SU1643720A1 - Sawing head of stone cutting machine - Google Patents

Description

The invention relates to the mining industry, in particular, to devices for mining wall stones in open and underground mining conditions.

The purpose of the invention is to increase the productivity of a stone-cutting machine by reducing the time spent on auxiliary operations for readjustment of cutting bodies.

Figure 1 shows the kinematic diagram of the saw head of a stone-cutting machine; Fig 2: saw head, stone cutting machine, side view; Fig. 3 shows a top view; Fig. 4 shows the saw head of a stone-cutting machine when producing vertical grooves; Fig, 5 - the same, in the production of horizontal grooves; 6 - the same5 when making a niche and removing the lower rows of stones; Fig.7 is the same when the upper rows of stones are removed.

The saw head of a stone-cutting machine contains two cutting bodies 1, which can be made, for example, in the form of circular saws and kinematically associated engines 2, for example, in the form of hydraulic motors. The main mechanism for turning the cutting bodies 1 is made as mounted on the hollow shaft 3 with the possibility of rotation and fixation in intermediate positions of the body 4 and two guide bushings 5 fixed on it, the longitudinal axes of which are located

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coaxially and perpendicularly to the longitudinal axis of the hollow shaft 3. The main mechanism for rotating the cutting bodies 1 can have an engine 6, which through a worm gear 7 is connected with its hollow shaft 3. Each additional mechanism for turning the corresponding cutting body 1 is made in the form placed in the internal cavity of the housing 4 of the gearbox 8, which can be made worm and have a motor for driving it (not shown). The output shaft 9 of the reduction gear 8 is made hollow and is located coaxially inside the corresponding guide sleeve 5. Each mechanism for changing the distance between the cutting bodies 1 is made in the form of installed with the possibility of axial movement inside the corresponding output shaft 9 and the rotation of the quill joint with it. In this case, the connection of the quill 10 with the output shaft 9 can be made in the form of a spline connection. A fork 11 is fixed to the mountaineer of each quill 10 to accommodate the corresponding engine 2. A hydraulic cylinder 12 serves to change the position of the cutting bodies 1 relative to each other, which is pivotally connected to the guide sleeve 5 and the fork 11. In this case, each fork 11 is located in a plane perpendicular corresponding to the longitudinal axis of the corresponding quill 10. Each engine 2 by means of a hinge 13 is fixed on the fork 11 and is installed with the possibility of limited rotation relative to the longitudinal axis of the corresponding fork 11 by means of hydrocyl Cable 14, which at one end is fixed on the plug 11, and the other on the engine 2, for example, through cable 15. At the end of the hollow shaft 3, a device 16 can be fixed to remove dust generated during stone cutting, which through the internal cavity of the shaft 3 connected to a turbocharger (not shown). The hollow shaft 3 at the other end has a blade 17 for attachment to a boom of a stone-cutting machine (not shown).

The saw head of a stone-cutting machine works as follows.

During readjustment for slotting vertical grooves, the hollow body 4 is turned by means of engine 6 and gearbox 7 so that cutting members 1 take a position perpendicular to the floor (ceiling) of the bottom (all of the sawing operations described below can be carried out using hydroelectro-automatic ). The rods of the hydraulic cylinders 2 move the pin 10 with the hook 11 fixed on it, on which the engine 2 of the cutting element 1 is hinged.

Moving the cutting bodies 1, set the required size between them, turn on the engine 2 and cut through the vertical grooves. When adjusting for slotting horizontal grooves with the help of engine 6 and gearbox 7, body 4 is deployed in the 90s, the required size is established between the roaring bodies 1 and horizontal grooves are cut through (Fig. B).

The adjustment of the saw head for niche generation and removal of the lower rows is carried out in such a way that with the help of the rod of the hydraulic cylinder 14, by moving the rod 1b, the engine 2 and the cutting member 1 fixed on it are rotated. organ 1 is set perpendicular to the chest of the slaughter. By turning on the gearbox 8, one of the forks 11 is rotated by 180 °, the engine 2 of the other cutting body 1 is turned on and introduced into the bottom niche (Fig.6).

Resetting the saw head to an operation to remove the upper rows of wires

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It is in the reverse order described (FIG. 7).

Claims (6)

1. The saw head of a stone-cutting machine, which includes two cutting bodies, is kinematically connected with engines, and a mechanism for turning the cutting bodies in the form of mounted on the hollow shaft with the possibility of rotation and fixation in intermediate positions of the hollow body and fixed on the last two guide bushings whose longitudinal axes are aligned and perpendicular to the longitudinal the axis of the hollow shaft, characterized in that, in order to increase the productivity of the stone-cutting machine by reducing the time spent on auxiliary operations for changeover of the cutting bodies, it is equipped with additional mechanisms for rotating the cutting bodies, each of which is designed as a gearbox located in the hollow case with a hollow output shaft located coaxially inside the corresponding guide bushing, and mechanisms for changing the distance between the cutting bodies, each of which is made in the form of axially movable inside the corresponding output shaft and jointly rotate with the last quill and fixed on the end of the fork plug to accommodate the corresponding engine, with each motor pivotally attached to the fork and mounted with limited rotation relative to the longitudinal axis of the respective fork, and each fork is located in the plane perpendicular to the longitudinal axis of the corresponding quill. 2. The head according to claim 1, wherein the main mechanism for turning the cutting bodies has an engine, which is connected with its hollow shaft by means of a worm gear. 3. The head according to claim 1, characterized in that each additional mechanism for turning the cutting member has an engine dp of the drive gearbox, and the gearbox is made in the form of a worm gearbox. 4. The head according to claim 1, characterized in that each mechanism for changing the distance between the cutting bodies has a hydraulic cylinder which is pivotally connected to the guide sleeve and the fork, and the connection of each quill with the corresponding output shaft of the additional mechanism for turning the cutting member made in the form of a spline connection. 5.Head pop.1, characterized in that each plug is up to It is additionally connected to the corresponding engine by means of a hydraulic cylinder, which is pivotally fixed at one end to the plug and to the other end to the engine. i 6. The head of pop-1, characterized in that it has a device for removing dust, which is fixed on the end of the hollow shaft of the main mechanism for turning the cutting bodies. Mle // fa a 2 90 ( l- -H SL f  3 P Fie.7