Steel wire rope traction device of tower crane

Abstract

The utility model relates to the technical field of cranes, in particular to a tower crane steel wire rope traction device which comprises a bottom supporting assembly, the top of the bottom supporting assembly is fixedly connected with a lifting assembly, the top of the lifting assembly is provided with a top installation assembly, and the interior of the top installation assembly is fixedly connected with a traction assembly. The first motor is used for driving the moving block to move on the lead screw in a threaded mode, so that the sliding block can slide on the sliding rail, the steel wire rope wheel is driven to stably move at the bottom of the swing arm, and the moving mode has the advantages of self-locking performance, synchronism, precision positioning, speed control and thrust control. The scissor-fork type platform lifting structure composed of the first support, the second support and the third support is controlled by stretching out and drawing back of the telescopic rod to conduct lifting, high stability and high bearing capacity are achieved, the aerial work range is larger, stability is kept in the lifting process, shaking and rollover are not prone to occurring, and operation safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a steel wire rope traction device for a tower crane. Background Art

[0002] Tower crane, also known as tower crane, originated in Western Europe. It refers to a rotating crane with a boom mounted on the top of a tall tower. Tower crane consists of three parts: metal structure, working mechanism and electrical system. The metal structure includes the tower, boom and base. The working mechanism has four parts: lifting, luffing, rotation and travel. The electrical system includes motors, controllers, distribution cabinets, connecting lines, signals and lighting devices. Tower cranes have a large operating space and are mainly used for vertical and horizontal transportation of materials and installation of building components in house construction.

[0003] Most traditional tower cranes use pulleys for traction. If the pulley rim is damaged or the rope groove wear exceeds 25% of the wire rope diameter, it will cause the pulley to be damaged or the wire rope to be out of the groove, abnormally worn, or even broken. In addition, when operating the tower crane to work, manual climbing is required to reach the cab, which undoubtedly increases the risk factor for the operator and reduces the working efficiency of the tower crane. Therefore, a tower crane wire rope traction device is needed to improve the above problems. Utility Model Content

[0004] In order to solve the problem that most traditional tower cranes use pulleys for traction, the pulley rim is damaged or the rope groove wear exceeds 25% of the wire rope diameter, resulting in pulley damage or wire rope derailment, abnormal wear, or even breakage. In addition, when operating the tower crane to work, manual climbing is required to reach the cab, which undoubtedly increases the risk factor for the operator and reduces the working efficiency of the tower crane. Therefore, a tower crane wire rope traction device is needed to improve the above problems. The purpose of the utility model is to provide a tower crane wire rope traction device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wire rope traction device for a tower crane comprises a bottom support assembly, a lifting assembly is fixedly connected to the top of the bottom support assembly, a top mounting assembly is arranged on the top of the lifting assembly, and a traction assembly is fixedly connected inside the top mounting assembly;

[0007] The lifting assembly includes a bottom plate, an air pump is installed on the top of the bottom plate, an air delivery pipe is fixedly connected to the side of the air pump, a telescopic rod is installed on the top of the bottom plate, a first bracket is fixedly connected to the top of the bottom plate, a second bracket is fixedly connected to the top of the first bracket, a third bracket is fixedly connected to the top of the second bracket, and a rotating disk is fixedly connected to the top of the third bracket;

[0008] The traction assembly includes a supporting plate, a slide rail is fixedly connected to the bottom of the supporting plate, a slider is slidably connected to the bottom of the slide rail, a first motor is installed at the bottom of the supporting plate, a screw rod is fixedly connected to the output end of the first motor, a moving block is provided at the bottom of the screw rod, a supporting plate is fixedly connected to the moving block and the bottom of the slider, a mounting frame is fixedly connected to the bottom of the supporting plate, a wire rope pulley is provided inside the mounting frame, a second motor is installed on the side of the mounting frame, a wire rope body is fixedly connected to the bottom of the wire rope pulley, and a hook is fixedly connected to the bottom of the wire rope body.

[0009] As a preferred solution of the utility model, two telescopic rods are provided, and the output ends of the two telescopic rods are fixedly connected to the connection between the second bracket and the third bracket.

[0010] As a preferred solution of the utility model, a limiter is fixedly connected to the bottom of the slide rail, two limiters are provided, and the screw rod is arranged inside the moving block, and the screw rod is threadedly connected to the moving block.

[0011] As a preferred solution of the utility model, two slide rails are provided, four slide blocks are provided, and a brake box is fixedly connected to the bottom of the second motor.

[0012] As a preferred solution of the utility model, the top mounting assembly includes a control room, the top of the control room is fixedly connected to a first fixing frame, and the side of the first fixing frame is fixedly connected to a swing arm.

[0013] As a preferred solution of the utility model, a fixing block is fixedly connected inside the swing arm, and a second fixing frame is fixedly connected to the top of the swing arm.

[0014] As a preferred solution of the utility model, a crossbeam is fixedly connected to the side of the first fixing frame, a fixing rod is fixedly connected to the top of the crossbeam, and a load box is fixedly connected to the inside of the crossbeam.

[0015] As a preferred solution of the utility model, the bottom support assembly includes a base, the bottom of the base is fixedly connected to a support rod, and three support rods are provided.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In the utility model, the first motor is used to drive the moving block to move threadedly on the screw rod, so that the slider can slide on the slide rail, thereby driving the wire rope wheel to move smoothly at the bottom of the swing arm. This movement method has self-locking performance, synchronization, precision positioning, speed control, and thrust control.

[0018] 2. In the utility model, the scissor-type platform lifting structure composed of the first bracket, the second bracket and the third bracket is controlled by utilizing the extension and retraction of the telescopic rod to perform lifting, which has higher stability and higher load-bearing capacity, makes the high-altitude operation range larger, remains stable during the lifting process, is not prone to shaking and tipping, and greatly improves the operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the lifting assembly structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the traction assembly structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the mobile lifting component of the utility model.

[0023] In the figure: 1, bottom support assembly; 101, base; 102, support rod; 2, lifting assembly; 201, bottom plate; 202, air pump; 203, air pipe; 204, first bracket; 205, second bracket; 206, third bracket; 207, rotating plate; 208, telescopic rod; 3, top mounting assembly; 301, control room; 302, swing arm; 303, first fixed frame; 304, fixed rod; 305, horizontal Beam; 306, load box; 307, second fixed frame; 308, fixed block; 4, traction assembly; 401, supporting plate; 402, slide rail; 403, limiter; 404, first motor; 405, screw rod; 406, moving block; 407, slider; 408, supporting plate; 409, mounting frame; 410, wire rope wheel; 411, second motor; 412, brake box; 413, wire rope body; 414, hook. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] For examples, see Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] A wire rope traction device for a tower crane comprises a bottom support assembly 1, a lifting assembly 2 is fixedly connected to the top of the bottom support assembly 1, a top mounting assembly 3 is arranged on the top of the lifting assembly 2, and a traction assembly 4 is fixedly connected inside the top mounting assembly 3.

[0027] In this embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the lifting component 2 includes a bottom plate 201, an air pump 202 is installed on the top of the bottom plate 201, an air delivery pipe 203 is fixedly connected to the side of the air pump 202, a telescopic rod 208 is installed on the top of the bottom plate 201, a first bracket 204 is fixedly connected to the top of the bottom plate 201, a second bracket 205 is fixedly connected to the top of the first bracket 204, a third bracket 206 is fixedly connected to the top of the second bracket 205, and a rotating disk 207 is fixedly connected to the top of the third bracket 206. The traction component 4 includes a supporting plate 401, a slide rail 402 is fixedly connected to the bottom of the supporting plate 401, a slider 407 is slidably connected to the bottom of the slide rail 402, a first motor 404 is installed on the bottom of the supporting plate 401, a screw rod 405 is fixedly connected to the output end of the first motor 404, and the screw rod A moving block 406 is provided at the bottom of 405, and a supporting plate 408 is fixedly connected to the bottom of the moving block 406 and the slider 407, and a mounting frame 409 is fixedly connected to the bottom of the supporting plate 408. A wire rope pulley 410 is provided inside the mounting frame 409, and a second motor 411 is installed on the side of the mounting frame 409. A wire rope body 413 is fixedly connected to the bottom of the wire rope pulley 410, and a hook 414 is fixedly connected to the bottom of the wire rope body 413. The first motor 404 is used to drive the moving block 406 to perform threaded movement on the screw rod 405, so that the slider 407 can slide on the slide rail 402, thereby driving the wire rope pulley 410 to move smoothly at the bottom of the swing arm 302. This movement mode has self-locking performance, synchronization, precision positioning, speed control, and thrust control.

[0028] Among them, two telescopic rods 208 are provided, and the output ends of the two telescopic rods 208 are fixedly connected to the connection between the second bracket 205 and the third bracket 206. The bottom of the slide rail 402 is fixedly connected with a limiter 403, and two limiters 403 are provided. The screw rod 405 is arranged inside the moving block 406, and the screw rod 405 is threadedly connected to the moving block 406. There are two slide rails 402, and there are four sliders 407. The bottom of the second motor 411 is fixedly connected with a brake box 412. The scissor-type platform lifting structure composed of the first bracket 204, the second bracket 205 and the third bracket 206 is controlled by the telescopic rod 208 to perform lifting, which has higher stability and higher load-bearing capacity, makes the high-altitude operation range larger, remains stable during the lifting process, is not prone to shaking and tipping, and greatly improves the operation safety.

[0029] In this embodiment, Figure 1 and Figure 3 As shown, the top mounting assembly 3 includes a control room 301, the top of the control room 301 is fixedly connected with a first fixing frame 303, the side of the first fixing frame 303 is fixedly connected with a swing arm 302, the inside of the swing arm 302 is fixedly connected with a fixing block 308, the top of the swing arm 302 is fixedly connected with a second fixing frame 307, the side of the first fixing frame 303 is fixedly connected with a cross beam 305, the top of the cross beam 305 is fixedly connected with a fixing rod 304, the inside of the cross beam 305 is fixedly connected with a load box 306, the bottom support assembly 1 includes a base 101, the bottom of the base 101 is fixedly connected with a support rod 102, three support rods 102 are arranged, the coordinated use of the first fixing frame 303, the second fixing frame 307 and the fixing rod 304 strengthens the top support of the tower crane and ensures the stability and safety of the tower crane during operation.

[0030] Working process of the utility model: when the wire rope traction device of the tower crane designed by the present invention is in operation, the operator enters the control room 301, and uses the telescopic rod 208 to control the scissor-type platform lifting structure composed of the first bracket 204, the second bracket 205 and the third bracket 206 to lift the operator to the specified height position, and then uses the first motor 404 to drive the moving block 406 to move on the screw rod 405 in a threaded manner, so that the slider 407 can slide on the slide rail 402, thereby driving the wire rope wheel 410 to move smoothly at the bottom of the swing arm 302. When it moves to a suitable position, the second motor 411 is driven to lower the wire rope body 413 at the bottom of the wire rope wheel 410, and the hook 414 is used to hang the object, and the second motor 411 is driven to retract the wire rope body 413, thus completing the lifting of the object.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire rope traction device for a tower crane, comprising a bottom support assembly (1), characterized in that: The top of the bottom support component (1) is fixedly connected to a lifting component (2), the top of the lifting component (2) is provided with a top mounting component (3), and the interior of the top mounting component (3) is fixedly connected to a traction component (4); The lifting assembly (2) comprises a bottom plate (201), an air pump (202) is installed on the top of the bottom plate (201), a gas delivery pipe (203) is fixedly connected to the side of the air pump (202), a telescopic rod (208) is installed on the top of the bottom plate (201), a first bracket (204) is fixedly connected to the top of the bottom plate (201), a second bracket (205) is fixedly connected to the top of the first bracket (204), a third bracket (206) is fixedly connected to the top of the second bracket (205), and a rotating disk (207) is fixedly connected to the top of the third bracket (206); The traction assembly (4) comprises a receiving plate (401), the bottom of the receiving plate (401) is fixedly connected to a slide rail (402), the bottom of the slide rail (402) is slidably connected to a slider (407), a first motor (404) is installed at the bottom of the receiving plate (401), a lead screw (405) is fixedly connected to the output end of the first motor (404), a moving block (406) is arranged at the bottom of the lead screw (405), and the moving block (406) A supporting plate (408) is fixedly connected to the bottom of the slider (407), a mounting frame (409) is fixedly connected to the bottom of the supporting plate (408), a wire rope pulley (410) is arranged inside the mounting frame (409), a second motor (411) is installed on the side of the mounting frame (409), a wire rope body (413) is fixedly connected to the bottom of the wire rope pulley (410), and a hook (414) is fixedly connected to the bottom of the wire rope body (413).

2. A tower crane wire rope traction device according to claim 1, characterized in that: Two telescopic rods (208) are provided, and the output ends of the two telescopic rods (208) are fixedly connected to the connection point between the second bracket (205) and the third bracket (206).

3. A tower crane wire rope traction device according to claim 1, characterized in that: The bottom of the slide rail (402) is fixedly connected to a limiter (403), two limiters (403) are provided, and the screw rod (405) is provided inside the moving block (406), and the screw rod (405) is threadedly connected to the moving block (406).

4. A tower crane wire rope traction device according to claim 1, characterized in that: Two slide rails (402) are provided, four slide blocks (407) are provided, and a brake box (412) is fixedly connected to the bottom of the second motor (411).

5. The wire rope traction device for a tower crane according to claim 1, characterized in that: The top mounting assembly (3) comprises a control room (301), the top of the control room (301) is fixedly connected to a first fixing frame (303), and the side of the first fixing frame (303) is fixedly connected to a swing arm (302).

6. A tower crane wire rope traction device according to claim 5, characterized in that: A fixing block (308) is fixedly connected inside the swing arm (302), and a second fixing frame (307) is fixedly connected to the top of the swing arm (302).

7. A tower crane wire rope traction device according to claim 5, characterized in that: A crossbeam (305) is fixedly connected to the side of the first fixing frame (303), a fixing rod (304) is fixedly connected to the top of the crossbeam (305), and a load box (306) is fixedly connected to the inside of the crossbeam (305).

8. The wire rope traction device for a tower crane according to claim 1, characterized in that: The bottom support assembly (1) comprises a base (101), the bottom of the base (101) is fixedly connected to a support rod (102), and three support rods (102) are provided.

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