CN212358014U - Single-span cable hoisting device for hoisting suspension bridge girder - Google Patents
Single-span cable hoisting device for hoisting suspension bridge girder Download PDFInfo
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- CN212358014U CN212358014U CN202020626257.9U CN202020626257U CN212358014U CN 212358014 U CN212358014 U CN 212358014U CN 202020626257 U CN202020626257 U CN 202020626257U CN 212358014 U CN212358014 U CN 212358014U
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- suspension bridge
- guide pulley
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Abstract
The utility model discloses a suspension bridge girder hoist and mount are put with single span cable, including the main push-towing rope, the jack-up cable, the haulage cable, the hoist engine, diverting pulley is located near suspension bridge main tower subaerial, suspension bridge main tower upper portion is equipped with guide pulley assembly, the main push-towing rope both ends are fixed in the main tower top respectively and are located the guide pulley assembly top, the wherein one end of jack-up cable and haulage cable is fixed in on the guide pulley assembly of one of them main tower, the other end of jack-up cable and haulage cable passes the guide pulley assembly on another main tower upper portion in proper order, diverting pulley is connected with the hoist engine, line between guide pulley assembly on another main tower upper portion and the diverting pulley is alpha with the biggest contained angle of vertical direction, satisfy 0 and be less than or equal to alpha 10, the utility model has the advantages of being simple structure and low.
Description
Technical Field
The utility model belongs to bridge construction equipment, concretely relates to suspension bridge girder hoist and mount are put with single span cable hoist and mount.
Background
With the development of the traffic industry of China, a large number of suspension bridges are constructed in mountainous areas. The construction of a main girder of a suspension bridge in a mountainous area is usually carried out by adopting a cable crane, the conventional cable crane adopts a three-span continuous design (as shown in figure 1), and a main cable 1 is anchored at an anchor 5 of a side span of a bridge after passing through a cable saddle at the top of a tower. The three-span continuous cable crane has the advantages of large steel wire rope consumption, complex structure, need of a special cable saddle for equipment on the top of a bridge tower and higher overall cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a suspension bridge girder hoist and mount are put with single span cable hoist and mount simple structure, low in cost.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a single-span cable hoisting device for hoisting a main beam of a suspension bridge comprises a main cable, a hoisting cable, a traction cable, a winch and a steering pulley, wherein the winch and the steering pulley are positioned on the ground near a main tower of the suspension bridge, a guide pulley assembly is arranged on the upper part of the main tower of the suspension bridge, two ends of the main cable are respectively fixed at the top of the main tower and positioned above the guide pulley assembly, one end of the hoisting cable and one end of the traction cable are fixed on the guide pulley assembly of one of the main towers, the other ends of the hoisting cable and the traction cable sequentially penetrate through the guide pulley assembly and the steering pulley on the upper part of the other main tower and are connected with the winch, the maximum included angle between the connecting line between the guide pulley assembly and the steering pulley on the upper part of the other main tower and the vertical direction is alpha, and the condition that alpha.
As a further improvement of the above technical solution:
the single-span cable hoisting device further comprises an anchoring device, and two ends of the main cable are anchored on the upper portion of the main tower through the anchoring device.
0≤α≤5°。
The hoisting cable and the traction cable positioned between the two main towers are connected with the main cable through connecting pieces.
The single-span cable hoisting device further comprises a crown block for placing the main beam, wherein the crown block is positioned between the two main towers and moves on the hoisting cable, the traction cable and the main cable.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a single span cable hoist of suspension bridge girder hoist and mount is put, with main rope snap-on at the tower top of the king tower, the main rope is striden to no limit, and cable hoist and mount is put required horizontal component and is provided by the main rope and the king tower of striding, and traction cable, hoisting rope one end are fixed, and the other end adopts the hoist engine as power, line between the direction pulley assembly on another king tower upper portion and the directive pulley is alpha with the contained angle of vertical direction, satisfies 0 and is less than or equal to alpha and less than or equal to 10, realizes the vertical lift and the longitudinal movement of girder (or girder steel), and the main rope tension of make full use of suspension bridge own balances the horizontal pulling force that cable hoist and mount in-process produced to the king tower, has reduced the length of main rope, has saved the wire rope of striding, simple.
Drawings
Figure 1 is a conventional cable hoist of the prior art.
Fig. 2 is the single span cable crane device of the utility model.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a partially enlarged view of fig. 2 at B.
Fig. 5 is a partially enlarged view of fig. 2 at C.
Fig. 6 is a partially enlarged view of fig. 2 at D.
The reference numerals in the figures denote:
1. a main rope; 2. hoisting cables; 3. a traction cable; 4. a crown block; 5. an anchorage part; 6. a winch; 7. an anchoring device; 8. a main tower; 9. a guide pulley assembly; 10. a diverting pulley.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples. Unless otherwise specified, the instruments or materials used in the present invention are commercially available.
Example 1:
as shown in fig. 2 to 6, the single-span cable hoisting device for hoisting a main beam of a suspension bridge in this embodiment includes a main cable 1, a hoisting cable 2, a traction cable 3, a winch 6, a diverting pulley 10, the winch 6 and the diverting pulley 10 are located on the ground near a main tower 8 of the suspension bridge, a guide pulley assembly 9 is disposed on the upper portion of the main tower 8 of the suspension bridge, two ends of the main cable 1 are respectively fixed on the top of the main tower 8 and located above the guide pulley assembly 9, one end of the hoisting cable 2 and one end of the traction cable 3 are fixed on the guide pulley assembly 9 of one of the main towers 8, the other ends of the hoisting cable 2 and the traction cable 3 sequentially pass through the guide pulley assembly 9 and the diverting pulley 10 on the upper portion of the other main tower 8 and are connected with the winch 6, a maximum included angle α between a connecting line between the guide pulley assembly 9 and the diverting pulley 10 on the upper portion of the other main tower 8 and the vertical. In the present embodiment, α =4 °.
The utility model discloses a single span cable hoist and mount of suspension bridge girder hoist and mount is put, with main rope 1 snap-on at the top of the tower of main tower 8, no limit strides main rope 1, and the cable hoist and mount is put required horizontal component and is provided by limit strides main rope and main tower 8, and traction cable 3, 2 one ends of jack-up cable are fixed, and the other end adopts hoist engine 6 as power, line between guide pulley assembly 9 on another main tower 8 upper portion and the directive pulley 10 and the contained angle of vertical direction are alpha, satisfy 0 and be less than or equal to alpha and be less than or equal to 10, realize the vertical lift and the longitudinal movement of girder (or girder steel), make full use of suspension bridge own main rope tension comes the balanced cable hoist and mount in-process to the produced horizontal pulling force of main tower 8, has reduced main rope 1's length, has saved the limit and has striden wire rope.
The single-span cable hoisting device further comprises an anchoring device 7, two ends of the main cable 1 are anchored on the upper portion of the main tower 8 through the anchoring device 7, and no additional ground anchor is needed.
The hoisting cable 2 and the traction cable 3 positioned between the two main towers 8 are connected with the main cable 1 through connecting pieces.
The single span cable hoisting device also comprises a crown block 4 for placing a main beam, wherein the crown block 4 is positioned between two main towers 8 and moves on the hoisting cable 2, the traction cable 3 and the main cable 1.
The hoist 6 includes a hoisting hoist and a traction hoist connected to the hoisting cable 2 and the traction cable 3, respectively.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a suspension bridge girder hoist and mount are put with single span cable, includes main rope (1), jack-up cable (2), haulage cable (3), hoist engine (6), diverting pulley (10) are located near suspension bridge king-tower (8) subaerial, and suspension bridge king-tower (8) upper portion is equipped with guide pulley assembly (9), its characterized in that: the two ends of the main rope (1) are respectively fixed to the tops of the main towers (8) and located above the guide pulley assemblies (9), one end of each of the hoisting rope (2) and the traction rope (3) is fixed to the guide pulley assembly (9) of one of the main towers (8), the other ends of the hoisting rope (2) and the traction rope (3) sequentially penetrate through the guide pulley assembly (9) and the steering pulley (10) on the upper portion of the other main tower (8) and are connected with the winch (6), the maximum included angle between the connecting line between the guide pulley assembly (9) and the steering pulley (10) on the upper portion of the other main tower (8) and the vertical direction is alpha, and alpha is more than or equal to 0 and less than or equal to 10 degrees.
2. The single span cable hoist device for hoisting the suspension bridge girder according to claim 1, characterized in that: the single-span cable hoisting device further comprises an anchoring device (7), and two ends of the main cable (1) are anchored on the upper portion of the main tower (8) through the anchoring device (7).
3. The single span cable hoist device for hoisting a suspension bridge girder according to claim 1 or 2, characterized in that: alpha is more than or equal to 0 and less than or equal to 5 degrees.
4. The single span cable hoist device for hoisting the suspension bridge girder according to claim 3, characterized in that: the hoisting cable (2) and the traction cable (3) positioned between the two main towers (8) are connected with the main cable (1) through connecting pieces.
5. The single-span cable crane device for hoisting the suspension bridge girder according to claim 4, wherein: the single-span cable hoisting device further comprises a crown block (4) used for placing a main beam, wherein the crown block (4) is located between the two main towers (8) and moves on the hoisting cable (2), the traction cable (3) and the main cable (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020626257.9U CN212358014U (en) | 2020-04-23 | 2020-04-23 | Single-span cable hoisting device for hoisting suspension bridge girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020626257.9U CN212358014U (en) | 2020-04-23 | 2020-04-23 | Single-span cable hoisting device for hoisting suspension bridge girder |
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| CN212358014U true CN212358014U (en) | 2021-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294022A (en) * | 2021-05-06 | 2021-08-24 | 上海市机电设计研究院有限公司 | Steel strand penetrating method utilizing wind power tower cylinder foundation prestressed cable preformed hole |
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2020
- 2020-04-23 CN CN202020626257.9U patent/CN212358014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294022A (en) * | 2021-05-06 | 2021-08-24 | 上海市机电设计研究院有限公司 | Steel strand penetrating method utilizing wind power tower cylinder foundation prestressed cable preformed hole |
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