SU1632803A1 - Harvester cabin - Google Patents

Abstract

The invention relates to transport engineering and can be used in the cabins of agricultural mobile machines operating in hot climates. The purpose of the invention is to increase the efficiency of cooling air in the cabin. This goal is achieved in that in the vehicle cabin, consisting of front, rear, side panels, as well as a double floor base. 2. One of the surfaces of the double base on the inner side is provided with radially arranged ribs 4, some of which near the center are formed by needle-shaped protrusions 5. The spacing of the projections 5 increases towards the center of the floor. There is an air gap between the ribs 4 and the second (lower) part of the double base. 1 hp ff, 2 ill. -A YOU W 45 DO

Description

Phage. 2

The invention relates to transport engineering and can be used in the cabins of agricultural mobile machines operating in hot climates.

The purpose of the invention is to increase the efficiency of cooling air in the cabin.

FIG. 1 shows a cabin, side view; in fig. 2 is a section A-A in FIG. one.

The cabin consists of a frame 1, a double base, the upper part of which is a field 2, provided on the side of the second part 3 with ribs 4, the central part of which is formed by needle-shaped projections 5. The cabin also includes a cover 6, a front 7, a rear 8 and side 9 panels . The ribs 4 are located radially relative to the center of the base. The needle-like protrusions 5 are arranged in increments increasing towards the center of the circle with radius R bounding the area of the needle-like part of the ribs.

When the tractor unit operates in the warm period of the year, the sun rays pass through the glazed panels 7-9. fall on the surface of the floor 2, leading to their heating. The ribs 4 provide the intensity of heat transfer from the floor 2 to the air. The radial arrangement of the fins 4 ensures the independence of the heat flow from the floor 2 from the direction of the wind and the direction of movement of the unit.

A counter-flow of air arising from the movement of the unit, and the wind of any direction will pass between the ribs, away from them the excess heat due to the needle-shaped fins in the center of the floor with radius R.

To ensure uniform heat dissipation from the floor, 2 needle positions

the needle-like part of the ribs increases towards the center

To increase the thermal insulation of the double bases, there is an air gap between the surfaces of the double base. With a particular implementation of the outer surface of the double base, a horizontal surface can be used where the cabin is installed,

In the cold period, a shutter is provided to close the air gap between the base of the floor.

Application of radially arranged double-base ribs with ribs

helps to improve the microclimate of the cabin. In particular, heat losses to the cabin from the floor and temperature differences in the cabin are reduced.

Claims (2)

1. A vehicle cabin containing a cover, front, rear and side panels and a double base forming a covered space, the upper part of which is a floor, characterized in that, in order to increase the cooling efficiency of the air in the cabin, the floor on the side of the second base part is provided with vertical ribs located radially relative to the center of the base, the central part of which is formed by needle-like projections. 2. The cabin according to claim 1, wherein the needle-like portion of the ribs is located in an area bounded by a circle with a center coinciding with the center of the base, and the needle-like protrusions are arranged in increments towards the center of the circle. . l shr one 9 but -2 one BUT  N Fy