SU866237A1

SU866237A1 - Hydroelectric actuator of mine cars

Info

Publication number: SU866237A1
Application number: SU782715170A
Authority: SU
Inventors: Михаил Федорович Утенков; Евгений Михайлович Чернявский; Анатолий Евгеньевич Симаков; Нина Михайловна Левчишина; Валентин Семенович Круть; Эрнест Богданович Шмидт; Николай Андреевич Рудометкин; Геннадий Васильевич Тарасов
Original assignee: Всесоюзный научно-исследовательский и проектно-конструкторский угольный институт "КузНИУИ"; Каменский Машиностроительный Завод Производственного Объединения "Струг"
Priority date: 1978-12-05
Filing date: 1978-12-05
Publication date: 1981-09-23

Description

II

Изобретение относитс к горнотранспортному оборудованию, а именно .к устройствам дл перемещени шахтных грузовых вагонеток преимущественно на погрузочных, разгрузочных и обменных пунктах угольных шахт и рудников .The invention relates to mining and transport equipment, namely, devices for moving cargo mine trolleys primarily at loading, unloading and exchange points of coal mines and mines.

Известны электрогидравлические толкатели вагонеток, включающие силовые цилиндры, ползуны с кулаками, гидроаппаратуру дл обеспечени возвратнопоступательного движени ползунов и рейку дл обеспечени необходимой циклограммы движени ПЗНедостаток этого устройства заключаетс в том, что рейка работает в услови х интенсивной заштыбовки и обводненности , что приводит к ее износу и дополнительным затратам энергии.Electro-hydraulic pushers of trolleys are known, which include power cylinders, sliders with cams, hydraulic equipment for providing reciprocating movement of sliders, and a rail for providing the necessary cyclogram of motion of the CCD. additional energy costs.

Наиболее близкий к предлагаемому изобретению электрогидравлический толкатель вагонеток, включает гидроцилиндры двухстороннего действи со штоком, ползуны с кулаками, командный кран.The electro-hydraulic pusher of trolleys closest to the proposed invention includes double-acting hydraulic cylinders with a stem, crawlers with fists, a command crane.

распределительный золотник и систему клапанов, в котором механическа св зь мевду ползунами заманена гидравлической св зью 2.distribution valve and valve system, in which the mechanical connection of the mevda sliders is enticed by the hydraulic connection 2.

Недостатком известного устройства вл етс возможность нарушени циклограм1Ф1 , что снижает надежность устройства .A disadvantage of the known device is the possibility of violation of cyclogram1F1, which reduces the reliability of the device.

Цель изобретени - повышение наде кности .The purpose of the invention is to increase reliability.

10ten

Поставленна цель достигаетс тем, что электрогидравлический толкатель вагонеток, включающий гидравлические цилиндры двухстороннего действи с односторонним штоком и св занными The goal is achieved by the fact that an electro-hydraulic pusher of trolleys, including hydraulic cylinders of double-acting with a single-sided rod and associated

15 гидромагистрал ми штоковыми полост ми , ползуны с кулаками, командный кран, распределительный золотник, предохранительный и обратный клапаны, снабжен дополнительным гидравлическим 15 hydraulic lines, rod cavities, crawlers with cams, command valve, distribution valve, safety and non-return valves, equipped with additional hydraulic

Claims

A double-acting cylinder 20, one of the cavities of which is connected to the piston cavity of one of the hydraulic cylinders, and another, via a non-return valve, is connected to the piston cavity of the other hydraulic cylinder and through the distribution spool to the rod-shaped cavities of both hydraulic cylinders and a safety valve. In addition, the additional hydraulic cylinder has adjustable stops for changing the stroke along the tires. The drawing shows a basic hydraulic diagram of the pusher. The electro-hydraulic pusher contains two power cylinders 1 and 2 of double-acting action with one-sided rods connected to sliders 3 and 4 with working-fists, control valve 5, command valve 6, safety valve 7, auxiliary hydraulic cylinder 8 double-acting, reverse valve 9 and pumping unit (not shown). Rod cavities of hydraulic cylinders 1 and 2 are interconnected with safety valve 7, and the piston cavities of these hydraulic cylinders via distributor sol The tick 5 is alternately connected to the pressure or drain lines and to the auxiliary hydraulic cylinder 8, the piston cavity of the hydraulic cylinder 1 directly connected to the cavity O, and the piston to the cavity of the hydraulic cylinder 2 is connected to the cavity (5 hydraulic cylinders 8 through the check valve 9. At the same time, the cavity cG hydrodistributing gold nick 5 is connected to gatokovy cavities of hydraulic cylinders} and 2 and safety valve 7, the distributing spool 5 is hydraulically controlled 1m and is connected to the command valve b, D and the working volume of the hydraulic cylinder cavities O and rf due to the change in the magnitude of the piston stroke on the end walls of the hydraulic cylinder 8 are adjustable stops. Hydraulic pusher car works as follows. When the position of the distribution valve 5, shown in the drawing, the piston cavity of the hydraulic cylinder 1 is connected to the pressure line, and when the working fluid from the pumping unit is fed, the lorshen moves the slide forward, nodding his car with his fist. At this time, the working fluid displaced by the piston from the rod cavity enters the rod cavity of the hydraulic cylinder 2, moves the piston, and with it the slider 4 back. Simultaneously, the working fluid from the pressure line enters the cavity of the hydraulic cylinder 8, moves its piston to the right side, displacing a portion of the liquid from the cavity and through the hydraulic distributor 5 into the rod cavities of the hydraulic cylinders I and 2, After the slider 3 reaches the extreme front position, through the command valve 6 passes the working fluid from the pressure line to the controlled cavity of the hydraulic distributor 5, the position of its spool changes and the pressure fluid enters the piston cavity of the hydraulic cylinder 2, Porsche Together with the slider 4, the fluid moves forward, fluid from the rod end of the hydraulic cylinder 2 enters the rod cavity of the hydraulic cylinder 1, and its piston returns to its original position. At the same time, the working fluid from the pressure line through the check valve 9 enters the cavity S of the hydraulic cylinder 8, fills it, and the fluid from the cavity o is forced into the drain line. Then the cycle repeats. Thus, in each work cycle of the pusher, a certain amount of working fluid, independent of the loads, is fed into the stem cavities of the hydraulic cylinders 1 and 2. In this case, possible surplus is discharged through the safety valve 7. Depending on the amount of compensation for leakage of working fat, adjustable stops placed in the end walls of the hydraulic cylinder 8 change the piston stroke and, therefore, the cavity volume f. The use of an auxiliary hydraulic cylinder in the pusher ensures strict implementation the required cyclogram of the movement of the sliders in any range of working loads while maintaining a constant value of the speed of movement of the trolleys, which increases the of papers, pushrod and reduces power consumption. Claims 1. Electro-hydraulic pusher of trolleys, including hydraulic

double-acting cylinders with one-way stem and associated hydraulic lines rod cavities, sliders with fists, a command crane, distribution valve, safety valve and backflow valve, characterized in that, in order to ensure reliability, the plunger is provided with an additional double-acting hydraulic cylinder which is connected to the piston cavity of one of the hydraulic cylinders, and the other cavity is connected via a non-return valve to the piston cavity of the other hydraulic the cylinder and the distribution valve - with the rod cavities of both hydraulic cylinders and the safety valve.

2. The pusher of claim 1, in which the additional hydraulic cylinder has adjustable stops for changing the stroke of the piston.

Sources of information taken into account in the examination

1. USSR author's certificate number 220912, cl. E 2} F 13/02, 1967.

2. Mining machines and automatics, 1965, No. 7, p. 171-174 (prototype).