RU187654U1 - Cleaning equipment rotor - Google Patents

Abstract

Usage: the utility model relates to agricultural machinery and can be used in devices for harvesting seeds of crops by combing plants on the vine.

The purpose of the utility model is to improve tow quality by reducing grain loss. Reducing the cost of manufacturing the rotor of the cleaning equipment, increasing the reliability of fastening removable combs with stiffeners to the rotor, increasing the reliability of the rotor of the cleaning equipment.

The essence of the utility model: the device contains removable combs with many teeth 1, each with a profile having a radially outward tapering section, removable combs have teeth 1 and a lower flange 2, teeth 1 are flexible in the transverse direction to the profile, teeth 1 have a stiffener 3 in radial direction, while removable combs with teeth 1 are located end-to-end. Unlike the prototype in the inventive device, the rotor of the brushing equipment contains sequentially interconnected flat discs 4 mounted perpendicular to the axis of rotation of the rotor of the brushing equipment. Flat disks 4 are interconnected by rows of rectangular plates 5, the generators of which are parallel to the axis of rotation of the rotor of the stripping equipment, each flat disk 4 in cross section perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a regular hexagonal polygon. Each projection of a polygon edge in a plane perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a truncated curve that varies according to a sinusoidal law. The curve is truncated in a straight line perpendicular to the axis of rotation of the rotor at its extremum. In the plane formed by the set of truncating straight lines, removable combs with teeth 1 are installed. The vertices of 6 teeth 1 are inclined in the direction of rotation of the rotor of the brushing equipment, and the described circumference of the rotor of the brushing equipment at the ends of the teeth 1 is a = 690 ... 710 mm. The rotor of the stripping equipment also has two hollow shafts 7 and 11 mounted on the ends of the rotor, while the axis of rotation of the hollow shafts 7 and 11 coincides with the axis of the rotor. The rotor of the stripping equipment has two trunnions 8 and 9 mounted on the axis of rotation of the rotor of the stripping equipment at its extreme points along the axis of its rotation. One of the pins 8 is used to transmit torque to the rotor of the cleaning equipment, and the second 9 to support the rotor of the cleaning equipment. Inside the hollow shaft 7, closest to the pin 8, which transmits torque at its extreme point along the axis of its rotation, an insert 10 having the shape of a hollow cylinder is rigidly mounted. Which has a groove located perpendicular to the axis of rotation of the rotor of the stripping equipment. The drive pin 8 at the end has a protrusion shape corresponding to the size of the groove in the insert 10.

Description

The invention relates to agricultural machinery and can be used in devices for harvesting seeds of crops by combing plants on the vine.

A device for combing grain on the root of the patent RU 2299551 [1] which contains a header mounted on an inclined chamber of a combine harvester, comprising a housing, a conveyor, a screw, a rotor on which rows of combing fingers are rigidly fixed. The rotor has additionally movable rows of stripping fingers installed in parallel rows of the main stripping fingers, made at an angle of 30 ... 35 °. The moving rows of stripping fingers are made in the form of straight rods having rollers at the ends, and the cheeks of the stripping rotor drum have arcuate protrusions on both sides.

The disadvantage of this device is that when harvesting crops with low humidity, as well as crops with high productivity, this device will have large losses, since when working at low humidity, any excess, in this case, side impact on the spike, leads to the grinding of grain, or breaking an ear. When harvesting crops with high productivity, the combing fingers, basic and mobile, will break off the spikelets, not having time to grab and compact the bread mass to the size of one stem of the harvested crop, while there will be a loss of broken spikelets.

Known for combining the device patent RU2471331 [2] comprising a frame on which a combing drum is installed, a screw, on the end sections of which spirals of the left and right directions of the turns are made. The cleaning device is equipped with a fairing covering the drum with a hydraulic system for moving it, and the cleaning drum is made in the form of an octagonal prism, on the edges of which combs with teeth are fixed, equipped with ribs to maintain the shape of the tooth and installed with the possibility of adjusting the rake angle, and the device is equipped with a lid. The fairing is made in the form of a volumetric welded structure, the external and internal surfaces of which are streamlined. The covers are made of windows, closed with a grid.

The disadvantage of this device is that during operation of the stripping device, the stripping drum having the shape of an octagonal prism creates a large air flow which blows free lightweight grain from the conveyor area of the screw, resulting in losses.

A known working unit of the stripping rotor RU 2456793 [3] which contains stripping combs with teeth, the first from the stripping comb of the lining plate with fingers, the second and third plates with fingers, respectively. The working unit is fastened to the rotor bracket using a fastener.

The disadvantage of this working unit is, firstly, the unreliability of the mount. Secondly, the manufacture of a tooth with different stiffnesses in length complicates the design and production, increases the cost of the working unit. Thirdly, low-quality tow and grain loss. This is due to the fact that the finger lining, having insufficient elasticity, does not allow the brushing teeth to bend sufficiently under the influence of the stand to mitigate the impact on the grain stand, as a result of which the plant stems, receiving an impact, break off, falling off on the field, increasing losses.

The closest in technical essence (prototype) is a grain sprinkler and brushing teeth WO 96/04776 [4], which has a rotating drum with rows of brushing teeth forming tooth elements made of a metal sheet and having a lower flange extending along the edges of the tooth profile. In the radial direction, the rear tooth elements have a flexible inner edge - allowing the teeth to bend when they hit an obstacle. The gear elements have slots in the inner edges for sliding on the clamping bolts, while the bolts are installed in special places in the drum. The fastening of the protrusions and grooves between the gear elements and their clamping surface reliably fix the elements when tearing the clamping bolt connection.

The design drawback is poor quality tow and grain loss due to the fact that the flat gear elements, hitting the stems, break off or tear them off, increasing the content of straw particles in the carved mass, in addition, the impact of the flat gear element leads to premature knocking of grains from the ear, t .e. to the losses.

The objective of the proposed utility model is to improve the quality of towing by reducing grain loss, as a result of the fact that the tops of the teeth are inclined in the direction of rotation of the rotor of the brushing equipment, allow you to smoothly grab the plants without causing a direct blow, thereby not damaging the grain. The ribs of the disks on which the removable combing combs are mounted are made according to a sinusoidal curve, which allow smoothly supplying the product to the area of the removable combing comb, reducing grain losses when exposed to the rotor of the combing equipment. In addition, the advantage of the proposed design is to reduce the manufacturing cost of the rotor of the cleaning equipment, increase the reliability of fastening removable combs with stiffeners to the rotor of the cleaning equipment, increase the service life of the rotor, as well as the reliability of the transmission of torque to the rotor.

The problem is solved as follows. The rotor of the combing equipment contains removable combs with many teeth 1, each with a profile having a radially outward tapering section, removable combs have a lower flange 2 and teeth 1, are flexible in the transverse direction to the profile, the teeth 1 have a stiffener 3 in the radial direction, while removable combs with teeth 1 are located end-to-end. Unlike the prototype in the inventive device, the rotor of the brushing equipment contains sequentially interconnected flat discs 4 mounted perpendicular to the axis of rotation of the rotor of the brushing equipment. Flat disks 4 are interconnected by rows of rectangular plates 5, the generatrix of which are parallel to the axis of rotation of the rotor of the stripping equipment, each flat disk 4 in cross section perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a regular hexagonal polygon. Each projection of the polygon edge in the plane perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a truncated curve changing according to a sinusoidal law. The curve is truncated in a straight line perpendicular to the axis of rotation of the rotor at its extremum. In the plane formed by the set of truncating straight lines, removable combs with teeth 1 are installed. The vertices of 6 teeth 1 are inclined in the direction of rotation of the rotor of the brushing equipment, and the described circumference of the rotor of the brushing equipment at the ends of the teeth 1 is equal to a = 690 ... 710 mm. The rotor of the stripping equipment also has two hollow shafts 7 and 11 mounted on the ends of the rotor, while the axis of rotation of the hollow shafts 7 and 11 coincides with the axis of the rotor. The rotor of the stripping equipment has two trunnions 8 and 9 mounted on the axis of rotation of the rotor of the stripping equipment at its extreme points along the axis of its rotation. One of the pins 8 is used to transmit torque to the rotor of the cleaning equipment, and the second 9 to support the rotor of the cleaning equipment. Inside the hollow shaft 7 closest to the axle 8 transmitting torque at its extreme point along the axis of rotation, an insert 10 having the shape of a hollow cylinder is rigidly mounted. Which has a groove located perpendicular to the axis of rotation of the rotor of the stripping equipment. The drive pin 8 at the end has a protrusion in the form corresponding to the dimensions of the groove in the insert 10.

The grain mass is in contact with the plates 5 repeating the shape of the ribs of the flat disk 4. Due to the fact that each projection of the polygon ribs in the plane perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a truncated curve that varies in a sinusoidal manner, a smooth, unstressed supply of the stripped grain mass to a removable comb occurs impact on the grain mass is reduced, grain loss and trauma are reduced.

Next, the combed mass falls into the zone of the teeth 1 of the removable comb. As a result of the fact that the vertices of the 6 teeth 1 are inclined in the direction of rotation of the rotor of the stripping equipment, a smooth grasp of the base of the spike occurs, the impact on it decreases, thereby reducing grain loss and injury.

Due to the fact that the flat discs 4 are interconnected by rows of rectangular plates 5, the generatrix of which is parallel to the axis of rotation of the rotor of the stripping equipment, structural rigidity is created.

Due to the fact that the drive pin 8 at the end has a protrusion in the form corresponding to the size of the groove in the insert 10, these elements when connected increase the reliability of torque transmission, as well as the durability of the rotor of the stripping equipment.

Thus, the named new set of common essential features provides the technical result indicated in the utility model problem.

The technical solution is illustrated by the drawings:

in FIG. 1 shows a General view of the rotor of the stripping equipment, isometry;

in FIG. 2 shows a view of the rotor of the stripping equipment in a longitudinal plane, a section;

in FIG. 3 shows a rotor of the stripping equipment in a transverse plane;

in FIG. 4 shows a rotor of a stripping equipment isometric in section;

In the drawings, the following notation:

1 - teeth; 2 - bottom flange; 3 - stiffener; 4 - disks; 5 - plates; 6 - the tops of the teeth; 7, 11 - a hollow shaft; 8 - axle of the drive; 9 - supporting pin; 10 - insert; and - the diameter of the circumscribed circle at the ends of the teeth of the combs.

The rotor of the stripping equipment (Fig. 1-4) contains removable combs with many teeth 1, each with a profile having a radially outward tapering section, removable combs have a lower flange 2 and teeth 1, are flexible in the transverse direction to the profile, teeth 1 have a stiffener 3 in the radial direction, while the removable combs with teeth 1 are butt. Unlike the prototype in the inventive device, the rotor of the brushing equipment contains sequentially interconnected flat discs 4 mounted perpendicular to the axis of rotation of the rotor of the brushing equipment. Flat disks 4 are interconnected by rows of rectangular plates 5, the generatrix of which are parallel to the axis of rotation of the rotor of the stripping equipment, each flat disk 4 in cross section perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a regular hexagonal polygon. Each projection of the polygon edge in the plane perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a truncated curve changing according to a sinusoidal law. The curve is truncated in a straight line perpendicular to the axis of rotation of the rotor at its extremum. In the plane formed by the set of truncating straight lines, removable combs with gear elements 1 are installed. The vertices of 6 teeth 1 are inclined in the direction of rotation of the rotor of the brushing equipment, and the circumference of the rotor of the brushing equipment at the ends of the teeth 1 is equal to, and = 690 ... 710 mm. The rotor of the stripping equipment also has two hollow shafts 7 and 11 mounted on the ends of the rotor, while the axis of rotation of the hollow shafts 7 and 11 coincides with the axis of the rotor. The rotor of the stripping equipment has two trunnions 8 and 9 mounted on the axis of rotation of the rotor of the stripping equipment at its extreme points along the axis of its rotation. One of the pins 8 is used to transmit torque to the rotor of the cleaning equipment, and the second 9 to support the rotor of the cleaning equipment. Inside the hollow shaft 7 closest to the axle 8 transmitting torque at its extreme point along the axis of rotation, an insert 10 having the shape of a hollow cylinder is rigidly mounted. Which has a groove located perpendicular to the axis of rotation of the rotor of the stripping equipment. The drive pin 8 at the end has a protrusion in the form corresponding to the dimensions of the groove in the insert 10.

The process of combing plants with a rotor in a stripping equipment is as follows (Fig. 1-4).

The rotor is mounted on stripping equipment. When performing harvesting operations, they include the rotor drive of the cleaning equipment, through the pin of the drive 8 and the hollow shaft 7 is rotationally driven. Equipment (for example, a header with a combine harvester) is sent to the pen. In the work of the cleaning equipment, the grain mass is in contact with the plates 5 repeating the shape of the ribs of the flat disk 4, and smoothly led to a removable comb with teeth 1, then the ears enter the comb comb area, where they are compacted and torn off from the stem with the release of tow products - grains and residues of ears . In the future, tow products due to the obtained kinetic energy from the comb by the air flow created by the rotor, moves to the conveying screw. The auger transports tow products to a combine harvester for complete threshing, separation of grain from plant residues and its collection in a hopper.

Using the inventive utility model allows to increase the completeness of towing ears (panicles, beans) of plants, reduce grain trauma, reduce the manufacturing cost of the rotor of the brushing equipment, increase the reliability of fastening removable combs, increase the service life of the rotor of the brushing equipment, as well as the reliability of the transmission of torque to it.

Information sources

1. Patent for invention No. 2299551 RU A01D 41/08 Device for towing grain on the vine, [text] / B.F. Tarasenko A.A. Help; A.N. Honey cake; G.G. Maslov. Application: 200537409/12, 01/01/2005. Publ. 05/27/2007, Bull. No. 15. - number of 5 s .; 4 ill.

2. Patent for invention No. 2471331 RU A01D 41/08 Scrubbing device, [text] / С.Р. Mkrtchyan; V.D. Ignatov. Application: 2010145325/13, 08/08/2010. Publ. 01/10/2013, Bull. No. 1. - number of 9 s .; 6 ill.

3. Patent for invention No. 2456793 RU A01D 41/08 Working unit of the cleaning equipment [text] / V.P. Kolinko; G.R. Ozone; V.A. Sabashkin; S.I. Suitcases and others. Application: 2010134072/13, 08/13/2010. Publ. 02.20.2012, Bull. No. 5. - number of 7 s .; 3 ill.

4. Patent for invention No. 96/04776 WO A01D 41/06 Grain harvester and brushing teeth, [text] / Gura, Henry, Alan et al. Application: 9416199.9, 08/11/1994. Publ. 02/22/1993 - count 8 s .; 8 ill.

Claims (1)

The rotor of the combing equipment containing removable combs with many teeth, each with a profile having a radially outward tapering section, removable combs have a lower flange and teeth, are flexible in the transverse direction to the profile, the teeth have a stiffener in the radial direction, while the removable combs with the teeth are end-to-end, characterized in that the rotor of the combing equipment contains sequentially interconnected flat discs mounted perpendicular to the axis of rotation of the rotor of the combing equipment, wherein the flat disks are interconnected by rows of rectangular-shaped plates, the form of which are parallel to the axis of rotation of the rotor of the stripping equipment, each flat disk in the cross section perpendicular to the axis of rotation of the rotor of the stripping equipment has the shape of a regular hexagonal polygon, each projection of the edge of the polygon in the plane perpendicular to the axis of rotation of the rotor of the stripping equipment, has the shape of a truncated curve, changing according to a sinusoidal law, while the line is truncated in a straight line perpendicular to the axis of rotation of the rotor at its extremum, and removable combs are installed in the plane formed by the set of truncating straight lines, while the tips of the teeth are inclined in the direction of rotation of the rotor of the brushing equipment, and the described circumference of the rotor of the brushing equipment at the ends of the teeth is equal to a = 690 ... 710 mm, while the rotor of the stripping equipment also has two hollow shafts installed at the ends of the rotor, while the axis of rotation of the hollow shafts coincides with the axis of the rotor, p the brushing equipment torus has two pins mounted on the axis of rotation of the brushing equipment rotor at its extreme points along the axis of rotation, while one of the pins is used to transmit torque to the brushing equipment rotor, and the second to support the brushing equipment rotor, inside the hollow shaft closest to the trunnion transmitting torque at its extreme point along the axis of its rotation, a hollow cylinder insert is rigidly mounted, which has a groove located perpendicular to the axis of rotation otorrhea stripper equipment, wherein the driving pin on the end face has a projection shape corresponding to the size of the groove in the insert.

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