SU1628867A1 - Section of rotating operating members - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery. The purpose of the invention is to reduce the time spent on repair and restoration work. Section rotary working bodies contains mounted on a horizontal axis 1 discs with hubs 3 and teeth 6, between which spacer sleeves 2 are located. The disks have trapezoidal grooves 4, in which trapezoidal protrusions 5 of teeth 6 are placed. Springs 8 have a star-shaped plate and are located on 3 wheel hubs. The star-shaped part of the springs interacts with the teeth 6, and the pulped part interacts with the spacers 2. When replacing a worn or broken tooth 6, it is deflected along axis 1, and the protrusion 5 is removed From the groove 4, overcoming the resistance of the beam 7 of the spring 8, and removed tooth 6 in radial direction. 1 ep f-ly, 3 ill.

Description

UNION OF SOVIET

SOCIALIST

REPUBLIC

1628867 A1 (51) S A01 B21 / 04 ____________________

STATE COMMITTEE.

BY INVENTIONS AND DISCOVERIES UNDER SCSTAN OF THE USSR

DESCRIPTION OF THE INVENTION

TO AUTHOR'S CERTIFICATE

W »JAYA yattne gatta LIBRARY (21) 4665420/15 (22) 03.22.89 (46) 02.23.91. Bull.№7 (71) All-Union Scientific Research Institute of Grain Economics named after A.I. Barayev (72) V.Ya. Shatin (53) 631.313.74 (088: 8) (56) US Patent No. 3734801, cl. A 01 B 21/02, 1970.

UK patent No. 1236130, CL A 01 B 21/04, 1971.

(54) SECTION OF ROTARY WORKING BODIES (57) The invention relates to agricultural machinery. The purpose of the invention is the reduction of time spent on work. The section of rotary working bodies contains disks mounted on the horizontal axis 1 with hubs 3 and teeth 6 between which spacer sleeves 2 are located. The disks have trapezoidal grooves 4 in which trapezoidal protrusions 5 of teeth 6 are placed. The springs 8 have a star-shaped dish-shaped shape and are located on the hubs 3 discs. The star-shaped part of the springs interacts with teeth 6, and the dish-shaped part interacts with spacer sleeves 2. When replacing a worn or broken tooth 6, it is deflected along axis 1 and the protrusion 5 s of groove 4 is pulled out, overcoming the resistance of beam 7 of spring 8, and tooth 6 is pulled out radial direction. 1 e.p. f-ly, 3 ill.

Figure 1

1628867 A1

The invention relates to agricultural engineering, namely to the working bodies for surface tillage.

The purpose of the invention is ’reduction 'of time spent on repair and restoration work.

Figure 1 shows a section of a rotating working bodies, rear view; figure 2 view a in figure 1; in Fig.Z - node I in Fig.1.

The section of rotary working bodies contains disks with hubs 3 and trapezoidal grooves 4 mounted on the horizontal axis 1 through spacer sleeves 2, in which trapezoidal protrusions of 5 teeth 6 are located, pressed to the disk by beams 7 of star-shaped disk springs 8. For attachment to the frame of the implement (not shown) the section has two support bearing assemblies 9 mounted on the axis 1 between the hubs and containing spacer sleeves 10 similar to the sleeves 2, On the threaded ends of the axis 1 there are thrust washers 11 and nuts 12 for tightening all the elements sections. The disk contains an outer ring 13, an inner ring 14 with a shoulder 15 and stiffening ribs 16 connecting them, together forming grooves 4. An annular groove 17 is made on the end part of the hub 3, into which the spring 8 enters. For the passage of the latter into the groove 17, the end cylindrical surface the hub 3 has two flats 18, and the spring 8 has a central hole of the corresponding shape. The spring 8 is fixed on the hub 3 by turning it in the groove 17 by an angle close to 90 °. In this case, due to the oval of the hole 19, the spring 8 rests on the side surface of the groove 17, and its beams 7 abut against the tail of the teeth 6, pressing them to the ring 13 and the shoulder 15. On the surface of the teeth 6, facing the spring 8, additional protrusions 20 are formed, included in the grooves 21 made at the ends of the beams 7 of the spring 8.

The proposed section works as follows.

When tightening the nuts 12, the spacer sleeves 2 and 10 and one of the thrust washers 11 press the tail parts of the teeth 6 through the springs 8 to the outer rings 13 and the flanges 15 of the disks. The protrusions 5 of the teeth 6 enter the grooves 4 and abut their radial ends against the cylindrical surface of the hub 3.

When replacing worn or damaged teeth 6, loosen the nuts 12, while the spacer sleeves 2 and 10 and the thrust washers 11 move away from the disks. The teeth 6 remain pressed against the disks by rays of 7 springs

8. The replaced tooth 22 is deflected along axis 1, overcoming the resistance of the bending beam 7. until the protrusion 5 comes out of the groove 4 and the tooth 6 is pulled out in the radial direction. While the remaining teeth 6 remain fixed on the disk by other beams 7 of the spring 8.

A new tooth 6 is inserted into the disk and clamped in it in the reverse order.

Claims (2)

Claim 1. Section of rotary working bodies, containing disks mounted on the horizontal axis with hubs, teeth and springs and spacers located between them, characterized in that, in order to reduce the time spent on repair and restoration work, each of the disks has trapezoidal grooves, the number of which is equal to the number of teeth, and the spring has a star-plate shape and is located on the hub of the disk for the interaction of its plate part with a spacer sleeve, with a trapezoid made on each of the teeth ny protrusion disposed in one of the disk slots, and star-shaped part of the spring is arranged to interact each with its rays odnim'iz teeth. 2. The section according to claim 1, characterized in that on the surface of each of the teeth from the side of the spring there is an additional protrusion located in the groove made in the beam of the spring. view A I fig. 5