SU945440A1 - Apparatus for separating wall stone from stone body in cavity contour - Google Patents

Description

(5) DEVICE FOR SEPARATION OF A WALL STONE FROM THE MASSIF IN THE CIRCUIT OF A NICHE

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The invention relates to mining and can be used to mine wall stone with stone cutting machines. A device for walling stones is known, for example, by stone-cutting machines. To perform a rear cross cut, a certain amount of stones are broken out and a saw blade tO is inserted into the resulting niche after stripping its bottom.

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The disadvantage of such a device is the absence of mechanization for making a niche, the presence of irregularities on the bottom and on the broken off stones. In connection with this, the bottom of the niche requires additional stripping, and the broken off stones do not comply with GOST and constitute technological waste.

The closest technical solution to the present invention is a device for separating a piece stone, including an actuator, a drive shaft and a rod-tube.

The device contains a drive and the Executive body in the form of a two-cam mechanism of a separate stone 2.

The disadvantage of this device is that the separation of the stone from the array does not occur along planes, but along a curvilinear surface, as a result: the end face of the separated wall stone is uneven, its geometric dimensions are not maintained and the wall stone does not comply with GOST.

The purpose of the invention is to increase the yield of conditioned stone.

Claims (2)

The goal is achieved by the fact that the device for separating wall walls from an array in a niche circuit includes an actuator mounted on the drive shaft and a housing, while it is equipped with a movable spring-loaded ring mounted on the drive shaft, and the actuator is made in the form of flexible reinforced elements covering the drive shaft and mounted on a movable spring-loaded ring, and in the case there is an L-shaped groove, and the drive shaft is equipped with a pin placed in the lead. Figure 1 shows the device, a cross-section; figure 2 is a view of And figure 1; on fig.Z - device, top view. The device includes a drive shaft 1, on which the housing 2 is rigidly fixed, which has screw lugs 3 on the outer cylindrical surface, which help improve the exit of the tip. A cylindrical spring is installed in the case, with one end abutting against its bottom, and the other in a ring 6, which is movable on key 5. The ends of flexible reinforced elements 7 consisting, for example, of steel wire and cutting washers, are rigidly fixed to ring 6. Flexible cutting elements 7 cover the drive shaft 1, and their free ends are fixed by the body 2 due to the presence in its hub of the L-shaped groove and the pin 8 interacting with it on the drive shaft. At the end of the drive shaft 1 on the bearing mounted centering element 9. The device operates as follows. In the initial position, the flexible elements 7 are laid (wound) on the drive shaft 1, the spring is compressed. The housing 2 is located at the extreme forward position, preventing the free ends of the flexible elements 7 from leaving its cavity. The pin 8, which is located in the L-shaped groove of the hub of the housing 2, holds it in this position. The device is inserted into the array at the intersection of the horizontal and vertical kerf up to the stop of the centering element 9 c. the bottom of the cut. The drive of the shaft rotation is activated. At the moment of activation, the pin 8 leaves the process of the L-shaped groove of the hub of the housing 2 and the latter is displaced by the action of a spring back to the length of the groove and then the shaft 1 rotates together with the housing 9A 4 2 and the ring 6 connected to the shaft 1 through the key 5 of the cup 6. At the same time, the free ends of the flexible elements 7 are released and due to the arising centrifugal force they are pressed against the array, the cutting process is carried out. As the flexible elements 7 are inserted into the array, the ring 6 under the influence of the spring 4, rotating together with the housing 2 and the shaft, moves along the shaft 1 on the key 5, having performed the feed movement. In this way, sawn stone massif k. Device 1 is reset and the operation is repeated for the following stones. The device allows to obtain high-quality wall stone when making the entry niche. This does not require additional cleaning our days. The effectiveness of the device lies in the increased output of the conditioned stone. Apparatus of the invention for separating a wall stone from an array in a niche contour, comprising an actuator mounted on the drive shaft and a housing, characterized in that, in order to increase the output of the conditioned stone, it is equipped with a movable spring-loaded ring mounted on the drive shaft, and the actuator the body is made in the form of flexible reinforced elements, covering the drive shaft and mounted on a movable, spring-loaded ring, while in the case there is an L-shaped groove, and the drive shaft is equipped with a pin, placed in the groove. Sources of information taken into account in the examination 1.Kalanin K.P. Development and use of saw limestone in the Moldavian SSR. Chisinau, Maps Moldovan sche, 1959, p. 170 2.Certificate of the USSR N 330251, cl. E 21 C 47/10, 1970 (prototype).