CN206308702U - A kind of portable basis of derrick crane - Google Patents

Abstract

A mobile foundation for a tower crane, which includes a foundation body, a mounting support and a hook, the foundation body is a square reinforced concrete structure and a pre-embedded steel plate is provided in the center of the top, and the installation support is arranged on the top of the foundation body The center is connected with the pre-embedded steel plate, and the hooks are symmetrically distributed at both ends of the top of the foundation body; it uses a movable foundation to overcome the defects of long installation period and high construction cost in the prior art, and the overall structure is scientific and reasonable, The manufacturing process is simple, the installation and operation are convenient, the preparation time for installation can be effectively shortened, and the construction cost can be reduced; it is widely applicable to the foundation supporting use of the fixed-frame tower crane.

Description

Mobile foundation of a tower crane

technical field

The utility model relates to the technical field of a tower crane with a fixed base, in particular to a mobile foundation of the tower crane.

Background technique

The traditional base frame fixed tower crane generally adopts the underground integrated pre-embedded reinforced concrete as the installation foundation, which needs to be poured one month before the installation of the tower crane, and the foundation position needs to be filled after the tower crane is dismantled; this kind of installation The method has a long construction period, and the installation base position cannot be moved and cannot be reused, resulting in high installation costs.

Contents of the invention

In view of the above situation, the purpose of this utility model is to provide a mobile foundation for tower cranes, which overcomes the defects of long installation period and high construction cost in the prior art by using the movable foundation; and the overall structure is scientific and reasonable, and the manufacturing process is simple , It is easy to install and operate, can effectively shorten the installation preparation time, and can reduce the construction cost. It has a broad market prospect and is easy to promote and use.

In order to achieve the above tasks, a mobile foundation for a tower crane includes a foundation body, an installation support and a hook. It is arranged at the center of the top of the basic body and connected with the embedded steel plate, and the hooks are symmetrically distributed at both ends of the top of the basic body.

In order to optimize the structure and effect of the utility model, further measures are as follows: the mounting support and the basic body are connected by welding or bolts, and the edge line of the mounting support and the edge line of the basic body are installed at an oblique angle of 45°.

The mounting support is welded by steel plate and/or section steel, and several through holes are distributed symmetrically on the plane of the mounting support.

The length and width of the basic body are 2200-3500 mm, and the height is 500-800 mm.

The utility model provides a mobile foundation for a tower crane, which includes a foundation body, a mounting support and a hook. In the center of the top of the foundation body and connected with the pre-embedded steel plate, the technical scheme in which the hooks are symmetrically distributed at both ends of the top of the foundation body; it uses a movable foundation to overcome the defects of long installation period and high construction cost in the prior art, Moreover, the overall structure is scientific and reasonable, the manufacturing process is simple, and the installation and operation are convenient, which can effectively shorten the installation preparation time and reduce the construction cost, and have significant economic and social benefits.

Compared with the beneficial effects produced by the prior art, the utility model:

Ⅰ. The utility model adopts the connection of the installation support on the square reinforced concrete structure as the foundation of the tower crane, which can realize repeated installation and use, and can effectively shorten the installation period and reduce the construction cost;

Ⅱ. The utility model adopts several through holes distributed symmetrically on the plane of the mounting support, and the through holes at different positions are connected by bolts, so as to realize the installation of tower crane underframes of different specifications on the same foundation, which has good versatility and effectively reduces the production cost;

Ⅲ. The overall structure of the utility model is scientific and reasonable, the manufacturing process is simple, the installation and operation are convenient, the use is safe and reliable, the tower crane can be installed quickly, and the installation and construction costs are reduced, which has significant economic and social benefits.

The utility model is widely applicable to the supporting use of the foundation of the bottom frame fixed tower crane.

Below with reference to figure, the utility model is described in further detail.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model.

Fig. 1 is the front view of the overall structure of the utility model.

Fig. 2 is a top view of the overall structure of the utility model.

Fig. 3 is a structural schematic diagram of the mounting support in the utility model.

Figure 4 is a front view of the overall installation of the underframe of the tower crane in the utility model.

FIG. 5 is a top view of FIG. 4 .

In the figure: 1-ground, 2-foundation block, 21-basic body, 211-embedded steel plate, 22-installation support, 23-hook, 3-tower crane chassis, 4-bolt.

detailed description

With reference to the accompanying drawings, the utility model is realized in the following way: a mobile foundation of a tower crane, which includes a foundation body 21, an installation support 22 and a hook 23, the foundation body 21 is a square reinforced concrete structure and the center of the top is A pre-embedded steel plate 211 is provided, and the mounting support 22 is arranged at the center of the top of the base body 21 and connected with the pre-embedded steel plate 211 , and the hooks 23 are symmetrically distributed at both ends of the top of the base body 21 .

As shown in Figure 1 and Figure 2, the mounting support 22 and the basic body 21 are connected by welding or bolts in the utility model, and the edge line of the mounting support 22 and the edge line of the basic body 21 are installed at an oblique angle of 45°, which has It is beneficial to the uniform force of the foundation body and ensures work safety; the installation support 22 is welded by steel plates and/or section steel, and several through holes are symmetrically distributed on the plane of the installation support 22, and the tower crane chassis 3 is connected by bolts 4 It is connected with the through hole on the mounting support 22, and can be adapted to the tower crane chassis 3 of different specifications through the through holes connected to different positions; the length and width of the basic body 21 are 2200-3500mm, and the height is 500-800mm .

As shown in Fig. 3, Fig. 4 and Fig. 5, the working principle of the utility model is: first make four identical foundation blocks 2, and each foundation block 2 includes a foundation body 21, a mounting support 22 and a hook 23; Then determine the installation position of the tower crane according to the specifications of the tower crane and the conditions of the construction site, and place the foundation block 2 symmetrically on the ground 1 of the installation position of the tower crane. It is necessary to ensure that the parallelism of the upper planes of the four foundation blocks 2 in the horizontal direction is not greater than 3mm , and then the tower crane base frame 3 is set on the installation support 22 of the foundation block 2 and connected with the bolt 4, and finally the bolt 4 is tightened according to the pre-tightening torque to complete the installation of the tower crane foundation; when the tower crane is used and dismantled, Four basic blocks 2 can be hoisted back to the warehouse through the hook 23 for next use.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes; Within the principle, any modification, equivalent replacement, improvement, etc. should be included in the protection scope of the present utility model.

Claims (4)

1. A mobile foundation for a tower crane, characterized in that it comprises a foundation body (21), an installation support (22) and a suspension hook (23), and the foundation body (21) is a square reinforced concrete structure and the top center There is a pre-embedded steel plate (211), the installation support (22) is set at the top center of the basic body (21) and connected with the pre-embedded steel plate (211), and the hooks (23) are symmetrically distributed on the basic body (21) ) at both ends of the top. 2. The mobile foundation of a tower crane according to claim 1, characterized in that the mounting support (22) is connected to the foundation body (21) by welding or bolts, and the edge of the mounting support (22) The edge line of line and basic body (21) is 45 ° of oblique installations. 3. The mobile foundation of a tower crane according to claim 1, characterized in that the mounting support (22) is welded by steel plates and/or section steel, and the upper plane of the mounting support (22) is symmetrical Several through holes are distributed. 4. A mobile tower crane foundation according to claim 1, characterized in that the length and width of the foundation body (21) are 2200-3500 mm, and the height is 500-800 mm.