CN213270967U - Compound sealing device that seals of modularization high-speed gear box - Google Patents
Compound sealing device that seals of modularization high-speed gear box Download PDFInfo
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- CN213270967U CN213270967U CN202022160124.XU CN202022160124U CN213270967U CN 213270967 U CN213270967 U CN 213270967U CN 202022160124 U CN202022160124 U CN 202022160124U CN 213270967 U CN213270967 U CN 213270967U
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- baffle
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Abstract
The utility model relates to a compound sealing device that obturages of modularization high-speed gear box, include: the bearing outer ring seat is provided with a No. 2 oil return hole for connecting the inner cavity of the bearing outer ring seat with an oil way of the gear box; the bearing lubricating mechanism is used for lubricating the bearing; the combined type sealing baffle is used for sealing, the combined type sealing baffle comprises a plurality of layers of sealing plates, the sealing plates are matched with a high-speed rotating shaft to form a multi-tooth labyrinth sealing structure, a cavity is formed between every two adjacent layers of sealing plates, and the sealing plates are provided with No. 1 oil return holes used for communicating the cavity with the inner cavity of the bearing outer ring seat. The utility model adopts the modular design, the structure is simple, and the installation and the maintenance are convenient; the oil return function can ensure that the fluid can be fully and circularly diffused in the sealing cavity, and the cooling efficiency is improved, so that the abrasion of the sealing part is reduced, and the failure time of the oil seal is greatly prolonged; the combined type sealing baffle reduces the leakage loss between the rotating and the static phases and improves the sealing performance of the bearing cavity of the high-speed gear box.
Description
Technical Field
The utility model relates to a high-speed gear box technical field especially relates to a compound sealing device that obturages of modularization high-speed gear box.
Background
In the prior art, after the rotating speed of a rotating part of a high-speed gear box of equipment such as an aircraft engine, a gas turbine, a steam turbine and the like reaches a certain limit value, a sealing structure at the end part of an input/output shaft is in a high-temperature working environment due to overhigh rotating speed, and the problems that the temperature rise is intensified due to incapability of timely dispersing heat generated by friction, the abrasion is accelerated due to insufficient lubrication of a contact part, and an oil seal is damaged due to radial or axial float of the shaft during working exist, so that the failure time of the oil seal is greatly shortened.
Disclosure of Invention
The utility model discloses aim at solving prior art's not enough, and provide a compound sealing device that obturages of modularization high-speed gear box.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a composite sealing and sealing device for a modular high-speed gearbox comprises:
the bearing outer ring seat is provided with a 2# oil return hole for connecting the inner cavity of the bearing outer ring seat with an oil circuit of the gear box;
the bearing lubricating mechanism is used for lubricating the bearing and comprises a bearing lubricating oil path positioned in the bearing outer ring seat, the input end of the bearing lubricating oil path is connected with an oil pipe joint used for being connected with the oil path of the gearbox, and the output end of the bearing lubricating oil path is connected with an oil injection pipe used for injecting oil to the bearing;
the combined type sealing baffle is used for sealing, the combined type sealing baffle comprises a plurality of layers of sealing plates, the sealing plates are matched with a high-speed rotating shaft to form a multi-tooth labyrinth sealing structure, a cavity is formed between every two adjacent layers of sealing plates, and the sealing plates are provided with No. 1 oil return holes used for enabling two adjacent cavities and the cavities to be communicated with an inner cavity of a bearing outer ring seat.
Further, combined type sealing baffle includes two semicircular baffle units, is upper portion baffle and lower part baffle respectively, and upper portion baffle and lower part baffle lock constitute combined type sealing baffle, and upper portion baffle and lower part baffle are through many hexagon socket head cap screw fixed connection, and upper portion baffle and lower part baffle cooperation are equipped with locating pin and the pinhole that is used for the location when installing.
Furthermore, the combined type sealing baffle is fixedly connected with the bearing outer ring seat through a plurality of inner hexagon bolts.
Furthermore, the number of the oil pipe joints is two, and the oil pipe joints are matched with the oil circuit interface of the gear box to be provided with sealing gaskets.
Further, the oil spraying pipe is fixedly connected with the bearing outer ring seat through a plurality of bolts.
Furthermore, the bearing outer ring seat is fixedly connected with the connecting disc through a plurality of inner hexagon bolts.
Furthermore, the inner ring of the bearing is limited with the high-speed rotating shaft through a round nut for the shaft, and the round nut for the shaft is fixedly connected with the high-speed rotating shaft through a double-tooth stop washer of the round nut.
Furthermore, the thread of the round nut for the shaft is matched with a double-tooth stop washer of the round nut to be provided with a loosening-stopping key groove.
Furthermore, a raised retaining shoulder for increasing the lubricant storage capacity at the bearing rotating body part is arranged on the outer side of the round nut for the shaft.
Furthermore, the bearing outer ring is positioned by a round nut through a hole, and the hole is fixedly connected with the bearing outer ring seat by the round nut.
The utility model has the advantages that: the utility model adopts the modular design, the structure is simple, and the installation and the maintenance are convenient; the oil return function can ensure that the fluid can be fully and circularly diffused in the sealing cavity, and the cooling efficiency is improved, so that the abrasion of the sealing part is reduced, and the failure time of the oil seal is greatly prolonged; the combined type sealing baffle reduces the leakage loss between the rotating and the static phases and improves the sealing performance of the bearing cavity of the high-speed gear box.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a composite sealing baffle;
FIG. 3 is a schematic structural view of an outer race of a bearing;
in the figure: 100-high speed rotating shaft; 200-composite sealing baffle; 201-upper baffle; 202-lower baffle; 205-1# oil return hole; 300-bearing outer race seat; no. 301-2 oil return holes; 400-connecting disc; 700-oil pipe joint; 800-sealing gaskets; 900-oil spray pipe; 1000-round nut double-tooth stop washer; 1100-round nut for shaft; 1200-a bearing; 1300-round nut for hole;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in the figure, the composite sealing and sealing device for the modular high-speed gearbox comprises:
the bearing outer ring seat 300 is characterized in that one side of the bearing outer ring seat 300 is fixedly provided with a connecting disc 400 used for being connected with a gearbox, the inner side of the bearing outer ring seat 300 is provided with a bearing 1200 matched with the high-speed rotating shaft 100, and the bearing outer ring seat 300 is provided with a No. 2 oil return hole 301 used for connecting the inner cavity of the bearing outer ring seat 300 with an oil way of the gearbox;
the bearing lubricating mechanism is used for lubricating the bearing 1200 and comprises a bearing lubricating oil path positioned in the bearing outer ring seat 300, the input end of the bearing lubricating oil path is connected with an oil pipe joint 700 used for being connected with the oil path of the gearbox, and the output end of the bearing lubricating oil path is connected with an oil spraying pipe 900 used for spraying oil to the bearing 1200;
the combined type sealing baffle 200 is used for sealing, the combined type sealing baffle 200 comprises a plurality of layers of sealing plates, the sealing plates are matched with the high-speed rotating shaft 100 to form a multi-tooth labyrinth sealing structure, a cavity is formed between every two adjacent layers of sealing plates, and the sealing plates are provided with 1# oil return holes 205 used for enabling two adjacent cavities and the cavities to be communicated with the inner cavity of the bearing outer ring seat 300.
Further, combined type seal baffle 200 includes two semicircular baffle units, be upper portion baffle 201 and lower part baffle 202 respectively, and upper portion baffle 201 and lower part baffle 202 lock constitute combined type seal baffle 200, and upper portion baffle 201 and lower part baffle 202 pass through many hexagon socket head cap screw fixed connection, and upper portion baffle 201 and lower part baffle 202 cooperate and are equipped with locating pin and the pinhole that is used for the location during the installation.
Further, the composite sealing baffle 200 is fixedly connected to the bearing outer ring base 300 by a plurality of hexagon socket head bolts.
Further, the number of the oil pipe joints 700 is two, and a sealing washer 800 is arranged on the oil pipe joints 700 and the oil way interface of the gearbox in a matched mode.
Further, the oil spray pipe 900 is fixedly connected with the bearing outer ring base 300 through a plurality of bolts.
Further, the bearing outer ring base 300 is fixedly connected to the connection plate 400 by a plurality of hexagon socket head bolts.
Further, the inner ring of the bearing 1200 is restricted by the round nut for shaft 1100 from the high-speed rotation shaft 100, and the round nut for shaft 1100 is fixedly connected to the high-speed rotation shaft 100 by the double-tooth lock washer 1000.
Further, a loosening prevention key groove is formed in the threaded position of the round nut 1100 for the shaft and matched with the round nut double-tooth stopping washer 1000.
Further, a convex shoulder for increasing the amount of lubricant remaining in the rotating body of the bearing 1200 is provided outside the round nut for shaft 1100.
Further, the outer ring of the bearing 1200 is positioned by a hole round nut 1300, and the hole round nut 1300 is fixedly connected with the bearing outer ring base 300.
When the utility model is used, the lubricating oil which rotates at a high speed and is 100 at a high speed is sprayed to the bearing 1200 rotator part through the oil pipe connector 700 and the bearing lubricating oil circuit in sequence through the oil spraying pipe 900, the lubrication of the bearing 1200 is realized, the lubricating oil has higher energy under the driving of the bearing 1200 rotator which rotates at a high speed, and the flow resistance is gradually increased through the sudden expansion and sudden shrinkage loss of the comb tooth channel of the comb tooth structure on the multilayer sealing plate, thereby the leakage of the lubricating oil from the comb tooth channel at the outermost side is limited, and the fluid circulation effect of the sealing area is ensured to improve the cooling effect; and finally, the lubricating oil flows back to the oil way of the gearbox through the No. 1 oil return hole 205 and the No. 2 oil return hole 301 to realize fluid circulation.
The utility model adopts the modular design, the structure is simple, and the installation and the maintenance are convenient; the oil return function can ensure that the fluid can be fully and circularly diffused in the sealing cavity, and the cooling efficiency is improved, so that the abrasion of the sealing part is reduced, and the failure time of the oil seal is greatly prolonged; the combined type sealing baffle reduces the leakage loss between the rotating and the static phases and improves the sealing performance of the bearing cavity of the high-speed gear box.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (10)
1. A composite sealing and sealing device for a modular high-speed gearbox is characterized by comprising:
the bearing outer ring seat (300), one side of the bearing outer ring seat (300) is fixedly provided with a connecting disc (400) used for being connected with a gear box, the inner side of the bearing outer ring seat (300) is provided with a bearing (1200) in a matching way with the high-speed rotating shaft (100), and the bearing outer ring seat (300) is provided with a No. 2 oil return hole (301) used for connecting the inner cavity of the bearing outer ring seat (300) with an oil circuit of the gear box;
the bearing lubricating mechanism is used for lubricating the bearing (1200), and comprises a bearing lubricating oil way positioned in the bearing outer ring seat (300), the input end of the bearing lubricating oil way is connected with an oil pipe connector (700) used for being connected with the oil way of the gear box, and the output end of the bearing lubricating oil way is connected with an oil spraying pipe (900) spraying oil to the bearing (1200);
combined type seal baffle (200) for it is sealed, combined type seal baffle (200) include the multilayer closing plate, and the closing plate is equipped with many tooth labyrinth seal structure with high-speed rotation axis (100) cooperation, forms the cavity between the adjacent two-layer closing plate, is equipped with on the closing plate to be used for making two adjacent cavities and cavity and 1# oil gallery (205) of bearing outer ring seat (300) inner chamber intercommunication.
2. The composite sealing and sealing device of the modular high-speed gearbox according to claim 1, wherein the composite sealing baffle (200) comprises two semicircular baffle units, namely an upper baffle (201) and a lower baffle (202), the upper baffle (201) and the lower baffle (202) are buckled to form the composite sealing baffle (200), the upper baffle (201) and the lower baffle (202) are fixedly connected through a plurality of inner hexagonal bolts, and positioning pins and pin holes for positioning during installation are arranged in a matching manner on the upper baffle (201) and the lower baffle (202).
3. The composite sealing and sealing device of the modular high-speed gearbox as claimed in claim 1, wherein the composite sealing baffle (200) is fixedly connected with the bearing outer ring seat (300) through a plurality of hexagon socket head bolts.
4. The composite sealing and sealing device of the modular high-speed gearbox according to claim 1, wherein the number of the oil pipe joints (700) is two, and the oil pipe joints (700) are provided with sealing gaskets (800) in cooperation with oil circuit interfaces of the gearbox.
5. The composite sealing and sealing device of the modular high-speed gearbox according to claim 1, wherein the oil injection pipe (900) is fixedly connected with the bearing outer ring seat (300) through a plurality of bolts.
6. The composite sealing and sealing device of the modular high-speed gearbox as recited in claim 1, wherein the bearing outer ring seat (300) is fixedly connected with the connecting disc (400) through a plurality of hexagon socket head cap bolts.
7. The composite sealing and sealing device of the modular high-speed gearbox according to claim 1, wherein the inner ring of the bearing (1200) is limited by a round nut for shaft (1100) and the high-speed rotating shaft (100), and the round nut for shaft (1100) is fixedly connected with the high-speed rotating shaft (100) through a double-tooth stop washer for round nut (1000).
8. The composite sealing and sealing device of the modular high-speed gearbox according to claim 7, wherein a loosening-preventing key groove is formed in the threaded position of the round nut (1100) for the shaft and matched with the double-tooth stop washer (1000) of the round nut.
9. The composite sealing and sealing device of the modular high-speed gearbox according to the claim 7 or 8, characterized in that the outside of the round nut (1100) for the shaft is provided with a convex retaining shoulder for increasing the lubricating oil storage amount of the rotating body part of the bearing (1200).
10. The composite sealing and sealing device of the modular high-speed gearbox according to the claim 1, characterized in that the outer ring of the bearing (1200) is positioned by a round nut (1300) through a hole, and the round nut (1300) for the hole is fixedly connected with the outer ring seat (300) of the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022160124.XU CN213270967U (en) | 2020-09-28 | 2020-09-28 | Compound sealing device that seals of modularization high-speed gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022160124.XU CN213270967U (en) | 2020-09-28 | 2020-09-28 | Compound sealing device that seals of modularization high-speed gear box |
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| CN213270967U true CN213270967U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022160124.XU Active CN213270967U (en) | 2020-09-28 | 2020-09-28 | Compound sealing device that seals of modularization high-speed gear box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484245A (en) * | 2021-12-27 | 2022-05-13 | 中车永济电机有限公司 | Oil-spraying lubricating sealing structure applied to high-speed motor |
-
2020
- 2020-09-28 CN CN202022160124.XU patent/CN213270967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484245A (en) * | 2021-12-27 | 2022-05-13 | 中车永济电机有限公司 | Oil-spraying lubricating sealing structure applied to high-speed motor |
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