CN204281126U - Crane arm pull bar and there is the tower crane of this pull bar - Google Patents
Crane arm pull bar and there is the tower crane of this pull bar Download PDFInfo
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- CN204281126U CN204281126U CN201420680715.1U CN201420680715U CN204281126U CN 204281126 U CN204281126 U CN 204281126U CN 201420680715 U CN201420680715 U CN 201420680715U CN 204281126 U CN204281126 U CN 204281126U
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- pull bar
- connecting bore
- crane
- crane arm
- tower crane
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Abstract
A kind of crane arm pull bar and there is the tower crane of this pull bar, described pull bar comprises the some poles connected successively, each pole two ends are provided with the multiple connecting bore of continuous print along its length, and adjacent two poles are by connecting bore and the hinge through this connecting bore; Described tower crane comprises crane arm pull bar as above.Hinge-point change in location during by connecting, reach the adjustment to pull bar effective length, thus realize the maximum functional amplitude of the change of pull bar overall length, change crane arm, eliminate tower crane in the past each luffing all need the complex process of again joining pull bar, removing and installing, not only increase work efficiency, reduce the input in manpower and materials simultaneously.
Description
Technical field
The utility model relates to a kind of crane arm pull bar and has the tower crane of this structure, is mainly used in elevator machinery technical field.
Background technology
Tower crane is called for short tower machine, also known as tower crane, originates from West Europe.Swing arm is contained in the rotary crane on towering tower body top.Working space is large, is mainly used in the installation of vertical and horizontal feed and the building element of material in housing construction.
Current tower crane often needs to change maximum functional amplitude and different boom length according to its operating mode, the increase and decrease normally saved by arm changes crane arm amplitude peak, this relates to the change of the length of connection pull bar, traditional tower crane pull bar length variations is dismantled by pull bar and increases new pull bar to realize.General installation side is according to producer's requirement, and the pull bar of different boom length of arranging in pairs or groups out coordinates, and each boom length that changes all needs to dismantle pull bar, which results in following problem:
In order to form the crane arm of different length, there will be many pull bars for subsequent use, even needing near tower crane, set up the warehouse stacking pull bar;
Change boom length operation process complicated, middle transport bothers, and this not only adds the complexity of operation, wastes the manpower and materials of dispensing.
Therefore, the tower crane of wishing a kind of simple and row and the adjustable Tiebar structure of actv. and having it adapts to solve the problem.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of crane arm pull bar for above-mentioned Problems existing and have the tower crane of this pull bar, the quick adjusting of pull bar length can be realized, when tower crane changes maximum functional amplitude, do not need dismounting, reinstall new pull bar, thus overcome or at least alleviate the above-mentioned defect of prior art.
The technical scheme that the utility model adopts is: crane arm pull bar, it is characterized in that: it comprises the some poles connected successively, each pole two ends are provided with the multiple connecting bore of continuous print along its length, and adjacent two poles are by connecting bore and the hinge through this connecting bore.
Described pole comprises round steel, and is fixed on monaural plate and the bi-lug plate at these round steel two ends respectively, in described monaural plate and bi-lug plate, is provided with the multiple described connecting bore of continuous print along pole length direction.
Monaural plate on different pole and bi-lug plate docking, and realize the hinged of two poles by relative connecting bore and through the bearing pin of this connecting bore.
The utility model additionally provides a kind of tower crane, and described tower crane comprises crane arm pull bar as above.
The beneficial effects of the utility model: the utility model is provided with the multiple connecting bore of continuous print (determining hinge-point quantity on demand) along its length at pole two ends, hinge-point change in location during by connecting, reach the adjustment to pull bar effective length, thus realize the maximum functional amplitude of the change of pull bar overall length, change crane arm, eliminate tower crane in the past each luffing all need the complex process of again joining pull bar, removing and installing, not only increase work efficiency, reduce the input in manpower and materials simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing pull bar.
Fig. 2 is the structural representation of pole in the utility model.
Fig. 3 is the connection diagram in the utility model before the adjustment of crane arm pull bar.
Fig. 4 is that in the utility model, crane arm pull bar regulates the connection diagram of rear (overall length shortening).
Fig. 5 is that the A-A of Fig. 4 is to cutaway view.
Detailed description of the invention
In the crane arm of traditional tower crane, pull bar is connected in sequence by the single pole shown in some Fig. 1, when needing adjustment pull bar length, can only be realized by the dismounting of single pole and increase, operation process is complicated, even affects the normal use of hoisting crane.
As Fig. 2, Fig. 3, shown in Fig. 4, the present embodiment comprises the some poles connected successively 1, described pole 1 comprises round steel 1-1, and be fixed on monaural plate 1-2 and the bi-lug plate 1-3 at these round steel two ends respectively, on described monaural plate 1-2 and bi-lug plate 1-3, the multiple connecting bore 2 of continuous print is provided with along pole 1 length direction, adjacent two poles 1 are by connecting bore 2 and bearing pin 3 and hinged (the monaural plate 1-2 on different the pole 1 and bi-lug plate 1-3 docking of spring cotter of passing this connecting bore, and realize the hinged of two poles 1 by relative connecting bore 2 and through the bearing pin 3 of this connecting bore and spring cotter, as shown in Figure 5).
As shown in Figure 3, Figure 4, when tower crane changes maximum functional amplitude and different boom length, regulate the hinge hole position of adjacent two poles 1, namely the hinge hole position (hinged connecting bore 2 is carried out in replacing) of monaural plate 1-2 and bi-lug plate 1-3 is regulated, changed by hinge hole position, the change of pull bar length can be realized, and dismantle without the need to carrying out and install additional, more convenient.
The utility model additionally provides a kind of tower crane, and described tower crane comprises crane arm pull bar as above, and crane arm pull bar is connected by single hinge with between crane arm, is connected between each pole 1 by the steady failure-free of hinge.
Above content described in this specification sheets is only to the explanation of the utility model structure example.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. a crane arm pull bar, it is characterized in that: it comprises the some poles connected successively (1), each pole (1) two ends are provided with the multiple connecting bore of continuous print (2) along its length, and adjacent two poles (1) are by connecting bore (2) and hinged through the bearing pin (3) of this connecting bore.
2. crane arm pull bar according to claim 1, it is characterized in that: described pole (1) comprises round steel (1-1), and being fixed on monaural plate (1-2) and the bi-lug plate (1-3) at these round steel two ends respectively, described monaural plate (1-2) and bi-lug plate (1-3) go up, are provided with the multiple described connecting bore (2) of continuous print along pole (1) length direction.
3. crane arm pull bar according to claim 2, it is characterized in that: the monaural plate (1-2) on different pole (1) and bi-lug plate (1-3) docking, and realize the hinged of two poles (1) by relative connecting bore (2) and through the bearing pin (3) of this connecting bore.
4. a tower crane, is characterized in that: comprise the crane arm pull bar as described in claims 1 to 3 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680715.1U CN204281126U (en) | 2014-11-14 | 2014-11-14 | Crane arm pull bar and there is the tower crane of this pull bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680715.1U CN204281126U (en) | 2014-11-14 | 2014-11-14 | Crane arm pull bar and there is the tower crane of this pull bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204281126U true CN204281126U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420680715.1U Active CN204281126U (en) | 2014-11-14 | 2014-11-14 | Crane arm pull bar and there is the tower crane of this pull bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204281126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114664581A (en) * | 2021-12-24 | 2022-06-24 | 河南平高通用电气有限公司 | Driving connecting rod assembly of outdoor three-position switch and outdoor three-position switch |
-
2014
- 2014-11-14 CN CN201420680715.1U patent/CN204281126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114664581A (en) * | 2021-12-24 | 2022-06-24 | 河南平高通用电气有限公司 | Driving connecting rod assembly of outdoor three-position switch and outdoor three-position switch |
| CN114664581B (en) * | 2021-12-24 | 2023-09-29 | 河南平高通用电气有限公司 | Driving connecting rod assembly of outdoor three-position switch and outdoor three-position switch |
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| GR01 | Patent grant |