CN104959752B - Corrugated expansion joint stretches fixture - Google Patents
Corrugated expansion joint stretches fixture Download PDFInfo
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- CN104959752B CN104959752B CN201510380496.4A CN201510380496A CN104959752B CN 104959752 B CN104959752 B CN 104959752B CN 201510380496 A CN201510380496 A CN 201510380496A CN 104959752 B CN104959752 B CN 104959752B
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- anchor ear
- pull bar
- screw mandrel
- expansion joint
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of corrugated expansion joint to stretch fixture, including being separately positioned on the left anchor ear of corrugated tube left end recess and right-hand member high spot and right anchor ear, described left anchor ear by two left half, regulation bolt, two push against plate and constitute, right anchor ear is formed by connecting by two right half, it is provided with connecting plate outside right half, is provided with screw mandrel in the middle part of connecting plate, between left and right anchor ear, is provided with pull bar, described screw mandrel is socketed with feed screw nut away from one end of left anchor ear, and the other end is connected with pull bar by link gear.Instant invention overcomes in prior art, corrugated pipe clamp structure is complicated, it is necessary to adjusts multiple position and could stretch or the defect of compress bellows compensator length；By the annexation between two anchor ears, link gear and screw mandrel, reach to adjust left anchor ear and the right anchor ear purpose relative to position by rotary screw, thus reach to adjust the purpose of corrugated expansion joint length.
Description
Technical field
The present invention relates to a kind of flexible fixture, particularly relate to a kind of corrugated expansion joint and stretch fixture.
Background technology
Corrugated expansion joint is common weldment, and in practice, its two ends often need same pipeline, box parts etc. to weld together.But, due to mismachining tolerance, the reason such as expand with heat and contract with cold, the length of corrugated expansion joint is difficult to meet and is actually needed.Accordingly, it would be desirable to a kind of fixture, before welding, by the corrugated tube in stretching or compress bellows compensator, by its length adjustment to required, and this fixture of postwelding can be removed very easily.
At present, the conventional flexible fixture basic condition of corrugated expansion joint is: fixture is by two baffle plates, 4 pull bars, 16 nut compositions, pull bar passes two baffle plates, each pull bar connects in each baffle plate both sides two nuts, reaches stretching or the purpose of compress bellows compensator length by the position of 16 nuts of regulation during work.
Its major defect is:
1, being not carried out linkage between pull bar, 16 nut locations need to be adjusted, lose time by stretching and compression repeatedly every time, inefficiency；
2, each pull bar can only control 1/4th of corrugated tube cross section, and in stretching or compression process, corrugated tube is in repeatedly the state of torsional deformation, in the case of bellows stiffness is huge, needs the biggest moment, and stretching and compression process just can be made to continue；
3, stretching and compress and can not realize by regulating same nut, the two is both needed to be adjusted two nut locations of baffle plate both sides.
Up till now, the patent of the flexible fixture of corrugated expansion joint also it is not involved with.
Summary of the invention
The purpose of the present invention is that offer one solves the problems referred to above, can simply, easily according to actual size, a kind of corrugated expansion joint being adjusted the length of corrugated tube stretches fixture.
To achieve these goals, the technical solution used in the present invention is such that a kind of corrugated expansion joint and stretches fixture, including being separately positioned on the left anchor ear of corrugated tube left end recess and right-hand member high spot and right anchor ear, described left anchor ear is formed by connecting by two panels left half is involutory, left half connects one near one end of right anchor ear by regulation bolt and pushes against plate, the described plate that pushes against also is located at described recess, and can be with the regulation of regulation bolt along corrugated tube axially-movable；
Described right anchor ear is formed by connecting by two panels right half is involutory, connecting plate it is provided with outside right half, screw mandrel it is provided through in the middle part of connecting plate, it is provided with pull bar between left anchor ear and right anchor ear, described pull bar one end is fixing with left anchor ear to be connected, and the other end is flexibly connected with connecting plate, and described screw mandrel is socketed with feed screw nut away from one end of left anchor ear, the other end is connected with pull bar by link gear, and described screw mandrel and pull bar are all axially arranged along corrugated tube.
As preferably: described drive mechanism includes two leads, two limited blocks and a guide plate, described lead is parallel with screw mandrel and is positioned at screw mandrel both sides, guide plate is socketed on two leads, it is flexibly connected with two leads, pull bar is arranged with lead one_to_one corresponding, and the pull bar of correspondence and lead are connected by limited block, guide plate two ends are fixing with two limited blocks to be connected, and middle part is fixing with screw mandrel to be connected.
As preferably: described in push against plate be semicircular arc, when two panels left half is involutory, push against plate the most involutory rounded.
As preferably: described two panels left half, two panels right half use threaded,
As preferably: described pull bar is threadeded with left anchor ear and right anchor ear, and limited block is socketed on pull bar, spacing by fastening bolt, and with guide plate clamping, guide plate is connected with wire rod thread.
Compared with prior art, it is an advantage of the current invention that: overcome in prior art, corrugated pipe clamp structure is complicated, it is necessary to adjusts multiple position and could stretch or the defect of compress bellows compensator length；By the annexation between two anchor ears, link gear and screw mandrel, reach to adjust left anchor ear and the right anchor ear purpose relative to position by rotary screw, thus reach to adjust the purpose of corrugated expansion joint length.Making stretching or compress bellows compensator length become simple, time-consuming, work efficiency is high, meanwhile, can apply on the corrugated tube that rigidity is huge, easy to adjust.
It addition, concrete structure also has the advantage that:
1. achieve linkage between a feed screw nut and two pull bars, every time stretching and compression, only need two people, two feed screw nuts of rotating in same direction simultaneously, can be by corrugated expansion joint length adjustment to required, whole regulation process time is short, and work efficiency is high.
2., during liang people rotary screw rod nut simultaneously, two guide plate displacements are substantially synchronized, and the displacement of four pull bars is also substantially synchronized, therefore in stretching or compression process, corrugated tube is not distorted and deforms or deform the least, and needed for whole adjustment process, moment is little, and labor strength is little.
3. stretching and compression process can realize by regulating same feed screw nut, and when rotating two feed screw nuts to a direction, corrugated expansion joint is stretched, and when rotating two feed screw nuts round about, corrugated expansion joint is compressed.
4. about, the hoop of anchor ear is made up of two halves, is connected by bolt and nut, and pull bar can take out along corrugated tube axis, and therefore after corrugated expansion joint two ends are welded with other parts, fixture can be removed very easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the front view of left anchor ear；
Fig. 3 is the top view of left anchor ear；
Fig. 4 is the right view of left anchor ear；
Fig. 5 is the front view of right anchor ear；
Fig. 6 is the left view of right anchor ear.
In figure: 1, left anchor ear；11, left half；12, regulation bolt；13, plate is pushed against；2, right anchor ear；21, right half；22, connecting plate；23, groove；3, pull bar；4, limited block；5, lead；6, guide plate；7, screw mandrel；8, feed screw nut.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1: see Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of corrugated expansion joint stretches fixture, including the left anchor ear 1 and the right anchor ear 2 that are separately positioned on corrugated tube left end recess and right-hand member high spot, described left anchor ear 1 is formed by connecting by two panels left half 11 is involutory, left half 11 connects one near one end of right anchor ear 2 by regulation bolt 12 and pushes against plate 13, the described plate 13 that pushes against also is located at described recess, and can be with the regulation of regulation bolt 12 along corrugated tube axially-movable；Described right anchor ear 2 is formed by connecting by two panels right half 21 is involutory, connecting plate 22 it is provided with outside right half 21, screw mandrel 7 it is provided through in the middle part of connecting plate 22, it is provided with pull bar 3 between left anchor ear 1 and right anchor ear 2, described pull bar 3 one end is fixing with left anchor ear 1 to be connected, and the other end is flexibly connected with connecting plate 22, and described screw mandrel 7 is socketed with feed screw nut 8 away from one end of left anchor ear 1, the other end is connected with pull bar 3 by link gear, and described screw mandrel 7 and pull bar 3 are all axially arranged along corrugated tube.
In the present embodiment, the concrete mode that described pull bar 3 other end is flexibly connected with connecting plate 22 is that connecting plate 22 is provided with groove 23, pull bar 3 is placed in groove 23, when link gear is subjected to displacement, when namely Bellows Length changes, pull bar 3 slides in groove 23.
In the present embodiment, described drive mechanism includes two lead 5, two limited block 4 and guide plates 6, described lead 5 is parallel with screw mandrel 7 and is positioned at screw mandrel 7 both sides, pull bar 3 is arranged with lead 5 one_to_one corresponding, and the pull bar 3 of correspondence and lead 5 are connected by limited block 4, guide plate 6 two ends are connected with two limited blocks 4, and middle part is connected with screw mandrel 7.During actual connection, lead 5 is connected with guide plate 6 and axial displacement can occur between the two, fix with screw mandrel 7 in the middle part of guide plate 6 and be connected, two ends are connected with two leads 5, limited block 4 tips upside down on the axial displacement closing both on guide plate 6 with Rhizoma Nelumbinis, and pull bar 3 is connected for fixing with the connected mode of limited block 4.
Owing to each right half 21 connects a screw mandrel 7, two leads 5, two limited blocks 4, one guide plate 6, so a total of two screw mandrels 7 of this structure, four leads 5, four limited blocks 4, two guide plates 6, due to lead 5 and pull bar 3 one_to_one corresponding, pull bar 3 is also four, for dynamics symmetrically, four leads 5 are uniformly arranged on corrugated tube surrounding by us, so, four limited blocks 4, four pull bars 3 are also uniformly dispersed in corrugated tube surrounding, in like manner, in the present embodiment, push against plate 13 and produce to allow and preferably push against effect, we will push against plate 13 and be set to semicircular arc, when two panels left half 11 is involutory, push against plate 13 the most involutory rounded.
Additionally, in the present embodiment, each parts connected mode is: described two panels left half 11, two panels right half 21 use threaded, described pull bar 3 is threadeded with left anchor ear 1 and right anchor ear 2, limited block 4 is socketed on pull bar 3, spacing by fastening bolt, and with guide plate 6 clamping, guide plate 6 is threadeded with screw mandrel 7.
Installation method of the present invention is as follows:
1. left anchor ear 1 is arranged on the recess on the left of corrugated tube, right anchor ear 2 is arranged on the high spot of the right survey of corrugated tube, adjust the regulation bolt 12 on left anchor ear 1, make left anchor ear 1 and push against the integral thickness change of plate 13, thus overall both sides are in close contact with recess both sides with pushing against plate 13 to allow left anchor ear 1.
2. pull bar 3 is arranged on left anchor ear 1 and right anchor ear 2, limited block 4 is fixed on pull bar 3, adjust guide plate 6 position, it is ensured that limited block can tip upside down on guide plate 6 for 4 times.
Using method of the present invention is:
With instrument rotary screw rod nut 8, screw mandrel 7 translates relative to right anchor ear 2, the motion of screw mandrel 7 drives guide plate 6 to move, the motion of guide plate 6 drives limited block 4 to move, the motion band fortune pull bar 3 of limited block 4 moves, the final result of motion is exactly relative to right anchor ear 2, left anchor ear 1 there occurs that translation, corrugated tube are stretched or compressed, and corrugated expansion joint length there occurs change.
In the present embodiment, between a feed screw nut 8 and two pull bars 3, achieve linkage, every time stretching and compression, only need two people, two feed screw nuts 8 of rotating in same direction simultaneously, can be by corrugated expansion joint length adjustment to required；Owing to method of adjustment is simple, adjustment can be accomplished to synchronize, and in stretching or compression process, corrugated tube is not distorted and deforms or deform the least, and needed for whole adjustment process, moment is little；Stretching and compression process can realize by regulating same feed screw nut 8；The hoop of left and right anchor ear 2 is made up of two halves, is connected by bolt and nut, and pull bar 3 can take out along corrugated tube axis, and therefore after corrugated expansion joint two ends are welded with other parts, fixture can be removed very easily.
Claims (4)
1. a corrugated expansion joint stretches fixture, it is characterized in that: include being separately positioned on corrugated tube left end recess and the left anchor ear of right-hand member high spot and right anchor ear, described left anchor ear is formed by connecting by two panels left half is involutory, left half connects one near one end of right anchor ear by regulation bolt and pushes against plate, the described plate that pushes against also is located at described recess, and can be with the regulation of regulation bolt along corrugated tube axially-movable；
Described right anchor ear is formed by connecting by two panels right half is involutory, connecting plate it is provided with outside right half, screw mandrel it is provided through in the middle part of connecting plate, it is provided with pull bar between left anchor ear and right anchor ear, described pull bar one end is fixing with left anchor ear to be connected, and the other end is flexibly connected with connecting plate, and described screw mandrel is socketed with feed screw nut away from one end of left anchor ear, the other end is connected with pull bar by link gear, and described screw mandrel and pull bar are all axially arranged along corrugated tube；
Described link gear includes two leads, two limited blocks and a guide plate, described lead is parallel with screw mandrel and is positioned at screw mandrel both sides, guide plate is socketed on two leads, it is flexibly connected with two leads, pull bar is arranged with lead one_to_one corresponding, and the pull bar of correspondence and lead are connected by limited block, guide plate two ends are fixing with two limited blocks to be connected, and middle part is fixing with screw mandrel to be connected.
Corrugated expansion joint the most according to claim 1 stretches fixture, it is characterised in that pushing against plate described in: is semicircular arc, when two panels left half is involutory, pushes against plate the most involutory rounded.
Corrugated expansion joint the most according to claim 1 stretches fixture, it is characterised in that: described two panels left half, two panels right half use threaded.
Corrugated expansion joint the most according to claim 1 stretches fixture, it is characterised in that: described pull bar is threadeded with left anchor ear and right anchor ear, and limited block is socketed on pull bar, spacing by fastening bolt, and with guide plate clamping, guide plate is connected with wire rod thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380496.4A CN104959752B (en) | 2015-07-02 | 2015-07-02 | Corrugated expansion joint stretches fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380496.4A CN104959752B (en) | 2015-07-02 | 2015-07-02 | Corrugated expansion joint stretches fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104959752A CN104959752A (en) | 2015-10-07 |
| CN104959752B true CN104959752B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510380496.4A Active CN104959752B (en) | 2015-07-02 | 2015-07-02 | Corrugated expansion joint stretches fixture |
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| CN (1) | CN104959752B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6570964B2 (en) * | 2015-10-23 | 2019-09-04 | 株式会社ディスコ | Cylindrical bellows cover |
| CN108857250B (en) * | 2018-06-28 | 2020-12-22 | 芜湖泰和管业股份有限公司 | Welding equipment for compensator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004278757A (en) * | 2003-03-18 | 2004-10-07 | Calsonic Kansei Corp | Three-dimensional spherical joint |
| JP3992657B2 (en) * | 2003-07-07 | 2007-10-17 | 株式会社Ｔｏｚｅｎ | Pipe fitting |
| CN200960591Y (en) * | 2006-10-21 | 2007-10-17 | 江苏神通阀门有限公司 | Welding fixture |
| CN201529880U (en) * | 2009-10-27 | 2010-07-21 | 北京广厦环能科技有限公司 | Compression device of corrugated pipe head |
| CN102278561B (en) * | 2011-06-29 | 2012-12-26 | 北京宇航系统工程研究所 | Large-caliber long-span compensator for conveying pipe |
| CN202985001U (en) * | 2012-12-13 | 2013-06-12 | 上海航天精密机械研究所 | Positioning device for circular seam welding of corrugated tube compensator |
| CN203566163U (en) * | 2013-12-05 | 2014-04-30 | 国家电网公司 | Clamp for welding pipe bus |
| CN204800177U (en) * | 2015-07-02 | 2015-11-25 | 中国航天科技集团公司长征机械厂 | Corrugated expansion joint telescopic clamp utensil |
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2015
- 2015-07-02 CN CN201510380496.4A patent/CN104959752B/en active Active
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| CN104959752A (en) | 2015-10-07 |
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Address after: 610199 Sichuan Chengdu economic and Technological Development Zone (Longquanyi District) 189 Patentee after: Sichuan spaceflight Long March Equipment Manufacturing Co., Ltd. Address before: 610199 No. 189, road, Longquan Town, Longquanyi District, Sichuan. Patentee before: Changzheng Machinery Factory, China Astronautics Science and Technology Group Co |
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