CN106927376A - A kind of new derrick runway girder Tiebar structure - Google Patents

Abstract

The invention discloses a kind of new derrick runway girder Tiebar structure, including single tower top pulley（3）, interior arm-tie（1）, outer arm-tie（2）, draw-in bar（5）, outside link（6）, also connect interior arm-tie respectively including two ends（1）, draw-in bar（5）Interior adjustable plate（7）, and two ends connect outer arm-tie respectively（2）, outside link（6）Outer adjustable plate（8）.Beneficial effect is to cancel plate pulling device structure, and reduces tower top assembly pulley quantity, and manufacturing lifting arm brace becomes simple, cost reduction, by increasing inside and outside adjustable plate, makes pull bar easily in place in installation process.

Description

A New Type of Tower Crane's Lifting Arm Tie Rod Structure

technical field

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

Background technique

The design of the jib tie rod of the existing tower crane is shown in Fig. 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 novel 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 novel 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, an outer pull rod, and also includes two ends connected to the inner pull plate, An inner adjustment plate of the inner tie rod, and an outer adjustment plate whose two ends are respectively connected with the outer pull plate and the outer tie rod. Further, it also includes the installation of steel wire ropes, which are directly fixed on the inner and outer tie rods 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

Figure 1 is a structural schematic diagram of the existing tower crane jib tie rod;

Fig. 2 is a schematic diagram of the structure of the top draw plate in Fig. 1;

Figure 3 is a schematic diagram of the structure in the A-A direction in Figure 2;

Figure 4 is a schematic structural diagram of the B-B direction in Figure 2;

Figure 5 is a structural schematic diagram of the tie rod part in Figure 1;

Figure 6 is a schematic structural diagram of the C-C direction in Figure 5;

Figure 7 is a schematic structural diagram of the D-D direction in Figure 5;

Figure 8 is a schematic structural diagram of the present invention;

Figure 9 is a schematic diagram of the structure in the A-A direction in Figure 8;

Figure 10 is a schematic diagram of the structure along the B-B direction in Figure 8.

In 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 steel wire ropes, 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 the installation wire rope is bypassed by the tower top pulley 3 and directly fixed on the outer tie rod 6, and the outer tie plate 2 and the outer tie rod are adjusted 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, but also has important reference value and application value for the design of other products.

Claims (3)

1. A new type of tower crane jib tie rod structure, characterized in that it includes 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), which also includes the inner adjustment plate (7) whose two ends are respectively connected to the inner pull plate (1) and the inner tie rod (5), and the outer adjustment plate whose two ends are respectively connected to the outer pull plate (2) and the outer tie rod (6) (8). 2. A new type of tower crane jib tie rod structure according to claim 1, characterized in that it also includes an installation wire rope, which is directly fixed on the outer tie rod (6) after passing through the tower top pulley (3). 3. A new type of tower crane jib tie rod structure according to claim 1, characterized in that it also includes an installation wire rope, which is directly fixed to the inner tie rod (5) after passing through the tower top pulley (3).