CN213206520U - Lubricating structure for speed reducing motor input shaft spline - Google Patents
Lubricating structure for speed reducing motor input shaft spline Download PDFInfo
- Publication number
- CN213206520U CN213206520U CN202022147339.8U CN202022147339U CN213206520U CN 213206520 U CN213206520 U CN 213206520U CN 202022147339 U CN202022147339 U CN 202022147339U CN 213206520 U CN213206520 U CN 213206520U
- Authority
- CN
- China
- Prior art keywords
- input shaft
- oil
- spline
- rotor shaft
- groove
- 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 gear motor field specifically is a lubricating structure for gear motor input shaft spline, and it includes motor and speed reducer, and the rotor shaft of motor and the equal cavity of input shaft of speed reducer, the one end of rotor shaft are sealed, and the other end of rotor shaft and the one end intercommunication of input shaft, intercommunication department periphery set up the spline, and the other end opening of input shaft, speed reducer lateral part are seted up and are led the oil groove, lead the oil groove and communicate with each other with the other end opening of input shaft. The utility model discloses avoided completely because the bearing makes lubricating oil can't get rid of the unfavorable factor that oil brought through and high-speed swivel bearing. Lubricating oil gets into by leading the oil groove, and the flow is bigger, and a large amount of fluid that can guarantee can flow in the rotor shaft to seal in the one end of rotor shaft, can guarantee effectual backward flow, effective lubrication can all be guaranteed to two kinds of types of internal and external splines.
Description
Technical Field
The utility model relates to a gear motor field specifically is a lubricating structure for gear motor input shaft spline.
Background
In the prior art, a motor shaft of a speed reducing motor is connected with an input shaft of a speed reducer through a spline, and the spline connection is lubricated by adopting a sealing grease scheme. However, due to manufacturing, assembly tolerances and axial play of the bearing, axial play exists between the inner and outer spline faces of the reducer and the motor connection. If the spline pair has insufficient lubrication at high speed, abnormal abrasion of the tooth surface of the spline can be caused, and tooth surface burn even under the limit condition, so that the service life of a product is shortened, and the NVH problem is caused. In addition, impurities generated by the abrasion of the spline tooth surface enter the reducer case through lubricating oil, and influence the service life of other rotating parts (bearings and oil seals).
The spline is at motor output shaft end and reduction gear input shaft end department, and it is far above the lubricating oil face, and spline cooperation department is located the shaft hole, leads to the environment airtight relatively, and consequently, during the difficult operational environment who passes longer input shaft entering spline of sufficient volume fluid, the difficult arrival spline cooperation department of lubricating oil lubricates.
In order to solve such a problem, application No. 201810403518.8, entitled spline coupling structure using oil lubrication, discloses a structure for lubricating splines with lubricating oil in a reduction gear, which lubricates spline-fitting backlash with lubricating oil in the reduction gear. However, the structure of the patent application publication obviously neglects the bearing factor, no bearing is possible to be used in the high-speed rotation of the shaft, and the relatively high rotation speed at the motor shaft, generally 14000-. Moreover, during operation, the bearings rotating at high speeds throw the oil away, making it difficult for oil to pass through the bearings and into the shaft. In addition, the lubrication object disclosed in this patent application is an internal spline, and can only be an internal spline. Because the lubricating oil flowing in along the oil guide nozzle is limited, if the lubricating oil is an external spline, the limited lubricating oil can hardly flow back to lubricate the external spline after flowing into the stator.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is the difficult spline fit department that reachs of lubricated lubricating oil, in order to solve this problem, the utility model provides a lubricating structure for gear motor input shaft spline, it leads the oil groove through seting up, guarantees that a large amount of lubricating oil can flow in spline fit department.
The utility model discloses a content is a lubricating structure for gear motor input shaft spline, including motor and speed reducer, the rotor shaft of motor and the input shaft of speed reducer are all cavity, and the one end of rotor shaft is sealed, and the other end of rotor shaft and the one end intercommunication of input shaft, intercommunication department periphery set up the spline, the other end opening of input shaft, the oil groove is led to the setback of speed reducer lateral part, leads the oil groove and communicates with each other with the other end opening of input shaft. The structure can ensure that lubricating oil in the speed reducer enters the input shaft through the oil guide groove, enters the rotor shaft along the input shaft and then returns to the spline on the periphery of the communication part of the rotor shaft and the input shaft through the closed end of the rotor shaft.
Furthermore, one end of the rotor shaft is sealed by a sealing gland, and the sealing gland is in interference fit with the rotor shaft.
Furthermore, the oil guide groove is provided with a transverse oil passing groove and a longitudinal oil passing groove which are communicated with each other.
Furthermore, an opening at the other end of the input shaft is provided with an oil guide plate.
Furthermore, the oil guide plate is a long-strip-shaped U-shaped groove, one end of the U-shaped groove is located below the oil guide groove, and the other end of the U-shaped groove is located in the input shaft or the rotor shaft.
Furthermore, the oil guide plate is provided with a fan-shaped oil baffle plate and a long-strip-shaped U-shaped groove, the oil baffle plate is positioned on the side part of the input shaft, one end of the U-shaped groove is positioned below the oil guide groove, the oil baffle plate is connected with one end of the U-shaped groove, and the other end of the U-shaped groove is positioned in the input shaft or the rotor shaft.
Furthermore, the oil baffle plate is smoothly connected with the U-shaped groove.
Further, one end of the input shaft is located within the other end of the rotor shaft.
The beneficial effects of the utility model are that, the utility model discloses can make the lubricating oil in the speed reducer get into the input shaft through leading the oil groove to get into the rotor shaft along the input shaft, then return to the spline of the intercommunication department periphery of rotor shaft and input shaft through the blind end of rotor shaft. The utility model discloses avoided completely because the bearing makes lubricating oil can't get rid of the unfavorable factor that oil brought through and high-speed swivel bearing. Lubricating oil gets into by leading the oil groove, and the flow is bigger, and a large amount of fluid that can guarantee can flow in the rotor shaft to seal in the one end of rotor shaft, can guarantee effectual backward flow, effective lubrication can all be guaranteed to two kinds of types of internal and external splines.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of the oil guide plate of the present invention;
fig. 4 is a schematic diagram of the lubricating path of the lubricating oil according to the present invention, and the dotted line portion in the diagram is the lubricating path of the lubricating oil.
In the figure, the device comprises a motor 1, a motor 2, a speed reducer 3, a rotor shaft 4, an input shaft 5, a spline 6, a sealing gland 7, a transverse oil passing groove 8, a longitudinal oil passing groove 9, a U-shaped groove 10 and an oil baffle plate.
Detailed Description
As shown in the attached figure 1, the lubricating structure for the input shaft spline of the speed reducing motor comprises a motor 1 and a speed reducer 2, wherein a rotor shaft 3 of the motor 1 and an input shaft 4 of the speed reducer 2 are both hollow, one end of the rotor shaft 3 is closed, the other end of the rotor shaft 3 is communicated with one end of the input shaft 4, the periphery of the communicated part is provided with the spline 5, the other end of the input shaft 4 is open, the side part of the speed reducer 2 is provided with an oil guide groove, and the oil guide groove is communicated with the other end of the input shaft 4. This structure enables the lubricating oil in the speed reducer 22 to enter the input shaft 4 through the oil guide groove, enter the rotor shaft 3 along the input shaft 4, and then return to the spline 5 on the outer periphery of the communication part of the rotor shaft 3 and the input shaft 4 through the closed end of the rotor shaft 3. The structure completely avoids the adverse factors caused by the fact that lubricating oil cannot pass through the bearing and the lubricating oil is thrown away by the high-speed rotating bearing. Lubricating oil gets into by leading the oil groove, and the flow is bigger, and a large amount of fluid that can guarantee can flow in rotor shaft 3 to seal at rotor shaft 3's one end, can guarantee effectual backward flow, effective lubrication can all be guaranteed to two kinds of types of internal and external splines.
As shown in fig. 1, one end of the rotor shaft 3 is sealed by a gland 6, and the gland 6 is in interference fit with the rotor shaft 3. The structure enables the sealing gland 6 to be matched with the rotor shaft 3 tightly to avoid oil leakage, is convenient to process respectively and saves cost.
As shown in fig. 1 and 2, the oil guide groove has a transverse oil passing groove 7 and a longitudinal oil passing groove 8 which are communicated with each other. The transverse oil passing groove 7 and the longitudinal oil passing groove 8 form an L shape, and the transverse oil passing groove 7 can be arranged obliquely downwards so that lubricating oil can pass through.
And an opening at the other end of the input shaft 4 is provided with an oil guide plate. The oil guide plate can play a role in guiding lubricating oil, so that the lubricating oil can conveniently enter the shaft.
As shown in fig. 1, the oil guide plate is a long-strip-shaped U-shaped groove 9, one end of the U-shaped groove 9 is located below the oil guide groove, the end of the U-shaped groove 9 is connected with the reducer so as to be fixed, and the other end of the U-shaped groove 9 is located in the input shaft 4 or the rotor shaft 3. The elongated U-shaped groove 9 serves as a guide for the lubricating oil. The U-shaped groove 9 is designed as an open oil groove, so that more lubricating oil can be received, and materials are saved.
As shown in fig. 2 and 3, the oil guide plate has a fan-shaped oil baffle plate 10 and an elongated U-shaped groove 9, the oil baffle plate 10 is located at the side of the input shaft 4, one end of the U-shaped groove 9 is located below the oil guide groove, the oil baffle plate 10 is connected with one end of the U-shaped groove 9, and the other end of the U-shaped groove 9 is located in the input shaft 4 or the rotor shaft 3. The oil baffle plate 10 can be fixed on the speed reducer to play a role in fixing the U-shaped groove 9. Compared with a processing mode of directly slotting and lubricating on the spline, the production cost of the oil baffle plate 10 is lower, the oil flow is larger, and the lubrication is more sufficient.
As shown in fig. 3, the oil baffle 10 is smoothly connected with the U-shaped groove 9.
As shown in fig. 1, one end of the input shaft 4 is located within the other end of the rotor shaft 3.
The structure can be used in a power assembly system of an electric automobile, an oil lubrication mode is adopted, when an electric control driving unit of the electric automobile starts to work, a gear shaft stirs lubricating oil, and the lubricating oil splashes to enter an oil guide groove. The lubricating oil in the oil guide groove flows to the oil guide groove under the action of gravity and is guided into the input shaft 4 by the oil guide groove, and therefore enters the spline working environment for lubrication. Since the diameter of the rotor shaft 3 is larger than the diameter of the input shaft 4, a certain amount of lubricating oil can be stored in the rotor shaft 3 for continuous lubrication. And the lubricating oil returns to the cavity in the speed reducer after flowing out of the spline to form circulation. By adopting the method for lubricating the spline, oil can conveniently enter the working environment of the spline, the lubrication of the spline is realized, and the transmission failure caused by the excessive abrasion of the spline and the influence on the normal work of other parts are avoided.
Claims (8)
1. A lubricating structure for gear motor input shaft spline which characterized in that: including motor (1) and speed reducer (2), the equal cavity in rotor shaft (3) of motor (1) and input shaft (4) of speed reducer (2), the one end of rotor shaft (3) is sealed, the other end of rotor shaft (3) and the one end intercommunication of input shaft (4), intercommunication department periphery sets up spline (5), the other end opening of input shaft (4), oil groove is led to seting up of speed reducer (2) lateral part, it communicates with each other with the other end opening of input shaft (4) to lead the oil groove.
2. The lubrication structure for a spline of an input shaft of a reduction motor according to claim 1, wherein: one end of the rotor shaft (3) is sealed through a sealing gland (6), and the sealing gland (6) is in interference fit with the rotor shaft (3).
3. The lubrication structure for a spline of an input shaft of a reduction motor according to claim 1, wherein: the oil guide groove is provided with a transverse oil passing groove (7) and a longitudinal oil passing groove (8) which are communicated with each other.
4. The lubrication structure for a spline of an input shaft of a reduction motor according to any one of claims 1 to 3, wherein: an opening at the other end of the input shaft (4) is provided with an oil guide plate.
5. The lubrication structure for a spline of an input shaft of a reduction motor according to claim 4, wherein: the oil guide plate is a long-strip-shaped U-shaped groove (9), one end of the U-shaped groove (9) is located below the oil guide groove, and the other end of the U-shaped groove (9) is located in the input shaft (4) or the rotor shaft (3).
6. The lubrication structure for a spline of an input shaft of a reduction motor according to claim 4, wherein: lead the oiled-plate and have sectorial oil baffle (10) and long banding U-shaped groove (9), oil baffle (10) are located input shaft (4) lateral part, the one end in U-shaped groove (9) is located leads the oil groove below, oil baffle (10) are connected with the one end in U-shaped groove (9), the other end in U-shaped groove (9) is located input shaft (4) or rotor shaft (3).
7. The lubrication structure for a spline of an input shaft of a reduction motor according to claim 6, wherein: the oil baffle plate (10) is smoothly connected with the U-shaped groove (9).
8. The lubrication structure for a spline of an input shaft of a reduction motor according to claim 2, wherein: one end of the input shaft (4) is positioned in the other end of the rotor shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022147339.8U CN213206520U (en) | 2020-09-25 | 2020-09-25 | Lubricating structure for speed reducing motor input shaft spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022147339.8U CN213206520U (en) | 2020-09-25 | 2020-09-25 | Lubricating structure for speed reducing motor input shaft spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213206520U true CN213206520U (en) | 2021-05-14 |
Family
ID=75822936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022147339.8U Active CN213206520U (en) | 2020-09-25 | 2020-09-25 | Lubricating structure for speed reducing motor input shaft spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213206520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114157078A (en) * | 2021-11-30 | 2022-03-08 | 合肥巨一动力***有限公司 | Oil storage mechanism of high-rotation-speed motor and high-rotation-speed motor |
-
2020
- 2020-09-25 CN CN202022147339.8U patent/CN213206520U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114157078A (en) * | 2021-11-30 | 2022-03-08 | 合肥巨一动力***有限公司 | Oil storage mechanism of high-rotation-speed motor and high-rotation-speed motor |
| CN114157078B (en) * | 2021-11-30 | 2023-08-29 | 合肥巨一动力***有限公司 | Oil storage mechanism of high-rotation-speed motor and high-rotation-speed motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201509123U (en) | Hub motor system and lubricating system thereof | |
| CN213206520U (en) | Lubricating structure for speed reducing motor input shaft spline | |
| CN115681469A (en) | Planet row lubricating structure, hybrid electric drive assembly and vehicle | |
| CN110375059B (en) | Traction motor bearing sealing structure and installation method | |
| JPS6216348B2 (en) | ||
| CN114673780A (en) | Differential mechanism's initiative lubricating structure that contains differential lock | |
| CN110962505B (en) | Drive axle and vehicle with same | |
| CN206175503U (en) | Spline with lubricating structure | |
| CN216555022U (en) | Novel thin oil lubrication tooth type coupling | |
| CN220015977U (en) | Differential mechanism, gearbox assembly and vehicle | |
| CN216618491U (en) | Automobile input shaft spline self-lubricating device | |
| CN211145309U (en) | Spline oil lubricating structure for electric automobile power assembly | |
| CN218882969U (en) | Coupling device with cooling and lubricating structure | |
| CN2448991Y (en) | Drum shape tooth type shaft coupling seal | |
| CN214248251U (en) | Drive arrangement and vehicle with oil exchange | |
| CN217762021U (en) | Planetary gear assembly with lubricating oil channel | |
| CN220930127U (en) | Gearbox for electric engineering machinery and electric engineering machinery | |
| CN213685210U (en) | Motor spline lubricating structure | |
| CN219692202U (en) | Main reducer assembly of electric axle | |
| CN2173327Y (en) | Mchinery gearing device | |
| CN218468171U (en) | Planetary reducer with lubricating structure | |
| CN211599408U (en) | Combined speed reducer | |
| CN214146502U (en) | Output flange plate and rear auxiliary box assembly with oil seal lubricating function | |
| CN211720418U (en) | Motor shaft and coaxial centering structure of reduction gear axle in electric drive assembly | |
| CN217271833U (en) | High-speed end structure of speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |