CN2118840U

CN2118840U - High pressure oil supply lubrication gear oil pump shaft sleeve

Info

Publication number: CN2118840U
Application number: CN 91229062
Authority: CN
Inventors: 王文
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-22
Filing date: 1991-11-22
Publication date: 1992-10-14

Abstract

The utility model belongs to the field of mechanical lubrication, is suitable for the hydraulic system of a heavy dump truck, lifting and transportation, and engineering machinery particularly, and is an improvement on the prior art. The utility model is characterized in that the inner hole of a shaft sleeve of the oil pump is a spiral oil groove, and is arranged at the force area; the oil inlet groove of the end face of the shaft sleeve is arranged at the oil outlet end of the oil pump, and the lubricating oil is supplied by high pressure. Thus abrasion of the force area of the inner hole of the shaft sleeve is reduced, the lubrication of the shaft sleeve is improved, and the service life of the oil pump is extended.

Description

High pressure oil supply lubrication gear oil pump shaft sleeve

The utility model relates to the mechanical lubrication field, is specially adapted to heavy duty dump truck, in the hydraulic system of lifting transportation and engineering machinery.

At present, the general endoporus of axle sleeve of homemade CB type aluminum hull gear oil pump is the straight line oil groove, and the axle sleeve end face does not have oil-feed tank, and the surface of contact of axle sleeve and gear contacts for accurate, and lubricant oil almost can not enter the axle sleeve endoporus; Though another kind of axle sleeve has the end face oil-feed tank, but be located at the oil inlet end of pump, be the normal pressure oil-feed,, and be located at the non-stress district though endoporus is the helical oil groove, axle sleeve endoporus stress area serious wear like this, oil pump axle sleeve oil groove can not satisfy axle and the requirement of shaft room to lubricating, and causes axle sleeve wearing and tearing too early, tile kilning or seize, impels the too fast increase in gap of gear and pump case, use oil pressure and significantly descend, oil pump failure is scrapped seriously.

The utility model has proposed the lubricated gear oil pump axle sleeve of a kind of high-pressure oil feed at the problem of above-mentioned existence, and it is to a kind of improvement of existing oil pump axle sleeve, and oil pump life is significantly improved.

The oil outlet that is characterised in that the oil groove design at pump of the present utility model is a high voltage supply lubricant oil, and the axle sleeve endoporus is the helical oil groove and is located at stressed district that lubricant oil is supplied with the zone at needs all the time.Axle sleeve end face and endoporus rubbing surface owing to high-tension lubrication forms the hydraulic pressure oil film, have alleviated the wearing and tearing of rubbing surface greatly.

Be described in detail below in conjunction with accompanying drawing

Fig. 1 is an aluminum hull gear oil pump structural drawing, and what Fig. 1 a represented is the sectional view of plan view along the Lower shaft sleeve upper-end surface;

Fig. 2 is the plan view of not improved oil pump bottom right axle sleeve, and what Fig. 2 a represented is the sectional view of Fig. 2 along transversal line;

Fig. 3 is the oil pump lower-left axle sleeve figure after improving, it is axle sleeve view in lower-left among Fig. 1, Fig. 3 a represents that along the sectional view of AA Section line Fig. 3 b represents that along the partial sectional view of B-B Section line axle sleeve end face oil-feed tank Fig. 3 c represents I position axle sleeve endoporus helical oil groove end face partial view.

1,2 is the last left and right axle sleeve of oil pump among Fig. 1, and 3,4 is bottom left, the right axle sleeve of oil pump, and axle sleeve is left and right symmetry.5 is oil inlet ends in Fig. 1 a, the 6th, oil outlet end, arrow represent gear rotation to, point to the pressure oil Way out of pump, oil pump gear is to begin engagement at oil outlet, withdraws from engagement at filler opening, concerning the axle of gear, locating to power is passed in axle sleeve with respect to about 180 ℃ of tooth mesh regional.

8 is the end face oil-feed tank among Fig. 2, is located at the oil inlet end of pump, and 7 is stressed district.

8 is the end face oil-feed tank among Fig. 3, is located at the oil outlet end of pump, and 7 is stressed district, and 9 are located at stressed district for the helical oil groove.

Axle sleeve after the improvement, oil supply system are the high pressure oil-feed, and lubricant oil is supplied with in stressed district, and like this, the wearing and tearing of axle sleeve endoporus stress area significantly reduce, thereby have thoroughly improved the lubricated of axle sleeve, can significantly improve the working life of oil pump.

Claims

A kind of aluminum hull gear oil pump axle sleeve is characterized in that:

A, axle sleeve end face oil-feed tank are located at the oil outlet of pump;

B, axle sleeve endoporus are the helical oil groove, and are located at stressed district;

C, be high-pressure oil feed to the lubricated of axle sleeve.