SU648164A2 - Device for stabilizing machine working member - Google Patents

Description

...one

The invention relates to agricultural machinery industry and is intended for contour cutting of cores (guvies).

Basically auth. St. No. describes a device for stabilizing the working organ of a contour pruning machine.

This device is made with an intermediate link, which is kinematically connected through a hinge with the boom of the working body and is equipped with a sensor for the longitudinal and transverse positions of the working body, and the electromagnetic spools are connected to the actuating rods,.

. The disadvantage of the device is its low productivity caused by manual adjustment of the stabilizing device.

The aim of the invention is to increase productivity by mechanizing the installation of longitudinal and transverse position sensors,

This is achieved by teM that the proposed device is equipped with additional hydraulic cylinders, one ends of the cylinder; {pivotally connected to the sensors, while others are attached to the body of the machine and to the intermediate link, and hydrodilidryrs are connected to the spools of the executive hydraulic cylinders.

FIG. 1 shows the device, a general view; FIG. 2 - view along arrow A and .fig. one; FIG. 3 - hydraulic scheme for stabilizing its device.

The device consists of two brackets 1, rigidly mounted on both sides of the machine body, to which the boom of the Cutting Body 2 Raise is hinged. The latter is connected to the string 3, the joint of which is located along the axis of the machine. The intermediate link 3 is held in a horizontal position by a hydraulic cylinder 4 and is connected to a working organ 5.

The working body 5 is set at the height of the hydraulic cylinders b, and by. the slope, depending on the trim profile, is hydrO-cylinder 7.

The tool is a set of circular saws 8, the number of which is determined by the working width of the tool and the diameter of the saw itself.

The stabilizing device constructively consists of two sensors 9 and 10 (for example, a gyroscopic type) and a control hydraulic circuit consisting of an oil tank 11, a pump 12, a check valve 13 and two reversible electromagnetic spools 14 and 15. The sensor 9 is attached at one end to a piston hydraulic cylinders 6, and the second end - telescopically and pivotally. to the piston of the additional hydraulic cylinder 16 mounted on the machine body. The sensor 10 is hinged at one end to the piston of the hydraulic cylinder 7, and the second end - hinged and telescopically to the piston of the additional hydraulic cylinder 17 mounted on the {n} th, the daily link 3 of the stabilizing device.

The cylinders 6 and 4 are connected, respectively, with electromagnetic spools 14 and 15 through valves 18, the hydraulic cylinder 16 is connected in parallel to the hydraulic cylinder 6, and the hydraulic cylinder 17 is connected in parallel to the hydraulic cylinder 4 through valves 19.

The device works as follows. . Previously, with the power supply turned off, the stabilizing device and the shut off valves 18 expose the working body 5 to the required trimming height by means of hydraulic cylinders 6. When the power supply is turned off, the plungers of the electromagnetic spools 14 and J5 occupy the middle neutral position, and the pump 12 at this time is connected through a return valve 13 to the drain line.

Then they turn on the power supply of the stabilizing device and immediately to the sensors 9 and 10 due to the violation of their horizontal-neutral position give a signal to the spools 14 and 15 (valves 19 must be open, and valves 18 are still closed). Plunger valves, moved by their electromagnets, open passages for supplying oil to the cavities of hydraulic cylinders 16 and 17, raising and lowering sensors 9 and 10 to a horizontal neutral position. The signal of the sensors 9 and 10 will be equal to

648164

to zero, - plungers of electromagnetic spools 14 and 15 occupy the same middle position and pump 12 through a check valve

13 is connected to the drain line.

Then close the valves 19 and open the valves 18.

Any change in the position of the worker, the organ in the longitudinal-transverse plane when the machine moves on the unevenness of the soil, will entail a violation of the position

corresponding sensors 9 or 10 of their established horizontal position, which instantly give a signal to the spools

14 or 15. The plungers of the spools, moved by their electromagnets, open the aisles for supplying oil already in the cavity of hydraulic cylinders 4 or 6, raising or lowering the working ORIGIN BEFORE the sensors, due to the fact that they are kinematically connected with the pistons of hydraulic cylinders 4 and 6, will not occupy a neutral position, and therefore, the working body will not return to its former (specified) position. In this case, the signal from the sensors will be zero.

The use of the invention will allow

to mechanize the manual (inconvenient) installation of the sensors of the longitudinal and transverse positions of the working body in the horizontal neutral position and speed up the process of setting the stabilizing device of the machine for cutting tree contour.

Claims (1)

Invention Formula Device for stabilizing the working body of the maschion for contour pruning of trees according to ed. St. No. 546323, characterized in that, in order to increase productivity by mechanizing the installation of longitudinal and transverse position sensors, it is equipped with additional hydraulic cylinders, one ends of which are pivotally connected to the sensors, while others are attached to the body of the machine and the intermediate link, and the hydraulic cylinders are connected to the spools of the actuating hydraulic cylinders.