SU1531880A1 - Apparatus for determining critical speed of forest seed impact - Google Patents

Abstract

The device relates to agricultural and forestry devices designed to study shock effects on seed damage, in order to determine the critical rotational speed of the working bodies of machines used in seed treatment. The purpose of the invention is to improve the accuracy and performance of the device. The device comprises a frame 1, a feeder 2, a remote control consisting of a driving 3 and a driven 4 pulleys, an endless belt 5 made of rubberized material and an exhaust drum 6, a tensioning device 7, supporting posts 8, a plate 12, a reflector 15 seeds and receiver 17. The work is as follows. Turning on the drive, place the sample of the studied seeds in the feeder 2 and then slowly turn the feeder around the axis. Seeds flow in a continuous stream to the moving belt 5 and are thrown out by the drum 6. Striking the plate 12, they bounce off and, falling into the deflector-deflector 15, are poured into the receiver 17. At the same time, there is no scatter of the seeds and the test portion completely falls into the receiver 17 from where it is then extracted for qualitative analysis. If the difference in the number of damaged seeds is less than 1%, then, by increasing the peripheral speed, the following experiment is carried out. The speed increase is brought to such a level that the number of damaged seeds exceeds 1% (the amount of seed damage for forest seed cleaning machines is acceptable). This speed is the critical speed of rotation of the working bodies of the seed cleaning machines during seed processing. 2 Il.

Description

one

(21) 4352749 / 30-15

(22) 12/30/87

(46) 12/30/89. Bul Number 48

(71) Voronezh Forestry Institute

(72) L. T. Sviridov

(53) 631.362.22 (088.8)

(56) Proceedings of the Central Asian Scientific Research Institute of Forestry. Issue 3, Tashkent, 1958, p. 281-283.

(54) DEVICE FOR DETERMINING THE CRITICAL SPEED OF FOREST SEEDS IMPACT

(57) The invention relates to agricultural and forestry apparatuses designed to study shock effects on seed damage, in order to determine the critical rotational speed of the working bodies of machines used in seed treatment. The purpose of the invention is to improve the accuracy and performance of the device. The device comprises a frame 1, a feeder 2, a remote control consisting of a lead 3 and a slave 4 H1kivs, an endless belt 5 made of rubberized material and a discharge drum 6, a tension device 7,

the supports 8, the plate 12, the reflector 15 seeds and the receiver 17. The work is as follows. Turning on the drive, place the sample of the studied seeds in the feeder 2 and then slowly turn the feeder around the axis. Seeds flow in a continuous stream to the moving belt 5 and are thrown out by the drum 6. Striking the plate 12, they bounce off and, falling into the deflector-deflector 15, are poured into the receiver 17. At the same time, there is no scatter of the seeds and the test portion completely falls into the receiver 17 from where it is then extracted for qualitative analysis. If the difference in the number of injured: seed seeds is less than 1%, then by increasing the peripheral speed, the following experiment is carried out. The increase in speed is brought to such a value that the number of damaged seeds exceeds 1% (the damage value of seeds for forest seeds is acceptable - cleansing mats). This speed is the critical speed of rotation of the workers, the seed organs of the cleaning machines when processing the seed. 2 Il.

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And; - acquisition refers to agricultural and forestry devices designed by the village | studies of shock effects on seed damage, in order to determine the critical speed of the workers' attack (jpraiiOB machines used in seed treatment, in particular decoupling and cleaning.

The purpose of the invention is to improve the accuracy and performance of the device.

FIG. 1 and; .-; |) is a device for determining the critical speed of an impact of forest seeds, arabia: a view; pas figs. 2 - cooker plate. 1 cmh) by the seed boxer.

 The unit for determining; 1.11 the critical velocity of the impact of the forest-based computers contains frame 1, on which the feeder 2 is installed. A frame is mounted on frame 1. It consists of leading 3 and nedomo | About 4 pulleys, endless. nty 5 of rubberized material and exhaust drum 6. The driving pulley 3 and drum b have square diameters in order to provide the same circumferential speed) axle. Two tensioning devices 7 are provided for tensioning the mite 5 and eliminating its possible hump distortions. 7. A drum 6 ycTaiioB. Ie.n on two supporting CTOI I-kahs 8. The position of the drum can be changed with the help of the flange joint 9 and the U-shaped notch (groove) on one of the str (ek. The surface of the drum 6 is covered with unrug-deformp |) ye. My Materialo 10, for example nopo. ionoM, D.I. of prevention of the seed season | at the moment of their release. Along the edges of the master 3 and the slave 4 pulleys and a discharge drum (there are flanges 11, which do not have a stable operation of the ycTpoii- frame I, the plate 12 is fixed. For pel y; i1ropi11sh, seed traveled from the moment B1 | throw to hit, plate 12 is fixed with the possibility of its mixing in a horizontal section. For the frame I, the horizontal groove 13 is installed horizontally. Moreover, if necessary, the title can be raised and lowered but ciienna ibHoif rack 14, as well as changed its angle of inclination. Plate 12 is supplied with a straight-than-reflector than 15 seeds. avi gs. 1b- (: i | 1a / i: athe. 1b 15 has a box-like shape, and its 6 () Koiii ie walls 1b is fixed. 1ppa is hinged p out) of the material, except for Seed damage (tarpaulin, rubberized material, durable fabric, etc.). For assembly), a sample is provided for the receiver 17. The drive of the driving pulley, 3 and the drum H isp

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March from DC; I to 18 DC through V-belts 19.

The device for determining the critical speed of impact of forest seeds works as follows.

In the beginning, with the help of a laboratory autotransformer and a clock gauge tachometer, the minimum circumferential speed of the ram1, the drive pulley 3, and the drum 6, is set.

0 hinge plate (50 ... 100 g) of the investigated seeds into the feeder 2 and then slowly turn the feeder around the axis. Seeds are fed continuously to the moving tape 5 and are thrown out by the drum 6. Striking the plate 12, they bounce off and, falling into the deflector-deflector 15, are poured into the receptacle 17. At the same time, there is no scatter of the seeds and the test portion is half-full to receiver 17, from where it is then extracted for qualitative analysis.

0 After a qualitative assessment on microdamage of seeds, a comparison is made with a control sample with an uranium that has not been subjected to ud-). 1: s, 1, and the difference in the number of damaged seeds is less than 1%, then increasing the circumferential CKOpijCTb rotation of the lead 3 and the drum 6 is carried out with the -1st experiment in the same sequence.

The rate of increase is brought to such a level as: 1 the rate at which the number of damaged seeds exceeds 1% (permissible

0, the amount of seed damage for forest seed ops). This is the critical speed of rotation of the workers of the opi-anov semes treatment plants during the processing of seeds.

Form: and ItJOnpCTi HUfl

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Art. D.I.I. (“Limits of the critical speed of the UD”) and the Semen, containing |) A.M., whose scooper feeder, see bullets, is made in the form of an endless belt covering and leading the skins with it a drum, an inclined plate and a receiver, are distinguished by the fact that (for the purpose of improving the point and performance, the leading one is the hammer and the drum and it has 1 equal diameter, with

5 4TOM surface of the drum has a coating 113 of an elastically deformable material, and the plate is fixed on the frame with a possibility of being heated in a horizontal plane and direct it to that) on the other side of the seeds to | x.x J h t about and f about rmg

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Claims (1)

A device for determining the critical speed of impact of forest seeds, containing a frame on which (a feeder is mounted, a seed tube made in the form of a leading and driven pulleys of an endless belt and a drum in contact with it, an inclined plate and a receiver, characterized in that, with In order to increase accuracy and productivity, the leader: the nkiv and the drum have an equal diameter, while ₄₅ the surface of the drum has a coating of elastically deformable material, and the plate is fixed to the frame with the ability to move horizontally ntal plane and is equipped with a guide-reflector of box-shaped seeds.