CN215059450U - Sealing structure for drum shaft of coal mining machine - Google Patents
Sealing structure for drum shaft of coal mining machine Download PDFInfo
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- CN215059450U CN215059450U CN202121540416.4U CN202121540416U CN215059450U CN 215059450 U CN215059450 U CN 215059450U CN 202121540416 U CN202121540416 U CN 202121540416U CN 215059450 U CN215059450 U CN 215059450U
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- ring
- end cover
- drum
- ring seat
- floating oil
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Abstract
The utility model discloses a coal-winning machine drum axle seal structure, including setting up at the epaxial bearing of drum, still including fixed cover at epaxial ring seat of drum, ring pad and cover the end cover of epaxial and terminal surface pressure on the ring pad of drum, be provided with floating oil blanket between end cover and the ring seat, be formed with on end cover and the ring seat with floating oil blanket complex annular, be provided with on the inner bore face of ring seat with the first O type sealing washer of drum axle complex. The utility model discloses in do not have relative rotation between first O type sealing washer and the sealed axle, first O type sealing washer long service life, and the sealing reliability of floating oil seal under the abominable operational environment such as many buggy, silt, aqueous vapor is superior to skeleton oil blanket and felt circle to it is more convenient that floating oil seal's change is maintained, consequently the utility model discloses the seal structure that floating oil seal and first sealing washer are constituteed is for the seal structure of current use skeleton oil blanket and felt combination, and its sealed effect is better, maintains more simple and convenient.
Description
Technical Field
The utility model relates to a seal structure technical field, in particular to structure of coal-winning machine drum axle.
Background
The ultra-thin coal seam mining machine is limited by the height of the machine body, and a drum shaft of the mining machine is generally sealed by combining a framework oil seal and a felt, so that the problems of poor sealing effect, short service life, easiness in oil leakage, difficulty in maintenance and the like exist.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a coal-winning machine drum shaft seal structure to solve current coal-winning machine drum shaft and adopt skeleton oil blanket and felt combined seal, there is sealed effect poor, short-lived, easy oil leak, maintains technical problem such as maintenance difficulty.
The utility model discloses coal-winning machine drum axle seal structure, including setting up at the epaxial bearing of drum, still including fixed cover at the epaxial ring seat of drum, cover the ring pad that leans on the bearing outer lane and the end cover of cover on the drum and terminal surface pressure on the ring pad outside the ring seat, end cover and drum axle normal running fit, be provided with floating oil seal between end cover and the ring seat, be formed with on end cover and the ring seat with floating oil seal complex annular, be provided with on the interior hole face of ring seat with the first O type sealing washer of drum axle complex.
Furthermore, a felt ring matched with the roller shaft is arranged on the inner hole surface of the end cover.
Furthermore, a second O-shaped sealing ring matched with the shell is arranged on the outer cylindrical surface of the end cover.
The utility model has the advantages that:
the utility model discloses a drum shaft sealing structure of a coal mining machine, which realizes the sealing of a drum shaft by arranging a ring seat on the drum shaft, arranging a floating oil seal between the ring seat and an end cover, arranging a first O-shaped sealing ring matched with the drum shaft on the ring seat and matching with the first O-shaped sealing ring; the utility model discloses in do not have relative rotation between first O type sealing washer and the sealed axle, first O type sealing washer long service life, and the sealing reliability of floating oil seal under the abominable operational environment such as many buggy, silt, aqueous vapor is superior to skeleton oil blanket and felt circle to it is more convenient that floating oil seal's change is maintained, consequently the utility model discloses the seal structure that floating oil seal and first sealing washer are constituteed is for the seal structure of current use skeleton oil blanket and felt combination, and its sealed effect is better, maintains more simple and convenient.
Drawings
Fig. 1 is a schematic view of a drum shaft sealing structure of a coal mining machine.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in the figure, this embodiment coal-winning machine drum axle seal structure, including setting up bearing 2 on drum shaft 1, still include fixed cover at the epaxial ring seat of drum 3, cover outside the ring seat and the terminal surface leans on ring pad 4 on the bearing inner race and cover at the epaxial and terminal surface of drum and press the end cover 5 on the ring pad, end cover and drum shaft normal running fit, be provided with floating oil seal 6 between end cover and the ring seat, be formed with on end cover and the ring seat with floating oil seal complex annular, be provided with on the inner bore face of ring seat with drum shaft complex first O type sealing washer 7. The ring seat in this embodiment can adopt the key-type connection with the drum shaft between, perhaps sets up the jackscrew fastening, perhaps adopts the interference fit structure to guarantee the reliability of being connected between axle sleeve and the axle, avoid appearing relative rotation.
In the drum shaft sealing structure of the coal mining machine in the embodiment, the ring seat is arranged on the drum shaft, the floating oil seal is arranged between the ring seat and the end cover, the first O-shaped sealing ring matched with the drum shaft is arranged on the ring seat, and the sealing of the drum shaft is realized through the matching with the first O-shaped sealing ring. There is not relative rotation between first O type sealing washer in this embodiment and the sealed axle, first O type sealing washer long service life, and the sealing reliability of floating oil seal under the adverse operational environment such as many buggy, silt, aqueous vapor is superior to skeleton oil blanket and felt circle to it is more convenient that floating oil seal's change is maintained, consequently the utility model discloses for the sealing method of current use skeleton oil blanket and felt combination, its sealed effect is better, maintains more simple and convenient.
As an improvement to the above embodiment, the felt ring 8 matched with the roller shaft is arranged on the inner hole surface of the end cover, and the sealing performance of the roller shaft is further enhanced by arranging the felt ring.
As an improvement to the above embodiment, a second O-ring 10 is disposed on an outer cylindrical surface of the end cap, and the end cap is fixed to the housing by screws, and the second O-ring further improves the sealing performance of the drum shaft.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (3)
1. Coal-winning machine drum axle seal structure, including setting up the bearing on the drum axle, its characterized in that: the roller bearing comprises a roller shaft, and is characterized by further comprising a ring seat fixedly sleeved on the roller shaft, a ring pad sleeved outside the ring seat and with an end face leaning against a bearing outer ring, and an end cover sleeved on the roller shaft and with an end face pressing on the ring pad, wherein the end cover is in running fit with the roller shaft, a floating oil seal is arranged between the end cover and the ring seat, annular grooves matched with the floating oil seal are formed in the end cover and the ring seat, and a first O-shaped sealing ring matched with the roller shaft is arranged on the inner hole surface of the ring seat.
2. The shearer drum shaft sealing structure according to claim 1, wherein: and a felt ring matched with the roller shaft is arranged on the inner hole surface of the end cover.
3. The shearer drum shaft sealing structure according to claim 1, wherein: and a second O-shaped sealing ring matched with the shell is arranged on the outer cylindrical surface of the end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121540416.4U CN215059450U (en) | 2021-07-07 | 2021-07-07 | Sealing structure for drum shaft of coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121540416.4U CN215059450U (en) | 2021-07-07 | 2021-07-07 | Sealing structure for drum shaft of coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215059450U true CN215059450U (en) | 2021-12-07 |
Family
ID=79224392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121540416.4U Active CN215059450U (en) | 2021-07-07 | 2021-07-07 | Sealing structure for drum shaft of coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215059450U (en) |
-
2021
- 2021-07-07 CN CN202121540416.4U patent/CN215059450U/en active Active
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