RU2499948C1 - Greaser (versions) - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: greaser contains a tank in which located are a piston, a stock, a plunger pump with a drive, non-return valve and pipelines. There is a lid on the tank. Between the piston and the lid there installed is at least one compression spring. Additional non-return valve is installed in a hole of the upper part of stock. Plunger pump drive may be based on electromagnet fixed on the pump and connected to control unit. As a pump also a gear wheel pump or vane pump driven by electric motor may be used.

EFFECT: improving operation reliability and efficiency, simplifying the design.

2 cl, 2 dwg

Description

The invention relates to devices for lubricating friction surfaces, including for lubricating wheel flanges and rolling stock rails.

The prior art device for lubricating the crests of the bandages of rail carriages containing lubricating heads mounted directly at the ridges and driven by compressed air entering the line through a pipeline with a valve connected to the reservoir with lubrication, the valve is controlled by a pulse sensor that controls the conditions of interaction of the ridges with a rail, when a signal is received from the sensor, the valve connects to the reservoir a pipeline with compressed air, which enters the plunger installed under the cut the boulevard, and drives the plunger rod, while the lubricant under pressure enters the lubricant heads through the pipeline;

at the same time, compressed air enters the pipeline, with the help of which a lubricant in the form of a fine suspension is sprayed onto the ridges of the bandages; when the air pressure in the pipeline drops to a predetermined level, a 3-way valve is activated, air from the pipeline is discharged into the atmosphere, the plunger rod is returned to its original position by means of a spring. (DE, patent No. 1405687, CL BK 3/02, publ. 1997). The disadvantages of the device are:

there is no possibility of using grease with increased antifriction properties in the device, since the lubricant from the reservoir enters the plunger by gravity and only at the outlet does the plunger pump create the necessary pressure, which reduces the technical capabilities of the device;

- the use of a plunger pump in the device for operation and spraying of grease onto the lubricated surface by means of compressed air under conditions of temperature fluctuations ranging from -10 to + 10 ° С and above creates unstable operation of the device, in addition, it complicates the control circuit, which reduces the reliability of operation and complicates device design.

A device for supplying lubricant is indicated in a device for applying lubricant to the wheels of a railway vehicle, adopted as a prototype, comprising a lubricant reservoir, a plunger type pump, a pipeline leading to the pump, a lubricating element, a pump discharge port through a non-return valve connected to the lubricating pipeline element and is equipped with a crank-slide mechanism, the crank of which is connected with the plunger of the pump, lubricating elements are mounted on unsprung parts of the rail an off-road vehicle with the possibility of their rotation and extension in holders (RU, patent for invention No. 2139804, class B61K 3/02, publ. 1999).

The disadvantages of the device are:

- the presence of a gearbox with gears for pump drive mounted on the axle boxes of the vehicle, complicates the design of the device and reduces the reliability of its operation;

since the device is made with a rigid connection between the pump and the drive of the vehicle, the process of changing the volume of lubricant supply, for example, when changing the axial load on the wheelset, is complicated, which reduces the efficiency of the device.

The technical result of the invention is to increase the reliability and efficiency of the device and simplify the design.

The specified technical result is achieved by the fact that in the lubricant supply device comprising a lubricant reservoir with a piston, a stem and a cap fixed to the reservoir with at least one compression spring installed between the piston and the cap, a lubricant supply control unit is at least one plunger a lubricant pump with a drive, a check valve and pipelines, the piston rod of the lubricant reservoir is equipped with an additional check valve installed in the hole of the upper part of the rod, the plunger pump drive is made about an electromagnet fixed to the plunger pump for supplying lubricant and the associated lubricant supply control unit; in the second embodiment, in a lubricant supply device comprising a lubricant reservoir with a piston, a stem and a cap fixed to the reservoir with at least one compression spring installed between the piston and the cap, a lubricant control unit, at least one lubricant supply pump with the actuator associated with the lubricant control unit and pipelines, the piston rod of the lubricant reservoir is equipped with a check valve installed in the hole of the upper part of the stem, a gear or blade is used as a lubricant pump pump driven by an electric motor.

Figure 1 presents a section of the device along the longitudinal axis of the reservoir with a plunger pump for the supply of lubricant driven by an electromagnet; figure 2 is a second variant of the device with a gear or vane pump for the supply of lubricant driven by an electric motor.

The lubricant supply device (Fig. 1) comprises a lubricant reservoir 1 with a piston 3, a stem 4 and a cover 5 fixed to the reservoir 1, with at least one compression spring 6 installed between the piston 3 and the cover 5, a supply control unit 7 lubricant 2, at least one plunger pump 8 for supplying lubricant with a plunger 9, a check valve 10 and pipelines 11, the piston rod 4 of the reservoir 3 for the lubricant 2 is equipped with an additional check valve 12 installed in the hole 13 of the upper part of the rod 4, the plunger drive 9 plunger pump 8 is made from electromagnet that mounted on the plunger pump 8 for supplying lubricant 2; for an increased supply volume of lubricant 2 in the second embodiment (FIG. 2), the lubricant supply device comprises a lubricant reservoir 1 with a piston 3, a stem 4 and a cover 5 fixed to the reservoir 1 with at least one compression spring 6 installed between the piston 3 and cover 5, control unit 7 for supplying lubricant 2, at least one pump 15 for supplying lubricant 2 with actuator 16, connected to control unit 7 for supplying lubricant 2 and pipelines 11, piston rod 4 of reservoir 3 for lubricant 2 is equipped with a check valve 12 installed in the hole 13 of the upper part of the rod 4, in p The reservoir 1, as the pump 15 for supplying lubricant 2, a gear or vane pump is used, and the drive is made from an electric motor 16.

A device for supplying lubricant operates as follows. From a mechanical or manual pump, the fitting of which is installed in the hole of the additional valve 12, fixed in the upper part of the stem 4, the reservoir 1 is filled with grease 2 to a level controlled by the position of the stem end 4. Depending on the operating mode of the vehicle, the control unit 7 is set to the most efficient lubricant supply cycle 2 with its optimal flow rate. Lubrication 2 from the reservoir 1 under the pressure generated by the spring 6 is supplied by moving the plunger 9 by k from the electromagnet 14 to the plunger pump 8 or to the gear or vane pumps 15 (figure 2) driven by an electric motor 16, which supply lubricant with a given volume 2 into the pipelines 11, then the lubricant enters the device for applying lubricant to the lubricated surface. The presence of an additional valve 12, installed in the hole 13 of the upper part of the stem 4, allows the mechanization of the process of filling the reservoir 1 with lubricant 2, and the use of a plunger pump 8 driven by an electromagnet 14 (Fig. 1), as well as a gear or vane pump, in a lubrication device 15 driven by an electric motor 16 (figure 2) increases the reliability and efficiency of the device.

Claims (2)

1. A lubricant supply device comprising a lubricant reservoir with a piston, a stem and a cap fixed to the reservoir with at least one compression spring installed between the piston and the cap, a lubricant control unit, at least one plunger pump for lubricating the actuator , non-return valve and pipelines, characterized in that the piston rod of the lubricant reservoir is equipped with an additional non-return valve installed in the hole of the upper part of the rod, the plunger pump drive is made from an electromagnet, fixed on a plunger pump for lubrication and associated with the lubrication control unit. 2. A lubricant supply device comprising a lubricant reservoir with a piston, a stem and a cap fixed to the reservoir with at least one compression spring mounted between the piston and the cap, a lubricant control unit, at least one lubricant supply pump with a drive, connected to the lubricant control unit and pipelines, the piston rod of the lubricant reservoir is equipped with a check valve installed in the hole of the upper part of the rod, characterized in that a gear or paddle is used as a lubricant pump electric motor driven pump.

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