The invention relates to mining, and more particularly to drives for the working members of cutter-loaders for mining minerals. The invention concerns means for protecting elements of the transmission of the working member of a cutter-loader. A cutting element is mounted in a safety unit additionally included in a drive and consisting of two splined half couplings which are axially interconnected such as to be capable of mutual rotation and of contacting with elements of the kinematic chain of a reduction gear and with the cutting element. Via axial openings, the splined half couplings abut a cutter safety element such as to enable the transmission of torque, and the ends of the half couplings are provided with caps having elements for removal of the safety unit. The technical result consists in separating, in the kinematic chain of a drive for the working member of a cutter-loader, the functions of damping torsional oscillation amplitude and of protecting a transmission against excessive loads.
1. Technical field: mechanical engineering. 2. Direct use: in actuators of machines having any purpose, and more particularly in the actuator of a winning machine for rock extraction. 3. Essence of the invention: each pair of coaxial apertures is cut to permit the mounting, in the remaining portion of a housing, of the bearing supports of a satellite, which supports are secured in the housing by means of a detachable holder capable of accommodating a corresponding satellite and its bearing supports. 4. The achieved technical result consists in reliably securing each pair of bearing supports of a satellite, and in the simplicity and ease of replacement of a satellite.
1. Technical field: mechanical engineering. 2. Direct application: clearing combines. 3. Essence of the invention: a feeding unit (1) is in the form of a self-moving transport module having elements for detachably fastening to a working unit (2). 4. Technical result: Expanding the technological and operational capabilities of a feeding unit, and specifically, using same for transporting equipment in a resource-extraction hole.
1. Technical field: mining machinery. 2. Specific applicability: cutter-loaders for thin seams. 3. Essence of the invention: a tensioning mechanism which connects the cutting units to one another is provided with a drive, and the body unit is additionally provided with at least one lower tensioning device per cutting unit, which tensioning device connects the corresponding cutting unit to an electric motor. 4. The technical result consists in: providing increased rigidity of the cutter-loader and increased stability of flanged connections; and mechanizing part of the manual operations involved in tightening the flanged connections between the cutting units and the electric motor.
1. Technical field: mining machinery. 2. Specific applicability: selective-cut heading machine. 3. Essence of the invention: a working member and an additional working member are configured in the form of modules, wherein a module comprising a reduction gear with a cutting head is designed to be replaceable, and another module and a frame are identical for both working members. 4. Technical result: mobility and ease of replacement and repair of a working member.
1. Technical field: mining machinery. 2. Specific applicability: curved sections of single-chain scraper conveyors. 3. Essence of the invention: guide elements are configured in the form of rings (7) which interact with rotating supporting elements (6) disposed thereinside, said rotating supporting elements (6) being in the form of rotating bodies and being mounted in a housing (1) which is fastened to a frame (2). 4. Technical result: increased reliability, and reduced servicing time of curved sections.
B65G 19/18 - Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors Details
1. Technical field: mining machinery. 2. Direct application: in devices for the mechanical disengagement of engines from reduction drives of a cutting tool actuator. 3. Essence of the invention: it is proposed to provide a shaped recess (21-22) along the longitudinal axis (X) of a cup (3), in the form of a groove (21) connected to a nest (22), and to fasten a rod (2) in the recess in an initial position in such a way that a flat area (10) provided on the rod (2) is situated transversely to the longitudinal axis (X) of the cup (3), wherein the rod (2) is installed in the rear portion (4) of the cup (3) and is positioned in the shaped recess with the ability to rotate in the nest (22) and to move in the groove (21) along the longitudinal axis (X) of the cup (3), and the thickness (L10) of the rod (2) with the flat area (10) is made to be proportional to the width (L21) of the groove (21). 4. Technical result: increasing the operational reliability and decreasing the activation time of a reduction drive disengagement mechanism.
1. Technical field: mining machinery. 2. Specific applicability: braking systems of cutter-loader mining machines. 3. Essence of the invention: a rotating friction disk (7) is disposed between a clamping member (11) and a non-rotating friction disk (6) such as to be capable of longitudinal movement relative to the longitudinal axis (X) of a shaft (5), wherein the clamping member (11) is in the form of a non-rotating friction disk which interacts with an elastic member (12) that is kinematically connected to a drive (16) of the clamping member (11), and the non-rotating disk (6) is stationary relative to the shaft (5) and is fastened between a housing (13) and a base (4). 4. Technical result: a reduction in the overall dimensions and an increase in the operational reliability of the braking system.
F16D 55/226 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially
1. Technical field: mechanical engineering. 2. Direct application: mechanizing roof support and control processes during the underground mining of mineral resources. 3. Essence of the proposed technical solution: additionally introducing a rocker arm (10) which is pivotally connected to a second end of a hydraulic jack (7) of a section displacement mechanism (8) and to a section base (2), with the ability to come into contact with the latter. 4. Technical result: eliminating the effect of the operation of a base (2) raising mechanism (5) on a rod of the hydraulic jack (7) of the section displacement mechanism (8), the rod of the hydraulic jack (7) remaining stationary relative to a cylinder as the base is raised and maintaining a full range of motion. Practical advantages: providing the increment of displacement of the section, which is claimed by the producer as a technical characteristic of said section, and, as a result, obviating the need for any extra displacements of a longwall system.
1. Technical field: mechanical engineering. 2. Direct application: in mining machinery for forming installation roadways during longwall preparation. 3. Essence of the utility model: the housing (7) of a winning machine displacement actuator is connected, along a conveyor, to a base (1) by means of at least one releasable mortise-type connection (9). 4. Technical result: simpler assembly and disassembly of an actuator for longitudinal displacement of a winning machine along a conveyor during servicing of the mineral-winning system.
E21C 25/00 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
E21C 29/02 - Propulsion of machines for slitting or completely freeing the mineral from the seam by means on the machine exerting a thrust against fixed supports
F16B 5/07 - Joining sheets or plates to one another or to strips or bars parallel to them by means of multiple interengaging protrusions on the surfaces, e.g. hooks, coils
1. Technical field: mechanical engineering 2. Direct application: mechanizing roof support and control processes during the underground mining of mineral resources. 3. Essence of the proposed technical solution: positioning the tips (11, 12) of levers (7, 8) in such a way that a line (14) of interaction of a pusher (13) with the tip (11) of one lever (7) is offset along the longitudinal axis (6) of the section from a line (15) of interaction of the pusher (13) with the tip (12) of the oppositely installed lever (8), said lever tips being able to travel over the half of the section which is opposite to a mounting hinge which mounts the corresponding lever to a base, wherein the amount of travel of each tip is determined by the relationship 0
E21D 23/04 - Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of propsMeans for counteracting lateral sliding on inclined floor
The invention relates to the field of mechanical engineering and can be used in mining machines with cutting members (augers, bits, drums). The essence of the invention is that protective screens (4.1) are additionally provided for the ends (5.1) of hydraulic jacks (4) that are movably coupled to a rotary member (2), wherein said protective screens (4.1) are mated with the rotary member (2). The technical result is an increase in the operating reliability of the mechanism for adjusting the rotary member (2).
1. Technical field: mechanical engineering. 2. Direct application: to railway transportation for feeding sand under wheels. 3. Essence of the utility model: the device is additionally provided with a shaker, the impacting element of which is connected to a shaft, and a counterpart is provided on the housing. 4. The technical result is an increase in the looseness of sand, and a decrease in the consumption of materials, which improves operational reliability.
1. Technical field: mining machinery manufacturing. 2. Direct use: support for a junction between a longwall and a working. 3. Essence of the invention: at least one additional four-bar linkage and table adjustment props are hingedly connected to the table and base of the section. 4. Technical result: an increase in the safety and effectiveness of adjusting and operating a mechanized system.
E21D 23/00 - Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyors, mining machines or guides therefor
E21D 11/36 - Linings or supports specially shaped for tunnels or galleries of irregular cross-section
1. Technical field: engineering. 2. Direct use: brake systems for lifts. 3. Essence of the invention: a brake shoe shaft is in the form of a sleeve, within which a movable element containing an immovable element is arranged and fastened, wherein a flexible element interacts with the movable element. 4. Technical result: an increase in operational reliability.
1. Technical field of the invention: mechanical engineering. 2. Direct application: Grip brakes for vehicles. 3. Essence of the utility model: a brake caliper is connected in an articulated fashion to a base along an axis perpendicular to the axis of rotation of a rotatable object, a movable brake block is connected in an articulated fashion to a piston rod which interacts with a guide unit formed in a first arm, and a fixed brake block is directly connected in an articulated fashion to a second arm. 4. Technical result: increased reliability and reduced braking energy consumption.
F16D 55/2255 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is pivoted
F16D 65/092 - Bands, shoes or padsPivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
B61H 5/00 - Applications or arrangements of brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
B66D 5/12 - Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
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