CN203488572U

CN203488572U - Water-stopping device for bearing

Info

Publication number: CN203488572U
Application number: CN201320495793.XU
Authority: CN
Inventors: 尚瑞; 张在滨; 丁惠华; 周大庆; 朱大地; 张在渝
Original assignee: Abundant Energy-Conservation Science And Technology Ltd Of Jiangsu He Haijia
Current assignee: Abundant Energy-Conservation Science And Technology Ltd Of Jiangsu He Haijia
Priority date: 2013-08-13
Filing date: 2013-08-13
Publication date: 2014-03-19
Anticipated expiration: 2023-08-13

Abstract

The utility model discloses a water-stopping device for a bearing. The water-stopping device is characterized in that a groove is processed in the upper end part of a shaft along an outer ring and a waterproof ring is sleeved on the upper end part, an inclined slope is processed on the upper surface of a bearing cover, close to the shaft, all bolt holes in the bearing cover are lifted up and a water discharge groove is formed. A groove is processed in a platform of a bearing chamber, close to the bolt holes, and the waterproof ring is sleeved on the platform. The bearing cover and the inner ring of the bearing are in framework seal. The inner circle of the waterproof ring is in interference fit with the indent surface of the groove. The design structure of the water-stopping device is small in size and good in water-stopping performance, and can be conveniently matched with universal transmission mechanisms, so that the water-stopping device is high in engineering practicality and suitable for popularization in a large area.

Description

A kind of bearing water cut-off device

Technical field

The utility model relates to a kind of water cut-off device, relates in particular to a kind of novel bearing water cut-off device.

Background technique

While being applicable to the operation of the more and axle of ponding, may there is environment and the occasion of obvious vibration more in the bearing water cut-off device that the utility model relates to.Sealability between existing axle and bearing cap and bearing cap and bearing chamber can not meet sealing needs and cause ponding to enter bearing chamber, damages bearing, thus the generation of the mechanical failure such as cause that bearing is scrapped.

In this type of running environment, during axle operation, water can leak out to axle and bearing cap junction under axially, and the applicable malthoid back-up ring of conventional shaft sealing can lose efficacy and lose waterproof action after the small radial vibration of axial length phase, causes water directly to enter bearing chamber and damages bearing.Meanwhile, bearing cap upper surface is also the comparatively serious region of ponding, and traditional bearing cap is horizontal plane design, and the inclination that may exist makes ponding more easily along the gap of axle and bearing cap, enter bearing chamber; Bolt hole is not made water sealing structure, between bearing cap and bearing chamber also without any waterstop sealing measure, so also with regard to causing from bearing cap upper surface along bolt hole and ponding be easy to infiltrate bearing chamber, especially at bearing cap and bearing chamber for a long time in vibration occasion, more easily there is this type of seepage.

Model utility content

Goal of the invention: the purpose of this utility model is to have overcome the deficiencies in the prior art, designs a kind of physical dimension little, and sealing performance is good, and can more conveniently with general driving mechanism coordinate a kind of bearing water cut-off device that engineering practicability is high.

Technological scheme: in order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

A kind of bearing water cut-off device of the present utility model, it is by axle upper-end part of driving, along outer ring, be processed with groove and overlap waterproof ring, bearing cap upper surface tilts to process near axle place, on bearing cap, all bolts hole place raises and processes and have drain tank, bearing chamber has groove and overlaps waterproof ring near the platform at bolt hole place, described waterproof ring inner circle and groove concave surface interference fit.

Beneficial effect: compared with prior art, the beneficial effects of the utility model are:

A kind of bearing water cut-off device of the present utility model, utilizes rationally effective structure to carry out draining, sealing configuration sealing that applicability is stronger, simple in structure, all very convenient to installing from manufacturing.

Accompanying drawing explanation

Fig. 1 is mechanism's sectional view of a kind of water cut-off device of the present utility model.

Fig. 2 is the utility model middle (center) bearing lid plan view.

Fig. 3,4,5, the 6th, the sealing schematic diagram of a kind of water cut-off device of the present utility model.

Wherein: 1. running shaft 2. rubber waterproof circle 3. outside framework oil seal 4. bearing cap 5. rubber seal 6. bearing 7. bearing chambers; The direction of arrow represents that ponding flows to.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:

As shown in Figure 1, a kind of bearing water cut-off device of the present utility model, it comprises that axle upper-end part of driving is processed with groove along outer ring and cover has waterproof ring, bearing cap upper surface tilts to process near axle place, on bearing cap, all bolts hole place raises and processes and have drain tank, bearing chamber has groove and overlaps waterproof ring near the platform at bolt hole place, described waterproof ring inner circle and groove concave surface interference fit.

During concrete enforcement, as shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, on running shaft, the ponding of following current is fallen on bearing cap because running shaft rotates the centrifugal force producing, the bearing cap that tilts to process is by the abaxial direction of current direction (bearing cap edge) diffluence, when current are pooled to the place that has drain tank on the bolt hole place meeting automatic stream bearing cap of raising processing.The current of emptying do not enter bolt hole along bolt gap, because the platform of bearing chamber near bolt hole place has groove and overlap waterproof ring, can stop this part current to continue to infiltrate.

The undeclared part that relates in the utility model is same as the prior art or adopt prior art to be realized.Be noted that for those skilled in the art, not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a bearing water cut-off device, it is characterized in that axle upper-end part of driving is processed with groove and overlaps waterproof ring along outer ring, bearing cap upper surface is near axle place processing face of slope, on bearing cap, all bolts hole place raises and processes and have drain tank, bearing chamber has groove and overlaps waterproof ring near the platform at bolt hole place, between bearing cap and bearing inner race, adopts reinforced seal.