SU10521A1 - Device for securing the iron rod - Google Patents

Description

The conventional fastening of the cutting rod with the gripping sleeve in the cutting machines by means of a wedge mounted on the rod, which fits into the corresponding slot of the sleeve, has the disadvantage of relatively fast one-sided wear of the securing wedge. The present invention aims to eliminate this disadvantage by fastening the rod with the sleeve with the help of a relatively large number of protrusions located around the circumference of the rod and included in the corresponding notches of the sleeve.

In FIG. 1 is a side view of the iron rod; FIG. 2-exciting sleeve, part in section; FIG. 3-end of the sleeve in the section with an inserted rod and a screwed nut; FIG. 4 is a section along LB in FIG. 3; FIG. 5-section along the C-D in FIG. 6; FIG. 6-another end of the sleeve, exciting cutting-iron bar.

In order to transmit the movement to the cutting rod a, a bushing sleeve b is provided, provided on both sides with circumferentially distributed cutouts c, in which appropriately arranged pins are inserted d

the rod and the iron rod, thereby creating an obstacle to the mutual displacement of the rod and the rod. A cut-out device with at both ends of the sleeve b is provided so that the rod a can be inserted on both sides. Not working cuts from the side facing & The sleeves according to the invention are used to prevent the hollow nut f from rotating by screwing the head with the I rod and rod of the rod to the sleeve, which is done by means of a dog A (one or several) rotating around the bolt, which is spirally twisted. spring i. Putting the key into the tetrahedron / s of the nut, shoulder fi of the dog h, overcoming the resistance of the squad g, pressed against the outer side, with the shoulder extending beyond the limits of the notches c. Upon removal of the key, the doggie again occupies the position indicated in FIG. 3 position, the entrance of his shoulder b in the cutout from the sleeve. In order to achieve sufficient strength and strength, the T wave,

protruding between every two relatively deep cuts, must have a known width. This circumstance is associated with the inconvenience that if, when tightening the nut f, the dog h is just against the t tooth, then the nut must be unscrewed so that the dog can snap into the notch. This drawback, according to the invention, is eliminated by the fact that between every two notches there is one notch from a deeper depth with a lesser depth. B dog goes down and .1 into a cutout with, or into a cutout with thanks to what razinchi- i

The nut is limited to a slight angle of rotation.

The subject of the patent.

A device for securing the cutting rod in a sleeve enclosing it, characterized in that sleeve b is provided at both ends with cutouts, of which 1 cutouts with (fig. 2, 3) c.1 are fitted to enter pins d (fig. 1, 5, 6) rods a, and cuts for entering dogs / g, nuts (fig. 3, 4) to be threaded to the other end of the rods a.