SU992171A2 - Tumbling unit - Google Patents

Description

(54) TEMPLATE INSTALLATION

one

The invention relates to mechanical engineering and is intended for the machining of machine parts by tumbling.

According to the main author. St. No. 467817 is a known tumbling installation, made in the form of a rotating horizontal axis of the frame in which the drum is rotated around a vertical axis, the latter is equipped with disks, such as friction, alternately interacting with the angle 1 fixed on the frame.

A disadvantage of the known tumbling installation is the low durability of the friction discs.

The purpose of the invention is to increase the reliability and durability of the friction rollers.

This goal is achieved by the fact that in a tumbling installation on a square a guide groove is made of a spherical shape, having flat lead-in and exit parts connected to the working spherical part of the curve formed by the intersection of the spherical surface with the cylinder, whose radius is equal to the radius of the roller.

FIG. Figure 1 shows a tumbling installation, general view; in fig. 2 - the same, left view; in fig. 3 — sweep of the guide and form-forming spherical groove; in fig. 4 shows the mutual position 5 of the guide and the roller at the moment of contact; in fig. 5 - the same on the work area.

Tumbling installation contains base 1, support 2 supporting Q driven by rotation from electric motor 3, variator 4 and belt drive 5, shaft 6 ending with fork 7. In bearings of fork 7, shanks 8 are located, tightly connected to the working member (drum) 9 and the rollers 10 and 15 AND, lined at their ends, lined with an elastic friction material (Figs. 4 and 5), alternately contacting with the angle guide 12 during the rotation of the container.

The installation works as follows.

Claims (1)

From drives 3-5, a shaft 6 is rotated with a fork 7 carrying the tool 9 with the mass being loaded into it. When the working body 9 rotates, the roller, for example, 10, enters into a co-tact with the angle guide 12. The entrance part of the guide is a plane that passes into the intersection surface of a sphere with a cylinder, whose diameter is equal to the nominal diameter of the roller. After passing the flat section, the roller, interacting with the transition section of the guide, deforms to take the shape of the working torus part of the guide. At the same time, the contact surface of the roller 10 with the guide elbow 12 increases. As a result of this interaction, the working body 9 receives an additional rotational movement about its longitudinal axis perpendicular to the axis of the shaft 6. Passing the working section of the guide, the roller moves to its output part, shape which is similar to the input form. At the moment of reaching the flat part of the output part of the guide roller, due to the elastic forces of its material, it restores its original cylindrical shape. At the same time, the roller 11, mounted on the opposite shank of the tool body, enters the flat portion of the inlet part of the guide. During this period, the rotation of the working body 9 relative to the longitudinal axis and the damping of the inertia forces of the rotating masses of the installation cease. Having passed the flat portion of the guide, the roller 11 is deformed, acquiring the shape of the working torus part of the guide, setting the rotation to the working member in the opposite direction. Thus, the groove made on the square 12 is not only a guide, but also a shaping one for rollers 10 and 11. From the complex movement of the container (working body) 9, the loading ingredients receive intensive reciprocal movements that facilitate processing. Particle accelerations are variable not only in magnitude, but also in direction at different points in time. This is especially facilitated by the inhibition of the movement of the drum Around the longitudinal axis when the rollers are located on flat sections of the guide. In this case, the inertia forces of the rotating parts of the installation are reduced, but the mass loaded into the container retains its inertial motion. When the working body is reversed, the ingredients of the greater mass still continue to move equally slowly, and the ingredients of a lesser mass, slow down, start a uniformly accelerated motion in another direction, before receiving an acceleration of the opposite sign. Thus, the loading particles are subject to intensive mutual movement. The above described design of the guide contributes to the long-term performance of the rollers, which increases the reliability and durability of the installation. The proposed installation is distinguished by its simplicity of design, compactness (the arched shape of the support 2 allows positioning the drive part of the installation under it and under the plug 7), reliable operation, low cost of manufacture and operation. Formula of invention Galtovochny installation according to the author. St. N ° 467817, characterized in that, in order to increase the reliability and durability of the friction rollers, a spherical guide groove is made on the square, having a flat lead-in and exit parts connected to the working spherical part of the curve formed by the intersection of the spherical surface with the cylinder whose radius is equal to the radius of the rink. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 467817, cl. B 24 V 31/02, 1975. 2 6  I //. five Ai1i 1 3 // 1g  (puS.i (rig.g.