RU46826U1 - DEVICE FOR SUBMITTING LIQUID GREASE TO ASSEMBLIES AND TRANSMISSION PARTS - Google Patents

Abstract

The proposed utility model relates to mechanical engineering and can be used to supply liquid lubricant to the components and parts of gears (mainly in engagement of the spyroid gear with the upper position of the worm). The technical task of the proposed utility model is the creation of a device that allows the uninterrupted supply of lubricating oil to the engagement of the spyroid gear, which has a simple and reliable design. A device for supplying liquid lubricant to the nodes and parts of the gears includes a lubricating element in the form of a steel rim mounted on a spiroid wheel with blind holes made. For a more complete use of scooped oil, they are inclined at an acute angle to the rim generatrix.

Description

The proposed utility model relates to mechanical engineering and can be used to supply liquid lubricant to the components and parts of a spyroid gear, mainly in circuits with an upper arrangement of the worm, in order to reliably separate the transmission elements with lubricating oil and increase the efficiency in gear engagement.

A device for supplying liquid lubricant to the nodes and parts of transmissions (see ed. Certificate No. 1409808, IPC F 16 H 57/04), comprising a housing with an oil bath, a cam located on the drive shaft, and an interacting lubricant supplying element comprising a plate provided with a lever, one end pivotally mounted in the housing, and the other end kinematically connected to the cam, and containing a plate mounted on the lever.

This device is difficult both at the assembly stage of the assembly and during the repair process, which is why its use is limited for most types of drives.

A device for supplying liquid lubricant is known (see ed. Certificate No. 1421935, IPC F 16 H 57/04), comprising an elastic plate designed to be placed in the oil bath of the gearbox on one of its elements and an impact element intended to be placed on the other gearbox element on the elastic plate, while the elastic plate is designed to be placed on a rotating element of the gearbox, and the impact element on the elastic plate is made in the form of a stop designed to be placed on the gearbox housing.

However, due to the fact that the known device has unsatisfactory overall dimensions in the direction of the axis of the gear, in addition, an uninterrupted supply of oil to the engagement area of the spiroid gear is not ensured, its use is limited for most types of drives,

used in various fields of technology, for example, in lifting and transport engineering.

The technical task of the proposed utility model is the creation of a device that allows the uninterrupted supply of lubricating oil to the engagement of the spyroid gear, which is simple and reliable.

The problem is achieved in that in the device for supplying lubricant containing an oil bath and a feeding element, the latter is made in the form of a rim mounted on a spyroid wheel, with uniformly inclined blind holes made at an acute angle to its generatrix.

The presence of a rim with blind holes creates the opportunity for an enriched supply of lubricating oil into the engagement of the spyroid gear (mainly for circuits with an upper arrangement of the worm). At the same time, the oil supply intensity is automatically adjusted depending on the high-speed mode of transmission operation, since its amount supplied to the engagement zone is directly dependent on the speed of rotation of the spiroid wheel. So with an increase in the rotational speed of the worm, the rotational speed of the wheel increases, and, consequently, the supply of lubricating oil to the mesh also increases, providing a reliable separation of the friction surfaces of the transmission links.

The essence of the technical solution is illustrated by drawings, where in Fig.1 shows a spyroid gearbox with the top location of the worm; figure 2 is a section along aa.

A device for supplying liquid lubricant contains a housing 1 with an oil bath 2 and a lubricating steel rim 3 (Fig. 1), mounted on a spiroid wheel 4, in which, on the side of the gear ring 5 of the wheel, blind holes 6 are made uniformly spaced around the circumference of the rim 3 and inclined at an acute angle to its generatrix (figure 2).

The experimentally obtained angle α = 15 ° ... 40 ° of the inclination of the holes 6 to the generatrix of the rim 3 of the spiroid wheel 4 (figure 2) made it possible to provide

a sufficient supply of portions of liquid lubricant to the engagement zone, reliably separating the friction surfaces of the transmission links.

The depth of the holes h _i selected taking into account the maximum use of the width of the rim 3 of the spiroid wheel 4 and is determined from the condition:

_hi = (0.8 ... 0.9) bcosα,

where b is the width of the rim of the spiroid wheel.

The number n _of holes 6 in order to ensure an uninterrupted supply of oil through the entire length of the engagement zone is taken equal to the value determined from the condition:

where d _e2 is the outer diameter of the teeth of the spiroid wheel; x is the height of the rim 3; b ₁ - the length of the chopped part of the worm.

A device for supplying liquid lubricant operates as follows. When the spiroid wheel 4 is rotated, the rim 3 fixed on its circular surface is dipped in lubricating oil 2, the blind holes 6 are filled with grease and deliver it to the gear engagement zone. The experimentally obtained angle of inclination of the holes 6 to the generatrix of the rim 3 of the spiroid wheel 4 ensures that the oil flows out completely when the teeth of the wheel 4 exit the engagement zone without reducing the main purpose of the spyroid gear.

Claims (1)

A device for supplying liquid lubricant to the components and parts of the gears, containing an oil bath and a lubricant supplying element, characterized in that the supplying element is a rim fixed to a spyroid wheel with blind holes made at an acute angle to its generatrix.