SU877213A1 - Apparatus for automatic feeding of grease - Google Patents

Description

I

The invention relates to mechanical engineering and can be used in automatic equipment for machining parts and assembling assemblies, where it is required to deliver grease to wear through pressure gauges. surfaces or fill the cavities of the assemblies with grease.

Lime automatic pneumatic-driven grease station containing a container with a lid, a plunger for supplying lubricant and a coaxial cylinder with it, which actuates the plunger 14

Also known capacity for supplying grease, made in the form of a cylinder, divided into two cavities by a piston with a rod - on the cavity with lubrication and the cavity connected to a source of compressed air (2.

Closest to that proposed by the technical essence is a lubricant supply device containing a container provided with a piston with a rod separating the container into piston and rod cavities, an opening for dispensing lubricant and power cy-. lindre (3.

A disadvantage of the known devices lies in the heterogeneity of the lubricant supplied due to the presence of air bubbles in the container, which cause an idle dispensing charge, i.e. air supply instead of lubrication. To reduce

However, it is necessary to dilute the lubricant, heat it up before filling it into a container, or fill it up with special filling devices, which complicates the operation of the system.

The purpose of the invention is to improve the quality

to lubricate uniformity by separating the air contained in the loaded s (lazka.

The goal is achieved by the fact that the piston is installed with the possibility of passing grease from the piston cavity into the rod check valve, and

15 for dispensing lubricant is made in the rod cavity of the container.

The technical essence of the invention is illustrated in the drawing, which shows a longitudinal section of the device.

The device consists of a stand 1, on

which are mounted the power cylinder 2 (pneumatic or hydraulic) and the capacity 3 for lubrication, which is divided

piston 4 into two cavities: the upper (loading) porous and lower (working) rod. The piston 5 of the power cylinder and the piston 4 of the tank are mounted coaxially on the same rod 6. The capacity and the power cylinder are connected by a flange 7.

The piston 4 of the tank is equipped with a system of check valves 8 located around the circumference. The container has a cover 9 with a sealing gasket 10 and a check valve 11, indicating the charging cavity with the atmosphere. On the cover there is a folding clamp 12, which secures the clamp of the cover with the help of the nut 13.

The flange 7 is equipped with a fitting 14 for supplying compressed air (or pressurized oil) to the power cylinder and a fitting 15 with a check valve 16 for supplying lubricant from the working cavity of the container to the metering units. A pusher 17 is mounted on the bottom cover with a flag 18 entering the groove of the contactless limit switch 19.

In addition, in the lower cover there is a fitting 20 for supplying compressed air (or oil) to the lower cavity of the power cylinder.

The device works as follows

The tank is initially charged with lubricant. When compressed air is supplied from the network through fitting 14 into the upper cavity of the power cylinder, its piston 5 moves downwards. The piston 4 goes to the lower position. Then, through the open lid 9, the loading cavity of the tank (above the piston 4) is filled with type 1 grease - 13 GOST 1631-61, grease CS US GZUZZ-51, etc .. If this is a lubricant not heating (which requires additional equipment for heating and increases the complexity of maintenance), then together with the lubricant air enters the container in the form of bubbles, which can then flow into the dispensers instead of lubricant.

After filling the tank, the lid 9 is closed, clamped with its claw 12 and turn on the supply of compressed air into the lower cavity of the power cylinder through the nozzle 20.

The pistons 4 and 5 go up, the grease is squeezed through the check valves 8 from the loading cavity (above the piston 4) into the working cavity (under the piston). In this case, the lubricant acquires a uniform structure, mixes, and air bubbles are removed from it.

In the upper position, the piston 4 stops, all the lubrication is under the piston, the charge ends there.

Further, the device can operate in the mode of automatic supply of lubricant to the dispensers. For this, it is necessary to turn on a constant supply of compressed air into the upper cavity of the power cylinder 2. The piston 4 moves downward, and the lubricant located below it is forced under pressure through the check valve 16 to the metering devices of the system. When this valve 8 in the piston 4 is closed. As lubrication is consumed, the piston gradually descends.

Through the check valve 11, air from the atmosphere is sucked into the loading cavity of the container, which prevents the creation of a discharge in the cavity. The cover 9 when the device is operating is unloaded from the constant pressure of the lubricant.

After a certain time required to dispense all the grease, the drifts descend to the lowest position and the rod 6 presses the pusher 17, which with its flag 18 acts on the non-contact limit switch 19 and the control system is signaled that there is no lubricant in the container. charge

The use of the invention improves the quality and reliability of the lubricant supply to the dispensers, as it eliminates the "idle dispensing of dispensers, eliminates air bubbles found in the loaded grease and, thereby, improves the quality of the assembled products and the reliability of the lubricated parts.

Claims (2)

Invention Formula An automatic grease supply device comprising a container equipped with a piston with a rod dividing the container into piston and rod cavities, an opening for dispensing lubricant and a ram cylinder characterized in that. that, in order to improve the quality of the lubricant supplied by homogeneity by separating air, the piston is installed with the possibility of passing lubricant from the piston cavity to the rod check valve, and the opening for issuing lubricant is made in the rod cavity of the container. Sources of information taken into account in the examination of 1 USSR Author's Certificate No. 104749, cl. F 16 N 11/00, 1956, 2. USSR Author's Certificate No. 688759, class, F 16 N 19/00. 1979 3, USSR Author's Certificate JVfe 658352, class, F 16 N 7/30, 1979.