CN221033886U - Antiseep end cover for speed reducer - Google Patents

Abstract

The application discloses an anti-leakage end cover for a speed reducer, which comprises a flange end cover, a sealing plate, a sealing cylinder, a sealing snap ring, a sealing step and an oil seal, wherein the sealing cylinder is coaxially arranged on the flange end cover and is used for being sleeved on a shaft to increase the tightness, the sealing snap ring with the diameter larger than that of the sealing cylinder is coaxially arranged and is used for being inserted into a bearing hole of a chassis, and a cavity is arranged between the sealing cylinder and the sealing snap ring. The sealing cylinder and the sealing clamping ring are adopted to increase the tightness between the bearing and the end cover as well as between the case and the end cover, so that the lubricating oil in the cavity can flow to lubricate the shaft, the bearing, the gear and the like, meanwhile, the oil collecting groove which can return oil is designed and can be communicated with the case, when the lubricating oil is attached to the shaft and flows to a gap between the shaft and the end cover, the lubricating oil flows back into the cavity through the oil return channel after scraping the lubricating oil on the shaft, and thus, the leakage of the lubricating oil is avoided.

Description

Antiseep end cover for speed reducer

Technical Field

The application relates to the technical field of flanges, in particular to an anti-leakage end cover for a speed reducer.

Background

The lubrication of the internal gear and the bearing of the speed reducer is directly related to the service life of the speed reducer, the end cover is used for sealing a gap between the shaft and the case, a closed cavity is formed in the case for storing lubricating oil, and the lubricating oil lubricated by the bearing can leak through the gap between the shaft and the end cover, so that the sealing performance of the end cover is ensured, and the key point of design and research and development is that.

Disclosure of Invention

The application aims to solve the problems and provide an anti-leakage end cover for a speed reducer, which adopts a multi-seal design to ensure the tightness of a case, so that lubricating oil in a cavity can flow to lubricate a shaft, a bearing, a gear and the like, and simultaneously design an oil return channel.

The application realizes the above purpose through the following technical scheme:

The utility model provides an antiseep end cover for speed reducer, including flange cover, shrouding, seal cartridge, seal ring, seal step and oil blanket, the coaxial seal cartridge that is equipped with of flange cover is used for cup jointing at epaxial increase leakproofness, still coaxial seal ring that is provided with the diameter more than seal cartridge is used for inserting quick-witted case bearing hole, have the cavity between seal cartridge and the seal ring, seal cartridge inner wall is equipped with the oil trap, the one end and the cavity intercommunication of oil trap, the upper end of flange cover is equipped with the seal step, set up the oil blanket on the seal step, shrouding fixed connection is on the upper end of flange cover and compress tightly the oil blanket on the seal step.

Preferably, the sealing plate is provided with a shaft hole for the main shaft of the speed reducer to pass through.

Preferably, the sealing ring further comprises an O-shaped sealing ring, and O-shaped grooves for accommodating the O-shaped sealing ring are formed between the sealing plate and the flange end cover, on the outer wall of the sealing clamping ring and on the periphery, far away from the sealing clamping ring, of the lower end of the flange end cover.

Preferably, a plurality of mounting holes are provided along the vicinity of the edge of the flange end cap.

Preferably, the O-ring is a rubber seal.

Compared with the prior art, the sealing cylinder and the sealing clamping ring are adopted to increase the tightness between the bearing and the end cover as well as between the case and the end cover, so that lubricating oil in the cavity can flow to lubricate the shaft, the bearing, the gear and the like, meanwhile, the oil collecting groove which can return oil is designed, the oil collecting groove can be communicated with the case, when the lubricating oil is attached to the shaft and flows to a gap between the shaft and the end cover, the lubricating oil flows back to the cavity through the oil return channel after scraping the lubricating oil on the shaft, and leakage of the lubricating oil is avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate the application and together with the description serve to explain, without limitation, the application. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present application;

fig. 2 is a schematic cross-sectional view of the present application.

The reference numerals are explained as follows:

1. A flange end cap; 2. a sealing plate; 3. a sealing cylinder; 4. a sealing clasp; 5. an oil sump; 6. a cavity; 7. a shaft hole; 8. a sealing step; 9. an oil seal; 10. an O-shaped groove; 11. an O-ring seal; 12. and (5) mounting holes.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are all based on fig. 1 and are merely for convenience in describing the present application and to simplify the description, rather than to indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

As shown in fig. 1-2, an anti-leakage end cover for a speed reducer comprises a flange end cover 1, a sealing plate 2, a sealing cylinder 3, a sealing clamping ring 4, a sealing step 8 and an oil seal 9, wherein the sealing cylinder 3 is coaxially arranged on the flange end cover 1 and used for sleeving on a shaft to increase tightness, the sealing clamping ring 4 with the diameter larger than that of the sealing cylinder 3 is coaxially arranged in a bearing hole of a case, a cavity 6 is arranged between the sealing cylinder 3 and the sealing clamping ring 4 and used for forming a sealed cavity with the inner cavity of the case so that lubricating oil can flow, an oil collecting groove 5 is arranged on the inner wall of the sealing cylinder 3, one end of the oil collecting groove 5 is communicated with the cavity 6 so that lubricating oil scraped on the inner side of the oil collecting groove 5 can flow to the sealed cavity, meanwhile, lubricating oil can also flow on the shaft through the oil collecting groove 5, the upper end of the flange end cover 1 is provided with the sealing step 8, the sealing step 8 is provided with the oil seal 9, the sealing plate 2 is fixedly connected to the upper end of the flange end cover 1 and the sealing step 8 is tightly pressed on the sealing step 8 so that the oil seal 9 can further seal the shaft.

Preferably, the sealing plate 2 is provided with a shaft hole 7 for the main shaft of the speed reducer to pass through, and the shaft of the speed reducer passes through the shaft hole 7.

Preferably, the sealing plate further comprises an O-shaped sealing ring 11, O-shaped grooves 10 for accommodating the O-shaped sealing ring 11 are formed between the sealing plate 2 and the flange end cover 1, on the outer wall of the sealing clamp ring 4 and on the periphery of the lower end of the flange end cover 1 away from the sealing clamp ring 4, when the end cover is installed on a speed reducer case, the O-shaped sealing ring 11 on the outer wall of the sealing clamp ring 4 and the lower end of the flange end cover 1 is extruded on the case to increase the sealing performance, and the sealing plate 2 is installed on the flange end cover 1 to press the O-shaped sealing ring 11 to increase the sealing performance.

Preferably, a plurality of mounting holes 12 are provided along the flange end cap 1 near the edges thereof to facilitate the mounting of the end cap by fasteners.

Preferably, the O-ring 11 is a rubber seal to be able to be compressed to increase tightness.

In the above-mentioned structure, when using, pass through fastener fixed mounting with flange end cover 1 on the speed reducer machine case, O shape sealing washer 11 increases the leakproofness, the axle of speed reducer passes shaft hole 7, sealed snap ring 4 corresponds the bearing frame hole location installation of speed reducer box, cavity and cavity 6 in the bearing frame hole form airtight cavity, lubricating oil lubrication bearing and axle, after the epaxial lubricating oil of absorption flows to the clearance between seal tube 3 and the axle, by the scraping of oil-collecting groove 5, then flow back to airtight cavity through oil-collecting groove 5 again, reduce lubricating oil seepage, can lubricate axle and bearing simultaneously, shrouding 2 compresses tightly oil blanket 9 on seal step 8, the oil blanket 9 further seals the axle, stop lubricating oil warp axle and flange end cover 1 seepage.

The foregoing has shown and described the basic principles, principal features and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims (5)

1. An antiseep end cover for speed reducer, its characterized in that: including flange end cover (1), shrouding (2), seal cylinder (3), seal ring (4), seal step (8) and oil blanket (9), the coaxial seal cylinder (3) that is equipped with of flange end cover (1) are used for cup jointing at epaxial increase leakproofness, still coaxial seal ring (4) that are provided with the diameter more than seal cylinder (3) are used for inserting quick-witted case bearing downthehole, have cavity (6) between seal cylinder (3) and seal ring (4), seal cylinder (3) inner wall is equipped with oil-collecting groove (5), the one end and the cavity (6) intercommunication of oil-collecting groove (5), the upper end of flange end cover (1) is equipped with seal step (8), set up oil blanket (9) on seal step (8), upper end and the compress tightly oil blanket (9) of shrouding (2) fixed connection at flange end cover (1) are on seal step (8).

2. The anti-leakage end cover for a speed reducer according to claim 1, wherein: the sealing plate (2) is provided with a shaft hole (7) for the main shaft of the speed reducer to pass through.

3. The anti-leakage end cover for a speed reducer according to claim 1, wherein: the sealing ring also comprises an O-shaped sealing ring (11), and O-shaped grooves (10) for accommodating the O-shaped sealing ring (11) are formed between the sealing plate (2) and the flange end cover (1), on the outer wall of the sealing clamping ring (4) and on the periphery, far away from the sealing clamping ring (4), of the lower end of the flange end cover (1).

4. The anti-leakage end cover for a speed reducer according to claim 1, wherein: a plurality of mounting holes (12) are arranged along the vicinity of the edge of the flange end cover (1).

5. A speed reducer anti-leakage end cap according to claim 3, wherein: the O-shaped sealing ring (11) is a rubber sealing ring.