RU2558772C1 - Liquid lubricant supply device - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: liquid lubricant supply device of the gearbox, having casing with oil bath, it is lubricant sprayer, made ion form of box with filling holes in its sides. The box is secured on one arm of the rocker installed on the hinge joint in the gearbox casing and equipped with spring and limiter of vertical movement. The second arm of the rocker periodically contacts with cam, secured on the drive shaft with possibility of forced box immersion in the bath. The box has top lid made in form of grid out of plates, their planes create the grid cells, and from outside the cells have contracting nozzles interfaced with plates, and perpendicular to the lid.

EFFECT: increased efficiency of the lubricant supply to friction parts of the gearbox.

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Description

The invention relates to mechanical engineering, in particular to machine parts, and can be used to lubricate closed gear reducers with oil baths, mainly low-speed, with large diameter wheels.

A device for supplying liquid lubricant is known, which is a sprinkler mounted on a drive shaft in the form of a wheel with blades immersed in an oil bath (see, for example, Dunaev P.F., Lelikov O.P. Designing machine components and parts: Textbook for mechanical engineering special universities. - 4th ed., revised and enlarged .-- M .: Higher school, 1985. - 416 p., p. 149).

The disadvantage of this device is the lack of efficiency in low-speed gears, especially with large diameters of the wheels, as well as with frequent interruptions in their work.

Closest to the invention is a device for supplying liquid lubricant according to the patent for the invention of the Russian Federation No. 2489624, Cl. F16H 57/00, published on 08/10/2013, Bull. Number 22. Its essence is that in the gearbox with an oil bath a sprinkler is installed, periodically immersed in the bath; the sprinkler is made in the form of a box without a top cover mounted on one shoulder of a spring-loaded rocker arm mounted pivotally inside the gearbox with the possibility of movement in the vertical plane, the second arm of the rocker arm is made with the possibility of periodic contact with the cam mounted on the drive shaft and immersion of the box in the bath, moreover, the walls of the box, oriented along the beam, are located vertically, and the walls, oriented perpendicular to the beam, are located along arcs described by hnimi edges of these walls, and the rocker arm is provided with its vertical limiter travel after exiting the top of the duct from the bath by a spring.

The disadvantage of the prototype is that the grease is ejected from the sprayer in a continuous mass, and to ensure lubrication of the gear units, this mass must be dispersed, in addition, the ejection of grease in one volume reduces the lift height of the ejected grease, which, when the gear case is high, will not provide effective lubrication of the gear units .

The invention solves the problem of increasing the efficiency of the lubricant supply to the friction elements of the gearbox.

For this, the device for supplying liquid gear lubricant, in the housing of which the oil bath is located, is a spring-loaded lubricant sprayer, made in the form of a box, in the walls of which there are filler holes mounted inside the gear housing with the possibility of moving periodically forcibly immersed into the oil bath in the vertical plane and having filler holes in its walls, and the box is equipped with a top cover made in the form of a lattice made up of plates, the plane of which They form lattice cells, and outside the box, the cells are equipped with tapering nozzles oriented perpendicular to the lattice.

The invention is illustrated by the drawing, which shows: a device for supplying liquid lubricant (side view) with the lower position of the sprayer (figure 1) and with the upper position of the sprayer (figure 2); and the cross section of the lid of the box (figure 3).

The drawing shows: gear housing 1, oil bath 2, sprayer (box) 3, filler holes 4, rocker 5, hinge 6, spring 7, travel stop 8, cam 9, drive shaft 10, box cover 11 (3), plate 12, cells 13 of the grill 11, nozzle 14; direction V of grease discharge from nozzles.

A device for supplying liquid lubricant to a gearbox 1 with an oil bath 2 is a lubricant sprinkler made in the form of a box 3 with filler holes 4 in its walls; the box is rigidly mounted on one shoulder of the rocker arm 5 mounted in the housing 1 on the hinge 6 with the possibility of movement in the vertical plane, the rocker arm is equipped with a spring 7; the upper position of the beam is set by the limiter of its movement (8); the second arm of the beam periodically interacts with the cam 9 mounted on the drive shaft 10; box 3 is provided with an upper cover 11 in the form of a lattice composed of plates 12, the planes of which form cells 13 of the lattice (lid) 11, nozzles 14 are located on the outer side of the lid and are connected in their lower part to the plates 12 of the lattice 11, and the upper part of which oriented perpendicular to the grid.

This device works as follows. The cam 9, mounted on the drive shaft 10, periodically interacts with one arm of the rocker arm 5, which rotates on the hinge 6, and the second arm of the rocker arm with the box 3 is immersed in the oil bath 2. Through the filler holes 4 in the walls of the box 3, grease from the oil bath 2 enters the box 3, filling it. With further rotation of the cam 9, the arm of the rocker arm 5 is released and the rocker arm, turning on the hinge 6 under the action of the spring 7, discards the box 3 mounted on its second shoulder with the grease accumulated upward until the rocker arm contacts the limiter of its movement 8. The grease collected by the box is ejected him through the nozzle 14 of the cover 11 on the lubricated elements of the gearbox (direction V).

Compared with the prototype, the proposed device design allows you to break the grease ejected from the box into separate fragments. The presence of nozzles in the cap allows you to add additional pressure to individual jets of grease. Thus, increase the height of the ejected grease and increase the volume of the lubricated volume of the gearbox.

Claims (1)

A device for supplying liquid lubricant, mainly a closed gear reducer with an oil bath, containing a spring-loaded lubricant sprayer in the form of a box mounted inside the gearbox with the ability to move in a vertical plane, periodically forcibly immersed in an oil bath and having filling holes in its walls, characterized in that that the box is equipped with a top cover made in the form of a lattice composed of plates, the planes of which form lattice cells, and outside the box The eggs are equipped with tapering nozzles oriented perpendicular to the lattice.

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