SU841997A1 - Screw press - Google Patents

Description

one

The invention relates to mechanical engineering, in particular, to the design of press-forging equipment.

A screw press is known that contains a slide located in the bed guides articulated through a subframe with a screw screwed with a nut, with a gear flywheel rigidly fixed on the upper part of the screw, and the nut is mounted in the frame rotatably in bearings and made at the same time with additional notched flywheel; constant engagement through temstring counterconversion with the mentioned gear flywheel of the GO screw

. However, the gears of the flywheel and the Supplementary flywheel nuts do not provide high reliability of the press.

The purpose of the invention is to increase the reliability of the press.

This goal is achieved by the fact that a screw press containing a slide located in the direction of the base of the bed is articulated via a subgun with a screw screwed with a nut, with a gear flywheel rigidly fixed on the upper part of the screw, and the nut is mounted in the frame rotatably in podshpniks at the same time with an additional gear flywheel, which is in constant gearing through the countercontrol gears with the said gear flywheel of the yinta, is provided with a clip made in the form of a double flat ring with fixed GOVERNMENTAL on it stationary axes, which freely rotatable gears are arranged mentioned krntrvrascheni.

FIG. 1 shows the proposed J press, a general view; in fig. 2 - node I. in FIG. one..

A screw press contains a frame I, in the direction of which the slide 2 moves, connected via sub-: - 3, the helix with screw 3, making a screw motion. The non-self-tapping screw 3 is screwed with the nut 4, which is rotatably mounted in the cross-frame 61, and with its gear flywheel 5, the screw 3 mates with the gear flywheel of the nut 4 by means of gears 7, which are mounted in the frame of the frame with free rotation. The nut 4 is connected by a stubby collar; effort arising on crawl. and staninu. :, --.--.; .--. . In the frame 1 with rigidly fixed 6 housings, the hydraulic drive shaft 8 of a reciprocating action is installed; the stresses acting on the slide 2, the active force directed parallel to the axis of the screw 3. The currents 9 of the double acting hydraulic cylinders 8 double act through the brackets 10 to drive the impact on the slide. The yoke 11 (Fig, 2) is made in the form of a flat-sided ring. in it are fixed axes fixed in it, 12,. ifta feotbpbfx with rotational possibility on bearings 13 are mounted with hex 7, Hose 11 with flange rigidly mounted on frame 1, Execution of clip 11 in the form of a double ring ensures exact position of gears 7 in it relative to the common axis of rotation of the flywheel 5, screw 3 and flywheel 6 nuts 4, which eliminates tooth misalignments, increasing the durability and reliability of the synchronization node of the counterwheel flywheels and the press as a whole, the press works in the following way: -

The slider 2 is in the upper position and held by the active force of the hydraulic cylinder 8 with its direction of action upwards. When a driving active force is applied, the resulting magnitude of which is more opposed to the forces, slider 2 begins to move downward with a certain acceleration, pulls the screw 3 with its flywheel 5 and causes the counter screw 3 and nut 4 to move as it is according to the laws of non-braking screw the gears and the gearing by a flywheel of a screw and nut with intermediate gears 7, which rotate freely in bearings 13 mounted on axles 12,

Claims (1)

Invention Formula A screw preseed containing a slider located in the bed guides, which is articulated through a bogie with a screw, screwed with a nut, and rigidly on the upper part of the screw. the gear flywheel is fixed, and the nut is mounted in the frame with the possibility of rotation in the bearings and made integral with the additional gear flywheel, which is in constant engagement through the gears of the reverse gear with the said gear screw flywheel, 74, When the screw and nut are rotated in the movable working parts of the press, a drop of energy is generated in the accumulator, which during the working stroke is transformed into useful work for the deformation of the forging. When operating in the hammer mode, the active drive force is turned off before the tool contacts the workpiece, and it is stamped only by the kinetic energy of the working parts of the press. When operating in the press hammer mode, the drive-active force is not disconnected until the completion of the working stroke, providing Yvai with stamping with both kinetic energy and driving force that acts on the press slide. When operating in the press mode, a slider with a tool slowly slowing the magnitude of the active drive force, the force approaches the workpiece, and when the tool with the workpiece is reached, the greatest amount of active drive force is obtained, the resultant driving force on the slider active force acting down, Does not participate in the process of moving the slide and the completion of the machine cyclans in the course of the stroke in its initial upper position, the return will be completed to active .sily drive cylinder with its napravleniem.deystvi up. The effectiveness of the use of the proposed screw press is determined by ensuring the reliability of its drive and the expansion of technological capabilities, ttsm that, in order to increase the reliability of the work of the press, it is equipped with a clip made in the form of a double flat ring with fixed axles fixed on it, on which with the possibility of free rotation the aforementioned countercontrol gears are installed. - Source of information taken into account in the examination 1. USSR Author's Certificate No. 558478, cl. B 30 B 1/18, 1974. Ri1. one 13 (rig 2