SU945423A1

SU945423A1 - Entry-driving machine

Info

Publication number: SU945423A1
Application number: SU802982339A
Authority: SU
Inventors: Анатолий Григорьевич Канатаев; Виталий Григорьевич Авдеев; Николай Иванович Яроцкий; Анатолий Прокофьевич Колено; Иван Иосифович Мельников; Виктор Порфирьевич Сердюк; Алексей Константинович Карцев; Юрий Александрович Соколовский
Original assignee: Ясиноватский Филиал По Проходческому Оборудованию Института "Гипромашобогащение"; Ясиноватский машиностроительный завод
Priority date: 1980-09-15
Filing date: 1980-09-15
Publication date: 1982-07-23

Description

Изобретение относитс к оборудо- ванию дл горной промышленности.The invention relates to equipment for the mining industry.

Известен проходческий комбайн, включающий ходовую часть, аутригеры дл повышени устойчивости комбайна, гидропривод, содержащий насос, гидроаккумул тор , гидроцилиНдры аутригера, распределители и клапаны .A driving combine is known, which includes a running gear, outriggers for increasing the stability of the combine, a hydraulic drive containing a pump, a hydraulic accumulator, outrigger hydrots, distributors and valves.

Недостатком такого комбайна вл етс недостаточна устойчивость вслеД-гствие того, что отсутствует возможность индивидуальной реакции каждого аутригера на изменение и величину силовых воздействий на комбайн в процессе работы.The disadvantage of such a combine is the lack of stability due to the fact that there is no possibility of an individual response of each outrigger to a change and the magnitude of the force effects on the combine during operation.

Наиболее близким по технической сущности и достигаемому результату вл етс проходческий комбайн, содержащий аутригеры и гидравлическую систему , включающую гидрозамки, блок , 20 запорных кранов и распределители 2.The closest in technical essence and the achieved result is a sinking harvester containing outriggers and a hydraulic system including hydraulic locks, a block, 20 shut-off valves and distributors 2.

Недостатком такого комбайна вл етс его недостаточна устойчивость из-за невозможности индивидуальнойThe disadvantage of such a combine is its insufficient stability due to the impossibility of individual

настройки каждого уатригера с учетом характера работы и горно-геологических условий.settings of each uatriger in view of nature of work and mining and geological conditions.

Цель изобретени - повышение устойчивости комбайна.The purpose of the invention is to increase the stability of the combine.

Claims

The goal is achieved by the fact that in a tunneling machine, including a running gear, outriggers, with hydraulic control, containing hydraulic locks connected to the piston cavities of outrigger hydraulic cylinders, and a hydraulic distributor connected to hydraulic locks, each outrigger is equipped with an accumulator connected to a piston piston. outrigger hydraulic cylinder through a normally closed valve, and the rod cavity is connected to the piston through a safety valve and check valve, and the safety valve is set to d The valve is smaller than the worker; in this case, a two-way hydraulic lock is used, connected on one side to the rod end of the hydraulic cylinder, and on the other hand to the piston one through the throttle and non-return valve. FIG. 1 shows a roadheader, side view; FIG. 2 - the same, top view; in fig. 3 is a view A of Fig. 1 and a hydraulic circuit in principle. The tunneling machine includes the executive body 1, loader 2, loader 3, body, propulsion 5, outriggers 6, hydraulic drive 7. The hydraulic drive 7 of the combine contains the following components related to each (one) outriger 6: hydraulic cylinder 8 outriger 6, having piston cavity 9 and rod cavity 10, hydraulic lock 11, valve 12, check valves 13, 1 15, throttle 16 safety valve 17, chosen so that it can be adjusted to a pressure lower than the operating pressure in the system, normally closed hydraulically my, preloaded spring 18 on the one hand and on-off raspredelital 19 torr pressure reservoir 20, SEQ Nij is mounted so that it can be connected to the piston cavity 9 through the valve 19 and to feed it. The rod cavity 10 is connected to the piston cavity 9 through the safety valve 17 and the return 15 so that when the safety valve 17 is triggered, the working fluid can flow from the rod cavity 10 to the piston 9, but not in the opposite direction - the check valve 15 prevents the latter. Rosamok 11 guides the piston 9 and rod 10 cavities of the hydraulic cylinder 8 and the line of hydraulic equipment connected with it, but does not block the line 21, which is assigned for recharging the hydraulic compressor 20 and connected through a check valve 13 to the pressure valve 22, mine 12, and distributor control line 23 connected to the pressure and drain 25 lines through valve 12. The machine works as follows. When extending the hydraulic cylinder rods In outrigers 6, the outriggers 6 are located, lying on the ground, and the body of the combine k, the working fluid from the distributor 12 through the hydraulic lock 11, the open valve 1A and the throttle 16 enters the piston cavity 9 of the hydraulic cylinder 8 outri 6, simultaneously under the action of the spring 18 the distributor 19 moves up and discharge The hydroaccumulator 20, increasing the speed of the stem extension of the hydraulic cylinder B. At the end of the spacing, the distributor 12 takes a neutral position, podpruchit the empty cavity of the distributor 19 is connected to the drain and the distributor 19 under pressure in the piston cavity 9 moves downward. the piston cavity 9 of the hydraulic cylinder 8, the distributor 19 under the action of the spring l8 switches, connecting the hydraulic accumulator torus 20 to the piston cavity 9 of the hydraulic cylinder 8. In this case, the hydrotsilin is fed pa 8 and maintained constant contact shoe outrigger 6, with the soil. When the hydraulic cylinder 8 is fed, the working fluid from the rod end 10 through the safety valve 17, which is set to a pressure less than the operating pressure in the system, but not sufficient to lift the outrigger shoe 6 (hyalostoy course), and through the check valve 15 flows into the piston cavity 9 of the hydraulic cylinder 8. When when the outrigger arm is raised 6, choke 16 creates resistance to the flowing working fluid and, due to the resulting pressure differential, distributor 19 switches, compressing the spring 18 and disconnecting the hydraulic accumulator 20. Thus, during operation Those of the combine, the rod of the hydraulic cylinder 8 of the outrigger 6 is sufficiently rigidly fixed by the pressure of the working fluid on both sides of the piston, providing a constant and reliable spread into the soil, which predetermines the stable position of the driving combine during the driving, vibrations and jolts. The invention includes a driving unit, including a running gear, hydraulic control outriggers containing hydraulic locks associated with the piston cavities of the outrigger hydraulic cylinders, and a hydraulic distributor connected to hydraulic locks, characterized in that, in order to increase the stability of the combine, each outrigger has a hydraulic accumulator connected to the piston cavity of the outrigger hydraulic cylinder through a normally closed valve, and the rod cavity is connected to the piston through a safety and non-return valves, The safety valve is set to a pressure lower than the operating one, using a two-way hydraulic lock connected on one side to the rod end of the hydraulic cylinder, and on the other to the piston one through a throttle and non-return valve. 9 “36 Sources of information accepted. Attention in the examination 1. V. Germanov. and others. Jib boring combines. M., Nedra, 1978, p. 7c, 79.

2.Germanov V.E. and others. Jib boring combines. M., Nedra, 1978, p. 89.91.

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