CN201149087Y

CN201149087Y - Bearing seal device

Info

Publication number: CN201149087Y
Application number: CNU2007201886778U
Authority: CN
Inventors: 肖国昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-28
Filing date: 2007-12-28
Publication date: 2008-11-12
Anticipated expiration: 2017-12-28

Abstract

The utility model discloses a bearing sealing device, comprising a bearing end sleeve and a bearing end ring. A bearing base hole and an end sleeve shaft hole which are coaxial and communicate with each other are arranged on the bearing end sleeve along the axial direction, the diameter of the bearing base hole meets the interference fit of a bearing outer ring which is matched therewith, the diameter of the end sleeve shaft hole meets the clearance fit of a shaft which is matched therewith; an end ring shaft hole is arranged at the bearing end ring, the bearing end ring is arranged beside the bearing base hole of the bearing end sleeve and fixedly connected with the bearing end cover, the end ring shaft hole is coaxial with the end sleeve shaft hole; the bearing sealing device can store lubricating grease, allow the bearing to maintain the lubrication state, ensure the bearing to be sealed from the outside, avoid dust and corrosive gas from entering, effectively maintain the cleanness of the bearing and the lubricating grease, avoid the erosion, prolong the service life of the bearing and save the operation cost and the maintenance cost, when in use, the bearing sealing device can also play the roles of supporting and ensuring the balance operation.

Description

Associated sealing arrangement for bearings

Technical field

The utility model relates to a kind of sealing component, particularly a kind of associated sealing arrangement for bearings.

Background technique

Bearing is a power equipment indispensable accessory, particularly rolling bearing, and is low at load because friction factor is low, is used widely on the light and handy equipment that moves.Rolling bearing generally is made up of inner ring, outer ring, rolling element and retainer, wherein the effect of inner ring is to match with axle, and rotate together with the axis, the outer ring effect is to match with bearing support, play a supportive role, rolling element is uniformly rolling element to be distributed between inner ring and the outer ring by means of retainer, because be rolling friction, friction factor is lower.In general, guarantee that rolling bearing can effectively reach operation reliably, must have fully and lubricate, prevent to take place between rolling element, raceway and the retainer directly contact, simultaneously, oiling agent can also prevent to wear and tear and protect the surface of bearing to avoid corrosion.Thus, the type of oiling agent and consumption are to need one of factor of considering in the design bearing.And bearing in use, because mechanical aging and contamination build-up, the oiling agent in the bearing configuration can slowly lose its lubricating functions, as untimely replacing lubricant grease, can cause damage of bearings.Some equipment particularly, such as unpowered blower fan, because load is low, rotating speed is not high, bearing does not have special-purpose seal arrangement, and working environment common relatively abominable (dust, corrosive gas etc.), cause the friction factor of fan bearing too high easily, make whole blower fan to seize up, even cause damage of bearings, reduce the running time of blower fan, increase frequency of maintenance, thereby increase operating cost.

Therefore, need a kind of associated sealing arrangement for bearings, can store lubricating grease, make bearing lubrication, guarantee bearing and extraneous sealing, avoid dust and corrosive gas to enter.

The model utility content

The purpose of this utility model is to provide a kind of associated sealing arrangement for bearings, setting can store the bearing support of lubricating grease, make bearing keep lubricating status, can guarantee bearing and extraneous sealing, avoid dust and corrosive gas to enter, effectively keep the cleaning of bearing and lubricating grease, prolong the bearing life cycle, save the operating cost and the cost of overhaul.

Associated sealing arrangement for bearings of the present utility model, comprise bearing end cover and bearing end ring, described bearing end puts bearing saddle bore and end cover axis hole coaxial and that connect is set vertically, the diameter of described bearing saddle bore satisfies and the bearing outer ring interference fit that is cooperated, and the diameter of end cover axis hole satisfies and institute's fitted shaft Spielpassung; Described bearing end ring is provided with the end ring axis hole, and the bearing saddle bore side that the bearing end ring is arranged at bearing end cover is fixedlyed connected with bearing end cover, described end ring axis hole with hold that to overlap axis hole coaxial.

Further, described bearing end ring is the flange plate shape, and the bearing end ring of flange plate shape and at least two axial attachment holes of the bearing end cover uniform in a circumferential direction setting of opposing end surface are undertaken fixedly connected by bolt;

Further, described bearing end ring is a bearing end cover, and the bearing saddle bore side of diaxon socket end cover is relative, and at least two axial attachment holes of the uniform in a circumferential direction setting of opposing end surface are undertaken fixedly connected by bolt;

Further, described end cover axis hole and/or end ring axis hole internal surface are provided with at least one annular maze trough;

Further, described annular maze trough is uniform vertically;

Further, described bearing saddle bore and end cover axis hole excessively are provided with chamfering in the place;

Further, the material of described bearing end cover and/or bearing end ring is nylon or teflon;

Further, this seal arrangement is preferably applied to the bearing of unpowered blower fan.

Associated sealing arrangement for bearings of the present utility model, setting can store the bearing support of lubricating grease, make bearing keep lubricating status, can guarantee bearing and extraneous sealing, avoid dust and corrosive gas to enter, effectively keep the cleaning of bearing and lubricating grease, avoid corroding, prolong the bearing life cycle, save the operating cost and the cost of overhaul; During use, bearing end cover and bearing outer ring interference fit, so the utility model also plays the effect of supporting and guaranteeing balance movement; Annular maze trough is set, is full of lubricating grease in the groove, further strengthen sealing effect, the rubbing surface that minimizing may exist makes equipment operation smooth and easy; Bearing saddle bore and end cover axis hole excessively place are provided with chamfering, after the installation shaft, form the cavity that can store lubricating grease between chamfering and the axle, can supplemental lubrication fat to bearing, be beneficial to raising service cycle.

Description of drawings

Fig. 1 is the utility model embodiment one a structural profile schematic representation;

Fig. 2 is the utility model embodiment two a structural profile schematic representation.

Embodiment

Embodiment one, and present embodiment is that the utility model is installed in the schematic representation on the unpowered blower fan.

Fig. 1 is the utility model embodiment one a structural profile schematic representation, as shown in the figure: associated sealing arrangement for bearings of the present utility model, comprise nylon bearing end cover 1 and nylon bearing end ring 2, bearing end ring 2 is the flange plate shape, bearing saddle bore 11 and end cover axis hole 12 coaxial and that connect are set on the bearing end cover 1 vertically, and bearing saddle bore 11 and end cover axis hole 12 excessively are provided with chamfering 7 in the place; The diameter of described bearing saddle bore 11 satisfies and the bearing 3 outer ring interference fit that cooperated, and the diameter of end cover axis hole 12 satisfies and institute's fitted shaft 5 Spielpassung the about 0.5mm in gap; Bearing end ring 2 is provided with end ring axis hole 21, and bearing saddle bore 11 sides that bearing end ring 2 is arranged at bearing end cover 1 are overlapped 1 with the bearing end and fixedlyed connected, end ring axis hole 21 with hold that to overlap axis hole 12 coaxial; Bearing end ring 2 opposing end faces of bearing end cover 1 and flange plate shape are uniform in a circumferential direction to be provided with four axial attachment holes, is undertaken fixedly connected by bolt 6; End cover axis hole 12 internal surfaces are uniform vertically to be provided with four annular maze troughs 4, and end ring axis hole 21 internal surfaces are uniform vertically to be provided with two annular maze troughs 4.

Embodiment two

Fig. 2 is the utility model embodiment two a structural profile schematic representation, as shown in the figure: associated sealing arrangement for bearings of the present utility model, comprise nylon bearing end cover 1 and nylon bearing end ring 2, it is identical that bearing end ring 2 and bearing end overlap 1 structure, bearing saddle bore 11 and end cover axis hole 12 coaxial and that connect are set on the bearing end cover 1 vertically, and bearing saddle bore 11 and end cover axis hole 12 excessively are provided with chamfering 7 in the place; The diameter of described bearing saddle bore 11 satisfies and the bearing 3 outer ring interference fit that cooperated, and the diameter of end cover axis hole 12 satisfies and institute's fitted shaft 5 Spielpassung the about 0.5mm in gap; Bearing saddle bore 11 sides of diaxon socket end cover 1 are relative, and opposing end surface is uniform in a circumferential direction to be provided with four axial attachment holes, is undertaken fixedly connected by bolt 6; End cover axis hole 12 internal surfaces are uniform vertically to be provided with four annular maze troughs 4.

Certainly, above embodiment can not limit the utility model protection domain just for clearer description the utility model.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. associated sealing arrangement for bearings, it is characterized in that: comprise bearing end cover (1) and bearing end ring (2), bearing saddle bore (11) and end cover axis hole (12) coaxial and that connect are set on the described bearing end cover (1) vertically, the diameter of described bearing saddle bore (11) satisfies and the bearing that is cooperated (3) outer ring interference fit, and the diameter of end cover axis hole (12) satisfies and institute's fitted shaft (5) Spielpassung; Described bearing end ring (2) is provided with end ring axis hole (21), and bearing saddle bore (11) side that bearing end ring (2) is arranged at bearing end cover (1) is fixedlyed connected with bearing end cover (1), and described end ring axis hole (21) is coaxial with end cover axis hole (12).

2. associated sealing arrangement for bearings according to claim 1, it is characterized in that: described bearing end ring (2) is the flange plate shape, the bearing end ring (2) of flange plate shape and at least two axial attachment holes of the uniform in a circumferential direction setting of bearing end cover (1) opposing end faces are undertaken fixedly connected by bolt (6).

3. associated sealing arrangement for bearings according to claim 1, it is characterized in that: described bearing end ring (2) is a bearing end cover, bearing saddle bore (11) side of diaxon socket end cover (1) is relative, at least two axial attachment holes of the uniform in a circumferential direction setting of opposing end surface are undertaken fixedly connected by bolt (6).

4. according to claim 1,2 or 3 described associated sealing arrangement for bearings, it is characterized in that: described end cover axis hole (12) and/or end ring axis hole (21) internal surface are provided with at least one annular maze trough (4).

5. associated sealing arrangement for bearings according to claim 4 is characterized in that: described annular maze trough (4) is uniform vertically.

6. according to claim 1,2,3 or 5 described associated sealing arrangement for bearings, it is characterized in that: described bearing saddle bore (11) and end cover axis hole (12) excessively place are provided with chamfering (7).

7. associated sealing arrangement for bearings according to claim 4 is characterized in that: bearing saddle bore (11) and end cover axis hole (12) excessively place are provided with chamfering (7).

8. associated sealing arrangement for bearings according to claim 6 is characterized in that: the material of described bearing end cover (1) and/or bearing end ring (2) is nylon or teflon.

9. associated sealing arrangement for bearings according to claim 7 is characterized in that: the material of described bearing end cover (1) and/or bearing end ring (2) is nylon or teflon.

10. according to Claim 8 or 9 described associated sealing arrangement for bearings, it is characterized in that: this seal arrangement is preferably applied to the bearing of unpowered blower fan.