CN213943046U - Can effectively prevent dust and reduce compression roller assembly seal structure of grease loss - Google Patents
Can effectively prevent dust and reduce compression roller assembly seal structure of grease loss Download PDFInfo
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- CN213943046U CN213943046U CN202022635618.9U CN202022635618U CN213943046U CN 213943046 U CN213943046 U CN 213943046U CN 202022635618 U CN202022635618 U CN 202022635618U CN 213943046 U CN213943046 U CN 213943046U
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- compression roller
- sealing cover
- bearing
- shaft sleeve
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a compression roller assembly sealing structure capable of effectively preventing dust and reducing grease loss, which comprises a roller shaft, wherein the end part of the roller shaft is provided with a bearing, the outer side of the bearing is provided with a shaft sleeve, a sealing cover is arranged between the inner side of the shaft sleeve and the bearing, the inner side of the sealing cover is provided with a skeleton oil seal, the outer side of the sealing cover is provided with a retaining ring, and the outer circumference of the sealing cover is provided with a sealing ring; the outer side of the shaft sleeve is provided with a thrust washer and a nut. The protection of double seal can prevent effectively that external dust from getting into the compression roller and polluting lubricating grease, also can furthest reduce the leakage of compression roller lubricating grease, reduces the oil consumption of granulator daily operation, uses dustproof fuel-economizing compression roller can save a large amount of lubricating grease expenses for a long time.
Description
Technical Field
The utility model relates to a compression roller technical field, concretely relates to can effectively prevent dust and reduce compression roller assembly seal structure of grease loss.
Background
The inside of a common compression roller generally comprises two inner bushings, two outer bushings and two bearings, one spacer bush is used, labyrinth seal is adopted, and internal parts are compressed by a round nut and a retaining washer.
Referring to fig. 1, the structure of a press roll assembly in the prior art comprises an eccentric shaft 1, a round nut 2, a retaining washer 3, an outer bushing 4, a hole retainer ring 5, an inner bushing 6, a bearing 7, a spacer 8 and a press roll shell 9. Therefore, the sealing performance of the common labyrinth seal is not ideal enough, the conditions of oil leakage and dust pollution of grease easily occur during use, the daily oil consumption of the granulator can be increased due to the oil leakage, the operation cost is increased, the risk of bearing burnout is increased, the bearing grease is deteriorated due to the serious dust pollution, and a great amount of risks are buried in the operation of the granulator.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the problem that exists among the prior art is overcome, a can effectively prevent dust and reduce the compression roller assembly seal structure of grease loss is provided.
In order to solve the above problems, the technical solution of the present invention is as follows:
a compression roller assembly sealing structure capable of effectively preventing dust and reducing grease loss comprises a roller shaft, wherein a bearing is arranged at the end part of the roller shaft, a shaft sleeve is arranged outside the bearing, a sealing cover is arranged between the inner side of the shaft sleeve and the bearing, a framework oil seal is arranged on the inner side of the sealing cover, a retaining ring is arranged on the outer side of the sealing cover, and a sealing ring is arranged on the outer circumference of the sealing cover; the outer side of the shaft sleeve is provided with a thrust washer and a nut.
The shaft sleeve comprises a circular ring, a flange is arranged on the outer side of the circular ring, and a groove is formed in the inner side of the flange.
One end of the sealing cover is a large opening, the other end of the sealing cover is a small opening, the small opening end is inserted into the groove on the inner side of the shaft sleeve flange, and the large opening end is butted with the outer end face of the bearing.
The outer circumference of the big-opening end is provided with a double-sealing groove, the sealing groove is provided with a sealing ring, and the inner side surface of the big-opening end is provided with a framework oil seal.
The excircle of the small end is nested and matched with the groove at the inner side of the flange of the shaft sleeve to form labyrinth seal.
Advantageous effect, the utility model discloses increase extra mechanical seal, adopt the double seal form to ensure the problem of oil leak and dust. The mechanical seal selects O-shaped ring seal and skeleton oil seal, the O-shaped ring seals the gap between the outer ring of the bearing and the inner wall of the press roll shell, and the skeleton oil seal seals the gap between the inner ring of the bearing and the eccentric shaft.
The protection of double seal can prevent effectively that external dust from getting into the compression roller and polluting lubricating grease, also can furthest reduce the leakage of compression roller lubricating grease, reduces the oil consumption of granulator daily operation, uses dustproof fuel-economizing compression roller can save a large amount of lubricating grease expenses for a long time.
The dustproof oil-saving compression roller is low in cost, key parts in the compression roller do not need to be purchased again, and only corresponding parts in the compression roller need to be replaced, so that the replacement cost is greatly reduced.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
FIG. 1 is a schematic diagram of a prior art intermediate roll assembly.
Fig. 2 is a schematic view of a sealing structure of a compression roller assembly, which can effectively prevent dust and reduce the loss of grease.
Fig. 3 is a schematic view of the shaft sleeve structure of the present invention.
Fig. 3a is a schematic view of a three-dimensional structure of the shaft sleeve according to the present invention.
Fig. 4 is a schematic structural view of the sealing cover of the present invention.
Fig. 4a is a schematic view of a three-dimensional structure of the sealing cover of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 2, in the present embodiment, the main components are as follows: eccentric shaft 1 ', nut 2 ', backstop packing ring 3 ', shaft sleeve 4 ', retainer ring 5 ', sealing ring 6 ', sealing cover 7 ', framework oil seal 8 ', spacer 9 ', bearing 10 ' and press roll shell 11 '.
The structure relation is as follows, the end part of the roll shaft is provided with a bearing 10 ', the outer side of the bearing is provided with a shaft sleeve 4', a sealing cover 7 'is arranged between the inner side of the shaft sleeve and the bearing, the inner side of the sealing cover is provided with a framework oil seal 8', the outer side of the sealing cover is provided with a retainer ring 5 ', and the outer circumference of the sealing cover is provided with a sealing ring 6'; the outside of the shaft sleeve is provided with a thrust washer 3 'and a nut 2'.
Referring to fig. 3 and 3a, the shaft sleeve 4' includes a circular ring, and a rib is disposed on an outer side of the circular ring and a groove is disposed on an inner side of the rib.
Referring to fig. 4 and 4a, one end of the sealing cover 7 'is a large opening, the other end is a small opening, the small opening end is inserted into a groove on the inner side of the flange of the shaft sleeve 4', and the large opening end is butted with the outer end surface of the bearing. The excircle of the small end is nested and matched with the groove at the inner side of the flange of the shaft sleeve to form labyrinth seal.
The outer circumference of the big opening end is provided with a double-channel sealing groove, the sealing groove is provided with a sealing ring 6 ', and the inner side surface of the big opening end is provided with a framework oil seal 8'.
The added mechanical seal adopts an O-shaped seal ring and a framework oil seal, has good sealing effect aiming at the lubricating grease, and can block a flowing passage before the liquid grease enters the labyrinth seal gap.
The big high dust high vibrations of the operational environment of granulator, the vibrations that last can promote external dust motion, and the operational environment of O type circle and skeleton oil blanket is high friction high temperature, and the dust that is got into by external very easily under this kind of condition is worn and torn, and the influence is to the sealed effect of lubricating grease, and labyrinth seal then can reduce inside O type circle and skeleton oil blanket and external dust contact.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A compression roller assembly sealing structure capable of effectively preventing dust and reducing grease loss comprises a roller shaft, wherein a bearing is arranged at the end part of the roller shaft, and the compression roller assembly sealing structure is characterized in that a shaft sleeve is arranged on the outer side of the bearing, a sealing cover is arranged between the inner side of the shaft sleeve and the bearing, a framework oil seal is arranged on the inner side of the sealing cover, a retainer ring is arranged on the outer side of the sealing cover, and a sealing ring is arranged on the outer circumference of the sealing cover; the outer side of the shaft sleeve is provided with a thrust washer and a nut.
2. The sealing structure of claim 1, wherein the sleeve comprises a ring, the outer side of the ring is provided with a rib, and the inner side of the rib is provided with a groove.
3. The sealing structure of a roll assembly according to claim 1, wherein one end of the sealing cover is a large opening and the other end is a small opening, the small opening is inserted into the groove inside the rib of the shaft sleeve, and the large opening is butted with the outer end surface of the bearing.
4. The sealing structure of a roll assembly according to claim 1, wherein the outer circumference of the large opening end is provided with two sealing grooves, the sealing grooves are provided with sealing rings, and the inner side surface of the large opening end is provided with a framework oil seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022635618.9U CN213943046U (en) | 2020-11-16 | 2020-11-16 | Can effectively prevent dust and reduce compression roller assembly seal structure of grease loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022635618.9U CN213943046U (en) | 2020-11-16 | 2020-11-16 | Can effectively prevent dust and reduce compression roller assembly seal structure of grease loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213943046U true CN213943046U (en) | 2021-08-13 |
Family
ID=77208756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022635618.9U Active CN213943046U (en) | 2020-11-16 | 2020-11-16 | Can effectively prevent dust and reduce compression roller assembly seal structure of grease loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213943046U (en) |
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2020
- 2020-11-16 CN CN202022635618.9U patent/CN213943046U/en active Active
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