CN214367754U

CN214367754U - Labyrinth seal structure of angle grinder bearing

Info

Publication number: CN214367754U
Application number: CN202023149858.4U
Authority: CN
Inventors: 徐雅良; 徐超; 李平友; 陆斐雄
Original assignee: Braith Technology Suzhou Co ltd
Current assignee: Braith Technology Suzhou Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-10-08
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses an angle grinder bearing labyrinth seal structure, which comprises a casing, a bearing sleeve, a rotor, a bearing and a dustproof ring, wherein the bearing sleeve is arranged in the casing, the rotor is inserted in the bearing sleeve through the bearing, the dustproof ring is arranged on the rotor, and the bearing sleeve, the casing and the dustproof ring are connected to form a labyrinth seal cavity; the dust ring is characterized in that the lower end array of the outer wall of the dust ring is provided with convex teeth, one end of the dust ring, which is close to the bearing, is sunken downwards to form a dust collecting ring groove, the inner wall of the dust collecting ring groove is a guide inclined plane, the diameter of the guide inclined plane is increased gradually from top to bottom, the inner wall of the dust collecting ring groove is a vertical surface, and a guide angle is arranged at the upper end of the vertical surface. In this way, the utility model discloses simple structure, design benefit forms the maze between dust ring and casing and the bearing housing three, can effectively prevent the dust entering in the radiating time, improves product life greatly.

Description

Labyrinth seal structure of angle grinder bearing

Technical Field

The utility model relates to a mechanical seal technical field especially relates to an angle grinds bearing labyrinth seal structure.

Background

The mechanical sealing part belongs to one of mechanical basic elements with precision and complex structure, and is a key part of equipment such as various pumps, reaction synthesis kettles, turbine compressors, submersible motors and the like, the sealing performance and the service life of the mechanical sealing part depend on a plurality of factors, such as type selection, the precision of a machine, correct installation and use and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an angle grinder bearing labyrinth seal structure, simple structure, design benefit forms the maze between dust ring and casing and the bearing housing three, can effectively prevent the dust entering in the radiating time, improves product life greatly.

In order to solve the technical problem, the utility model discloses a technical scheme be: the labyrinth seal structure of the angle grinding bearing comprises a shell, a bearing sleeve, a rotor, a bearing and a dustproof ring, wherein the bearing sleeve is arranged in the shell, the rotor is inserted into the bearing sleeve through the bearing, the dustproof ring is arranged on the rotor, and the bearing sleeve, the shell and the dustproof ring are connected to form a labyrinth seal cavity; the dust ring is characterized in that the lower end array of the outer wall of the dust ring is provided with convex teeth, one end of the dust ring, which is close to the bearing, is sunken downwards to form a dust collecting ring groove, the inner wall of the dust collecting ring groove is a guide inclined plane, the diameter of the guide inclined plane is increased gradually from top to bottom, the inner wall of the dust collecting ring groove is a vertical surface, and a guide angle is arranged at the upper end of the vertical surface.

Preferably, the bearing housing lower extreme extends in proper order and is equipped with direction blocking part and cartridge portion, and direction blocking part from the top down shaft diameter decreases progressively, and cartridge portion is the central siphon form, and cartridge portion cartridge is in the dust collection annular.

Preferably, the bearing sleeve is internally embedded with an iron sheet to play a role in reinforcement and prevent the bearing sleeve from deforming, the outer wall array of the bearing sleeve is provided with reinforcing ribs, the bearing sleeve is in interference fit with the shell, and the reinforcing ribs are embedded in the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

simple structure, design benefit forms the maze between dust ring and casing and the bearing housing three, can effectively prevent the dust entering when the heat dissipation, improves product life greatly.

Drawings

Fig. 1 is a schematic structural diagram of a labyrinth seal structure of an angle grinder bearing.

FIG. 2 is a partial structural schematic diagram of a labyrinth seal structure of an angle grinder bearing.

FIG. 3 is a schematic view of the assembly of a bearing housing and a dust ring of a labyrinth seal structure of an angle grinder bearing.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.

Referring to fig. 1 to 3, an embodiment of the present invention includes:

a labyrinth seal structure of an angle grinding bearing comprises a casing 1, a bearing sleeve 2, a rotor 3, a bearing 4 and a dustproof ring 5, wherein the bearing sleeve 2 is arranged in the casing 1, the rotor 3 is inserted into the bearing sleeve 2 through the bearing 4, the dustproof ring 5 is arranged on the rotor 3, and the bearing sleeve 2, the casing 1 and the dustproof ring 5 are connected to form a labyrinth seal cavity 6; the array of the lower end of the outer wall of the dust ring 5 is provided with the convex teeth 51, one end of the dust ring 5, which is close to the bearing 4, is sunken downwards to form a dust collecting ring groove 50, the inner wall of the dust collecting ring groove 50 is a guide inclined plane 501, the axial diameter of the guide inclined plane 501 from top to bottom is increased gradually, the inner wall of the dust collecting ring groove 50 is a vertical surface 502, and the upper end of the vertical surface 502 is provided with a guide angle 503.

The lower extreme of bearing housing 2 extends in proper order and is equipped with direction blocking part 21 and cartridge portion 22, and direction blocking part 21 from the top down shaft diameter decreases progressively, and cartridge portion 22 is the central siphon form, and cartridge portion 22 cartridge is in dust collecting ring groove 50.

Bearing housing 2 is embedded to have the iron sheet, plays the reinforcing effect, prevents that the bearing housing from warping, 2 outer wall arrays of bearing housing are provided with strengthening rib 20, bearing

housing

2 and 1 interference fit of casing, and strengthening rib 20 inlays in casing 1.

The utility model relates to an angle grinder bearing labyrinth seal structure during operation, bearing housing 2, casing 1 and dust ring 5 are connected and are formed labyrinth seal chamber 6, dust ring 5 highly rotates along with rotor 3, protruding tooth 51 highly rotates and forms wind, wind is used for spilling heat, meanwhile, protruding tooth 51 rotates and forms the shielding, it gets into labyrinth seal chamber 6 to block outside dust, the part gets into the dust in labyrinth seal chamber 6 can enter into collection dirt annular 50 bottom along direction stop part 21, collection dirt annular 50 can be used to connect bearing 4's lubricating oil simultaneously.

The utility model relates to an angle grinder bearing labyrinth seal structure, simple structure, design benefit forms the maze between dust ring and casing and the bearing housing three, can effectively prevent the dust entering in the radiating time, improves product life greatly.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an angle grinds bearing labyrinth seal structure which characterized in that: the labyrinth seal structure of the angle grinding bearing comprises a shell, a bearing sleeve, a rotor, a bearing and a dustproof ring, wherein the bearing sleeve is arranged in the shell; the dust ring is characterized in that the lower end array of the outer wall of the dust ring is provided with convex teeth, one end of the dust ring, which is close to the bearing, is sunken downwards to form a dust collecting ring groove, the inner wall of the dust collecting ring groove is a guide inclined plane, the diameter of the guide inclined plane is increased gradually from top to bottom, the inner wall of the dust collecting ring groove is a vertical surface, and a guide angle is arranged at the upper end of the vertical surface.

2. The labyrinth seal structure for the angle grinder bearing according to claim 1, wherein: the bearing sleeve lower extreme extends in proper order and is equipped with direction stop part and cartridge portion, and direction stop part from the top down shaft diameter decreases progressively, and cartridge portion is the central siphon form, and cartridge portion cartridge is in the dust collecting ring inslot.

3. The labyrinth seal structure for the angle grinder bearing according to claim 2, wherein: the bearing sleeve is internally embedded with an iron sheet, the outer wall array of the bearing sleeve is provided with a reinforcing rib, the bearing sleeve is in interference fit with the shell, and the reinforcing rib is embedded in the shell.