SU975057A1

SU975057A1 - Jaw crusher

Info

Publication number: SU975057A1
Application number: SU813300082A
Authority: SU
Inventors: Виктор Кириллович Тимошенко; Леонид Андреевич Хмара; Александр Стефанович Шипилов; Юрий Ксенофонтович Ионов
Original assignee: Днепропетровский инженерно-строительный институт
Priority date: 1981-03-31
Filing date: 1981-03-31
Publication date: 1982-11-23

Description

Изобретение относится к дроблению пород и материалов, а именно к щековым дробилкам, и может быть использовано в горнодобывающей, металлургической, химической отраслях промышленности, в производстве строительных и специальных материалов. Известна щековая дробилка, содержащая станину, привод подвижной щеки с шатуном, неподвижную щеку со сквозными каналами и пневмосистему с источником сжатого воздуха, соединительным трубопроводом и коллектором каналов [11.The invention relates to crushing of rocks and materials, namely to jaw crushers, and can be used in the mining, metallurgical, chemical industries, in the production of construction and special materials. Known jaw crusher containing a bed, a movable cheek drive with a connecting rod, a fixed cheek with through channels and a pneumatic system with a compressed air source, a connecting pipe and a channel collector [11.

Однако в этой дробилке кинематические возможности привода и сжатый воздух используются не оптимальным образом, в результате чего низки ее производительность и КПД.However, in this crusher, the kinematic capabilities of the drive and compressed air are not used optimally, as a result of which its productivity and efficiency are low.

Цель изобретения - повышение производительности и КПД дробилки.The purpose of the invention is to increase the productivity and efficiency of the crusher.

Поставленная цель достигается тем, что привод дробилки выполнен в виде диафрагменного пневмоцилиндра с двуплечим рычагом, связанным одним плечом с шатуном, другим - со штоком цилиндра, а в пневмосистему включен пневмораспределитель, вход которого соединен с источником воздуха, один вход - с цилиндром, а другой - с коллектором.This goal is achieved by the fact that the crusher drive is made in the form of a diaphragm pneumatic cylinder with a two-arm lever connected by one shoulder to the connecting rod, the other to the cylinder rod, and the pneumatic distributor is included in the pneumatic system, the input of which is connected to the air source, one input to the cylinder, and the other - with a collector.

На чертеже показана конструктив- ная схема предложенной дробилки.The drawing shows a structural diagram of the proposed crusher.

Дробилка содержит подвижную 1 и неподвижную 2 щеки, распорные плиты 3, шатун 4, двуплечий рычаг 5 на оси 6, шток 7 диафрагменного пневмоци1 q линдра 8, соединительный трубопровод 9, клапан 10 быстрого сброса воздуха и пневмораспределитель 11 с золотником 12, который приводится во вращение пневмомотором 13. В качестве источника сжатого воздуха может быть ³ использован подключенный к ресиверу 14 компрессор 15. Сждтый воздух от компрессора через масловлагоотделитель 16 поступает через вентиль 17 2Q на вход распределителя 11, а через дроссель 18 - к мотору 13. В щеке 2 (и в ее дробящей плите) выполнены сквозные каналы 19, сообщающие камеру дробления с полостью коллектора 20, соединенного участком 21 трубопро вода с одним из выходов распределителя 11, второй выход которого соединен с. силовой пневмополостьЮ цилиндра 8. Возврат штока 7 осуществляется пружиной 22, а щеки 1 - пружиной 23 с 30 тягой 24.The crusher contains a movable 1 and a fixed 2 cheeks, spacer plates 3, a connecting rod 4, a two-arm lever 5 on the axis 6, a rod 7 of a diaphragm pneumatic cylinder 1 q of cylinder 8, a connecting pipe 9, a valve 10 for quick air release and a valve 11 with a spool 12, which is driven rotation by a pneumatic motor 13. As a source of compressed air ³ , a compressor 15. connected to the receiver 14 can be used. 15. Air from the compressor through the oil and water separator 16 enters through the valve 17 2Q to the inlet of the distributor 11, and through the inductor 18 to the motor 13. In Through channel 2 (and in its crushing plate), through channels 19 are made, communicating the crushing chamber with the cavity of the collector 20, connected by a pipe section 21 to one of the outlets of the distributor 11, the second outlet of which is connected to. power pneumatic cavity of cylinder 8. The return of the rod 7 is carried out by the spring 22, and the cheeks 1 - by the spring 23 with 30 thrust 24.

В процессе работы дробилки сжатым воздухом приводится через дроссель 18 с требуемой скоростью вращения мотором 13 золотник (пластина) 12 распределителя 11, обеспечивая доступ Воздуху то в цилиндр 8, то в 5 коллектор 20. В первом случае опускается шток 7, поднимается шатун 4 и щека 1 раздавливает материал в камере дробления, а во втором случае (положение пластины 12 показано пунк-10 тиром) воздух поступает по участку 21 через коллектор 20 и каналы 19 в камеру дробления. При этом из цилиндра 8 отработанный воздух удаляется через клапан 10 сброса вовне или прямо через участок 21 и коллектор в каналы 19. В результате сброса воздуха, воздействия пружин 22 и 23 шток 7 [поднимается, а щека 1 отходит от щеки 2, раздробленная масса в каме- jq ре дробления опускается под действием сил тяжести и струй воздуха из каналов 19. Затем цикл повторяется и т.д. Продолжительность рабочего и холостого ходов щеки 1 определяется расположением отверстий входа и выходов распределителя 11 и частотой вращения мотора 13, т.е. золотника 12.In the process, the crusher is driven by compressed air through the throttle 18 with the required rotation speed by the motor 13, the spool (plate) 12 of the distributor 11, providing air access to the cylinder 8 and 5 to the manifold 20. In the first case, the rod 7 is lowered, the connecting rod 4 and the cheek are lifted 1 crushes the material in the crushing chamber, and in the second case (the position of the plate 12 is shown in paragraph-10 by a dash), air enters through section 21 through the collector 20 and channels 19 into the crushing chamber. In this case, the exhaust air is removed from the cylinder 8 through the discharge valve 10 to the outside or directly through the section 21 and the collector into the channels 19. As a result of the air discharge, the springs 22 and 23 are exposed to the rod 7 [rises, and the cheek 1 moves away from the cheek 2, the fragmented mass in the crushing chamber jq is lowered by gravity and air jets from the channels 19. Then the cycle repeats, etc. The duration of the working and idle strokes of the cheek 1 is determined by the location of the inlet and outlet openings of the distributor 11 and the speed of the motor 13, i.e. spool 12.

Цикличная подача воздуха в каме- 30 ру дробления способствует очистке .The cyclic air supply in the crushing chamber 30 facilitates cleaning.

дробящих плит, уменьшению сил трения и расхода воздуха.crushing plates, reducing friction and air flow.

Использование описанного пневмопривода и пневмосистемы в целом обеспечивает ускоренный отход щеки 1 с паузой, для лучшего опорожнения камеры дробления, что повышает производительность и КПД дробилки.The use of the described pneumatic drive and the pneumatic system as a whole provides an accelerated departure of the cheek 1 with a pause, for better emptying of the crushing chamber, which increases the productivity and efficiency of the crusher.

Claims

The invention relates to the crushing of rocks and materials, namely, jaw crushers, and can be used in the mining, metallurgical, chemical industries of the industry, in the production of building and special materials. The jaw crusher, the bed frame, the movable jaw drive with the connecting rod, the fixed cheek with through channels and the pneumatic system with a source of compressed air, connecting pipe and manifold channel 11 are well known. resulting in low performance and K11D. The purpose of the invention is to increase the productivity and efficiency of the crusher. The goal is achieved by the fact that the crusher drive is made in the form of a diaphragm pneumatic cylinder with a two-shoulder lever connected to one arm with a connecting rod, the other with a rod of qi. lindra, and in the pneumatic system a pneumatic distributor is connected, the inlet of which is connected to an air source, one inlet - with a cylinder, and the other - with a collector. The drawing shows the structural scheme of the proposed crusher. The crusher contains movable 1 and fixed 2 cheeks, spacer plates 3, connecting rod 4, double-arm lever 5 on axis 6, rod 7 of diaphragm pneumatic cylinder 8, connecting pipe 9, valve 10 for rapid air discharge and pneumatic distributor 11 with spool 12 which is driven by a pneumatic motor 13. The compressor 15 connected to the receiver 14 can be used as a source of compressed air. Compressed air from the compressor through the oil separator 16 enters through the valve 17 to the inlet of the distributor 11, and through the choke 18 to the motor 13. In the cheek 2 (and in its crushing plate) are made through channels 19, which communicate a crushing chamber with a cavity of a collector 20 connected by a pipe section 21 to one of the outlets of the distributor 11, the second outlet of which is connected to. cylinder 8 power pneumatic cavity. The stem 7 is returned by the spring 22, and the cheeks 1 by the spring 23 with the gravity 24. During the crusher’s operation, compressed air is driven through the throttle 18 at the required speed of rotation by the motor 13 of the spool 12 of the distributor 11, providing access Air is either in cylinder 8 or in collector 20. In the first case, rod 7 is lowered, connecting rod 4 rises and cheek 1 crushes the material as crushing, and in the second case (position of plate 12 is shown inlet) air flows through the section through collector 20 and channels 19 in ka Yeru crushing. In this case, the exhaust air is removed from the cylinder 8 through the relief valve 10 to the outside or directly through section 21 and the manifold to the channels 19. As a result of the discharge of air, the action of the springs 22 and 23, the rod 7 rises and the cheek 1 moves away from the cheek 2, fragmented the mass in the crushing chamber is lowered under the influence of gravity and air jets from channels 19. Then the cycle is repeated, etc. The duration of the working and idle moves of the cheek 1 is determined by the location of the inlet and outlet openings of the distributor 11 and the rotational speed of the motor 13, i.e. spool 12. Cyclic air supply in the crushing chamber facilitates cleaning of crushing plates, reduction of frictional forces and air consumption. The use of the described pneumatic drive and pneumatic system as a whole provides accelerated waste of the cheek 1 with a pause, for better emptying of the crushing chamber, which improves the productivity and efficiency of the crusher. The invention of the Dekov crusher containing a frame, a moving cheek drive with a connecting rod, a fixed cheek with through channels and a pneumatic system with a source of compressed air, connecting pipe and channel collector, in order to increase its productivity and efficiency, the actuator is made in the form of a diaphragm pneumatic cylinder with a double-arm lever connected to one arm with a connecting rod, the other with a cylinder rod, and a pneumatic valve with an air source connected to the pneumatic system, one exit with a cylinder, and the other - with a collector. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2729140 / 29-33, cl. B 02 C 1/02, 1979.