SU1469130A1 - Arrangement for advancing a mechanized coal-plough set - Google Patents

Description

(21) 4237728/22-ПЗ

(22) 16.

446) 03/30/89. Byul, No. 12, (71) Iakhtinsky Scientific Research and Design and Design Coal Institute A.M.Terpigoreva. (72) V.D.Turuk, S.S. Litvinenko and N.V. Spivak (53) 622.232.75 (088.8) (56) USSR Author's Certificate No. 987092, cl. E 21 C 27/32, 1981.

Manual. Complex cleansing SHS97M. Kamensk, Kamensky Machine-Building Plant, 1984, p. 56.

(54) DEVICE FOR MOVING A STRING MECHANIZED COMPLEX (57) The invention relates to equipment for extracting coal by underground methods and see. used in mechanized plow complexes on the basis of aggregated support and detachable-type gov installations. The purpose of improving the reliability of work. The device for shifting the plowed mechanized complex includes hydraulic P01SHLINDRY (PO 2, each of which is pivotally connected to the plow conveyor 3 at one end. The other

(ABOUT

about

with

FIG.

the end of the HZ 2 is fixed on the sec1D1 and 1 lining. The cavity 9 Hz 2 is connected through the cavity 14 of the metering valve (DK) 10 to the low-pressure hydroline (GL) 5, The cavity 8 Hz 2 is connected to the outlet channel of the hydraulic distributor (GR) 7. The inlet channels of the GR 7 are connected to the drain and high-pressure GL 6.4. The cavity 17 of the DC 10 is connected to the low-pressure GL 5. When the plow passes through the pressure of the conveyor 3, the pressure B of the cavity 8 Hz rises. As a result,.

one

The invention relates to equipment for excavating coal by the underground method and can be used in plow mechanized complexes based on aggregated roof supports and detachable plow rigs.

The purpose of the invention is to increase the reliability of the device.

FIG. 1 shows a hydraulic diagram of the device, option I (the metering valve is connected to the piston cavity of the hydraulic cylinder of the mechanized support section); in fig. 2 - the same, version II (the metering valve is connected with the rod cavity of the hydraulic cylinder of the roof support section).

The device for shifting the structurally mechanized complex of soy from section 1 of the mechanized support, hydraulic cylinder 2, which is connected to the conveyor 3 of the plow installation, high-pressure 4 and low-pressure 5 hydraulic lines and drain hydraulic lines 6, the hydraulic distributor 7, interconnected with the rod cavity

8 (fig. 1) or with a piston cavity

9 (Fig. 2) of the hydraulic cylinder 2 and from the high pressure 4 and drain 6 hydraulic lines, and the metering valve 10.

The metering valve 10 consists of the plunger 11, which is filled with the locking element 12, and the seat 13 under the locking element 1 .. The cavity 14 of the metering valve 10 through the check valve 15, the working choke 16 is connected to the low-pressure hydroline 5 and

.-

In this case, the fluid moves the plunger 11 and DK 10 is cocked. Excess fluid is squeezed out into the low-pressure CH 5. After the plow has passed, the fluid enters the cavity 9 Hz 2. Conveyor 3 advances. is running out. The lifting of sections 1 is carried out by attaching the cavity 8 of the HZ 2 through GR 7 to the high-pressure CH 4. 2 sludge.

with

U 15

20 35 I

25

a piston 9 (Fig. 1) or a rod 8 cavity (Fig. 2) of the hydraulic cylinder 2. The cavity 17 of the metering valve 10 through the control throttle 18 and the check valve 19 is also connected to the low-pressure hydraulic line 5.

. The device for moving the plow mechanized complex works as follows. i When passing through the plow in the section zone

Mechanized lining, the plow assembly conveyor 3 is depressed from the bottom and pressure is increased in the piston 9 (Fig. 1) or rod

| 8 cavity (Fig. 2). As a result, liquid JKOcTb from piston 9 or rod 8 cavities of hydraulic cylinder 2 enters cavity 14 of metering valve 10. Due to the presence of non-return valve 15, fluid moves plunger

II in the extreme position, i.e. the charging of the metering valve 10 occurs.

The working fluid from the piston (Fig. 1) 1 & 1I rod cavity (Fig. 2) is squeezed into the low-pressure hydroline 5 through the check valve 19 and the control throttle 18. In case the volume of fluid displaced from the piston or rod cavity of the hydraulic cylinder 2 more than the volume of the cavity 14 of the metering valve 10, then the excess of the displaced fluid through the channel 20 and the working choke 16 is forced into the low-pressure hydroline 5.

After passage of the plow, the liquid from the low-pressure hydroline 5 through the working choke 16, check valve 15 and channels 7.0 and 21 enters through the cavity 1A into the piston (Fig. 1) or rod (Fig. 2) cavity of the hydraulic cylinder 2, moving the conveyor 3 of the plow installation on the bottom. At the same time, the liquid from the low-pressure hydroline 5 through the control choke 18 enters the cavity 17 of the metering valve 10. In connection with the existing pressure differential between the cavities 14 and 17 of the metering valve 10, the plunger 11 moves to the contact of the locking element 12 with the seat 13, from the section the passage of fluid into the rod (fig. 1) or piston (fig. 2) cavity of the hydrosynder 2. As a result, the movement of the plow conveyor 3 ends.

The amount of fluid passing into the piston (Fig. 1) or rod (Fig. 2) cavity of the hydraulic cylinder 2 depends on the ratio of flow sections of the throttles 16 and 18. Their value determines the dose of fluid entering these cavities, i.e. the feed rate of the conveyor 3 plow installation to the bottom. -At the same time, the other cavity-rod (Fig. 1) or piston (Fig. 2) - are connected through the hydraulic valve 7 with the drain hydraulic line 6.

Reinforcement of sections 1 of the mechanized support is carried out by connecting the rod 8 (Fig. 1) or. piston 9 (fig. 2) cavities of the hydraulic cylinder 2 through the hydraulic distributor 7 with high-pressure hydraulic line 4.

At the same time, the displaced fluid from the piston (Fig. 1) or rod (Fig. 2) cavity moves the plunger 11 of the metering valve 10 to the extreme (right) position and is squeezed into the low pressure hydraulic line 5 through the channels 20 and the working choke 16.

Claims (1)

Formula from b. A device for shifting a plowed mechanized complex, including sections of mechanized lining, hydraulic cylinders, each of which is hinged at one end with a plow conveyor and one of the cavities of which is connected to the low-pressure hydroline by a pipeline, and their other cavity is connected to the discharge hydraulic line, the hydraulic distributors to the inlet and output channels and high-pressure hydroline, which is exact in that, in order to increase reliability, it is equipped with metering valves, each of which installed in a pipeline connecting one of the cavities of each hydraulic cylinder with a low-pressure hydraulic line, and the other cavity of each hydraulic cylinder is connected to the output channel of each hydraulic distributor, while the input channels of each hydraulic distributor are connected to the drain and high porous hydraulic lines and the other end of each hydraulic cylinder is fixed on each section of the mechanized support. f / J 2D u x: / X