CN222908564U - An overhead man-carrying device in the catwalk portal of an ultra-long span suspension bridge - Google Patents

Abstract

The utility model provides an overhead manned device in a catwalk portal of an ultra-long span suspension bridge, which comprises a plurality of portal catwalk brackets and catwalk main bodies arranged on bottom beams of the portal catwalk brackets, wherein rope supporting wheel sets are arranged on upright posts of the portal catwalk brackets, traction ropes are tensioned between the rope supporting wheel sets and are in transmission connection with traction driving mechanisms at two ends of the traction ropes, and the manned device is hoisted on the traction ropes. The passenger carrying device that accessible set up on the stand of door type catwalk bracket and be higher than catwalk main part, accomplish the transportation to the staff, simultaneously because set up the passenger carrying device that possesses the lift can, can set up it in the position apart from catwalk main part certain height, do not influence catwalk's normal construction effect, accomplish personnel's upper and lower through passenger carrying device's lift, realized improving operating personnel walking efficiency, reduce operating personnel working strength, improve operating personnel working condition.

Description

Overhead manned device in super-long span suspension bridge catwalk portal

Technical Field

The utility model relates to the field of bridge catways, in particular to an overhead manned device in a portal of a catwalk of an ultra-long span suspension bridge.

Background

The catwalk is used as the most important temporary structure in the construction of the upper structure of the suspension bridge, and the catwalk has the main functions of providing an operation platform for the construction of the upper structure, and ensuring that constructors can safely and effectively finish the operations of main cable traction, padlock, cable tightening, winding, girder erection and the like. The catwalk surface layer design at present generally comprises wire netting and flitch, and is high, and the slope is big, and walking difficulty belongs to high-risk operation, and the catwalk is under the pulsating wind effect, and vibration effect is obvious to cause the operation personnel difficult, waste time and energy when walking, easily produce tired, the travelling comfort is poor, the operating efficiency is low. The span of the suspension bridge is larger and larger, the main span of the suspension bridge in China breaks through a grade of 2000 meters, the corresponding catwalk length is more than 4000 meters, if the suspension bridge is still designed according to a conventional catwalk, constructors only need to walk the catwalk once, the suspension bridge takes 2-3 hours, if the suspension bridge is folded back, the operation intensity is extremely high, and the personnel construction efficiency and the construction quality are difficult to guarantee. Therefore, the overhead manned device in the catwalk portal of the super-long span suspension bridge is provided to solve the problems.

Disclosure of utility model

The utility model mainly aims to provide an overhead manned device in a catwalk portal of an ultra-long span suspension bridge, which solves the problems of difficult walking on a catwalk, time and labor waste of constructors.

In order to solve the technical problems, the utility model adopts the technical scheme that the overhead manned device in the catwalk portal of the super-long span suspension bridge comprises a plurality of portal catwalk brackets and catwalk main bodies arranged on bottom beams of the portal catwalk brackets, a rope supporting wheel set is arranged on an upright post of the portal catwalk brackets, a traction rope is tensioned between the rope supporting wheel sets, the traction rope is in transmission connection with traction driving mechanisms at two ends of the traction rope, and the manned device is hoisted on the traction rope;

The manned device comprises a connecting frame, a hoisting frame is arranged at the center of the top of the connecting frame, a traction rope clip connected with a traction rope is arranged on the hoisting frame, and the connecting frame can hoist the manned seat in a lifting manner through a lifting mechanism arranged on the connecting frame.

In the preferred scheme, the lifting mechanism comprises two winding mechanisms and a driving device which is in transmission connection with the two winding mechanisms at the same time, and the two winding mechanisms are symmetrically arranged at two sides of the lifting frame.

In the preferred scheme, the winding mechanism comprises two symmetrically arranged vertical plates and a winding cylinder rotatably arranged between the two vertical plates through a rotating shaft, and one end of the rotating shaft penetrates through the vertical plates to be connected with a worm wheel.

In the preferred scheme, the driving device comprises two support bearings arranged on the connecting frame, a transmission rod penetrating through the two support bearings, two worms arranged on the transmission rod, and a driving mechanism arranged on the connecting frame and in transmission connection with the transmission rod;

The two worms are opposite in rotation direction and are respectively connected with worm gears of the two winding mechanisms in a transmission manner.

In the preferred scheme, both sides of link all are provided with the recess, are provided with the pulley in the recess, twine at the outside stay cord of winding mechanism and form the cornerite through the pulley after being connected with manned seat.

In the preferred scheme, manned seat includes the seat body, and the back top of seat body is provided with the back frame, and the focus department of seat body sets up the vertically upward gallows, is provided with connecting portion between back frame and the gallows, and the top of gallows is provided with the lug.

In the preferred scheme, the top of gallows is provided with grafting portion, is provided with the pinhole on the grafting portion, and the bottom of link is provided with the cage portion corresponding with grafting portion, and when manned seat risen to the top, grafting portion inserts in the cage portion, is provided with the automatic plug round pin that can run through the pinhole on the cage portion.

The utility model provides an overhead manned device in a catwalk portal of an ultra-long span suspension bridge, which can finish the transportation of workers by arranging a manned device higher than a catwalk main body on a stand column of a portal catwalk bracket, and meanwhile, the manned device with lifting capability can be arranged at a position with a certain height from the catwalk main body, so that the normal construction effect of the catwalk is not influenced, and the lifting of the manned device is used for finishing the up and down of the workers, thereby improving the walking efficiency of the workers, reducing the working intensity of the workers and improving the labor condition of the workers.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a side view of the overall structure of the present utility model;

FIG. 2 is a block diagram of a manned apparatus of the present utility model;

FIG. 3 is a top view of the connector of the present utility model;

FIG. 4 is a block diagram of a drive apparatus of the present utility model;

FIG. 5 is a block diagram of a winding mechanism of the present utility model;

FIG. 6 is a block diagram of a passenger seat of the present utility model;

FIG. 7 is another view of the passenger seat structure of the present utility model;

In the figure, a door type catwalk bracket 1, a catwalk main body 2, a rope supporting wheel group 3, a manned device 4, a connecting frame 41, a groove 411, a pulley 412, a cage part 414, an automatic plug pin 415, a hoisting frame 42, a traction rope gripper 43, a lifting mechanism 44, a winding mechanism 441, a vertical plate 4410, a winding cylinder 4411, a driving device 442, a supporting bearing 4420, a transmission rod 4421, a worm 4423, a driving mechanism 4424, a manned seat 45, a seat body 450, a backrest frame 451, a hanging bracket 452, a connecting part 453, a lifting lug 454, a plug part 456, a pin hole 457 and a traction rope 5.

Detailed Description

As shown in fig. 1-7, an overhead manned device in a catwalk portal of an ultra-long span suspension bridge comprises a plurality of catwalk brackets 1 and catwalk main bodies 2 arranged on bottom beams of the catwalk brackets 1, rope supporting wheel sets 3 are arranged on upright posts of the catwalk brackets 1, traction ropes 5 are tensioned between the rope supporting wheel sets 3, the traction ropes 5 are in transmission connection with traction driving mechanisms at two ends of the traction ropes, and manned devices 4 are hoisted on the traction ropes 5.

It should be noted that, in this embodiment, the traction system composed of the rope supporting wheel set 3, the traction rope 5 and the traction driving mechanism is a common technical means for cableway transportation, so that the details are not described here, and the manned device 4 can be driven to move above the catwalk main body 2 by the traction system, so as to achieve the effect of transporting staff.

The manned device 4 comprises a connecting frame 41, a hoisting frame 42 is arranged at the center of the top of the connecting frame 41, a traction rope clip 43 connected with a traction rope 5 is arranged on the hoisting frame 42, and the connecting frame 41 can hoist and mount a manned seat 45 in a lifting manner through a lifting mechanism 44 arranged on the connecting frame.

Through setting up elevating system 44, can realize the effect of lift manned seat 45, and then can set up traction system and manned seat 45 in the position that is away from catwalk main part 2 a take the altitude to can not influence the normal work on the catwalk main part 2, when going up and down personnel, only need lift manned seat 45 can.

In the preferred scheme, elevating system 44 includes two rolling mechanism 441 and simultaneously with the drive arrangement 442 that two rolling mechanism 441 transmission is connected, two rolling mechanism 441 symmetry sets up in the both sides of hoist and mount frame 42, all twines on two rolling mechanism 441 and is provided with the stay cord that the tip is connected with manned seat 45, through setting up two rolling mechanism 441, can realize steadily going up and down manned seat 45's effect, adopts the mode of two rolling mechanism 441 of same drive arrangement 442 drive in addition, can ensure the synchronism of two rolling mechanism 441 receipts.

Wherein, winding mechanism 441 includes two riser 4410 that the symmetry set up, through the rotatable winding drum 4411 that sets up between two riser 4410 of pivot, and the one end of pivot is passed riser 4410 and is connected with worm wheel 4412, wherein all is provided with the bearing on two risers 4410, and the pivot of winding drum 4411 runs through the setting in the bearing to realize the receive and releases to the stay cord through the rotation of winding drum 4411.

The driving device 442 includes two support bearings 4420 fixed on the connecting frame 41, a transmission rod 4421 penetrating the two support bearings 4420, two worms 4423 fixed on the transmission rod 4421, and a driving mechanism 4424 arranged on the connecting frame 41 and connected with the transmission rod 4421 in a transmission way, wherein the transmission rod 4421 can be driven to rotate in the two support bearings 4420 by the power of the driving mechanism 4424, so as to drive the two worms 4423 to rotate.

In this embodiment, the driving mechanism 4424 is formed by connecting a driving motor and a speed reducer in a driving manner, and an end of the driving rod 4421 is connected to an output end of the speed reducer in a driving manner.

In addition, the two worms 4423 have opposite rotation directions and are respectively connected with the worm gears 4412 of the two winding mechanisms 441 in a transmission manner, so that the two winding mechanisms 441 can reversely rotate under the transmission of the two worms 4423, and the synchronous winding and unwinding effect is realized.

In the preferred scheme, both sides of link 41 all are provided with recess 411, are provided with pulley 412 in the recess 411, twine behind the outside stay cord of winding mechanism 441 forms the cornerite through pulley 412, be connected with manned seat 45, pulley 412 is concave wheel, can restrict the stay cord wherein, through setting up pulley 412, can effectively reduce frictional force.

In the preferred scheme, manned seat 45 includes seat body 450, and seat body 450 is the angle of elevation setting, and the back top of seat body 450 holds and sets firmly back frame 451, and the focus department of seat body 450 sets firmly vertically ascending gallows 452, has set firmly connecting portion 453 between back frame 451 and the gallows 452, can effectively improve manned seat 45's overall stability through connecting portion 453, and the top of gallows 452 is provided with lug 454, and the tip of stay cord is connected with lug 454.

In the preferred scheme, the top of gallows 452 is provided with grafting portion 456, is provided with pinhole 457 on grafting portion 456, and the bottom of link 41 is provided with the cage portion 414 corresponding with grafting portion 456, and when manned seat 45 risen to the top, grafting portion 456 inserts in cage portion 414, is provided with the automatic plug round pin 415 that can run through pinhole 457 on the cage portion 414, can lock manned seat 45 when removing through automatic plug round pin 415, and then makes rolling mechanism 441 be in the pressure release state.

The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.

Claims (7)

1. The overhead manned device in the catwalk portal of the super-long span suspension bridge comprises a plurality of portal catwalk brackets (1) and catwalk main bodies (2) arranged on bottom beams of the portal catwalk brackets (1), and is characterized in that cable supporting wheel sets (3) are arranged on upright posts of the portal catwalk brackets (1), traction ropes (5) are tensioned between the cable supporting wheel sets (3), the traction ropes (5) are in transmission connection with traction driving mechanisms at two ends of the traction ropes, and the manned device (4) is hoisted on the traction ropes (5);

The manned device (4) comprises a connecting frame (41), a hoisting frame (42) is arranged at the center of the top of the connecting frame (41), a traction rope clip (43) connected with a traction rope (5) is arranged on the hoisting frame (42), and the connecting frame (41) can hoist and mount a manned seat (45) in a lifting manner through a lifting mechanism (44) arranged on the connecting frame.

2. The overhead manned device in the catwalk portal of the super long span suspension bridge as claimed in claim 1, wherein the lifting mechanism (44) comprises two rolling mechanisms (441) and a driving device (442) which is in transmission connection with the two rolling mechanisms (441) at the same time, and the two rolling mechanisms (441) are symmetrically arranged at two sides of the lifting frame (42).

3. The overhead manned device in the catwalk portal of the super long span suspension bridge as claimed in claim 2, wherein the rolling mechanism (441) comprises two symmetrically arranged vertical plates (4410), and a rolling cylinder (4411) rotatably arranged between the two vertical plates (4410) through a rotating shaft, and one end of the rotating shaft penetrates through the vertical plates (4410) to be connected with a worm wheel (4412).

4. The overhead manned device in the catwalk portal of the super long span suspension bridge according to claim 3, wherein the driving device (442) comprises two supporting bearings (4420) arranged on the connecting frame (41), a transmission rod (4421) penetrating through the two supporting bearings (4420), two worms (4423) arranged on the transmission rod (4421), and a driving mechanism (4424) arranged on the connecting frame (41) and in transmission connection with the transmission rod (4421);

The rotation directions of the two worms (4423) are opposite, and the two worms are respectively connected with worm wheels (4412) of the two winding mechanisms (441) in a transmission way.

5. The overhead manned device in the catwalk portal of the super long span suspension bridge as claimed in claim 4, wherein the grooves (411) are arranged on two sides of the connecting frame (41), pulleys (412) are arranged in the grooves (411), and the pull ropes wound outside the winding mechanism (441) are connected with the manned seat (45) after forming wrap angles through the pulleys (412).

6. The overhead manned device in the catwalk portal of the super long span suspension bridge as claimed in any one of claims 1 to 5, wherein the manned seat (45) comprises a seat body (450), a backrest frame (451) is arranged at the top end of the backrest of the seat body (450), a vertically upward hanging frame (452) is arranged at the center of gravity of the seat body (450), a connecting part (453) is arranged between the backrest frame (451) and the hanging frame (452), and a lifting lug (454) is arranged at the top of the hanging frame (452).

7. The overhead man-carrying device in the catwalk portal of the super long span suspension bridge as claimed in claim 6, wherein the top of the hanging frame (452) is provided with a plug-in part (456), the plug-in part (456) is provided with a pin hole (457), the bottom of the connecting frame (41) is provided with a cage part (414) corresponding to the plug-in part (456), when the man-carrying seat (45) is lifted to the top, the plug-in part (456) is inserted into the cage part (414), and the cage part (414) is provided with an automatic plug-in pin (415) capable of penetrating the pin hole (457).