) * 2015-12-16 2016-03-23 苏州太湖国家旅游度假区希成五金加工厂 Pastry nozzle fixing ring
CN105737610A (en) * 2014-12-12 2016-07-06 宜兴市宇龙电炉成套设备有限公司 Feeding post assembling structure of submerged arc furnace
WO2018024174A1 (en) * 2016-08-01 2018-02-08 杨顺立 Multi-petaled oblique-plane hoop and pipe connector thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105737610A (en) * 2014-12-12 2016-07-06 宜兴市宇龙电炉成套设备有限公司 Feeding post assembling structure of submerged arc furnace
CN104801915A (en) * 2015-05-07 2015-07-29 盐山县盛基管件制造有限公司 Pump elbow-welding machine
CN105410101A (en) * 2015-12-16 2016-03-23 苏州太湖国家旅游度假区希成五金加工厂 Pastry nozzle fixing ring
WO2018024174A1 (en) * 2016-08-01 2018-02-08 杨顺立 Multi-petaled oblique-plane hoop and pipe connector thereof
EA038839B1 (en) * 2016-08-01 2021-10-27 Шуньли Ян Multi-petaled oblique-plane hoop and pipe connector thereof

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141119

Termination date: 20190421

CF01 Termination of patent right due to non-payment of annual fee