RU234130U1 - COMBINED DEVICE FOR WASHING AND CRUSHING ROOT CROPS - Google Patents

Abstract

The utility model relates to the field of processing agricultural products and can be used for washing and chopping root crops. A combined device for washing and chopping root crops contains a hollow body with a loading funnel. Nozzles are located diametrically on the horizontal axis of symmetry of the body at an angle α to the vertical axis of symmetry of the body, and slots are made in the lower part of the body. The feed auger installed in the cavity of the body, each turn of the helicoid of the feed auger is formed by two sickle-shaped knives with cutting edges made on the end arc-shaped working face and along the outer periphery, the sharpening of which is made at an angle of no more than 20°. The chopping element is made in the form of a knife. The unloading window is covered with a deck. The device is mounted on a frame consisting of four supports, between which a pallet is fixed, the bottom of which is made with slopes toward the drain pipe. The sickle-shaped knives on the auger section under the nozzles are formed by fragments of a steel spiral tape connected to the auger shaft with spokes. The production of sickle-shaped knives on the auger section under the nozzles in the form of fragments of a steel spiral tape connected to the auger shaft with spokes will improve the quality of root crop washing and reduce the metal consumption of the device.

Description

The utility model relates to the field of processing agricultural products and can be used for washing and chopping root crops.

A combined device for washing and chopping root crops is known (Patent RU No. 205543, published 20.07.2021 Bulletin No. 20), including a hollow body with a loading funnel, nozzles are located diametrically on the horizontal axis of symmetry of the body at an angle α to the vertical axis of symmetry of the body, slots are made in the lower part of the body, a feed auger installed in the cavity of the body, each turn of the helicoid of the feed auger is formed by two sickle-shaped knives with cutting edges made on the end arcuate working face and along the outer periphery, the sharpening of which is made at an angle of no more than 20 °, a chopping organ made in the form of a knife, an unloading window covered by a deck, the device is mounted on a frame consisting of four supports, between which a pallet is fixed, the bottom of which is made with slopes towards the drain branch pipe.

The disadvantage of this device is the insufficiently high quality of root crop washing.

The purpose of the utility model is to improve the quality of root crop washing.

This goal is achieved by the fact that the sickle-shaped knives on the section of the auger under the nozzles are formed by fragments of a steel spiral tape connected to the auger shaft by spokes.

Fig. 1 shows a front view of a combined device for washing and chopping root vegetables.

Fig. 2 shows section B-B in Fig. 1.

Fig. 3 shows a right-hand view of a combined device for washing and chopping root vegetables.

Fig. 4 shows a bottom view of the hollow body in the sink area.

A combined device for washing and chopping root crops comprises a hollow body 1 with a loading funnel 2. Nozzles 3 are arranged diametrically on the horizontal axis of symmetry of the body 1 at an angle α to the vertical axis of symmetry of the body 1. Slots 4 are made in the lower part of the body 1. The feed auger 5 is installed in the cavity of the body 1, each turn of the helicoid of the feed auger is formed by two sickle-shaped knives formed by fragments of a steel spiral belt 6 with cutting edges 7 made on the end arc-shaped working face and along the outer periphery, the sharpening of which is made at an angle of no more than 20°, connected to the shaft of the auger 5 by spokes 8. The chopping element 9 is made in the form of a knife. The unloading window is covered by a deck 10. The deck 10 is made in the form of a round separating plate with through holes of different sizes. The drive of the feed auger 5 and the grinding element, made in the form of a knife 9, is carried out by means of a gearbox 11. The device is mounted on a frame 12, consisting of four supports, between which a tray 13 is fixed, the bottom of which is made with slopes towards the drain pipe 14.

The combined device for washing and chopping root vegetables works as follows.

Root crops, entering from loading funnel 2 into hollow body 1, moving along feed screw 5, are subjected to intensive treatment with water supplied under pressure of 6...8 bar by nozzles 3 connected to a pump, which in turn is connected to the central water supply network.

Simultaneously with washing, the root crops are subjected to the action of two sickle-shaped knives located on the feed auger 5.

The process of destruction can be imagined as the work of a wedge in crushing and breaking.

In general, the process of separating the first part of the root crop from the main part can be represented as follows:

at the first moment, the tips of both knives “enter” the body of the root crop to a certain depth and experience the action of forces, while each tip of the sickle-shaped knife acts differently:

one of the sickle-shaped knives will generally perform the role of an instantaneous center of rotation (the fulcrum), and the other will press the smaller part of the root crop away from the larger one, simultaneously rotating the root crop around the said center; the next moment, this same sickle-shaped knife 6 will advance into the partially rotated root crop and enter even deeper until the end of the destruction process;

as a result of the separation of part of the root crop from the main mass, the remaining part changes its position relative to the sickle-shaped knife (due to rotation) and comes under the action of the following knives after half a turn and so on until it acquires dimensions comparable to the dimensions of the auger channel.

The material then exits through the discharge window and, if necessary, can be additionally crushed by knife 9, with the degree of crushing being regulated by deck 10 with a correspondingly sized through sector or number of blades of knife 9.

The production of sickle-shaped knives on the auger section under the nozzles in the form of fragments of a steel spiral tape connected to the auger shaft with spokes will improve the quality of root crop washing and reduce the metal consumption of the device.

Claims (1)

A combined device for washing and chopping root crops, comprising a hollow body with a loading funnel, nozzles arranged diametrically on the horizontal axis of symmetry of the body at an angle α to the vertical axis of symmetry of the body, slots made in the lower part of the body, a feed auger installed in the cavity of the body, each turn of the helicoid of the feed auger is formed by two sickle-shaped knives with cutting edges made on the end arcuate working face and along the outer periphery, the sharpening of which is made at an angle of no more than 20 °, a chopping element made in the form of a knife, an unloading window covered by a deck, the device is mounted on a frame consisting of four supports between which a pallet is fixed, the bottom of which is made with slopes towards the drain pipe, characterized in that the sickle-shaped knives on the section of the auger under the nozzles are formed by fragments of a steel spiral belt connected to the auger shaft with knitting needles.

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