SU29300A1 - Cotton harvesting machine - Google Patents

Description

Cotton harvesting machines are known that have a circular saw for cutting plants. In the proposed cotton harvester, to remove the boxes from the cut bushes filed to the machine, a comb with a comb wall and paired corrugated rollers located under it are used for pulling the stalks through the comb of cotton bushes behind the stalks. The machine is equipped with a conveyor consisting of two rubber belts rotating on rollers arranged in a staggered pattern, the axes of which are set at a gradually varying angle so that the surface of the belts in its turn receives a turn of 45 °. A flat spring is attached to the KOH-I chain of the conveyor to press the sheared stem to the saw blade.

In FIG. 1 shows the top view of the car; FIG. 2-cross-section of paired grooved rollers; FIG. 3 shows the arrangement of the rollers and bush relative to the comb; FIG. 4 - bush reception; FIG. 4 - circular saw blade (in two projects).

In the proposed cotton cutting machine, a disc saw 1 (Fig. 4) is designed, rotating at a speed of 450-500 revolutions per minute or at a linear speed of up to 15-20 meters per second. Disk saw / (Fig. 1) mounted on a shaft mounted in bearings placed at the end of the frame 2 of the friction conveyor. To ensure that the cotton bush is pressed against the saw at the time of its cutting to the frame of the conveyor 4, an elastic flat spring 3 is fixed on the fixed axis on the fixed axis (Fig. 4, 4). In the initial oner radio of cutting the bush, the branches of the latter, which are in front, are clamped by a conveyor, which maintains the correct position of the bush relative to the saw and the guide spring. At the last moment of the cut, the bush is fully picked up by the clutch 5-6 and is carried to the car.

The friction conveyor consists of two endless, parallel-extending rubber bands, tight on a system of rollers 7 mounted on a common frame.

The rollers 7 rotate freely on the axles fixed in the frame. The conveyor frame is attached to the main axis of the machine on the kerchiefs using two braces mounted from angular iron. ,

The endless conveyor belts are rotated directly.

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(towards each other) chain transmission 13 with tensioning roller 14.

To ensure correct passage of the cut bush through all the guide rollers and to more reliably clamp the /; such belts, the outer rollers of the conveyor are equipped with springs T9 (Fig. 4) allowing the rollers' axes to converge and diverge at the time the bush passes through them. In subsequent rollers, the bush is clamped by the staggered arrangement of the rollers.

Conveyors are set at an angle of 55 ° to the horizon; Thus, the cut cotton shrub has a bare end of 7 to 9 cm, protruding under the lower edge of the conveyor. The cut bush is transported to the machine with ribbons turned relative to the lower rollers from 0 to 45 ° to the upper end. Thus, a bush grasped by a conveyor at the moment of cutting in a vertical position is brought into the machine's bucket at an angle of 45 °, at which the turn of the conveyor is carried out by turning around a central axis.

The cotton bush is cut into the bucket of the machine 20, where under the comb wall 21 of the bucket (Fig. 3) grooved rollers 22 are installed, which are used to pull cotton bushes through the combs 21 sticking out of the bush. This provides for the obligatory gripping of the cut bush and the dragging of the latter by rotating rollers through the tooth of the comb. The lower teeth of the comb are set at an angle of 45 ° as well. the upper ones - at an angle of 50 °, forming a slit, not necessary. A) for passing a bush stalk.

Installing the comb pins at different angles provides free rolling of the combed heap without loss into the cheeks 25. The rollers 22 are mounted. in frame 24j fixed to the main axis of the machine.,

To prevent the cotton heap from getting into the conveyor mechanisms, the latter is covered with sheet tin in the form of a smoothly streamlined case mounted with a bracket on the upper panels of the conveyor frame so that the rigid covers at the same time serve as guides of the bush and contribute to its better coverage during forward movement. movement of the car.

Movement to all mechanisms is transmitted by the drive shaft from the tractor. The saw gets rotated through two pairs of bevel gears 28, 29. The screw rotates at a speed of one hundred revolutions per minute from the tractor's propeller shaft through two pairs of cylindrical gears and propeller shaft. Screw: Transmission 33 transmits movement to the transmission shaft.

The proposed two-bottom cotton-picking machine is attached to the tractor's earring with the help of group 34, securing the natural hinges on the main axis of the machine. The machine is lifted, both for work and for transport, through a lifting device mounted on the groove to which the machine is suspended.

During the forward movement of the machine, the working sections, directed along the sequence, meet with the bushes, cut them off by a rapid rotation of the circular saw /.

One by one, the cotton bushes cut off by a circular saw are immediately picked up by a friction tape and strongly compressed by the latter are carried away into the machine 20, to the place where the bolls are towed. The end of the cut of the bush protrudes approximately 7--8 cm from the bottom of the friction tape. The friction ribbons carry the cotton bush to the bucket 20 of the machine and here the protruding end of the cut of the bush, being guided and pushed through the crevice of the comb wall 27 of the bucket 20, is picked up by two grooved rotating rollers 22, located prd comb slot bucket. A bush clamped by rollers 22, by rotation of rollers, is pulled through comb 27, leaving the entire cotton pile inside the 2ft bucket. The large slope of the comb wall 21 facilitates the heap to quickly roll into the screw trough, which is located with the bucket 20 and is one whole. The rolling pile of auger 23 is driven into a hanging bag, and bare bushes are dropped into the field.

The subject matter of the invention.

Claims (3)

1. Cotton harvesting machine, cutting cotton bushes, characterized in that bucket 20 with a comb-shaped wall 27, fitted with a longitudinal slot in the middle and paired grooved rollers 22 under it, are used to remove the boxes from the bushes fed to the machine; for pulling 3k cotton bushes through combs 2 /. i 2..In the machine according to claim 1, the use of a troisporter consisting of two rubber bands rotating on rollers arranged in a checkerboard pattern, the axes of which are set at a gradually varying angle so that the surface of the bands receives a turn on 45 °. 3. With a machine according to claim 1, use a flat spring 3 fixed at the end of the conveyor, designed to press the sheared stem to the saw blade. FIG.2 B22 0Hf / , / U FIG. 3 FIG.4