CN203477105U

CN203477105U - Bearing assembly capable of dissipating heat

Info

Publication number: CN203477105U
Application number: CN201320592999.4U
Authority: CN
Inventors: 蔡朋飞
Original assignee: CHANGSHA SANCHANG PUMPS CO LTD
Current assignee: CHANGSHA SANCHANG PUMPS CO LTD
Priority date: 2013-09-25
Filing date: 2013-09-25
Publication date: 2014-03-12
Anticipated expiration: 2023-09-25

Abstract

The utility model discloses a bearing assembly capable of dissipating heat. The bearing assembly comprises a ventilation plug, an end cover, a bearing seat, a bearing pressure cover, a bearing, a shaft, a plug and an oil seal, wherein the bearing seat is fixed on a working table; both the bearing pressure cover and the end cover are fixed on the bearing seat and form a bearing chamber together with the bearing seat; the bearing is pressed by the bearing pressure cover in the bearing chamber; the shaft penetrates through a central through hole in the bearing pressure cover to be connected with the bearing in the bearing chamber in a matched way; the oil seal is arranged in a central hole of the bearing pressure cover; a grease discharging hole leading to the bearing chamber is formed in the lower part of the end cover; the plug is arranged in the grease discharging hole; a through hole leading to the bearing chamber is formed in the top of the bearing seat; the ventilation plug is arranged in the through hole. According to the bearing assembly, the ventilation plug is arranged at the top of the bearing seat, so that hot air in the bearing chamber can be discharged through a ventilation hole of the ventilation plug, the pressures inside and outside the bearing chamber are the same, the friction between the oil seal and the shaft and the temperature in the bearing chamber are reduced, the grease adding cycle and the work life of the bearing assembly are prolonged, and the effect is more remarkable when the bearing assembly is used outdoors.

Description

A kind of bearing unit dispelling the heat

Technical field

The utility model relates to bearing unit, is specially a kind of bearing unit dispelling the heat.

Background technique

Existing grease lubricating bearing parts, good airproof performance, application is extensive.But have two main problems: 1, bearing part is all-sealed, the heat radiation in bearing chamber does not have this approach of convection current, and radiating effect is poor, and bearing temperature rise is high, has shortened the filling cycle of lubricating grease and the life-span of bearing.2, along with the temperature in bearing chamber raises, gas expansion, pressure raises, make more to press between the lip of oil sealing and axle tighter, make on the one hand the temperature of axle and oil sealing raise, thereby the temperature rise that further improves bearing chamber has also reduced the working life of oil sealing and the efficiency of equipment on the other hand.

Model utility content

The technical problem that the utility model solves is to provide a kind of bearing unit dispelling the heat, to solve the shortcoming in above-mentioned background technology.

The technical problem that the utility model solves realizes by the following technical solutions:

The bearing unit dispelling the heat, comprises breather plug, end cap, bearing support, bearing gland, bearing, axle, plug, oil sealing.Described bearing support is fixed on worktable, described bearing gland and end cap are all fixed on bearing support and with bearing support and form bearing chamber, in bearing chamber, by bearing gland, press-fit and be fixed with described bearing, described bearing gland band central through bore, described axle is connected with the inner ring of described bearing after passing the central through bore on bearing gland in bearing chamber, in bearing gland center hole, be provided with the described oil sealing that bearing chamber is sealed, described end cap bottom has the row's fat mouth that passes into bearing chamber, in row's fat mouth, sealing is provided with described plug, the top of bearing support is provided with the through hole that passes into bearing chamber, in through hole, be provided with described breather plug.

Preferably, described oil sealing adopts outside framework oil seal, and described breather plug and plug material all adopt stainless steel.

Beneficial effect: the utility model is by being arranged on the breather plug at bearing support top, hot air in bearing chamber can be discharged into by the vent of breather plug in atmosphere, reduced on the one hand the temperature in bearing chamber, extend the stuffing cycle, also make on the other hand the inside and outside pressure of bearing chamber identical, alleviated the friction between oil sealing and axle, further extend the stuffing cycle, extending shaft bearing assembly operating life, during by occasion in the open, its effect will be more remarkable.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the utility model preferred embodiment.

In figure: breather plug 1, end cap 2, bearing support 3, bearing gland 4, bearing 5, axle 6, plug 7, oil sealing 8.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

A kind of bearing unit dispelling the heat referring to Fig. 1, comprises breather plug 1, end cap 2, bearing support 3, bearing gland 4, bearing 5, axle 6, plug 7, oil sealing 8.Bearing support 3 is fixed on worktable, bearing gland 4 and end cap 2 are all fixed on bearing support 3 and with bearing support 3 and form bearing chamber, in bearing chamber, by bearing gland 4, press-fit and be fixed with bearing 5, after the center hole that axle 6 passes on bearing gland 4, in bearing chamber, be connected with the inner ring of bearing 5, in bearing gland 4 center holes, be provided with the oil sealing 8 that bearing chamber is sealed, end cap 2 bottoms have the row's fat mouth that passes into bearing chamber, in row's fat mouth, sealing is provided with plug 7, the top of bearing support 3 is provided with the through hole that passes into bearing chamber, is provided with breather plug 1 in through hole.

The vent of breather plug 1 can reduce the temperature in bearing chamber by the exhaust of hot air in bearing chamber in atmosphere, extends the stuffing cycle of bearing 5 and the working life of bearing 5.Pressure inside and outside bearing chamber is identical, has alleviated the friction between oil sealing 8 and axle 6.Because breather plug 1 is located at the top of bearing support 3, avoided the leakage of grease, therefore can further extend the stuffing cycle, extend the operating life of bearing 5 and oil sealing 8, improve the efficiency of equipment.

More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. the bearing unit that can dispel the heat, it is characterized in that, comprise breather plug, end cap, bearing support, bearing gland, bearing, axle, plug, oil sealing, described bearing support is fixed on worktable, described bearing gland and end cap are all fixed on bearing support and with bearing support and form bearing chamber, in bearing chamber, by bearing gland, press-fit and be fixed with described bearing, described bearing gland band central through bore, described axle is connected with the inner ring of described bearing after passing the central through bore on bearing gland in bearing chamber, bearing gland is provided with the described oil sealing that bearing chamber is sealed, described end cap bottom has the row's fat mouth that passes into bearing chamber, in row's fat mouth, sealing is provided with described plug, the top of bearing support is provided with the through hole that passes into bearing chamber, in through hole, be provided with described breather plug.

2. a kind of bearing unit dispelling the heat according to claim 1, is characterized in that, described oil sealing adopts outside framework oil seal, and described breather plug and plug material all adopt stainless steel.