Sand and gravel screening device for swing bridge construction

Abstract

The invention discloses a sand and gravel screening device for swinging bridge construction, which comprises a support, a top slide bar, a connecting pipe and a stirring bar. A delivery pipe is fixedly installed on the outer surface of the support. The groove and the delivery pipe are connected to each other, the side slide bar is fixedly installed with the inner side of the support, the inner side of the support is connected to the vibration plate through the vibration spring, and the connecting pipe is fixedly installed at the middle position of the lower end of the delivery pipe. The inside of the drive rod is reserved with an internal chute, the outside of the limit block is connected to the drive rod through a telescopic rod, the screen is fixedly installed inside the lower surface of the screening frame, and the outside of the push rod is connected to There is a drum. The sand and gravel screening device for swing bridge construction adopts a new structural design, which makes the device convenient for sorting and loading sand and gravel through the mechanical transmission mechanism, which is relatively labor-saving to use, and the device is equipped with an anti-clogging mechanism to keep processing fluency.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a sand and gravel screening device for swing bridge construction. Background technique [0002] Bridge construction technology requires high precision and load-bearing performance. During the construction process, the requirements for materials are higher than those for ordinary facade construction. Some basic materials such as sand, cement, etc. have certain requirements for quality and purity. Doped with more large stone structures, the purity is low, which does not meet the requirements of road and bridge construction materials. Before the materials are mixed and processed, the sand and gravel need to be screened to improve the purity of the sand and gravel. [0003] With the continuous processing and use of the sand screening device, the following problems were found during use: [0004] 1. There are many sand and gravel materials needed in the bridge constructio...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of sand and gravel screening device that swing type bridge construction is used, to solve above-mentioned background technology and propose the sand and gravel material that needs in the bridge construction process is more, and the workload of screening processing is bigger, existing part The screening device is not convenient for autonomous classification and loading and unloading during the processing process. Before and after processing, it is necessary to manually load the material or clean the material in the screening device. It is laborious to use, and the sand and gravel structure is small, and it is easy to block during continuous processing. Inside the device, at the same time, the sand and gravel are concentrated on the side of the screen during the discharge screening, which is easy to block the mesh and affect the screening process.

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