Bearing seat oil leakage prevention end cover and main shaft mounting structure

Abstract

The utility model discloses an oil leakage prevention end cover of a bearing seat and a main shaft mounting structure. The oil leakage prevention end cover of the bearing seat comprises a shaft seal part provided with a shaft mounting hole, a backflow part connected with the outer edge of the shaft seal part, and a mounting part connected with the outer edge of the backflow part, the shaft seal part comprises a plurality of labyrinth shaft seals, and a shaft mounting hole is defined by the labyrinth shaft seals; the backflow part is provided with a backflow groove, and the backflow groove surrounds the shaft seal part; the mounting part is provided with a plurality of screw holes, and the shaft seal part does not protrude out of the plane of the mounting part. The backflow groove is formed in the oil leakage prevention end cover of the bearing seat, and the multiple layers of labyrinth shaft seals are additionally arranged at the same time, so that the leakage risk of lubricating oil is greatly reduced. The structure can effectively shorten the length of the end cover, so that the model selection design of the main shaft is easier, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a bearing housing oil-proof end cap and a spindle mounting structure. Background Technology

[0002] The bearing housing end cover of a fan is generally designed to be arc-shaped, such as... Figure 1 As shown, this allows the oil to flow back. However, this design increases the length of the bearing, which in turn affects the selection of the shaft and increases manufacturing costs.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a bearing housing oil-proof end cap and a spindle mounting structure, so as to avoid increasing the length of the bearing, facilitate the selection of the shaft, and reduce the manufacturing cost.

[0005] The technical solution of this utility model is as follows: A bearing housing oil-proof end cap is provided, comprising: a shaft seal portion having a shaft mounting hole; a return portion connected to the outer edge of the shaft seal portion; and a mounting portion connected to the outer edge of the return portion; the shaft seal portion includes a plurality of labyrinth shaft seals, the labyrinth shaft seals forming the shaft mounting hole; the return portion is provided with a return groove, the return groove surrounding the shaft seal portion; the mounting portion is provided with a plurality of screw holes, and the shaft seal portion does not protrude from the plane of the mounting portion.

[0006] Furthermore, the mounting section is provided with a sealing groove.

[0007] Furthermore, a shaft sealing groove is provided on the outer side of the shaft seal portion.

[0008] Furthermore, the bearing housing oil-proof end cap also includes a positioning ring connected to the mounting portion.

[0009] Furthermore, this utility model also provides a spindle mounting structure, including: the aforementioned bearing housing oil-proof end cap, a bearing body, a bearing housing with a mounting surface, and a spindle; the bearing body is installed inside the bearing housing, the mounting part of the bearing housing oil-proof end cap is installed on the mounting surface, the spindle passes through the inner ring of the bearing body and the bearing housing oil-proof end cap, and the return groove faces the bearing housing.

[0010] Furthermore, the spindle mounting structure also includes a sealing strip, which is disposed in a sealing groove and contacts the mounting surface.

[0011] Furthermore, the spindle mounting structure also includes a mechanical seal ring, which is disposed within the shaft sealing groove.

[0012] Furthermore, the positioning ring mates with the opening of the bearing housing.

[0013] Furthermore, the bearing housing is provided with a bearing mounting groove, and the bearing body is installed in the bearing mounting groove.

[0014] Furthermore, the spindle mounting structure also includes a hook mounted on the bearing housing.

[0015] By adopting the above solution, this utility model provides a bearing housing oil-proof end cap and a spindle mounting structure. The bearing housing oil-proof end cap of this utility model features a return groove and simultaneously adds a multi-layer labyrinth shaft seal, significantly reducing the risk of lubricating oil leakage. This structure can effectively shorten the end cap length, making spindle selection and design easier and reducing manufacturing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an end cap in the prior art;

[0017] Figure 2 This is a schematic diagram of one embodiment of the spindle mounting structure of this utility model;

[0018] Figure 3 for Figure 2 Cross-sectional view of the embodiment;

[0019] Figure 4 A schematic diagram of the structure of the oil-proof end cap for the bearing housing;

[0020] Figure 5 This is a cross-sectional view of the oil leak prevention end cap for the bearing housing. Detailed Implementation

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Please see Figures 2-5This embodiment provides a spindle mounting structure, including: a bearing housing oil-proof end cap 10, a bearing body 11, a bearing housing 12 with a mounting surface, and a spindle 13. The bearing housing oil-proof end cap 10 includes: a shaft seal portion 14 with a shaft mounting hole, a return portion 15 connected to the outer edge of the shaft seal portion 14, and a mounting portion 16 connected to the outer edge of the return portion 15; the shaft seal portion 14 includes a plurality of labyrinth shaft seals 17, the labyrinth shaft seals 17 surrounding the shaft mounting hole; the return portion 15 is provided with a return groove 18 surrounding the shaft seal portion 14; the mounting portion 16 is provided with a plurality of screw holes 19, and the shaft seal portion 14 does not protrude from the plane of the mounting portion 16. The bearing body 11 is installed inside the bearing housing 12, the mounting part 16 of the bearing housing oil leak-proof end cover 10 is installed on the mounting surface, the spindle 13 passes through the inner ring of the bearing body 11 and the bearing housing oil leak-proof end cover 10, and the return groove 18 faces the bearing housing 12.

[0023] In this embodiment, the spindle mounting structure further includes a sealing strip 20, the mounting part 16 is provided with a sealing groove 21, and the sealing strip 20 is disposed in the sealing groove 21 and contacts the mounting surface.

[0024] In this embodiment, the spindle mounting structure further includes a mechanical seal ring 22. A shaft sealing groove 23 is provided on the outer side of the shaft sealing portion 14, and the mechanical seal ring 22 is disposed within the shaft sealing groove 23. The mechanical seal ring 22 is an Aesseal mechanical seal ring.

[0025] In this embodiment, the bearing housing oil leak-proof end cap 10 further includes: a positioning ring 24 connected to the mounting part 16; the positioning ring 24 engages with the opening of the bearing housing 12.

[0026] In this embodiment, the bearing housing 12 is provided with a bearing mounting groove, and the bearing body 11 is installed in the bearing mounting groove.

[0027] In this embodiment, the spindle mounting structure further includes a hook 25 mounted on the bearing housing 12.

[0028] In summary, this utility model provides a bearing housing oil-leakage-proof end cap and a spindle mounting structure. The oil-leakage-proof end cap of this utility model features a return groove and simultaneously incorporates a multi-layer labyrinth shaft seal, significantly reducing the risk of lubricating oil leakage. This structure effectively shortens the end cap length, making spindle selection and design easier and reducing manufacturing costs.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing housing oil-proof end cap, characterized in that, include: A shaft seal portion having a shaft mounting hole, a return portion connected to the outer edge of the shaft seal portion, and a mounting portion connected to the outer edge of the return portion; the shaft seal portion includes a plurality of labyrinth shaft seals, the labyrinth shaft seals surrounding the shaft mounting hole; the return portion having a return groove surrounding the shaft seal portion; the mounting portion having a plurality of screw holes, the shaft seal portion not protruding from the plane of the mounting portion.

2. The bearing housing oil-leakage-proof end cap according to claim 1, characterized in that, The mounting section is provided with a sealing groove.

3. The bearing housing oil-leakage-proof end cap according to claim 1, characterized in that, A shaft sealing groove is provided on the outer side of the shaft seal.

4. The bearing housing oil-leakage-proof end cap according to claim 1, characterized in that, It also includes a positioning ring connected to the mounting part.

5. A spindle mounting structure, characterized in that, include: The bearing housing oil leak-proof end cap, bearing body, bearing housing with mounting surface, and spindle as described in claim 1; the bearing body is installed inside the bearing housing, the mounting part of the bearing housing oil leak-proof end cap is installed on the mounting surface, the spindle passes through the inner ring of the bearing body and the bearing housing oil leak-proof end cap, and the return groove faces the bearing housing.

6. The spindle mounting structure according to claim 5, characterized in that, Also includes: A sealing strip is provided in the mounting part, and the sealing strip is disposed in the sealing groove and in contact with the mounting surface.

7. The spindle mounting structure according to claim 5, characterized in that, Also includes: A mechanical seal ring is provided on the outer side of the shaft seal portion, and the mechanical seal ring is disposed in the shaft seal groove.

8. A spindle mounting structure according to claim 5, characterized in that, The bearing housing oil leak-proof end cap further includes: a positioning ring connected to the mounting part; the positioning ring engages with the opening of the bearing housing.

9. A spindle mounting structure according to claim 5, characterized in that, The bearing housing is provided with a bearing mounting groove, and the bearing body is installed in the bearing mounting groove.

10. A spindle mounting structure according to claim 5, characterized in that, Also includes: A hook mounted on the bearing housing.

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