SU1203326A1 - Multi-volute lubrication pump - Google Patents

Description

Rick shaft 14. Liquid suction

The invention relates to lubricating devices and can be used to supply a lubricant under pressure to several friction units of machines, presses and other machines.

The purpose of the invention is to reduce the loss of lubricant from the discharge channels to the suction, which occur along the distribution element.

The elimination of leaks increases the rate of lubricant supply to the taps and is achieved by the constructive implementation of the distribution element without the need for a mobile installation of the distribution sleeve in the housing.

1 shows a lubricating multi-tap pump, a general view; figure 2 is a view of And figure 1; on fig.Z - section bb in figure 2; figure 4 is a section in figure 2; figure 5 is a section of GG in figure 2; 6 is a hydraulic circuit of the pump.

The multi-tap pump contains a pressure piston 1, which is located in a fixed sleeve 2, installed tightly in the housing 3. In the discharge chamber 4 of the pistons 1, a check valve 5 is mixed. with the chamber 4 and in which the distribution elements in the form of double-acting plungers 8 with control circuits 9 and grooves 10 are placed. Each of the plungers 8 forms, with the ends, working chambers 11 in the bores 6. At the same time, the latter are connected - Tel'nykh two auxiliary channels 12, and the working chambers 11 are provided with outlet channels 13 which are associated with the consumer.

The pump is driven by an eccentric

five

0 5

through hole 15.

Lubricating multi-tap pump operates as follows.

The rotating eccentric shaft 14 drives the injection piston 1, which sucks the oil through the hole 15 and pumps it through the non-return valve 5 into the chamber 4, from which the oil through the radial channels 7 simultaneously flows to three bores 6 and the grooves 10 formed by control valves. 9 plungers 8. From the bore 10 of the right plunger 8 (6) the oil through the channel 12 on the sleeve 2 enters the lower working chamber 11 of the upper plunger. From the upper working chamber 11 of the same plunger 8 oil through the second channel 12, the second groove 0 of the right plunger passes through the output channel 13 a portion of oil to the consumer.

From the grooves 10 of the left plunger 8 oil through the channel 12, also made on the outer surface of the sleeve 2, enters the left working chamber 11 of the right plunger 8. From the right working chamber 11 of the same plunger, oil returns through the channel 12 to the other groove 10 of the left plunger 8 and through channel 13 the oil goes to the next consumer.

In a similar sequence, the oil from the groove. 10 of the upper third plunger 8 through the channel 12 enters under the left end 11 of the left plunger 8, moves it to the right, giving a batch of lubricant from the right working chamber 11 through another channel 12, another bore 10 of the upper plunger 8 to the channel 13 consumer

Thus, the lubricant-to-outlet distribution element is terminated. It is performed successively by three plungers.

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Compiled by V. Grishkov

Editor M. BlanarTehred I. VeresKorrektor S. Cherni

Order 8403/42 Circulation 645Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

LUBRICANT MULTI-DRAIN PUMP containing a pressure piston with a drive installed in the housing with the formation of the pressure chamber, a distribution element in the form of a sleeve axially arranged to the pressure piston with channels on the outer surface, forming a line with channels in the body, sequentially switching the pressure chamber with outlets, characterized in that that, in order to reduce lubricant losses, the distribution element is equipped with at least three sequential action plungers, the sleeve is not installed in the housing odvizhno, a pressure piston disposed in the sleeve, wherein the sequential action of a plunger fitted in the channels on the line body, switching the pump chamber with taps. Figure 1