CN112240393A - Shaft body sealing device and method for high-rotating-speed, high-jumping and high-vibration equipment - Google Patents
Shaft body sealing device and method for high-rotating-speed, high-jumping and high-vibration equipment Download PDFInfo
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- CN112240393A CN112240393A CN202011347809.3A CN202011347809A CN112240393A CN 112240393 A CN112240393 A CN 112240393A CN 202011347809 A CN202011347809 A CN 202011347809A CN 112240393 A CN112240393 A CN 112240393A
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- oil
- labyrinth
- oil seal
- transmission shaft
- slinger
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
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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
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a shaft body sealing device and a shaft body sealing method for high-rotating-speed, high-bounce and high-vibration equipment, wherein the shaft body sealing device comprises a transmission shaft arranged on an oil tank, a labyrinth combined structure is sleeved on the transmission shaft, and the labyrinth combined structure consists of a labyrinth oil slinger and an oil seal seat which is in butt joint with the labyrinth oil slinger; a V-shaped sealing ring is arranged in the labyrinth combined structure; an oil seal cavity is arranged in the oil seal seat, and an oil seal is arranged in the oil seal cavity; the labyrinth oil slinger is fixedly connected with the axial seal of the transmission shaft, and the oil seal seat is fixedly connected with the plane seal of the side plate of the oil tank. The invention utilizes the labyrinth oil slinger to throw oil, the V-shaped sealing ring to block oil, the two layers of oil seals to seal oil and the filling lubricating grease to separate oil to form multi-level and omnibearing sealing, has good sealing effect, reduces the use risk of equipment and enhances the control of the operation process.
Description
Technical Field
The invention relates to a shaft body sealing structure and method of high-rotation-speed, high-bounce and high-vibration equipment lubricated by thin oil, and belongs to the technical field of sealing of mechanical equipment.
Background
At present, when a vibrating device runs, a whole sealing device must run in an environment with high rotating speed, high bounce, high vibration and alternate deformation along with the device according to working conditions. Due to the operation characteristics of the product, the sealing device can break and leak oil when used for about 100 hours, so that the sealing problem is frequent.
In order to solve the problem of shaft body sealing of the vibration equipment, special sealing devices specially made by foreign well-known manufacturers are mostly used, and a good sealing effect can be achieved. But the cost of the imported sealing element is high, the sealing element needs to be customized, the arrival period is long, a certain order quantity is required, and the sealing element needs to be replaced; the special sealing device is specially made by a foreign famous manufacturer, the two parties are inconvenient to communicate, field maintenance personnel require professional training, the use environment requirement is strict, the maintenance cost is high, and the comprehensiveness and the timeliness are not enough.
Disclosure of Invention
In view of the above, the present invention is to provide a shaft body sealing device and method for high-speed, high-bounce and high-vibration equipment, which can overcome the disadvantages of the prior art.
The purpose of the invention is realized by the following technical scheme:
a shaft body sealing device of high-rotating-speed, high-bounce and high-vibration equipment comprises a transmission shaft arranged on an oil tank, wherein a labyrinth combined structure is sleeved on the transmission shaft and consists of a labyrinth oil slinger and an oil seal seat which is in butt joint with the labyrinth oil slinger; a V-shaped sealing ring is arranged in the labyrinth combined structure; an oil seal cavity is arranged in the oil seal seat, and an oil seal is arranged in the oil seal cavity; the labyrinth oil slinger is fixedly connected with the axial seal of the transmission shaft, and the oil seal seat is fixedly connected with the plane seal of the side plate of the oil tank.
An axial sealing ring is arranged between the labyrinth oil slinger and the transmission shaft and fixedly connected together through a set screw, the oil seal seat is abutted against the outer surface of the oil tank side plate and is fastened on the oil tank side plate through a bolt, and an end face sealing ring is arranged on the abutting surface.
The outer side of the end face of the labyrinth oil slinger is provided with a tooth-shaped labyrinth structure and a mounting groove for placing a V-shaped sealing ring, the inner side of the end face of the oil seal seat is provided with a tooth shape matched with the tooth-shaped labyrinth structure, and the tooth-shaped labyrinth structure and the tooth shape are butted to form a labyrinth combined groove of a labyrinth combined structure.
The oil seals arranged in the oil seal cavity are arranged in a pair, and a spacer bush is arranged between the two oil seals.
Lubricating grease is arranged in the labyrinth combination groove, the mounting groove of the V-shaped sealing ring and the oil seal cavity of the oil seal seat.
The oil seal seat is provided with an oil filling port communicated to the oil seal cavity, and the oil filling port is provided with an oil cup; a grease groove and a plurality of oil inlet through holes are formed in the middle of the outer circumference of the spacer bush, so that lubricating grease injected from the oil cup enters the oil seal cavity through the oil inlet through holes of the spacer bush.
The outer side of the oil seal seat is provided with a mounting opening communicated with the oil seal cavity, and the outer side of the mounting opening is fixedly connected with a pressing plate through a pressing bolt, so that the oil seal is arranged in the oil seal cavity from the mounting opening and is fixedly connected with the pressing plate in a sealing manner.
The inner wall of the oil tank side plate is provided with a fixing ring corresponding to the position of the transmission shaft, and the oil tank side plate and the fixing ring are provided with screw hole groups communicated with each other, so that the oil seal seat is fastened on the oil tank side plate and the fixing ring through bolts.
A shaft body sealing method of high-rotating-speed, high-bounce and high-vibration equipment comprises the following steps:
step s1, aligning the mounting part of the oil tank and the transmission shaft in advance, processing the oil tank and the mounting part thereof according to the process requirement, and then mounting the transmission shaft;
step s2, correspondingly mounting the labyrinth combination structure, the V-shaped sealing ring, the axial sealing ring and the end face sealing ring on the transmission shaft; after the oil seal seat is installed and fixed on the oil tank, the distance between the labyrinth oil slinger and the oil seal seat is adjusted to form a labyrinth combination groove, and the labyrinth oil slinger and the transmission shaft are fixed by a set screw, so that the labyrinth oil slinger and the transmission shaft spin at the same speed and high speed around the axial center;
lubricating grease is filled in the labyrinth combination groove and the V-shaped sealing ring mounting groove in advance during mounting;
and step s3, mounting an oil seal from the mounting port on the outer side of the oil seal seat, fixedly connecting the oil seal with a pressing plate in a sealing manner, and filling lubricating grease into the cavity of the oil seal from the oil cup on the oil seal seat.
In the sealing method described above, the sealing material,
in step s1, the mounting part of the oil tank comprises a mounting hole on an oil tank side plate and a fixing ring which is arranged on the inner wall of the oil tank side plate and is coaxial with the mounting hole, the fixing ring is aligned with the transmission shaft in advance, and then the fixing ring is fixedly connected with the oil tank in a welding mode;
in step s2, adjusting the distance between the labyrinth oil slinger and the oil seal seat to be 20-25 mm;
in step s3, the lip of the oil seal remains intact; and lubricating grease is injected into the oil seal cavity from the oil cup at regular time according to the use condition of the equipment.
Compared with the prior art, the shaft body sealing device and method of the high-rotating-speed, high-jumping and high-vibration equipment disclosed by the invention comprise a transmission shaft arranged on an oil tank, wherein a labyrinth combined structure is sleeved on the transmission shaft and consists of a labyrinth oil slinger and an oil seal seat in butt joint and sleeving with the labyrinth oil slinger, a tooth-shaped labyrinth structure and an installation groove are arranged on the outer side of the end surface of the labyrinth oil slinger, a tooth shape matched with the tooth-shaped labyrinth structure is arranged on the inner side of the end surface of the oil seal seat, and the tooth-shaped labyrinth structure and the tooth shape are in butt joint to form the labyrinth combined groove of the labyrinth combined structure; a V-shaped sealing ring is arranged in the mounting groove of the labyrinth oil slinger; an oil seal cavity is arranged in the oil seal seat, and an oil seal is arranged in the oil seal cavity; the labyrinth oil slinger is fixedly connected with the axial seal of the transmission shaft, and the oil seal seat is fixedly connected with the plane seal of the side plate of the oil tank.
When the labyrinth type oil slinger runs, the labyrinth type oil slinger and the transmission shaft spin around the axial center at the same speed and high speed, and a first sealing effect can be achieved through the labyrinth combination groove;
in the operation process, a little leaked oil at the labyrinth combined groove can be blocked at the V-shaped sealing ring, so that a secondary sealing effect is achieved;
in order to ensure the surplus of sealing, two skeleton oil seals are arranged in the oil seal seat to achieve the third sealing;
meanwhile, specified lubricating grease is fully coated in the labyrinth combination groove, the V-shaped sealing ring and the oil seal cavity, and sealing is carried out again.
The invention has the beneficial effects that:
(1) based on the production field condition, the comparison and installation are carried out, so that the applicability is strong, the accuracy is high, and the adjustment is convenient and quick;
(2) the labyrinth oil slinger is used for slinging oil, the V-shaped sealing ring is used for blocking oil, the two layers of framework oil seals are used for sealing oil, and lubricating grease is filled for oil separation to form multi-level and all-directional sealing, so that the sealing effect is good;
(3) the structure is simple, the whole material is common, the purchase is convenient, the processing is simple, the cost is low, the implementation is easy, and the implementation can be realized at any time;
(4) the requirement on operators is low, the operation convenience is high, the disassembly, the replacement and the maintenance are convenient, and a large amount of labor and time cost are saved;
(5) the applicability is wide, and the device can be suitable for any cantilever type transmission structure, a structure with higher transmission shaft rigidity requirement and various high-rotating-speed, high-jumping and high-vibration devices;
(6) the spindle can be completely covered in a sealed mode, dead corners are not left, the use risk of equipment is reduced, and the control of the operation process is enhanced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a first structural schematic diagram of the present invention.
Fig. 2 is a second structural schematic diagram of the present invention.
Fig. 3 is a schematic structural view of the labyrinth oil slinger 3 in fig. 1.
Fig. 4 is a schematic structural diagram of the oil seal seat 4 in fig. 1.
Fig. 5 is a schematic structural view of the spacer 10 in fig. 1.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
As shown in fig. 1-5, a shaft body sealing device of high-speed, high-bounce and high-vibration equipment comprises a transmission shaft 2 arranged on an oil tank 1, wherein a labyrinth combination structure is sleeved on the transmission shaft 2 and consists of a labyrinth oil slinger 3 and an oil seal seat 4 in butt joint and sleeving with the labyrinth oil slinger; a V-shaped sealing ring 5 is arranged in the labyrinth combined structure; an oil seal cavity 401 is arranged in the oil seal seat 4, and an oil seal 6 is arranged in the oil seal cavity; the labyrinth oil slinger 3 is fixedly connected with the transmission shaft 2 in an axial sealing mode, and the oil seal seat 4 is fixedly connected with the side plate plane of the oil tank 1 in a sealing mode.
An axial sealing ring 7 is arranged between the labyrinth oil slinger 2 and the transmission shaft 1 and fixedly connected together through a set screw 8, the oil seal seat 4 is abutted against the outer surface of the side plate of the oil tank 1 and is fastened on the side plate of the oil tank 1 through bolts, and an end face sealing ring 9 is arranged on the abutting surface.
The outer side of the end face of the labyrinth oil slinger 3 is provided with a tooth-shaped labyrinth structure 301 and a mounting groove 302 for placing the V-shaped sealing ring 5, the inner side of the end face of the oil seal seat 4 is provided with a tooth shape 402 matched with the tooth-shaped labyrinth structure, and the tooth-shaped labyrinth structure 301 of the labyrinth oil slinger and the tooth shape 402 of the oil seal seat are in butt joint to form a labyrinth combination groove of a labyrinth combination structure.
All be equipped with lubricating grease in labyrinth combination groove, V type sealing washer 5's mounting groove 302, and in the oil blanket cavity 401 of oil blanket seat, not only can improve transmission stability, reduce the friction, can realize resealing moreover, sealed effect is better.
The oil seals 6 arranged in the oil seal cavity 401 are arranged in a pair, and a spacer 10 is arranged between the two oil seals 6. A grease groove 1001 is formed in the middle of the outer circumference of the spacer 10, so that lubricating grease can be stored conveniently.
An oil filling port communicated to the oil seal cavity 401 is formed in the oil seal seat 4, and an oil cup 11 is arranged on the oil filling port; a plurality of oil inlet through holes 1002 are formed in the outer circumference of the spacer 10, and lubricating grease injected from the oil cup 11 enters the oil seal cavity 401 through the oil inlet through holes 1002 of the spacer, so that oiling is realized. The oil inlet through holes 1002 are at least four annularly and uniformly distributed in the grease groove 1001 of the spacer bush.
The oil seal 6 is a framework oil seal.
The outer side of the oil seal seat 4 is provided with a mounting opening communicated with the oil seal cavity 401, and the outer side of the mounting opening is fixedly connected with a pressing plate 12 through a pressing bolt. During installation, the oil seal 6 is arranged in the oil seal cavity 401 from the installation opening and is fixedly connected in a sealing mode through the pressing plate 12, installation is convenient and fast, and the oil seal 6 is not prone to being damaged.
The inner wall of the side plate of the oil tank 1 is provided with a fixing ring 13 corresponding to the position of the transmission shaft 2, and the side plate of the oil tank 1 and the fixing ring 13 are provided with screw hole groups communicated with each other, so that the oil seal seat 4 is fastened on the side plate of the oil tank 1 and the fixing ring through bolts, and the connection strength and the rigidity can be effectively improved by adding the fixing ring, and the tightness of a sealing part is ensured.
The shaft body sealing method of the high-rotating-speed, high-jumping and high-vibration equipment based on the sealing device comprises the following steps of:
step s1, aligning the mounting part of the oil tank 1 with the position of the transmission shaft 2 in advance, processing the oil tank 1 and the mounting part thereof according to the process requirement, and mounting the transmission shaft 2;
the mounting part of the oil tank 1 comprises a mounting hole on a side plate of the oil tank and a fixing ring 13 which is arranged on the inner wall of the side plate of the oil tank 1 and is coaxial with the mounting hole, and the fixing ring 13 is aligned with the transmission shaft 2 in advance and is fixedly connected with the oil tank 1 in a welding mode;
when the fixing ring 13 is welded, the inner hole and the outer circle are fully welded, and welding leakage and insufficient welding are avoided.
Step s2, correspondingly installing the labyrinth combination structure, the V-shaped sealing ring 5, the axial sealing ring 7 and the end face sealing ring 9 on the transmission shaft 2; after the oil seal seat 4 is installed and fixed on the oil tank 1, the distance between the labyrinth oil slinger 1 and the oil seal seat 4 is adjusted to form a labyrinth combination groove, and the labyrinth oil slinger 3 and the transmission shaft 2 are fixed by a set screw 8, so that the labyrinth oil slinger 2 and the transmission shaft 2 spin at the same speed and high speed around the axial center;
in step s2, adjusting the distance between the labyrinth oil slinger 1 and the oil seal seat 4 to be 20-25 mm;
lubricating grease is filled in the labyrinth combination groove and the V-shaped sealing ring mounting groove 302 in advance during mounting.
Step s3, installing an oil seal 6 at an installation opening on the outer side of the oil seal seat 4, sealing and fixedly connecting the oil seal with a pressure plate 12, and filling lubricating grease into an oil seal cavity 401 from an oil cup 11 on the oil seal seat 4;
in step s3, the lip of the oil seal 6 remains intact;
lubricating grease is injected into the oil seal cavity 401 from the oil cup 11 at regular time according to the use condition of the equipment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention without departing from the technical spirit of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a high rotational speed, high axis body sealing device who beats, high vibration equipment, is including setting up transmission shaft (2) on oil tank (1), its characterized in that: a labyrinth combined structure is sleeved on the transmission shaft (2), and the labyrinth combined structure consists of a labyrinth oil slinger (3) and an oil seal seat (4) which is in butt joint with the labyrinth oil slinger; a V-shaped sealing ring (5) is arranged in the labyrinth combined structure; an oil seal cavity (401) is arranged in the oil seal seat (4), and an oil seal (6) is arranged in the oil seal cavity; the labyrinth oil slinger (3) is fixedly connected with the transmission shaft (2) in an axial sealing manner, and the oil seal seat (4) is fixedly connected with the side plate plane seal of the oil tank (1).
2. The high speed, high bounce, high vibration apparatus shaft body seal arrangement of claim 1, wherein: an axial sealing ring (7) is arranged between the labyrinth oil slinger (2) and the transmission shaft (1), the labyrinth oil slinger and the transmission shaft are fixedly connected together through a set screw (8), the oil seal seat (4) is abutted to the outer surface of a side plate of the oil tank (1) and is fastened on the side plate of the oil tank (1) through bolts, and an end face sealing ring (9) is arranged on the abutting surface.
3. The high speed, high bounce, high vibration apparatus shaft body seal arrangement of claim 2, wherein: the labyrinth oil slinger is characterized in that a tooth-shaped labyrinth structure (301) and a mounting groove (302) for placing a V-shaped sealing ring (5) are arranged on the outer side of the end face of the labyrinth oil slinger (3), a tooth form (402) matched with the tooth-shaped labyrinth structure is arranged on the inner side of the end face of the oil seal seat (4), and the tooth-shaped labyrinth structure (301) and the tooth form (402) are in butt joint to form a labyrinth combination groove of a labyrinth combination structure.
4. The high speed, high bounce, high vibration apparatus shaft body seal arrangement of claim 3, wherein: the oil seals (6) arranged in the oil seal cavity (401) are arranged in a pair, and a spacer bush (10) is arranged between the two oil seals (6).
5. The high speed, high bounce, high vibration apparatus shaft body seal arrangement of claim 4, wherein: lubricating grease is arranged in the labyrinth combination groove, the mounting groove (302) of the V-shaped sealing ring (5) and an oil seal cavity (401) of the oil seal seat.
6. The high speed, high bounce, high vibration apparatus shaft body seal arrangement of claim 5, wherein: an oil filling port communicated to the oil seal cavity (401) is arranged on the oil seal seat (4), and an oil cup (11) is arranged on the oil filling port; a grease groove (1001) and a plurality of oil inlet through holes (1002) are formed in the middle of the outer circumference of the spacer sleeve (10), so that lubricating grease injected from the oil cup (11) enters the oil seal cavity (401) through the oil inlet through holes (1002) of the spacer sleeve.
7. The high speed, high bounce, high vibration apparatus shaft body seal arrangement of claim 5, wherein: the outer side of the oil seal seat (4) is provided with a mounting port communicated with the oil seal cavity (401), and the outer side of the mounting port is fixedly connected with a pressing plate (12) through a pressing bolt, so that an oil seal (6) is loaded into the oil seal cavity (401) from the mounting port and is fixedly connected with the pressing plate (12) in a sealing manner.
8. A high speed, high bounce, high vibration apparatus shaft body seal assembly as claimed in any one of claims 1 to 7, wherein: the inner wall of the side plate of the oil tank (1) is provided with a fixing ring (13) corresponding to the position of the transmission shaft (2), and the side plate of the oil tank (1) and the fixing ring (13) are provided with screw hole groups communicated with each other, so that the oil seal seat (4) is fastened on the side plate of the oil tank (1) and the fixing ring through bolts.
9. A shaft body sealing method of high-rotating-speed, high-bounce and high-vibration equipment is characterized by comprising the following steps of:
step s1, aligning the mounting part of the oil tank (1) with the position of the transmission shaft (2) in advance, processing the oil tank (1) and the mounting part thereof according to the process requirement, and then mounting the transmission shaft (2);
step s2, correspondingly installing the labyrinth combined structure, the V-shaped sealing ring (5), the axial sealing ring (7) and the end face sealing ring (9) on the transmission shaft (2); after the oil seal seat (4) is installed and fixed on the oil tank (1), the distance between the labyrinth oil slinger (1) and the oil seal seat (4) is adjusted to form a labyrinth combined groove, and the labyrinth oil slinger (3) and the transmission shaft (2) are fixed by a set screw (8) so that the labyrinth oil slinger (2) and the transmission shaft (2) can spin around the axial center at the same speed and at a high speed;
lubricating grease is filled in the labyrinth combination groove and the V-shaped sealing ring mounting groove (302) in advance during mounting;
and step s3, installing an oil seal (6) at an installation opening on the outer side of the oil seal seat (4), fixedly connecting the oil seal with a pressure plate (12) in a sealing manner, and filling lubricating grease into the oil seal cavity (401) from an oil cup (11) on the oil seal seat (4).
10. The method of claim 9 for sealing a shaft body of a high speed, high bounce, high vibration machine, wherein:
in the step s1, the mounting part of the oil tank (1) comprises a mounting hole on an oil tank side plate and a fixing ring (13) which is arranged on the inner wall of the oil tank (1) side plate and is coaxial with the mounting hole, the fixing ring (13) is aligned with the transmission shaft (2) in advance, and then is fixedly connected with the oil tank (1) in a welding mode;
in step s2, adjusting the distance between the labyrinth oil slinger (1) and the oil seal seat (4) to be 20-25 mm;
in step s3, the lip of the oil seal (6) remains intact; and lubricating grease is injected into the oil seal cavity (401) from the oil cup (11) at regular time according to the use condition of the equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347809.3A CN112240393A (en) | 2020-11-26 | 2020-11-26 | Shaft body sealing device and method for high-rotating-speed, high-jumping and high-vibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347809.3A CN112240393A (en) | 2020-11-26 | 2020-11-26 | Shaft body sealing device and method for high-rotating-speed, high-jumping and high-vibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112240393A true CN112240393A (en) | 2021-01-19 |
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ID=74175390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011347809.3A Pending CN112240393A (en) | 2020-11-26 | 2020-11-26 | Shaft body sealing device and method for high-rotating-speed, high-jumping and high-vibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112240393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137370A (en) * | 2021-04-27 | 2021-07-20 | 浙江真空设备集团有限公司 | Sealing structure of vacuum pump |
-
2020
- 2020-11-26 CN CN202011347809.3A patent/CN112240393A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137370A (en) * | 2021-04-27 | 2021-07-20 | 浙江真空设备集团有限公司 | Sealing structure of vacuum pump |
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