CN213807773U - Pressure sealing type turbine oil seal cover - Google Patents
Pressure sealing type turbine oil seal cover Download PDFInfo
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- CN213807773U CN213807773U CN202022696351.4U CN202022696351U CN213807773U CN 213807773 U CN213807773 U CN 213807773U CN 202022696351 U CN202022696351 U CN 202022696351U CN 213807773 U CN213807773 U CN 213807773U
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- oil seal
- seal cover
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- support
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Abstract
The utility model relates to a pressure seal formula turbine oil seal lid, including the oil seal lid body, be provided with an annular connection chamber inside the oil seal lid body, the middle part and the turbine shaft connecting hole middle part intercommunication in connection chamber are provided with the rotation support mechanism in connecting the intracavity, the rotation support mechanism includes a plurality of supporting components that are the annular array and arrange, each group of supporting components includes an curved backup pad, set up the division board of nylon material between the adjacent backup pad, the axial both ends of backup pad and the axial both ends inner wall sliding seal contact in connection chamber, the fan-shaped outer lane of support reed is fixed in on the backup pad, the fan-shaped inner circle of support reed is provided with a bending portion, the bending outside of bending portion and the turbine shaft surface contact; a plurality of oil penetration holes are arranged on the wall surface of the supporting plate in an array corresponding to the positions between the supporting reeds; the end part of the positioning bolt is in contact with the outer surface of the supporting plate, and the bending part of the supporting reed is pressed to the surface of the turbine shaft under the pushing action of the positioning bolt.
Description
Technical Field
The utility model relates to a pressure seal formula turbine oil seal lid belongs to turbine accessory field.
Background
The turbine belongs to equipment with high internal pressure and high rotating speed, so the lubricating requirement on a turbine rotating shaft is high, the conventional mechanism generally adopts a high-speed bearing or a lubricating oil circulating mechanism arranged at the front end of the rotating shaft to infiltrate and rotatably support the rotating shaft, but after the high-speed bearing is subjected to high temperature, lubricating grease is easy to melt, and is simultaneously subjected to high pressure in the turbine, the lubricating grease is easy to extrude from the front end of a turbine shell, and the circulating lubricating mechanism only infiltrates the surface of the rotating shaft or the rotating bearing and is still easily influenced by the internal pressure of the turbine, so that the lubricating liquid cannot be fully lubricated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the technical problem that a lubricating mechanism in the prior art is poor in pressure resistance is solved, and the pressure sealing type turbine oil sealing cover is provided.
The utility model provides a technical scheme that its technical problem adopted is:
a pressure sealing type turbine oil seal cover comprises an oil seal cover body, wherein a sealing part is arranged at one end of the oil seal cover body and is connected to the inner wall of a turbine shaft connecting hole through a sealing ring; the middle part of the oil seal cover is provided with a rotating hole, the middle part of the rotating hole is rotatably connected with a turbine shaft, an annular connecting cavity is arranged inside the oil seal cover body, the middle part of the connecting cavity is communicated with the middle part of a connecting hole of the turbine shaft, a rotating support mechanism is arranged in the connecting cavity and comprises a plurality of support assemblies which are arranged in an annular array, each group of support assemblies comprises an arc-shaped support plate, a partition plate made of nylon is arranged between every two adjacent support plates, the two axial ends of each support plate are in sliding sealing contact with the inner walls of the two axial ends of the connecting cavity, a plurality of fan-shaped support reeds are arranged on the support plates in a linear array mode, fan-shaped outer rings of the support reeds are fixed on the support plates, fan-shaped inner rings of the support reeds are provided with a bending part, and the bending outer sides of the bending parts are in surface contact with the turbine shaft; a retainer made of nylon material is arranged between the adjacent supporting reeds, and two ends of the retainer are respectively provided with an embedding groove for embedding the supporting reeds; a plurality of oil penetration holes are arranged on the wall surface of the supporting plate in an array corresponding to the positions between the supporting reeds; the rotary supporting mechanism further comprises a positioning bolt arranged along the radial axis of the oil seal cover body, the positioning bolt penetrates through the oil seal cover body, the end part of the positioning bolt is in contact with the outer surface of the supporting plate, the bent part of the supporting reed is pressed onto the surface of the turbine shaft under the pushing action of the positioning bolt, and the supporting plate and the inner wall of the connecting cavity form a certain oil discharge gap under the pushing action of the positioning bolt; the oil seal cover comprises an oil seal cover body and is characterized in that an oil supply hole and an oil discharge hole which are communicated with an oil discharge gap are further formed in the oil seal cover body, and the oil supply hole and the oil discharge hole are arranged symmetrically relative to the center of the oil seal cover body.
As a further improvement of the utility model, a reducing cover has been cup jointed on the turbine shaft, is provided with the sliding support cover of copper on the surface of reducing cover, is provided with a plurality of annular slip recesses at the surperficial linear array of sliding support cover, the portion of bending of supporting the reed is embedded into in the slip recess.
As a further improvement, the front end of the oil seal cover body is provided with an access cover, and the front end of the oil seal cover body is provided with an access groove for installing the access cover, the front end of the connection cavity is communicated with the access groove, and a step groove is arranged on the periphery of the access groove, and a protruding ring embedded into the step groove is arranged on the periphery of the access cover and passes through the bolt and the oil seal cover body fixed connection.
As a further improvement, the utility model discloses a still be provided with a set of pressure relief pipe that sets up along the radial axis of oil blanket lid body in the oil blanket lid is originally internal, tip is provided with a hollow switching pipe before the oil blanket lid body, the switching pipe outer wall passes through threaded fixation to the oil blanket lid originally internally, the front end of switching pipe extends to and connects the chamber tip lateral wall, the front end of switching pipe is provided with the through-hole A that switches on with the hollow position in inside, be provided with the through-hole B that is used for being connected with the pressure relief pipe at the middle part wall of switching pipe.
As a further improvement, a plurality of embedded grooves are processed in the supporting plate, and the end parts of the supporting reeds are embedded into the embedded grooves through interference fit.
As a further improvement of the utility model, the arc inner circle tip array of the support reed is provided with the deformation opening of a plurality of V-arrangements.
The utility model has the advantages that:
1. the utility model discloses utilize the support reed structure that the array set up, compress tightly in the turbine shaft surface through positioning bolt, form in close contact with, the support reed that the array set up simultaneously constitutes a plurality of high-pressure lubrication clearance, and flow resistance is bigger between, so can reduce as far as by the high pressure influence of the inside output of turbine, guarantee stable lubricated effect again simultaneously, the copper sheet structure that this structure utilized the array to set up simultaneously realizes the slip support, and the heat dispersion at lubricated liquid and friction position is more excellent.
2. The utility model discloses a sliding support cover replaces the turbine shaft surface to contact with the support reed, compares in the turbine shaft that carbon steel made, and copper sliding support cover surface hardness is lower, can effectively reduce the wearing and tearing that support the reed tip, promotes the life-span of whole structure.
3. The pressure of the lubricating oil of front end can be released to the pressure release pipe, prevents that the inside too big hydraulic oil that leads to of turbine shell from leaking, causes stained.
4. Compared with a welding structure, the inserting structure of the embedding groove is easy to maintain and not easy to break due to stress concentration.
5. The radian of the arc front end of the supporting reed can be changed to a certain degree by the deformation opening, so that the tight fit is ensured, and the lubrication between the supporting reed and the turbine shaft can be realized in an auxiliary manner.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the arrangement of the support spring.
In the figure: 1. an oil seal cover body; 2. rotating the hole; 3. a sealing part; 4. a turbine shaft; 5. a support plate; 6. an oil-bleeding hole; 7. a bending part; 8. a reducing sleeve; 9. a sliding support sleeve; 10. a sliding groove; 11. an oil supply hole; 12. an oil drain hole; 13. an oil discharge gap; 14. a pressure relief pipe; 15. a transfer tube; 16. an access cover; 17. a raised ring; 18. a support spring plate; 19. a deformation opening; 20. a partition plate.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the utility model relates to a pressure sealing type turbine oil seal cover, which comprises an oil seal cover body, wherein one end of the oil seal cover body is provided with a sealing part, and the sealing part is connected to the inner wall of a turbine shaft connecting hole through a sealing ring; the middle part of the oil seal cover is provided with a rotary hole, the middle part of the rotary hole is rotationally connected with a turbine shaft, an annular connecting cavity is arranged inside the oil seal cover body, the middle part of the connecting cavity is communicated with the middle part of a connecting hole of the turbine shaft, a rotary supporting mechanism is arranged in the connecting cavity and comprises a plurality of supporting components which are arranged in an annular array, as shown in figure 2, each group of supporting components comprises an arc-shaped supporting plate, a partition plate made of nylon material is arranged between every two adjacent supporting plates, the axial two ends of each supporting plate are in sliding sealing contact with the inner walls of the axial two ends of the connecting cavity, a plurality of fan-shaped supporting reeds are arranged on the supporting plates in a linear array manner, a plurality of embedding grooves are processed on the supporting plates, the end parts of the supporting reeds are embedded into the embedding grooves in an interference fit manner, the fan-shaped outer rings of the supporting reeds are fixed on the supporting plates, and the fan-shaped inner rings of the supporting reeds are provided with a bending part, the turbine shaft is sleeved with a reducing sleeve, a copper sliding support sleeve is arranged on the surface of the reducing sleeve, a plurality of annular sliding grooves are arranged on the surface of the sliding support sleeve in a linear array mode, the bending parts of the support reeds are embedded into the sliding grooves, and a plurality of V-shaped deformation openings are arranged on the end parts of the arc-shaped inner rings of the support reeds corresponding to the contact parts of the sliding grooves in an array mode; a retainer made of nylon material is arranged between the adjacent supporting reeds, and two ends of the retainer are respectively provided with an embedding groove for embedding the supporting reeds; a plurality of oil penetration holes are arranged on the wall surface of the supporting plate in an array corresponding to the positions between the supporting reeds; the rotary supporting mechanism further comprises a positioning bolt arranged along the radial axis of the oil seal cover body, the positioning bolt penetrates through the oil seal cover body, the end part of the positioning bolt is in contact with the outer surface of the supporting plate, the bent part of the supporting reed is pressed onto the surface of the turbine shaft under the pushing action of the positioning bolt, and the supporting plate and the inner wall of the connecting cavity form a certain oil discharge gap under the pushing action of the positioning bolt; the oil seal cover comprises an oil seal cover body and is characterized in that an oil supply hole and an oil discharge hole which are communicated with an oil discharge gap are further formed in the oil seal cover body, and the oil supply hole and the oil discharge hole are arranged symmetrically relative to the center of the oil seal cover body.
The front end of the oil seal cover body is provided with an access cover, the front end of the oil seal cover body is provided with an access groove for installing the access cover, the front end of the connecting cavity is communicated with the access groove, the periphery of the access groove is provided with a step groove, the periphery of the access cover is provided with a convex ring embedded into the step groove, and the convex ring is fixedly connected with the oil seal cover body through a bolt; the position that sets up that corresponds the access cover in this body of oil blanket lid still is provided with a set of pressure relief pipe that sets up along the radial axis of oil blanket lid body, the pressure relief pipe runs through access slot wall and access cover, the preceding tip at the access cover is provided with a hollow switching pipe, the switching pipe outer wall passes through the threaded fixation to this internally of oil blanket lid, the front end of switching pipe extends to and connects chamber tip lateral wall, the front end of switching pipe is provided with the through-hole A that switches on with inside hollow position, be provided with the through-hole B that is used for being connected with the pressure relief pipe at the middle part wall of switching pipe.
When the structure is used, the structure is arranged on a turbine shell through the sealing part, then an engine oil circulating pump is connected to the oil supply hole and the oil discharge hole, so that engine oil circularly flows, and meanwhile, the pressure relief pipe is connected to an engine oil bottom shell through the pressure relief valve; the engine oil that the engine oil circulating pump was gone into enters into between each support reed through oil discharge clearance and oil-penetrating hole to constitute an annular lubrication clearance that is full of engine oil between the support reed, engine oil permeates the clearance between the deformation opening through the pressure infiltration of engine oil pump, and lubricate the contact position between fold bending portion and the slip recess, engine oil after the lubrication is discharged through the oil discharge hole, and partly because of turbine internal pressure, pass the backup pad and connect the engine oil between the chamber wall, after oozing and reaching certain pressure, can discharge through the pressure release pipe, prevent that engine oil from permeating to the turbine shaft, lead to the pollution in engine compartment.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A pressure sealing type turbine oil seal cover comprises an oil seal cover body, wherein a sealing part is arranged at one end of the oil seal cover body and is connected to the inner wall of a turbine shaft connecting hole through a sealing ring; the middle part of oil seal lid is provided with rotatory hole, and rotatory hole middle part is rotated and is connected turbine shaft, characterized by: an annular connecting cavity is formed in the oil seal cover body, the middle of the connecting cavity is communicated with the middle of a turbine shaft connecting hole, a rotating support mechanism is arranged in the connecting cavity and comprises a plurality of support assemblies which are arranged in an annular array, each group of support assemblies comprises an arc-shaped support plate, a nylon partition plate is arranged between every two adjacent support plates, two axial ends of each support plate are in sliding sealing contact with the inner walls of two axial ends of the connecting cavity, a plurality of fan-shaped support reeds are arranged on the support plates in a linear array mode, fan-shaped outer rings of the support reeds are fixed on the support plates, fan-shaped inner rings of the support reeds are provided with bending portions, and the bending outer sides of the bending portions are in surface contact with the turbine shaft; a retainer made of nylon material is arranged between the adjacent supporting reeds, and two ends of the retainer are respectively provided with an embedding groove for embedding the supporting reeds; a plurality of oil penetration holes are arranged on the wall surface of the supporting plate in an array corresponding to the positions between the supporting reeds; the rotary supporting mechanism further comprises a positioning bolt arranged along the radial axis of the oil seal cover body, the positioning bolt penetrates through the oil seal cover body, the end part of the positioning bolt is in contact with the outer surface of the supporting plate, the bent part of the supporting reed is pressed onto the surface of the turbine shaft under the pushing action of the positioning bolt, and the supporting plate and the inner wall of the connecting cavity form a certain oil discharge gap under the pushing action of the positioning bolt; the oil seal cover comprises an oil seal cover body and is characterized in that an oil supply hole and an oil discharge hole which are communicated with an oil discharge gap are further formed in the oil seal cover body, and the oil supply hole and the oil discharge hole are arranged symmetrically relative to the center of the oil seal cover body.
2. A pressure-sealing type turbine oil seal cover as claimed in claim 1, wherein: the turbine shaft is sleeved with a reducing sleeve, a copper sliding support sleeve is arranged on the surface of the reducing sleeve, a plurality of annular sliding grooves are formed in the surface of the sliding support sleeve in a linear array mode, and the bending portion of the support reed is embedded into the sliding grooves.
3. A pressure-sealing type turbine oil seal cover as claimed in claim 1, wherein: the oil seal cover is characterized in that the front end of the oil seal cover body is provided with an access cover, the front end of the oil seal cover body is provided with an access groove for installing the access cover, the front end of the connecting cavity is communicated with the access groove, the periphery of the access groove is provided with a step groove, the periphery of the access cover is provided with a protruding ring embedded into the step groove, and the protruding ring is fixedly connected with the oil seal cover body through a bolt.
4. A pressure-sealing type turbine oil seal cap as claimed in claim 3, wherein: still be provided with a set of pressure release pipe that sets up along the radial axis of oil seal lid body in the oil seal lid body, be provided with a hollow switching pipe at the front end of oil seal lid body, the switching pipe outer wall passes through the threaded fixation to the oil seal lid in this, the front end of switching pipe extends to and connects chamber tip lateral wall, the front end of switching pipe is provided with the through-hole A that switches on with inside hollow position, be provided with the through-hole B that is used for being connected with the pressure release pipe at the middle part wall of switching pipe.
5. A pressure-sealing type turbine oil seal cover as claimed in claim 1, wherein: a plurality of embedding grooves are processed on the supporting plate, and the end parts of the supporting reeds are embedded into the embedding grooves in an interference fit mode.
6. A pressure-sealing type turbine oil seal cover as claimed in claim 1, wherein: and a plurality of V-shaped deformation openings are arranged at the end part of the arc-shaped inner ring of the supporting reed in an array manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022696351.4U CN213807773U (en) | 2020-11-19 | 2020-11-19 | Pressure sealing type turbine oil seal cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022696351.4U CN213807773U (en) | 2020-11-19 | 2020-11-19 | Pressure sealing type turbine oil seal cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213807773U true CN213807773U (en) | 2021-07-27 |
Family
ID=76936407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022696351.4U Active CN213807773U (en) | 2020-11-19 | 2020-11-19 | Pressure sealing type turbine oil seal cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213807773U (en) |
-
2020
- 2020-11-19 CN CN202022696351.4U patent/CN213807773U/en active Active
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