CN205346692U - Swing arm tower machine of supporting multiple mounting means becomes width of cloth pulley yoke - Google Patents
Swing arm tower machine of supporting multiple mounting means becomes width of cloth pulley yoke Download PDFInfo
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- CN205346692U CN205346692U CN201620089489.9U CN201620089489U CN205346692U CN 205346692 U CN205346692 U CN 205346692U CN 201620089489 U CN201620089489 U CN 201620089489U CN 205346692 U CN205346692 U CN 205346692U
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- pulley yoke
- otic placode
- multiple mounting
- crane
- luffing pulley
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Abstract
The utility model provides a swing arm tower machine of supporting multiple mounting means becomes width of cloth pulley yoke, includes top of the tower, jib loading boom pull rod and the change width of cloth pulley yoke of being connected with top of the tower and jib loading boom pull rod, sets up the monaural board on becoming width of cloth pulley yoke, its characterized in that: still including setting up the M otic placode group on becoming width of cloth pulley yoke, every otic placode group comprises two otic placodes, M >= 1. The utility model discloses make a change width of cloth pulley yoke have multiple mounting means, can satisfy the installation characteristic that different swing arm tower machines becomes a pulley yoke, have the excellent choice when the installation, increase adaptability.
Description
Technical field
The invention relates to a kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes, belongs to lifting technique field.
Background technology
The luffing pulley yoke of movable arm tower crane realizes the luffing motion of crane arm by passing around variable-amplitude steel wire rope connection tower top and crane arm pull bar.First the basic installation process of luffing pulley yoke for complete to pass around at tower top place by variable-amplitude steel wire rope, then release jib lubbing mechanism reel steel wire ropes to be drawn in some way by luffing pulley yoke to crane arm pull bar place, pulley yoke is coupled with crane arm pull bar, then slowly tighten up with reel steel wire rope gradually by pulley yoke and crane arm pull bar pull-up until crane arm reaches the requirement elevation angle.
In current technology scheme, as it is shown in figure 1, the generally only single group otic placode 5 of luffing pulley yoke 3, the installation of pulley yoke is so made to have limitation.The mounting means of luffing pulley yoke has two kinds
One, directly lift
Otic placode 5 is utilized to winch near tower top 1 and hover with other crane gears luffing pulley yoke 3, after treating variable-amplitude steel wire rope 2 wire rope handling, jib lubbing mechanism slowly puts rope while continuing to luffing pulley yoke winches to crane arm pull bar 4 place above crane arm with crane gear, is coupled with crane arm pull bar by luffing pulley yoke.Connect complete, tighten up variable-amplitude steel wire rope, by crane arm pull bar and crane arm pull-up, complete to install.
Two, traction lifting
Utilize otic placode 5 luffing assembly pulley winches to tower top precalculated position and fixes temporarily, remove installation crane gear after fixing, wear variable-amplitude steel wire rope.After variable amplitude rope installs, again through otic placode 5 hoist rope or other crane gears, luffing assembly pulley is winched to crane arm pull bar 4 place, then complete subsequent installation.
Single group otic placode major defect is that mounting means is dumb often to be made installation effectiveness relatively low, inconvenient or has potential safety hazard under certain conditions:
1) when directly lifting, owing to the luffing pulley yoke set-up time is longer, during whole installation, the crane gear for lifting tower crane necessarily participates in, and after luffing pulley yoke installs, could proceed miscellaneous part with this crane gear and install.If tower crane installation scene only has a crane, then largely have impact on installation effectiveness.
2) when using hoist rope traction, generally requiring and first draw hoist rope to tower top place, but this process is cumbersome, general erector relatively conflicts.
3) when using other crane gears to be winched near crane arm pull bar by the pulley yoke putting on variable amplitude rope, owing to crane is not suitable for oblique pull lift heavy, therefore variable-amplitude steel wire rope can not be tightened, cause needing the variable amplitude rope (because variable-amplitude steel wire rope mostly is 6,8,10 even 12 multiplying powers, the enlarge-effect of variable amplitude rope redundancy is more apparent) of more redundant length.Owing to amplitude-changing drum rope capacity is limited, therefore inevitably assembly pulley is carried out oblique pull so that subsequent installation, during oblique pull, often bring certain potential safety hazard by force.
4) single otic placode is relatively strict to center of gravity status requirement, and in passing around variable-amplitude steel wire rope or traction process, as center of gravity changes or during unbalance stress, luffing pulley yoke is easy disequilibrium in hoisting process.
Summary of the invention
For the deficiencies in the prior art, the purpose of the invention is to provide a kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes, luffing pulley yoke is made to have multiple mounting modes, the characteristic of different movable arm tower crane luffing pulley yokes can be met, there are multiple choices when mounted, increase adaptability.
For achieving the above object, the invention is realized by techniques below means:
A kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes, including tower top, crane arm pull bar and the luffing pulley yoke being connected with tower top and crane arm pull bar, the monaural plate that is arranged on luffing pulley yoke, it is characterized in that: also include M the otic placode group being arranged on luffing pulley yoke, each otic placode group is made up of two otic placodes, described M >=1.
Further:
Described M otic placode group is with monaural plate at grade.
Two otic placodes of described otic placode group are arranged symmetrically with around luffing pulley yoke center of gravity.
The number of described otic placode group is 1.
Described otic placode group and monaural plate are that equilateral triangle is arranged.
The invention provides the benefit that: 1) efficiency is high when variable amplitude rope passes around, and the crane installing tower crane may be used for the installation of miscellaneous part.2) simple operation, directly pulley yoke can be winched to and take again near crane arm pull bar directly to install or use steel wire rope, chain block to complete last traction work, owing to using rope traction more convenient at crane arm place, can generally be accepted during in-site installation.
Accompanying drawing explanation
Fig. 1 is tower top, crane arm pull bar, monaural plate, crane arm bar jointing structure schematic diagram, and Fig. 2 is this utility model structural representation, and wherein, a is front view, and b is top view.
Detailed description of the invention
Below in conjunction with Figure of description, the invention is further described.
As shown in drawings, a kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes, including tower top 1, crane arm pull bar 4 and the luffing pulley yoke 3 being connected with tower top 1 and crane arm pull bar 4, the monaural plate 5 that is arranged on luffing pulley yoke 3, it is characterized in that: also include M the otic placode group 6 being arranged on luffing pulley yoke 3, each otic placode group 6 is made up of two otic placodes, described M >=1.
Further:
Described M otic placode group 6 is with monaural plate 5 at grade.
Two otic placodes of described otic placode group 6 are arranged symmetrically with around luffing pulley yoke 3 center of gravity.
The number of described otic placode group 6 is 1.
Described otic placode group 6 is arranged in equilateral triangle with monaural plate 5.
In the present embodiment, luffing pulley yoke arranges an otic placode group 6 being made up of two otic placodes, a monaural plate 5.Wherein otic placode group 6 fixes wire rope handling or suspention for tower top 1, and monaural plate 5 is for hoist rope traction.
When luffing pulley yoke 3 is installed, operation can be compared flexibly, it is possible to takes into account efficient and convenient.Can sling with other crane gears and be positioned over above tower top 1 by otic placode group 6 and carry out passing around variable-amplitude steel wire rope 2, after wire rope handling, winch to crane arm pull bar 4 place and complete subsequent installation during installation.As luffing pulley yoke 3 arrive need near crane arm pull bar 4 to tighten variable-amplitude steel wire rope 2 luffing pulley yoke 3 just can be made to have contacted with crane arm pull bar 4 time, it is possible to the hoist rope or the chain block that directly utilize crane arm place complete to tighten process, complete installation.
The ultimate principle of the invention, principal character and advantage have more than been shown and described.Skilled person will appreciate that of the industry; the design is not restricted to the described embodiments; the principle that the design is simply described described in above-described embodiment and description; under the premise without departing from the design spirit and scope; the invention also has various changes and modifications, and these changes and improvements both fall within the scope of claimed the design.The invention claims scope and is defined by appending claims and equivalent thereof.
Claims (5)
1. the movable arm tower crane luffing pulley yoke supporting multiple mounting modes, including tower top, crane arm pull bar and the luffing pulley yoke being connected with tower top and crane arm pull bar, the monaural plate that is arranged on luffing pulley yoke, it is characterized in that: also include M the otic placode group being arranged on luffing pulley yoke, each otic placode group is made up of two otic placodes, described M >=1.
2. a kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes as claimed in claim 1, it is characterised in that: described M otic placode group is with monaural plate at grade.
3. a kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes as claimed in claim 1, it is characterised in that: two otic placodes of described otic placode group are arranged symmetrically with around luffing pulley yoke center of gravity.
4. a kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes as claimed in claim 1, it is characterised in that: the number of described otic placode group is 1.
5. a kind of movable arm tower crane luffing pulley yoke supporting multiple mounting modes as claimed in claim 4, it is characterised in that: described otic placode group and monaural plate are that equilateral triangle is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620089489.9U CN205346692U (en) | 2016-01-29 | 2016-01-29 | Swing arm tower machine of supporting multiple mounting means becomes width of cloth pulley yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620089489.9U CN205346692U (en) | 2016-01-29 | 2016-01-29 | Swing arm tower machine of supporting multiple mounting means becomes width of cloth pulley yoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205346692U true CN205346692U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620089489.9U Active CN205346692U (en) | 2016-01-29 | 2016-01-29 | Swing arm tower machine of supporting multiple mounting means becomes width of cloth pulley yoke |
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| CN (1) | CN205346692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284284A (en) * | 2016-10-31 | 2017-01-04 | 北京中车重工机械有限公司 | Dynamic compaction machinery and luffing jib thereof |
-
2016
- 2016-01-29 CN CN201620089489.9U patent/CN205346692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284284A (en) * | 2016-10-31 | 2017-01-04 | 北京中车重工机械有限公司 | Dynamic compaction machinery and luffing jib thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |