SU1556575A2 - Device for cleaning and hauling device - Google Patents

Abstract

The invention relates to the agricultural machinery industry, in particular for the short-term drive of the rotating working bodies of harvesting and other agricultural machines, and is an improvement of the invention in a.s. N1202516. The purpose of the invention is to increase the productivity of the harvester by speeding up the cleaning process of the working body. Electromagnets 9 and 10 are introduced into the device to drive the spool valve 7 of the hydraulic distributor 6 and the locking pawl 11, respectively. Electromagnets are switched on alternately by signals from the outputs of the trigger 14 according to the switch signals when the rod reaches 3 hydraulic cylinders 4 extreme positions. 1 il.

Description

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The invention relates to agricultural machinery, in particular, for the short-term drive of rotating working bodies of harvesting and other agricultural machines, and is in addition to the main author. St. 1202516.

The purpose of the invention is to increase the productivity of the harvester by speeding up the cleaning process of the working body.

The drawing shows devices for scrolling a working member with an electronic control system, a general view.

The device for scrolling the working body of the harvesting machine when it is driven contains the shaft of the working body of the machine, on which the ratchet wheel 1 is rigidly fixed and the hub of the pivot arm is freely seated, to which the spring loaded drive dog 2 is pivotally attached, provided with a shaft pivotally connected to the stem 3 of the hydraulic cylinder 4 connected by the other end to the body 5 of the machine. The operation of the hydraulic cylinder is carried out by switching the direction of hydraulic flows by means of an electric hydraulic distributor 6, the golden valve 7 of which rests at one end on the spring 8 and the other end is rigidly connected to the electromagnet 9. The electromagnet 10 is rigidly connected to the tail of the locking pawl 11. On the lever 1D of the mechanism for activating the main drive, a push-button switch 13 of the electric interlock mechanism is connected to the electrical circuit of the supply electromagnets 9 and 10 by means of igger 14. The operation of the device is monitored by signal lamps 15 and 16. Power is supplied through switch 17.

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The manual switch 13 will go to the wedged state and the electric circuit will be under voltage. In this case, one of the transistors of the trigger, for example, V,, will be open, and the other V2 - closed, since a positive potential is applied to its base through the resistor R. Under the action of the collector TOka transistor V (the electromagnet 9 is activated and moves the spring-loaded slide valve 7 of the hydraulic distributor 6 to the left position. At the same time, the piston rod 3 of the hydraulic cylinder 4 will move to the left under the pressure of the oil and using the drive pawl 2 transmits force to the ratchet wheel 1, turning the shaft of the working body of the harvesting machine to the left, that is, opposite to the main direction.

by the action of torque, the vegetable mass will begin to be removed from the working member. When the piston of the hydraulic cylinder 4 reaches the leftmost position, it will close the contact to the body with the help of a bracket fixed on the rod 3, and a negative signal is applied to the base of the transistor V2, resulting in a zero potential at the base of the transistor V, and the transistor V. opens. The voltage from the electromagnet 9 is removed and fed to the electromagnet 10, which moves the spring-loaded locking dog 11 up and prevents the shaft from turning backwards. At this time, under the action of the spring 8, the golden valve 7 moves to the right, switching the directions of the hydraulic flows. Resulting in

The hydraulic cylinder 4 will move to the right, and when it reaches the extreme position, the bracket on the rod 3 will close contact K on the case, which will lead to the opening of the transistor V, and

A movable1 closing element 18 is fixed on the rod 3 of the hydraulic cylinder, closing the limit switches K1 and K2 in the extreme left and right positions.

The device works as follows.

When the switch 17 is turned on and the main drive of the youth separating device is turned off, the viascake of the transistor Vi is turned off. The process repeats with each new connection of contacts K. and K ,. When the main drive lever 12 is turned on, the pushbutton switch 13 opens the process, electromagnets 9 and 10 will be de-energized, the locking dog 11 will release the ratchet wheel 1, the spring-loaded spool 7 will take the right position, direct the oil flow to the pinhole space of the hydraulic cylinder 4, which will cause movement

the rod 3 and the withdrawal of the pawl 2 from the ratchet wheel 1, and when the piston reaches the rightmost position, the flow of oil through the safety valve will return to the hydraulic system. Such a design provides reliable prevention from breakdowns of the device’s mechanisms, since when the main actuator actuator lever 12 is turned on or the electric circuit is broken, the piston immediately moves to the right and is held by that low oil pressure.

The effectiveness of the proposed device is to increase the frequency of shaft rotation, which will reduce the downtime of cleaning machines when cleaning their working bodies by 3-5 times, as well as simplify control of its operation, since there is no need for reciprocating periodic hand movements for switch control valve. In addition, the use of an electrical interlock will increase the technical reliability of the device.

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Claims (1)

Invention Formula A device for scrolling the working body of the harvester when it is driven by the ed. St. No. 1202516, a different forelock, in order to increase the productivity of the harvester by speeding up the cleaning process of the working gun, the device is additionally equipped with a trigger, two limit switches and two electromagnets, while the hydraulic cylinder rod is equipped with a locking element installed with the ability to interact with end devices switches in the extreme positions of the piston stroke of the hydraulic cylinder, and the cores 7 of the first and second electromagnets are rigidly connected respectively to the slide valve spool the limiter and the shank of the locking dog, the outputs of the first and second limit switches are connected to the first and second inputs of the triggers, the first output of which is connected to the winding of the second electromagnet, the second trigger output is connected to the winding of the first electromagnet, and the common contact of the limit switches is connected to the machine body .