SU493629A2 - Corrector - Google Patents

Description

one

The invention relates to the field of instrumentation.

Known correctors, containing input and output shafts, connected by a gear gear, including a functional cam, and transmission elements.

However, such correctors have low accuracy (due to the presence of a dead stroke) and a relatively narrow correction range.

The proposed corrector is equipped with an eccentric gearbox axis mounted on a shaft, a roller with shoulders in constant contact by means of a spring with a functional cam, made in the form of a rotational screw, whose turn has a variable radius, corresponding to the correction law, constant pitch and rectangular profile. The gears of the gearbox are made split with a tension spring inside.

The drawing shows the corrector.

The corrector contains a cylindrical body 1, in the center of which are input and output shafts 2 and 3. At the output shaft, a functional cam 4 and a split spring-loaded gear wheel 5 are strengthened. The functional cam is made in the form of a multi-turn screw, the turn path of which has a variable radius corresponding

the law of correction, constant pitch and rectangular profile.

Parallel to the cam axis on two supports A rocking chair 6 is installed in the body. Roller 8 is placed on the cylindrical part 7 of the rocking chair. The roller is pressed to the cam by means of a spring 9 that is fixed to the ends of the rocking chair and to the body. When the cam rotates, the roller, provided with the shoulders, is forcibly driven around the cam, at the same time sliding along the shaft. On the rocking axis, a split sector 10 is fixed with a play pick-up spring P. Sector 10 is engaged with a flange shaft 12, which sits freely on INPUT shaft 2. A lever is attached to the flange with axle 13, on which two gear wheels rigidly connected to each other 14 are attached. More of the two wheels is coupled to the tribe, and the smaller one is connected with the dual wheel 5 of the OUTPUT shaft 3.

The corrector works as follows. When the shaft 2 is rotated at an angle a, the output shaft 3, connected to the shaft 2 by a gearbox with a gear ratio t, is turned by

angle ia, if the roller 8 does not move along the working path of cam 4 and does not rotate rocking chair 6 with sector 10. However, the rotation of rocking 6 simultaneously (due to the variable radius of cam 4) drives the rotation 12 and the gears 14 and 5, the cam 4 and the output shaft 3 are complemented by a correction angle A (fa).

Subject invention

1. Corrector containing input and output shafts connected by a gear gear, including a functional cam, and transmission elements, characterized in that, in order to increase accuracy and extend the correction range, it is equipped with an eccentric axis of the gearbox axis, roller with shoulders , being in constant contact by means of a spring with a functional cam, made in the form of a multi-turn screw, whose turn has a variable radius, corresponding to the law of correction, constant pitch and length Rectangular profile.

2. Corrector io p. 1, characterized in that in it the gears of the reducer are made split with the tension spring inside.

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