SU1678296A1 - Root and tuber washing device - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to fodder production, machines for washing root and tuber crops and separating stones. The purpose of the invention is to increase the operational reliability of washing. A device for washing root and tub crops includes a washing tub with a rotating cone disk at the bottom of the tub and a shaftless vertical auger mounted above it on a common trunnion for washed root and tubular crops and a discharge window adjacent to the disc in the side surface of the bath with a conveyor of impurities in the form of a rod 7 placed 7 in the side of the bath driven 8 lower and leading upper supports and an endless chain 10 with scrapers 11. The leading support of the transport is located in two earrings 18, pivotally installed at the lower ends on the casing 24 Porter. It is advisable to place the earrings at an angle of 6-9 °. relative to the longitudinal axis of the conveyor of removal of impurities, and the points 26 of their attachment to the casing 24 to be placed under it. The capacity of the conveyor to remove impurities in height is self-regulated, which increases the operational reliability of the device. 1 hp ff, 6 sludge, (L S

Description

FIELD OF THE INVENTION The invention relates to fodder production, in particular, to machines for washing the roots of the tubers and the separation of impurities.

The purpose of the invention is to increase operational reliability.

FIG. 1 shows the device, the cross section; in fig. 2 — impurity removal conveyor; in fig. 3 is a view A of FIG. 2; in fig. 4 shows a section BB in FIG. 3; in fig. 5 shows a section B-B in FIG. 3; in fig. 6 - scheme of action of forces.

The device for washing the root-and-field crops includes a washing tub 1, a vertically installed in-ground conveyor auger 2 for draining the washed root-crops with a tapered disc 3 on

the lower pin of the screw 4. In the side surface of the bath 1 there is an discharge port 5 for heavy impurities. The window 5 is adjoined by an impurity removal conveyor 6, made in the form of a rod 7 with the lower driven 8 and the top leading 9 supports and an endless chain 10 with scrapers 11. The leading support 9 is made in the form of a plug 12 with supporting pins 13 and is connected to the rod 7 by bolts 14 for tensioning the chain 10. Inside the bearing pins 13 there is a drive shaft 15 of the knowledgeable 16 and the drive shaft with 17 asterisks. Each bearing pin 13 with its outer surface is pivotally mounted in the upper part of the corresponding

oh h

00

yoo o

ABOUT

earrings 18. For convenience of mounting the vtu / csi conveyor, these are hingedly made in the form of two brackets 19 connected by bolts 20. Earrings 18 are interconnected in the upper part by means of a U-shaped bracket 21, the lower part of each earring 18 is hinged through the pin 22 and the sleeve 23 to the conveyor casing 24, remove impurities and contact the restrictor 25. The height of these limiters 25 of the earrings 18 are inclined at an angle of 6-9 ° to the longitudinal axis of the conveyor for removing impurities, and their attachment points 26 to the casing 24 are located under The drive sprocket 17 is connected by a chain drive 27 to a conveyor drive (not shown),

The device is as follows.

Corn-tubers loaded into the pre-filled washing tank 1, while rotating the auger 2 with disc 3, are slowly directed along the side surface of the disk cone to the periphery of the bottom of the bath and float due to the fact that their density only slightly exceeds the density of water (1080 kg / m3), Rotating in a vortex flow of water and grinding between themselves, the roots and tubers are washed and in the upper part of the bath they are picked up by an empty auger, transported by them and unloaded. Severe impurities and dirt due to their density, which is much higher than the density of water, are not able to float up and collect around the periphery of the side surface of the tapered disc 3, which transports them to the discharge window 5. The conveyor 6 for removing impurities with its scrapers 11 carries these impurities beyond baths 1. In the event of ingress of large impurities (stones exceeding the height of the scraper), the lower knowledge of the support 8 of the conveyor 6 rises due to the rotation of the transport in the sleeves 23. Due to the change in the angle of inclination of the conveyor and the appearance of The relative resistance from jamming of the stone changes the ratio of torques acting relative to the axis OOi (hinged sulfur on the casing 24), as a result, the earrings 18 rotate counterclockwise, and the upper support 9 rises, skipping the stone.

Under normal conditions, the torque (Mo), lowering the upper support 9 to the stops 25, exceeds the sum of the moments

(Mp) lifting support 9 (from the tension of the drive chain). In addition, the optimum ratio of these moments occurs when the serings are at an angle of / 6 - 9 ° (see the force diagram) with respect to

the longitudinal axis of the conveyor remove impurities and at the location of their attachment points to the casing 24 under the drink. With an increase in this angle, the moment Mo decreases, then a slight resistance

on the scrapers 11, it will lead to raising of the support 9 and the loss of the efficiency of the conveyor to remove impurities on small stones and dirt. Reducing this angle and reversing it.

the side of the longitudinal axis of the conveyor significantly increases the moment of lowering the earring M0, which will not allow the upper support 9 to rise from the additional resistance against the jamming of stones.

Thus, in this technical solution, the height of the impurity conveyor throughput is self-regulated in height. This allows the latter to work equally effectively on small as well as large heavy impurities. This, without complicating the design, significantly improves the operational reliability of the device for washing the root-and-vegetable crops.

Claims (2)

1. A device for washing of root-and-vegetable crops, including a washing tub with a vertical auger mounted in it with a fixed auger its shaft with a tapered disc, an outflow window made in the bath and a conveyor for removing impurities in the casing with upper and lower supports mounted in supporting trunnions, characterized in that, in order to increase operational reliability, it is equipped with two earrings located on both sides of the upper support of the impurity removal conveyor, each bearing pin of the upper The supports are pivotally mounted in the upper part of the corresponding earring, and the lower part of each earring is pivotally attached to the casing of the conveyor for removing impurities. 2. Device pop. 1, characterized in that the studs are arranged at an angle of 6-9 ° relative to the longitudinal axis of the impurity removal conveyor and mounted so that their points of attachment to the casing of the latter is located under the axle. 9 Fig: 2 view A is covered Fig, 3. 17 5-5 - $ Fi.by t Oh 18 FIG. 6