CN105371034A - Novel expansion pull rod - Google Patents
Novel expansion pull rod Download PDFInfo
- Publication number
- CN105371034A CN105371034A CN201510946151.0A CN201510946151A CN105371034A CN 105371034 A CN105371034 A CN 105371034A CN 201510946151 A CN201510946151 A CN 201510946151A CN 105371034 A CN105371034 A CN 105371034A
- Authority
- CN
- China
- Prior art keywords
- pull bar
- sleeve
- pull rod
- bar core
- drag link
- 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.)
- Granted
Links
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1017—Joints with sleeve or socket
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a novel expansion pull rod which comprises a pull rod core, a pull rod sleeve and a transition sleeve. The axis of the pull rod sleeve is provided with a central axis hole used for containing the pull rod core. The central axis hole is divided by a partition layer into a matching cavity and a guide cavity. The pull rod core is installed in the central axis hole. One end of the pull rod core is sleeved with the transition sleeve. The transition sleeve is installed in the matching cavity in an interference fit mode. Damping rubber is arranged in the matching cavity and located at the bottom of the matching cavity. The damping rubber is compressed in the matching cavity through the transition sleeve. The end, outside the transition sleeve, of the pull rod core is provided with a limiting nut. The bottom end of the pull rod sleeve is provided with a positioning hole for butt connection. The upper end of the pull rod sleeve is provided with a butt connection groove used for clamping. The pull rod sleeve is sleeved with a fixing frame which is clamped to the butt connection groove. The fixing frame is provided with a bolt used for fixing.
Description
Technical field
The present invention relates to hardware fitting field, particularly relate to a kind of expansible pull bar.
Background technique
Expansion joint is the additional stress compensated because temperature difference or mechanical vibration cause, and is arranged on a kind of flexible structure on container shell or pipeline.Due to it as a kind of can the elastic compensation element of free-extension, the advantages such as reliable operation, functional, compact structure, have been widely used in the departments such as chemical industry, metallurgy, nuclear energy.But in cement industry, the expansion joint especially cement kiln preheaters used, needs to have the feature such as the little and axial expansion amount of high temperature resistant degree, axial installation dimension is large.And expansion joint general is in the market substantially all the Ω shape metal bellows structure of little wave height, the little pitch of waves, but the preparation process of such bellows limits the wall thickness of bellows, easy generation swelling red sandstone unstability, and make such expansion joint fragile and not easy-maintaining after damaging.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of expansible pull bar, and it is reasonable in design, and structure is simple, solves expansion pull bar discontinuity in the process of balanced stress, and the problem of radial component unstability.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is to provide a kind of expansible pull bar, comprises pull bar core, drag link sleeve and transition sleeve; The axle center of described drag link sleeve is provided with the central shaft hole for installing described pull bar core; Described central shaft hole is cut off layer and is divided into mating cavity and directed cavity; Described pull bar core is installed in described central shaft hole; One end of described pull bar core is set with described transition sleeve; Described transition sleeve is installed in described mating cavity in an interference fit; Also yielding rubber is provided with in described mating cavity; Described yielding rubber is positioned at the bottom of described mating cavity; Described yielding rubber is pressed in described mating cavity by described transition sleeve; The end of the pull bar core outside described transition sleeve is provided with stop nut; The bottom of described drag link sleeve is also provided with the positioning hole for docking; The upper end of described drag link sleeve is also provided with the docking groove for clamping; Described drag link sleeve is also set with fixing frame; Described fixing frame is connected in described docking groove; Described fixing frame is also provided with for fixing bolt.
Preferably, the bottom of described pull bar core is also provided with the screw mouth for docking.
Preferably, described bolt is at least provided with four; The axis of described bolt is in the axial keeping parallelism of described pull bar core.
The invention has the beneficial effects as follows: a kind of expansible pull bar is provided, its structure is simple, reasonable in design, realizes effective annexation by the pull bar core of docking, between pull bar core and drag link sleeve, carry out balanced stress by the linkage structure of transition simultaneously, reach work object.Also reduced the axial thrust load of pull bar core by yielding rubber, guarantee stability; It realizes the fixing of its outside by the docking structure of outer installment, prevents from being shifted during work.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of expansible pull bar of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, pull bar core; 2, drag link sleeve; 3, transition sleeve; 4, insulating course; 5, directed cavity; 6, stop nut; 7, docking groove; 8, positioning hole; 9, yielding rubber; 10, fixing frame; 11, bolt.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to accompanying drawing 1, the embodiment of the present invention comprises:
A kind of expansible pull bar, comprises pull bar core 1, drag link sleeve 2 and transition sleeve 3; The axle center of described drag link sleeve is provided with the central shaft hole for installing described pull bar core 1; Described central shaft hole is cut off layer 4 and is divided into mating cavity and directed cavity 5; Described pull bar core is installed in described central shaft hole; One end of described pull bar core 1 is set with described transition sleeve 3; Described transition sleeve 3 is installed in described mating cavity in an interference fit; Yielding rubber 9 is also provided with in described mating cavity; Described yielding rubber 9 is positioned at the bottom of described mating cavity; Described yielding rubber 9 is pressed in described mating cavity by described transition sleeve 3; The end of the pull bar core 1 outside described transition sleeve 3 is provided with stop nut 6; The bottom of described drag link sleeve 2 is also provided with the positioning hole 8 for docking.The upper end of described drag link sleeve is also provided with the docking groove 7 for clamping; Described drag link sleeve 2 is also set with fixing frame 10; Described fixing frame 10 is connected in described docking groove 7; Described fixing frame 10 is also provided with for fixing bolt 11, the bottom of described pull bar core 1 is also provided with the screw mouth for docking.Described bolt 11 is at least provided with four; The axis of described bolt 11 is in the axial keeping parallelism of described pull bar core 1.During work, dock corresponding linkage structure by pull bar core 1, and installed by spacer shell 3 between pull bar core 1 and drag link sleeve 2, the problem that the difference because of force bearing point is too concentrated the stress that pull bar core and drag link sleeve cause can be avoided.This stable type expansion pull bar, its structure is simple, reasonable in design, realizes effective annexation by the pull bar core of docking, carrys out balanced stress simultaneously, reach work object between pull bar core and drag link sleeve by the linkage structure of transition.Also reduced the axial thrust load of pull bar core by yielding rubber, guarantee stability; It realizes the fixing of its outside by the docking structure of outer installment, prevents from being shifted during work.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. an expansible pull bar, is characterized in that: comprise pull bar core, drag link sleeve and transition sleeve; The axle center of described drag link sleeve is provided with the central shaft hole for installing described pull bar core; Described central shaft hole is cut off layer and is divided into mating cavity and directed cavity; Described pull bar core is installed in described central shaft hole; One end of described pull bar core is set with described transition sleeve; Described transition sleeve is installed in described mating cavity in an interference fit; Also yielding rubber is provided with in described mating cavity; Described yielding rubber is positioned at the bottom of described mating cavity; Described yielding rubber is pressed in described mating cavity by described transition sleeve; The end of the pull bar core outside described transition sleeve is provided with stop nut; The bottom of described drag link sleeve is also provided with the positioning hole for docking; The upper end of described drag link sleeve is also provided with the docking groove for clamping; Described drag link sleeve is also set with fixing frame; Described fixing frame is connected in described docking groove; Described fixing frame is also provided with for fixing bolt.
2. a kind of expansible pull bar according to claim 1, is characterized in that: the bottom of described pull bar core is also provided with the screw mouth for docking.
3. a kind of expansible pull bar according to claim 1, is characterized in that: described bolt is at least provided with four; The axis of described bolt is in the axial keeping parallelism of described pull bar core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946151.0A CN105371034B (en) | 2015-12-16 | 2015-12-16 | One kind expansion pull bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946151.0A CN105371034B (en) | 2015-12-16 | 2015-12-16 | One kind expansion pull bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105371034A true CN105371034A (en) | 2016-03-02 |
| CN105371034B CN105371034B (en) | 2017-09-12 |
Family
ID=55373483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510946151.0A Active CN105371034B (en) | 2015-12-16 | 2015-12-16 | One kind expansion pull bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105371034B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996652A (en) * | 1976-01-14 | 1976-12-14 | Swinford Eugene B | Pipe positioning tool |
| EP0252369A2 (en) * | 1986-07-05 | 1988-01-13 | Witzenmann GmbH Metallschlauch-Fabrik Pforzheim | Laterally and/or angularly compensating element made of metal for pipe systems under pressure |
| CN2235545Y (en) * | 1995-10-12 | 1996-09-18 | 孙建新 | Pressure equilibrium and sleeve type compensator |
| CN201090867Y (en) * | 2007-09-18 | 2008-07-23 | 刘运章 | Spacing tension rod of anti-drag and pull apparatus for pipe compensator |
| CN101793339A (en) * | 2010-03-24 | 2010-08-04 | 辽宁新兴佳波纹管制造有限公司 | Corrugated pipe compensator of disc spring sleeve |
-
2015
- 2015-12-16 CN CN201510946151.0A patent/CN105371034B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996652A (en) * | 1976-01-14 | 1976-12-14 | Swinford Eugene B | Pipe positioning tool |
| EP0252369A2 (en) * | 1986-07-05 | 1988-01-13 | Witzenmann GmbH Metallschlauch-Fabrik Pforzheim | Laterally and/or angularly compensating element made of metal for pipe systems under pressure |
| CN2235545Y (en) * | 1995-10-12 | 1996-09-18 | 孙建新 | Pressure equilibrium and sleeve type compensator |
| CN201090867Y (en) * | 2007-09-18 | 2008-07-23 | 刘运章 | Spacing tension rod of anti-drag and pull apparatus for pipe compensator |
| CN101793339A (en) * | 2010-03-24 | 2010-08-04 | 辽宁新兴佳波纹管制造有限公司 | Corrugated pipe compensator of disc spring sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105371034B (en) | 2017-09-12 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170724 Address after: 215000 Jiangsu city of Suzhou province Wuzhong District Su Li Road No. 63 Applicant after: SUZHOU ZHONGTUO PATENT OPERATIONS MANAGEMENT CO., LTD. Address before: 215000 Jiangsu city of Suzhou province Wuzhong District Guangfu town Chu Road No. 10 field Applicant before: SUZHOU LANGRUIJIE AUTOMATION TECHNOLOGY CO., LTD. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |