CN201129461Y - Split type framework oil seal - Google Patents

Abstract

The utility model discloses a split-type framework oil seal, which comprises a split type annular seal body, wherein a spring is arranged in an inner lip of the seal body, a groove is arranged on the seal body, a hard framework arranged inside the groove is a split-type framework, a split opening of the framework is staggered from a spilt opening of the seal body, and the framework is spliced with the seal body. Compared with the traditional oil seal, the split-type framework oil seal has more convenient installation, better oil seal integral stiffness and sealing effect.

Description

The split type outside framework oil seal

Technical field

The utility model relates to the closing element that is used for rotary component, particularly a kind of split type outside framework oil seal.

Background technique

Modern industry production exists a large amount of speed reducers and bearing housing, the conventional seals element in these equipment---and outside framework oil seal lost efficacy fast, changed frequent; and need when changing equipment downtime is disintegrated; time-consuming, the then general insufficient strength of existing split type oil sealing, using effect is bad.

The model utility content

Problem at the prior art existence, the purpose of this utility model is to overcome above-mentioned shortcoming, a kind of installation is provided and changes oil sealing other parts that need not disintegrate, can directly it be taken off or load onto from axle, ensure the split type outside framework oil seal of oil sealing integral rigidity and sealing effect simultaneously.

The technical scheme in the invention for solving the technical problem is: a kind of split type outside framework oil seal, it comprises the split type annular seal body, epipharynx at described sealed body is provided with spring, described sealed body is provided with groove, in described groove, be provided with hard skeleton, described skeleton is the split type skeleton, and the subdivision mouth of described skeleton and the subdivision mouth of described sealed body stagger, and described skeleton and described sealed body are bonding.

There is the distance of 0.3-0.5mm in described split type outside framework oil seal between the described skeleton subdivision place two-port.

Described split type outside framework oil seal, described sealed body subdivision mouth section are U type, V-type or straight mouth.

Described split type outside framework oil seal, described spring are helical spring or V-arrangement spring.

The utility model is owing to the composite material with hardness height, good springiness is the split type skeleton, and this mode has kept traditional outside framework oil seal good rigidity, withstand voltage high advantage, has also ensured the rebound elasticity behind the subdivision simultaneously.In addition, under the skeleton subdivision place two-port free state micro-spacing is arranged, guarantee that the two surface of contact installation back of sealed body cooperates for extruding, guarantee the sealability at subdivision place.Because the subdivision end of sealed body can be V-arrangement butt joint or bonding, subdivision place skeleton is the plug-in type butt joint, and both do not misplace after the butt joint of subdivision both ends of the surface in conjunction with guaranteeing, have ensured the sealing of oil sealing.

Description of drawings

Fig. 1 is a plan view of the present utility model;

Fig. 2 is the longitudinal sectional view of Fig. 1.

Embodiment

As shown in Figure 1, 2, on the annular seal body 1 of split type, be reserved with groove, the split type skeleton made from the composite material of hardness height, good springiness 2 is bumped in the groove of sealed body 1, skeleton 2 bonds together (the subdivision mouth staggers except the position) by glue bond and sealed body 1, the subdivision mouth 5 of skeleton staggers with the subdivision mouth 4 of sealed body, epipharynx at sealed body 1 is provided with spring 3, and spring 3 can be helical spring or V-arrangement spring.

Skeleton subdivision mouth 5 has slight clearance when unassembled, spacing can be 0.3-0.5mm, guarantees that main body subdivision mouth 4 assembling backs cooperate for extruding, and main body subdivision mouth 4 can be V-type, U-shaped or straight mouthful, can dock during installation or bonding.

The utility model is compared with traditional oil sealing, and it is convenient install to change, and oil sealing integral rigidity and sealing effect are better.

More than be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.

Claims (4)

1. split type outside framework oil seal, it comprises the split type annular seal body, it is characterized in that: the epipharynx at described sealed body is provided with spring, described sealed body is provided with groove, in described groove, be provided with hard skeleton, described skeleton is the split type skeleton, and the subdivision mouth of described skeleton and the subdivision mouth of described sealed body stagger, and described skeleton and described sealed body are bonding.

2. split type outside framework oil seal according to claim 1 is characterized in that: the distance that has 0.3-0.5mm between the described skeleton subdivision place two-port.

3. split type outside framework oil seal according to claim 1 is characterized in that: described sealed body subdivision mouth section is U type, V-type or straight mouth.

4. split type outside framework oil seal according to claim 1 is characterized in that: described spring is helical spring or V-arrangement spring.

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