Large-span efficient concrete hoisting device

Abstract

The utility model discloses a large-span efficient concrete hoisting device, which relates to the technical field of concrete pouring and comprises a main body structure of a gantry crane, a plurality of parallel guide rails fixedly connected onto a main beam, a reciprocating movable trolley arranged on each guide rail, and a hoisting bucket cover fixedly connected with the lower part of each trolley, the lower portion of each trolley is connected with a lifting hopper in a hanging mode, and the outer diameter of the lifting hopper is smaller than the inner diameter of the lifting hopper cover. According to the utility model, the concrete transportation requirement of any pouring position of the dam can be met; the movable trolley on the main beam guide rail can effectively improve the transportation stability of the hoisting bucket; the multiple hoisting buckets transport concrete independently, and the concrete transport efficiency is improved by times; the hoisting buckets are arranged in the hoisting bucket cover and then horizontally move, so that collision between the hoisting buckets and mutual winding of hoisting bucket traction steel wire ropes can be effectively avoided, and the transportation stability and safety are improved.

Description

Technical Field:

[0001] The utility model relates to the technical field of concrete pouring, in particular to a long-span and high-efficiency concrete hoisting device. Background Art:

[0002] The main body of the dam built in water conservancy projects mostly adopts a concrete structure. During the construction of the dam, a large amount of concrete needs to be transported over a long span. The capacity of the concrete transportation system directly affects the pouring progress of the dam concrete. Traditional concrete transportation equipment such as cable cranes, gantry cranes, and tower cranes transport concrete through a single hopper, with low construction efficiency. And the conveyor belt type transportation device needs to be transferred multiple times to be transported to the designated position, with low construction efficiency.

[0003] In the prior art, the pouring device spanning both banks of a river drives a material transporting cylinder through a traction steel cable erected on the top of a fixed support frame erected on both banks of the river to realize the concrete transportation across the dam. The traction steel cable spanning both banks of the river is relatively long, and the material transporting cylinder will shake to varying degrees during the transportation process. When there are multiple material transporting cylinders, the traction steel cables of the material transporting cylinders are prone to entanglement with each other, affecting the pouring efficiency and posing a safety hazard; when the pouring position of the dam changes along the river direction, the fixed support frame needs to be removed and reinstalled, but this fixed support frame has a large structure, and the disassembly and installation are time-consuming, affecting the construction efficiency. Content of the Utility Model:

[0004] The purpose of the utility model is to provide a long-span and high-efficiency concrete hoisting device, so as to solve the problems proposed in the above background art that during construction, it is impossible to switch between timely movement and positioning according to location changes, affecting normal pouring operations, and at the same time, there will be varying degrees of shaking, affecting the pouring efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A long-span and high-efficiency concrete hoisting device, including the main structure of a gantry crane, characterized in that a plurality of parallel arranged guide rails are fixedly connected to the main beam, each of the guide rails is arranged along the length direction of the main beam, each of the guide rails is provided with a reciprocating displacement movable trolley, a hopper cover is fixedly connected to the lower part of each of the trolleys, the distance between the centers of two adjacent guide rails is greater than the outer diameter of the hopper cover, a hopper is hung under each of the trolleys, the outer diameter of the hopper is smaller than the inner diameter of the hopper cover, and the hopper can be sleeved in the hopper cover.

[0006] Further, anti-collision rubber is provided at the lower part of each of the hopper covers.

[0007] Furthermore, the hopper is cylindrical in shape, and a discharge funnel is provided at the lower part. A baffle is movably provided at the bottom of the discharge funnel of the hopper. One side of the baffle is hinged to the hopper, and the other side of the baffle is clamped to the hopper. A hopper support frame is provided outside the discharge funnel of the hopper, and the hopper support frame surrounds the discharge funnel of the hopper.

[0008] The beneficial effects of the present utility model are as follows: The present utility model can meet the concrete transportation requirements at any pouring position of the dam; the movable trolley on the main beam guide rail can effectively improve the stability of hopper transportation; multiple hoppers transport concrete separately, doubling the concrete transportation efficiency; placing the hopper in the hopper cover and then moving it horizontally can effectively avoid the collision between hoppers and the mutual entanglement of the hopper traction steel wires, improving the transportation stability and safety. Description of the drawings:

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0010] Figure 1 It is a schematic structural diagram of the present utility model;

[0011] Figure 2 It is a top view of the present utility model;

[0012] Figure 3 It is an enlarged view of part A of the present utility model;

[0013] Figure 4 It is an enlarged view of part B of the present utility model;

[0014] Figure 5 It is an enlarged view of part C of the present utility model.

[0015] In the figure: traveling track 1, ground anchor 2, support frame base 3, winch 4, support frame 5, main beam 6, guide rail 7, trolley 8, first driving motor 9, fixed pulley 10, hopper cover 11, anti-collision rubber 12, second driving motor 13, hopper 14, baffle 15, hopper support frame 16. Specific implementation manners:

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Combination Figures 1-5 As shown, the utility model is a large-span efficient concrete hoisting device, comprising a pair of walking tracks 1 laid along both sides of the river, each walking track 1 is fixedly connected to the ground through a ground anchor 2, and the top surface of each pair of walking tracks 1 is rollingly connected to a support frame base 3, and each support frame base 3 is transmission-connected to a winch 4 through a wire rope in the direction of dam construction, and the top surface of each support frame base 3 is fixedly connected to a support frame 5;

[0018] A main beam 6 spanning both sides of the river is fixedly connected to the top surface of the two support frames 5, and a plurality of parallel guide rails 7 are fixedly connected to the main beam 6, each guide rail 7 is arranged along the length direction of the main beam 6, and a movable trolley 8 for reciprocating displacement is provided on each guide rail 7, and both ends of each trolley 8 are respectively connected to a first drive motor 9 fixed to one side of the main beam 6 for transmission, so that multiple trolleys 8 can run simultaneously without interfering with each other, a fixed pulley 10 is provided on one side of the top of each trolley 8, and a bucket cover 11 is fixedly connected to the lower part of each trolley 8, and an anti-collision rubber 12 is provided at the lower part of the bucket cover 11, and the distance between the centers of two adjacent guide rails 7 is greater than the outer diameter of the bucket cover 11, so as to ensure that there is no collision between them during operation;

[0019] A second drive motor 13 is fixedly connected to the main beam 6 on one side away from the fixed pulley 10 at the top of each trolley 8. Each second drive motor 13 is on the relatively outer side of a first drive motor 9 along the length direction of the main beam 6. Each second drive motor 13 is connected to a bucket 14 through a steel wire rope bypassing the fixed pulley 10 and passing through the bucket cover 11 to achieve the rise and fall of the bucket 14. The outer diameter of the bucket 14 is smaller than the inner diameter of the bucket cover 11. The bucket 14 is placed in the bucket cover 11 and then moved horizontally to prevent the bucket 14 from swinging and the steel wire ropes between multiple buckets 14 from interlocking. The anti-collision rubber 12 at the bottom of the bucket cover 11 can effectively alleviate the collision between the bucket 14 and the bucket cover 11. The upper part of the bucket 14 is cylindrical, and the lower part is provided with a discharging funnel. A baffle 15 is movably provided at the bottom of the discharging funnel of the bucket 14. One side of the baffle 15 is hinged to the bucket 14, and the other side of the baffle 15 is connected to the bucket 14 through a buckle. A bucket support frame 16 is provided on the outside of the discharging funnel of the bucket 14. The bucket support frame 16 surrounds the discharging funnel of the bucket 14. The bucket support frame 16 supports the bucket when the bucket descends to the ground to receive materials to prevent the baffle 15 from being crushed.

[0020] Working principle:

[0021] During construction, the main beam 6 is driven above the pre-casting position by the hoist 4. The second driving motor 13 drives the hopper 14 to rise into the hopper cover 11. The first driving motor 9 drives the trolley 8 to one side of the main beam. The second driving motor 13 drives the hopper 14 to descend to the ground. After the hopper 14 finishes receiving materials, the second driving motor 13 drives the hopper 14 to rise into the hopper cover 11. The first driving motor 9 drives the trolley 8 above the pre-casting position. The second driving motor 13 drives the hopper 14 to descend to the pre-casting position. The bottom baffle 15 of the hopper 14 is opened for discharging materials. After the discharging is completed, the bottom baffle 15 of the hopper 14 is tightened. The second driving motor 13 drives the hopper 14 to rise into the hopper cover 11 and repeats the above steps for receiving materials. When the concrete transportation in the area below the main beam 6 is completed, the main beam 6 is driven to the next casting position, and the above steps are repeated for concrete transportation until all the concrete required for the dam is transported.

[0022] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A large-span and highly efficient concrete hoisting device, including the main structure of a gantry crane, characterized in that, A plurality of parallel arranged guide rails are fixedly connected to the main beam. Each of the guide rails is arranged along the length direction of the main beam. Each of the guide rails is provided with a movable trolley that reciprocates. A hopper cover is fixedly connected to the lower part of each of the trolleys. The distance between the centers of two adjacent guide rails is greater than the outer diameter of the hopper cover. A hopper is hung under each of the trolleys. The outer diameter of the hopper is smaller than the inner diameter of the hopper cover. The hopper can be sleeved in the hopper cover.

2. The large-span and high-efficiency concrete hoisting device according to claim 1, wherein, An anti-collision rubber is provided at the lower part of each of the hopper covers.

3. The large-span and high-efficiency concrete hoisting device according to claim 1, wherein, The hopper is in a cylindrical shape and is provided with a discharge funnel at the lower part. A baffle is movably arranged at the bottom of the discharge funnel of the hopper. One side of the baffle is hinged to the hopper, and the other side of the baffle is clamped to the hopper. A hopper support frame is arranged outside the discharge funnel of the hopper, and the hopper support frame surrounds the discharge funnel of the hopper.

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