Milling cutter

FIELD: mining industry.

SUBSTANCE: device has frame, front and back supporting rollers, cutter with working elements in form of thin plates placed along spiral line, forming apparatus, drive. Edges of thin plate of working elements are made in form of parabolic curve. Plates of working elements are made even, slanted and, in turns, rotated in opposite directions. Back support roller is mounted on side holders of front portion of forming apparatus.

EFFECT: higher quality.

8 dwg

 

The invention relates to a device for milling peat deposits, in particular for milling drums used in the peat industry.

The famous mill, consisting of a frame with a front support roller, the lifting mechanism of the cutter, which is made in the form of a set of pipe circular saws, which are separated by rings, disc lifts, which are located in the rear of the frame and which is the rear supporting roller, two cleaners, one of which is in contact with the grooves formed adjacent the disk cutters, and other cleaner in contact with the grooves of the disk lift, drive, a chain drive connecting the front roller mill (Antonov VA, Kopenkin E Technology and complex mechanization of peat production. M.: Nedra, 1983, s-112. is, s).

The lack of a router is slow performance when milling horse peat deposits due to the constructive design of the work item cutters.

The closest prototype to the technical essence is a mill, consisting of a frame with front and rear track rollers, between which is placed Presbury, forming of which is assigned a work item in the form of thin plates (flat blades), equipped with an air knife and cover with the guide plate, the lifting mechanism cutters mounted on b the Cam frame, in the rear part of which is roll forming machine, made in the form of smooth and shaped (annular grooves) of the rolls (which is the bottom of bunker), one of which is in contact cleaner, under which is fixed a guide plane, above which (basic rolls) is the second pair of rolls, a drive connecting the cutter and formulating with PTO (Antonov VA, Kopenkin E Technology and complex mechanization of peat production. M.: Nedra, 1983, s.112, RIS).

The disadvantage of this mill is slow performance when milling lowland peat deposits due to the constructive design of the working element of the milling drum.

The objective of the invention is the creation of high-performance and reliable devices with greater functionality.

The technical result - the extension functionality while enhancing the quality milling upland and lowland types of deposits in a wide range according to the degree of decomposition and humidity.

The technical result is achieved by the fact that the milling cutter comprising a frame, front and rear rollers, a cutter located along a helical line of work items in the form of thin plates, roll forming machine, drive, according to the invention the edges of the thin plate working is a separate estimate is made in the form of a quadratic parabolic curve, when this plate work items performed isometric, oblique and alternately deployed in opposite directions, and the rear support roller mounted on the side arms of the front section roll forming machine.

The proposed mill is illustrated by drawings, where:

figure 1 - the mill, side view;

figure 2 - layout of work items (sweep the outside diameter of the pipe cutter);

figure 3 shows the milling drum, and end view, b - in B;

figure 4 shows the work item and on a flat surface, b - view;

figure 5 - the same, regular and on a flat surface, b - type for G;

figure 6 shows the position of the axes of coordinates on a flat surface plate work item and the intersection of functions quadratic parabolic curve with the axis H (point AA) and Y axis (point b), when a<0.

The mill includes a frame 1. The front support roller 2 is attached to the side brackets of the front frame 1. The control mechanism of relief of the surface deposits has two triplici lever 3, two rollers 4, the ends of the axis which rely on bearings mounted in the side walls of the lower arm of the lever 3. Cutter 5 with the casing by pins placed through the nozzles in a rectangular oblong hole 6, is made on the lower arm of each lever 3. Two power cylinder 7 are articulated to what bosom connected with the lugs of the upper arm levers 3, and the rods are connected with the bracket hub cutters 5. Two power cylinder 8 of the hinge housing connected to the frame 1 and the shaft to the third arm of the lever 3. Roll forming machine 9 is attached to the chassis 1 with the cutter 5. On the surface of the pipe cutter 5 are located along the perimeter and along a helical line working element in the form of thin plates 10 and 11 with a cylindrical threaded end on the ground. Each plate 10 and 11 work item has the edge, made in the form of a quadratic parabolic curve. Work items are made equal, and the plates 10 and 11 are made to tilt in different directions at an angle of 20°-30° and alternately deployed at an angle of 15°-40° in opposite directions. The rear support roller 12 is attached to the side brackets of the front section roll forming machine 9.

The router works as follows.

Set the desired milling depth, hydraulic cylinders 8 are pressed tightly rollers 4 to a pre-arranged horizontal surface. This techplace levers 3 are rotated by the rods of the buildings of the frame 1. The cylinders 7 and moves the cutter 5 so that work items (plates 10 and 11) was deepened in the surface at the desired depth. Fixing the position of the cutter 5 in the slots 6 of the levers 3, the cylinders 8 is cut off from the shoulder of the levers 3. Pridvizhenii of a milling cutter in the direction of the arrow A (figure 1) rink 2 tramples down the surface deposits and compacts it. The rollers 4 describe the topography of the Deposit and transmit the information directly to the cutter 5, which removes the specified layer deposits. While working elements serially cut into the peat, and their bent and expanded flat surfaces 10 and 11 are in contact with a sufficient area and like the shovel paddle peat deposits from. Rink 12 tramples down and compacts the surface deposits after treatment by the cutter 5. Peat, abandoned plates 10 and 11 work items in the hopper of the apparatus 9 after compression, is extracted from the grooves shaped roll in the form of enlarged molded particles and spread evenly on the prepared ice rink 12 preserving surface.

The implementation of the edges of thin plates in the form of a quadratic parabolic curve and the location of the work items on the surface of the pipe cutter along a helical line provides gradual inclusion in their work, and therefore reduces the energy required for milling deposits.

Implementation plate work items with tilt in different directions at an angle of 20°-30° and alternately deployed at an angle of 15°-40° in the opposite side provides optimal conditions for cutting non-fiber peat deposits.

The location of the rear track roller in front of the forming apparatus significantly reduces the intensity of a router due to reproach the air traffic management frames in length.

The graph of the parabola represents a square Trencin y=ax2+BX+C (6). When a<0, the function increases, reaches a maximum and decreases. The intersection of the function with the axis H:A1And2with the axis 0Y:(0,C)

The extremum With

in these equations a, b, C - parameters of the parabola lying on the axis of the HU: the x-and y - coordinates of the desired points.

The implementation of the edges of the plates of the working elements in the form of a quadratic parabolic curve with a slope in different directions and deployed in opposite directions allows you to handle lowland and upland types of peat deposits in a wide range as the level of decomposition and moisture.

The proposed mill easily implemented in industry, and small repair shops.

Mill, comprising a frame, front and rear rollers, a cutter located along a helical line of work items in the form of thin plates, roll forming machine, actuator, characterized in that the edges of the thin plate work items executed in the form of a quadratic parabolic curve, with plate work items performed isometric, oblique and alternately deployed in opposite directions, and the rear support roller mounted on the side arms of the front section of the Valk is the first forming device.



 

Same patents:

Milling cutter // 2253016

FIELD: mining industry.

SUBSTANCE: device has frame, front and back supporting rollers, cutter with working elements in form of thin plates placed along spiral line, forming apparatus, drive. Edges of thin plate of working elements are made in form of parabolic curve. Plates of working elements are made even, slanted and, in turns, rotated in opposite directions. Back support roller is mounted on side holders of front portion of forming apparatus.

EFFECT: higher quality.

8 dwg

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