SU1242339A1 - Apparatus for grinding non-metallic materials - Google Patents

Description

The invention relates to the construction machinery industry, namely to the equipment for grinding and polishing slabs of concrete, natural and artificial stone.

The purpose of the invention is to reduce the power consumption of the device by reducing friction losses in the mechanism for moving the product.

FIG. a device diagram is shown; in fig. 2 - the same, side view,

On the machine bed (not shown, there is mounted a grinding head containing a tool (abrasive or diamond wheel) attached to faceplate 2 connected to a hollow spindle 3 by a rubber diaphragm 4. Belt drives 5 and 6 transmit the rotation from the motor 7 to the spindle 3 and mounted inside it shaft 8 with an eccentric 9 connected to the faceplate 2 through the bearing to.. The parts 1 1 are machined onto the conveyor belt. Made in the form of a web 12 of ordinary rubber, on the lower side of which there are longitudinal Modified rubber strips 13, whose friction coefficient for steel is more than 100 times less than the usual rubber friction coefficient for steel. When moving, the tape rests on a fixed support 14, which has a stepped cross-section 242339J

nom direction profile. At the same time, the conveyor belt is supported on the support 4 only by strips 13 of modified rubber. The conveyor has end drive 15 and J at 16 drums, which also have a stepped profile, but come into contact with the conveyor belt only from the strips 12 of. conventional rubber.

- 10 The device operates as follows.

When you turn on the engine 7, the rotation is transmitted through the V-belt; transmission 5 to the hollow spindle

tS 3, and the V-belt transmission 6 - on the shaft 8, and11, the spindle 3 provides an abrasive tool 1 rotating movement, and the coaxial shaft 8 with the eccentric 9

20 additional radial displacements, therefore each point of the formation tool describes a complex trajectory on the plane.

25

thirty

Parts are laid on the upper belt of the conveyor belt and, when the drive is switched on, the movement is fed for processing. As the conveyor belt moves as it is supported on the support by layers 13 of modified rubber, cut, there is friction loss. At this time, the drive drum contacts strips of conventional rubber, providing good grip.

Parts are laid on the upper belt of the conveyor belt and, when the drive is switched on, the movement is fed for processing. As the conveyor belt moves as it is supported on the support by layers 13 of modified rubber, cut, there is friction loss. At this time, the drive drum contacts strips of conventional rubber, providing good grip.

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- Compiled by S. Ukhprsky Editor N. Tupitsa Tehred L. Oleinik Proofreader T, Kolb

Order 3651/17 Circulation 7.40 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raup1ska, nab. 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

C 5 7) A DEVICE FOR GRINDING NON-METAL MATERIALS, mainly concrete, on a conveyor in the form of an endless rubber tape stretched over end drums and located in the processing zone of a fixed support, characterized in that, with the aim of reducing the energy consumption of the device, the tape is equipped with at least three rubber strips intended for contact with the bottom made on the surface of the support of the depressions, while on the surface of the drums are made depressions for placement with a clearance of rubber strips, and the coefficient of friction of rubbers howl tape reel is selected in at least 100 times greater coefficient of friction rubber strips with the support.