CN207483222U - A kind of swing arm pull rod device installs fixed structure - Google Patents

Abstract

The utility model discloses an installation and fixing structure of a boom puller, which belongs to the field of engineering machinery and includes a puller and a tower head structure. The puller is installed on the tower head structure, and the puller includes a pulley block bracket, a pulley block, and a pulley shaft and a fixed single lug plate, the pulley block is installed on the pulley block bracket through the pulley shaft, the fixed single lug plate is installed on both sides of the pulley block through the pulley shaft, and the fixed single lug plate is provided with a pin hole and an anti-tilt platform The tower head structure includes a truss structure and a fixed double ear plate, and the fixed double ear plate cooperates with the fixed single ear plate to realize the installation of the rod puller. The fixing structure of the puller of the utility model changes the support structure of the pulley group of the puller, and designs and fixes double ear plates on the structure of the tower head. The structure is simple, the production and processing are convenient, and the installation and disassembly are convenient.

Description

Mounting and fixing structure of a boom puller

technical field

The utility model relates to an installation and fixing structure of a boom puller, which belongs to the field of engineering machinery.

Background technique

The structure of the existing boom puller is shown in Figure 1, which includes a pulley bracket 1, a pulley 2 and a pulley shaft 3, the pulley 2 is installed on the pulley bracket 1 through the pulley shaft 3, and then the puller is directly placed on the platform. This rod structure is widely used.

There are following disadvantages in the structure of above-mentioned rod puller:

1) There is nowhere to place the rod puller. There is no consideration of the fixed structure design on the luffing pulley block bracket of the rod puller, so that the rod puller cannot be fixed during the installation and disassembly process, and the rod puller is placed randomly during the assembly and disassembly process, which has certain hidden dangers.

2) It is inconvenient to install and disassemble. There is no fixed structure during the installation and disassembly process, and the threading of the wire rope is relatively troublesome and easy to mess up.

Contents of the invention

Aiming at the above-mentioned problems in the prior art, the utility model provides an installation and fixing structure of a boom puller, which makes the installation, disassembly and transportation of the puller simpler and more convenient, and improves the applicability of the puller.

In order to achieve the above object, the installation and fixing structure of a boom puller used in the utility model includes a puller and a tower head structure, the puller is installed on the tower head structure, and the puller includes a pulley block bracket, a pulley block, a pulley The wheel shaft and the fixed single lug plate, the pulley block is installed on the pulley block bracket through the pulley shaft, the fixed single lug plate is installed on both sides of the pulley block through the pulley shaft, and the fixed single lug plate is provided with pin shaft holes and anti-tilt platform;

The tower head structure includes a truss structure and a fixed double ear plate, and the fixed double ear plate cooperates with the fixed single ear plate to realize the installation of the rod puller.

As an improvement, the truss structure is composed of a main chord, a web, and a pulley block.

As an improvement, a through hole corresponding to the pin shaft hole is opened on the fixed double ear plate, and a connecting piece is installed in the through hole and the pin shaft hole.

As a further improvement, the connecting piece includes a pin shaft and a cotter pin installed at one end of the pin shaft.

As an improvement, a sealing plate is provided between the fixed double lugs, the pin hole is set at the lower end of the fixed single lug, and the anti-tilt platform is set on one side of the pin hole;

When the through hole and pin hole are connected, the anti-tilt platform is placed on the sealing plate.

Compared with the prior art, the rod puller fixing structure of the utility model changes the puller structure and designs and fixes double ear plates on the tower head structure. This puller fixing structure mainly has the following advantages:

1) The structure is simple, and the production and processing are convenient. This structural form is redesigned on the original shape of the pull plate, adding pin holes, and installing and fixing double ear plates on the tower head structure, which is easy to implement and has enhanced functions.

2) Easy to install and disassemble. When installing and dismantling, it is not necessary to place the puller in an unfixed position. It can be fixed on the tower head structure during installation, dismantling, and transportation. When using it, only the fixing pin can be removed, which is easy to operate , very convenient to use.

Description of drawings

Fig. 1 is the structural representation of existing boom puller;

Fig. 2 is the structural representation of rod pull device in the utility model;

Fig. 3 is the front view of tower head structure in the utility model;

Fig. 4 is the right side view of tower head structure in the utility model;

Fig. 5 is the structural representation of the utility model;

Among the figure: 1, pulley block bracket, 2, pulley block, 3, pulley shaft, 4, fixed single lug plate, 41, pin shaft hole, 42, anti-tilt platform, 5, fixed double lug plate, 6, pin shaft, 7, Cotter pin, 8, tie rod device, 9, tower head structure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail through the accompanying drawings and embodiments below. However, it should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the scope of the utility model.

As shown in Fig. 2, Fig. 3 and Fig. 4, a kind of installation and fixing structure of the boom puller includes a puller 8 and a tower head structure 9, the puller 8 is installed on the tower head structure 9, and the puller 8 It includes a pulley block bracket 1, a pulley block 2, a pulley shaft 3 and a fixed single ear plate 4. The pulley block 2 is installed on the pulley block bracket 1 through the pulley shaft 3, and the fixed single ear plate 4 is installed on both sides of the pulley block 2 through the pulley shaft 3. side, the fixed single ear plate 4 is provided with a pin hole 41 and an anti-tilt platform 42;

The tower head structure 9 includes a truss structure and a fixed double ear plate 5 , and the fixed double ear plate 5 cooperates with the fixed single ear plate 4 to realize the installation of the rod puller 8 .

As an improvement of the embodiment, the truss structure is composed of a main chord, a web, and a pulley block, and the truss structure is used to bear a hoisting load.

As an improvement of the embodiment, the fixed double ear plate 5 is provided with a through hole, and the pin shaft 6 and the cotter pin 7 are installed in the through hole and the pin shaft hole 41, and the rod puller 8 can be used for installation, removal and transportation. It is fixed on the tower head structure 9, and only needs to remove the fixing pin shaft during use, which is easy to operate and very convenient to use.

As an improvement of the embodiment, a sealing plate is provided between the fixed double lugs 5, the pin hole 41 is set at the lower end of the fixed single lug 4, and the anti-tilt platform 42 is set on one side of the pin hole 41 ;

When the through hole and pin shaft hole 41 are connected, the anti-tilt platform 42 is placed on the sealing plate.

The utility model designs the fixed structure on the basis of the original rod puller, changes the shape of the original pull plate on the support of the luffing pulley group of the pull rod device, processes the pin hole 41, and designs the anti-tilt platform 42; Fix the double ear plate 5, fix the puller 8 on the tower head structure 9 through the pin shaft 6 and the cotter pin 7, and place the anti-tilt platform 42 on the puller 8 on the set double ear plate sealing plate. The structural form is very simple and convenient.

During use, as shown in Figure 5, when the luffing wire rope is worn by the luffing jib tower crane, only the tie rod device 8 is fixed on the tower head structure 9, and then connected with the luffing pull rod. During the dismantling process, the connection between the tie rod device 8 and the tie rod can be removed, and the rod tie device 8 can be directly fixed on the tower head structure 9 . This kind of fixed structure connection requires low precision and is easy to operate; the structure is very simple, the installation is also convenient, and the disassembly is simple and quick, so that the tie rod can be fixed to a good effect.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modification, equivalent replacement or improvement made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. An installation and fixing structure of a boom puller, comprising a puller (8), a tower head structure (9), and the puller (8) is installed on the tower head structure (9), it is characterized in that the puller Device (8) comprises pulley block bracket (1), pulley block (2), pulley shaft (3) and fixed single ear plate (4), and described pulley block (2) is installed on the pulley block support (1) through pulley shaft (3) , the fixed single lug (4) is installed on both sides of the pulley block (2) through the pulley shaft (3), and the fixed single lug (4) is provided with a pin shaft hole (41) and an anti-tilt platform (42 ); The tower head structure (9) includes a truss structure and a fixed double ear plate (5), and the fixed double ear plate (5) cooperates with the fixed single ear plate (4) to realize the installation of the rod puller (8). 2. The installation and fixing structure of a boom puller according to claim 1, wherein the truss structure is composed of a main chord, a web, and a pulley block. 3. The installation and fixing structure of a boom puller according to claim 1, characterized in that, the fixed double ear plate (5) is provided with a through hole corresponding to the pin shaft hole (41), and the through hole is Connectors are installed in the holes and pin holes (41). 4. The installation and fixing structure of the boom puller according to claim 3, characterized in that, the connecting piece comprises a pin shaft (6) and a cotter pin (7) installed at one end of the pin shaft (6). 5. The installation and fixing structure of a boom puller according to claim 3, characterized in that, a sealing plate is provided between the fixed double ear plates (5), and the pin hole (41) is arranged on the fixed unit. The lower end of the ear plate (4), the anti-tilt platform (42) is arranged on one side of the pin hole (41); When the through hole and pin shaft hole (41) are connected, the anti-tilt platform (42) is placed on the sealing plate.