CN223447611U - A lubrication and sealing device for a high-speed gearbox - Google Patents
A lubrication and sealing device for a high-speed gearboxInfo
- Publication number
- CN223447611U CN223447611U CN202422855604.6U CN202422855604U CN223447611U CN 223447611 U CN223447611 U CN 223447611U CN 202422855604 U CN202422855604 U CN 202422855604U CN 223447611 U CN223447611 U CN 223447611U
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- oil
- box
- lubrication
- transmission shaft
- bearing
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Abstract
The utility model relates to the technical field of gearboxes, and particularly discloses a lubrication sealing device of a high-speed gearbox, wherein an oil injection ring is arranged on a box body, the box body is provided with an oil supply channel, the oil supply channel is used for conveying lubricating oil, the oil injection ring is provided with an oil duct, the oil duct is provided with an oil inlet end and an oil outlet end, the oil inlet end is communicated with the oil supply channel, the oil outlet end is used for injecting oil to a bearing, the oil injection ring is sleeved on a transmission shaft, the inner peripheral surface of the oil injection ring is provided with a first labyrinth groove, and the inner peripheral surface of the oil injection ring is in clearance fit with the transmission shaft. So set up, high-speed gear box operation during operation, lubricating oil is in proper order via oil supply channel and oil duct to directly lubricate the bearing, and the lubricating oil that the oil duct was spouted is most blocked by the first labyrinth groove of oil spout ring self, and it effectively promotes high-speed gear box's lubrication seal effect, has reduced the lubricating oil mass that needs directly to flow back to the box from the box oil gallery, thereby has reduced the demand to the oil return space in the box, further simplified structure.
Description
Technical Field
The utility model relates to the technical field of gearboxes, in particular to a lubrication sealing device of a high-speed gearbox.
Background
The gearbox converts kinetic energy generated by high-speed rotation motion of the motor or other power source into proper speed and torque through combination of the large gear and the small gear, and transmits the proper speed and torque to corresponding mechanical equipment to drive the mechanical equipment to operate. In order to reduce the friction coefficient of the gearbox in the moving process and ensure the rotation precision, rotating parts in the gearbox are generally lubricated, and the phenomenon that oil is easy to leak along the axial direction of a transmission shaft due to high oil pressure in the high-speed running process of the gearbox is solved, so that the lubrication effect of the gearbox can be further reduced to a certain extent, the running fluency of the gearbox is influenced, and the service life is prolonged.
Accordingly, there is a need for a lubrication seal for a high speed gearbox that addresses the above-described issues.
Disclosure of utility model
The utility model aims to provide a lubrication sealing device of a high-speed gear box, which improves the lubrication sealing effect of the high-speed gear box and ensures the stable and reliable operation of the high-speed gear box.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a lubrication sealing device of a high-speed gear box, which comprises a box body, a bearing and a transmission shaft, wherein a mounting cavity is arranged in the box body, the transmission shaft penetrates through the mounting cavity, an inner ring of the bearing is fixedly sleeved on the transmission shaft, an outer ring of the bearing is fixedly connected to the box body, and the lubrication sealing device comprises:
The oil spraying ring is arranged on the box body, an oil supply channel is formed in the box body and used for conveying lubricating oil, an oil duct is formed in the oil spraying ring and is provided with an oil inlet end and an oil outlet end, the oil inlet end is communicated with the oil supply channel, the oil outlet end is used for spraying oil to the bearing, the oil spraying ring is sleeved on the transmission shaft, a first labyrinth groove is formed in the inner peripheral surface of the oil spraying ring, and the inner peripheral surface of the oil spraying ring is in clearance fit with the transmission shaft.
As an optimized technical scheme of the lubrication sealing device of the high-speed gear box, the lubrication sealing device further comprises a sealing element and a positioning element, wherein the positioning element is connected between the sealing element and the box body, the sealing element is annular, and the sealing element is sleeved on the transmission shaft.
As a preferable technical scheme of the lubrication sealing device of the high-speed gear box, the inner peripheral surface of the sealing member is provided with a second labyrinth groove, and the inner peripheral surface of the sealing member is in clearance fit with the transmission shaft.
As a preferable technical scheme of the lubricating sealing device of the high-speed gear box, a plurality of oil slingers are arranged on the outer peripheral surface of the transmission shaft, the oil slingers are annular, a plurality of oil return grooves are arranged on the inner peripheral surface of the sealing piece, the oil return grooves are annular, the oil return grooves and the oil slingers are arranged in one-to-one correspondence, the box body is further provided with an oil return channel, and the oil return grooves are communicated with the oil slingers and the oil return channel.
As a preferable technical scheme of the lubrication sealing device of the high-speed gear box, the positioning piece is a pin shaft.
As a preferable technical scheme of the lubrication sealing device of the high-speed gear box, the oil injection ring is axially arranged between the bearing and the sealing element, and end faces at two ends of the oil injection ring are respectively attached to the end face of the outer ring of the bearing and the end face of the sealing element.
As an optimized technical scheme of the lubricating sealing device of the high-speed gear box, the number of the oil throwing grooves is two, the sealing piece is provided with a first end and a second end along the axial direction, the first end is close to the bearing compared with the second end, and one oil throwing groove is formed in the end face of the first end.
As an optimized technical scheme of the lubrication sealing device of the high-speed gear box, the lubrication sealing device further comprises a cover plate and a connecting piece, wherein the connecting piece is connected between the cover plate and the box body, the cover plate is sleeved on the transmission shaft, and the cover plate is abutted to the end face of the second end.
As a preferable technical scheme of the lubrication sealing device of the high-speed gear box, the connecting piece is a bolt.
As a preferable technical scheme of the lubrication sealing device of the high-speed gear box, the oil duct comprises a first oil duct and a second oil duct, the first oil duct extends along the vertical direction, the second oil duct extends along the horizontal direction, the first oil duct is communicated with the second oil duct, the first oil duct is vertically arranged with the second oil duct, the first oil duct is communicated with the oil supply channel, and the second oil duct is opposite to the rolling body of the bearing.
The beneficial effects of the utility model are as follows:
The utility model provides a lubrication sealing device of a high-speed gear box, which comprises a box body, a bearing and a transmission shaft, wherein the box body is internally provided with a mounting cavity, the transmission shaft penetrates through the mounting cavity, an inner ring of the bearing is fixedly sleeved on the transmission shaft, an outer ring of the bearing is fixedly connected to the box body, the lubrication sealing device comprises an oil injection ring, the oil injection ring is arranged on the box body, the box body is provided with an oil supply channel, the oil supply channel is used for conveying lubricating oil, the oil injection ring is provided with an oil duct, the oil duct is provided with an oil inlet end and an oil outlet end, the oil inlet end is communicated with the oil supply channel, the oil outlet end is used for injecting oil to the bearing, the oil injection ring is sleeved on the transmission shaft, the inner circumferential surface of the oil injection ring is provided with a first labyrinth groove, and the inner circumferential surface of the oil injection ring is in clearance fit with the transmission shaft. So set up, high-speed gear box operation during operation, lubricating oil is in proper order via oil supply channel and oil duct to directly lubricate the bearing, and the lubricating oil that the oil duct was spouted is most blocked by the first labyrinth groove of oil spout ring self, and it effectively promotes high-speed gear box's lubrication seal effect, has reduced the lubricating oil mass that needs directly to flow back to the box from the box oil gallery, thereby has reduced the demand to the oil return space in the box, further simplified structure.
Drawings
Fig. 1 is a schematic structural view of a lubrication seal device of a high-speed gear box provided by the utility model.
Wherein:
1. 2, a bearing;
3. 31, an oil throwing groove;
4. 41, oil duct, 42, the first labyrinth groove;
5. An oil supply passage;
6. the sealing piece, 61, the second labyrinth groove, 62, the oil return groove;
7. The device comprises a positioning piece, an oil return channel, a cover plate, a connecting piece and a cover plate.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected or detachably connected, mechanically connected or electrically connected, directly connected or indirectly connected via an intermediate medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, this embodiment provides a lubrication sealing device of a high-speed gearbox, wherein the high-speed gearbox includes a box 1, a bearing 2 and a transmission shaft 3, an installation cavity is arranged in the box 1, the transmission shaft 3 passes through the installation cavity, the inner ring of the bearing 2 is fixedly sleeved on the transmission shaft 3, the outer ring of the bearing 2 is fixedly connected with the box 1, the lubrication sealing device includes an oil injection ring 4, the oil injection ring 4 is installed on the box 1, the box 1 is provided with an oil supply channel 5, the oil supply channel 5 is used for conveying lubricating oil, the oil injection ring 4 is provided with an oil duct 41, the oil duct 41 is provided with an oil inlet end and an oil outlet end, the oil inlet end is communicated with the oil supply channel 5, the oil outlet end is used for injecting oil to the bearing 2, the oil injection ring 4 is sleeved on the transmission shaft 3, the inner circumferential surface of the oil injection ring 4 is provided with a first labyrinth groove 42, and the inner circumferential surface of the oil injection ring 4 is in clearance fit with the transmission shaft 3. So set up, during operation of high-speed gear box, lubricating oil is in proper order through oil feed channel 5 and oil duct 41 to carry out direct lubrication to bearing 2, and the lubricating oil that is spouted through oil duct 41 is most blocked by the first labyrinth groove 42 of oil spout ring 4 self, and it effectively promotes high-speed gear box's lubrication seal effect, has reduced the lubricating oil mass that needs direct from box 1 oil return hole to flow back to box 1, thereby has reduced the demand to the oil return space in the box 1, further simplified structure. The direction indicated by the arrow in fig. 1 is the circulating flow direction of the lubricating oil.
Optionally, the lubrication sealing device further includes a sealing element 6 and a positioning element 7, the positioning element 7 is connected between the sealing element 6 and the box 1, the sealing element 6 is annular, the sealing element 6 is sleeved on the transmission shaft 3, a second labyrinth groove 61 is formed in the inner peripheral surface of the sealing element 6, and the inner peripheral surface of the sealing element 6 is in clearance fit with the transmission shaft 3. Specifically, the positioning member 7 is a pin shaft. So arranged, the second labyrinth grooves 61 can further block the lubricating oil ejected from the oil passage 41, promote the sealing effect,
Optionally, the outer peripheral surface of the transmission shaft 3 is provided with a plurality of oil slingers 31, the oil slingers 31 are annular, the inner peripheral surface of the sealing piece 6 is provided with a plurality of oil return grooves 62, the oil return grooves 62 are annular, the plurality of oil return grooves 62 and the plurality of oil slingers 31 are arranged in one-to-one correspondence, the box 1 is also provided with an oil return channel 8, and the oil return grooves 62 are communicated with the oil slingers 31 and the oil return channel 8. So set up, the remaining lubricating oil can get rid of on the sealing ring through the annular oil slinger 31 on the transmission shaft 3 of high-speed rotation to finally return to the inside of box 1 through the oil return channel 8 of box 1, thereby reach the purpose of oil blanket.
In particular, in the present embodiment, an exemplary scheme is given that the oil injection ring 4 is disposed between the bearing 2 and the seal member 6 in the axial direction, and end surfaces of both ends of the oil injection ring 4 are respectively attached to end surfaces of an outer ring of the bearing 2 and end surfaces of the seal member 6. Further, the number of the oil slinging grooves 31 is two, the sealing member 6 is provided with a first end and a second end along the axial direction, the first end is close to the bearing 2 compared with the second end, one oil slinging groove 31 is arranged on the end face of the first end, and one oil slinging groove 31 is communicated with the first labyrinth groove 42.
Optionally, in order to further improve the lubrication sealing effect inside the box 1, the lubrication sealing device further includes a cover plate 9 and a connecting piece 10, the connecting piece 10 is connected between the cover plate 9 and the box 1, the cover plate 9 is sleeved on the transmission shaft 3, and the cover plate 9 is abutted to the end face of the second end. Specifically, the connector 10 is a bolt.
Optionally, in order to enhance the lubrication effect on the bearing 2, the oil passage 41 includes a first oil passage and a second oil passage, the first oil passage extends in the vertical direction, the second oil passage extends in the horizontal direction, the first oil passage communicates with the second oil passage, the first oil passage is vertically disposed with the second oil passage, the first oil passage communicates with the oil supply passage 5, and the second oil passage is opposite to the rolling element of the bearing 2.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. The utility model provides a lubrication seal device of high-speed gear box, high-speed gear box includes box (1), bearing (2) and transmission shaft (3), establish the installation cavity in box (1), transmission shaft (3) wear to establish the installation cavity, the fixed cover of inner circle of bearing (2) is located transmission shaft (3), the outer lane fixed connection of bearing (2) in box (1), its characterized in that, lubrication seal device includes:
The oil spraying ring (4), oil spraying ring (4) install in box (1), oil supply channel (5) have been seted up to box (1), oil supply channel (5) are used for carrying lubricating oil, oil duct (41) have been seted up to oil spraying ring (4), oil duct (41) have advance oil end and play oil end, advance oil end intercommunication oil supply channel (5), go out the oil end be used for to bearing (2) oil spout, oil spraying ring (4) cover is located transmission shaft (3), oil spraying ring (4)'s inner peripheral face is provided with first labyrinth groove (42), just oil spraying ring (4) inner peripheral face with transmission shaft (3) clearance fit.
2. The lubrication sealing device of a high-speed gearbox according to claim 1, further comprising a sealing element (6) and a positioning element (7), wherein the positioning element (7) is connected between the sealing element (6) and the gearbox (1), the sealing element (6) is annular, and the sealing element (6) is sleeved on the transmission shaft (3).
3. Lubrication sealing arrangement for a high speed gearbox according to claim 2, characterised in that the inner circumferential surface of the seal (6) is provided with a second labyrinth groove (61) and that the inner circumferential surface of the seal (6) is in clearance fit with the drive shaft (3).
4. The lubrication sealing device of the high-speed gearbox according to claim 2, wherein a plurality of oil slingers (31) are formed in the outer peripheral surface of the transmission shaft (3), the oil slingers (31) are annular, a plurality of oil return grooves (62) are formed in the inner peripheral surface of the sealing piece (6), the oil return grooves (62) are annular, the oil return grooves (62) and the oil slingers (31) are arranged in one-to-one correspondence, the oil return channel (8) is further formed in the box body (1), and the oil return grooves (62) are communicated with the oil slingers (31) and the oil return channel (8).
5. A lubrication sealing arrangement for a high speed gearbox according to claim 2, characterised in that the positioning element (7) is a pin.
6. The lubrication sealing device of the high-speed gearbox according to claim 4, wherein the oil injection ring (4) is axially arranged between the bearing (2) and the sealing element (6), and end surfaces at two ends of the oil injection ring (4) are respectively attached to an outer ring end surface of the bearing (2) and an end surface of the sealing element (6).
7. The lubrication seal of a high speed gearbox according to claim 6, characterized in that the number of oil slingers (31) is two, the seal (6) having a first end and a second end in axial direction, the first end being closer to the bearing (2) than the second end, wherein one of the oil slingers (31) is open at the end face of the first end.
8. The lubrication seal device of the high-speed gearbox according to claim 7, further comprising a cover plate (9) and a connecting piece (10), wherein the connecting piece (10) is connected between the cover plate (9) and the box body (1), the cover plate (9) is sleeved on the transmission shaft (3), and the cover plate (9) is abutted with the end face of the second end.
9. A lubrication sealing arrangement for a high speed gearbox according to claim 8, characterised in that the connection (10) is a bolt.
10. The lubrication seal of a high-speed gearbox according to any one of claims 1-9, characterized in that the oil passage (41) comprises a first oil passage and a second oil passage, the first oil passage extends in a vertical direction, the second oil passage extends in a horizontal direction, the first oil passage communicates with the second oil passage, and the first oil passage is arranged perpendicularly to the second oil passage, the first oil passage communicates with the oil supply passage (5), and the second oil passage faces the rolling bodies of the bearing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422855604.6U CN223447611U (en) | 2024-11-22 | 2024-11-22 | A lubrication and sealing device for a high-speed gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422855604.6U CN223447611U (en) | 2024-11-22 | 2024-11-22 | A lubrication and sealing device for a high-speed gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223447611U true CN223447611U (en) | 2025-10-17 |
Family
ID=97332495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422855604.6U Active CN223447611U (en) | 2024-11-22 | 2024-11-22 | A lubrication and sealing device for a high-speed gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223447611U (en) |
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2024
- 2024-11-22 CN CN202422855604.6U patent/CN223447611U/en active Active
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