Gravel screening device for oscillating bridge construction

Abstract

The invention discloses a gravel screening device for oscillating bridge construction. The device comprises a support, a top sliding rod, a connecting pipe and a stirring rod. A conveying pipe is fixedly installed on the outer side face of the support. The top sliding rod and the conveying pipe are connected with each other through a top chute. A side edge sliding rod is fixedly installed on the inner side of the support. The inner side of the support and a jolting plate are connected with each other through vibration springs. The connecting pipe is fixedly installed in the middle of the lowerend of the conveying pipe. An inside chute is reserved inside a transmission rod. The outer side of a limiting block and a transmission rod are connected with each other through a telescopic rod. Screen cloth is fixedly installed inside the lower surface of a screening frame. A rotary barrel is rotationally connected with the exterior of a push rod. According to the gravel screening device for oscillating bridge construction, because a novel structural design is adopted, the device can be used to carry out classification, feeding and discharging on gravels through a mechanical transmission mechanism conveniently, and the device can be used with less efforts; and because a blocking prevention mechanism is arranged in the device, processing is kept smooth.

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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