SU108331A1 - Automatic machine for opening the shutters of the grain dryer - Google Patents

Description

Mechanical driven automata are known that are used to periodically release a dryer dried and cooled from a mine. Adjusting the duration and time for opening the gates is carried out in them with the help of a set of profile washers. These machines are complex in design and bulky.

The described automaton differs from those known in that, in order to strengthen the design and provide remote control, a solenoid is used to drive the shutter, the core of which is connected kinematically with the movable shutter frame, and the pulse sensor is made in the form of an electromechanical breakthrough, the current pulses to the solenoid .

To change the period of operation of the automaton in the chopper, a connecting rod-crank mechanism with a crank is used, the length of which can be changed when adjusting the automaton.

FIG. 1 shows the circuit diagram of the automaton: FIG. 2 pulse sensor, side view; FIG. 3 is the same in the plan.

The circuit of the automaton includes a pulse sensor 1, an intermediate relay 2, network contacts 3. a solenoid 4, a core of a solenoid 5, a shutter lever 6, a shutter 7, a shut ton S and a spring, 9.

Pulse sensor} at set intervals closes its contacts and turns on the coil of the intermediate relay 2; 1 electric network. Intermediate relay 2 operates and closes the solenoid network by means of contacts 3. When the network is closed, the solenoid 4 pulls in the core 5 connected to the hinge with lever 6 and pulls the lever 6 to itself. The lever 6 is pivotally connected to the movable gate 7, set, 1 on traction 8 and moves the shutter frame by the required distance. After the contacts of the sensor 7 are opened, the contacts 3 are opened, the solenoid is de-energized, and under the action of the spring 9 of the shutter, the entire system returns to its original position.

The pulse sensor works in the following way.

Pulley 10 is driven by an electric motor. On one shaft

with a pulley. sits-iepiisiK II, which rotates 1 place from 1; 10 leads li moving the blueberry gear 12. A gear with groove 13 is attached to gear 12. The rail 15 transmits the movement of the wheel 16 stored on the wheel 16, which is kept from reverse by the dog 17. The ratchet wheel has a drummer for 18 s. pruzhiHOI. {When rotating xpauoiiH on the clock line 1, the striker reaches the bracket with the spike 19, the nose of the unit and the shaft and the shaft is inserted into the hammer with the impact / 6, which moves inwards.

As soon as the impact hammer of the shock 18 passes. P1IC of the bracket 2 ,, .op under the action of the spring. drummer clicks on the plunger of the plunger 21 and move the plunger. Sector 22, ciuizanny with the plunger through the toothed sector 23 presses the TOr; i, a kontakty 24 and they are closed, vk.yuchyv coil of the io relay circuit.

At the same time, the toothed sector 23 will engage with the gear 25, sitting on one of the worm gears 12, and will begin to rotate. Zishlka 26 falls into the plush of the plunger and will prevent the plunger from moving backwards. Along with it, sector 22 rotates, fixed on the toothed sector 23. After a certain period, sector 22 will come out of contact with the plunger of the electrical contacts 24, and the network will open. If you rotate the spindle, the vortex sector with your finger 27 presses the latch 26, which will release the plunger 2 /, and it will come to its initial position under the action of the spring 28.

During this movement, the toothed sector 23 will strike the cutoff 29 and return to its original form. A spring 30 with a spring is mounted to press the rails 15 against the ratchet.

Subject invention

1. Automat for opening the grain dryer of the grain dryer of the dryer, containing a sensor; Pulses, causing the shutter to be triggered, with an adjustable period of operation UI, U1 and .4, so that design and provide remote control for the drive gate; a solenoid is applied, the core of which is kinematically connected with the moving frame of the shutter, and the pulse sensor is designed as an electrical mechanical chopper; its current pulses to the solenoid.

2. Automatic on and. 1, that is, in order to change the period of action of the automaton in the chopper, a crank-crank mechanism with a crank is used, the length of which can be changed during the adjustment of the automaton.

L

cm

u I

9