Mountain harvester

 

The invention relates to mining equipment. The objective of the invention is to increase reliability by providing lubrication of gears and bearings in case of any deviation the housing from the horizontal during operation of the harvester. Mountain harvester contains the frame and attached at both ends can be rotated around the horizontal axis of the boom carrying the working bodies. In the box-shaped buildings that act housings, shafts are gear cutting to transmit torque from motor to working bodies. It is equipped with pressure sensors, pressure and normally closed valves in communication with the cavities of the arrows, with the sensors oil level, hydraulic pumps, refrigerators for oil, choke, the electrically-controlled valves and mounted on the shafts additional tanks with sensors leaks. Each additional tank drain line, one of which has a normally closed valve controlling the cavity associated with the electrically-controlled valve, and communicated with the cavity of the arrows through highways through the hydraulic pump, refrigerator oil, and electric controlled gererated the optimum cavity and Vice versa when turning arrows and indicated by line through a throttle with a hollow boom. Pressure sensor and pressure valve installed in the line between the hydraulic pump and refrigerator. 2 Il.

The invention relates to mining equipment for mineral extraction.

Famous mountain harvester containing the frame and attached with both his highlanders can be rotated around the horizontal axis of the boom, load-bearing working bodies, with box-shaped buildings that act crankcases shafts are gear cutting to transmit torque from motor to working bodies (see, for example, ABT. St. USSR №1196499, CL E 21 C 27/00, publ. 07.12.1985).

A disadvantage of the known harvesters is too deep immersion in oil speed gears gear cutting and bearings due to the deviation of the gear case from the horizontal from negative (in the range of coal) to 70+78° (in the cutting of coal). Such a wide range of deviation from the horizontal gear cutting leads to sharp fluctuations of oil level in different parts of the crankcase, which is a cause of increasing power losses of the motor on the inclination and means to heat the oil, and as a consequence of overheating PI, ultimately, premature failure of the gear cutting.

Task - the creation of the harvester, which in gear cutting would be the optimum amount of oil to lubricate the gears and bearings in case of any deviation the housing from the horizontal during operation of the harvester.

This object is achieved in that in the mountain harvester containing the frame and attached on both ends can be rotated around the horizontal axis of the boom carrying the working bodies, with box-shaped buildings that act housings, shafts are gear cutting to transmit torque from motor to working bodies, it is equipped with pressure sensors, pressure and normally closed valves in communication with the cavities of the arrows, with the sensors oil level, hydraulic pumps, refrigerators for oil, choke, the electrically-controlled valves and mounted on the shafts additional tanks with sensors leaks, each of which has a drain line, one of which has a normally closed valve that controls the cavity associated with the electrically-controlled valve, and communicated with the cavity arrows Patsany with oil level sensor, with the possibility of pumping oil from the cavity of the arrows in the additional cavity and Vice versa when turning arrows and communicated highway through the throttle with the cavity of the arrows, when this pressure sensor and pressure valve installed in the line between the pump and refrigerator.

Distinguishing features of the claimed combine in a well-known found in research on the patent and scientific literature the similar devices not found, therefore the proposed device complies with the conditions of eligibility of the invention and provides the optimal amount of oil in the crankcase gear cutting for the lubrication of gears and bearings when any deviation of the boom (buildings gears) from the horizontal during operation of the harvester.

The essence of the proposed is illustrated by drawings, where Fig.1 shows a General view of the left part of the mountain harvester (the right side has the same design), Fig.2 presents the principal hydraulic scheme fill of gear cutting oil.

Mountain harvester contains the frame 1 and attached on both ends (represented only the left side of the harvester) can be rotated around a horizontal axis 2 boom 3 bearing working bodies 4, box-shaped buildings that act housings, shafts 3 are the gear cutting torque transmission from e is Tralach 3. The container 6 is communicated with the cavities (Carter) arrows 3. Working bodies 4 are equipped with loading panels 7 to the flow direction of the mined coal. Cavity (Carter) boom 3 is connected to the additional capacity 6 highway 8, which features a filter 9 through the pump 10, the refrigerator 11 oil line 12, the electrically-controlled valve 13 and line 14. Additional tank 6 is equipped with a breather 15. In line 8 between the pump 10 and refrigerator installed pressure sensor 16 and the discharge valve 17, line 18 is connected to the cavity (Carter) boom 3. Additional capacity 6 has a sensor 19 and the cavity (Carter) arrows 3 - the sensors 20, 21 and 22 of the oil level. Highway 12 through the control valve 13 and line 23, in which is mounted a throttle 24 is connected to the cavity of the arrows 3 (Carter).

Additional capacity 6 have a drain highways 25 and 26, in line 26 is installed normally closed valve 27, the control cavity which the line 28 is connected to the valve 13.

Mountain harvester works as follows.

First include the rotational drive of the working body 4, the drive rotation of the boom 3 (along arrow B), the actuator Shearer (along arrow a) and the pump on as the raising of the boom 3, the oil level in the lower half of the housing will increase, in the result of which will trigger the sensor 22 including a valve 13, which will connect highway 12 and 14. Oil from the pump 10 through the condenser 11 will be pumped in an additional capacity of 6 up until the oil level in the lower part of the crankcase will not fall and will not trigger the sensor 21, by removing the valve 13, and the oil on highways 12, 23 and inductor 24 will merge into the crankcase. Thus in the crankcase is maintained at the optimum oil level when lifting 3.

In case of an increase in oil pressure at the entrance to the refrigerator 11 opens the discharge valve 17, which allows the oil to drain into the sump through line 18.

When lowering the boom 3, the oil will begin to flow through the crankcase in the direction of the working body 4, exposing the sensor 20, which outputs a signal to the switching valve 13, which will connect highway 12 and 28, which opens a normally closed valve 27 and the oil through line 26 will flow by gravity from the additional capacity 6 in the sump to a level that will trigger the sensor 21 is disconnected and the valve 13 and thereby close the valve 27.

Excess oil from the additional capacity 6 merge into the sump through line 25, and in case of lack of oil due to an internal leak sensor is n, containing the frame and attached on both ends can be rotated around the horizontal axis of the boom, load-bearing working bodies, with box-shaped buildings that act housings, shafts are gear cutting to transmit torque from motor to working bodies, characterized in that it is equipped with pressure sensors, pressure and normally closed valves in communication with the cavities of the arrows, with the sensors oil level, hydraulic pumps, refrigerators for oil, choke, the electrically-controlled valves and mounted on the shafts additional tanks with sensors leaks, each of which has a drain line, one of which has a normally closed valve controlling the cavity associated with the electrically-controlled valve, and communicated with the cavity of the arrows through highways through the hydraulic pump, refrigerator oil, and electrically-controlled valve associated with the sensors oil level with the possibility of pumping oil from the cavity of the arrows in the additional cavity and Vice versa when turning arrows and communicated highway through the throttle with the cavity of the arrows, with the pressure sensor and the pressure

 

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