CN112081813A - Mounting structure of rotating shaft - Google Patents
Mounting structure of rotating shaft Download PDFInfo
- Publication number
- CN112081813A CN112081813A CN202011045714.6A CN202011045714A CN112081813A CN 112081813 A CN112081813 A CN 112081813A CN 202011045714 A CN202011045714 A CN 202011045714A CN 112081813 A CN112081813 A CN 112081813A
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- China
- Prior art keywords
- bearing
- rotating shaft
- fixed seat
- wall
- mounting structure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/061—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing mounting a plurality of bearings side by side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2280/00—Valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a mounting structure of a rotating shaft, which comprises: the oil injection device comprises a fixed seat, a plurality of oil injection holes and a plurality of oil injection holes, wherein the fixed seat is provided with sleeve holes penetrating through two ends of the fixed seat; the rotating shaft penetrates through the sleeve hole in an inserted mode, a first bearing and a second bearing are arranged on the periphery of the rotating shaft in a sleeved mode at intervals, the first bearing and the second bearing are fixedly installed on the inner wall of the fixed seat, and the oil injection nozzle is arranged between the first bearing and the second bearing; the first sealing assembly is sleeved on the periphery of the rotating shaft, positioned on the outer side of the first bearing and attached to the inner wall of the fixed seat; the second sealing assembly is sleeved on the periphery of the rotating shaft, positioned on the outer side of the second bearing and attached to the inner wall of the fixed seat; the invention can ensure that the lubrication work of the rotating shaft and the first bearing and the lubricating work of the rotating shaft and the second bearing are carried out in the closed cavity, can prevent the lubricating oil from leaking and can realize the rapid addition of the lubricating oil.
Description
Technical Field
The invention relates to the technical field of mechanical transmission, in particular to a mounting structure of a rotating shaft.
Background
In the field of mechanical transmission, a bearing and a part of a rotating shaft connected with the bearing are usually arranged in a closed space, and then lubricating oil is added for lubrication, so that the lubricating oil can reduce the friction force between the rotating shaft and the bearing, reduce the labor loss of the rotating shaft and the bearing, and further prolong the service life of the rotating shaft and the bearing. However, such a closed space often causes leakage of lubricating oil due to poor sealing, which affects the lubricating effect of the rotating shaft and the bearing; furthermore, such closed spaces also have the problem of difficulty in oiling.
Disclosure of Invention
The purpose of the invention is: in the prior art, a bearing and a part of a rotating shaft connected with the bearing are usually arranged in a closed space and then are lubricated by adding lubricating oil, however, the lubricating oil leakage is caused by poor sealing of the closed space, so that the lubricating effect of the rotating shaft and the bearing is influenced, and the closed space has the problem of difficult oil adding; in order to solve the problems, the mounting structure of the rotating shaft has the advantages of good sealing and convenience in oil filling.
In order to achieve the above object, the present invention provides a mounting structure of a rotating shaft, comprising: the oil nozzle comprises a fixed seat, a plurality of oil nozzles and a plurality of oil nozzle plugs, wherein the fixed seat is provided with sleeve holes penetrating through two ends of the fixed seat; the rotating shaft penetrates through the sleeve hole in an inserted mode, a first bearing and a second bearing are arranged on the periphery of the rotating shaft in a sleeved mode at intervals, the first bearing and the second bearing are fixedly installed on the inner wall of the fixed seat, and the oil injection nozzle is arranged between the first bearing and the second bearing; the first sealing assembly is sleeved on the periphery of the rotating shaft, positioned on the outer side of the first bearing and attached to the inner wall of the fixed seat; the second sealing assembly is sleeved on the periphery of the rotating shaft, positioned on the outer side of the second bearing and attached to the inner wall of the fixed seat; and a closed cavity is defined between the peripheral wall of the rotating shaft, the inner wall of the fixed seat and the fixed seat between the first sealing assembly and the second sealing assembly.
Preferably, the oil nozzle plug is connected with the fixed seat in a sealing manner.
Preferably, the choke plug is a one-way valve plug which only allows lubricating oil to pass into the sleeve hole.
As preferred scheme, the glib stopper includes the disk seat, the disk seat with the fixing base links to each other, be equipped with the intercommunication in the disk seat the passageway of glib and external environment, the outer end of passageway has the valve plug chamber, be equipped with the valve plug in the valve plug chamber, the valve plug through an elastic component with the disk seat links to each other, just the valve plug can be followed the valve plug chamber slides in order to switch on or cut the valve plug chamber.
Preferably, the first sealing assembly comprises a first bearing gasket sleeved on the periphery of the rotating shaft and a first sealing ring arranged on the periphery of the first bearing gasket, an inner ring of the first bearing gasket is attached to the rotating shaft, a side wall of the first bearing gasket is abutted to the first bearing, and the periphery of the first sealing ring is attached to the inner wall of the fixing seat.
Preferably, the first sealing assembly further comprises a pressing ring sleeved on the periphery of the rotating shaft, and one side of the pressing ring is abutted against the first sealing ring and the first bearing gasket.
According to the preferable scheme, the periphery of the rotating shaft is further sleeved with a limiting nut, and the limiting nut is abutted to one side, deviating from the first bearing gasket, of the pressing ring.
Preferably, the rotating shaft is further inserted with a limit bolt, and the limit bolt is abutted to the limit nut.
Preferably, the second sealing assembly comprises a second bearing gasket sleeved on the periphery of the rotating shaft and a second sealing ring arranged on the periphery of the second bearing gasket, the side wall of the second bearing gasket is abutted against the second bearing, the inner ring of the second sealing ring is attached to the rotating shaft, and the periphery of the second sealing ring is attached to the inner wall of the fixed seat.
Preferably, the first bearing and the second bearing are both tapered roller bearings.
The embodiment of the invention provides a mounting structure of a rotating shaft, which has the following beneficial effects compared with the prior art:
in the invention, a sleeve hole penetrating through two ends of a fixed seat is arranged in the fixed seat, an oil injection nozzle communicated with the sleeve hole is arranged on the side wall of the fixed seat, and an oil nozzle plug is arranged in the oil injection nozzle; the rotating shaft penetrates through the sleeve hole, a first bearing and a second bearing are sleeved on the periphery of the rotating shaft at intervals, the first bearing and the second bearing are fixedly arranged on the inner wall of the fixed seat and used for supporting the rotating shaft, and the oil injection nozzle is arranged between the first bearing and the second bearing; the periphery of the rotating shaft is also respectively sleeved with a first sealing assembly and a second sealing assembly, the first sealing assembly is arranged on the outer side of the first bearing and is attached to the inner wall of the fixed seat, the second sealing assembly is arranged on the outer side of the second bearing and is attached to the inner wall of the fixed seat, and a closed cavity is defined among the outer peripheral wall of the rotating shaft, the inner wall of the fixed seat, the first sealing assembly and the second sealing assembly; when lubricating oil is added, the oil can be added only by pulling out the oil nozzle plug and pouring the lubricating oil into the oil injection nozzle, and the oil nozzle plug is inserted after the oil is added so as to seal the cavity; the first bearing, the second bearing and the rotating shaft between the first bearing and the second bearing are arranged in the closed cavity, so that the rotating shaft and the first bearing, the rotating shaft and the second bearing are lubricated in the closed cavity, the leakage of lubricating oil can be avoided, and the lubricating effect of the lubricating oil is ensured.
Drawings
Fig. 1 is a schematic structural view of a mounting structure of a rotating shaft according to an embodiment of the present invention;
fig. 2 is an exploded view of a mounting structure of a rotating shaft according to an embodiment of the present invention;
fig. 3 is an internal sectional view of a mounting structure of a rotating shaft according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a nozzle plug of a mounting structure of a rotating shaft according to an embodiment of the present invention;
FIG. 5 is an internal sectional view of a nozzle plug of a mounting structure of a rotating shaft according to an embodiment of the present invention;
in the figure, 1, a fixed seat; 11. trepanning; 12. an oil injection nozzle; 2. a nozzle plug; 21. a channel; 22. a valve plug cavity; 23. a valve plug; 24. an elastic member; 25. a valve seat; 3. a rotating shaft; 4. a first bearing; 5. a second bearing; 6. a first seal assembly; 61. a first bearing pad; 62. a first seal ring; 63. a compression ring; 7. a second seal assembly; 71. a second bearing pad; 72. a second seal ring; 8. a limit nut; 9. and a limiting bolt.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1 to 5, a mounting structure of a rotating shaft according to a preferred embodiment of the present invention includes: the oil nozzle comprises a fixed seat 1, wherein sleeve holes 11 penetrating through two ends of the fixed seat 1 are formed in the fixed seat 1, an oil nozzle 12 communicated with the sleeve holes 11 is formed in the side wall of the fixed seat 1, and an oil nozzle plug 2 is arranged in the oil nozzle 12; the rotating shaft 3 penetrates through the sleeve hole 11, a first bearing 4 and a second bearing 5 are sleeved on the periphery of the rotating shaft 3 at intervals, the first bearing 4 and the second bearing 5 are both fixedly installed on the inner wall of the fixed seat 1, and the oil nozzle 2 is arranged between the first bearing 4 and the second bearing 5; the first sealing assembly 6 is sleeved on the periphery of the rotating shaft 3, positioned on the outer side of the first bearing 4 and attached to the inner wall of the fixed seat 1; the second sealing assembly 7 is sleeved on the periphery of the rotating shaft 3, is positioned on the outer side of the second bearing 5 and is attached to the inner wall of the fixed seat 1; a closed chamber is defined among the peripheral wall of the rotating shaft 3, the inner wall of the fixed seat 1, the first sealing assembly 6 and the second sealing assembly 7.
In the invention, a sleeve hole 11 penetrating through two ends of a fixed seat 1 is arranged in the fixed seat, an oil injection nozzle 12 communicated with the sleeve hole 11 is arranged on the side wall of the fixed seat, and an oil nozzle plug 2 is arranged in the oil injection nozzle 12; the rotating shaft 3 is inserted into the sleeve hole 11 in a penetrating manner, a first bearing 4 and a second bearing 5 are sleeved on the periphery of the rotating shaft at intervals, the first bearing 4 and the second bearing 5 are both fixedly installed on the inner wall of the fixed seat 1 and used for supporting the rotating shaft 3, and the oil nozzle 12 is arranged between the first bearing 4 and the second bearing 5; a first sealing assembly 6 and a second sealing assembly 7 are respectively sleeved on the periphery of the rotating shaft 3, the first sealing assembly 6 is arranged on the outer side of the first bearing 4 and is attached to the fixed seat 1, the second sealing assembly 7 is arranged on the outer side of the second bearing 5 and is attached to the inner wall of the fixed seat 1, and a closed cavity is defined among the outer peripheral wall of the rotating shaft 3, the inner wall of the fixed seat 1, the first sealing assembly 6 and the second sealing assembly 7; when lubricating oil is added, the oil adding can be completed only by pulling out the oil nozzle plug 2 and pouring the lubricating oil into the oil injection nozzle 12, and the oil nozzle plug 2 is inserted after the oil adding is completed so as to seal the cavity; the first bearing 4, the second bearing 5 and the rotating shaft 3 between the first bearing and the second bearing are arranged in the sealed cavity, so that the lubricating work of the rotating shaft 3 and the first bearing 4, the rotating shaft 3 and the second bearing 5 is performed in the sealed cavity, the lubricating oil leakage can be avoided, and the lubricating effect of the lubricating oil is ensured.
In the embodiment, the oil nozzle plug 2 is hermetically connected with the fixed seat 1; specifically, the oil nozzle plug 2 is pressed on the oil nozzle 12, and one end of the oil nozzle plug extending into the oil nozzle 12 is provided with a thread, and the oil nozzle 12 is sealed through the pressing cover and the thread.
Furthermore, the oil nozzle plug 2 is a one-way valve plug only allowing lubricating oil to enter the sleeve hole 11, specifically, the oil nozzle plug 2 comprises a valve seat 25, the valve seat 25 is connected with the fixing seat 1, a channel 21 communicating the oil injection nozzle 12 with the external environment is arranged in the valve seat 25, a valve plug cavity 22 is arranged at the outer end of the channel 21, a valve plug 23 is arranged in the valve plug cavity 22, the valve plug 23 is connected with the valve seat 25 through an elastic piece 24, when oil is added, the valve plug 23 is pressed to enable the valve plug 23 to move downwards, the elastic piece 24 is compressed to open the valve plug cavity 22, the oil injection nozzle 12 is opened, lubricating oil is injected into the valve plug cavity 22, and the lubricating oil flows into the sleeve hole 11 along the valve plug cavity 22, the channel 21 and the oil injection; after the oil is added, the pressing on the valve plug 23 is cancelled, the valve plug 23 moves upwards under the elastic force action of the elastic piece 24 and abuts against the inner wall of the valve seat 25, the valve plug cavity 22 is closed, the oil filling nozzle 12 is closed, and the sealing between the oil filling nozzle plug 2 and the fixed seat 1 is realized.
In this embodiment, the first sealing assembly 6 includes a first bearing gasket 61 sleeved on the outer periphery of the rotating shaft 3 and a first sealing ring 62 arranged on the outer periphery of the first bearing gasket 61, an inner ring of the first bearing gasket 61 is attached to the rotating shaft 3, a side wall of the first bearing gasket is abutted to the first bearing 4, the outer periphery of the first sealing ring 62 is attached to the inner wall of the fixing seat 1, the first bearing gasket 61 is preferably made of steel, the first sealing ring 62 is made of steel and rubber, for example, the steel is 10# steel, the first bearing gasket 61 and the first sealing ring 62 block a gap between the outer periphery of the rotating shaft 3 and the inner wall of the fixing seat 1, and can well prevent the lubricating oil from flowing out from the gap; further, the first sealing assembly 6 further includes a pressing ring 63 sleeved on the periphery of the rotating shaft 3, and one side of the pressing ring 63 abuts against the first sealing ring 62 and the first bearing gasket 61, so as to prevent the rotating shaft 3 from rotating, and drive the first sealing ring 62 and the first bearing gasket 61 to move, thereby affecting the sealing effect of the two.
This embodiment still overlaps in the periphery of axis of rotation 3 and is equipped with stop nut 8, and stop nut 8 and clamp ring 63 deviate from one side looks butt of first bearing gasket 61 for prevent that clamp ring 63 from removing. The rotating shaft 3 is also inserted with a limit bolt 9, and the limit bolt 9 is abutted to the limit nut 8 and used for preventing the limit nut 8 from moving.
In this embodiment, the second sealing assembly 7 includes a second bearing pad 71 sleeved on the periphery of the rotating shaft 3 and a second sealing ring 72 disposed on the periphery of the second bearing pad 71, a side wall of the second bearing pad 71 abuts against the second bearing 5, an inner ring of the second sealing ring 72 is attached to the rotating shaft 3, and an outer periphery of the second sealing ring 72 is attached to an inner wall of the fixing seat 1, specifically, an outer diameter of the rotating shaft 3 gradually increases from one end close to the first bearing 4 to one end close to the second bearing 5, the second sealing ring 72 can be directly attached to the periphery of the rotating shaft 3 and abut against the side wall of the rotating shaft 3, so that the second sealing ring 72 is limited, and a pressing ring is not required to press the second sealing ring 72; the second bearing gasket 71 is also preferably made of steel, the second sealing ring 72 is also made of steel and rubber, and the second bearing gasket 71 and the second sealing ring 72 seal a gap between the outer peripheral wall of the rotating shaft 3 and the inner wall of the fixed seat 1 to prevent lubricating oil from flowing out of the gap; the periphery wall of axis of rotation 3, the inner wall of fixing base 1, it has airtight cavity to inject between first seal assembly 6 (first bearing gasket 61, first sealing washer 62, clamp ring 63) and the second seal assembly 7 (second bearing gasket 71, second sealing washer 72) for axis of rotation 3 and first bearing 4, the lubricated work of axis of rotation 3 and second bearing 5 is gone on in airtight cavity, has prevented the leakage of lubricating oil effectively, thereby has guaranteed its lubricated effect.
In this embodiment, the first bearing 4 and the second bearing 5 are tapered roller bearings, and the periphery of the rotating shaft 3 is located to two tapered roller bearings corresponding covers for providing support for the rotating shaft 3.
The working process of the invention is as follows:
the rotating shaft 3 is inserted into the sleeve hole 11 in a penetrating manner, a first bearing 4 and a second bearing 5 are sleeved on the periphery of the rotating shaft at intervals, and the first bearing 4 and the second bearing 5 are both fixedly arranged on the inner wall of the fixed seat 1 and used for supporting the rotating shaft 3; the periphery of the rotating shaft 3 is further respectively sleeved with a first sealing assembly 6 and a second sealing assembly 7, the first sealing assembly 6 is arranged on the outer side of the first bearing 4 and is attached to the inner wall of the fixing seat 1, the second sealing assembly 7 is arranged on the outer side of the second bearing 5 and is attached to the inner wall of the fixing seat 1, a closed cavity is defined between the outer peripheral wall of the rotating shaft 3 and the inner wall of the fixing seat 1 and between the first sealing assembly 6 and the second sealing assembly 7, so that the lubricating work of the rotating shaft 3 and the first bearing 4, the rotating shaft 3 and the second bearing 5 is performed in the closed cavity, and the lubricating effect of the rotating shaft 3 is guaranteed; offer the glib talker 12 with trepanning 11 intercommunications at the lateral wall of fixing base 1, be equipped with glib talker stopper 2 in the glib talker 12, set up glib talker 12 and glib talker stopper 2 and can realize quick oil-adding, guaranteed simultaneously that lubricated work can go on in inclosed cavity.
To sum up, the embodiment of the invention provides a mounting structure of a rotating shaft, which has the following beneficial effects:
in the invention, a sleeve hole penetrating through two ends of a fixed seat is arranged in the fixed seat, an oil injection nozzle communicated with the sleeve hole is arranged on the side wall of the fixed seat, and an oil nozzle plug is arranged in the oil injection nozzle; the rotating shaft penetrates through the sleeve hole, a first bearing and a second bearing are sleeved on the periphery of the rotating shaft at intervals, the first bearing and the second bearing are fixedly arranged on the inner wall of the fixed seat and used for supporting the rotating shaft, and the oil injection nozzle is arranged between the first bearing and the second bearing; the periphery of the rotating shaft is also respectively sleeved with a first sealing assembly and a second sealing assembly, the first sealing assembly is arranged on the outer side of the first bearing and is attached to the inner wall of the fixed seat, the second sealing assembly is arranged on the outer side of the second bearing and is attached to the inner wall of the fixed seat, and a closed cavity is defined among the outer peripheral wall of the rotating shaft, the inner wall of the fixed seat, the first sealing assembly and the second sealing assembly; when lubricating oil is added, the oil can be added only by pulling out the oil nozzle plug and pouring the lubricating oil into the oil injection nozzle, and the oil nozzle plug is inserted after the oil is added so as to seal the cavity; the first bearing, the second bearing and the rotating shaft between the first bearing and the second bearing are arranged in the closed cavity, so that the rotating shaft and the first bearing, the rotating shaft and the second bearing are lubricated in the closed cavity, the leakage of lubricating oil can be avoided, and the lubricating effect of the lubricating oil is ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A mounting structure of a rotating shaft, comprising:
the oil nozzle comprises a fixed seat, a plurality of oil nozzles and a plurality of oil nozzle plugs, wherein the fixed seat is provided with sleeve holes penetrating through two ends of the fixed seat;
the rotating shaft penetrates through the sleeve hole in an inserted mode, a first bearing and a second bearing are arranged on the periphery of the rotating shaft in a sleeved mode at intervals, the first bearing and the second bearing are fixedly installed on the inner wall of the fixed seat, and the oil injection nozzle is arranged between the first bearing and the second bearing;
the first sealing assembly is sleeved on the periphery of the rotating shaft, positioned on the outer side of the first bearing and attached to the inner wall of the fixed seat;
the second sealing assembly is sleeved on the periphery of the rotating shaft, positioned on the outer side of the second bearing and attached to the inner wall of the fixed seat;
and a closed cavity is defined between the peripheral wall of the rotating shaft, the inner wall of the fixed seat and the fixed seat between the first sealing assembly and the second sealing assembly.
2. The rotating shaft mounting structure according to claim 1, wherein a sealing connection is provided between the choke plug and the fixing seat.
3. The mounting structure for a rotating shaft according to claim 2, wherein said choke plug is a one-way valve plug which allows only the passage of lubricating oil into said trepan.
4. The rotating shaft mounting structure according to claim 3, wherein the nozzle plug includes a valve seat, the valve seat is connected to the fixing seat, a passage is provided in the valve seat to communicate the nozzle with an external environment, a valve plug chamber is provided at an outer end of the passage, a valve plug is provided in the valve plug chamber, the valve plug is connected to the valve seat through an elastic member, and the valve plug can slide along the valve plug chamber to open or close the valve plug chamber.
5. The mounting structure of a rotating shaft according to claim 1, wherein the first seal assembly includes a first bearing spacer sleeved on the outer periphery of the rotating shaft and a first seal ring disposed on the outer periphery of the first bearing spacer, an inner ring of the first bearing spacer is attached to the rotating shaft, a side wall of the first bearing spacer abuts against the first bearing, and the outer periphery of the first seal ring is attached to the inner wall of the fixing seat.
6. The mounting structure of a rotating shaft according to claim 5, wherein the first seal assembly further includes a pressing ring that is fitted around an outer periphery of the rotating shaft, and one side of the pressing ring abuts against the first seal ring and the first bearing spacer.
7. The mounting structure of the rotating shaft according to claim 6, wherein a limit nut is further sleeved on the periphery of the rotating shaft, and the limit nut abuts against one side, away from the first bearing gasket, of the pressing ring.
8. The rotating shaft mounting structure according to claim 7, wherein a limit bolt is further inserted into the rotating shaft, and the limit bolt abuts against the limit nut.
9. The mounting structure of a rotating shaft according to claim 1, wherein the second sealing assembly includes a second bearing pad sleeved on the outer periphery of the rotating shaft and a second sealing ring disposed on the outer periphery of the second bearing pad, a side wall of the second bearing pad abuts against the second bearing, an inner ring of the second sealing ring is attached to the rotating shaft, and an outer periphery of the second sealing ring is attached to the inner wall of the fixing seat.
10. The mounting structure for a rotating shaft according to claim 1, wherein the first bearing and the second bearing are both tapered roller bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045714.6A CN112081813A (en) | 2020-09-28 | 2020-09-28 | Mounting structure of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045714.6A CN112081813A (en) | 2020-09-28 | 2020-09-28 | Mounting structure of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112081813A true CN112081813A (en) | 2020-12-15 |
Family
ID=73738458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011045714.6A Pending CN112081813A (en) | 2020-09-28 | 2020-09-28 | Mounting structure of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112081813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483025A (en) * | 2021-07-15 | 2021-10-08 | 南京华能冶金机械制造有限公司 | Novel bearing seat with anti-rotation structure |
-
2020
- 2020-09-28 CN CN202011045714.6A patent/CN112081813A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483025A (en) * | 2021-07-15 | 2021-10-08 | 南京华能冶金机械制造有限公司 | Novel bearing seat with anti-rotation structure |
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