Device for automatic regulation load coal combine

 

(57) Abstract:

The invention relates to coal shearers and can be used in the coal industry. The proposed device is aimed at improving the performance of the harvester, the improvement of the particle size distribution of coal and the reduction in the unit cost of energy. Device for automatic regulation load coal Shearer has the motor, the feed mechanism, the drive gear of the Executive body. In contrast to known devices for regulating the load of the combine, the offer is further provided with a hydraulic system consisting of a pump, an adjustable hydraulic motor and an automatic controller, and the drive gear of the Executive body contains a planetary gear mechanism including a carrier, a radical and a sun gear, and drove attached to the motor, radical gear is output, and the sun gear is connected to the pump. Hydraulic motor, made with reverse positive connection, is connected to the shaft of the motor, and an automatic controller connected to the hydraulic pump feeding mechanism. 1 Il.

The invention relates to coal shearers and can be ePolicy mining machinery, contains electrical and hydraulic parts (the invention of the USSR and. C. 259006, MKI E 21 C 27/00, B. I. 2, 1970).

But this device allows you to support the work of the harvester only "minimal" mode cutting i.e. by changing the feeding speed at a constant rotational speed of the Executive body, which leads to increased energy consumption coal production and lower grade coal.

A device for stabilizing the load mining machines (adopted as a prototype), containing the Executive motor, feeding mechanism, a hydraulic actuator, the control mechanism is driven, a current transformer, the speed sensors and the position of the machines in the lava, differentiating filters, the comparison element and relay amplifier (the invention of the USSR and.with. 354130, MKI E 21 C 27/00, B. I. 30, 1972).

This device also allows you to support the work of the harvester only "minimal" mode cutting, which leads to increased energy consumption coal production and lower grade coal.

The invention is aimed at regime change cutting coal combine with the "minimum" on "parametric" mode in which the cutting speed is proportional to the feed speed. This will lead to a decrease in e is achieved by the device includes a motor, a feed mechanism, the drive gear of the Executive body, is further provided with a hydraulic system consisting of a pump, an adjustable hydraulic motor and an automatic controller, the drive gear of the Executive body contains a planetary gear mechanism including a carrier, a radical and a sun gear, and drove attached to the motor, radical gear is output, and the sun gear is connected to the pump, hydraulic motor, made with reverse positive connection, is connected to the shaft of the motor, and an automatic controller connected to the hydraulic pump feeding mechanism.

The drawing shows a diagram of the device illustrating the invention. The motor 1 is connected with the planet carrier 2 planetary gear 3, radical gear 4 through a gear reducer drive Executive body 5 is connected with the output shaft 6, the sun gear 7 is connected to the hydraulic pump 8, which is connected by a pipe with an adjustable hydraulic motor 9, an adjustable hydraulic motor 9, made with reverse positive correlation connected with the motor 1.

Automatic regulator 10, is connected in the pressure line of the hydraulic system 11, clucene check valve 14 and a relief valve 15.

The device operates as follows. From the electric motor 1, the rotation is transmitted cage 2 planetary mechanism 3 further, through a radical gear 4 and gear reducer drive Executive body 5 is transmitted to the output shaft 6. At rated load on the output shaft 6 transmission ratio ihbbetween the planet carrier 2 and the indigenous gear 4 minimum, therefore, the rotational speed of the output shaft 6 maximum. By increasing the load increases the torque on all the elements of the planetary mechanism. The sun gear 7, overcoming the resistance of the hydraulic pump 8 starts to rotate faster, thus increasing the gear ratio ihband falling speed of the output shaft 6. With increasing frequency of the rotation shaft of the hydraulic pump 8, the pressure in the pressure line of the hydraulic circuit 13 increases, adjustable hydraulic motor 9, made with reverse positive correlation, at a constant rotational speed, increases the time that is returned to the motor shaft 1, while the automatic regulator 10 by increasing the pressure in the hydraulic system 13 reduces the working volume of the hydraulic pump feeding mechanism, thereby reducing the feed speed of the harvester.

Automatic is rivada Executive body, characterized in that it is further provided with a hydraulic system consisting of a pump, an adjustable hydraulic motor and an automatic controller, the drive gear of the Executive body contains a planetary gear mechanism including a carrier, a radical and a sun gear, and drove attached to the motor, radical gear is output, and the sun gear is connected to the pump, hydraulic motor, made with reverse positive connection, is connected to the shaft of the motor, and an automatic controller connected to the hydraulic pump feeding mechanism.

 

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