CN215887954U

CN215887954U - Slide rail type auxiliary supporting device for front supporting leg of bridge girder erection machine

Info

Publication number: CN215887954U
Application number: CN202121771025.3U
Authority: CN
Inventors: 张弛宇; 刘宏; 何龙成; 王准; 刘开双
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-22
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a slide rail type auxiliary supporting device for a front supporting leg of a bridge girder erection machine, which comprises the front supporting leg of the bridge girder erection machine and two supporting frames, wherein the supporting frames are arranged at the bottom of the front supporting leg of the bridge girder erection machine in a sliding manner, supporting cushion blocks are arranged at the bottoms of the supporting frames, and a driving mechanism for driving the supporting frames to slide is arranged on the front supporting leg of the bridge girder erection machine. The slide rail type auxiliary supporting device for the front supporting leg of the bridge girder erection machine is convenient to construct, high in construction efficiency and good in construction safety.

Description

Slide rail type auxiliary supporting device for front supporting leg of bridge girder erection machine

Technical Field

The utility model relates to the technical field of equipment special for erecting or assembling bridges, in particular to a slide rail type auxiliary supporting device for a front supporting leg of a bridge erecting machine.

Background

The existing bridge girder erection machine carries out box girder erection operation by adopting a mode of supporting by front, middle and rear supporting legs and synchronously feeding and falling beams by front and rear overhead cranes, and the front supporting legs are flexible legs which are mainly supported by the front and middle supporting legs in the beam falling process. As shown in figure 1, the main structure of the front support leg of the bridge girder erection machine is an upper support beam, a middle support beam and a lower support beam, the support beams are connected through support columns and inclined support rods, the front support leg of the bridge girder erection machine is supported on a bridge pier cushion stone, under a general condition, the stress supporting position of the lower support beam of the front support leg cannot coincide with the center of the bridge pier cushion stone, in order to ensure the balanced stress and the construction safety of the front support leg, the front support leg of the bridge girder erection machine can be provided with two cushion blocks for carrying out auxiliary support, but the weight of the cushion blocks is heavy, the construction area of the front support leg is limited, the difficulty is large when the front support is carried out, and the danger coefficient is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the slide rail type auxiliary supporting device for the front supporting leg of the bridge girder erection machine, which is convenient to construct, high in construction efficiency and good in construction safety.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a slide rail formula auxiliary stay device for landing leg before bridge girder erection machine, landing leg and two support frames before the bridge girder erection machine, the bottom of landing leg before the bridge girder erection machine is located in the support frame cunning, the bottom of support frame is equipped with the lip block, be equipped with the actuating mechanism who is used for driving the support frame to slide on the landing leg before the bridge girder erection machine.

As a further improvement of the above technical solution:

each support frame all is connected with actuating mechanism detachably.

The driving mechanism comprises a winch and two traction ropes, a pair of steering pulleys is respectively arranged at the two ends of the front supporting leg of the bridge girder erection machine, two coiling parts are arranged on a coiling drum of the winch, the middle parts of the traction ropes are respectively wound on the two coiling parts, one is that the two ends of the traction ropes are respectively connected with a support frame detachably and are respectively wound on one steering pulley arranged at the two ends of the front supporting leg of the bridge girder erection machine, and the other is that the two ends of the traction ropes are respectively connected with another support frame detachably and are respectively wound on another steering pulley arranged at the two ends of the front supporting leg of the bridge girder erection machine.

The both sides of support frame all are equipped with hitching part, the both ends of haulage rope all are equipped with the couple, the couple at haulage rope both ends is hung respectively and is established on the hitching part of corresponding support frame both sides.

The support frame includes horizontal support body, the both ends of horizontal support body respectively are equipped with vertical support body, vertical support body cunning is located on the landing leg before the bridge girder erection machine, the bottom of horizontal support body is located to the lip block.

The two ends of the front supporting leg of the bridge girder erection machine are respectively provided with a suspension, and the vertical frame body is arranged on the corresponding suspension in a sliding manner.

The top of vertical support body is equipped with the dovetail, the bottom of suspension is equipped with the track with dovetail sliding fit.

The end part of the transverse frame body is provided with a cross rod in a penetrating mode, the bottom of the vertical frame body is provided with a through hole, and the cross rod is arranged in the through hole in a penetrating mode.

The perforation is a square hole vertically arranged.

Both ends of the front supporting leg of the bridge girder erection machine are provided with stop blocks used for stopping the supporting frame.

Compared with the prior art, the utility model has the advantages that:

the utility model relates to a slide rail type auxiliary supporting device for a front supporting leg of a bridge girder erection machine, which comprises the front supporting leg of the bridge girder erection machine and two supporting frames, wherein the supporting frames are arranged at the bottom of the front supporting leg of the bridge girder erection machine in a sliding manner, supporting cushion blocks are arranged at the bottom of the supporting frames, and a driving mechanism for driving the supporting frames to slide is arranged on the front supporting leg of the bridge girder erection machine. This supplementary strutting arrangement can use actuating mechanism to remove support frame and supporting pad to the holding position to make supporting pad position control convenient, do not need artifical transport, very big improvement supporting pad's aversion efficiency, improved factor of safety, use manpower sparingly.

The utility model relates to a slide rail type auxiliary supporting device for a front supporting leg of a bridge girder erection machine, wherein each supporting frame is detachably connected with a driving mechanism. During the aversion, be connected the support frame that needs the aversion with actuating mechanism, demolish the connection of another support frame and actuating mechanism to realize making the effect of two support frames independent removal through an actuating mechanism, and realize the accurate aversion of support frame.

Drawings

Fig. 1 is a schematic structural diagram of the bridge girder erection machine.

Fig. 2 is a front view structural schematic diagram of the slide rail type auxiliary supporting device for the front support leg of the bridge girder erection machine.

Fig. 3 is a side view of the auxiliary support device for the front support leg of the bridge girder erection machine.

Fig. 4 is a schematic top view of the slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine.

Fig. 5 is an enlarged view at a in fig. 4.

Fig. 6 is a front view structural schematic diagram of the support frame of the slide rail type auxiliary support device for the front support leg of the bridge girder erection machine.

Fig. 7 is a side view of the supporting frame of the slide rail type auxiliary supporting device for the front supporting leg of the bridge girder erection machine.

The reference numerals in the figures denote:

1. front support legs of the bridge girder erection machine; 11. a suspension; 111. a track; 2. a support frame; 21. a transverse frame body; 211. a cross bar; 22. a vertical frame body; 221. a dovetail groove; 222. perforating; 3. supporting the cushion block; 4. a drive mechanism; 41. a winch; 411. a spool; 412. a crimping portion; 42. a hauling rope; 5. a diverting pulley; 6. a hanging part; 7. and a stop block.

Detailed Description

The utility model will be described in further detail below with reference to the drawings and specific examples.

Fig. 1 to 7 show an embodiment of a slide rail type auxiliary supporting device for a front support leg of a bridge girder erection machine, which comprises a front support leg 1 of the bridge girder erection machine and two supporting frames 2, wherein the supporting frames 2 are slidably arranged at the bottom of the front support leg 1 of the bridge girder erection machine, supporting cushion blocks 3 are arranged at the bottom of the supporting frames 2, and a driving mechanism 4 for driving the supporting frames 2 to slide is arranged on the front support leg 1 of the bridge girder erection machine. This supplementary strutting arrangement can use actuating mechanism 4 to remove support frame 2 and lip block 3 to the holding position to make lip block 3 position control convenient, do not need artifical transport, very big improvement lip block 3's shift efficiency, improved factor of safety, use manpower sparingly.

In this embodiment, each support frame 2 is detachably connected to the driving mechanism 4. During the aversion, be connected the support frame 2 that will shift with actuating mechanism 4, demolish being connected of another support frame 2 and actuating mechanism 4 to the realization makes the effect of two support frames 2 independent movements through an actuating mechanism 4, and realizes the accurate aversion of support frame 2.

In this embodiment, as shown in fig. 5, the driving mechanism 4 includes a winch 41 and two pulling ropes 42, a pair of diverting pulleys 5 are respectively disposed at two ends of the front leg 1 of the bridge erecting machine, two winding parts 412 are disposed on a winding reel 411 of the winch 41, middle parts of the two pulling ropes 42 are respectively wound on the two winding parts 412, two ends of one pulling rope 42 are detachably connected to one support frame 2 and are respectively wound on one diverting pulley 5 disposed at two ends of the front leg 1 of the bridge erecting machine, two ends of the other pulling rope 42 are detachably connected to the other support frame 2 and are respectively wound on the other diverting pulley 5 disposed at two ends of the front leg 1 of the bridge erecting machine. The winch 41 pulls the two support frames 2 to move through the two pulling ropes 42 respectively, and the structure is simple and the operation is convenient. By using the winch 41 to pull the traction rope 42 (steel wire rope), the traction rope 42 is turned by the turning pulley 5 to drive the support frame 2 to move left and right, so that the support frame 2 can quickly reach the support position. The winding reel 411 of the winding machine 41 is provided with a ring of check rings at the middle portion thereof to divide the winding reel 411 into two winding portions 412.

In this embodiment, as shown in fig. 6, the hanging portions 6 are disposed on two sides of the supporting frame 2, the hooks (not shown in the drawings) are disposed on two ends of the pulling rope 42, and the hooks on two ends of the pulling rope 42 are respectively hung on the hanging portions 6 on two sides of the corresponding supporting frame 2. The hauling cable 42 is hung at the hanging part 6 (such as a ring part) of the support frame 2 through a hook, so that the connection and the separation are convenient. In other embodiments, the support frame 2 is provided with a connecting wire, and the pulling rope 42 can be connected with the connecting wire through a rope clip.

In this embodiment, as shown in fig. 6 and 7, the supporting frame 2 includes a horizontal frame body 21, two ends of the horizontal frame body 21 are respectively provided with a vertical frame body 22, the vertical frame body 22 is slidably disposed on the front supporting leg 1 of the bridge girder erection machine, and the supporting cushion block 3 is disposed at the bottom of the horizontal frame body 21. Specifically, the hanging part 6 is provided on the vertical frame body 22. The two ends of the front support leg 1 of the bridge girder erection machine are respectively provided with a suspension 11, and the vertical frame body 22 is slidably arranged on the corresponding suspension 11. The top of the vertical frame 22 is provided with a dovetail groove 221, and the bottom of the suspension 11 is provided with a track 111 in sliding fit with the dovetail groove 221.

In this embodiment, as shown in fig. 6 and 7, a cross bar 211 is inserted into an end of the horizontal frame body 21, a through hole 222 is formed in a bottom of the vertical frame body 22, and the cross bar 211 is inserted into the through hole 222. As long as draw out horizontal pole 211, alright realize the split of horizontal support body 21 and vertical support body 22, make horizontal support body 21 and vertical support body 22 dismouting side convenient.

In this embodiment, as shown in fig. 6, the through hole 222 is a vertically disposed square hole, and provides a space for the cross bar 211 to move up and down, so that the transverse frame body 21 also has a space for moving up and down, which facilitates fine adjustment of the transverse frame body 21 in the height direction (combined with a locking mechanism or an insertion block capable of being inserted into the through hole 222).

In this embodiment, as shown in fig. 2, two ends of the front leg 1 of the bridge girder erection machine are provided with stoppers 7 for stopping the support frame 2. Preventing the support frame 2 from sliding off the rail 111.

The construction process comprises the following steps: bridge girder erection machine via hole when landing leg 1 is close to the stone before the bridge girder erection machine, constructor confirms the auxiliary stay position, be connected one side support frame 2 with corresponding haulage rope 42, correct operation hoist engine 41, hoist engine 41 rotates, drive haulage rope 42 operation, haulage rope 42 pulling vertical support body 22 slides along track 111, thereby drive cushion 3 through horizontal support body 21 and remove to the position that corresponds with the auxiliary stay point, opposite side cushion 3 need remove, go on with the same operation, but must loosen support frame 2 and corresponding haulage rope 42 of this one side. And after the supporting cushion blocks 3 are moved in place, the command bridge girder erection machine continues to complete the hole passing operation. Through this slide rail formula auxiliary stay device, with 3 high efficiency removal to the support position of lip block, satisfy 1 frame roof beam support requirements of landing leg before the bridge girder erection machine.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a slide rail formula auxiliary stay device for landing leg before bridging machine which characterized in that: landing leg (1) and two support frames (2) before the bridge girder erection machine, the bottom of landing leg (1) before the bridge girder erection machine is located in support frame (2) cunning, the bottom of support frame (2) is equipped with lip block (3), be equipped with on landing leg (1) before the bridge girder erection machine and be used for driving actuating mechanism (4) that support frame (2) slided.

2. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to claim 1, wherein: each support frame (2) is detachably connected with a driving mechanism (4).

3. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to claim 2, wherein: actuating mechanism (4) are including hoist engine (41) and two haulage rope (42), the both ends of landing leg (1) respectively are equipped with a pair of diverting pulley (5) before the bridge crane, be equipped with two coiling portion (412) on reel (411) of hoist engine (41), two the middle part of haulage rope (42) is respectively around locating on two coiling portion (412), one the both ends of haulage rope (42) all are connected with a support frame (2) detachably, and respectively around locating on a diverting pulley (5) at landing leg (1) both ends before the bridge crane, another the both ends of haulage rope (42) all are connected with another support frame (2) detachably, and respectively around locating on another diverting pulley (5) at landing leg (1) both ends before the bridge crane.

4. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to claim 3, wherein: both sides of support frame (2) all are equipped with hitching part (6), the both ends of haulage rope (42) all are equipped with the couple, the couple at haulage rope (42) both ends is hung respectively and is located on hitching part (6) of corresponding support frame (2) both sides.

5. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to any one of claims 1 to 4, wherein: the supporting frame (2) comprises a transverse frame body (21), vertical frame bodies (22) are arranged at two ends of the transverse frame body (21) respectively, the vertical frame bodies (22) are arranged on the front supporting legs (1) of the bridge girder erection machine in a sliding mode, and the supporting cushion blocks (3) are arranged at the bottom of the transverse frame body (21).

6. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to claim 5, wherein: the two ends of the front supporting leg (1) of the bridge girder erection machine are respectively provided with a suspension (11), and the vertical frame body (22) is arranged on the corresponding suspension (11) in a sliding manner.

7. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to claim 6, wherein: the top of vertical support body (22) is equipped with dovetail (221), the bottom of suspension (11) is equipped with track (111) with dovetail (221) sliding fit.

8. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to claim 5, wherein: the end part of the transverse frame body (21) is provided with a cross rod (211) in a penetrating mode, the bottom of the vertical frame body (22) is provided with a through hole (222), and the cross rod (211) is arranged in the through hole (222) in a penetrating mode.

9. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to claim 8, wherein: the through hole (222) is a square hole which is vertically arranged.

10. The slide rail type auxiliary supporting device for the front leg of the bridge girder erection machine according to any one of claims 1 to 4, wherein: both ends of the front supporting leg (1) of the bridge girder erection machine are provided with stop blocks (7) used for stopping the supporting frame (2).