CN217951161U - Labyrinth structure of speed reducer - Google Patents
Labyrinth structure of speed reducer Download PDFInfo
- Publication number
- CN217951161U CN217951161U CN202221171427.4U CN202221171427U CN217951161U CN 217951161 U CN217951161 U CN 217951161U CN 202221171427 U CN202221171427 U CN 202221171427U CN 217951161 U CN217951161 U CN 217951161U
- Authority
- CN
- China
- Prior art keywords
- groove body
- labyrinth structure
- oil
- tank body
- baffle plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model relates to a reduction gear labyrinth structure relates to the technical field of automobile design and manufacturing. The cross section of the labyrinth structure of the speed reducer of the utility model consists of two right-angle sides and an arc edge connecting the two right-angle sides, and a first groove body, a second groove body and a third groove body are arranged in the labyrinth structure; a first oil baffle plate is arranged between the first tank body and the second tank body, and a second oil baffle plate is arranged between the second tank body and the third tank body; a first oil drainage hole is formed in the bottom of the first groove body, which is adjacent to the arc edge, a second oil drainage hole is formed in the bottom of the second groove body, which is adjacent to the arc edge, and the second oil drainage hole is communicated with the first groove body and the second groove body; the utility model discloses a reduction gear labyrinth structure can satisfy the structure demand of breather plug to can effectively block fluid and be close to the breather plug interface.
Description
Technical Field
The utility model relates to a technical field of automobile design and manufacturing, more specifically say, the utility model relates to a reduction gear labyrinth structure.
Background
The appearance of the new forms of energy reduction gear of different models can be different because the cabin is arranged and overall structure is different. Therefore, a compact and high-efficiency labyrinth needs to be designed, and the limitation conditions of the whole new energy reducer and the appearance structure can be met simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem in the prior art, the utility model aims to provide a reduction gear labyrinth structure.
The utility model discloses a reduction gear labyrinth structure, its characterized in that: the cross section of the labyrinth structure is composed of two right-angle sides and an arc side for connecting the two right-angle sides, and a first groove body, a second groove body and a third groove body are arranged in the labyrinth structure; the second tank body is positioned at the right angle of the cross section, the second tank body is respectively adjacent to the first tank body and the third tank body, a first oil baffle plate is arranged between the first tank body and the second tank body, and a second oil baffle plate is arranged between the second tank body and the third tank body; a first oil drainage hole is formed in the bottom, adjacent to the arc edge, of the first groove body, a second oil drainage hole is formed in the bottom, adjacent to the arc edge, of the second groove body, and the second oil drainage hole is communicated with the first groove body and the second groove body; and a vent plug is arranged on the outer side wall of the upper end of the second groove body.
The first oil baffle plate is perpendicular to one right-angle edge, and the second oil baffle plate is perpendicular to the other right-angle edge.
The first oil baffle plate extends to the circular arc edge from the right-angle edge, and the second oil baffle plate extends to the circular arc edge from the other right-angle edge.
And a ventilation plug is connected to the outer side wall of the upper end of the second groove body through a ventilation plug threaded hole.
The outer side wall of the upper end of the second groove body is of a concave structure.
Compared with the prior art, the utility model discloses a reduction gear labyrinth structure has following beneficial effect:
1. the labyrinth structure of the speed reducer can meet the structural requirements of the vent plug and can effectively prevent oil from approaching the interface of the vent plug;
2, the reducer is in an advancing working condition, and lubricating oil is not in the labyrinth;
and 3, under the condition that the speed reducer backs a car, oil enters the labyrinth through the first oil drainage hole, flows out of the first oil drainage hole after being blocked by the first oil baffle plate, and meets the design requirement though the oil exists.
Drawings
Fig. 1 is a schematic plan view of a labyrinth structure of a reduction gear according to embodiment 1 (circled portion is a top perspective view).
Fig. 2 is a three-dimensional structural view (bottom view) of the labyrinth structure of the reduction gear according to embodiment 1.
Fig. 3 is a three-dimensional structural view (side view) of a labyrinth structure of a reduction gear according to embodiment 1.
Fig. 4 is a side sectional view of a reducer labyrinth structure according to embodiment 1.
FIG. 5 is a schematic diagram of the path of the gas exiting the retarder housing after thermal expansion in the retarder.
FIG. 6 is a schematic diagram of the path of the retarder oil after entering the labyrinth.
Detailed Description
The labyrinth structure of the reducer of the present invention will be further described with reference to the following embodiments to help those skilled in the art to understand the technical solution of the present invention more completely, accurately and deeply.
Example 1
As shown in fig. 1 to 4, in the labyrinth structure of the speed reducer of this embodiment, a cross section of the labyrinth structure is composed of two right-angle sides and an arc side connecting the two right-angle sides, a first groove body 3, a second groove body 5 and a third groove body 4 are arranged in the labyrinth structure, the second groove body 5 is located at a right angle of the cross section, the second groove body 5 is respectively adjacent to the first groove body 3 and the third groove body 4, a first oil baffle 6 is arranged between the first groove body 3 and the second groove body 5, and a second oil baffle 7 is arranged between the second groove body 5 and the third groove body 4. The first oil baffle plate 6 is perpendicular to one right-angle edge, and the second oil baffle plate 7 is perpendicular to the other right-angle edge. The first oil baffle plate 6 extends to the circular arc edge from the right-angle edge, and the second oil baffle plate 7 extends to the circular arc edge from the other right-angle edge. The bottom of the first groove body 3, which is close to the arc edge, is provided with a first oil drainage hole 1, the bottom of the second groove body 5, which is close to the arc edge, is provided with a second oil drainage hole 2, and the second oil drainage hole 2 is communicated with the first groove body 3 and the second groove body 5. And the outer side wall of the upper end of the second groove body 5 is connected with a vent plug 8 through a vent plug threaded hole 9. The outer side wall of the upper end of the second groove body 5 is of a concave structure, so that the vent plug 8 is of a sinking structure.
The labyrinth structure of reduction gear air exchange system of this embodiment, overall structure is little, is similar to triangle-shaped, and the inner structure of laminating reduction gear assembly casing, the installation of breather plug adopt the formula of sinking, is less than the assembly outer boundary after the installation of breather plug, under the circumstances that does not influence gear operation, compact structure saves casing inner space. The labyrinth is separated by a cast oil baffle, and has 2 main areas: a breather plug region and a buffer region. As shown in fig. 3, the vent plug area is at the highest place of the labyrinth, so that the vent plug can conveniently enter and exhaust air; the buffer area is arranged at the position where the labyrinth is relatively lowest, and an oil drainage port is arranged, so that the oil of the speed reducer entering the labyrinth buffer area can conveniently flow back to the inner cavity of the shell. When the speed reducer operates, the temperature of oil in the speed reducer rises due to the friction of each kinematic pair, and the air pressure in the speed reducer rises, as shown in fig. 5, at the moment, the air in the speed reducer can be discharged out of the shell of the speed reducer through the first oil drainage hole and the vent plug, so that the air pressure in the speed reducer is maintained stable, the oil seal is always kept under allowable working pressure, and the oil leakage phenomenon is avoided. The reducer oil is driven to rotate through the gear, and is hit to the outer wall of the labyrinth, and part of the reducer oil enters the labyrinth from the first oil drainage hole. As shown in fig. 6, the oil entering the labyrinth will hit the first oil baffle plate and flow back into the casing from the oil drain port.
For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial modifications are possible within the protection scope of the present invention as long as the method concept and technical solution of the present invention are adopted.
Claims (5)
1. A reduction gear labyrinth structure which characterized in that: the cross section of the labyrinth structure is composed of two right-angle sides and an arc side for connecting the two right-angle sides, and a first groove body, a second groove body and a third groove body are arranged in the labyrinth structure; the second tank body is positioned at the right angle of the cross section, the second tank body is respectively adjacent to the first tank body and the third tank body, a first oil baffle plate is arranged between the first tank body and the second tank body, and a second oil baffle plate is arranged between the second tank body and the third tank body; a first oil drainage hole is formed in the bottom, adjacent to the arc edge, of the first groove body, a second oil drainage hole is formed in the bottom, adjacent to the arc edge, of the second groove body, and the second oil drainage hole is communicated with the first groove body and the second groove body; and a vent plug is arranged on the outer side wall of the upper end of the second groove body.
2. The decelerator labyrinth structure according to claim 1, wherein: the first oil baffle plate is perpendicular to one right-angle edge, and the second oil baffle plate is perpendicular to the other right-angle edge.
3. The decelerator labyrinth structure according to claim 2, wherein: the first oil baffle plate extends to the arc edge from the right-angle edge, and the second oil baffle plate extends to the arc edge from the other right-angle edge.
4. The decelerator labyrinth structure according to claim 1, wherein: and the outer side wall of the upper end of the second groove body is connected with a ventilation plug through a ventilation plug threaded hole.
5. The reducer labyrinth structure according to claim 1, wherein: the outer side wall of the upper end of the second groove body is of a concave structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221171427.4U CN217951161U (en) | 2022-05-16 | 2022-05-16 | Labyrinth structure of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221171427.4U CN217951161U (en) | 2022-05-16 | 2022-05-16 | Labyrinth structure of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217951161U true CN217951161U (en) | 2022-12-02 |
Family
ID=84215278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221171427.4U Active CN217951161U (en) | 2022-05-16 | 2022-05-16 | Labyrinth structure of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217951161U (en) |
-
2022
- 2022-05-16 CN CN202221171427.4U patent/CN217951161U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3923399A1 (en) | Battery pack and cooling system thereof | |
| CN110925405A (en) | Speed reducer housing, dual-drive speed reducer and automobile | |
| CN217951161U (en) | Labyrinth structure of speed reducer | |
| CN201221600Y (en) | Hydraulic transmission speed variator box body of automobile dead axle wheel system | |
| CN211924860U (en) | Speed reducer housing, dual-drive speed reducer and automobile | |
| CN207015077U (en) | A kind of cavity type structure for ensureing breather plug sealing and the backflow of local lubricating oil | |
| CN207879920U (en) | A kind of Retarder head cover | |
| CN203308564U (en) | Brazing type full-aluminum module type radiator without master fin | |
| CN201318200Y (en) | Embedded oil cooler of engine | |
| CN216643054U (en) | Gear box and shield tunneling machine | |
| CN201028084Y (en) | Leakage-proof safety valve | |
| CN217713124U (en) | Hydraulic oil tank and engineering truck | |
| CN217080927U (en) | Hydraulic transmission device for air conditioner of crane | |
| CN218718653U (en) | Transmission housing | |
| CN201916065U (en) | Cylinder provided with water pump and oil pump mounting holes | |
| CN202470858U (en) | Fin type cooling device | |
| CN210033610U (en) | Auxiliary water tank vent structure | |
| CN203703088U (en) | Oil cooler pressure relief device | |
| CN215950332U (en) | High-temperature end cooling structure of gear box | |
| CN218906909U (en) | Shell of electric drive assembly, power transmission system and automobile | |
| CN212318146U (en) | Water-cooling radiator | |
| CN211398517U (en) | Lubricating structure of electric drive axle | |
| CN210344222U (en) | Transmission housing precast oil pipe structure | |
| CN104279071B (en) | The loss of weight cylinder block of diesel engine | |
| CN221220971U (en) | Hydraulic oil tank and engineering vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |