Abstract

The invention relates to the design of the cutter-loader head for thin seams, which cutter-loader head is used in particular to mine coal seams of small thickness. The cutter-loader head (1) is guided on the face side by means of two sliding shoes (8', 8"), which are fastened in end regions of the two face-side two bars (7, 7"), wherein the one bar (7') is rigidly connected to the head frame (2) and the second bar (7"), in contrast, is connected in an articulated manner, and the raising and lowering is performed by means of a face-side power cylinder (11), which is placed in a retainer (12) located at the end of the head frame (2). The guiding retainer (13"), which is fastened in an articulated manner on the mining side of the head frame (2) and is congruent to the face-side beam (7"), is equipped with the handle (15) for fastening the mining-side power cylinder (16), a second end of which is accommodated in the bow (17) of the head frame (2). The head frame (2) has at least one guide (18), which is located on the mining side and which interacts with the guide rail of the face conveyor attachment on the principle of gravitational force.

IPC Classes  ?

• E21C 27/02 - Machines which completely free the mineral from the seam solely by slitting

Abstract

Mounting mechanism of a cutting-loading machine in thin seams applied especially for cutting coal. The cutting-loading machine (1) is slidably mounted on a face conveyor by means of two skid shoes (2) from the wall side and two skid shoes (3) from the goaf side, and the body thereof (1') is connected with a drive chain (4) by means of two guide brackets (5). In order to mount cutting drums of a larger diameter onto non-swivelling drive shafts (6), the skid shoes (2) from the wall side have releasable mounted distance inserts (7', 7"), the skid shoes (3) from the goaf side have releasable mounted distance inserts (11), and guide brackets (5) have bodies (14) of a height (K) adjusted to the required elevation (P) in relation to the lowest position.

IPC Classes  ?

• E21C 35/12 - Guiding the machine along a conveyor for the cut material

Abstract

The invention relates to a construction of a skid shoe of a cutting machine for thin seams which allows for adjustment of the range of height of cutting without the need to change cutting drums. The skid shoe (1) has an lug (Γ) which goes into a clamp (2) constituting an end of a beam (3) of the cutting machine body. The skid shoe (1) is connected with the beam (3) by means of a connector (4) which has in its central part a crank (9) going through the lug (Γ) of the skid shoe (1). Said connector (4) in its front part (5) from the wall side has an external groove (6) through which goes a lock (7) determining the position of the connector (4). In one preferable embodiment the skid shoe (1) has a divided lug (Γ), whereas in another embodiment the connector (4, 4') is divided and united by means of a connecting screw (15), going through a hole (14) in an axis (Oi) of the crank (9).

IPC Classes  ?

• E21C 35/12 - Guiding the machine along a conveyor for the cut material
• E21C 35/06 - Equipment for positioning the whole machine in relation to its sub-structure

Abstract

The present invention relates to a feeder cable laying mechanism and a face conveyor gate of a mining machine for thin seams used especially for cutting thin coal seams. The cable laying mechanism /6/ of the mining machine /1/ for low faces has a lower branch /6b/ of the cable laying mechanism /6/ arranged in the upper section /8a/ of gates /5/ of the face conveyor /2/ guided on guide inserts /27,28/ of a drive strand /10/ of a tensioning trolley /9/ of said cable laying mechanism /6/, wherein the return pulley /12/ of the drive strand /10/ is slidably mounted by means of a tensioner /17/ arranged in the upper section /8a/ of the gates /5/ of the face conveyor /2/. The pulling strand /11/ and the return strand /13/ of the drive strand /10/ are arranged horizontally in the guide inserts /27,28/. Tensioning of the drive strand /10/ is performed by means of the tensioning trolley /9/ and the tensioner /17/. The gate according to the invention preferably has an insert /26/ located in the upper section /8a/ of the gates /5/ which is equipped with the properly made and mounted guide inserts /27,28/.

IPC Classes  ?

• E21C 29/14 - Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
• B66D 1/50 - Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchorsWarping or mooring winch-cable tension control
• E21C 35/04 - Safety devices