CN105423045A - Efficient expansion pull rod - Google Patents
Efficient expansion pull rod Download PDFInfo
- Publication number
- CN105423045A CN105423045A CN201510945534.6A CN201510945534A CN105423045A CN 105423045 A CN105423045 A CN 105423045A CN 201510945534 A CN201510945534 A CN 201510945534A CN 105423045 A CN105423045 A CN 105423045A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pull bar
- pull rod
- bar core
- core
- 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.)
- Pending
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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/028—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with the expansion or contraction of each corrugation being limited
Abstract
The invention discloses an efficient expansion pull rod. The efficient expansion pull rod comprises a pull rod core, a pull rod sleeve and a transition sleeve. A center shaft hole for installing the pull rod core is formed in the axis of the pull rod sleeve and is divided into a matching cavity and a guiding cavity by a division layer; the pull rod core is installed in the center shaft 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; shock-absorbing rubber is arranged in the matching cavity and is located at the bottom of the matching cavity; the transition sleeve presses the shock-absorbing rubber in the matching cavity; a stop nut is arranged at the end of the part, outside the transition sleeve, of the pull rod core; locating holes for butt joint are formed in the bottom end of the pull rod sleeve; butt joint grooves for clamping connection are formed in the upper end of the pull rod sleeve; fixing frames are installed on the pull rod sleeve in a sleeving mode, are connected into the butt joint grooves in a clamped mode and are provided with bolts for fixation; a sleeve is arranged at the upper end of the pull rod core and is fixed to the pull rod core through a plug pin rod.
Description
Technical field
The present invention relates to hardware fitting field, particularly relate to a kind of efficient expansion 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 efficient expansion 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 efficient expansion 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; Also sleeve is provided with in the upper end of described pull bar core; Described sleeve is fixed by bolt rod and described pull bar core.
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 efficient expansion 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 efficient expansion 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; 12, sleeve; 13, bolt rod.
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 efficient expansion 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.Sleeve 12 is also provided with in the upper end of described pull bar core 1; Described sleeve 12 is fixed by bolt rod 13 and described pull bar core 1.Carry out external stability by the sleeve of end, this movable connection method, makes convenient disassembly.The upper end of described drag link sleeve 2 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 efficient expansion 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; Also sleeve is provided with in the upper end of described pull bar core; Described sleeve is fixed by bolt rod and described pull bar core.
2. a kind of efficient expansion 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 efficient expansion 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 |
|---|---|---|---|
| CN201510945534.6A CN105423045A (en) | 2015-12-16 | 2015-12-16 | Efficient expansion pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945534.6A CN105423045A (en) | 2015-12-16 | 2015-12-16 | Efficient expansion pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105423045A true CN105423045A (en) | 2016-03-23 |
Family
ID=55501465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510945534.6A Pending CN105423045A (en) | 2015-12-16 | 2015-12-16 | Efficient expansion pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105423045A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996652A (en) * | 1976-01-14 | 1976-12-14 | Swinford Eugene B | Pipe positioning tool |
| US4192143A (en) * | 1976-12-30 | 1980-03-11 | Sulzer Brothers Limited | Exhaust pipe |
| CN2235545Y (en) * | 1995-10-12 | 1996-09-18 | 孙建新 | Pressure equilibrium and sleeve type compensator |
-
2015
- 2015-12-16 CN CN201510945534.6A patent/CN105423045A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996652A (en) * | 1976-01-14 | 1976-12-14 | Swinford Eugene B | Pipe positioning tool |
| US4192143A (en) * | 1976-12-30 | 1980-03-11 | Sulzer Brothers Limited | Exhaust pipe |
| CN2235545Y (en) * | 1995-10-12 | 1996-09-18 | 孙建新 | Pressure equilibrium and sleeve type compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160323 |
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| RJ01 | Rejection of invention patent application after publication |