CN102278561B - Large-caliber long-span compensator for conveying pipe - Google Patents

Large-caliber long-span compensator for conveying pipe Download PDF

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CN102278561B
CN102278561B CN 201110182805 CN201110182805A CN102278561B CN 102278561 B CN102278561 B CN 102278561B CN 201110182805 CN201110182805 CN 201110182805 CN 201110182805 A CN201110182805 A CN 201110182805A CN 102278561 B CN102278561 B CN 102278561B
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delivery pipe
compensator
pull bar
cushion block
unthreaded hole
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CN102278561A (en
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刘江
方红荣
王洪锐
徐铭
许光
修建生
司徒斌
王明哲
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Astronautical Systems Engineering
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Astronautical Systems Engineering
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Abstract

The invention relates to a large-caliber long-span compensator for a conveying pipe, comprising symmetrically-distributed tension rod limiting devices on corrugated pipes at two ends of the conveying pipe, wherein each tension rod limiting device comprises a fixture block, a cushion block and a tension rod; each fixture block is fixed by matching with a bump at one side of the corrugated pipe with a groove, and the two symmetrically-distributed fixture blocks are clamped on the conveying pipe and fixed by first light holes; the cushion blocks are of an approximate triangular structure, three corners are provided with one light hole respectively and two fourth light holes and two bolt holes on a butt flange at the other side of the corrugated pipe are fixed correspondingly; and two ends of each tension rod pass through second light holes of the fixture blocks respectively, and third light holes on the cushion blocks are fixed with the fixture blocks and the cushion blocks by washers with a conical surface, spherical washers, spring washers and nuts. By adding the tension rod structure, the compensator realizes the compensation of assembly displacement, avoids the fatigue failure of the corrugated pipes at an engine end on the conveying pipe in the flying process, simplifies the structure design, and strengthens the reliability.

Description

A kind of heavy caliber long span delivery pipe is used compensator
Technical field
The invention belongs to the carrier rocket technology field, relate to the bigbore compensator of a kind of carrier rocket delivery line, particularly relate to a kind of carrier rocket heavy caliber long span delivery pipe and use compensator.
Background technique
After manned space flight carrier rocket delivery tube increases, the about 5.8m of total length, quality increases; A bellows is respectively arranged before and after this section delivery pipe, middle not fixed support, the lower end bellows fatigue behaviour under random vibration condition descends and fatigue ruption possibly occur; This bellows need satisfy axially when assembling, the radial compensation requirement; When flight, also need compensate the stand stretch that engine operation causes,, need certain lead time and want the verification experimental verification examination if design bellows again; If existing tank structure is proposed to increase the delivery pipe fixed structure, one is that the tank design difficulty is big, and another is that the lead time is long, needs verification experimental verification.Therefore the development of the compensator structure used of a kind of carrier rocket heavy caliber long span delivery pipe becomes exigence.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of existing technology; Provide a kind of heavy caliber long span delivery pipe to use compensator; This compensator has been realized the assembly displacement compensation through increasing bracing structure, fatigue ruption when having avoided on the delivery pipe flight of motor end bellows; And the design that simplifies the structure, strengthened reliability.
Above-mentioned purpose of the present invention is achieved through following technological scheme:
A kind of heavy caliber long span delivery pipe is used compensator; It is characterized in that being included in the pull bar limit stoper that is symmetrically distributed on the bellows at delivery pipe two ends; Said pull bar limit stoper comprises fixture block, cushion block and pull bar; Wherein fixture block is the semicircular structure of band groove; In outward extending two ears in semicircular structure two ends, respectively have in first unthreaded hole, the outward extending ear in middle part and have second unthreaded hole, fixture block cooperates with the thrust of bellows one side through groove to be fixed, and two fixture blocks that are symmetrically distributed are clamped on the delivery pipe and through first unthreaded hole and fix; Cushion block is nearly triangular structure, and a unthreaded hole is respectively arranged on three angles, wherein two corresponding fixing of bolt hole on two the 4th unthreaded holes and the bellows opposite side flange; One end of pull bar passes second unthreaded hole and the fixture block of fixture block and fixes, and the 3rd unthreaded hole and cushion block that the other end of pull bar passes on the cushion block are fixed.
Above-mentioned heavy caliber long span delivery pipe with compensator in, bolt passes first unthreaded hole of two fixture blocks respectively, and through plain washer, bullet pad and nut two fixture blocks is fixed together.
Above-mentioned heavy caliber long span delivery pipe with compensator in, the two ends of pull bar are worm structure, and the length of two ends screw thread all is not less than 1/3 of pull bar length.
Above-mentioned heavy caliber long span delivery pipe with compensator in, the cylindrical body car in the middle of the pull bar becomes tetrahedron, so that spanner is fixed during assembling.
Above-mentioned heavy caliber long span delivery pipe with compensator in, an end of pull bar passes second unthreaded hole of fixture block, and is fixedly connected with fixture block by taper faced washer, spherical washer, bullet pad and nut successively respectively in the both sides of second unthreaded hole; The other end of pull bar passes the 3rd unthreaded hole of cushion block, and is fixedly connected with cushion block by taper faced washer, spherical washer, bullet pad and nut successively respectively in the both sides of the 3rd unthreaded hole.
Above-mentioned heavy caliber long span delivery pipe with compensator in, the material of fixture block, cushion block and pull bar is stainless steel material, stainless steel material is 1Cr18Ni9Ti.
Above-mentioned heavy caliber long span delivery pipe with compensator in, slick and sly processing has been carried out in the corner, three places of nearly triangle cushion block, and does camber with the approaching position of delivery pipe, has avoided interstructural interference to collide with.
Above-mentioned heavy caliber long span delivery pipe with compensator in, the thickness of cushion block is not less than 15mm.
Above-mentioned heavy caliber long span delivery pipe with compensator in, the thickness of fixture block is not less than 30mm.
Above-mentioned heavy caliber long span delivery pipe with compensator in, two the 4th unthreaded holes of cushion block and two bolts hole on the bellows opposite side flange install and fix through bolt, plain washer and nut.
The present invention compared with prior art has following beneficial effect:
When (1) bracing structure that increase to be symmetrically distributed with compensator of delivery pipe of the present invention does not influence former bellows general assembly axially, the radial displacement compensation; When requiring, can regulate bellows floor-mounted compensating axial through the nut on the pull bar; When the compensation of bellows floor-mounted can be regulated through the taper faced washer on the pull bar, spherical washer when radially requiring; Structural loads during flight are born by bracing structure, fatigue ruption when having avoided on the delivery pipe flight of motor end bellows;
(2) delivery pipe of the present invention utilizes the thrust on the former delivery pipe connecting ring with compensator; Design fixture block structure is carried out corresponding cooperation; The cushion block structural design then makes full use of 2 the bolt hole locations of structures and the size of former delivery pipe flange connections; Only change and add stay bolt and can use, the design that simplifies the structure, and avoided the change of tank structure to reach test, the analytical work that causes thus;
(3) delivery pipe of the present invention is stainless steel material with the fixture block in the compensator, cushion block and pull bar and processes, preferred 1Cr18Ni9Ti, and the thickness of cushion block and fixture block carried out preferably, make whole bracing structure have structural strength, rigidity preferably;
(4) delivery pipe of the present invention uses that the cushion block profile is triangle in the compensator; Slick and sly processing has been carried out in corner, 3 place; Made arc with delivery pipe near the position, both avoided interstructural interference to collide with, also reduced simultaneously and finish component quality; The quality of this outside link is also less, and is very little to the whole rocket quality influence;
(5) delivery pipe of the present invention is not less than 1/3 of pull bar total length with the two ends screw thread effective length of pull bar in the compensator, can guarantee that bellows regulates on a large scale; Cylindrical body car in the middle of this outside link becomes tetrahedron, and spanner is fixed when being convenient to assemble;
(6) delivery pipe of the present invention is identified the magnitude vibration test with compensator through ground; The intact destruction of bracing structure that shows increase; The bracing structure that increases does not have influence to booster rocket structure general assembly assembly process, and the bracing structure of increase does not have influence to booster rocket delivery line POGO;
(7) delivery pipe of the present invention is simple with the bracing structure that increases in the compensator, and is easy to operate, good reliability.
Description of drawings
Fig. 1 uses the compensator structure outline drawing for delivery pipe of the present invention;
Fig. 2 for delivery pipe of the present invention with compensator two dimension plan view;
Fig. 3 for delivery pipe of the present invention with the local A enlarged view of compensator two dimension;
Fig. 4 for delivery pipe of the present invention with compensator two dimension plan view;
Fig. 5 uses the compensator structure sectional drawing for delivery pipe of the present invention;
Fig. 6 for delivery pipe of the present invention with fixture block structural representation in the compensator;
Fig. 7 for delivery pipe of the present invention with fixture block section of structure in the compensator;
Fig. 8 for delivery pipe of the present invention with cushion block structural representation in the compensator;
Fig. 9 for delivery pipe of the present invention with cushion block side view in the compensator;
Figure 10 is a fixture block dimensioned drawing 1 in the embodiment of the invention;
Figure 11 is a fixture block dimensioned drawing 2 in the embodiment of the invention;
Figure 12 is a cushion block dimensioned drawing 1 in the embodiment of the invention;
Figure 13 is a cushion block dimensioned drawing 2 in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
Boosting oxygen delivery pipe axially is about 5800mm; Radially be about 470mm; Respectively there is 1 bellows 20 delivery pipe 1 front and back, are illustrated in figure 1 as delivery pipe of the present invention and use the compensator structure outline drawing, and wherein compensator is the pull bar limit stoper that is symmetrically distributed on the bellows 20; As shown in Figure 1, the pull bar limit stoper comprises fixture block 6, cushion block 7 and pull bar 8.
Be illustrated in figure 6 as delivery pipe of the present invention with fixture block structural representation in the compensator; Fig. 7 for delivery pipe of the present invention with fixture block section of structure in the compensator; Fixture block 6 is the semicircular structure of band groove 30, and outward extending ear respectively has one first unthreaded hole 25 at the semicircular structure two ends, the outward extending ear in middle part has second unthreaded hole 24.Be illustrated in figure 2 as delivery pipe of the present invention with compensator two dimension plan view; Shown in Figure 5ly use the compensator structure sectional drawing for delivery pipe of the present invention; Utilize the thrust 23 on the bellows 20 left end connecting rings of former delivery pipe 1; Make fixture block 6 pass through groove 30 transition fit with it; Fit dimension and tolerance to fixture block 6 propose high requirement; Two fixture blocks 6 that are symmetrically distributed are clamped on the delivery pipe 1 and through first unthreaded hole 25 to be fixed; First unthreaded hole 25 is of a size of first unthreaded hole 25 that
Figure BSA00000528939200041
bolt 9 passes two fixture blocks 6 respectively; And through plain washer 13, bullet pad 4 and M10 nut 11 two fixture blocks 6 are fixed together, second unthreaded hole 24 that is of a size of
Figure BSA00000528939200042
is used for being connected of fixture block 6 and pull bar 8.Fixture block 6 materials are stainless steel 1Cr18Ni9Ti, and thickness is not less than 30mm, have guaranteed that structural member has certain intensity and rigidity.
Be illustrated in figure 8 as delivery pipe of the present invention with cushion block structural representation in the compensator; Shown in Figure 9 for delivery pipe of the present invention with cushion block side view in the compensator; Cushion block 7 profiles are that nearly triangle is (because slick and sly processing has been carried out in the corner, three places of diabolo cushion block 7; And do camber with delivery pipe 1 approaching position; Therefore the profile of cushion block 7 is represented with nearly triangle); A unthreaded hole is respectively arranged on three angles; Comprise two the 4th unthreaded holes 27; It is corresponding with the bolt hole size on the abutted flange 22 to be of a size of
Figure BSA00000528939200043
, through increasing former bolt 10 length, installs and fixes with M10 nut 11, plain washer 13; Be illustrated in figure 4 as delivery pipe of the present invention with compensator two dimension plan view, the 3rd unthreaded hole 26 of
Figure BSA00000528939200051
on the cushion block 7 is used to install pull bar 8.Cushion block 7 materials are stainless steel 1Cr18Ni9Ti, and thickness is not less than 15mm, have guaranteed that structural member has certain intensity and rigidity.Slick and sly processing has been carried out in the corner, 3 place of cushion block 7, has made arc with delivery pipe 1 near the position, has both avoided interstructural interference to collide with, and also reduces simultaneously and finishes component quality.
Pull bar 8 is about 300mm, and material is stainless steel 1Cr18Ni9Ti, screw thread specification M12 * 1.5, and two ends screw thread effective length is not less than 120mm, can guarantee that bellows 20 regulates on a large scale.Cylindrical body car in the middle of the pull bar 8 becomes tetrahedron 21, and spanner is fixed when being convenient to assemble.Pull bar 8 is identical with the Placement of fixture block 6, cushion block 7; As shown in Figure 2; Shown in Figure 3 for delivery pipe of the present invention with the local A enlarged view of compensator two dimension; One end of pull bar 8 passes second unthreaded hole 24 of fixture block 6, and is fixedly connected with fixture block 6 by taper faced washer 3, spherical washer 2, bullet pad 5 and M12 nut 12 successively respectively in the both sides of second unthreaded hole 24; The other end of pull bar 8 passes the 3rd unthreaded hole 26 of cushion block 7; And is fixedly connected the wherein spherical washer 2 of employing, the axial and radial displacement when taper faced washer 3 can compensate general assembly respectively successively with cushion block 7 by taper faced washer 3, spherical washer 2, bullet pad 5 and M12 nut 12 in the both sides of the 3rd unthreaded hole 26.
Bellows is generally compressive state; Treat to distinguish spherical washer 2, taper faced washer 3, bullet pad 5, M12 nut 12 on the inside regulating tie bar 8 according to the actual displacement size after delivery pipe is installed; After putting in place, pull bar 8 structural adjustments keep this state; Structural loads during flight are born by bracing structure, have avoided the fatigue ruption of bellows.
The compensator structure that pull bar of the present invention is spacing can be regulated through the nut on the pull bar 8 12 when effect one is bellows 20 floor-mounted compensating axial requirements.Effect two is can regulate through the taper faced washer on the pull bar 83, spherical washer 2 when radially requiring when the compensation of bellows 20 floor-mounted.Effect three is that flying time limit system lower end bellows 20 is axial, radial deformation to be to improve the stochastic vibration fatigue behaviour of this bellows 20, and the stand stretch that engine operation causes during flight is born by the front end bellows.
Provide fixture block detailed dimensions figure in the embodiment of the invention like Figure 10,11, Figure 12,13 provides cushion block detailed dimensions Fig. 1 in the embodiment of the invention.
The above; Be merely the best embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
The content of not doing to describe in detail in the specification of the present invention belongs to related domain professional and technical personnel's known technology.

Claims (8)

1. a heavy caliber long span delivery pipe is used compensator; It is characterized in that being included in the last pull bar limit stoper that is symmetrically distributed of bellows (20) at delivery pipe (1) two ends; Said pull bar limit stoper comprises fixture block (6), cushion block (7) and pull bar (8); Wherein fixture block (6) is the semicircular structure of band groove (30); In outward extending two ears in semicircular structure two ends, respectively have in first unthreaded hole (25), the outward extending ear in middle part and have second unthreaded hole (24); Fixture block (6) cooperates with the thrust (23) of bellows (20) one sides through groove (30) to be fixed, and two fixture blocks (6) that are symmetrically distributed are clamped in delivery pipe (1) and go up and fix through first unthreaded hole (25); Cushion block (7) is nearly triangular structure, and a unthreaded hole is respectively arranged on three angles, wherein two corresponding fixing of bolt hole on two the 4th unthreaded holes (27) and bellows (20) the opposite side flange (22); One end of pull bar (8) passes second unthreaded hole (24) of fixture block (6); And be fixedly connected with fixture block (6) by taper faced washer (3), spherical washer (2), bullet pad (5) and nut (12) successively respectively in the both sides of second unthreaded hole (24); The other end of pull bar (8) passes the 3rd unthreaded hole (26) of cushion block (7); And be fixedly connected with cushion block (7) by taper faced washer (3), spherical washer (2), bullet pad (5) and nut (12) successively respectively in the both sides of the 3rd unthreaded hole (26); The two ends of said pull bar (8) are worm structure, and the length of two ends screw thread all is not less than 1/3 of pull bar (8) length.
2. a kind of heavy caliber long span delivery pipe according to claim 1 is used compensator; It is characterized in that: also comprise bolt (9); Said bolt (9) passes first unthreaded hole (25) of two fixture blocks (6) respectively, and through plain washer (13), bullet pad (4) and nut (11) two fixture blocks is fixed together.
3. a kind of heavy caliber long span delivery pipe according to claim 1 is used compensator, it is characterized in that: the cylindrical body car in the middle of the said pull bar (8) becomes tetrahedron (21), so that spanner is fixed during assembling.
4. a kind of heavy caliber long span delivery pipe according to claim 1 is used compensator, it is characterized in that: the material of said fixture block (6), cushion block (7) and pull bar (8) is stainless steel material, and stainless steel material is 1Cr18Ni9Ti.
5. a kind of heavy caliber long span delivery pipe according to claim 1 is used compensator; It is characterized in that: slick and sly processing has been carried out in the corner, three places of said nearly triangle cushion block (7); And do camber with the approaching position of delivery pipe (1), avoided interstructural interference to collide with.
6. use compensator according to claim 1 or 4 described a kind of heavy caliber long span delivery pipes, it is characterized in that: the thickness of said cushion block (7) is not less than 15mm.
7. use compensator according to claim 1 or 4 described a kind of heavy caliber long span delivery pipes, it is characterized in that: the thickness of said fixture block (6) is not less than 30mm.
8. a kind of heavy caliber long span delivery pipe according to claim 1 is used compensator, it is characterized in that: two bolts hole on two the 4th unthreaded holes (27) of said cushion block (7) and bellows (20) the opposite side flange (22) install and fix through bolt (10), plain washer (13) and nut (11).
CN 201110182805 2011-06-29 2011-06-29 Large-caliber long-span compensator for conveying pipe Active CN102278561B (en)

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CN104959752B (en) * 2015-07-02 2016-10-05 中国航天科技集团公司长征机械厂 Corrugated expansion joint stretches fixture
CN107763304A (en) * 2017-10-20 2018-03-06 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of replacing options of the vertical FlexbleJoint in high-altitude
CN107934193B (en) * 2017-11-08 2024-03-01 广东省工业设备安装有限公司 Butt joint fixing device for corrugated expansion joint
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CN112728271B (en) * 2020-12-30 2022-08-30 沧州鑫泰机械设备有限公司 Elastic damping type compensator
CN113983238A (en) * 2021-10-29 2022-01-28 沪东中华造船(集团)有限公司 Corrugated pipe installation adjusting device on ship and using method thereof
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CN1614289A (en) * 2004-11-12 2005-05-11 刘运章 Adjustable bending rubber joint
CN201129589Y (en) * 2007-12-15 2008-10-08 狄广龙 Anti-corrosive metallic corrugated compensator for gas pipeline
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CN201866459U (en) * 2010-11-10 2011-06-15 河南省电力勘测设计院 Novel rubber compensator for reducing lateral thrust

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