CN213267542U - Self-anchored balance weight frame of main cable traction system of suspension bridge - Google Patents
Self-anchored balance weight frame of main cable traction system of suspension bridge Download PDFInfo
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- CN213267542U CN213267542U CN202022050287.2U CN202022050287U CN213267542U CN 213267542 U CN213267542 U CN 213267542U CN 202022050287 U CN202022050287 U CN 202022050287U CN 213267542 U CN213267542 U CN 213267542U
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- movable pulley
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Abstract
The utility model belongs to the technical field of a method or equipment specially used for erecting and assembling a bridge, in particular to a self-anchored suspension bridge main cable traction system balance weight frame, which comprises a bracket consisting of a stand column and a main beam, wherein the bracket is vertically arranged, the main beam is provided with two groups of steering wheels, the two groups of steering wheels are arranged in parallel, a movable pulley is arranged between the steering wheels, the movable pulley is suspended above the steering wheels and is parallel to the steering wheels, and a rotating shaft is penetrated in the movable pulley; a guide wheel is arranged above the movable pulley and is rotatably connected to the top of the bracket. When the main cable of the self-anchored suspension bridge is installed, the problem that a winch is required to take up and pay off a traction rope after the counterweight changes is solved.
Description
Technical Field
The utility model belongs to the technical field of the method or equipment that are exclusively used in and erect and assemble the bridge, concretely relates to from anchor suspension bridge main push-towing system counterweight housing.
Background
A self-anchored bridge with the cable or chain cable bearing tension as its main bearing member is composed of main cable, suspension cable, cable tower and bridge deck system. When the self-anchored suspension bridge is installed, the traction system is a necessary device for erecting the main cable. In order to improve the erection efficiency and quality, a large-circulation traction system is adopted as a traction system of the main cable.
The large circulation system comprises a winch, a traction rope, two groups of dragging devices, a guide wheel, a riding wheel, a balance weight frame and the like, wherein one group of dragging devices drag a cable strand to the opposite bank from a cable releasing area, and the other group of dragging devices drag the cable strand to the cable releasing area from the opposite bank for circulating reciprocating operation. In order to control the main cable sag during pulling, a balance weight is arranged for adjustment, and a structure for supporting the balance weight is a balance weight frame. Chinese patent CN101177931 discloses a large-span suspension bridge main cable erection portal frame type small-cycle traction system, which discloses a balance weight frame, but the disadvantage is that each guide wheel is fixed, the change of the traction rope sag caused by the change of the balance weight can only be adjusted by winding and unwinding of a winch, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a from anchor suspension bridge main push-towing system counterweight frame to still need the hoist engine to receive and release the problem of haulage rope after avoiding counterweight change.
In order to achieve the above purpose, the utility model discloses a scheme does: a balance weight frame of a main cable traction system of a self-anchored suspension bridge comprises a support consisting of an upright post and a main beam, wherein the support is vertically arranged, two groups of steering wheels are arranged on the main beam in parallel, a movable pulley is arranged between the steering wheels, the movable pulley is suspended above the steering wheels, the movable pulley is parallel to the steering wheels, and a rotating shaft penetrates through the movable pulley; a guide wheel is arranged above the movable pulley and is rotatably connected to the top of the bracket.
The working principle and the beneficial effects of the scheme are as follows: the traction rope of the traction system passes below one group of steering wheels, then passes above the movable pulley and then passes below the other group of steering wheels. The counterweight is connected with the rotating shaft after bypassing the guide wheel through the flexible rope, and the guide wheel is arranged at the top of the bracket, so that the counterweight can be suspended by selecting the flexible rope at a proper length. The gravity of the counterweight generates pulling force on the movable pulley, so that the movable pulley moves upwards, the length of the traction rope between the movable pulley and the steering wheel is increased, and the verticality of the traction rope is adjusted. Through the size of adjusting the balance weight, the variable quantity of the length of the traction rope caused by the change of the verticality of the traction rope can be converted into the length of the traction rope between the guide wheel and the steering wheel, and therefore the traction rope is not required to be wound and unwound by the winch.
Optionally, the axis of the guide wheel is perpendicular to the axis of the travelling block. Therefore, the phenomenon that the motion path of the balance weight is crossed with the motion path of the traction rope is avoided, the mutual influence of the motion path and the motion path is avoided, and enough operation field space is reserved for increasing and decreasing the balance weight.
Optionally, the top of the support is further provided with a longitudinal beam, the guide wheel is installed on the longitudinal beam, one end of the longitudinal beam is fixed with the support, and the other end of the longitudinal beam is cantilevered to the outer side of the support. Make the counter weight can encorbelment to the support outside, reserve sufficient space for the counter weight.
Optionally, the longeron includes the canned paragraph and the section of encorbelmenting, but the canned paragraph articulates and the section luffing motion of encorbelmenting each other between canned paragraph and the section of encorbelmenting, the pin joint is located the support outside, it still is equipped with support frame and threaded rod to encorbelment between section and the support, the support frame is hexagonal frame construction, two liang of six limits of support frame are articulated, open threaded hole on one of them edge of support frame, threaded hole female connection has the threaded rod, the threaded rod rotates after extending away from the threaded hole and connects in the contralateral edge of support frame, be provided with stop device on the threaded rod, the support frame has the limit and the leg. The limiting device prevents the end part of the threaded rod from being separated from the edge of the bracket rotationally connected with the threaded rod. The support frame can be controlled to stretch out and draw back when the threaded rod is rotated, so that the height of the cantilever section of the longitudinal beam is controlled, and the counterweight is convenient to take and place.
Optionally, a steering beam is mounted on the main beam, a steering wheel seat is mounted on the steering beam, and the steering wheel seat is rotatably connected to the steering wheel seat. The steering wheel is convenient to install.
Drawings
Fig. 1 is a front view of a counterweight frame of a main cable traction system of a self-anchored suspension bridge according to an embodiment of the present invention;
fig. 2 is a side view of a counterweight frame of a main cable traction system of a self-anchored suspension bridge according to an embodiment of the present invention;
fig. 3 is a front view of a counterweight frame of a main cable traction system of a self-anchored suspension bridge according to a second embodiment of the present invention;
fig. 4 is a schematic structural view of a support frame in the second embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a vertical column 1, a main beam 2, a steering beam 3, a steering wheel seat 4, a steering wheel 5, a U-shaped frame 6, a longitudinal beam 7, a fixed section 701, an overhanging section 702, an articulated shaft 703, a movable pulley 8, a guide wheel 9, a support frame 10, a threaded rod 11 and a balance weight 12.
Example one
The embodiment is basically as shown in fig. 1 and fig. 2: a self-anchored suspension bridge main cable traction system counterweight 12 frame comprises a support frame consisting of an upright post 1 and a main beam 2, wherein the support frame is vertically arranged, the main beam 2 is provided with a steering beam 3, the steering beam 3 is provided with two steering wheel seats 4, each steering wheel seat 4 is rotatably connected with a steering wheel 5, the steering wheels 5 are arranged in parallel, a movable pulley 8 is arranged between the steering wheels 5, the movable pulley 8 is suspended above the steering wheels 5, the movable pulley 8 is parallel to the steering wheels 5, a rotating shaft penetrates through the movable pulley 8, and the movable pulley 8 and the rotating shaft penetrate through a U-shaped frame 6; the top of the bracket is also provided with a longitudinal beam 7, a guide wheel 9 is arranged on the longitudinal beam 7, one end of the longitudinal beam 7 is fixed with the bracket, and the other end of the longitudinal beam is cantilevered to the outer side of the bracket; two ends of the longitudinal beam 7 are respectively and rotatably connected with a guide wheel 9, and the axis of the guide wheel 9 is vertical to the axis of the movable pulley 8.
The traction ropes of the traction system pass under one set of diverting pulleys 5, over the travelling block 8 and then under the other set of diverting pulleys 5. The counterweight 12 is tied on a steel wire rope, the steel wire rope is connected with the U-shaped frame 6 on the movable pulley 8 after bypassing the guide wheel 9 on the longitudinal beam 7, and the end of the steel wire rope is fixed by a steel wire rope buckle. After the wire rope is connected to the movable sheave 8, the counterweight 12 remains suspended.
The gravity of the balance weight 12 generates pulling force on the movable pulley 8 to move the movable pulley 8 upwards, so that the length of the traction rope between the movable pulley 8 and the steering wheel 5 is increased, and the verticality of the traction rope is adjusted. Through the size of adjustment balanced heavy 12, can let the pulling force rebalance of balanced heavy 12 and haulage rope, rebalance back, the change volume of the haulage rope length that the change of haulage rope sag arouses turns into the haulage rope at the length between leading wheel 9 and directive wheel 5, and every 1cm that falls of balanced heavy 12 enables haulage rope shrink 2cm, otherwise then enables the haulage rope and puts 2cm, consequently no longer needs the hoist engine work to receive and release the haulage rope.
Example two
The present embodiment is different from the first embodiment in that: as shown in figure 3 of the drawings, fig. 4 shows, longeron 7 includes canned paragraph 701 and encorbelmenting section 702, canned paragraph 701 and encorbelment between the section 702 and articulate each other through articulated shaft 703, articulated shaft 703 level sets up and makes encorbelmenting section 702 luffing motion, the pin joint is located the support outside, still be equipped with support frame 10 and threaded rod 11 between encorbelmenting section 702 and the support, support frame 10 is hexagonal frame construction, two liang of six limits of support frame 10 articulate, threaded hole is opened to one of them edge of support frame 10, threaded hole female connection has threaded rod 11, be equipped with the handle on the threaded rod 11, threaded rod 11 rotates after extending out from the threaded hole and connects on the edge of support frame 10 offside, two split pins have been worn to threaded rod 11 tip, the opposite side of the limit that has the threaded hole is located between two split pins, the limit and the leg joint of support frame 10 with.
The threaded rod 11 is rotated, and the edge with the threaded hole moves along the axial direction of the threaded rod 11 under the action of the threads, so that the stretching of the whole support frame 10 is controlled. The longer the support frame 10 is extended, the higher the tilting height of the overhanging section 702 is, and the larger the space for the counterweight 12 to be able to ascend and descend. And the cantilevered section 702 may be suspended to facilitate removal of the counterweight 12 after the support frame 10 is retracted.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.
Claims (5)
1. From anchor formula suspension bridge main push-towing system balancing weight frame, its characterized in that: the movable pulley suspension device comprises a support consisting of an upright post and a main beam, wherein the support is vertically arranged, two groups of steering wheels are arranged on the main beam in parallel, a movable pulley is arranged between the steering wheels, the movable pulley is suspended above the steering wheels, the movable pulley is parallel to the steering wheels, and a rotating shaft penetrates through the movable pulley; a guide wheel is arranged above the movable pulley and is rotatably connected to the top of the bracket.
2. The self-anchored suspension bridge main cable traction system counterweight housing of claim 1, wherein: the axis of the guide wheel is vertical to the axis of the movable pulley.
3. The self-anchored suspension bridge main cable traction system counterweight housing of claim 2, wherein: the top of support still is equipped with the longeron, and the leading wheel is installed on the longeron, and the one end and the support of longeron are fixed, and the other end is encorbelmented to the support outside.
4. The self-anchored suspension bridge main cable traction system counterweight housing of claim 3, wherein: the longeron includes the canned paragraph and the section of encorbelmenting, but the canned paragraph articulates and the section luffing motion of encorbelmenting each other between the canned paragraph and the section of encorbelmenting, the pin joint is located the support outside, it still is equipped with support frame and threaded rod to encorbelment between section and the support, the support frame is hexagonal frame construction, two liang of hinges in six limits of support frame, open threaded hole on one of them edge of support frame, threaded hole female connection has the threaded rod, the threaded rod rotates after extending away from the threaded hole and connects on the contralateral edge of support frame, be provided with stop device on the threaded rod, the support frame has the limit and the.
5. The self-anchored suspension bridge main cable traction system counterweight housing of claim 1, wherein: the main beam is provided with a steering beam, the steering beam is provided with a steering wheel seat, and the steering wheel seat is rotatably connected to the steering wheel seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022050287.2U CN213267542U (en) | 2020-09-17 | 2020-09-17 | Self-anchored balance weight frame of main cable traction system of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022050287.2U CN213267542U (en) | 2020-09-17 | 2020-09-17 | Self-anchored balance weight frame of main cable traction system of suspension bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213267542U true CN213267542U (en) | 2021-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022050287.2U Active CN213267542U (en) | 2020-09-17 | 2020-09-17 | Self-anchored balance weight frame of main cable traction system of suspension bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213267542U (en) |
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2020
- 2020-09-17 CN CN202022050287.2U patent/CN213267542U/en active Active
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