A kind of embrace tile opening and closing device suitable for tower body of tower crane

Abstract

The utility model relates to a kind of embrace tile opening and closing device suitable for tower crane tower body, belong to tower crane technical field. Including hand wheel, drum, wire rope and embrace tile combination;The wire rope connects the drum with the embrace tile combination, by the hand wheel rotation to retract or release the wire rope with the drum, and then drive the embrace tile combination to rotate outward or inward, realize the opening or closure of the embrace tile combination.The hand wheel and the drum constitute labor-saving device, and the diameter ratio of the hand wheel and the drum is 1:5.The utility model has the beneficial effects that: overall structure form is simple, production and processing are convenient, and easy to realize.It is applicable to any tonnage tower crane with embrace tile.Installation and use are convenient, the contraction of wire rope is driven by hand wheel, the opening and closing of embrace tile are realized, easy to operate, time-saving and labor-saving.

Description

Technical Field

[0001] This utility model relates to a bearing plate opening and closing device applicable to the tower body of a tower crane, belonging to the technical field of tower cranes. Background Technology

[0002] The tower body is a crucial component of a tower crane, comprising standard sections, special sections, and supporting the connection of the jib, counterweight jib, slewing assembly, and other parts. For large-tonnage tower cranes, the connecting bearings on the tower body are too heavy for manual disassembly and installation, thus affecting the connection of standard sections and causing slow or halted tower crane installation. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a bearing plate opening and closing device applicable to tower cranes of any tonnage with bearing plates.

[0004] This utility model is achieved through the following technical solution: a bearing opening and closing device applicable to the tower body of a tower crane, comprising a handwheel, a drum, a wire rope, and a bearing assembly; the wire rope connects the drum and the bearing assembly, and the handwheel drives the drum to rotate to contract or release the wire rope, thereby driving the bearing assembly to rotate outward or inward, realizing the opening or closing of the bearing assembly.

[0005] The handwheel and the drum together form a labor-saving device, and the diameter ratio of the handwheel to the drum is 1:5.

[0006] The bearing assembly includes at least two bearings, each bearing is connected by a joint, and the wire rope connects the drum and the bearings to drive the bearings to rotate around the joint so that the holes of the bearings coincide with the connecting holes.

[0007] The bearing is a ring clamp composed of two arc-shaped steel plates, which is fastened to the outer wall of the tower cylinder by high-strength bolts.

[0008] The bearing includes bearing I and bearing II, which, when closed, fix the standard section.

[0009] It also includes a stop bar for limiting the rotation range of the bearing.

[0010] The closure of the bearing assembly is achieved by connecting the steel wire ropes in reverse.

[0011] The advantages of this invention are: simple overall structure, convenient production and processing, and easy implementation. It is suitable for tower cranes of any tonnage equipped with bearings. Installation and use are convenient; the opening and closing of the bearings is achieved by retracting the wire rope via a handwheel, making it easy to operate and saving time and labor. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the handwheel and drum of this utility model;

[0015] Figures 3 to 5 This is a schematic diagram of the opening of the bracket of this utility model;

[0016] In the diagram: 1. Handwheel; 2. Drum; 3. Wire rope; 4. Bearing I; 5. Bearing II; 6. Stop bar. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] like Figure 1 and Figure 2The device shown is a bearing plate opening and closing device for tower crane towers, including a handwheel 1, a drum 2, a wire rope 3, and a bearing plate assembly. The wire rope 3 connects the drum 2 and the bearing plate assembly. The handwheel 1 drives the drum 2 to rotate to retract or release the wire rope 3, thereby driving the bearing plate assembly to rotate outward or inward, thus realizing the opening or closing of the bearing plate assembly.

[0020] The handwheel 1 and the drum 2 constitute a labor-saving device, and the diameter ratio of the handwheel 1 to the drum 2 is 1:5.

[0021] The bearing assembly includes at least two bearings, each bearing is connected by a joint, and the wire rope 3 connects the drum 2 and the bearings to drive the bearings to rotate around the joint so that the holes of the bearings coincide with the connecting holes.

[0022] The bearing is a ring clamp composed of two arc-shaped steel plates, which is fastened to the outer wall of the tower cylinder by high-strength bolts.

[0023] The bearing includes bearing I4 and bearing II5, which, when closed, fix the standard section.

[0024] It also includes a stop lever 6, which is used to limit the rotation range of the bearing. The stop lever 6 is set at the extreme position of the bearing's rotation. When the bearing rotates outward to the open state, the stop lever will prevent the bearing from continuing to rotate, avoiding excessive rotation of the bearing that could cause structural damage or positional displacement. This ensures that the bearing is in the accurate position after opening, facilitating the connection operation of standard sections, and improving the safety and reliability of the device operation.

[0025] The closure of the bearing assembly is achieved by connecting the steel wire rope 3 in reverse.

[0026] The opening operation method of the bracket of this utility model:

[0027] When it is necessary to open the bearing plate of the standard section of the tower, the operator turns the handwheel 1, which drives the drum 2 to rotate synchronously.

[0028] The drum rotates and begins to retract the wire rope 3. The wire rope pulls the bearing plate I4, causing it to rotate outward around its connection joint with the tower body until the bearing plate I4 is fully open. Figure 3 As shown.

[0029] Next, connect drum 2 and bearing plate II5 via wire rope 3, and continue turning handwheel 1. Drum 2 retracts wire rope 3, causing bearing plate II5 to rotate around the joint until the bearing plate hole of bearing plate II5 aligns with the connection hole of the standard section of the tower body. Figure 4 As shown.

[0030] Retract the steel wire rope 3 again, pulling the clamp II 5 outward to open it. Figure 5 As shown.

[0031] Repeat the above steps 4 times, opening all the bearings of the standard section in sequence to make the standard section connectable.

[0032] Roofing closure operation procedure:

[0033] After the standard tower sections are connected, the closure operation of the bearing brackets is performed. By adjusting the connection direction of the wire rope 3, it is reversed to connect the drum 2 and the bearing bracket assembly. The operator rotates the handwheel 1 in the reverse direction, and the drum 2 rotates in the reverse direction to release the wire rope 3. Under the traction of the wire rope 3, the bearing brackets I 4 and II 5 rotate inward and gradually fit against the outer wall of the tower cylinder. After being tightened with high-strength bolts, the closure of the bearing brackets is completed, and the standard sections are firmly connected.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing plate opening and closing device applicable to the tower body of a tower crane, characterized in that: It includes a handwheel (1), a drum (2), a wire rope (3), and a bearing assembly; the wire rope (3) connects the drum (2) and the bearing assembly. The handwheel (1) drives the drum (2) to rotate to contract or release the wire rope (3), thereby driving the bearing assembly to rotate outward or inward, realizing the opening or closing of the bearing assembly.

2. The bearing plate opening and closing device applicable to tower crane tower body according to claim 1, characterized in that: The handwheel (1) and the drum (2) constitute a labor-saving device, and the diameter ratio of the handwheel (1) to the drum (2) is 1:

5.

3. The bearing plate opening and closing device applicable to tower crane tower body according to claim 1, characterized in that: The bearing assembly includes at least two bearings, each bearing is connected by a joint, and the wire rope (3) connects the drum (2) and the bearings to drive the bearings to rotate around the joint so that the holes of the bearings coincide with the connecting holes.

4. The bearing plate opening and closing device applicable to tower crane tower body according to claim 3, characterized in that: The bearing is a ring clamp composed of two arc-shaped steel plates, which is fastened to the outer wall of the tower cylinder by high-strength bolts.

5. The bearing plate opening and closing device applicable to tower crane tower body according to claim 3, characterized in that: The bearing includes bearing I (4) and bearing II (5), which fix the standard section after being closed.

6. The bearing plate opening and closing device applicable to tower crane tower body according to claim 3, characterized in that: It also includes a stop bar (6) for limiting the rotation range of the bearing.

7. The bearing plate opening and closing device applicable to tower crane tower body according to claim 1, characterized in that: The closure of the bearing assembly is achieved by connecting the steel wire rope (3) in reverse.

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