CN208123203U - A kind of crane mast section stub coupling arrangement - Google Patents
A kind of crane mast section stub coupling arrangement Download PDFInfo
- Publication number
- CN208123203U CN208123203U CN201820666073.8U CN201820666073U CN208123203U CN 208123203 U CN208123203 U CN 208123203U CN 201820666073 U CN201820666073 U CN 201820666073U CN 208123203 U CN208123203 U CN 208123203U
- Authority
- CN
- China
- Prior art keywords
- tapered sleeve
- taper pin
- screw thread
- external screw
- pin
- 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
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Abstract
The utility model provides a kind of crane mast section stub coupling arrangement, it is related to crane processing and manufacturing technology, it includes taper pin and the tapered sleeve that is set in outside taper pin, the bigger diameter end of taper pin is provided with along axial threaded hole, the miner diameter end of taper pin is provided with external screw thread linkage section, and the outer diameter of taper pin is corresponding and the outer diameter of tapered sleeve and the pin hole of standard knot are corresponding for the internal diameter of tapered sleeve, perforative regulating tank is provided on the side wall of tapered sleeve, seat is pre-tightened to pass through external screw thread linkage section and be located at the end of tapered sleeve, gasket, high-strength nut and locking nut are successively threadedly connected on external screw thread linkage section, it is tightly attached to the end face for pre-tightening seat in one end face of gasket.It is big to solve the problems, such as that the peace of large-scale tower lifting standard knot stub in the prior art tears difficulty open.
Description
Technical field
The utility model relates to crane processing and manufacturing technologies, join more particularly to a kind of crane mast section stub
Connection device.
Background technique
Large-scale derrick crane mainly assumes responsibility for the vertically and horizontally conveying of construction material in building construction process, due to
Its working space is big, traffic coverage is wide, it has also become the indispensable transporting equipment in modern architecture construction.Tower crane is mainly by machine driving
Partially, several parts such as hydraulic jacking system, electric control system, safety guard and metal structure are constituted.Metal structure
Part includes base section, tower-body standard section, climbing support, slewing tower, crane arm, tower top, drivers' cab etc., wherein tower-body standard section
Quantity is most, required precision is high, production large labor intensity, becomes a key factor in tower crane production process.
In current domestic existing large-scale derrick crane, standard knot stub all uses solid pin substantially.Such pin
Axis, which can be very good to meet tower crane, normally to be used, but the disassembly of the pin shaft will be very difficult after long-time use, especially
The large-scale tower crane connected using tenon, tower machine upper weight weight, tenon and pin shaft contact area are big.Pin shaft often occur can not tear open
It removes, it has to carry out isolating dismounting using disruptive method, increase the workload for pacifying the personnel that tear open and peace splits into this.Therefore how
The peace for reducing large-scale tower lifting standard knot stub tears difficulty open as one of problem more and more important in tower crane design process, leads to
Analysis, the processing for dismounting difficult phenomenon to standard knot main pin are crossed, a kind of novel tower crane crane mast section main pin is designed, with
The phenomenon of standard knot pin assembling/disassembling difficulty is solved, so that it is more convenient to tear the peace of tower crane open, improves operating efficiency.
Utility model content
For the above problem in the prior art, the utility model provides a kind of crane mast section stub connection dress
It sets, it is big to solve the problems, such as that the peace of large-scale tower lifting standard knot stub in the prior art tears difficulty open.
In order to achieve the above object of the invention, the technical solution adopted in the utility model is as follows：
There is provided a kind of crane mast section stub coupling arrangement comprising taper pin and the tapered sleeve being set in outside taper pin, taper pin
Bigger diameter end be provided with along axial threaded hole, the miner diameter end of taper pin is provided with external screw thread linkage section, the internal diameter and taper pin of tapered sleeve
Outer diameter it is corresponding and the outer diameter of tapered sleeve and the pin hole of standard knot are corresponding, perforative regulating tank is provided on the side wall of tapered sleeve, in advance
Tight seat passes through external screw thread linkage section and is located at the end of tapered sleeve, and gasket, high-strength nut and locking nut are successively threadedly connected to outer
In threaded connection section, the end face for pre-tightening seat is tightly attached in an end face of gasket.
Further, the surface of taper pin is provided with chrome layer, the hardness on taper pin surface is improved, thus when can effectively avoid long
Between using rear taper pin surface bond and cause to be difficult to the phenomenon that dismantling generation.
Further, the inner hole of tapered sleeve is extended in taper pin major diameter end face.It, can not be certainly if encountering taper pin when removing standard knot
When oneself exits, the threaded hole for being bolted taper pin bigger diameter end can be used to carry out drawing, so the end face of taper pin is designed higher than
The end face of tapered sleeve facilitates this operation to go on smoothly.
The beneficial effects of the utility model are：The present apparatus be detachable structure, using the present apparatus connect standard knot,
In disassembly, it only need to unscrew high-strength nut using spanner and locking nut removes pin shaft, not only greatly reduce peace and tear people open
Risk of the member in senior middle school's operation, and can greatly mitigate the operation intensity of operating personnel, while also improving standard
The reuse ratio of pin shaft is saved, tears open and brings great convenience for the peace of tower crane.
The regulating tank being arranged on tapered sleeve makes the outer diameter of tapered sleeve be adjustable, so that compensation standard section is because manufacturing the mistake generated
Difference, to substantially reduce the difficulty and working strength when standard knot installation.Pass through high-strength nut, locking nut and the connection for pre-tightening seat
Cooperation with efficiently avoid pin shaft tower crane run when there is the phenomenon that play, greatly improve the safety of pin shaft.
Detailed description of the invention
Fig. 1 is the axial sectional view of crane mast section stub coupling arrangement.
Fig. 2 is the left view of Fig. 1.
Fig. 3 crane mast section stub coupling arrangement uses schematic diagram.
Wherein, 1, taper pin；11, threaded hole；12, external screw thread linkage section；2, tapered sleeve；21, regulating tank；3, seat is pre-tightened；4, it pads
Piece；5, high-strength nut；6, locking nut；7, standard knot.
Specific embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all utilize the innovation and creation of the utility model design in the column of protection.
As shown in FIG. 1 to 3, which includes taper pin 1 and the cone that is set in outside taper pin 1
Set 2, taper pin 1 and tapered sleeve 2 are both needed to be heat-treated, and promote itself intensity and hardness, and the surface of taper pin 1 also carries out
Chromium plating process, chrome layer have very high hardness, and according to plating solution composition and process conditions difference, hardness can be in very wide range
Variation, chrome layer have preferable heat resistance in 400~1200HV, heat at 500 DEG C or less, and glossiness, hardness are without obvious
Variation, so can effectively avoid the present apparatus for a long time using bonding occurs in rear surface and is difficult to dismantle in taper pin chrome-faced
Phenomenon.
The end face center of 1 bigger diameter end of taper pin is provided with along axial threaded hole 11, and the depth of thread is without too deeply, can guarantee stubborn
Taper pin can be extracted after tight bolt.The miner diameter end of taper pin 1 is provided with external screw thread linkage section 12, for connecting high-strength nut
5 and locking nut 6.External screw thread on external screw thread linkage section 12 is regular screw threads, and the outer diameter of the screw thread is the minimum outer diameter of tapered sleeve.
The internal diameter of tapered sleeve 2 is corresponding with the outer diameter of taper pin 1, i.e., tapered also with the outer diameter of tapered sleeve 1, the outer surface of tapered sleeve 2
For common cylinder face, size is corresponding with the pin hole of standard knot 7.1 major diameter end face of taper pin is higher than the end face of corresponding tapered sleeve 2.Cone
It is provided with regulating tank 21 on the side wall of set 2, which is cone axially through the internal-and external diameter of tapered sleeve 2, the i.e. regulating tank 21
Cover a notch isometric with tapered sleeve on 2 side walls, allow tapered sleeve 2 in use its outer diameter according to the axial compressive force of application
And change in a certain range.
Standard knot can lead to not eliminable error because of a variety of causes in making, and this error is in standard knot
It will lead to after installation and occur certain gap between standard knot, even will appear tower body verticality exceeded problem when serious.And
Transformable tapered sleeve outer diameter can largely compensation standard section foozle, when greatly reducing standard knot installation
Task difficulty and working strength.
Seat 3 is pre-tightened to pass through external screw thread linkage section 12 and be located at the end of tapered sleeve 2, gasket 4, high-strength nut 5 and locking nut 6
It is successively threadedly connected on external screw thread linkage section 12, the end face for pre-tightening seat 3 is tightly attached in an end face of gasket 4.It is high-strength by screwing
6 pairs of preload seats 3 of nut 5 and locking nut apply axial compressive force, pre-tighten seat 3 for axial compressive force and are conducted to tapered sleeve 2, make tapered sleeve 2
Outer diameter slightly becomes larger, so that the pin hole inner wall for squeezing standard knot 7 achievees the purpose that locking.
When standard knot 7 need to be removed, locking nut and high-strength bolt, the axial compressive force that tapered sleeve 2 is subject to first are unclamped with spanner
It disappears, taper pin 1 can be squeezed in outer diameter recovery process, and the power of tapered sleeve one horizontally outward can be given due to taper, this
When only need to gently tap the miner diameter end of taper pin 1, taper pin 1 can be exited easily.Even if encountering accident, taper pin 1 can not be exited, can also
Drawing is carried out using the threaded hole 11 for being bolted 1 bigger diameter end of taper pin to exit.
Claims (3)
1. a kind of crane mast section stub coupling arrangement, which is characterized in that including taper pin (1) and be set in taper pin (1) outside
Tapered sleeve (2), the bigger diameter end of the taper pin (1) are provided with along axial threaded hole (11), and the miner diameter end of the taper pin (1) is provided with
The internal diameter of external screw thread linkage section (12), the tapered sleeve (2) is corresponding with the outer diameter of the taper pin (1) and the outer diameter and mark of tapered sleeve (2)
The pin hole of quasi- section (7) is corresponding, is provided with perforative regulating tank (21) on the side wall of the tapered sleeve (2), pre-tightens seat (3) and passes through institute
The end that external screw thread linkage section (12) are located at the tapered sleeve (2) is stated, gasket (4), high-strength nut (5) and locking nut (6) are successively
Using being threadedly connected on the external screw thread linkage section (12), preload seat (3) is tightly attached in an end face of the gasket (4)
End face.
2. crane mast section stub coupling arrangement according to claim 1, which is characterized in that the table of the taper pin (1)
Face is provided with chrome layer.
3. crane mast section stub coupling arrangement according to claim 1, which is characterized in that taper pin (1) major diameter
Extend the inner hole of tapered sleeve (2) in end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820666073.8U CN208123203U (en) | 2018-05-04 | 2018-05-04 | A kind of crane mast section stub coupling arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820666073.8U CN208123203U (en) | 2018-05-04 | 2018-05-04 | A kind of crane mast section stub coupling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208123203U true CN208123203U (en) | 2018-11-20 |
Family
ID=64184591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820666073.8U Expired - Fee Related CN208123203U (en) | 2018-05-04 | 2018-05-04 | A kind of crane mast section stub coupling arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208123203U (en) |
-
2018
- 2018-05-04 CN CN201820666073.8U patent/CN208123203U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20210504 |