SU943475A1 - Device for monitoring lubricant feed - Google Patents

Description

(54) LUBRICATING CONTROL DEVICE

MATERIAL

one

The invention relates to controlling lubrication equipment and can be used in lubrication systems of process equipment and other machines and mechanisms, mainly pulsed, with differential type feeders.

A control device is known that contains a sensor, spring-loaded pores located in the cylindrical bore of the housing with inlet and outlet channels, and a check valve installed in the inlet in an additional channel connecting the inlet and outlet channels and mechanically connected to a compacted brush, the stroke of which is more stroke The working volume of the control device is equal to or greater than the difference between the working volume of the output cavity and the supply volume of the controlled pulse feeder 1.

When a dose of lubricant from a pulsed feeder passes through the device, a non-return valve opens and the associated rod acts on the sensor, which produces an electrical signal. After the end of the dose supply, the check valve immediately closes, the associated brush moves away from the sensor, and the signal stops. Since in the pulsed feeders the doses are small (0.01-1.25 cm), their passage time through the monitoring device is small and the electrical output signal is short-lived. Besides,

5 since in the pulse systems all the feeders do not work simultaneously for various reasons and the sequence of their operation is practically undetermined, the short-time signal complicates

10 — Visual observation (when a signal is received to light a lamp) and even more complicates the system control circuitry in the automation of control. In the latter case, special electronic devices are added to commemorate the signal.

The aim of the invention is to increase

amenities of operation by increasing

device output signal duration

The goal is achieved by the fact that

20, the exiting element of the stem is provided with a gland that interacts with the spring, and the connection of the check valve with the stem is made with a gap with the possibility of axial movement between them relative to each other.

Claims (1)

Claim A lubricant supply control device, mainly for lubricating systems with differential-type pulse feeders, comprising a sensor, spring-loaded piston located in the cylindrical bore of the housing with supply and exhaust channels, and a check valve installed in the piston in an additional channel connecting the supply and removal channels, and mechanically connected with a sealed rod, the stroke of which is greater than the stroke of the piston, and the working volume of the control device is equal to or greater than the difference between the working volume of the output cavity and the volume the feed of the controlled pulse feeder, characterized in that, in order to improve operating convenience by increasing the output signal of the device, the stem sealing element is equipped with a pressure stop interacting with the spring, and the check valve is connected to the stem with a gap with the possibility of axial movement relative to each other, and the gap value is greater than or equal to the valve stroke upon actuation, but less than the piston stroke.