SU968671A1 - Stand for testing haulm removing apparatus of beet harvesters - Google Patents

Description

(54) STAND FOR W: ATTEMPTS OF HEAVY-CUTTING DEVICES OF BEET COMBINES

one

The invention relates to an agricultural machine-building industry, which can be used to study the dynamic loads of the parts of the logging machine and the bench simulation tests of the harrowing machines on machine-testing stations.

A stand for accelerated testing of beetroot combine harvesters is known, which contains a drive drive base, a load element in the form of a circular soil channel with an abrasive mixture and a mechanism for moving the test apparatus along the channel connected to the apparatus through a trolley with a ribbed roller providing vertical blade vibrations and in front of the cart To the mechanism of movement, the rake and ripper of the abrasive medium 1 are successively united.

The disadvantage of the well-known stand is the lack of copying movement and the impossibility of adjusting the gains that occur during imitation, which lengthens the bench test time.

I The purpose of the invention is to reduce bench test time by simultaneously simulating the copying of the heads of the roots and the cutting efforts of the tops.

The goal is achieved by the fact that in the device the loading element is designed as a drive disk with a rubber ring installed on the axis to interact with the knife of the wiper device to a cam placed on its surface, while on the axis of the axis the bar for interacting is fixed on the horizontal and vertical planes with the cam and the copying mechanism of the bobbing machine, and the axis of the disk is connected to the one based on the ball joint.

In addition, the base has a guide, on which a loading element is mounted with the possibility of movement by means of a screw mechanism.

Claims (2)

FIG. 1 shows a test stand for glass-combine harvesters, front view, in section; on fng. 2 is a view A of FIG. one; in fig. 3 is a view B in FIG. 1. 396 A test bench for testing beet-growing machines includes a base 1 connected by a dovetail-type guide with a stand 2, in the bearing unit 3 of which a pulley 4 is installed with a driver 5 and a ball support 6 on which a disc 7 mounted, including fixed on it is a rubber ring 8, a cam 9 and a floating bar 10 with a hub 11 on a bearing assembly 12. A stand 13 with a screw 14 and a dynamometer 15 is attached to the base 1. The device is installed under the combs 16 of the machine’s copying mechanism and contacts the Come 7. The device is driven by a DC motor (not shown). The test bench for the beet dough beater apparatus operates as follows. When the drive is turned on, the device is positioned so that the combs 16 of the copying mechanism are placed on the floating bar 10 between its upwardly curved ribs, and the blade-cutting knife 17 is in contact with the periphery of the rubber ring 8. When the drive of the imitation device is turned on, the rotation is transmitted to the pulley 4 and fixed in it the leash 5 to the disk 7. The cam 9, rotating with the disk 7, passes under the floating bar 10 and lifts its free end together with the combs 16 lying on it, which with the help of the copying mechanism carry over Combat knife 17, rotating from the drive of the harrowing machine, imitating, thus, copying the heads of the roots. In order for the iozh 17 not, however, to exit from the interaction with the rubber ring 8, the disk 7 is mounted on a ball bearing 6 placed in shkivy 4 and has the ability to swing after the knife 17. The floating bar 10 is kept from rotating on the sub-head 12 with dies 16 which are located between the edges of the plank bent upwards. Before switching on the drives, the rubber ring 8 rises to the cutting edge of the knife 17 by moving the entire device along the base rails I with the help of a screw 14, thus simulating the bending moment that occurs when cutting the tops. The force is clamped by a dynamometer 15. Due to the difference in the rotational speeds wj and Wj, the cutting edge of the knife 17 slides along the rubber ring 8, thus simulating torque resistance. The use of the stand allows to reduce the time of bench tests and makes it possible to use in the laboratory conditions the dynamics of the work of the parts of the cutting apparatus. Claim 1. A test bench for testing beetroot-machines that contains a base, a drive pulley and a loading element, characterized in that, in order to shorten the bench test time by simultaneously simulating copying of the root heads and cutting force of the tops, the loading element is designed as installed on the axis a drive disk with a rubber ring for interaction with the knife of the wiping device and a cam placed on its surface, while on the disk axis it is installed rotatable horizontally tal and vertical planes of the strap for cooperating with the cam and feeler mechanism botvorezh} atsego apparatus, and a disk associated with the base using a ball bearing axis. 2. The stand according to Claim 1, in connection with the fact that the base has a guide, on which the loading element is mounted with the possibility of movement by means of a screw mechanism. Sources of information taken into account in the examination 1. USSR author's certificate N «238839, cl. G 01 M 19/00, 1967 (prototype). View A Bifd6 (jl izzS