CN112360956A - Lubricating system of gear box - Google Patents
Lubricating system of gear box Download PDFInfo
- Publication number
- CN112360956A CN112360956A CN202011340817.5A CN202011340817A CN112360956A CN 112360956 A CN112360956 A CN 112360956A CN 202011340817 A CN202011340817 A CN 202011340817A CN 112360956 A CN112360956 A CN 112360956A
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- China
- Prior art keywords
- oil
- bearing seat
- box body
- input bearing
- input
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/03—Gearboxes; Mounting gearing therein characterised by means for reinforcing gearboxes, e.g. ribs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of gear boxes, in particular to a lubricating system of a gear box, which comprises an upper box body and an input bearing seat, wherein the input bearing seat is fixed on the upper box body, an oil collecting ring is arranged on the inner side of the axis direction of the input bearing seat, an oil baffle plate is arranged below the inner ring of the oil collecting ring, an input bearing is arranged on the input bearing seat, a rotating shaft is arranged on the input bearing, the outer side of the input bearing seat is sealed by a box body, the oil baffle plate is arranged on the inner side of the input bearing seat, in the working process of the gear box, splashed lubricating oil is driven by a gear to enter the input bearing seat where the oil baffle plate is arranged, the lubricating oil lubricates the input bearing, when the gear box is in a stop state, the lubricating oil can not flow to the bottom of the gear box under the action of the oil baffle plate, so that the, the service life of the bearing is prolonged.
Description
Technical Field
The invention relates to the technical field of gear boxes, in particular to a lubricating system of a gear box.
Background
The high-speed rotation of current gear box mostly through the gear, get rid of lubricating oil to the box inner wall under the effect of centrifugal force, lubricating oil flows the oil trap on the gear box inner wall, flow to lubricate bearing and pivot on the bearing through the oil trap, improve the lubrication effect of bearing, but because the change of gear box structure, the bearing lubrication environment in the partial gear box is comparatively abominable, the lubricated demand of bearing can not be satisfied to traditional one-time oil trap lubricating structure, make the life-span of bearing subtract weak point, the gear reliability reduces, and bearing in traditional gear box is under the shutdown state, do not soak in lubricating oil, make the damage to the bearing when starting very big, the service life of bearing is reduced, the cost is increased.
Disclosure of Invention
The invention aims to: the lubricating system of the gearbox is provided aiming at the problem that in the prior art, when the traditional gearbox is in a shutdown state, a bearing is not soaked in lubricating oil, so that the bearing is greatly damaged in the starting process.
In order to achieve the purpose, the invention adopts the technical scheme that:
the lubricating system of the gearbox comprises an upper box body and an input bearing seat, wherein the input bearing seat is fixed on the upper box body, an oil collecting ring is arranged on the inner side of the axis direction of the input bearing seat, and an oil baffle plate is arranged below an inner ring of the oil collecting ring.
As a preferable scheme of the invention, a first-stage oil collecting tank is arranged in the upper box body, a first oil hole communicated with the first-stage oil collecting tank is arranged on the upper box body, a second oil hole is arranged on the input bearing seat, one end of the second oil hole is communicated with the first oil hole, the other end of the second oil hole is communicated with the inner ring of the input bearing seat, two second-stage oil collecting tanks are arranged on two sides of the oil collecting ring, a third oil hole is arranged on the input bearing seat, one end of the third oil hole is communicated with the second-stage oil collecting tank, the other end of the third oil hole is communicated with the inner ring of the input bearing seat, the first-stage oil collecting tank and the second-stage oil collecting tank are arranged in the input bearing seat of the gear box, so that the splashed lubricating oil driven by the gear respectively lubricates the bearing arranged in the input bearing, the multi-point lubrication of the bearing is realized, the lubrication effect of the bearing in the input bearing seat is improved, the service life of the bearing is prolonged, and the cost is reduced.
As a preferable scheme of the invention, the lubricating system of the gear box further comprises a lower box body and an output shaft bearing seat, the upper box body is fixedly connected with the lower box body, the output shaft bearing seat is fixed between the upper box body and the lower box body, an output oil collecting tank is further arranged on the upper box body, a fourth oil hole communicated with the output oil collecting tank is arranged on the upper box body, a fifth oil hole communicated with the fourth oil hole is arranged on the output shaft bearing seat, a gear in the gear box rotates to splash lubricating oil on the output oil collecting tank, the lubricating oil enters the output shaft bearing seat to lubricate the bearing, the lubricating efficiency of the bearing and the output shaft is ensured, and the power transmission performance is improved.
As a preferable scheme of the invention, an oil baffle plate is arranged below an inner ring of the oil collecting ring, so that the lower part of a bearing arranged on an input bearing seat is soaked in lubricating oil, and the bearing damage caused by dry grinding of the bearing at the moment of starting is avoided.
As a preferable scheme of the invention, the lower part of the lower box body is provided with an oil pool, lubricating oil is placed in the oil pool, and the lubricating oil is driven to splash through the rotation of the gear to lubricate the bearing, the rotating shaft and the gear.
As a preferable scheme of the present invention, an oil baffle is disposed inside the output bearing seat, so that a lower portion of a bearing mounted on the output bearing seat is soaked in lubricating oil, thereby preventing damage to the bearing due to dry grinding of the bearing at the moment of starting.
As a preferable scheme of the invention, the output bearing seats are arranged on both sides of the upper box body and the lower box body, the central axes of the two output bearing seats are overlapped, the central axis of the input bearing seat is vertical to the central axis of the output bearing seat, the box body is used for mounting a bevel gear, and the two output bearing seats are convenient for mounting an output rotating shaft.
As the preferable scheme of the invention, the outer sides of the upper box body and the lower box body are both provided with the reinforcing ribs, so that the integral structural strength of the box body is increased.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. install input bearing on the input bearing frame, and install the pivot on input bearing, it is sealed that the box is passed through in the outside of input bearing frame, the inboard of input bearing frame is provided with the oil baffle, in the gear box working process, the lubricating oil that the gear drove and splashes gets into in the input bearing frame at oil baffle place, lubricating oil lubricates input bearing, when the gear box is in the shutdown state, lubricating oil can not flow to the bottom of gear box under the effect of oil baffle, make input bearing soak in lubricating oil always, the damage of bearing when starting the gear box so reducible, the life of bearing has been prolonged.
Drawings
FIG. 1 is a schematic structural view of a gearbox housing;
FIG. 2 is a schematic structural view of the output bearing block removed;
FIG. 3 is a perspective view taken along the line A in FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is a cross-sectional view of C-C of FIG. 3;
FIG. 6 is a cross-sectional view D-D of FIG. 3;
FIG. 7 is a schematic structural view of the upper case;
FIG. 8 is a schematic view of the oil collecting ring;
FIG. 9 is a schematic view of the structure of the input bearing seat assembled with the oil collecting ring;
the labels in the figure are: 1-an upper box body, 2-a lower box body, 3-an input bearing seat, 4-an output bearing seat, 5-a primary oil collecting tank, 6-a first oil hole, 7-a second oil hole, 8-an oil collecting ring, 9-a secondary oil collecting tank, 10-a third oil hole, 11-an output oil collecting tank, 12-a fourth oil hole, 13-a fifth oil hole, 14-an oil baffle, 15-an oil pool and 16-a reinforcing rib.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1 to 9, in the sectional views of fig. 4 to 6, in order to facilitate understanding, an oil sump 15 is rotated to the bottom, and a lubrication system of a gear box comprises an upper box 1, a lower box 2, an input bearing seat 3 and an output bearing seat 4, wherein the upper box 1 is fixedly connected with the lower box 2, the input bearing seat 3 is fixed on the upper box 1, the output bearing seat 4 is fixed between the upper box 1 and the lower box 2, a primary oil collecting tank 5 is arranged inside the upper box 1, a first oil hole 6 communicated with the primary oil collecting tank 5 is arranged on the upper box 1, a second oil hole 7 is arranged on the input bearing seat 3, one end of the second oil hole 7 is communicated with the first oil hole 6, the other end of the second oil hole 7 is communicated with an inner ring of the input bearing seat 3, an oil collecting ring 8 is arranged on the side surface of the input bearing seat 3 close to the inside of the box, and two sides of the oil collecting ring 8 are provided The input bearing pedestal 3 is provided with a third oil hole 10, one end of the third oil hole 10 is communicated with the second oil collecting groove 9, and the other end of the third oil hole 10 is communicated with the inner ring of the input bearing pedestal 3, in the embodiment, the side surface of the input bearing pedestal 3 close to the inside of the box body refers to the side close to the center of the box body, namely the side arranged inside the box body, and the second oil hole 7 and the third oil hole 10 are communicated with the inner ring of the input bearing pedestal 7 to transmit lubricating oil to the bearing for lubricating the bearing; the oil collecting ring 8 is fixed with the side surface of the input bearing seat 3 through a bolt, and the secondary oil collecting groove 9 is arranged on one side of the oil collecting ring 8, which is far away from the input bearing seat 3, so that splashed lubricating oil can conveniently enter the secondary oil collecting groove 9.
As shown in fig. 5, an output oil collecting tank 11 is further arranged on the upper box body 1, a fourth oil hole 12 communicated with the output oil collecting tank 11 is arranged on the upper box body 1, a fifth oil hole 13 communicated with the fourth oil hole 12 is arranged on the output shaft bearing seat 4, gears inside the gear box rotate to splash lubricating oil on the output oil collecting tank 11, and the lubricating oil enters the output shaft bearing seat 4 to lubricate a bearing, so that the lubricating efficiency of the bearing and the output shaft is ensured, and the power transmission performance is improved.
As shown in fig. 8 and 9, an oil baffle plate 14 is disposed below the inner ring of the oil collecting ring 8, so that the lower portion of the bearing mounted on the input bearing seat 3 is soaked in the lubricating oil, thereby preventing the bearing from being damaged due to dry grinding of the bearing at the moment of starting.
As shown in fig. 4, an oil sump 15 is disposed at a lower portion of the lower housing 2, and the lubricating oil is placed in the oil sump 15, and is splashed by the rotation of the gear, thereby lubricating the bearing, the rotating shaft, and the gear.
As shown in fig. 2, an oil baffle plate 14 is disposed inside the output shaft bearing seat 4, so as to immerse the lower portion of the bearing mounted on the output shaft bearing seat 4 in the lubricating oil, thereby avoiding the damage of the bearing caused by dry grinding of the bearing at the moment of starting.
As shown in fig. 3, the output shaft bearings 4 are respectively arranged on two sides of the upper box body 1 and the lower box body 2, the central axes of the two output shaft bearings 4 are overlapped, the central axis of the input bearing seat 3 is perpendicular to the central axis of the output shaft bearing 4, the box body is used for installing a bevel gear, and the two output bearing seats are convenient for installing an output rotating shaft.
As shown in fig. 4, the outer sides of the upper case 1 and the lower case 2 are both provided with reinforcing ribs 16, so that the overall structural strength of the case is increased.
The specific working process of the application is as follows: after bearings and a rotating shaft are arranged on an input bearing seat 3 and an output bearing seat 4, a gear is arranged inside a box body, in the rotating process of the rotating shaft, the gear drives lubricating oil to rotate to the inner wall of an upper box body 1, the lubricating oil enters a first-stage oil collecting tank 5 and enters an input bearing seat 3 through a first through hole 6 and a second oil hole 7 to lubricate the bearings arranged in the input bearing seat 3, the lubricating oil can flow to a second-stage oil collecting tank 9 and enter the input bearing seat 3 through a third oil hole 10 to lubricate the bearings arranged in the input bearing seat 3 again, the lubricating oil enters an output oil collecting tank 11 and enters an output bearing seat 4 through a fourth oil hole 12 and a fifth oil hole 13 to lubricate the bearings arranged in the output bearing seat 4, and therefore, the bearings arranged in the input bearing seat 3 are lubricated twice, and the lubricating efficiency of the bearings arranged in the input bearing seat is improved, the transmission efficiency of the vehicle power performance is improved, the cost is reduced, the oil baffle plate 8 enables the input bearing and the output bearing to be still soaked in lubricating oil in a shutdown state, damage to the bearings when the gear box is started is reduced, and the service life of the bearings is prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The lubricating system of the gearbox is characterized by comprising an upper box body (1) and an input bearing seat (3), wherein the input bearing seat (3) is fixed on the upper box body (1), an oil collecting ring (8) is arranged on the inner side of the axis direction of the input bearing seat (3), and an oil baffle plate (14) is arranged below the inner ring of the oil collecting ring (8).
2. Lubrication system for a gearbox according to claim 1, characterised in that inside the upper box (1) there is arranged a primary sump (5), the upper box body (1) is provided with a first oil hole (6) communicated with the primary oil collecting groove (5), a second oil hole (7) is arranged on the input bearing seat (3), one end of the second oil hole (7) is communicated with the first oil hole (6), the other end of the second oil hole (7) is communicated with the inner ring of the input bearing seat (3), two sides of the oil collecting ring (8) are provided with a secondary oil collecting groove (9), the input bearing seat (3) is provided with a third oil hole (10), one end of the third oil hole (10) is communicated with the secondary oil collecting groove (9), the other end of the third oil hole (10) is communicated with an inner ring of the input bearing seat (3).
3. The lubrication system of the gearbox according to claim 2, further comprising a lower box body (2) and an output bearing seat (4), wherein the upper box body (1) is fixedly connected with the lower box body (2), the output bearing seat (4) is fixed between the upper box body (1) and the lower box body (2), an output oil collecting tank (11) is further arranged on the upper box body (1), a fourth oil hole (12) communicated with the output oil collecting tank (11) is arranged on the upper box body (1), and a fifth oil hole (13) communicated with the fourth oil hole (12) is arranged on the output bearing seat (4).
4. Lubrication system for a gearbox according to claim 3, characterised in that the lower part of the lower box (2) is provided with an oil sump (15).
5. Lubrication system for a gearbox according to claim 3, characterised in that the inside of the output bearing housing (4) is provided with an oil deflector (14).
6. A lubrication system for a gearbox according to claim 3, characterised in that the output bearing housings (4) are arranged on both sides of the upper housing (1) and the lower housing (2), the centre axes of the two output bearing housings (4) coinciding, the centre axis of the input bearing housing (3) being perpendicular to the centre axis of the output bearing housing (4).
7. Lubrication system for a gearbox according to claim 3, characterised in that the outer sides of the upper and lower cases (1, 2) are each provided with a stiffener (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011340817.5A CN112360956A (en) | 2020-11-25 | 2020-11-25 | Lubricating system of gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011340817.5A CN112360956A (en) | 2020-11-25 | 2020-11-25 | Lubricating system of gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112360956A true CN112360956A (en) | 2021-02-12 |
Family
ID=74533952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011340817.5A Pending CN112360956A (en) | 2020-11-25 | 2020-11-25 | Lubricating system of gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112360956A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045990A (en) * | 2022-08-12 | 2022-09-13 | 常州市曼多林精密机械科技有限公司 | Thin oil lubrication planetary reducer |
| CN116951097A (en) * | 2023-09-18 | 2023-10-27 | 中国重汽集团济南动力有限公司 | Driving axle lubricating system and vehicle |
| WO2024099279A1 (en) * | 2022-11-07 | 2024-05-16 | 中国重汽集团济南动力有限公司 | Oil shield, and lubricating structure for high-speed bearing of electric drive axle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222161A (en) * | 2008-03-17 | 2009-10-01 | Toyota Motor Corp | Lubricating structure of power transmission device |
| DE102011000571A1 (en) * | 2011-02-09 | 2012-08-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Gearbox for electrical drive module of electric vehicle e.g. convertible, has upper manifold arranged within gear housing, where lubrication oil distributed from manifold is conveyed to bearing of gearbox shafts by guiding devices |
| CN203892534U (en) * | 2014-05-19 | 2014-10-22 | 南车株洲电力机车有限公司 | Double-stage drive gear box system for urban rail transit vehicle |
| CN105443732A (en) * | 2015-12-22 | 2016-03-30 | 常州市瑞泰工程机械有限公司 | Hydraulic transmission axle gear box body |
| CN208237012U (en) * | 2018-04-13 | 2018-12-14 | 太原重工轨道交通设备有限公司 | 100% low-floor tramcar traction gearbox |
| CN109519520A (en) * | 2017-09-20 | 2019-03-26 | 东风德纳车桥有限公司 | A kind of reducing gearbox of self-lubricating |
| CN111412266A (en) * | 2020-03-26 | 2020-07-14 | 东风汽车集团有限公司 | Mounting structure suitable for hybrid transmission motor gear shaft |
-
2020
- 2020-11-25 CN CN202011340817.5A patent/CN112360956A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222161A (en) * | 2008-03-17 | 2009-10-01 | Toyota Motor Corp | Lubricating structure of power transmission device |
| DE102011000571A1 (en) * | 2011-02-09 | 2012-08-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Gearbox for electrical drive module of electric vehicle e.g. convertible, has upper manifold arranged within gear housing, where lubrication oil distributed from manifold is conveyed to bearing of gearbox shafts by guiding devices |
| CN203892534U (en) * | 2014-05-19 | 2014-10-22 | 南车株洲电力机车有限公司 | Double-stage drive gear box system for urban rail transit vehicle |
| CN105443732A (en) * | 2015-12-22 | 2016-03-30 | 常州市瑞泰工程机械有限公司 | Hydraulic transmission axle gear box body |
| CN109519520A (en) * | 2017-09-20 | 2019-03-26 | 东风德纳车桥有限公司 | A kind of reducing gearbox of self-lubricating |
| CN208237012U (en) * | 2018-04-13 | 2018-12-14 | 太原重工轨道交通设备有限公司 | 100% low-floor tramcar traction gearbox |
| CN111412266A (en) * | 2020-03-26 | 2020-07-14 | 东风汽车集团有限公司 | Mounting structure suitable for hybrid transmission motor gear shaft |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045990A (en) * | 2022-08-12 | 2022-09-13 | 常州市曼多林精密机械科技有限公司 | Thin oil lubrication planetary reducer |
| WO2024099279A1 (en) * | 2022-11-07 | 2024-05-16 | 中国重汽集团济南动力有限公司 | Oil shield, and lubricating structure for high-speed bearing of electric drive axle |
| CN116951097A (en) * | 2023-09-18 | 2023-10-27 | 中国重汽集团济南动力有限公司 | Driving axle lubricating system and vehicle |
| CN116951097B (en) * | 2023-09-18 | 2024-01-23 | 中国重汽集团济南动力有限公司 | Driving axle lubricating system and vehicle |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210212 |