SU20967A1 - Hydraulic speed controller - Google Patents

Description

Hydraulic speed controllers are known, the clutches of which move under the influence of centrifugal forces acting on a rotating fluid. It is proposed in such regulators to make the walls of the rotating tank wavy in the axial direction, and its bottom, connected with the leads to the regulator coupling, be supplied with a cap. The latter is insulated from the outside by a cover of the casing and a cylinder wavy in the axial direction and can be separated from the rest of the space by means of a partition with openings.

In FIG. 1 shows a longitudinal section of the regulator; FIG. 2 - side view; FIG. 3 - view from above; FIG. 4-longitudinal section of the regulator with a spring placed inside it.

Inside the casing 4 (Fig. 1) is a closed tank, the walls of which form in the axial direction a wavy surface. The bottom 3 of the tank 8 is fastened with the help of leads 5 with the holder 6 connected to the clutch 7 of the regulator and provided with a cap. The reservoir 8 is filled with a mobile fluid that does not act chemically on the parts of the device that are in contact with it. In order that the fluid, when expanded from heat, could not deform the walls of the reservoir and thereby move the sleeve 7 in a quiescent state

the device, in the tank, you can leave some stock of empty space, as shown in FIG. 1, with air being pumped out of it. For the same purpose, air is evacuated from space 17 above. a cap of the bottom 3 formed by an axially wavy cylinder 2 and a cover 1 of the casing 4. The device is filled with liquid and air is pumped out of it through openings 9 and 10 with subsequent hermetically tight sealing, for example welding or sealing.

If the tank 8 is rotated in motion, for example using gear mounted on the shaft 11, the liquid under the action of centrifugal force disposes its free surface parabolic and laterally: it presses on the cap, which deforms the cylinder 2 and rearranges the clutch 7. Lifting adjustment the latter is made using a spring 2, the tension of which is changed by a nut 13. In order for the fluid in rotation not to lag behind the device, a diametrically located partition 14 is fastened inside the cap (Fig. 3).

Cylinder 2, when rotating with liquid, will tend to position its center of gravity in the center of rotation of the device, there will be no friction between moving parts and casing 4; the last circumstance will be

Cilin dre 2 transverse bending. Change

atmospheric pressure is perceived

.a housing 4 and does not render to work

the device has no effect.

The device can work in any position, and it is possible that it can be mounted on a horizontal shaft, as well as passing a through shaft through the device using an inserted flexible ribbed cylinder of a smaller diameter than cylinder 2.

The need for pumping air can be avoided if the elevated part of the cap is replaced by a partition 16 provided with air inlet 15 with a hole 15 (Fig. 1). Such a device will only work in an upright position, the liquid level in the latter case should be under Partition 16. Both the change in the atmospheric pressure and the change in air pressure inside the device from temperature changes are perceived by the housing 4 and the case is not reflected.

Depicted in FIG. 4, the controller is somewhat lzmenen, and the spring 12, regulating the rise of the coupling 7, is located on the shaft inside the device with a hundred, opposite to the clutch, that

it facilitates access to it and makes it possible to change the spring at will, put the device on the shaft transmitting the work passing through and in any position, and also inform the controller of much higher angular velocities, since the effect of centrifugal forces on the leashes 5 is considerably weakened by their approximation to the center of rotation.

The subject of the patent.

A hydraulic speed regulator, whose coupling moves under the influence of centrifugal forces acting on a rotating fluid, characterized in that the side walls of the rotating closed tank 8 are partial; but filled with liquid, they form an undulating surface in the axial direction, and the bottom 3, connected to the regulator coupling 7 with the help of leads 5, has a cap, which is insulated from the outside by a cover 1 and an axially wavy cylinder 2, which from the inside can be separated from the rest space with the help of a partition 16 with a hole 15, and a spring 12 acting on this clutch is installed to change the size of the coupling of the regulator coupling 7.

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