RU2073632C1 - Hopper for loose materials - Google Patents

Abstract

FIELD: mechanical engineering; hoppers for grain cleaners and seed cleaning lines. SUBSTANCE: loose material passes along charging branch pipe 7 into container 8 made of flexible material being stretched out before charging by means of springs 9 compressed at this moment. In process of charging, springs 9 extend and flexible container 8 made to suit form of housing 1 moves towards side walls 2 and bottom 3 made in form of grates 5 reinforced by ribs 6. When container is filled with material to charging branch pipe level, charging is stopped. At discharging, when pressure of loose material onto flexible container 8 decreases, the latter is lifted under action of springs 9, and material is forced out through discharge branch pipe onto transportation vehicle. EFFECT: reduced metal usage. 4 dwg

Description

 The invention relates to mechanical engineering, in particular to the design of silos on grain cleaning units and seed cleaning lines.

 Known bunker consisting of a housing, which includes vertical side walls, inclined bottom walls, cover, loading and unloading devices (USSR Author's Certificate N 1806542 A 01 F 12/60 s. 27.12.90, publ. 7.04.93).

 The main disadvantage of the technical solution is the design complexity, high metal consumption, insufficient use of the working volume.

 Closest to the claimed device in technical essence is a hopper for easily damaged materials, including a housing with loading and outlet pipes, a lifting mechanism, elastic elements, some ends of which are fixed on the upper and lower edges of the housing by clamping rings, and the other ends are connected with loading and output pipes, moreover, the outlet pipe is equipped with a grid and a vibrator, and the housing flange is mounted on the rod of the pneumatic cylinder (USSR Author's Certificate N 1661074 A 1 B 65 D 88/26 of July 27, 89, published July 7, 91).

 The main disadvantage of the technical solution is the high metal consumption, since the bottom and side walls of the body are made whole, which requires high consumption of materials (metal).

 The proposed device allows to solve the technical problem that occurs in the above known technical solutions, namely, it provides such a technical result as reducing the metal consumption of the device.

 The technical result, which consists in reducing the metal consumption of the hopper, is achieved by the fact that in the hopper for bulk materials containing a housing with loading and outlet nozzles, a bottom, side walls, an elastic container placed inside the housing, the middle part of which is fixed to the upper edges of the housing, and the upper and the lower ends are connected by loading and outlet pipes, the mechanism for raising the capacity, the bottom and side walls are made in the form of gratings and equipped with stiffeners.

 The implementation of the side walls and the bottom of the body in the form of gratings and supplying them with stiffening ribs allows you to reduce the metal consumption of the hopper, which saves metal and simplifies the design by reducing metal consumption, which is especially important for bunkers with bulk material equipped with elastic containers (materials), so as bunkers, used mainly in grain cleaning units and on seed cleaning lines, they usually have large overall dimensions. The proposed distinctive essential features in combination with other essential features of the device allows you to obtain the desired technical result, that is, to reduce the metal structure.

 Thus, the proposed set of essential features, given in the claims and providing, in contrast to the prototype, a new technical result, which consists in reducing the metal consumption of the device, is not obvious from the achieved technical level and, therefore, the proposed technical solution meets the criterion of "inventive step".

 When conducting a search for the novelty of the claimed facility, bunkers for bulk materials according to the claimed formula from the prior art were not found, from which we can conclude that the proposed technical solution is new.

 Analysis of the interaction of the features of the proposed device when working in a production environment allows us to conclude that it is industrially applicable.

 In FIG. 1 shows a general view of the hopper in the loading position, a longitudinal section; in FIG. 2 general view of the hopper in the unloading position, longitudinal section; in FIG. 3, view A in FIG. one; in FIG. 4, view B in FIG. one.

 The hopper for bulk materials contains a housing 1 made of side walls 2 and a bottom 3, equipped with an outlet pipe 4, and the side walls 2 and the bottom 3 of the housing 1 are made in the form of gratings 5 and provided with stiffeners 6. The upper part of the housing 1 is equipped with a loading pipe 7 Inside the housing 1 there is an elastic container 8 having the shape of the housing 1, which is attached by its lateral surface to the upper edges of the housing 1, and the upper and lower ends of the container 8 are connected by the loading 7 and output 4 pipes. To bring the container 8 into working position, there is a mechanism for lifting the container 8, made at least in the form of four springs 9, mounted on the outside of the side walls 2 of the housing 1. Each of the springs 9 is connected via a cable 10 and a roller 11 mounted in the upper part of the housing 1 with the outer surface of the tank 8.

 The hopper for bulk materials works as follows. Before loading the hopper, an elastic container 8 made of tarpaulin, under the action of the springs 9 of the lifting mechanism of the container 8 is in a tense state (Fig. 2), and the outlet pipe 4 of the housing 1 is closed by a shutter (not shown). In the process of filling the hopper with bulk material, for example, wheat grains, which enters the housing 1 through the loading nozzle 7 of the spring 9, they begin to stretch under the action of the weight of the bulk material and their free ends move up. At the same time, the elastic material of the container 8 moves towards the side walls 2 and the bottom 3, made in the form of gratings 5, reinforced with stiffeners, in contact with them. When filling the hopper with bulk material to the level of the loading pipe 7 loading stops. When unloading bulk material from the hopper, the flap of the outlet pipe 4 opens and the bulk material enters the vehicle (not shown). In the process of unloading, the pressure of the bulk material on the elastic container 8 decreases, which, under the action of the springs 9, rises up, while providing an angle between the elastic container 8 and the plane of the bottom 3 greater than the angle of friction between the unloaded bulk material and the elastic capacity 8, which accelerates the discharge of the unloaded bulk material by gravity in the middle of the bottom 3, i.e. to the outlet pipe 4 of the housing 1.

 Overall dimensions of the bunker: width is 4 m; length 4 m; height 3 m. Lattices of the side walls and the bottom are made of steel wire 6.0-2-10 GOST 5663-79.

.Sizes of a lattice: 200 x 200 mm. The stiffeners of the bottom are made of channel 10 GOST 8240-89, and the stiffeners of the side walls from the corner

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Claims (1)

 A bulk material hopper comprising a housing with loading and outlet nozzles, a bottom, side walls, an elastic container located inside the housing, the middle part of which is fixed to the upper edges of the housing, and the upper and lower ends of the container are connected respectively with the loading and output nozzles and the container lifting mechanism characterized in that the bottom and side walls of the housing are made in the form of gratings and equipped with stiffeners.

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