SU1721342A2 - Pulsing drive - Google Patents

Abstract

The invention relates to mechanical engineering and is used in pulse drives. In order to expand the kinematic possibilities by obtaining additional linear pulses, the pulse drive is equipped with gear screw 12 - nut 13 and two gears, respectively, wheel pairs 14, 15 and 16, 17 with different gear ratios connecting separately the screw and nut with the central shaft 3, from which rotational pulses are taken, worked out by switching the pusher 4, and at the same time linear pulses are removed from the nut 13 by a support 18, the magnitudes of which are determined by the angular rotation of the shaft 3 and aznostyu ratios pairs of wheels 14, 15 and 16, 17. 1-yl.

Description

with

with

y / 7 /.

- -i 4

MDL

vj BO

WITH

Yu

to

The invention relates to mechanical engineering and is an improvement of the invention according to the author. No. 1502890.

The known impulse drive includes a housing, a coaxial motor and a central shaft, a controlled pusher, a locking mechanism of the bevel gears, a central toothed bevel gear and a carrier with satellites for interacting with the central wheel, the bobbin being connected to one of two axially mounted links. movement. - a central wheel or carrier, one of which is also associated with the engine, and the other with the central shaft.

Such a drive has limited kinematic capabilities.

The purpose of the invention is to expand the kinematic capabilities of a pulsed drive by additionally receiving linear pulses.

The pulse drive is additionally equipped with a screw-nut gear and two gears with different gear ratios connecting the screw and nut respectively to the central shaft.

The drawing shows a kinematic diagram of a pulse drive.

The drive includes a housing 1, coaxial motor 2 and a central shaft 3, on which a central gear bevel wheel 5 connected to the pusher 4 is mounted on a sliding key, driven 6 with satellites 7 and 8, a locking mechanism composed of gear bevel wheels 9 and 10, the first of which is coaxially associated with the wheel 5, and the other is mounted for free rotation on the axis 11 attached to the housing 1, and additionally the transmission screw 12 is a nut 13 and two gears, respectively, with wheels 14, 15 and 16.17 with different gear ratios audio mi. The latter separate the screw 12 and the nut 13 with the central shaft 3 separately.

The wheel 16 has a widened crown, which ensures that the wheel 17, which is longitudinally displaced during operation, and connected to the caliper 18, is engaged with this wheel. The rotary discs are removed from the shaft 3, and the linear swivels are removed from the caliper 18.

Pulse drive works as follows.

When the pusher 4 is on, which corresponds to the axial displacement of the wheel 5 to the left before it is jammed with satellites 7 and 8, the carrier 6, the satellites and the wheel 5 form

a rigid coupling that transmits rotation from the engine 2 directly onto the shaft 3 and, respectively, through the gears of the wheels 14, 15 and 16, 17 to the screw 12 and the nut 13, which are

In this case, rotation is obtained in the same direction, but with different angular velocities, determined by their gear ratios.

Wheels 9 and 10 locking mechanism

in the considered phase of operation of the drive, they are in kinematically correct engagement and the wheel 10 rotates freely on the axis 11.

When you turn off the pusher 4, corresponding to the axial displacement of the wheel 5 to the right, the transfer of the wheels turns out to be unlocked, and the transfer of torque from the engine 2 to the shaft 3 is interrupted and the shaft 3 instantaneously brakes

the locking mechanism due to the automatic jamming of the wheels 9 and 10 during the return stroke of the pusher, taking into account the connection of the latter with the wheel 9. In this phase of the drive operation, led by the carrier 6, satellites 7 and 8

idle roll on the wheel 5 locked by the locking mechanism.

During subsequent switchings of the pusher 4, the pulsed movements are worked out until the nut 13

will, for example, be at the extreme right. After that, it is necessary to switch the engine 2 to the opposite direction of its rotation and conduct pulse testing in the opposite direction or

having blocked the wheels with the pusher 4 (rigid clutch mode) and disconnecting the consumers from the drive, move the nut 13 to the leftmost position, then reconnect to the consumers drive, return the initial direction of rotation to the engine 2 and conduct the pulse processing in the same direction.

The magnitude of the linear discrete worked out by the drive in the general case depends

of the magnitude of the swivel discrete, the gear ratios of the gears of the wheels 14, 15 and 16, 17 and the pitch of the screw 12 and is determined by the relative linear displacement along the pulsed rotating screw of the nut 13, i.e. difference of impulses of angular turns of the screw and nut.

The proposed drive provides simultaneous testing of the rotary and substantially small at the nominal linear

pulses.

Claims (1)

Invention Formula Pulse drive according to autor. # 1502890, characterized in that in order to expand the kinematic possibilities by obtaining additional linear pulses, it is equipped with gear ratios connecting the screw and the nut, respectively, with the central shaft.