Adjustable material door mechanism of spreading machine

Abstract

The invention discloses an adjustable material door mechanism of a spreading machine. A left material baffle (1) and a right material baffle (2) are mounted at a left feeding hole and a right feeding hole of a front end plate (3) respectively; a thread sleeve (5) is fixed on the front end plate (3) through a base plate I (7); a bearing seat (6) is fixed between the left material baffle (1) and the right material baffle (2); an upper-end thread section of a long screw rod (4) is matched with the thread sleeve (5); and a lower-end optical axis section of the long screw rod (4) penetrates through the bearing seat (6) and is mounted on the bearing seat (6) through a pair of upper and lower bearings (8). According to the adjustable material door mechanism of the spreading machine, the height of the material baffles can be accurately adjusted through only rotating the long screw rod, so that a material conveying amount is controlled; the material baffles move in a slide way and are accurately and reliably positioned; a supporting sleeve in the middle of the screw rod can be used for effectively preventing the long screw rod from being deformed; and bearings are mounted at the lower end of the long screw rod so that the screw rod can rotate flexibly and is smooth to operate.

Description

technical field [0001] The invention relates to a paver, in particular to an adjustable material door mechanism of the paver, belonging to the technical field of road construction machinery. Background technique [0002] The conveying and distributing system of the paver consists of a hopper, a material gate, a left and right scraper conveyor, a distributing box and a left and right screw distributor. The hopper is located at the front of the paver and is used to receive the mixture unloaded by the dump truck; the bottom of the hopper is a scraper conveyor; there are two movable hopper walls on the left and right, controlled by hydraulic cylinders to ensure the mixture in the hopper All of them are unloaded on the scraper conveyor; there are two material doors on the front plate of the frame of the paver linked to conveying and distributing materials, and the opening is controlled by the oil cylinder of each material door to control the passage of the mixture into the body a...

AI Technical Summary

Problems solved by technology

[0003] The material door is the key mechanism to control the material flow. In the prior art, the lifting height of the material door is mainly controlled by the hydraulic cylinder. The disadvantages are: 1. The hydraulic cylinder needs to be equipped with displacement sensors, servo valves and other equipment to control the stroke, and the cost is relatively high; 2. Most of the operating buttons for controlling the hydraulic cylinder are set in the cab, which is not convenient for paving personnel to intuitively control on-site

Images