CN217838144U

CN217838144U - Tower crane lifting device

Info

Publication number: CN217838144U
Application number: CN202222034535.3U
Authority: CN
Inventors: 王立建; 张春丽; 李先阳; 张德龙; 傅博
Original assignee: Henan Dongqi Machinery Co ltd
Current assignee: Henan Dongqi Machinery Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-11-18
Anticipated expiration: 2032-08-03

Abstract

The application provides a tower crane lifting device, which comprises an installation platform and a main lifting hook, wherein the main lifting hook is fixedly arranged below the installation platform; a protective shell is arranged on the side surface of the mounting table, a fixed shaft is fixedly arranged on the protective shell, a winding drum is rotatably arranged outside the fixed shaft, the winding drum and the fixed shaft are arranged concentrically, and a coil spring is arranged between the winding drum and the fixed shaft; one end of the coil spring is fixedly connected to the fixed shaft, and the other end of the coil spring is fixedly connected to the inner wall of the winding drum; a steel wire rope is wound on the outer wall of the winding drum, one end of the steel wire rope is fixedly connected to the outer wall of the winding drum, and the other end of the steel wire rope extends out of the protective shell and is fixedly connected with an auxiliary lifting hook; the protective shell can limit the expansion of the steel wire rope; this tower crane hoisting device can prevent that the goods from taking place to incline after promoting to aloft, falls from the high altitude even, avoids the emergence of incident, improves factor of safety, reduces the potential safety hazard, easily operates, and the practicality is strong.

Description

Tower crane lifting device

Technical Field

The utility model belongs to the technical field of the hoist and specifically relates to a tower crane hoisting device.

Background

Tower cranes, also known as tower cranes, originate in western europe. And the movable arm is arranged on the rotary crane at the upper part of the high-rise tower body. The working space is large, and the device is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction. The device consists of a metal structure, a working mechanism and an electrical system. The metal structure comprises a tower body, a movable arm, a base and the like. The working mechanism has four parts of lifting, amplitude variation, rotation and walking. The lifting mechanism drives the lifting drum to rotate through the coupling and the hollow shaft of the speed reducer by the lifting motor, so that the steel wire rope or the cable wound on the drum drives the hook device to ascend or descend. The working performance of the whole crane is directly influenced by the working quality of the lifting mechanism.

The lifting hook is as hoisting device's important subassembly, whether it is reliable to be concerned with the fixed of lifting goods, current lifting hook is when lifting tubulose or platelike goods, all fix through hawser or wire rope at the object middle part usually, then hang on the lifting hook, this kind of hoist and mount mode is though simple swift, nevertheless lift by crane the in-process easily because rock, reasons such as vibration, lead to the goods to take place the slope, and then lead to lifting by crane the goods and can follow the high altitude and fall, cause the incident, consequently, need urgently at present a tower crane hoisting device that can safe and reliable lift by crane tubulose or platelike goods.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tower crane hoisting device for solve the problem that mentions in the above-mentioned background art.

In order to solve the problems, the utility model provides a tower crane lifting device, which comprises an installation platform and a main lifting hook, wherein the main lifting hook is fixedly installed below the installation platform; a protective shell is arranged on the side surface of the mounting table, a fixed shaft is fixedly mounted in the protective shell, a winding drum is rotatably mounted outside the fixed shaft, the winding drum and the fixed shaft are concentrically arranged, and a coil spring is further arranged between the winding drum and the fixed shaft; one end of the coil spring is fixedly connected to the fixed shaft, and the other end of the coil spring is fixedly connected to the inner wall of the winding drum; a steel wire rope is wound on the outer wall of the winding drum, one end of the steel wire rope is fixedly connected to the outer wall of the winding drum, and the other end of the steel wire rope extends out of the protective shell and is fixedly connected with an auxiliary lifting hook; the protective shell can limit the expansion and contraction of the steel wire rope.

Furthermore, a through hole is formed in the protective shell, and the steel wire rope penetrates through the through hole; an arc-shaped groove is formed in the side wall of the protective shell, an arc-shaped plate is slidably mounted in the arc-shaped groove, and the arc-shaped plate can block the through hole; the protection casing lateral wall is still seted up threaded hole, the threaded hole with the arc wall intercommunication, threaded hole female fit installs spacing bolt.

Furthermore, a lug is arranged at the end part of the arc-shaped plate extending out of the arc-shaped groove.

Furthermore, the protective housing is provided with two on the mount table symmetrically.

Furthermore, both ends of the fixed shaft are fixedly connected to the inner wall of the protective shell, the winding drum is sleeved on the fixed shaft, and the length of the winding drum is smaller than that of the fixed shaft.

Further, the protective housing is an arc-shaped housing, and the distance between the winding drum and the protective housing is larger than the diameter of the steel wire rope.

Furthermore, the mounting table is connected to a lifting winding drum through a steel wire rope, the lifting winding drum is fixedly mounted at the end of a movable arm, the movable arm is rotatably mounted at the top of the tower body, and the tower body is vertically and fixedly mounted on the base.

Further, a rotating table is rotatably arranged on the base, and the tower body is fixedly arranged on the upper surface of the rotating table.

The utility model has the advantages that: this tower crane hoisting device passes through the cooperation of main lifting hook and supplementary lifting hook, can all fix tubular goods, platelike goods center department and tip simultaneously, prevents that the goods from taking place to incline after promoting to aloft, falls from the high altitude even, avoids the emergence of incident, improves factor of safety, reduces the potential safety hazard, easily operation, and the practicality is strong.

Drawings

Fig. 1 is a schematic overall structure diagram of a shutdown state according to an embodiment of the present invention;

fig. 2 is a partial enlarged view of a portion a in fig. 1 according to an embodiment of the present invention;

fig. 3 is a schematic overall structure diagram of an operation state according to an embodiment of the present invention;

fig. 4 is a partial enlarged view of a portion B in fig. 3 according to an embodiment of the present invention.

In the figure: 1. a base; 11. a tower body; 12. a movable arm; 2. an installation table; 21. a main hook; 3. a protective shell; 31. a fixed shaft; 32. a coil spring; 33. a reel; 34. a wire rope; 35. an auxiliary lifting hook; 36. an arc-shaped plate; 37. a limit bolt; 38. and (4) a bump.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the embodiment of the tower crane lifting device of the present invention shown in fig. 1 to 4, the tower crane lifting device comprises a mounting platform 2 and a main hook 21, wherein the main hook 21 is fixedly installed below the mounting platform 2; a protective shell 3 is arranged on the side surface of the mounting table 2, a fixed shaft 31 is fixedly arranged in the protective shell 3, a winding drum 33 is rotatably arranged outside the fixed shaft 31, the winding drum 33 and the fixed shaft 31 are concentrically arranged, and a coil spring 32 is arranged between the winding drum 33 and the fixed shaft 31; one end of the coil spring 32 is fixedly connected to the fixed shaft 31, and the other end of the coil spring 32 is fixedly connected to the inner wall of the winding drum 33; a steel wire rope 34 is wound on the outer wall of the winding drum 33, one end of the steel wire rope 34 is fixedly connected to the outer wall of the winding drum 33, and the other end of the steel wire rope 34 extends out of the protective shell 3 and is fixedly connected with an auxiliary lifting hook 35; the protective case 3 can restrict the expansion and contraction of the wire rope 34.

When the lifting device of the tower crane is used for lifting tubular and plate-shaped goods, firstly, after the goods are bundled, the middle part of the goods is hung on the main lifting hook 21 through a cable and a rope, then after the goods are bundled at the end part by the same method, the auxiliary lifting hook 35 is pulled out, so that the auxiliary lifting hook 35 hooks the cable which is bundled at the end part of the goods, and because the auxiliary lifting hook 35 is pulled out, the coil spring 32 in the winding drum 33 needs to be overcome to do work, therefore, after the goods are hooked by the auxiliary lifting hook 35, the steel wire rope 34 on the auxiliary lifting hook 35 is in a tightening state under the action of the coil spring 32, at the moment, the steel wire rope 34 is fixed through the protective shell 3, the steel wire rope 34 can provide enough force, so that the auxiliary lifting hook 35 can smoothly assist the main lifting hook 21 to lift the goods, the goods are prevented from inclining or falling in the lifting process, and the safety of the lifting operation is improved.

In one embodiment of the present application, preferably, the protective shell 3 is provided with a through hole, and the steel wire rope 34 passes through the through hole; an arc-shaped groove is formed in the side wall of the protective shell 3, an arc-shaped plate 36 is slidably mounted in the arc-shaped groove, and the arc-shaped plate 36 can block the through hole; a threaded hole is further formed in the side wall of the protective shell 3 and communicated with the arc-shaped groove, and a limiting bolt 37 is installed in the threaded hole in a matched mode; when the steel wire rope 34 needs to be fixed, the arc-shaped plate 36 is pulled out, the arc-shaped plate 36 is matched with the side wall of the protective shell 3, the steel wire rope 34 is extruded between the end of the arc-shaped plate 36 and the protective shell 3, then the limiting bolt 37 is screwed, the limiting bolt 37 is abutted to the side wall of the arc-shaped plate 36, the arc-shaped plate 36 is prevented from moving, and therefore the steel wire rope 34 is fixed.

In one embodiment of the present application, it is preferable that the end of the arc plate 36 extending out of the arc slot is provided with a projection 38; the arc-shaped plate 36 is convenient to pull out, and operation is convenient for operators to operate.

In one embodiment of the present application, preferably, two protective cases 3 are symmetrically arranged on the mounting table 2, and two mechanisms and two auxiliary hooks 35 are correspondingly arranged in the protective cases 3; the middle part and the two ends of the goods are fixed, the main lifting hook 21 pulls the middle part, and the two ends of the goods are hooked by the two auxiliary lifting hooks 35 respectively, so that the balance and reliability of the stress of the goods are further ensured, and the goods cannot be inclined.

In an embodiment of the present application, preferably, both ends of the fixed shaft 31 are fixedly connected to the inner wall of the protective shell 3, the winding drum 33 is sleeved on the fixed shaft 31, and the length of the winding drum 33 is smaller than that of the fixed shaft 31; the end of the reel 33 is prevented from contacting the inner wall of the protective case 3, affecting the rotation of the reel 33.

In one embodiment of the present application, it is preferable that the protective case 3 is an arc-shaped case, and the diameter of the winding drum 33 is smaller than that of the protective case 3; the distance between the winding drum 33 and the protective shell 3 is larger than the diameter of the steel wire rope 34, so that the steel wire rope 34 wound on the winding drum 33 is prevented from rubbing against the inner wall of the protective shell 3 when the winding drum 33 rotates, the steel wire rope 34 is protected, and the service life of the steel wire rope 34 is prolonged.

In one embodiment of the present application, preferably, the mounting platform 2 is connected to a lifting drum through a steel wire rope, the lifting drum is fixedly mounted at an end of a boom 12, the boom 12 is rotatably mounted at the top of a tower body 11, and the tower body 11 is vertically and fixedly mounted on the base 1; guarantee this application and can normally promote the operation.

In one embodiment of the present application, preferably, the base 1 is rotatably provided with a rotating platform, and the tower body 11 is fixedly mounted on the upper surface of the rotating platform; the tower body 11 can rotate, and the operation range of the application is expanded.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A tower crane hoisting device which is characterized in that: the lifting device comprises an installation platform and a main lifting hook, wherein the main lifting hook is fixedly arranged below the installation platform; a protective shell is arranged on the side surface of the mounting table, a fixed shaft is fixedly mounted in the protective shell, a winding drum is rotatably mounted outside the fixed shaft, the winding drum and the fixed shaft are concentrically arranged, and a coil spring is further arranged between the winding drum and the fixed shaft; one end of the coil spring is fixedly connected to the fixed shaft, and the other end of the coil spring is fixedly connected to the inner wall of the winding drum; a steel wire rope is wound on the outer wall of the winding drum, one end of the steel wire rope is fixedly connected to the outer wall of the winding drum, and the other end of the steel wire rope extends out of the protective shell and is fixedly connected with an auxiliary lifting hook; the protective shell can limit the stretching of the steel wire rope.

2. The tower crane lifting device of claim 1, wherein: the protective shell is provided with a through hole, and the steel wire rope penetrates through the through hole; an arc-shaped groove is formed in the side wall of the protective shell, an arc-shaped plate is slidably mounted in the arc-shaped groove, and the arc-shaped plate can block the through hole; the protective shell is characterized in that the side wall of the protective shell is also provided with a threaded hole, the threaded hole is communicated with the arc-shaped groove, and a limiting bolt is arranged in the threaded hole in a matched manner.

3. The tower crane lifting device of claim 2, wherein: the end part of the arc-shaped plate extending out of the arc-shaped groove is provided with a convex block.

4. The tower crane lifting device of claim 1, wherein: the protective housing is in the symmetry is provided with two on the mount table.

5. The tower crane lifting device of claim 1, wherein: the two ends of the fixed shaft are fixedly connected to the inner wall of the protective shell, the winding drum is sleeved on the fixed shaft, and the length of the winding drum is smaller than that of the fixed shaft.

6. The tower crane lifting device of claim 1, wherein: the protective housing is arc-shaped, and the distance between the winding drum and the protective housing is greater than the diameter of the steel wire rope.

7. The tower crane lifting device of claim 1, wherein: the mounting table is connected to a lifting winding drum through a steel wire rope, the lifting winding drum is fixedly mounted at the end of a movable arm, the movable arm is rotatably mounted at the top of the tower body, and the tower body is vertically and fixedly mounted on the base.

8. The tower crane lifting device according to claim 7, wherein: the base is rotatably provided with a rotating platform, and the tower body is fixedly arranged on the upper surface of the rotating platform.