SU1723013A1 - Support-rotating device - Google Patents

Abstract

The invention relates to a lifting machinery industry, in particular to the design of a turntable for transport processes, for example for transportation on conveyor lines. The purpose of the invention is to increase reliability. The turntable includes a turn-depreciation mechanism located between the base 1 and the turntable 4 articulated with the turntable body 5 and the sleeve 6. There are hemispheres 2 along the centers of the base 1 and platform 4, and the seat is also centered. 3. Inside the casing 7 of the swing-damping mechanism, a spring 8, parts 9 and sliding sleeves 10 are mounted. The supporting elements of the platform 4 are balls 11 installed in a cavity formed by hemispheres 2. There is a gap between the planes of the supporting base 1 and the lower part 9 to prevent the surface of the supporting part 9 from contacting the surface of the bottom 1.1 sludge. w Ё

Description

The invention relates to a lifting machinery industry, in particular to the design of a turntable for transport processes, for example for transportation on conveyor lines.

The purpose of the invention is to increase reliability.

The drawing shows the proposed device.

The turntable contains a fixed support base 1, on the plane of which in the center there are a ball hemisphere 2 and a seat 3, a turntable 4 articulated with the housing 5 and a guide sleeve 6. In the center of the turntable there is a ball hemisphere 2.

Between the base 1 and the rotary platform 4 there is a rotary-damping mechanism consisting of a housing 7, inside of which a spring 8, parts 9 and sleeves 10 are mounted.

The working surfaces of the housing 5, the sleeves 6 and 10, the housing 7, the support parts 9 ensure the independence of rotation of the turntable around the axis O-O.

The supporting elements of the turntable 4 are balls 11 mounted in cavities formed by the hemispheres 2 of the platform 4 and the upper support part 9 and the hemispheres 2 of the base 1 and the lower support part 9.

Between the planes of the support base 1 and the bottom part 9 there is a gap a, designed to prevent the surface of the support member 9 from contacting the surface of the fixed support base when the support-turning device is started.

In the lower part of the housing 7 is made a groove 12, and in the lower part of the turntable

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5 is a hole 13c with a thread into which a screw 14 is screwed. Screw 14 is intended to limit the movement of the body 5 of the turntable 4 vertically.

The pan-tilt works as follows.

When the rotary platform 4 rotates around the axis 0-0, the sleeve 6 and the body 5 move on the outer surface of the body 7, the balls 11 roll in a space formed by the hemispheres 2. placed on the platform 4 and the upper support part 9 and on the fixed support platform and the lower part 9 Inside the casing 7, they rotate around the axis 0-0 bushing 10, supporting parts 9, spring 8, which creates optimal conditions for the operation of the whole mechanism.

At the points of contact of the surfaces of cylindrical hinges, horizontal forces arise, and in spherical hinges, in addition to horizontal forces, vertical forces act through the center of the spherical hinges (which are due to the weight and force of a normally extended spring 8). From the possible effect of different loads and errors in the manufacture of hinges, these forces are not the same, which leads to the appearance of an additional horizontal force, which tends to move the rotating platform 4, the housing 5, the sleeve 10 of the slide, the part 9 and the sleeve 6.

Under the action of additional force, the rotatable platform 4, the housing 5, the sleeve 10 of the slide, the parts 9, the sleeve 6 in the horizontal plane move to a position at which these forces are least or disappear completely.

Claims (1)

Invention Formula A turntable, containing a fixed base. A turntable connected to it with its body and a turn-damping mechanism, including a spring placed between the support parts, one of which is connected to the base, and the other to a turntable, different By the fact that, in order to increase reliability, the tilt-damping mechanism includes a cylindrical body rigidly connected with its base to a base with an annular recess on its side surface and an axial hole. mounted in the last sleeve of the slide, in which the support parts are installed, and balls, which are aligned with the axis of the cylindrical body of the swing-damping mechanism, one of which is installed between the base and the first support part in the spherical recesses formed therein, and the other the platform and the second support part in the spherical recesses formed therein, the turntable is provided with a guide sleeve, which covers the upper part of the cylindrical housing of the turntable of the rotary mechanism, and the turntable case is provided with its stroke limiters, made in the form of screws installed in its lower part, the ends of which are placed in the annular recess of the case of the turn-damping mechanism.