A tower crane main hoist wire rope force unloading bracket

Abstract

The utility model relates to the technical field of wire rope traction, and specifically to a main hoist wire rope unloading bracket of a tower crane, including a bracket assembly and a hoist assembly, the bracket assembly includes a fixed bracket and a rotating bracket, the fixed bracket is trapezoidal and the middle part is connected by square steel, the rotating bracket includes a mounting plate, the rotating bracket is threadedly connected to the upper end face of the fixed bracket through the mounting plate, the upper end face of the mounting plate is vertically fixedly connected with a rotating connecting plate, and the middle part of the rotating connecting plate is connected with a rotating component; the hoist assembly includes a hoist drum and a mounting frame, the mounting frame is U-shaped, the hoist drum is rotatably connected to the inside of the mounting frame through a rotating shaft; the rear end face of the mounting frame is fixedly connected with a mounting flange, and the mounting frame is threadedly connected to the rotating component through the mounting flange. The utility model adds a rotating component on the basis of an ordinary bracket, and when the wire rope on the hoist drum still has residual torsional stress, the hoist assembly will be driven to rotate around the rotating component to eliminate the residual torsional stress, which greatly eliminates the safety problems caused by torsional stress, has a simple structure, and is easy to use.

Description

Technical Field

[0001] The utility model relates to the technical field of wire rope traction, in particular to a main hoisting wire rope force unloading bracket of a tower crane. Background Art

[0002] The steel wire rope is made of at least two layers of steel wires twisted around a central steel wire or multiple strands twisted around a rope core. Since the steel wire rope is twisted from multiple strands of steel wire rope, there is residual torsional stress. If the stress is not unloaded during installation, the steel wire rope will twist in the air during the operation of the tower crane in the later stage. In severe cases, it may cause the hook to flip over, affecting the lifting. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a tower crane main hoisting wire rope unloading bracket, which can effectively solve the problems mentioned in the background technology.

[0004] The utility model adopts a technical solution: a tower crane main hoist wire rope unloading bracket, including a bracket assembly and a hoist assembly, the bracket assembly includes a fixed bracket and a rotating bracket, the fixed bracket is trapezoidal and the middle part is connected with square steel, the rotating bracket includes a mounting plate, the rotating bracket is threadedly connected to the upper end surface of the fixed bracket through the mounting plate, the upper end surface of the mounting plate is vertically fixedly connected with a rotating connecting plate, and the middle part of the rotating connecting plate is connected with a rotating component;

[0005] The hoist assembly includes a hoist drum and a mounting frame, the mounting frame is U-shaped, and the hoist drum is rotatably connected to the inside of the mounting frame through a rotating shaft;

[0006] The rear end surface of the mounting frame is fixedly connected with a mounting flange, and the mounting frame is threadedly connected to the rotating component through the mounting flange.

[0007] Furthermore, the front end surface and the rear end surface of the rotating connecting plate are both fixedly connected to two reinforcing ribs, and the reinforcing ribs are fixedly connected to the mounting plate.

[0008] Furthermore, the rotating component includes a fixed part and a rotating part, the fixed part is fixedly connected to the middle part of the rotating connecting plate, the rotating part is rotatably connected to the fixed part, and the mounting flange is threadedly connected to the rotating part.

[0009] Furthermore, the interior of the fixed bracket is a hollow structure, the bottom of the fixed bracket is fixedly connected to a base plate, and a counterweight is arranged on the base plate.

[0010] Furthermore, universal wheels and foot cups are installed on the four corners of the base plate, and the foot cups are height-adjustable foot cups.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model adds a rotating component on the basis of an ordinary bracket, and when there is residual torsional stress on the wire rope on the winch drum, the winch assembly will be driven to rotate around the rotating component to eliminate the residual torsional stress, thereby greatly eliminating the safety problems caused by torsional stress, and the utility model has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 is a schematic diagram of the structure of the bracket assembly;

[0014] Figure 3 A schematic diagram of the structure of the mounting frame.

[0015] In the figure: 1. bracket assembly; 11. fixed bracket; 111. bottom plate; 12. rotating bracket; 121. mounting plate; 122. rotating connecting plate; 123. rotating component; 1231. fixed part; 1232. rotating part; 124. reinforcing rib; 2. hoisting assembly; 21. hoisting drum; 22. mounting frame; 221. mounting flange; 23. rotating shaft; 3. counterweight; 4. universal wheel; 5. foot cup. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0018] like Figure 1-3 As shown, a main hoisting wire rope unloading support for a tower crane includes a support assembly 1 and a hoisting assembly 2, wherein the support assembly 1 includes a fixed support 11 and a rotating support 12, wherein the fixed support 11 is trapezoidal and the middle part is connected with a square steel, and the rotating support 12 includes a mounting plate 121, and the rotating support 12 is threadedly connected to the upper end surface of the fixed support 11 through the mounting plate 121, and a rotating connecting plate 122 is vertically fixedly connected to the upper end surface of the mounting plate 121, and a rotating component 123 is connected to the middle part of the rotating connecting plate 122;

[0019] The hoist assembly 2 includes a hoist drum 21 and a mounting frame 22. The mounting frame 22 is U-shaped. The hoist drum 21 is rotatably connected to the inside of the mounting frame 22 via a rotating shaft 23.

[0020] A mounting flange 221 is fixedly connected to the rear end surface of the mounting bracket 22 , and the mounting bracket 22 is threadedly connected to the rotating component 123 via the mounting flange 221 .

[0021] The front end surface and the rear end surface of the rotating connecting plate 122 are both fixedly connected to two reinforcing ribs 124 . The reinforcing ribs 124 are fixedly connected to the mounting plate 121 to strengthen the strength between the connecting plate 122 and the mounting plate 121 .

[0022] The rotating part 123 includes a fixed part 1231 and a rotating part 1232. The fixed part 1231 is fixedly connected to the middle part of the rotating connecting plate 122, and the rotating part 1232 is rotatably connected to the fixed part 1231. The mounting flange 221 is threadedly connected to the rotating part 1232, so that the winch assembly 2 can rotate around the rotating part 1232. When there is residual torsional stress on the wire rope on the winch drum 21, the winch assembly 2 will be driven to rotate around the rotating part 123 to eliminate the residual torsional stress.

[0023] The interior of the fixed bracket 11 is a hollow structure, and the bottom of the fixed bracket 11 is fixedly connected to a base plate 111, on which a counterweight block 3 is arranged. The counterweight block 3 can prevent the device from moving when subjected to a large external force, thereby ensuring stability and safety during operation.

[0024] Universal wheels 4 and foot cups 5 are installed on the four corners of the base plate 111. The foot cups 5 are height-adjustable foot cups 5. When the device needs to be moved, it only needs to fold up the foot cups 5 so that the universal wheels 4 can touch the ground and move; when it moves to the working position, the foot cups 5 are put down, and the device can be stably placed in the working position.

[0025] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tower crane main hoist wire rope unloading bracket, comprising a bracket assembly and a hoist assembly, characterized in that: The bracket assembly includes a fixed bracket and a rotating bracket, the fixed bracket is trapezoidal and the middle part is connected by square steel, the rotating bracket includes a mounting plate, the rotating bracket is threadedly connected to the upper end surface of the fixed bracket through the mounting plate, the upper end surface of the mounting plate is vertically fixedly connected with a rotating connecting plate, and the middle part of the rotating connecting plate is connected with a rotating component; The hoist assembly includes a hoist drum and a mounting frame, the mounting frame is U-shaped, and the hoist drum is rotatably connected to the inside of the mounting frame through a rotating shaft; The rear end surface of the mounting frame is fixedly connected with a mounting flange, and the mounting frame is threadedly connected to the rotating component through the mounting flange.

2. A tower crane main hoisting wire rope force unloading bracket according to claim 1, characterized in that: The front end surface and the rear end surface of the rotating connecting plate are both fixedly connected with two reinforcing ribs, and the reinforcing ribs are fixedly connected with the mounting plate.

3. The main hoisting wire rope force unloading bracket of a tower crane according to claim 1, characterized in that: The rotating component comprises a fixed part and a rotating part, the fixed part is fixedly connected to the middle part of the rotating connecting plate, the rotating part is rotatably connected to the fixed part, and the mounting flange is threadedly connected to the rotating part.

4. The main hoisting wire rope force unloading bracket of a tower crane according to claim 1, characterized in that: The interior of the fixed bracket is a hollow structure, the bottom of the fixed bracket is fixedly connected to a bottom plate, and a counterweight block is arranged on the bottom plate.

5. A tower crane main hoisting wire rope force unloading bracket according to claim 4, characterized in that: Universal wheels and foot cups are installed on the four corners of the bottom plate, and the foot cups are height-adjustable foot cups.

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