RU2222664C2 - Sand thrower - Google Patents

Abstract

FIELD: public services; agriculture. SUBSTANCE: invention can be used for throwing sand, salt and other loose materials on ice-covered roads and spreading of fertilizers on fields. Proposed device consists of truck (trailer) on frame of which two axles with working and support wheels are mounted, container for sand with gates and slots for working wheels, studs with nuts to regulate depth of penetration of working wheels in container slots. Working wheels are in container slots. Working wheels are provided with studs adjustable in height and number. Device can be operated by manpower, by animal(horse) and as trailer of road vehicle or tractor. EFFECT: simplified design of device, facilitated operation. 2 cl, 1 dwg

Description

 The technical field to which the invention relates.

 The sand scattering device belongs to the road sector and can be used to spread sand, salt and other bulk materials when ice is on pedestrian walkways, sidewalks and roads, as well as for spreading fertilizers in the fields. The device operates from human effort and can be made in the form of a trailer to vehicles or tractors.

State of the art
The most common "grandfather" method of scattering sand on footpaths with a spatula or a shovel from a bucket is known. The disadvantage is heavy manual and unproductive labor. A sand-spreading device (PR) is known to be mounted on a ZIL / 30 vehicle containing a sand container, at the bottom of which there is a screw for feeding sand to a centrifugal disk (see CL A 01 C 17/00). The screw and centrifugal disk are rotated from the power take-off shaft of the ZIL / 30 automobile.

The disadvantages of the device are as follows:
1. This device is practically impossible to use for scattering sand and salt on footpaths and sidewalks.

 2. The use of the device for small processing areas is economically disadvantageous.

 3. The device is installed permanently on the ZIL / 30 car, which cannot be used for other works.

 4. Using a car is environmentally harmful.

The purpose of the invention
The purpose of the invention is to simplify the design of the device and facilitate the work of workers.

SUMMARY OF THE INVENTION
This goal is achieved in that the device is made in the form of a trolley (trailer), on the frame of which two axles with impellers and support wheels are fixed, a sand tank with dampers and slots for the impellers and studs for regulating the depth of incision of the impellers in the container slit.

 This essential feature of the invention can significantly simplify the design of the device and its operation, as well as facilitate the work of the worker.

 Another significant feature of the invention is that the impellers are made with adjustable spikes in height and number.

 This significant feature of the design of the impeller with spikes increases the reliability of the device, allows you to change the dosage of sand in wide ranges by changing the number of spikes and their height above the surface of the impeller.

 Impellers with spikes perform an additional function - they destroy ice at the points of contact of the spikes with ice.

 The drawing shows a General view of the device, which includes a frame 1, a handrail 2, axles 3, impellers 4, support wheels 5, capacity 6, loops 7, studs 8, nuts 9, slots 10, shutters 11, studs 12 and nuts 13.

 Information confirming the possibility of carrying out the invention.

 The device for spreading bulk materials consists of a frame 1 with a handrail 2 controls, two axles 3 for working 4 and supporting 5 wheels. A container 6 for sand is fixed to the frame 1 on loops 7 and studs 8 with nuts 9. In the container 6, slots 10 are made to accommodate the impellers 4.

 Slots 10 are partially blocked by height-adjustable flaps 11. On the impellers, height-adjustable spikes 12 with nuts 13 are screwed.

Principle of operation
Sand or other bulk material is poured into the container 6, the handrail 2 is lowered down to tear off the impellers 4 from the road surface and the device is transported on the support wheels 5 to the area for spreading sand onto ice. During the transportation of the device, the impellers 4 do not touch the road, do not rotate and do not scatter sand onto the road, then lower the impellers 4 downward by moving the handrail 2 upwards until the support wheels 5 are torn off the road and roll the device on ice. The impellers 4 are driven in rotation by road friction. From the tank 6 through the slots 10 with spikes 12 and the rim of the wheel 4, sand is scattered on the road. The spikes 12 provide a reliable grip of the wheels 4 with the road when ice.

The dosage is adjustable:
1. The depth of penetration of the impellers 4 in the slit 10 of the tank 6. The depth of penetration is regulated by nuts 9 on the studs 8.

 2. Overlapping the slots 10 shutters 11.

 3. By changing the height of the spikes 12 above the rim of the wheel 4 using a threaded connection.

 4. The change in the number of spikes 12.

 5. Due to the slip of the impellers 4 relative to the road when the load is redistributed from the weight of the device from the impellers 4 to the support wheels 5 by raising or lowering the handrail 2.

Claims (2)

1. A sand scattering device comprising a frame with a handrail, wheels and a sand tank, characterized in that the device is made in the form of a cart (trailer), on the frame of which two axles with impellers and support wheels are installed, a sand tank with dampers and slots for impellers and studs with nuts for regulating the depth of incidence of impellers in the gap of the container. 2. The sand scattering device according to claim 1, characterized in that the impellers are made with spikes adjustable in height and number.