SU1659334A1 - Device for unloading of transport vehicles - Google Patents

Abstract

The invention relates to the field of unloading fruits and vegetables from cars. New is that. that an additional tray attached to the main flexible connection is fixed above the receiving hopper, the main tray is kinematically connected to the platform for vehicles. The invention makes it possible to increase productivity and reduce the damageability of the load. The purpose of the invention is to increase productivity while reducing the damage of the cargo during unloading of cargo 5 Il.

Description

The invention relates to the mechanization of unloading operations and concerns the unloading of bulk and bulk cargoes, including root and tuber crops from automobiles.

The purpose of the invention is to increase productivity while reducing the damage of the cargo during unloading of root and tuber crops.

FIG. 1 shows an installation for unloading vehicles; figure 2 - bridge hopper; on fig.Z - installation immediately before the start of unloading; Fig 4 - installation at the time of unloading; Fig. 5 shows the junction of the main tray and the platform.

The installation comprises a base 1, a hinge 2, a turntable 3, a drive of the platform in the form of a hydraulic cylinder 4. Above the part of the base forming the receiving bin 5, the main 7 and an additional 8 trays are fixed by means of the hinges 6. On the tray 7, a lever 9 is fixed, connected by a flexible coupling 10 with a tray 8. The drive of the tray 7 is a hydraulic cylinder 11. From the end, the hopper 5 covers the walls 12. Above the trays 7 and

8, sealing boards 13 and 14 are installed. Ј The conveyor conveyor 15С / 1 is placed in the lower part of the bunker 5

Platform 3 has fingers 16 placed in grooves of m r 17 hinged on tray 7.Z

The working fluid is supplied to the hydraulic cylinder 11 through the distributor 18. The piston cavity of the hydraulic cylinder 11 communicates with the valve 19 adjusted O for the pressure of the working fluid corresponding to the force of the weight of the load in the initial Q position (Fig. 3). cylinder 11 is connected with a check valve g 20. Opposite conclusions | valves 19 and 20 are connected to a hydraulic tank 21,

A bridge consisting of two sections is intended for the arrival of vehicles onto platform 3. The first section 22 is hinged on the base 1, and the second section 23 is pivotally connected to the first. A hydraulic cylinder 24 is designed to rotate the bridge. A semi-block 25 and a cable 26 are rigidly mounted on the second section 23 of the bunker, the end of which is fixed on the base 1. Onv

The position of the bridge is unfolded, resting on a stop 27 located on the end installations 12.

To hold the vehicle on the turntable 3, the latter is provided with a movable stop 28.

The installation for unloading vehicles operates as follows.

The vehicle enters from the bridge side onto platform 3. After that, stops 28 are raised. Then, the working fluid is supplied to the rod cavity of the hydraulic cylinder 24, the stem of which starts to retrace and section 22 starts to rise. At the same time, section 23 begins to rise, turning around the axis of the semi-block 25, winding a cable 26 on it, which is composed in a tensioned position and having a constant length, causes the sections 22 and 23 to fold according to a certain kinematic dependence;

Under the action of the force of the hydraulic cylinder 4, the platform 3 begins to rise. At the same time, the service personnel opens the tailgate of the car body. After platform 3 has reached a certain angle of inclination, the fingers 16 select the entire length of the groove m 17, then, with a further rise of the platform 3, the latter generates a force through the bar 17 that tends to retract the hydraulic cylinder 10 rod. 19, the latter is opened to drain the working fluid into the tank. The rod of the hydraulic cylinder 10 is drawn into the rod cavity, the working fluid is sucked from the tank 21 through the check valve 20. The trays 7 and 8 are lowered while the platform 4 is raised simultaneously.

Thus, when the platform is raised, the walls 7 and 8 simultaneously rotate and the distance from the body of the vehicle being unloaded to the walls — i.e. the height of the drop of the load (the root crop) remains constant and permissible from the point

sparing unloading. Upon further lifting of the platform, the load from the body begins to fall out more intensively, and when platform 3 reaches the critical angle (for a given load), trays 7 and 8 receive such a load that on the cylinders 10 a force is sufficient to create pressure in the piston cavity working fluid, opening the valves 19, and further lowering the movable trays 7 and 8.

Thus, a quick but gentle (for the cargo) unloading of vehicles takes place. At the same time the capacity of the bunker can

to be greater than or equal to the vehicle body capacity, which guarantees greater productivity, since the total time for lifting the platform does not depend on the basic features of the installation and

to be any small. And the time of sampling cargo from the bunker can be blocked by the time of lowering the platform, exit and arrival of vehicles. Thanks to this, the drive power of the conveyor can also be

reduce.

Claims (1)

Claims The installation for unloading vehicles, comprising a base with a rotary platform hinged on it, a receiving bunker with a fixed non-wall under the platform with the possibility of turning in a vertical plane by a tray, the drives of rotation of the platform and the tray, so as to increase performance while reducing the damage of the cargo during unloading, it is equipped with an additional rod mounted on the opposite wall of the bunker from the main tray Strongly rotation in verti.- focal plane and mounted on the main tray lever, the latter being connected to an additional chute via a flexible connection, and the main tray kinematically coupled with the platform. z zg 1 2Лф s yr I /// 5 LZ S Y / c 9 6 dg herb991 x //////// xxr //. Fig.Z