CN105384089A - Tower crane cargo boom pull rod structure - Google Patents

Abstract

The invention discloses a tower crane jib tie rod structure, comprising a single tower top pulley (3), an inner tie plate (1), an outer tie plate (2), an inner tie rod (5), an outer tie rod (6), and It includes an inner adjustment plate (7) whose two ends are respectively connected to the inner pull plate (1) and the inner pull rod (5), and an outer adjustment plate (8) whose two ends are respectively connected to the outer pull plate (2) and the outer pull rod (6). The beneficial effect is that the puller structure is canceled, and the number of pulley blocks at the top of the tower is reduced, so that the manufacture of the jib tie rod is simplified and the cost is reduced. By adding the inner and outer adjustment plates, the tie rod can be easily placed in place during installation.

Description

A tower crane jib tie rod structure

technical field

The invention relates to a tie rod structure, in particular to a tower crane lifting arm tie rod structure.

Background technique

The design of the jib tie rod of the existing tower crane is shown in Figures 1-7. The jib tie rod adopts a puller structure, and the tower top adopts a double pulley block structure. When installing the boom pull rod, the hoisting steel wire rope passes through the tower top pulley, puller pulley, and tower top pulley in turn and is fixed on the puller, and finally the puller is connected with the inner and outer tie rod pull plates at the top of the tower with a pin.

The disadvantage of the above structure is that there are many pulley blocks, heavy structure, complicated manufacture, and high cost. The specific description is as follows: 1. Since there are two pulley blocks on the top of the tower and one on the puller, the number of pulley blocks is large and the cost is high; 2. Due to The plate pulling device has a large structural weight and many parts, resulting in high manufacturing cost; 3. There are many structural parts and complicated installation.

Contents of the invention

In view of the above existing technical problems, the present invention provides a tower crane jib tie rod structure, which makes the manufacture of the tower crane jib tie rod simple, low in cost and easy to install.

In order to achieve the above object, the present invention provides a tower crane jib tie rod structure, which includes a single tower top pulley, an inner pull plate, an outer pull plate, an inner pull rod, and an outer pull rod, and also includes two ends connected to the inner pull plate and the inner pull rod respectively. The inner adjustment plate, and the outer adjustment plate whose two ends are respectively connected to the outer pull plate and the outer pull rod.

Further, it also includes installing a steel wire rope, which is directly fixed on the outer pull rod after passing through the tower top pulley.

Further, it also includes installing a steel wire rope, which is directly fixed on the inner tie rod after passing through the tower top pulley.

The invention eliminates the structure of the puller and reduces the number of pulley blocks on the top of the tower, so that the manufacture of the boom pull rod is simplified and the cost is reduced. By adding internal and external adjustment plates, the pull rod can be easily placed in place during installation. It has the following beneficial effects:

1. Due to the simple structure and few parts, the manufacturing process becomes convenient and quick.

2. Because the structure is light in weight and there are few pulley blocks, the cost of design and manufacture is reduced.

3. Since the assembly parts are reduced, the installation process becomes quicker.

Description of drawings

Fig. 1 is the structural representation of existing tower crane jib pull rod;

Fig. 2 is the structural representation of tower top drawing plate part among Fig. 1;

Fig. 3 is a schematic structural diagram of A-A direction in Fig. 2;

Fig. 4 is a schematic structural diagram of B-B direction in Fig. 2;

Fig. 5 is a structural schematic diagram of the pull rod part in Fig. 1;

Fig. 6 is a schematic structural diagram of C-C direction in Fig. 5;

Fig. 7 is a schematic structural diagram of D-D direction in Fig. 5;

Fig. 8 is a structural schematic diagram of the present invention;

Fig. 9 is a schematic structural diagram of direction A-A in Fig. 8;

FIG. 10 is a schematic structural diagram of the B-B direction in FIG. 8 .

Among the figure: 1, inner pull plate, 2, outer pull plate, 3, tower top pulley, 4, plate puller, 5, inner pull rod, 6, outer pull rod, 7, inner adjustment plate, 8, outer adjustment plate.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 8-10, the present invention includes installing a steel wire rope, a single tower top pulley 3, an inner pull plate 1, an outer pull plate 2, an inner pull rod 5, and an outer pull rod 6, and also includes connecting the inner pull plate 1, The inner adjustment plate 7 of the inner tie rod 5, and the outer adjustment plate 8 whose two ends are respectively connected with the outer tie plate 2 and the outer tie rod 6.

When installing the jib tie rod, generally install the outer tie rod 6 first and then install the inner tie rod 5, so first install the steel wire rope around the tower top pulley 3 and directly fix it on the outer tie rod 6, and adjust the outer tie plate 2 and the outer tie rod through the outer adjustment plate 8 6; then install the steel wire rope around the tower top pulley 3 and directly fix it on the inner tie rod 5, and adjust the installation positions of the inner tie plate 1 and the inner tie rod 5 through the inner adjustment plate 7.

The tower top of the present invention adopts a single pulley block, removes the boom tie rod puller, and through the inner and outer adjustment plates of the boom tie rod, the boom tie rod has the function of adjusting in place during installation, with fewer parts, light structure, Low cost and other advantages.

By applying this technology, the boom tie rod of XGT80DQ (5610-6) is not only very convenient and fast in the production and installation process, but also shortens the production cycle and production cost. At the same time, it also has important reference value and application value for the design of other products.

Claims (3)

1. a derrick runway girder Tiebar structure, it is characterized in that, comprise single tower top pulley (3), interior arm-tie (1), outer arm-tie (2), draw-in bar (5), outside link (6), also comprise the interior regulating plate (7) that two ends connect interior arm-tie (1), draw-in bar (5) respectively, and two ends connect the outer regulating plate (8) of outer arm-tie (2), outside link (6) respectively.

2. a kind of derrick runway girder Tiebar structure according to claim 1, is characterized in that, also comprise installation steel rope, and it is directly fixed on outside link (6) after tower top pulley (3).

3. a kind of derrick runway girder Tiebar structure according to claim 1, is characterized in that, also comprise installation steel rope, and it is directly fixed on draw-in bar (5) after tower top pulley (3).