CN206328075U - A kind of derrick crane folding maintenance cantilever crane attachment structure - Google Patents
A kind of derrick crane folding maintenance cantilever crane attachment structure Download PDFInfo
- Publication number
- CN206328075U CN206328075U CN201621491624.9U CN201621491624U CN206328075U CN 206328075 U CN206328075 U CN 206328075U CN 201621491624 U CN201621491624 U CN 201621491624U CN 206328075 U CN206328075 U CN 206328075U
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- CN
- China
- Prior art keywords
- arm
- bracket
- cantilever crane
- attachment structure
- crane
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- 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.)
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Abstract
The utility model discloses a kind of derrick crane folding maintenance cantilever crane attachment structure, including base, bracket, strut, arm and dolly, and bracket is arranged on base, and strut is assemblied on base；Dolly is arranged on arm, is connected between arm and bracket by least two bearing pins, and when only installing a bearing pin, arm rotatable folding is placed longitudinally in bracket side；When more than two bearing pins are installed, arm horizontal spreading.Connected in the utility model between arm and bracket using bearing pin, it is that arm can be secured transverse on bracket to install multiple bearing pins；When cantilever crane without using when, only fill a bearing pin, arm is leaned against by fulcrum of this bearing pin to be realized on bracket and fold.Locus of the arm on counter-jib can so be greatly reduced.Increase the activity space of people, and improve the performance of product.
Description
Technical field
The utility model is related to a kind of maintenance cantilever crane, and specifically a kind of derrick crane folding maintenance cantilever crane connects
Binding structure, belongs to maintenance cantilever crane technical field.
Background technology
At present, because lifting mechanism of tower crane is sometimes for replacing, so can typically be provided with cantilever on counter-jib
Hang, motor is lifted during lifting mechanism for repairing.Existing cantilever crane attachment structure is generally monoblock type, as shown in figure 1, base 2
Above it is equipped with to be welded with arm 4, arm 4 on rotatable bracket 3, bracket 3 and dolly 5 is housed, equipped with strut 1 for pacifying on base 2
Dress is fixed.Wherein, arm 4 is welded on bracket 3, and there are the following problems in actual use：
1. structure is fixed, arm space-consuming is big.Arm is fixed together with bracket and can not adjusted, arm lateral length compared with
Greatly, so relative space-consuming is larger.
2. transport protection is unfavorable.Because bracket and arm form structure of right angle tyoe fixed protection engaged position in transport
Greatly, it is unfavorable for fixed and protects.
3. cantilever crane frequency of use is low, it all takes larger counter-jib space when working and not working, and people is in balance
Activity space on arm is relatively small.
The content of the invention
The problem of existing for above-mentioned prior art, it is outstanding that the utility model provides a kind of derrick crane folding maintenance
Arm hangs attachment structure, and foldable placement is opened when in use, and the used time, which does not fold, fixes, and can greatly reduce erect-position space, be easy to fortune
Defeated protection.
To achieve these goals, a kind of derrick crane folding maintenance cantilever crane connection that the utility model is used
Structure, including base, bracket, strut, arm and dolly, bracket are arranged on base, and strut is assemblied on base；Dolly is installed
In arm, connected between the arm and bracket by least two bearing pins, when only installing a bearing pin, the rotatable folding of arm
It is folded placed longitudinally in bracket side；When more than two bearing pins are installed, arm horizontal spreading.
Preferably, connected between the arm and bracket by two bearing pins.
Preferably, it is provided with the connecting hole for being provided with and being used cooperatively with pin shaft hole on pin shaft hole, bracket on the arm.
Preferably, the line of the pin shaft hole is in yi word pattern structure.
Compared with prior art, the utility model by by arm and bracket be changed at least two bearing pins connect structure,
Arm rotatable folding when installing a bearing pin, install it is multiple after, arm can horizontal spreading, you can by the installation for changing bearing pin
Quantity realizes the replacing of arm horizontal spreading and rotary folding.Generally speaking, have the following advantages that：
1st, flexible structure, arm according to work and can not work adjustment position, when can effectively reduce cantilever crane and not working
To the space-consuming of counter-jib.
2nd, it is readily transported protection.Cantilever crane is in off position when transport protection, can fold reduction space, more
It is readily transported.
3rd, by improved structure, the activity space of people is increased.It is most because cantilever crane is only used when repairing lifting mechanism
Time is in off position, you can is in folded state with most time, can so greatly improve the activity of people on counter-jib
Space.
4th, improved by structure, improve the practicality of product.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing cantilever crane attachment structure；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is a kind of folded state diagram of the present utility model；
Fig. 4 is another folded state diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 2 to 4, a kind of derrick crane folding maintenance cantilever crane attachment structure, including base 2, support
Frame 3, strut 1, arm 4 and dolly 5, bracket 3 are arranged on base 2, and strut 1 is assemblied on base 2；Dolly 5 is arranged on arm
4, connected between the arm 4 and bracket 3 by least two bearing pins 6, when only installing a bearing pin 6, the rotatable folding of arm 4
It is folded placed longitudinally in the side of bracket 3；When more than two bearing pins 6 are installed, the horizontal spreading of arm 4.
Connected between bracket 3 and arm 4 using bearing pin, as shown in Fig. 2 when cantilever crane works, at least installing two
Individual bearing pin, plays positioning and fixed effect；As shown in Figure 3 and Figure 4, when cantilever crane is idle, bearing pin can only pacify
One is filled, at this moment bearing pin is as pivot point, and arm can be rotated close to bracket and base, reduce the occupancy to space.As for,
The specific installation site of the bearing pin is not required.
Preferably, it can be connected between the arm 4 and bracket 3 by two bearing pins 6.Certainly, also can by three or
More bearing pin connections；The horizontal spreading and rotary folding of arm simply can be just realized using two bearing pins, operation is relatively simple
It is single.
Preferably, it is provided with the arm 4 on pin shaft hole, bracket 3 and is provided with the connecting hole used cooperatively with pin shaft hole, bearing pin
Hole, the quantity difference of connecting hole.
Preferably, the line of the pin shaft hole is in yi word pattern structure.
From said structure, connected in the utility model between arm and bracket using bearing pin, installing multiple bearing pins is
Arm can be secured transverse on bracket；When cantilever crane without using when, only fill a bearing pin, arm is leaned against using this bearing pin as fulcrum
Realize and fold on bracket.Locus of the arm on counter-jib can so be greatly reduced.Increase the activity space of people, and improve
The performance of product.
Claims (4)
1. a kind of derrick crane folding maintenance cantilever crane attachment structure, including base (2), bracket (3), strut (1), hang
Arm (4) and dolly (5), bracket (3) are arranged on base (2), and strut (1) is assemblied on base (2)；Dolly (5) is arranged on and hung
Arm (4), it is characterised in that be connected between the arm (4) and bracket (3) by least two bearing pins (6), when only installation one
During bearing pin (6), arm (4) rotatable folding is placed longitudinally in bracket (3) side；When more than two bearing pins (6) are installed, arm
(4) horizontal spreading.
2. a kind of derrick crane folding maintenance cantilever crane attachment structure according to claim 1, it is characterised in that
It is connected between the arm (4) and bracket (3) by two bearing pins (6).
3. a kind of derrick crane folding maintenance cantilever crane attachment structure according to claim 1 or 2, its feature exists
In being provided with the arm (4) on pin shaft hole, bracket (3) and be provided with the connecting hole used cooperatively with pin shaft hole, pin shaft hole, connection
The quantity in hole is different.
4. a kind of derrick crane folding maintenance cantilever crane attachment structure according to claim 3, it is characterised in that
The line of the pin shaft hole is in yi word pattern structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621491624.9U CN206328075U (en) | 2016-12-30 | 2016-12-30 | A kind of derrick crane folding maintenance cantilever crane attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621491624.9U CN206328075U (en) | 2016-12-30 | 2016-12-30 | A kind of derrick crane folding maintenance cantilever crane attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206328075U true CN206328075U (en) | 2017-07-14 |
Family
ID=59293751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621491624.9U Active CN206328075U (en) | 2016-12-30 | 2016-12-30 | A kind of derrick crane folding maintenance cantilever crane attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206328075U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706470A (en) * | 2018-06-13 | 2018-10-26 | 安徽骏达起重机械有限公司 | Foldable crane |
| CN109809308A (en) * | 2019-03-22 | 2019-05-28 | 蚌埠市神舟机械有限公司 | A kind of movable boom for ship boat loading and unloading |
-
2016
- 2016-12-30 CN CN201621491624.9U patent/CN206328075U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706470A (en) * | 2018-06-13 | 2018-10-26 | 安徽骏达起重机械有限公司 | Foldable crane |
| CN109809308A (en) * | 2019-03-22 | 2019-05-28 | 蚌埠市神舟机械有限公司 | A kind of movable boom for ship boat loading and unloading |
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