CN219734191U - Oil guide structure for guaranteeing lubrication of bearings at rear ends of input shaft and intermediate shaft of speed reducer - Google Patents
Oil guide structure for guaranteeing lubrication of bearings at rear ends of input shaft and intermediate shaft of speed reducer Download PDFInfo
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- CN219734191U CN219734191U CN202321306235.4U CN202321306235U CN219734191U CN 219734191 U CN219734191 U CN 219734191U CN 202321306235 U CN202321306235 U CN 202321306235U CN 219734191 U CN219734191 U CN 219734191U
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- oil
- input shaft
- duct
- oil duct
- interception
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- 238000005461 lubrication Methods 0.000 title claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 14
- 239000003921 oil Substances 0.000 claims abstract description 132
- 239000010687 lubricating oil Substances 0.000 claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000009747 swallowing Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an oil guide structure for guaranteeing lubrication of bearings at the rear ends of an input shaft and an intermediate shaft of a speed reducer, which comprises a front shell and a rear shell, wherein an interception oil duct capable of intercepting splash lubricating oil and a drainage oil duct arranged on the side wall of the rear shell are arranged at the top parts of the front shell and the rear shell, the upper ends of the interception oil duct and the drainage oil duct are communicated with each other on the rear shell, and the lower end of the drainage oil duct is communicated with the rear bearing position of the input shaft and the rear bearing position of the intermediate shaft. Further, the section of the interception oil duct is C-shaped, one side is an oil-swallowing port, the bottom is an oil groove I, and the oil-swallowing port faces to the direction of splashing lubricating oil. The device has the advantages that the input shaft and the intermediate shaft bearing on one side of the rear shell can be ensured to receive sufficient splash lubricating oil; the structure is simple and reasonable, and the assembly of the front shell and the rear shell is not influenced.
Description
Technical Field
The utility model relates to an oil guide structure for splashing lubrication of a rear end bearing of an input shaft and an intermediate shaft of a new energy speed reducer, and belongs to the technical field of speed reducer lubrication.
Background
In the new energy electric drive speed reducer, in order to match the development trend of the motor to the high rotation speed direction, the speed ratio of the speed reducer is increased, so that the output of the same speed is ensured. The secondary reduction ratio increases accordingly, i.e. the rotational speed of the input shaft is highest, followed by the intermediate shaft, among the input shaft, the intermediate shaft and the output shaft. With higher input speeds, the lubrication requirements of the bearings of the input shaft and the intermediate shaft are also increasing.
The splash lubricated drive wheel is the main reduction gear, i.e. the main reduction gear agitates the gear so that the bottom lubrication oil is splashed. Because the main reduction gear is a helical gear, the inclination direction of the main reduction gear is inclined from one side of the rear shell to the rear side of the front shell in the rotation direction of the gear, and therefore, when the main reduction gear rotates, the lubricating oil in the tooth grooves of the main reduction gear can splash along the inclined tooth grooves to the direction of the front shell while flowing, so that more lubricating oil splashes on one side of the front shell. And the side of the rear shell is the side with less splashing lubricating oil, so that the input shaft and the intermediate shaft bearing at the side of the rear shell receive less splashing lubricating oil, and the risk of poor lubrication exists.
Disclosure of Invention
The utility model aims to solve the technical problems that: how to receive a sufficient amount of splash lubrication oil to the input shaft and the intermediate shaft bearings on the rear housing side.
Aiming at the problems, the technical proposal provided by the utility model is as follows:
the utility model provides a guarantee lubricated oil guide structure of reduction gear input shaft and jackshaft rear end bearing, includes preceding casing and back casing, is provided with the interception oil duct that can intercept splash lubricating oil and establishes the drainage oil duct on the back casing lateral wall at the top of preceding casing and back casing, and the upper end of interception oil duct and drainage oil duct communicates with each other on the back casing, and the drainage oil duct lower extreme communicates with each other with the input shaft rear bearing position of input shaft and jackshaft rear bearing position of jackshaft.
Further, the section of the interception oil duct is C-shaped, one side is an oil-swallowing port, the bottom is an oil groove I, and the oil-swallowing port faces to the direction of splashing lubricating oil.
Further, the interception oil duct is divided into an interception oil duct front section arranged at the top of the front shell and an interception oil duct rear section arranged at the top of the rear shell, and when the front shell and the rear shell are assembled, the interception oil duct front section and the interception oil duct rear section are in butt joint communication.
Further, the front end of the interception oil duct front section is blocked by the side wall of the front shell, and an oil leakage gap for downward oil leakage is formed in the rear section of the interception oil duct close to the side wall of the rear shell.
Further, the drainage oil duct comprises an input shaft rear bearing position drainage oil duct and an intermediate shaft rear bearing position drainage oil duct, the upper end of the input shaft rear bearing position drainage oil duct is communicated with an oil leakage notch at the rear section of the interception oil duct, the lower end of the input shaft rear bearing position is communicated with the lower end of the intermediate shaft rear bearing position drainage oil duct, the upper end of the intermediate shaft rear bearing position drainage oil duct is communicated with the input shaft rear bearing position, and the lower end of the intermediate shaft rear bearing position is communicated with the intermediate shaft rear bearing position.
Further, the rear bearing position drainage oil duct of the input shaft is provided with a second oil groove with an upward opening, and the upper end of the second oil groove is positioned below the oil leakage gap.
The beneficial effects are that: the input shaft and the intermediate shaft bearing on one side of the rear shell can be ensured to receive sufficient splash lubricating oil; the structure is simple and reasonable, and the assembly of the front shell and the rear shell is not influenced.
Drawings
FIG. 1 is a schematic perspective view of the front housing showing a portion of an oil guiding structure within the front housing;
fig. 2 is a schematic perspective view of the rear housing, showing a portion of the oil guiding structure within the rear housing.
In the figure: 1. a front housing; 2. a rear housing; 3. intercepting an oil duct; 301. intercepting the front section of the oil duct; 302. intercepting the rear section of the oil duct; 303. an oil-swallowing port; 304. an oil groove I; 305. an oil leakage gap; 4. a drainage oil duct; 401. the rear bearing position of the input shaft is provided with a drainage oil duct; 402. the rear bearing position of the intermediate shaft is provided with a drainage oil duct; 403. an oil groove II; 5. the rear bearing position of the input shaft; 6. a rear bearing position of the intermediate shaft; 7. a main subtracting gear; 8. a lubricant splash space.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1-2, an oil guiding structure for guaranteeing lubrication of bearings at the rear ends of an input shaft and an intermediate shaft of a speed reducer comprises a front shell and a rear shell, and the improvement is mainly characterized in that an interception oil duct 3 capable of intercepting splash lubricating oil and a drainage oil duct 4 arranged on the side wall of the rear shell 2 are arranged at the top of the front shell 1 and the rear shell 2, the upper ends of the interception oil duct 3 and the drainage oil duct 4 are communicated with the rear shell 2, and the lower end of the drainage oil duct 4 is communicated with an input shaft rear bearing position 5 of the input shaft and an intermediate shaft rear bearing position 6 of the intermediate shaft. The oil duct 3 intercepts a sufficient amount of lubricating oil at the tops of the front shell 1 and the rear shell 2 and is directionally conveyed to the rear bearing position 5 of the input shaft and the rear bearing position 6 of the intermediate shaft through the drainage oil duct 4 so as to lubricate the rear bearing of the input shaft and the rear bearing of the intermediate shaft, thus overcoming the defect that splash lubricating oil is gathered towards one side of the front shell caused by oblique arrangement of the gear teeth of the main reducing gear 7, and further solving the problem of insufficient lubrication oil supply of the rear bearing of the input shaft and the rear bearing of the intermediate shaft.
In order to ensure that the other positions of the front housing 1 need lubrication oil supply of the lubrication parts, a large enough lubrication oil splashing space 8 is reserved below the interception oil duct 3.
The section of the interception oil duct 3 is C-shaped, one side is an oil-swallowing port 303, the bottom is an oil groove I304, and the oil-swallowing port 303 faces the direction of splashing lubricating oil so as to intercept the lubricating oil splashed to the oil-swallowing port.
The interception oil duct 3 is divided into an interception oil duct front section 301 arranged at the top of the front casing 1 and an interception oil duct rear section 302 arranged at the top of the rear casing 2, and when the front casing 1 and the rear casing 2 are assembled, the interception oil duct front section 301 and the interception oil duct rear section 302 are in butt joint communication.
The front end of the interception oil duct front section 301 is blocked by the side wall of the front shell 1, and an oil leakage gap 305 for downward oil leakage is arranged at the position, close to the side wall of the rear shell 2, of the interception oil duct rear section 302.
The drainage oil duct 4 comprises an input shaft rear bearing position drainage oil duct 401 and an intermediate shaft rear bearing position drainage oil duct 402, wherein the upper end of the input shaft rear bearing position drainage oil duct 401 is communicated with an oil leakage gap 305 of the interception oil duct rear section 302, the lower end of the input shaft rear bearing position 5 is communicated with the lower end of the intermediate shaft rear bearing position drainage oil duct 402, the upper end of the intermediate shaft rear bearing position drainage oil duct 402 is communicated with the input shaft rear bearing position 5, and the lower end of the intermediate shaft rear bearing position 6 is communicated with the intermediate shaft rear bearing position 6.
The rear bearing position drainage oil duct 401 of the input shaft is provided with a second oil groove 403 with an upward opening, and the upper end of the second oil groove 403 is positioned below the oil leakage notch 305.
When the device is applied, the interception oil duct 3 intercepts a sufficient amount of splashing lubricating oil which is splashed up by the rotation of the main reduction gear 7 at the top of the cavity of the speed reducer by utilizing the oil swallowing port 303, flows to the oil leakage gap 305 of the rear section 302 of the interception oil duct through the first oil groove 304, flows downwards into the second oil groove 403 of the rear bearing position drainage oil duct 401 of the input shaft through the oil leakage gap 305, flows into the rear bearing position 5 of the input shaft through the second oil groove 403, and enters the rear bearing position 6 of the intermediate shaft through the rear bearing position drainage oil duct 402 after the lubrication of the rear bearing of the input shaft is met, so that the rear bearing of the intermediate shaft is lubricated.
The above embodiments are only for the purpose of more clearly describing the present utility model and should not be construed as limiting the scope of the present utility model, and any equivalent modifications should be construed as falling within the scope of the present utility model.
Claims (6)
1. The utility model provides a guarantee lubricated oily structure of guide of reduction gear input shaft and jackshaft rear end bearing, includes preceding casing and rear housing, its characterized in that: the top of preceding casing (1) and back casing (2) is provided with interception oil duct (3) that can intercept splash lubricating oil and establishes drainage oil duct (4) on back casing (2) lateral wall, and the upper end of interception oil duct (3) and drainage oil duct (4) communicates with each other on back casing (2), and the bearing position (6) behind the jackshaft behind bearing position (5) and jackshaft behind the input shaft behind drainage oil duct (4) lower extreme and the input shaft.
2. The oil guiding structure for guaranteeing bearing lubrication at the rear ends of an input shaft and an intermediate shaft of a speed reducer according to claim 1, wherein the section of the interception oil duct (3) is C-shaped, one side is an oil swallowing port (303), the bottom is an oil groove I (304), and the oil swallowing port (303) faces to the direction of splashing lubricating oil.
3. The oil guide structure for guaranteeing lubrication of bearings at the rear ends of an input shaft and an intermediate shaft of a speed reducer according to claim 1, wherein the interception oil duct (3) is divided into an interception oil duct front section (301) arranged at the top of the front casing (1) and an interception oil duct rear section (302) arranged at the top of the rear casing (2), and the interception oil duct front section (301) and the interception oil duct rear section (302) are in butt joint communication when the front casing (1) and the rear casing (2) are assembled.
4. The oil guide structure for guaranteeing lubrication of bearings at the rear ends of an input shaft and an intermediate shaft of a speed reducer according to claim 3, wherein the front end of the interception oil duct front section (301) is blocked by the side wall of the front shell (1), and an oil leakage gap (305) for downward oil leakage is formed at the position, close to the side wall of the rear shell (2), of the interception oil duct rear section (302).
5. The oil guiding structure for guaranteeing lubrication of bearings at the rear ends of an input shaft and an intermediate shaft of a speed reducer according to claim 4, wherein the oil guiding duct (4) comprises an input shaft rear bearing position oil guiding duct (401) and an intermediate shaft rear bearing position oil guiding duct (402), the upper end of the input shaft rear bearing position oil guiding duct (401) is communicated with an oil leakage notch (305) of a rear section (302) of an interception oil duct, the lower end of the input shaft rear bearing position (5) is communicated with the lower end of the intermediate shaft rear bearing position oil guiding duct (402), the upper end of the intermediate shaft rear bearing position oil guiding duct (402) is communicated with the input shaft rear bearing position (5), and the lower end of the intermediate shaft rear bearing position (6) is communicated with the intermediate shaft rear bearing position.
6. The oil guiding structure for guaranteeing bearing lubrication at the rear ends of an input shaft and an intermediate shaft of a speed reducer according to claim 5, wherein the rear bearing position drainage oil duct (401) of the input shaft is provided with a second oil groove (403) with an upward opening, and the upper end of the second oil groove (403) is located below an oil leakage notch (305).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321306235.4U CN219734191U (en) | 2023-05-26 | 2023-05-26 | Oil guide structure for guaranteeing lubrication of bearings at rear ends of input shaft and intermediate shaft of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321306235.4U CN219734191U (en) | 2023-05-26 | 2023-05-26 | Oil guide structure for guaranteeing lubrication of bearings at rear ends of input shaft and intermediate shaft of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734191U true CN219734191U (en) | 2023-09-22 |
Family
ID=88056498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321306235.4U Active CN219734191U (en) | 2023-05-26 | 2023-05-26 | Oil guide structure for guaranteeing lubrication of bearings at rear ends of input shaft and intermediate shaft of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734191U (en) |
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2023
- 2023-05-26 CN CN202321306235.4U patent/CN219734191U/en active Active
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