SU1237865A1 - Feeder for two-line multicell lubrication system - Google Patents

Description

The invention relates to lubricant feeders and can be used in two-line lubrication systems for machine tools, forging equipment, automatic lines and other machines and mechanisms.

The purpose of the invention is to increase the number of serviced lubrication points by creating an intermediate additional distribution element on the basis of the (distribution) valve spool.

The drawing shows schematically a feeder of a two-line multi-point lubrication system.

The feeder of the two-line lubrication system consists of a housing 1 in which a distribution spool 2 is installed with the formation of end cavities 3 and 4, an intermediate distribution element 5 with the formation of end cavities 6 and 7, and a dosage piston 8 with the formation of end cavities 9 and 10. On the metering piston 8, the same symmetrical grooves 11 and 12 are made, which are connected to the corresponding cavities 9 and 10 by means of channels 13 and 14. On the intermediate distribution element 5, the grooves 15 are made symmetrically relative to the center, The number of which is 1/2 lubrication points, and the step between the grooves 15 is equal to the width of the grooves 11 and 12 on the metering pressure 8. In addition, the same intermediate symmetric grooves 16 and 17 are made on the intermediate distribution element 5, connected to the corresponding cavities 6 and 7 by channels 18 and 19. Grooves 20 are made symmetrically relative to the center of the distribution spool 2, the number of which is equal to 1/2 lubrication points, and the step between the grooves 20 is equal to the width of the groove 16 and 17 on the intermediate distribution element 5. In case 1, p Eversive channels 21 and 22 for communication of the end cavities 3 and 4 of spool 2 with a lubricant source, as well as autonomous channels 23 and 24 of control for communication of the end cavities 3 and 4 of spool 2 with the corresponding end cavities 6 and 7 of the intermediate distribution element 5 and autonomous control channels 25 and 26 for communicating the end cavities 6 and 7 of the intermediate element 5 with the corresponding cavities 9 and 10 of the metering piston 8. In the housing 1 there are two groups of symmetrically arranged additional channels 27 and 28 supplying lubricant from intermediate element 5 to spool 2, the spacing between the supply channels in the group is equal to the width of the grooves 16 and 17 on the intermediate element 4, as well as two groups of symmetrically arranged channels 29 and 30 supplying lubricant from the metering piston 8 to the intermediate element 5, spacing between the supply channels in the group is equal to the width of the groove 11 and 12 of the piston 8.

The groups of channels 27 and 28 for the supply of lubricant are connected by the corresponding grooves 16 and 17 and the channels 18 and 19 with cavities 6 and 7 of the intermediate element 5. The groups of the channels 29 and 30 for the supply are connected by the corresponding grooves 11 and 12 and channels 13 and 14 with cavities 9 and 10 of the metering chamber 8. To the lubrication points from the intermediate element 5 in the housing 1, two groups of additional output channels 31 are made

 and 32, each of which, through the grooves 15 on the intermediate element 5, is associated with a corresponding group of channels 29 and 30 for supplying lubricant. Also, to the other lubrication points from the distribution gold 5 in case 1, two groups of output channels 33 and 34 are made, each of which is connected with the corresponding group of additional channels 27 and 28 of the lubricant outlets by means of grooves 20 on the spool 8. Dual line multipoint feeder

0 lubrication system works as follows.

Consider the operation of the feeder, when in the system the reversing channel 21 is connected to the lubricant supply, and the channel 22 - with return to

5 bucks The lubricant coming through the channel 21 creates pressure in the end cavity 3 and moves the distribution valve 2 to the right against the stop into the housing 1. From the end cavity 4 the lubricant returns through the channel 22 to the tank. At the beginning of its movement, the distribution spool 2 cuts off the autonomous control channel 24 from the end cavity 4 and interrupts the communication of additional supply channels 27 with output channels 33. At the end of its movement, the spool 2 opens the autonomous control channel 23,

5 and, with its grooves 20, connects the additional supply channel 28 to the output channels 34. Through the open independent control channel 23 from the cavity 3, the lubricant enters the cavity 6 of the intermediate element 5 and it begins to move to the right. At the beginning of its movement, the intermediate element 5 cuts off the autonomous control channel 26 from the end cavity 7 and interrupts the communication of the supply channels 29 with additional output channels 315. When moving, the intermediate element 5 displaces lubricant from the cavity 7 through the channel 19 and the bore 17 alternately into the additional channels 28 supply, through which the lubricant enters the spool 2, and from it along the grooves 20 - into the output channels 34 to the lubrication points. At the end of its stroke all the way into the casing, the intermediate element 5 opens the autonomous control channel 25, and connects the supply channels 30 with additional output channels 32 with their grooves 15.

5 Through the open autonomous control channel 25 from the cavity 6, the lubricant enters the cavity 9 of the metering piston 8. The piston 8 begins to move to the right and displaces

0

the lubricant from the cavity 10 through the channel 14 and the groove 12 alternately into the channels 30 for supplying the lubricant to the intermediate element 5, and from it through the grooves 15 to the additional output channels 32 to the lubrication points. At the end of its stroke, when the piston 8 stops in the housing 1, the piston 8 stops and its indicator signals the actuation of the feeder to the first half of the lubrication points. When applying lubricant from the source through channel 22 and connecting channel 21 to the return

first into the tank, the distribution valve 2, then the distribution element 5, and after it the metering piston 8 are mixed to the extreme left positions. The work of driving the lubricant into the outlets 33 and 31 is repeated in a similar way. At the end of the stroke of the piston 8 to the left position, its indicator signals the actuation of the feeder to the second half of the lubrication points. This is the end of the lubrication cycle.

Claims (1)

FEEDER OF A TWO-LINE MULTI-POINT LUBRICATION SYSTEM, comprising a housing with a metering piston installed in it with symmetrical grooves and a distribution spool with symmetrical grooves, wherein the housing has reversible channels, autonomous control channels, supply channels and output channels, and in the piston there are channels connecting its grooves with end cavities with the ability to connect when the spool moves to one of the extreme positions of the opposite reversing channel through the end cavity of the spool and autonomous control channel with an end cavity of the dosing piston and an opposite end cavity of the dosing piston through the supply and grooves of the spool with output channels, characterized in that, in order to increase the number of serviced lubrication points, the feeder is equipped with an intermediate distribution element on which symmetrical grooves and grooves are made connected to its end cavities, additional supply channels are made in the housing with the possibility of connection when the spool moves to one of the extreme positions Glasses of the intermediate member with the grooves of the spool and additional output channels to be connected to them through a groove of the intermediate member with the supply channels, with Mechanical cavity intermediate member connected to the autonomous control channels. SU, „, 1237865