CN221054292U - Novel semi-conical end face floating seal - Google Patents
Novel semi-conical end face floating seal Download PDFInfo
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- CN221054292U CN221054292U CN202322853990.0U CN202322853990U CN221054292U CN 221054292 U CN221054292 U CN 221054292U CN 202322853990 U CN202322853990 U CN 202322853990U CN 221054292 U CN221054292 U CN 221054292U
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- 238000007667 floating Methods 0.000 title claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a novel semi-conical end face floating seal, which comprises a static seal seat and a semi-conical end face floating seal; the semi-conical end face floating seal is matched with the matching surface of the bearing inner ring for sealing, a positioning boss is arranged on the semi-conical end face floating seal, and a limiting groove matched with the positioning boss is arranged on the static seal seat for preventing the two from relative rotation in the running process; the static seal seat and the bearing are limited in the axial direction, the axial movement cannot occur, the effective fit between the semi-conical end face floating seal and the end face of the bearing is ensured, and the sealing effect is achieved. The device solves the problem that the clearance of the sealing seat cannot be ensured in the assembly of the chain wheel shaft group, and solves the oil leakage condition of the chain wheel shaft group of the scraper by a semi-conical end face floating sealing technology.
Description
Technical Field
The utility model relates to a transmission part of a scraper conveyor, in particular to a novel semi-conical end face floating seal.
Background
At present, the sprocket shaft group currently uses the toper floating seal to include stationary ring, floating ring, O type circle triplex, and its theory of operation is: the conical floating seal is arranged in the cavity of the sealing seat, the conical cavity of the sealing seat generates an oblique downward force on the O-shaped ring, the force is transmitted to the sealing ring of the floating seal, the oblique downward force is decomposed into forces for promoting the two half sealing rings to be mutually attached, the grinding surfaces between the fixed ring and the floating ring are effectively attached, an oil film is formed between the grinding surfaces of the floating seal, and the sealing effect is achieved in operation.
The force formed by the seal seat cavity to the floating seal needs to be kept at a proper value, the acting force needs to be effectively controlled by controlling the clearance between the floating seal seat and the static seal seat, the recommended value of a floating seal manufacturer is A+/-0.5 mm, the tolerance requirement is strict, and in the assembling process of the chain wheel shaft group, the clearance of the bearing is influenced by the machining tolerance of parts and the clearance of the bearing, particularly the clearance of the bearing, often the clearance of the bearing exceeds 0.5mm, and the axial tolerance of the bearing is difficult to control to be within the recommended value range of the floating seal manufacturer.
Also because the location of the floating seal is inside the seal seat, it is not possible to measure whether the gap is within the range recommended by the floating seal manufacturer. Finally, the use of the floating seal is directly affected, the service life of the floating seal can be greatly reduced due to the bigger clearance of the seal seat, and the oil leakage condition can be generated; the clearance of the sealing seat is smaller, and the floating sealing floating ring and the floating sealing seat can move relatively in the running process, so that the O-shaped ring is damaged, the oil leakage phenomenon of the chain wheel shaft group occurs, the bearing is damaged when the chain wheel shaft group is continuously operated, and the high-temperature phenomenon of the chain wheel shaft group occurs.
In the use of sprocket shaft group in pit, receive the impact of heavy load suddenly, the axial can produce the displacement, and the effort that the sealing seat formed to floating seal can suddenly change this moment, and floating seal floating ring and floating seal seat take place relative motion, causes the damage of O type circle, takes place the oil leak situation.
Disclosure of utility model
Aiming at the technical defects, the utility model aims to provide a novel semi-conical end face floating seal, which solves the problem that the clearance of a sealing seat cannot be ensured in the assembly of a chain wheel shaft group and solves the oil leakage condition of the chain wheel shaft group of a scraper through the semi-conical end face floating seal technology.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a novel semi-conical end face floating seal, which comprises a static seal seat and a semi-conical end face floating seal; the static seal seat is fixed on the end face of the chain wheel shaft group; the semi-conical end face floating seal is matched with the matching surface of the bearing inner ring for sealing, a positioning boss is arranged on the semi-conical end face floating seal, and a limiting groove matched with the positioning boss is arranged on the static seal seat for preventing the two from relative rotation in the running process; the static seal seat and the bearing are limited in the axial direction, the axial movement cannot occur, the effective fit between the semi-conical end face floating seal and the end face of the bearing is ensured, and the sealing effect is achieved.
Preferably, the V-shaped matching surface is adopted for matching between the semi-conical end face floating seal and the bearing inner ring to reduce the matching area, so that friction resistance is effectively reduced in operation due to the reduction of the matching area, and the use temperature of related parts can be reduced.
Preferably, the pin positioning is arranged between the semi-conical end face floating seal and the static seal seat, so that relative rotation can not be generated, and the O-shaped ring can be guaranteed not to be damaged due to relative motion, thereby causing the oil leakage condition.
The utility model has the beneficial effects that:
1. The device realizes that the grinding surface of the floating seal is always in effective cooperation through the semi-conical end surface floating seal technology, ensures the normal operation of the chain wheel shaft group, and solves the oil leakage phenomenon of the chain wheel shaft group caused by the damage of the floating seal.
2. The device solves the problem of relative movement among the O-shaped ring, the sealing ring and the sealing seat in the prior art, thereby solving the problem of oil leakage of the chain wheel shaft group and solving the problem that the existing floating sealing assembly clearance cannot be controlled.
3. The device can reduce the labor cost for replacing the sprocket shaft group, the replacement cost of the sealing element and the bearing, and meanwhile, the storage of spare parts of the bearing and the floating seal is reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a semi-conical novel end face floating seal provided by an embodiment of the utility model;
fig. 2 is a schematic view of a prior art tapered floating seal provided by the present utility model.
FIG. 3 is a schematic view of a prior art sprocket shaft set floating seal.
Reference numerals illustrate:
1. A static seal seat; 2. the semi-conical end face is sealed in a floating mode.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
1-2, A semi-conical novel end face floating seal comprises a static seal seat 1 and a semi-conical end face floating seal 2; the static seal seat 1 is fixed on a chain wheel shaft group, the semi-conical end face floating seal 2 is matched with the matching surface of the bearing inner ring to seal, a positioning boss is arranged on the semi-conical end face floating seal 2, and a limiting groove matched with the positioning boss is arranged on the static seal seat 1 and used for preventing the two from rotating relatively in the running process; the static seal seat 1 and the bearing are limited in the axial direction, the axial movement cannot occur, the effective fit between the semi-conical end face floating seal 2 and the end face of the bearing is ensured, and the sealing effect is achieved.
The V-shaped matching surface is adopted between the semi-conical end face floating seal 2 and the bearing inner ring in a matching way, so that the matching area is reduced, the friction resistance is effectively reduced in operation, and the use temperature of related parts can be reduced.
The semi-conical end face floating seal 2 and the static seal seat 1 are positioned by pins, so that relative rotation cannot be generated, and the O-shaped ring cannot be damaged due to relative motion, so that oil leakage is caused.
Through the floating seal technology of the semi-conical end face, the grinding surface of the floating seal is always in effective fit, the influence of machining tolerance and bearing play of parts in the assembling process of the sprocket shaft is avoided, the difficult problem cannot be guaranteed in the clearance of the seal seat in the assembling process of the sprocket shaft, and the clearance A+/-0.5 mm between the static seal seat and the floating seal seat is not required to be controlled. Thoroughly solves the oil leakage condition of the chain wheel shaft group of the scraper.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (3)
1. A novel semi-conical end face floating seal is characterized in that: comprises a static seal seat (1) and a semi-conical end face floating seal (2); the static seal seat (1) is fixed on the end face of the chain wheel shaft group, the semi-conical end face floating seal (2) is matched with the matching face of the bearing inner ring to seal, a positioning boss is arranged on the semi-conical end face floating seal (2), and a limiting groove matched with the positioning boss is arranged on the static seal seat (1) and used for preventing the two from rotating relatively in the running process; the static seal seat (1) and the bearing are limited in the axial direction, the axial movement cannot occur, the effective fit between the semi-conical end face floating seal (2) and the end face of the bearing is ensured, and the sealing effect is achieved.
2. A semi-conical novel end face floating seal as claimed in claim 1, wherein: the V-shaped matching surface is adopted between the semi-conical end face floating seal (2) and the bearing inner ring in a matching way, so that the matching area is reduced, friction resistance is effectively reduced in operation, and the use temperature of related parts is reduced.
3. A semi-conical novel end face floating seal as claimed in claim 1, wherein: the semi-conical end face floating seal (2) and the static seal seat (1) are positioned by pins, so that relative rotation cannot be generated, and the O-shaped ring cannot be damaged due to relative movement to cause oil leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322853990.0U CN221054292U (en) | 2023-10-24 | 2023-10-24 | Novel semi-conical end face floating seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322853990.0U CN221054292U (en) | 2023-10-24 | 2023-10-24 | Novel semi-conical end face floating seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221054292U true CN221054292U (en) | 2024-05-31 |
Family
ID=91199091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322853990.0U Active CN221054292U (en) | 2023-10-24 | 2023-10-24 | Novel semi-conical end face floating seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221054292U (en) |
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2023
- 2023-10-24 CN CN202322853990.0U patent/CN221054292U/en active Active
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