CN216336282U

CN216336282U - Hoisting mechanism for tower crane

Info

Publication number: CN216336282U
Application number: CN202122793517.9U
Authority: CN
Inventors: 金小鲲; 禇国华; 赖裕凤; 俞晨翀; 郑新将
Original assignee: Haining Huba Heavy Industry Co ltd
Current assignee: Haining Huba Heavy Industry Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-19
Anticipated expiration: 2031-11-15

Abstract

The utility model provides a hoisting mechanism for a tower crane, and belongs to the technical field of cranes. A hoisting mechanism for a tower crane comprises a base, a winding drum and a support, wherein the winding drum is rotatably arranged on the base; the guide wheel can move axially along the fixed shaft and can rotate axially on the fixed shaft; wherein the fixed shaft can be mounted on the first mounting part or the second mounting part.

Description

Hoisting mechanism for tower crane

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a hoisting mechanism for a tower crane.

Background

The hoisting mechanism of the crane has two types and the two types of wire guiding modes have differences, so that the two types of hoisting mechanisms cannot be shared.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a hoisting mechanism for a tower crane, which has the characteristics of simple structure and capability of being replaced in a guiding mode according to the requirements of customers.

The purpose of the utility model can be realized by the following technical scheme:

a lifting mechanism for a tower crane comprises a base, wherein a winding drum is rotatably arranged on the base,

it is characterized by also comprising

The bracket is fixed on the base and provided with a first mounting part and a second mounting part; and

the guide wheel can move axially along the fixed shaft and can rotate axially on the fixed shaft;

wherein the fixing shaft can be mounted on the first mounting part or the second mounting part.

In the hoisting mechanism for the tower crane, the support comprises two symmetrical support bodies, and two ends of the fixed shaft are respectively fixed on the two support bodies.

In the hoisting mechanism for the tower crane, the first installation part is located right in front of the winding drum, and the second installation part is located below the first installation part.

In the hoisting mechanism for the tower crane, the fixed shaft is sleeved with two limiting rings, and the two limiting rings are respectively positioned on two sides of the guide wheel and between the guide wheel and the frame body.

In the hoisting mechanism for the tower crane, the hoisting mechanism further comprises a pressing plate, the first installation part and the second installation part are respectively provided with a positioning hole, one of the positioning holes is penetrated through the end part of the fixed shaft, the two ends of the fixed shaft are respectively provided with a limiting groove, and the pressing plate is clamped into the limiting groove and then is detachably and fixedly connected with the support.

In the hoisting mechanism for the tower crane, the detachable fixed connection is realized by adopting a bolt connection.

Compared with the prior art, the utility model has the following advantages:

in the utility model, the rope is wound on the winding drum and wound on the guide wheel, and the fixed shaft can be fixedly arranged on the first installation part or the second installation part according to the actual winding requirement and mode, and the first installation part or the second installation part can be selected from the fixed shaft and the second installation part. Two installation positions can make two around establishing the mode and can both realize on same equipment, have avoided the trouble of multiple specification.

Drawings

Fig. 1 is a schematic view of a fixed shaft mounted to a second mounting portion.

Fig. 2 is a schematic view of the fixed shaft mounted to the first mounting portion.

Fig. 3 is a schematic view of the direction a in fig. 1.

Fig. 4 is a sectional view of the pressure plate and the fixed shaft.

In the figure, 1, a base; 2. a reel; 3. a support; 31. a first mounting portion; 32. a second mounting portion; 33. 34, positioning holes; 4. a fixed shaft; 41. a limiting groove; 5. a guide wheel; 6. a limiting ring; 7. and (7) pressing a plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figures 1 to 4 of the drawings,

a hoisting mechanism for a tower crane comprises a base 1, a winding drum 2 is rotatably arranged on the base 1, a support 3 and a fixed shaft 4 are included, the support 3 is fixed on the base 1, and the support 3 is provided with a first mounting part 31 and a second mounting part 32; the fixed shaft 4 is provided with a guide wheel 5, and the guide wheel 5 can move axially along the fixed shaft 4 and can rotate axially on the fixed shaft 4; wherein the fixed shaft 4 can be mounted on the first mounting portion 31 or the second mounting portion 32.

In the present invention, the rope is wound around the winding drum 2 and wound around the guide wheel 5, and the fixed shaft 4 may be fixedly mounted on the first mounting portion 31 or the second mounting portion 32 according to the actual winding requirement and mode, or alternatively. Two installation positions can make two around establishing the mode and can both realize on same equipment, have avoided the trouble of multiple specification.

In the present invention, the guide pulley 5 can be automatically moved and adjusted in the axial direction of the fixed shaft 4 according to the position of the rope on the drum 2.

In the actual installation process, the rope on the winding drum 2 is wound along the upper part of the guide wheel 5 positioned at the first installation part 31; alternatively, the rope on the drum 2 is wound along the lower side of the guide pulley 5 at the second mounting portion 32.

Specifically, the bracket 3 includes two symmetrical frame bodies, and two ends of the fixing shaft 4 are respectively fixed on the two frame bodies. The two ends of the fixed shaft 4 are fixed and stable through the two frame bodies. The first and second mounting

portions

31 and 32 are located on the frame body. The two frame bodies have the same structure.

Specifically, the first mounting portion 31 is located directly in front of the reel 2, and the second mounting portion 32 is located below the first mounting portion 31.

Specifically, the fixed shaft 4 is sleeved with two limiting rings 6, and the two limiting rings 6 are respectively located on two sides of the guide wheel 5 and between the guide wheel 5 and the frame body. The guide wheel 5 can be prevented from rubbing the frame body when moving axially along the fixed shaft 4 through the limiting ring 6. Avoiding the abrasion of the frame body.

Specifically, the clamping device further comprises a pressing plate 7,

positioning holes

33 and 34 are formed in the first installation portion 31 and the second installation portion 32 respectively, the end portion of the fixing shaft 4 penetrates through one of the

positioning holes

33 and 34, limiting grooves 41 are formed in two ends of the fixing shaft 4 respectively, and the pressing plate 7 is clamped into the limiting grooves 41 and is detachably and fixedly connected with the support 3. Further, after the fixing shaft 4 is inserted into the

positioning holes

33, 34, the pressing plate 7 is inserted into the limiting groove 41, and then the pressing plate 7 is connected to the bracket 3, thereby fixing the fixing shaft 4.

Specifically, the detachable fixed connection adopts a bolt connection. The pressing plate 7 and the bracket 3 are connected by bolts.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Also, the meaning of "and/or" appearing throughout is to include three versions, exemplified by "A and/or B" including either version A, or version B, or versions in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A hoisting mechanism for a tower crane comprises a base (1), wherein a winding drum (2) is rotatably arranged on the base (1),

it is characterized by also comprising

A bracket (3), wherein the bracket (3) is fixed on the base (1), and the bracket (3) is provided with a first mounting part (31) and a second mounting part (32); and

the guide wheel (5) is arranged on the fixed shaft (4), and the guide wheel (5) can move axially along the fixed shaft (4) and can rotate axially on the fixed shaft (4);

wherein the fixed shaft (4) is mountable on the first mounting portion (31) or the second mounting portion (32).

2. A hoisting mechanism for a tower crane according to claim 1, characterized in that the support (3) comprises two symmetrical frame bodies, and the two ends of the fixed shaft (4) are respectively fixed on the two frame bodies.

3. A hoisting mechanism for a tower crane according to claim 1, characterized in that the first mounting portion (31) is located directly in front of the drum (2) and the second mounting portion (32) is located below the first mounting portion (31).

4. The hoisting mechanism for a tower crane according to claim 2, wherein two limiting rings (6) are sleeved on the fixed shaft (4), and the two limiting rings (6) are respectively positioned on two sides of the guide wheel (5) and between the guide wheel (5) and the frame body.

5. The hoisting mechanism for the tower crane according to claim 1, further comprising a pressing plate (7), wherein the first installation part (31) and the second installation part (32) are respectively provided with a positioning hole (33, 34), the end part of the fixed shaft (4) penetrates through one of the positioning holes, two ends of the fixed shaft (4) are respectively provided with a limiting groove (41), and the pressing plate (7) is clamped into the limiting groove (41) and is detachably and fixedly connected with the support (3).

6. A hoisting mechanism for a tower crane according to claim 5, wherein the releasable fixed connection is bolted.