Shallow foundation pit stacking truck

Abstract

The invention relates to a shallow foundation pit stacking truck, and belongs to the technical field of construction machinery. The shallow foundation pit stacking truck comprises a rack, a bracket, alifting device, a pushing device and a die table support device, wherein the bracket is installed on the rack, the lifting device is installed on the rack, the pushing device and the die table support device are installed at the bottom of the bracket, and walking wheels at the bottom of the rack are arranged on a guide rail on the ground. According to the stacking truck, the positions of a driving roller and a support roller on the bracket are lowered to the bottom of the bracket from the top surface, so that the position of the bottom surface of a die table is greatly lowered, and the stacking truck achieves the effect of shallow foundation pits even without a pit. The shallow foundation pit stacking truck has the advantages of high stability, safety and reliability and can be widely popularized and applied in concrete component assembly construction.

Description

technical field [0001] The invention relates to a shallow foundation pit pallet truck, which belongs to the technical field of construction machinery. Background technique [0002] The assembly construction of concrete components can not only save labor, but also overcome the influence of seasons, and is convenient for year-round construction, so the application range is wider and wider; concrete components are also called PC components, and their production process is to use the distribution machine to spray into the mold table After the slurry is vibrated and scraped, the surface is smoothed or brushed, and then the mold table and PC components are sent to the curing kiln for curing by a pallet truck. After curing, the mold table and PC components are taken out of the curing kiln. Finally, the PC member is demoulded to obtain the desired article. [0003] The mold tables and prefabricated parts need to be transported to the supporting rollers on the production line, becau...

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Problems solved by technology

[0003] The mold tables and prefabricated parts need to be transported to the supporting rollers on the production line, because the design parameters of the production line cannot be changed, that is, the height of the supporting rollers from the ground is constant, and the walking device (walking on the rails) must be added under the bracket. Therefore, in order to adapt to the height of the supporting rollers from the ground, the existing pallet trucks all adopt the method of constructing deep foundation pits, but the construction of deep foundation pits will not only cause damage to the ground, prolong the construction period of the production line, but also put the pallet trucks into There are many inconveniences in the process of deep pits, and more manpower and material resources are required; the reducer and motor of the pallet truck are designed separately, and the reducer and motor are erected and fixed in the middle of the top of the frame. The defects of this design are: Not only the reducer and the motor need to be fixed separately, but also the alignment between the reducer and the motor is not easy to achieve during assembly, and repeated adjustments are required. The deformation of the motor will also affect the alignment of the reducer with the reducer.

There are 4 hoist drums, and the 2 hoist drums on the same side are respectively engaged and linked through large gears. The reducer drives the hoist drums on both sides through the transmission shaft, and the steel wire rope on each hoist drum forms a pulley block with the bracket respectively. , a total of 8 wire ropes are used to hoist the bracket, and a reducer with a large reduction ratio (input speed / output speed) is required. Such a reducer is not only large in size, but also high in cost; if the pulley at the bottom of each pulley block is adjusted to double pulleys , then a total of 16 steel wire ropes are used to hoist the bracket at this time, and the steel wire ropes are prone to deviation, job-hopping, and accidents during the lifting of the bracket;

[0004] Several sets of independent push-pull rods are required to push the mold table, and each set of push-pull rods needs to be equipped with a separate motor drive device and hydraulic steering device. Not only the production and maintenance costs are high, but also the space occupied by the push-pull mechanism is large, which is not conducive to Reduce the depth of the foundation pit

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