CN214059585U - Shaft sealing structure for traction machine - Google Patents
Shaft sealing structure for traction machine Download PDFInfo
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- CN214059585U CN214059585U CN202022343746.6U CN202022343746U CN214059585U CN 214059585 U CN214059585 U CN 214059585U CN 202022343746 U CN202022343746 U CN 202022343746U CN 214059585 U CN214059585 U CN 214059585U
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Abstract
The utility model discloses a shaft sealing structure for a traction machine, which comprises a casing and a main shaft arranged in the casing through a bearing, wherein the outer side of the main shaft is sleeved with a sealing structure for sealing the gap between the main shaft and the casing; an annular sealing ring made of rubber is sleeved on the inner side of the sealing ring, and the sealing ring is arranged between the main shaft and the sealing ring and sleeved on the main shaft. The utility model discloses a shaft seal structure for hauler adopts the sealing ring cover of thin iron ring structure to establish the structure of sealing washer, has cancelled the end cover, has both practiced thrift the material, has also saved the volume, can be applicable to special occasions such as elevator hauler well, has better market perspective.
Description
Technical Field
The utility model belongs to the field of machinery, especially, relate to a shaft seal structure for hauler.
Background
The rotating shaft is a common structure, and is supported by a bearing and driven to rotate by a motor and the like to realize mechanical action. In order to ensure the normal operation of the rotating shaft and the bearing, the lubricating oil of the bearing is prevented from overflowing, and external impurities are prevented from entering the action part, so that good sealing is necessary. At present, a sealing ring is sleeved on a rotating shaft in a common sealing structure, then the sealing ring is fixed through an end cover, and the end cover is fixed on a machine shell in a threaded connection mode and the like. The end caps are typically thick and this sealing arrangement results in a large overall structure. Aiming at the situation that the volume requirement is higher for the brake structure, the traction machine structure and the like of the elevator, the existing sealing structure needs to be improved urgently.
Disclosure of Invention
In order to overcome the problems, the utility model provides a novel small, sealed reliable a shaft seal structure for hauler.
The technical scheme of the utility model is to provide a shaft seal structure for hauler, it includes the casing and sets up the main shaft in the casing through the bearing, the outside cover of main shaft establishes a seal structure that is used for sealing main shaft and casing clearance, the seal structure includes a set of sealing ring that establishes on the main shaft, the sealing ring is made by the metal, and fix on the casing through the screw; an annular sealing ring made of rubber is sleeved on the inner side of the sealing ring, and the sealing ring is arranged between the main shaft and the sealing ring and sleeved on the main shaft.
Preferably, an annular groove is formed in the outer side of the sealing ring, and the inner side portion of the sealing ring is arranged in the groove.
Preferably, a main sealing lip and a secondary sealing lip which are respectively inclined towards two sides are arranged on the inner side of the sealing ring.
Preferably, a right-angle groove is formed at the front end of the main sealing lip.
Preferably, an annular boss abutting against a bearing is arranged on the outer side of the main shaft, the sealing ring covers the region from the outer ring to the inner ring of the bearing, and the sealing ring abuts against the outer edge of the boss.
Preferably, the thickness of the sealing ring is 1.5-5 mm.
Preferably, the inner side of the sealing ring is also provided with a middle sealing lip, and the end face of the middle sealing lip is provided with an annular groove.
The utility model discloses a shaft seal structure for hauler adopts the sealing ring cover of thin iron ring structure to establish the structure of sealing washer, has cancelled the end cover, has both practiced thrift the material, has also saved the volume, can be applicable to special occasions such as elevator hauler well, has better market perspective.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a shaft sealing structure for a traction machine according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a front view of the seal ring and seal ring;
FIG. 4 is a schematic cross-sectional view taken along line C-C of FIG. 3;
FIG. 5 is a partial enlarged view of FIG. 4 at B;
fig. 6 is a schematic structural view of a seal ring of the second embodiment.
Detailed Description
The following describes in further detail embodiments of the present invention.
As shown in fig. 1 to 6, a shaft sealing structure for a traction machine of the present invention includes a housing 10 and a main shaft 12 provided in the housing 10 through a bearing 30. A sealing structure for sealing the gap between the main shaft 12 and the casing 10 is sleeved on the outer side of the main shaft 12. The sealing structure comprises a sealing ring 14 sleeved on the main shaft 12, wherein the sealing ring 14 is made of metal and is fixed on the shell 10 through a screw penetrating through a through hole 15; the sealing structure further comprises an annular sealing ring 16 made of rubber and arranged on the inner side of the sealing ring 14, and the sealing ring 16 is arranged between the main shaft 12 and the sealing ring 14 and sleeved on the main shaft 12. With this structure, the seal ring 16 is fixed by the seal ring 14, and the seal ring 16 performs a sealing function.
Further, an annular groove 18 is provided outside the seal ring 16, and an inner portion of the seal ring 14 is provided in the groove 18, thereby fixing the seal ring 16 to the seal ring 14.
The inner side of the sealing ring 16 is provided with a main sealing lip 20 and a secondary sealing lip 22 which incline towards two sides respectively, and the main sealing lip 20 and the secondary sealing lip 22 are splayed to form a sealing structure for two times.
Further, a right-angle groove 24 is formed in the front end of the main sealing lip 20, and when the main sealing lip 20 is pressed and attached to the main shaft 12, the right-angle groove 24 forms a plane perpendicular to the main shaft 12, so that the main sealing lip can prevent external impurities from entering.
Further, a step 26 for placing a bearing 30 is provided on the housing 10, an annular boss 28 abutting on a bearing 30 is provided outside the main shaft 12, and the position of the bearing 30 is defined by the step 26 and the boss 28. The seal ring 14 covers the area between the outer ring and the inner ring of the bearing 30, and the seal ring 16 abuts against the outer edge of the boss 28, so that the gap between the outer ring and the inner ring of the bearing 30 is sealed by the seal ring 14, and the gap between the seal ring 14 and the main shaft 12 is sealed by the seal ring 16, thereby forming a good seal.
The sealing ring 14 is made of thin steel plate, and the thickness of the sealing ring is 1.5-5 mm, so that the whole structure is low in cost and small in size.
The utility model discloses in the second embodiment, a new sealing washer 16 structure is provided, through main seal lip 20, inferior seal lip 22 to and set up in one between main seal lip 20 and inferior seal lip 22 seal lip 32, and set up an annular groove 34 on the seal lip 32 terminal surface, thereby form 4 seal lip structures of hugging closely main shaft 12, improved sealed effect.
The above embodiment is only one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A shaft sealing structure for a traction machine comprises a machine shell and a main shaft arranged in the machine shell through a bearing, and is characterized in that: the sealing structure comprises a sealing ring sleeved on the main shaft, the sealing ring is made of metal and is fixed on the machine shell through a screw; an annular sealing ring made of rubber is sleeved on the inner side of the sealing ring, and the sealing ring is arranged between the main shaft and the sealing ring and sleeved on the main shaft.
2. The shaft sealing structure for a traction machine according to claim 1, characterized in that: an annular groove is formed in the outer side of the sealing ring, and the inner side portion of the sealing ring is arranged in the groove.
3. The shaft sealing structure for a traction machine according to claim 2, characterized in that: and a main sealing lip and a secondary sealing lip which are respectively inclined towards two sides are arranged on the inner side of the sealing ring.
4. The shaft sealing structure for a traction machine according to claim 3, characterized in that: the front end of the main sealing lip is provided with a right-angle groove.
5. The shaft sealing structure for a traction machine according to claim 1, characterized in that: the outer side of the main shaft is provided with an annular boss abutted against the bearing, the sealing ring covers the region from the outer ring to the inner ring of the bearing, and the sealing ring is abutted against the outer edge of the boss.
6. The shaft sealing structure for a traction machine according to claim 1, characterized in that: the thickness of the sealing ring is 1.5-5 mm.
7. The shaft sealing structure for a traction machine according to claim 3, characterized in that: the inner side of the sealing ring is also provided with a middle sealing lip, and the end face of the middle sealing lip is provided with an annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022343746.6U CN214059585U (en) | 2020-10-20 | 2020-10-20 | Shaft sealing structure for traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022343746.6U CN214059585U (en) | 2020-10-20 | 2020-10-20 | Shaft sealing structure for traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214059585U true CN214059585U (en) | 2021-08-27 |
Family
ID=77396981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022343746.6U Active CN214059585U (en) | 2020-10-20 | 2020-10-20 | Shaft sealing structure for traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214059585U (en) |
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2020
- 2020-10-20 CN CN202022343746.6U patent/CN214059585U/en active Active
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