SU837990A1 - Sand spreader - Google Patents

Description

(54) SPREADER

The invention relates to machines for the distribution of bulk materials on pavement, used in municipal and road facilities.

The closest device is a sand spreader containing a body mounted on the chassis of the base machine with a feed scraper conveyor mounted on the bottom, a slide gate on its rear wall and a spreading disc placed under the neck of the rear wall of the body l.

The said sand spreader is characterized by insufficient reliability of the device and the possibility of breakage due to the ingress of stones or large pieces of material.

i The purpose of the invention is to ensure safety and reliability.

This goal is achieved by the fact that a sand spreader containing a body mounted on the chassis of the base machine with a feed scraper conveyor mounted on the bottom, a slide gate on its rear wall, and a spreading disc placed under the back of the rear wall of the body, is provided with a transverse

a partition and a safety device in the form of an inclined lattice and a box-shaped trap placed in a window formed in the throat under the lower ends of the lattice rods, the upper ends of the rods of which are rigidly fixed inside the throat, and the transverse partition is installed in front of the gate valve,

0 and the free passage below it becomes the last free passage.

FIG. 1 shows the body of a sand spreader, general view; 2 FIG. flap, top view.

. The sand spreader comprises a body 1 with a rear wall 2 on which a spring-loaded gate valve 3 is installed. A scraper conveyor 4 with scrappers 5 and a driving sprocket 6 is located on the bottom of the body 1. The neck 7 is fixed on the rear wall 2 for feeding material to the spreading disk 8. The mouth 7

installed inclined grille 9,

consisting of rods made of elastic material. The wall of the neck 7 is made with a window 10, under which a box-trap 11 is installed

Claims (1)

for collecting stones. In the body 1, in front of the gate valve 3, it is fixed transversely to the partition 12, the lower edge of which is located above the lower edge of the gate 3, so that the free passage under the partition 12 exceeds the free passage. Under the gate valve 3, the gate valve 3 is mounted on the axis 13 fixed to the rear wall 2 of the body and cooperates with an elliptical spring 14 fixed with its ends to the eyelet 15 of the rear wall 2 of the body 1. The damper gate 3 is made with a movable part 16 that can move vertically for changed the height of the flow section of the material supplied by the conveyor 4. The fins of the movable part 16 relative to the slide valve 3 are made using pivot brackets 17, which cooperate with the stop 18 fixed on the slide gate 3. Staples 17 have different distances from their faces 19 and 20 to the axis of rotation. Therefore, when the clamps 17 are rotated, the height of the flap is changed. The stop 18 prevents the slide valve 3 from moving inside the body under the action of an elliptical spring 1 4. The rod of the inclined lattice 9 is fixed with the upper ends in the neck 7 with the help of bolts 21. The lower ends of the rods of the lattice 9 are separated from the lower edge of the window 10 at some distance. The device works as follows. When the scraper conveyor is turned on, the material, the passage under the transverse partition 12 and under the gate valve 3 with the movable part 16, passes through the neck 7 to the spreading disk 8. When a large stone or frozen pieces of material fall under the spring-loaded gate, the valve deflects and prevents the latter as well as conveyor scrapers and drive units. Stones and frozen pieces of material freely pass under the transverse partition and gate, and then are held above the rods of the inclined grate 9 installed in the neck, slide along it and through window 10 fall into the box-shaped trap 11, from which they are removed at the end. The use of the proposed sand spreader ensures the safety of pedestrians and increases its reliability. Invention Form A sand spreader comprising a body mounted on the chassis of a base machine with a feed scraper conveyor mounted on the bottom, a gate valve on its rear wall, and a spreading disc placed under the neck of the rear wall, characterized in that, in order to ensure safety and reliability of operation provided with a perpendicular partition and a safety device in the form of an inclined grid and a box-shaped trap placed in a window formed in the throat under the lower ends of the rod s lattice rods .kotoroy upper ends rigidly secured within the neck, a transverse partition mounted in front of the damper, wherein the free passage of its pre-. out the free pass last. Sources of information taken into account in the examination 1. LM Gusev. Fight against skolzskostyu orodskikh roads. Stroyizdat, 1964, p. 49-51.