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CN-121292306-B - Bridge hoisting device for narrow space

CN121292306BCN 121292306 BCN121292306 BCN 121292306BCN-121292306-B

Abstract

The invention discloses a bridge hoisting device for a narrow space, which belongs to the technical field of hoisting equipment and comprises a frame, a telescopic boom assembly, a first traction assembly and a second traction assembly, wherein the telescopic boom assembly, the first traction assembly and the second traction assembly are arranged above the frame, the first traction assembly comprises a first winch and a first steel wire rope, the second traction assembly comprises a second winch and a second steel wire rope, the first winch and the second winch are fixed on the frame, the first steel wire rope and the second steel wire rope are connected with the telescopic boom assembly through pulley assemblies and are used for hoisting in the vertical direction, the tail ends of the first steel wire rope and the second steel wire rope are connected with a placing plate, an adjusting pulley assembly is arranged on the placing plate, and the second steel wire rope realizes horizontal traction through the adjusting pulley assembly. The invention can meet the hoisting requirement of a narrow space, horizontally pull the bailey beam out of the bridge bottom for hoisting, and greatly improve the hoisting efficiency.

Inventors

  • LUO TAO
  • LI ZHENGHUI
  • ZENG LEI
  • WANG LI
  • SHEN JIAWANG
  • YAN JIAN
  • QIN MIN
  • BAN MEINA
  • YANG JIAN
  • GAO QIANG

Assignees

  • 国能(西藏)冷达发电有限公司
  • 中国电建集团北京勘测设计研究院有限公司

Dates

Publication Date
20260508
Application Date
20251127

Claims (9)

  1. 1. The bridge hoisting device for the narrow space is characterized by comprising a frame (1), and a telescopic boom assembly (2), a first traction assembly and a second traction assembly which are arranged above the frame (1); The first traction assembly comprises a first winch (35) and a first steel wire rope (31), the second traction assembly comprises a second winch (36) and a second steel wire rope (32), the first winch (35) and the second winch (36) are fixed on the frame (1), and the first steel wire rope (31) and the second steel wire rope (32) are connected with the telescopic boom assembly (2) through pulley assemblies and are used for hoisting in the vertical direction; the tail ends of the first steel wire rope (31) and the second steel wire rope (32) are connected with a placing plate (4), an adjusting pulley assembly (5) is arranged on the placing plate (4), and the second steel wire rope (32) realizes horizontal traction through the adjusting pulley assembly (5); The bottom of the side, close to the bridge, of the placing plate (4) is provided with a bolt assembly (43), and the placing plate (4) is detachably connected with the bridge supporting assembly through the bolt assembly (43).
  2. 2. The bridge crane apparatus for a small space according to claim 1, wherein the adjusting pulley assembly (5) comprises a mounting frame (51) and an upper pulley (52) and a lower pulley (53) which are disposed up and down in the mounting frame (51), the upper pulley (52) and the lower pulley (53) are freely rotated, and the upper pulley (52) is connected with the top of the mounting frame (51) through an adjusting screw (54).
  3. 3. The bridge crane device for a narrow space according to claim 1, wherein two groups of first branch steel wire ropes (33) are arranged between the first steel wire ropes (31) and the placing plate (4), one ends of the two groups of first branch steel wire ropes (33) are connected with the tail ends of the first steel wire ropes (31) through circular rings, and the other ends of the two groups of first branch steel wire ropes (33) are respectively connected with two ends of the placing plate (4) far away from one side of the bridge through hanging hooks.
  4. 4. The bridge crane device for a narrow space according to claim 1, wherein two groups of second branch steel wire ropes (34) are arranged between the second steel wire ropes (32) and the placing plate (4), one ends of the two groups of second branch steel wire ropes (34) are connected with the tail ends of the second steel wire ropes (32) through circular rings, and the other ends of the two groups of second branch steel wire ropes (34) are respectively detachably connected with two ends of the placing plate (4) close to one side of a bridge through hanging hooks.
  5. 5. The bridge crane device for a small space according to claim 4, wherein the second branch steel wire rope (34) is provided with a first hanging ring (41) at a position connected with the placing plate (4), the first hanging ring (41) is located at one side of the placing plate (4) close to the bridge, a groove is formed in the placing plate (4) corresponding to the first hanging ring (41), and the first hanging ring (41) is located in the groove.
  6. 6. The bridge crane device for small space according to claim 1, wherein the placing plate (4) is provided with second hanging rings (42) at two sides along the bridge direction.
  7. 7. The bridge crane apparatus for a small space according to claim 1, wherein the upper pulley (52) and the lower pulley (53) are provided with pulley grooves adapted to the second wire ropes (32).
  8. 8. The bridge crane device for small space according to claim 1, wherein the frame (1) is of a traction type structure, and the frame (1) is provided with a hydraulic support assembly.
  9. 9. The bridge crane device for a small space according to claim 1, wherein a control host is arranged on the frame (1), and the control host is electrically connected with the telescopic boom assembly (2), the first traction assembly and the second traction assembly.

Description

Bridge hoisting device for narrow space Technical Field The invention belongs to the technical field of hoisting equipment, and particularly relates to a bridge hoisting device for a narrow space. Background When the bridge is cast-in-situ, a bracket is required to be arranged below the concrete template to support the template, the bracket has various types, and the bailey beam is used as one of the main schemes of the bracket. The bailey beam is a truss beam assembled by a plurality of single bailey frame units, a plurality of bailey frames are fixed by bolts by taking a window as a connecting member, and the bailey beam is convenient to install and connect and has high integral rigidity strength, so that the bailey beam is widely applied to the field of construction. Before casting, the bailey frame hangs and fixes a plurality of groups of bailey beams on I-steel erected on the bridge pier through a crane, a template support and a casting template are fixedly installed above the bailey beams, in the casting process, the bailey beams transmit the gravity above to the lower Fang Gongzi steel, the upright post or the support frame to realize the stability of the casting of the concrete above, and after the casting is finished, the concrete is waited for solidification and hardening, and the template support are removed. As shown in fig. 1, a disc buckling frame is arranged below the bridge flange plate, a bailey beam is arranged below the disc buckling frame, steel pipe piles are arranged below the bailey beam, when the bridge flange plate needs to be dismantled, the bridge flange plate is firstly disassembled and then hoisted to the ground, then the bailey beam is hoisted to the ground, and finally the steel pipe piles are removed. Because the dish knot frame is located bridge flange board below, the dismantlement process needs the manual work to demolish then hoist to ground through the automobile crane respectively, but because the barrier of bridge flange board, the lifting hook of automobile crane is difficult to stretch to the dish knot frame and hoist on. Likewise, a concrete bridge body entity is formed above the bailey beam, the top space of the bailey beam is covered, the hoisting space is narrow, and the crane hook cannot be directly lifted from the vertical direction to detach the bailey beam. The traditional cast-in-situ box girder bailey girder support dismantling construction generally adopts manual cooperation with an automobile crane, the bailey girder is firstly transversely dragged below a cast-in-situ box girder flange, then the bailey girder is hung to the ground by the automobile crane, the whole hoisting process is complex, a plurality of automobile cranes are needed to cooperate, and the hoisting efficiency is low. The patent CN218090538U discloses a lifting device for a cast-in-situ box girder bailey beam support, which comprises a plurality of hanging brackets, wherein hooks capable of lifting are respectively arranged on the hanging brackets, the hanging brackets are respectively arranged on the upper end face of a box girder bailey piece and are connected into a row, a plurality of reserved holes are transversely arranged on the upper end face of the box girder bailey piece, each reserved hole penetrates through the whole box girder along the vertical direction, the reserved holes are transversely positioned on a straight line on the upper end face of the bailey piece, and the hanging brackets can vertically penetrate through the reserved holes on the bailey piece and extend into the bailey beam support at the bottom of the box girder, so that the bailey beam support is respectively hooked by the hooks on a steel wire rope. According to the scheme, the bailey beam supports below are hoisted through the reserved holes on the bailey pieces and the hanging frame, but due to the fact that the positions of the reserved holes are fixed, the bailey beam supports can only move up and down, the bailey beam supports are moved out of the lower portion of a bridge and are manually pushed out, meanwhile, after one set of bailey beam supports are hoisted, the hanging frame is required to be rearranged for next hoisting operation, the hoisting process is troublesome, meanwhile, the whole bridge strength is affected due to the fact that the number of the reserved holes is large, and meanwhile, the disc buckling frames cannot be hoisted at the positions of bridge flange plates through the reserved holes in the scheme. The automobile crane is moved to the bridge, and the problem that the beret beam is difficult to horizontally move out of the lower part of the bridge exists in the mode of lifting from top to bottom. Therefore, a group of lifting devices which can be suitable for a narrow space are needed, the disc buckle frame and the bailey beam can be conveniently lifted, and the lifting efficiency is improved. Disclosure of Invention The invention aims to provide a bridge hoisting device for a