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CN-121992728-A - Device and method for dismantling cross-road-Beehive beam support

CN121992728ACN 121992728 ACN121992728 ACN 121992728ACN-121992728-A

Abstract

The invention relates to the technical field of bridge construction, in particular to a bridge support dismantling device and a bridge support dismantling method, comprising a bailey beam body, wherein a fork is arranged right below the middle part of the bailey beam body, the fork is arranged at the front part of a forklift, guide rib plates are fixed on the two surfaces of an extension section, and the edges of the guide rib plates are obliquely arranged; the folding type vertical beam type folding and unfolding device has the advantages that the upper ends of the vertical beams on the two sides of the heightening frame extend upwards and form the first extension section and the second extension section respectively by being provided with the heightening frame above the fork, the two sides of the first extension section are provided with the folding and unfolding type V-shaped limiting baffle frame, the middle parts of the two limiting baffle frames are respectively blocked on the two sides of one vertical beam on the bailey beam body, so that the position deviation of the bailey beam body along the length direction of the body is avoided, and the potential safety hazard is reduced.

Inventors

  • LI YUNQI
  • LIU MAN
  • CAO ZHENGWANG
  • HU SONGTAO
  • MEI CHANGAN
  • WANG YU
  • YE YUFENG
  • TAO JINSONG
  • ZHAO LONGFEI
  • GONG YAN

Assignees

  • 中铁上海工程局集团第三工程有限公司
  • 中铁上海工程局集团有限公司

Dates

Publication Date
20260508
Application Date
20260325

Claims (10)

  1. 1. The device for dismantling the cross-rabeproof beam bracket is characterized by comprising the following components: the novel lifting forklift comprises a bailey beam body (1), a fork (2) is arranged right below the middle part of the bailey beam body (1), the fork (2) is arranged at the front part of the forklift, an overhead frame (3) is arranged above the fork (2), the upper ends of vertical beams on two sides of the overhead frame (3) are upwards extended, an extension section I (31) and an extension section II (32) are respectively formed, the length of the extension section I (31) is greater than that of the extension section II (32), the extension section I (31) is attached to the side surface of the bailey beam body (1), a guide rib plate (321) is fixed on the surface of the extension section II (32), and the edges of the guide rib plates (321) are obliquely arranged; the limiting baffle frames (5), the limiting baffle frames (5) are arranged to be in a V shape capable of being folded and deformed, the limiting baffle frames (5) are arranged to be two, and are respectively arranged on two sides of one extending section I (31), and the middle parts of the two limiting baffle frames (5) are respectively baffle on two sides of one vertical beam on the Bailey beam body (1).
  2. 2. The device for dismantling the cross-road beret beam support according to claim 1, wherein two symmetrically-distributed square channel steel (33) are fixedly arranged at the bottom of the heightening frame (3), and two forks (2) are arranged in a group and respectively penetrate through the two square channel steel (33) in a movable mode.
  3. 3. The device for removing the cross-road bailey beam support according to claim 2, wherein a rotating shaft (51) is arranged in the middle of the limiting baffle frame (5), shaft rods (4) are arranged at the upper end and the lower end of the limiting baffle frame (5), two ends of the shaft rods (4) respectively penetrate through the two limiting baffle frames (5) in a movable mode, and limiting stop blocks (41) which are blocked on the side faces of the limiting baffle frames (5) are fixed at two ends of the shaft rods (4).
  4. 4. The device for removing the cross-road beret beam support of claim 3, wherein the side surface of one extension section I (31) is provided with two groups of waist holes (311) in a penetrating manner, the waist holes (311) are arranged along the length direction of the extension section I (31), and the two shaft rods (4) respectively penetrate through the two waist holes (311) in a movable manner.
  5. 5. The device for removing the cross-road beret beam support of claim 4, wherein the cross section of the first extending section (31) is shaped like 匚, a sleeve (42) is movably sleeved on the outer side of the middle part of the shaft lever (4), the sleeve (42) is positioned in the inner cavity of the first extending section (31), and a tension spring (43) is fixedly connected between the two sleeves (42).
  6. 6. The device for removing the cross-road bailey beam support according to claim 5, wherein a locking frame (6) is arranged at the front end of the fork (2), the locking frame (6) is arranged in a shape of a Chinese character 'kou', and is movably sleeved outside the fork (2), the locking frame (6) is blocked at one end of a square channel steel (33), a stud (61) is arranged on the upper portion of the locking frame (6) in a penetrating manner through threads, a knob (63) and a pressing plate (62) are respectively fixed at the upper end and the lower end of the stud (61), and a handle hole (64) is horizontally formed in the middle of the knob (63).
  7. 7. The device for dismantling a cross-road beret beam support according to claim 6, wherein anti-falling beams (7) are arranged below two ends of the beret beam body (1), a plurality of steel pipe piles (71) which are distributed at equal intervals are fixed on the lower surface of each anti-falling beam (7), the steel pipe piles (71) are fixedly installed on the ground, and a scissor brace (72) is fixedly installed between every two adjacent steel pipe piles (71).
  8. 8. A method for dismantling a cross-road-Beehive beam support is characterized by comprising the following steps of: Step one, mounting a heightening frame (3) above a fork (2); Step two, starting the forklift, enabling the fork (2) to ascend and lifting the bailey beam body (1) by means of the heightening frame (3); Step three, the forklift moves, and the bailey beam body (1) is translated into a working area of an external crane; step four, hanging off the bailey beam body (1); and fifthly, repeating the second to fourth steps until all the bailey beam bodies (1) are completely dismantled.
  9. 9. The method for removing the cross-road bailey beam bracket according to claim 8, wherein in the first step, the fork (2) is inserted into the inner cavity of the square channel steel (33) until the front end of the fork (2) extends to the outer side of the square channel steel (33), then the locking frame (6) is sleeved at the front end of the fork (2), the locking frame (6) is attached to the raised frame (3), and the knob (63) is screwed until the hold-down plate (62) holds down and locks the fork (2).
  10. 10. The method for removing the cross-road bailey beam support according to claim 9, wherein in the second step, the forklift is located under the middle of the bailey beam body (1), and in the process that the overhead boom (3) moves upwards and approaches the bailey beam body (1), the limiting retainer (5) is extruded by the bailey beam body (1) to be automatically unfolded and deformed until the limiting retainer (5) completely passes through a cross beam at the bottom of the bailey beam body (1), and then the limiting retainer (5) is automatically folded and deformed under the action of the tension spring (43) to be restored.

Description

Device and method for dismantling cross-road-Beehive beam support Technical Field The invention relates to the technical field of bridge construction, in particular to a bridge support dismantling device and a bridge support dismantling method. Background The Bailey beam support has the advantages of large bearing capacity, flexible assembly, repeated use and the like, and is widely applied to complex conditions such as bridge cast-in-situ construction and pipeline erection which span obstacles such as roads and the like and heavy and difficult engineering, and the Bailey beam support above the roads needs to be safely, quickly and efficiently dismantled after construction is completed, and the Bailey beam support is restored to the original state. In the prior art, the invention of China with the bulletin number of CN117966624A discloses an automatic bailey beam dismantling tool, which is provided with two bailey beam dismantling trolleys for transporting and lifting the bailey beams to be dismantled, and an electric power digital control system is arranged for realizing remote instruction control on the two bailey beam dismantling trolleys so as to synchronously move and lift the bailey beams to be dismantled. However, at present, the traditional dismantling device is difficult to carry out quick and safe locking on the bailey beam to be dismantled, so that the bailey beam is difficult to keep a balanced stable state and synchronously move at a uniform speed in the horizontal direction all the time in the lifting and moving process, and the bridge-crossing dismantling limited conditions are multiple, the difficulty is high, the work efficiency is low, the dismantling process has a large potential safety hazard, and the safety accident is induced. Therefore, the invention provides a device and a method for dismantling a cross-road beret beam bracket, which are used for solving the problems. Disclosure of Invention The invention aims to provide a device and a method for dismantling a cross-road bailey beam bracket, which are used for solving the problems that the bailey beam is easy to displace, unstably overturn and occupy a long construction duration time, the traffic of vehicles is seriously influenced and the like and has larger potential safety hazard when being lifted and moved in the prior art. In order to achieve the purpose, the invention provides the following technical scheme that the device for dismantling the cross-Lee beam bracket comprises the following components: The novel lifting fork comprises a Bailey beam body, a fork is arranged right below the middle part of the Bailey beam body, the fork is arranged at the front part of a forklift, a heightening frame is arranged above the fork, the upper ends of vertical beams at two sides of the heightening frame extend upwards to form an extension section I and an extension section II respectively, the length of the extension section I is longer than that of the extension section II, the extension section I is attached to the side surface of the Bailey beam body, a guide rib plate is fixed on the surface of the extension section II, and the edges of the guide rib plates are obliquely arranged; The limiting baffle frame is arranged in a V shape capable of being folded and deformed, two limiting baffle frames are arranged on two sides of one extending section I respectively, and the middle parts of the two limiting baffle frames are respectively blocked on two sides of one vertical beam on the Bailey beam body. Preferably, the bottom of the heightening frame is fixedly provided with two symmetrically-distributed square channel steel, and the two forks are arranged into a group and respectively movably penetrate through the two square channel steel. Preferably, the middle part of spacing frame that keeps off is provided with the axis of rotation, the upper and lower both ends of spacing frame that keeps off all are provided with the axostylus axostyle, and the both ends of axostylus axostyle are respectively movable to run through two spacing frames that keep off, the both ends of axostylus axostyle all are fixed with the limit stop who keeps off in spacing frame side. Preferably, a waist hole is formed in a side surface of the first extension section in a penetrating manner, two groups of waist holes are formed in the waist hole along the length direction of the first extension section, and the two shaft rods respectively penetrate through the two waist holes in a movable manner. Preferably, the cross section of the first extension section is in a '匚' shape, a sleeve is movably sleeved on the outer side of the middle part of the shaft rod, the sleeve is positioned in an inner cavity of the first extension section, and a tension spring is fixedly connected between the two sleeves. Preferably, the front end of fork is provided with the locking frame, the locking frame sets up to "mouthful" font, and the movable sleeve locates the fork outside, the loc