SU829922A1 - Working member of excavating machine - Google Patents

Description

one

This invention relates to the mining industry and is intended for the extraction of minerals and the excavation of mines.

Excavating mechanisms of the excavation machine are known, including, a drive housing and a mechanism of a suspension with dies associated with the drive,

The disadvantage of this executive body is that the cutters perform plane-parallel movement, while the rear and front kinematic cutting angles vary widely, which, at constant angles of sharpening cutters, reduces the efficiency of cutting

Also known are the actuators of the excavation machine, including a drive, a housing, and a dangling mechanism with dies, associated with the actuator K

However, the device is hacked by the complexity and lack of efficiency of coal destruction.

The purpose of the invention is to simplify the design of the comb actuator and increase the efficiency of destruction of the array.

To achieve this goal, the suspension mechanism is a Comb made in the form of arcs, articulated

between themselves, and levers, on which the arcs are hinged.

FIG. 1 schematically shows the executive body, front view (from the side of the bottom); FIG. 2 is a section A-A in FIG. 1 (or view from above), FIG. 3 is a section BB in FIG. 1 (or side view), in FIG. 4 and 5 is a top view at the two extreme positions of the executive body.

 The executive body consists of body 1, drive 2 for continuous cutting, connecting rod 3 and 5 lever gears, levers 4 and 5, arcs 6–9 parallel to the face, rods 10 and 11, combs 12 with tool holders 13 and 14 and double-sided cutters 15 action Dougie

0 are pivotally interconnected and pivotally mounted on levers to form a system of pivotal parallelograms, thus achieving three operational functions: suspension,

5 transmissions of the working movement from the drive to the cutters and the synchronizer of forced rotation of the incisal combs to the required cutting angle.

Executive body works

Claims (2)

0 as follows. When the actuator 2 rotates, the connecting rod 3 drives the rocker arm 4 and 5, and the distance between the arcs b and 8 also periodically changes, which leads to a change in the angular position of the combs 12 with the incisors 15 relative to the bottom of the chest, thereby ensuring zarub.sa incisors in the array at the required angle of cut. The executive body of the proposed design allows reducing the width of the loose bottomhole space (to the magnitude of the drive rod diameter), thereby improving the conditions of shipment of the rock mass and maintaining the roof in the bottomhole space, reducing cutting and feed forces during cutting, increase the flow rate and performance of the executive body. By changing the ratio of the shoulders of the link-lever mechanism, it is possible to change the width of the chamber to be removed, and by changing the nominal distance between the arcs, for example, using grooves and locking devices at the hinges, it is possible to adjust the cutting angles of the cutters in the optimum mode. DETAILED DESCRIPTION OF THE INVENTION The excavation machine executive includes a housing, an actuator, and a combs suspension mechanism associated with the actuator, which also means that, in order to simplify the design and increase the efficiency of destruction, the combs suspension mechanism is made in the form of arcs pivotally interconnected, and levers on which arcs are pivotally mounted. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 699174, cl. E 21 C 27/02, 1975, 2. USSR author's certificate number 385038, cl. E 21 C 27/16, 1966 (prototype). J / 5 / yx / x :: x s y / x x; / x - x Sx / xg x; / X / Ny CWPrx WV Syyx S: X WXX bb. 1Rig.Z