SU1198376A1 - Arrangement for coarse and accurate movement of controlled link - Google Patents

Abstract

DEVICE FOR GTUBOGO and accurate movement of the control units comprising coaxially mounted in the housing rotatable worm wheel and handle coarse movement associated with the controllable element, the screw, coupled to the worm wheel and communication Zann with the controls precise movement, characterized in that, in order to increase the convenience of operation, the coarse displacement handle is mounted with the possibility of axial displacement; the first end is connected to the worm gear with a coaxially controlled coupling, the coupling half is controlled which is connected to the handle and provided with two coaxial pushers, one of which is connected to the housing through the coupling preload spring, and the other with the movable element of the coaxial faults (L of the pair installed in the housing: se and equipped with a coupling opening steering wheel, and paired with the second end of the coarse displacement handle.

Description

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The invention relates to mechanical engineering and can be used in control devices.

The purpose of the invention is to increase the convenience of operational efficiency.

The drawing shows the proposed device. .

The device for coarse and precise displaceable control link is supported coaxially mounted on housing 1 for rotation of the worm gear 2 and handle 3 of coarse displacement associated with control link 4, the worm to 5, are coupled with a worm gear 2 and its Zannuyu with the steering wheel 6 exact. Movement. Handle 3 of coarse movement is mounted with the possibility of axial movement, the first end of .7 is connected to the screw and the wheel 2 is coaxially controlled by the coupling 8, the coupling half which is controlled by the handle 3 and is equipped with two coaxial push rods 10 and 11 , one (10) of which is connected to the housing 1 through the spring 12, press the coupling 8, and the other (11) with the movable element 13 of the coaxial screw pair 14 installed in the housing 1 and equipped with the steering wheel 15 uncoupling the coupling 8, and is coupled with the second the condom 16 of the handle 3 is a rough movement. The surface of the handwheel 15 is made in the form of mating conical 17 and concave toroidal 18 surfaces, the handle 3 is connected to the link 4 tons gami 1

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The device works as follows.

Move the handle 3 in the axial direction and through the pusher 10

5 compress the spring 12 and open the sleeve 8. While holding the handle 12 with the spring 3 in a compressed state, turn the handle 3 to the angle required for coarse movement of the link 4.

to Fixing the handle 3 and the link 4 in the selected position is done by removing the axial force from the handle 3, as a result of which the spring 12 closes the coupling 8 and the handle 3

ts is connected to the worm gear 2, which is in self-braking engagement with the worm 5. Then turn the handwheel 15 of the worm 5 and through the worm gear 2,

20, the clutch 8 performs an exact movement of the controlled link 4. In this case, the gear ratio of the friction link can change the surface of the handwheel 15 - the worm to

25 by applying force on different diameters of the handwheel 15. If necessary, long-term coarse control of the link 4, rotating the handwheel 15 of the movable element 13

3Q ryes 14, through the pusher 11, the handle 3) the pusher 10 squeezes the spring 12 and opens the sleeve 8, then rotates the handle 3. To fix the selected position of the link 4 or go to an exact movement, hold the handle 3 away from turning, turn, steering wheel 15 in the direction corresponding to the closure of the coupling 8.

Claims (1)

DEVICE FOR COARSE AND PRECISE MOVEMENTS OF THE CONTROLLED LINK, comprising a worm wheel and a coarse shift handle coaxially mounted in the housing and rotatable associated with a controlled link, a worm coupled to the worm wheel and connected to the steering wheel of a precise movement, characterized in that, in order to improve ease of use, the coarse handle is mounted with the possibility of axial movement, the first end is connected to the worm wheel by a coaxial controlled coupling, the controlled coupling of which is connected to the handle and It is fitted with two coaxial pushers, one of which is connected to the housing through the coupling preload spring, and the other is connected to the movable element of the coaxial screw pair installed in the housing and equipped with the coupling opening control wheel and is coupled to the second end of the rough handle. U983Zfi_