CN205023767U - Armful arm structure of both arms formula tower machine - Google Patents
Armful arm structure of both arms formula tower machine Download PDFInfo
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- CN205023767U CN205023767U CN201520272319.XU CN201520272319U CN205023767U CN 205023767 U CN205023767 U CN 205023767U CN 201520272319 U CN201520272319 U CN 201520272319U CN 205023767 U CN205023767 U CN 205023767U
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- pulley
- tower machine
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Abstract
The utility model discloses an armful arm structure of both arms formula tower machine, including two hoisting mechanism, embrace arm wire rope (2) for two to reach two symmetric connection top of the tower (5), can center on tie point upper and lower rotatory jib loading boom (3) respectively, and top of the tower (5) top is fixed with two top of the tower pulley (1.2), every jib loading boom (3) distal end is one fixed arm head pulley (1.1) all, and every armful arm wire rope (2) one end is connected with the hoisting mechanism cylinder that corresponds, and the other end passes corresponding top of the tower pulley (1.2) and arm head pulley (1.1), last fixed connection top of the tower (5) in proper order. Can pack up two jib loading boom (3) through armful arm wire rope (2) be connected with hoisting mechanism when falling the tower and embrace on the body of the tower, two jib loading boom (3) were all rotatory to close vertical state this moment, had obviously reduced the space that the tower that falls occupy.
Description
Technical field
The utility model relates to a kind of arm structure, is particularly useful for double-arm tower machine.
Background technology
Tower crane forms topside by a crane arm and an equilibrium arm usually, and wherein, the structure of equilibrium arm is generally relatively fixing, and the structure of crane arm is divided into movable arm type and fixed type (band dolly).Because tower machine upper structure is relatively fixing, so complete the building layout of project under construction to jacking, need to leave larger space, be convenient to tower crane and tower body is dropped to detouchable height.Topside pattern as shown in Figure 3, because crane arm can not rotate up, required Luo Ta space is maximum; Topside pattern as shown in Figure 4, because crane arm can raise up certain angle, relative Luo Ta space is less, but has equilibrium arm to rotate up due to tower body, and required Luo Ta space is also larger.
Visible, just because of the work of current tower machine upper structure and position adjustable relatively limited, comparatively large to reserving tower space requirement when falling tower dismounting, too high to the requirement of buildings and Ground arrangement, what be unfavorable on the contrary constructing carries out in time, affects work efficiency.
Summary of the invention
For above-mentioned existing technical matters, the utility model provides a kind of arm structure of double-arm tower machine, makes crane arm can receive the nearly tower body of arm rest when falling tower, forms relatively little space, to reduce taking reserved Luo Ta space.
For achieving the above object, the utility model provides a kind of arm structure of double-arm tower machine, comprises two lifting mechanisms, two arm steel ropes, and two symmetrical connect tower tops and can respectively around the crane arm that point of connection rotates up and down.Because two crane arms are arranged symmetrically with, so the more existing scheme of the relative stability of tower machine is more excellent.
And, tower top top is fixed with two tower top pulleys, each crane arm far-end all fixes an arm head pulley, each arm steel rope one end connects with corresponding lifting mechanism cylinder, the other end through corresponding tower top pulley and arm head pulley, is finally fixedly connected with tower top, the crane arm that rotatable folding and unfolding is corresponding successively, especially two crane arms can be made to be rotated upwardly to close to vertical shape, to enhance the space applicability of product.
Further, be also fixedly connected with by flexible draw bar between described crane arm with tower top top, this flexible draw bar only by pulling force, is not stressed, the rotation of auxiliary control two crane arm.
Further, described flexible draw bar comprises outside link and draw-in bar, improves safety performance when crane arm rotates.
Further, described flexible draw bar adopts steel rope, and fixes for pressure joint.
To sum up, the equilibrium arm structural development of tower crane is crane arm by the utility model, make a tower body that two crane arms are installed simultaneously, by the arm steel rope that is connected with lifting mechanism two crane arms can be packed up when falling tower and embrace on tower body, now two crane arms all rotate to close to vertical state, considerably reduce the space that tower takies.Meanwhile, enhance stability and the practicality of tower machine, improve the work efficiency of tower machine, utilize promoting the use of of product.
Accompanying drawing explanation
Structural representation when Fig. 1 is the expansion of the utility model both arms;
Structural representation when Fig. 2 is the utility model both arms arm;
Fig. 3 is that in prior art, crane arm is the structural representation of flat arm-type tower machine upper structure;
Fig. 4 is that in prior art, crane arm is the structural representation of the tower machine upper structure of movable arm type;
In figure: 1.1, arm head pulley, 1.2, tower top pulley, 2, arm steel rope, 3, crane arm, 4.1, outside link, 4.2, draw-in bar, 5, tower top.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, tower machine tower top 5 does not have equilibrium arm, but is symmetrically connected with two crane arms 3, and each crane arm 3 all can rotate around the point of connection of self and tower top 5 up and down, and drives corresponding arm steel rope 2 to control by lifting mechanism.
Concrete, two tower top pulleys 1.2 are fixed on tower top 5 top, the far-end of each crane arm 3 fixes an arm head pulley 1.1, each arm steel rope 2 one end connects corresponding lifting mechanism, the other end lays out from the cylinder that hoists, successively through corresponding tower top pulley 1.2, arm head pulley 1.1, be finally fixed on tower top 5.So, rotated by lifting mechanism cylinder, arm steel rope 2 by the pull-up of corresponding crane arm 3, can be formed arm as shown in Figure 2, reduces the requirement to Luo Ta space.
In addition, respectively by flexible draw bar between each crane arm 3 and tower top 5 top, namely outside link 4.1 is fixedly connected with draw-in bar 4.2, and outside link 4.1 and draw-in bar 4.2 adopt steel rope pressure joint to fix, make two crane arms 3 when raising up arm, under the effect of outside link 4.1 and draw-in bar 4.2 can flexible fall, avoid mutual interference.
Be provided with tower machine of the present utility model operationally, the state of its crane arm 3 as shown in Figure 1, to be sling expansion by outside link 4.1 and draw-in bar 4.2, normal operation.When needs fall tower dismounting, utilize the arm steel rope 2 that each crane arm 3 of lifting mechanism scrolling connects, under the pulling of arm steel rope 2, two crane arms 3 are rotated upwardly to close to vertical shape, and as shown in Figure 2, now required Luo Ta space is minimum.Because tower body topside can be shrunk to arm shape voluntarily, so relatively low to the arrangement requirement of buildings, be more conducive to reasonable Arrangement place and building, improve the utilization to place.
Claims (4)
1. an arm structure for double-arm tower machine, is characterized in that, comprises two lifting mechanisms, two arm steel ropes (2), and two symmetrical connect tower top (5) and can respectively around the crane arm (3) that point of connection rotates up and down;
And, tower top (5) top is fixed with two tower top pulleys (1.2), each crane arm (3) far-end all fixes an arm head pulley (1.1), each arm steel rope (2) one end connects with corresponding lifting mechanism cylinder, the other end through corresponding tower top pulley (1.2) and arm head pulley (1.1), is finally fixedly connected with tower top (5) successively.
2. the arm structure of a kind of double-arm tower machine according to claim 1, is characterized in that, described crane arm (3) is also fixedly connected with by flexible draw bar with between tower top (5) top.
3. the arm structure of a kind of double-arm tower machine according to claim 2, is characterized in that, described flexible draw bar comprises outside link (4.1) and draw-in bar (4.2).
4. the arm structure of a kind of double-arm tower machine according to Claims 2 or 3, is characterized in that, described flexible draw bar adopts steel rope, and fixes for pressure joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272319.XU CN205023767U (en) | 2015-09-29 | 2015-09-29 | Armful arm structure of both arms formula tower machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272319.XU CN205023767U (en) | 2015-09-29 | 2015-09-29 | Armful arm structure of both arms formula tower machine |
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| Publication Number | Publication Date |
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| CN205023767U true CN205023767U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520272319.XU Active CN205023767U (en) | 2015-09-29 | 2015-09-29 | Armful arm structure of both arms formula tower machine |
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| CN (1) | CN205023767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030680A (en) * | 2017-06-01 | 2017-08-11 | 苏州优银机械有限公司 | Multifunctional multi-head mechanical arm |
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2015
- 2015-09-29 CN CN201520272319.XU patent/CN205023767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030680A (en) * | 2017-06-01 | 2017-08-11 | 苏州优银机械有限公司 | Multifunctional multi-head mechanical arm |
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| GR01 | Patent grant |