SU1335941A1 - Flow governor - Google Patents

Abstract

This invention relates to automatic regulation and can be used in the systems of hydropneumatic automation of machine tools, manipulators and robots. The purpose of the invention is to expand the functionality of the flow controller. The regulator includes a housing with inlet 2 and outlet 3 channels, a sleeve 4, a spool 5 with a spring 6, a main 7 and an additional 8 stops, a cover 9, a handle 11 connected with a cover by a threaded connection, and one of the stops nut 13, fixed position of the handle and stops. The flow rate of the fluid through the regulator in the forward and reverse directions is determined by the position of the lugs 7 and 8 and is controlled by rotating these lugs and the handle. The possibility of such adjustment is ensured by the fact that the crankshaft, the stops and the handle are connected by threads of the same pitch and direction with successively decreasing diameters. 1 hp f-ly, 2 ill. "About fS (L / e with so JV with 4 / g

Description

The invention relates to the field of automatic control and can be used in the systems of hydropneumatic automation of machine tools, manipulators and robots.

The purpose of the invention is to expand the functionality of the flow controller.

FIG. 1 shows a regulator with a central location of the main stop, a section; in fig. 2 - a regulator with a central location of additional ugur, a slit.

The flow regulator includes a housing 1 with an input 2 and an output 3 channels, a sleeve 4, a spool 5 with a spring 6, the base case of a reverse movement of fluid, its pressure and spring force the spool moves towards the input channel until the stop ring 18 stops in the barrel 19 of the main stop 7.

However, depending on the position of the anvil 7, the degree of closure of the choke holes in the sleeve 4 by the spool (up to a complete closure, as shown in Fig. 1) varies.

10 Adjustment of the flow rate in the forward direction is carried out by rotation of the stop 8 relative to the handle, and in the opposite direction by rotation of the stop 7 with the handle relative to the held on

Noah 7 and an additional 8 stops, the roof is a place of an stop 8, and

9 at the end of the hole 10 made in the housing, in which the sleeve 4 is installed with the valve 5 placed in it, the handle 11 connected by a pin 12 to one of the stops (in Figures 1 and 2 - with the main stop 7) with a backlash in connection , 20 allowing for some displacement of the handle along the axis of the stop, an element for fixing the handle, made in the form of a nut 13, mounted on a centrally located support 7 (Fig. 1) or 8 (Fig. 2) with the ability to interact with the end face of the handle 11 Additional stop 8 is made with a ring 14 (Fig. 1) or slotted 15 (Fig. 2) for adjusting the position of this stop relative to the handle 11. In the sleeve 4 there are hole - shaped openings 16 (shown in Fig. 1), and on the spool 5 there is a groove 17, in which a stop ring 18 is installed, in contact with the shoulder 19 of the main stop 7. The output channel 3 is connected, for example, through the gaps between the sleeve, the housing and the lid with the spool cavity 20. The sleeve 4 is not an essential element, since the spool can be placed directly in the housing bore with its corresponding design.

The flow controller works as follows. The fluid entering through the inlet channel 2 acts on the spool 5, moving it against the force of the spring 6. At the same time, the throttle holes in the sleeve 4 are opened, ensuring free passage of fluid into the outlet channel.

in the direct direction, there can be no less flow when the fluid is moving in reverse. The stops 7 and 8 and the handle 11 are fixed by "pressing the handle 1 with the nut 13.

Claims (2)

1. The flow regulator, comprising a housing with inlet and outlet channels, a spring-loaded spool housed in the housing, a lid, a main stop mounted to cooperate with the spool when the spool moves in the direction of the spring force, the handle and the handle fixing element relative to the lid, differing the fact that, in order to expand the functionality, the controller contains an additional stop mounted with the ability to interact with the spool when moving the spool against the spring force, eat one -e of the stops is located centrally along the axis of the spool, the handle, the lid and both stops are connected by threads of the same pitch and direction with successively decreasing diameters, and the handle is also connected to one of the stops with clearance in connection along the stop axis. 2. The regulator according to claim 1, characterized in that the element for fixing the handle is made in the form of a nut installed with a gun. interaction with the end of the handle on one of the stops centrally located along the axis of the spool. In the case of a reverse movement of the fluid, by its pressure and spring force, the spool moves towards the inlet channel up to the stop of the closure ring 18 in the bead 19 of the main stop 7. However, depending on the position of the anvil 7, the degree of closure of the choke holes in the sleeve 4 by the spool (up to a complete closure, as shown in Fig. 1) varies. The flow rate adjustment in the forward direction is carried out by rotating the support 8 relative to the handle, and in the opposite direction by rotating the support 7 with the handle relative to the hold on place of an emphasis 8, and the consumption of liquid in  place of an emphasis 8, and the consumption of liquid in in the direct direction, there can be no less flow when the fluid is moving in reverse. The stops 7 and 8 and the handle 11 are fixed by "pressing the handle 1 with the nut 13. Invention Formula 1. The flow regulator, comprising a housing with inlet and outlet channels, a spring-loaded spool housed in the housing, a lid, a main stop mounted to cooperate with the spool when the spool moves in the direction of the spring force, the handle and the handle fixing element relative to the lid, differing the fact that, in order to expand the functionality, the controller contains an additional stop mounted with the ability to interact with the spool when moving the spool against the spring force, eat one  the stops are located centrally along the axis of the spool, the handle, the lid and both stops are connected by threads of the same pitch and direction with successively decreasing diameters, and the handle is also connected to one of the stops with play in connection with the stop axis. 2. The regulator according to claim 1, characterized in that the element for fixing the handle is made in the form of a nut installed with a gun. interaction with the end of the handle on one of the stops centrally located along the axis of the spool. / J CPU g. 2.