CN116951097B - Driving axle lubricating system and vehicle - Google Patents
Driving axle lubricating system and vehicle Download PDFInfo
- Publication number
- CN116951097B CN116951097B CN202311197509.5A CN202311197509A CN116951097B CN 116951097 B CN116951097 B CN 116951097B CN 202311197509 A CN202311197509 A CN 202311197509A CN 116951097 B CN116951097 B CN 116951097B
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- bearing
- oil
- disc
- ribs
- storage tank
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 94
- 238000005461 lubrication Methods 0.000 claims abstract description 63
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 230000007935 neutral effect Effects 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 161
- 238000010586 diagram Methods 0.000 description 6
- 239000005068 cooling lubricant Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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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
- F16H57/0018—Shaft assemblies for gearings
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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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
-
- 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
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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
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention provides a drive axle lubrication system and a vehicle. The invention provides a drive axle lubrication system which comprises a rotating shaft, a speed reducer, an oil stirring disc and a bearing assembly, wherein the bearing assembly comprises a bearing and a bearing seat; the oil stirring disc is positioned between the bearing seat and the speed reducer and is fixedly connected with the speed reducer; the oil stirring disc comprises a disc body and a plurality of ribs, the ribs are arranged on the disc surface of the disc body facing the bearing seat, and each rib extends along the radial direction of the oil stirring disc so as to throw cooling lubricating liquid flowing into the oil stirring disc into an oil storage tank of the bearing seat through the ribs. The invention provides a drive axle lubrication system and a vehicle, which can provide sufficient cooling and lubrication effects for bearings in the drive axle under the working conditions of neutral gear sliding and trailer.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a drive axle lubrication system and a vehicle.
Background
A transaxle generally refers to a mechanism located at the end of a vehicle driveline that is capable of varying rotational speed and torque from a transmission and transmitting the rotational speed and torque to drive wheels. The existing drive axle, in particular to an electric drive axle, mainly comprises an integral drive axle, wherein the integral drive axle comprises a central motor drive scheme, an integrated parallel shaft drive scheme, an integrated coaxial drive scheme, a wheel motor drive scheme and the like, and the integrated parallel shaft drive scheme is widely applied. Because the integrated parallel shaft driving scheme is that the driving motor is directly connected with the driving axle, the rotating speed is higher, and the internal transmission system needs to be designed into multi-stage speed reduction, the lubrication and cooling problems of the internal shafting, the gear train and the bearing system of the driving axle under different working conditions such as high rotating speed and the like are caused.
At present, a parallel shaft drive axle mainly uses a splash lubrication technology to cool and lubricate a bearing, and specifically, the splash lubrication technology mainly relies on rotation of an internal gear train to bring up cooling lubrication liquid, and relies on gear whipping cooling lubrication liquid to lubricate the bearing. The lubrication mode can meet the bearing lubrication requirement under the common working condition, but under the working conditions of trailer and neutral gear sliding, partial gears cannot rotate, so that the bearing is possibly insufficient in cooling, lubrication and cooling, and the bearing abrasion is aggravated.
Disclosure of Invention
In order to solve at least one of the problems mentioned in the background art, the present invention provides a drive axle lubrication system and a vehicle, which can provide sufficient cooling and lubrication effects for bearings in the drive axle under the conditions of vehicle neutral running and trailer.
In order to achieve the above object, the present invention provides the following technical solutions:
in a first aspect, the invention provides a drive axle lubrication system, comprising a rotating shaft, a speed reducer, an oil stirring disc and a bearing assembly, wherein the bearing assembly comprises a bearing and a bearing seat, the speed reducer, the oil stirring disc and the bearing seat are arranged on the rotating shaft along the axial direction of the rotating shaft, the bearing is arranged between the bearing seat and the rotating shaft, an oil storage tank is arranged on the side surface of the bearing seat, a through hole is arranged on the inner wall of the oil storage tank, and the through hole is communicated with the oil storage tank and the bearing;
the oil stirring disc is positioned between the bearing seat and the speed reducer and is fixedly connected with the speed reducer; the oil stirring disc comprises a disc body and a plurality of ribs, the ribs are arranged on the disc surface of the disc body facing the bearing seat, the disc body is in a revolving body structure, the ribs extend along the radial direction of the oil stirring disc, the ribs are distributed along the circumferential direction of the oil stirring disc so as to throw cooling lubricating liquid flowing into the oil storage tank of the bearing seat through the ribs, and the cooling lubricating liquid in the oil storage tank flows into the bearing through the through holes so as to cool and lubricate the bearing.
As an alternative embodiment, the end faces of the ribs facing away from the disk body form a preset included angle with the disk surface, and the ribs throw the cooling lubricating liquid flowing to the oil stirring disk into the oil storage groove of the bearing seat through the end faces.
As an alternative embodiment, the ribs extend radially to the rim of the disc.
As an alternative embodiment, the oil reservoir extends axially through the side wall of the bearing block.
As an alternative embodiment, the side of the oil reservoir facing away from the drip pan is covered with a baffle.
As an alternative implementation mode, the side wall of the bearing seat is also provided with an oil supplementing hole penetrating along the axial direction.
As an alternative embodiment, the oil storage tanks are multiple, and the oil storage tanks are distributed on the bearing seat along the circumferential direction, and each oil storage tank is provided with a through hole.
As an alternative embodiment, the side of the reducer has a male threaded connection; the disc surface is also provided with a plurality of avoidance openings, the avoidance openings are correspondingly arranged with the threaded connecting pieces, and the avoidance openings are used for avoiding the threaded connecting pieces.
As an alternative embodiment, the device further comprises a gear, the gear is arranged on the rotating shaft, and the bearing seat is arranged between the gear and the oil stirring disc.
In a second aspect, the present invention also provides a vehicle comprising a chassis comprising any one of the axle lubrication systems of the first aspect.
The invention provides a drive axle lubrication system which comprises a rotating shaft, a speed reducer, an oil stirring disc and a bearing assembly, wherein the bearing assembly comprises a bearing and a bearing seat; the oil stirring disc is positioned between the bearing seat and the speed reducer and is fixedly connected with the speed reducer; the oil stirring disc comprises a disc body and a plurality of ribs, the ribs are arranged on the disc surface of the disc body facing the bearing seat, the disc body is in a revolving body structure, the ribs extend along the radial direction of the oil stirring disc, the ribs are distributed along the circumferential direction of the oil stirring disc so as to throw cooling lubricating liquid flowing into the oil storage tank of the bearing seat through the ribs, and the cooling lubricating liquid in the oil storage tank flows into the bearing through the through holes so as to cool and lubricate the bearing. According to the driving axle lubricating system provided by the invention, the oil stirring disc is fixedly connected with the speed reducer through the oil stirring disc arranged between the speed reducer and the bearing seat, one surface of the oil stirring disc, which faces the bearing seat, is provided with the plurality of ribs extending along the radial direction, one side of the bearing seat is provided with the oil storage groove, the oil storage groove is communicated with the bearing through the through hole, when a vehicle is in a neutral gear sliding or trailer state, the speed reducer still has a rotating speed, the speed reducer can drive the oil stirring disc to rotate together, the rotating oil stirring disc can lift and throw cooling lubricating liquid at the bottom of the driving axle to the oil storage groove on the side wall of the bearing seat through the plurality of ribs arranged on the oil stirring disc, and the cooling lubricating liquid in the oil storage groove can flow into the bearing through the through hole to cool and lubricate the bearing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a lubrication system for a drive axle according to an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
fig. 4 is a schematic view of a first structure of a bearing seat in a lubrication system of a driving axle according to an embodiment of the present invention;
fig. 5 is a schematic view of a second structure of a bearing seat in a lubrication system of a driving axle according to an embodiment of the present invention;
fig. 6 is a schematic view of a third structure of a bearing seat in a lubrication system of a driving axle according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a lubricating system for a drive axle according to an embodiment of the present invention;
FIG. 8 is a side view of FIG. 7;
fig. 9 is a schematic structural diagram of a speed reducer in a lubrication system of a driving axle according to an embodiment of the present invention.
Reference numerals illustrate:
100-drive axle lubrication system;
110-a rotating shaft;
120-speed reducer;
121-a threaded connection;
130-a stirred oil pan;
131-a tray;
132-ribs;
133-a relief opening;
140-bearing assembly;
141-bearing seats;
1411-an oil reservoir;
1412-through holes;
1413-an oil supplementing hole;
142-bearings;
150-gear;
160-baffle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
At present, a drive axle mainly uses a splash lubrication technology to cool and lubricate a bearing, and specifically, the splash lubrication technology mainly relies on rotation of an internal gear train to bring up cooling and lubricating liquid, and relies on gears to swing and cool and lubricate the bearing. The lubrication mode can meet the bearing lubrication requirement under the common working condition, but under the working conditions of trailer and neutral gear sliding, partial gears cannot rotate, so that the bearing is possibly insufficient in cooling, lubrication and cooling, and the bearing abrasion is aggravated.
In view of the above, the invention provides a drive axle lubrication system, comprising a rotating shaft, a speed reducer, an oil stirring disc and a bearing assembly, wherein the bearing assembly comprises a bearing and a bearing seat, the speed reducer, the oil stirring disc and the bearing seat are arranged on the rotating shaft along the axial direction of the rotating shaft, the bearing is arranged between the bearing seat and the rotating shaft, an oil storage tank is arranged on the side surface of the bearing seat, a through hole is arranged on the inner wall of the oil storage tank, and the through hole is communicated with the oil storage tank and the bearing; the oil stirring disc is positioned between the bearing seat and the speed reducer and is fixedly connected with the speed reducer; the oil stirring disc comprises a disc body and a plurality of ribs, the ribs are arranged on the disc surface of the disc body facing the bearing seat, the disc body is in a revolving body structure, the ribs extend along the radial direction of the oil stirring disc, the ribs are distributed along the circumferential direction of the oil stirring disc so as to throw cooling lubricating liquid flowing into the oil storage tank of the bearing seat through the ribs, and the cooling lubricating liquid in the oil storage tank flows into the bearing through the through holes so as to cool and lubricate the bearing. According to the driving axle lubricating system provided by the invention, the oil stirring disc is fixedly connected with the speed reducer through the oil stirring disc arranged between the speed reducer and the bearing seat, one surface of the oil stirring disc, which faces the bearing seat, is provided with the plurality of ribs extending along the radial direction, one side of the bearing seat is provided with the oil storage groove, the oil storage groove is communicated with the bearing through the through hole, when a vehicle is in a neutral gear sliding or trailer state, the speed reducer still has a rotating speed, the speed reducer can drive the oil stirring disc to rotate together, the rotating oil stirring disc can lift and throw cooling lubricating liquid at the bottom of the driving axle to the oil storage groove on the side wall of the bearing seat through the plurality of ribs arranged on the oil stirring disc, and the cooling lubricating liquid in the oil storage groove can flow into the bearing through the through hole to cool and lubricate the bearing.
FIG. 1 is a schematic diagram of a lubrication system for a drive axle according to an embodiment of the present invention; FIG. 2 is an exploded view of FIG. 1; FIG. 3 is a cross-sectional view of FIG. 1; fig. 4 is a schematic view of a first structure of a bearing seat in a lubrication system of a driving axle according to an embodiment of the present invention; fig. 5 is a schematic view of a second structure of a bearing seat in a lubrication system of a driving axle according to an embodiment of the present invention; fig. 6 is a schematic view of a third structure of a bearing seat in a lubrication system of a driving axle according to an embodiment of the present invention; FIG. 7 is a schematic diagram of a lubricating system for a drive axle according to an embodiment of the present invention; FIG. 8 is a side view of FIG. 7; fig. 9 is a schematic structural diagram of a speed reducer in a lubrication system of a driving axle according to an embodiment of the present invention. Referring to fig. 1 to 9, an embodiment of the present invention provides a drive axle lubrication system 100, including a rotating shaft 110, a speed reducer 120, an oil stirring disc 130, and a bearing assembly 140, where the bearing assembly 140 includes a bearing 142 and a bearing seat 141, the speed reducer 120, the oil stirring disc 130, and the bearing seat 141 are installed on the rotating shaft 110 along an axial direction of the rotating shaft 110, the bearing 142 is disposed between the bearing seat 141 and the rotating shaft 110, an oil storage tank 1411 is provided on a side surface of the bearing seat 141, a through hole 1412 is provided on an inner wall of the oil storage tank 1411, and the through hole 1412 communicates the oil storage tank 1411 with the bearing 142; the oil stirring disc 130 is positioned between the bearing seat 141 and the speed reducer 120, and the oil stirring disc 130 is fixedly connected with the speed reducer 120; the oil stirring disc 130 includes a disc body 131 and a plurality of ribs 132, the ribs 132 are arranged on the disc surface of the disc body 131 facing the bearing seat 141, the disc body 131 is in a revolving structure, each rib 132 extends along the radial direction of the oil stirring disc 130, and the ribs 132 are distributed along the circumferential direction of the oil stirring disc 130 so as to throw cooling lubricating liquid flowing to the oil stirring disc 130 into an oil storage tank 1411 of the bearing seat 141 through the ribs 132, and the cooling lubricating liquid in the oil storage tank 1411 flows into the bearing 142 through the through holes 1412 so as to cool and lubricate the bearing 142.
According to the drive axle lubrication system 100 provided by the embodiment of the invention, the oil stirring disc 130 is arranged between the speed reducer 120 and the bearing seat 141, the oil stirring disc 130 is fixedly connected with the speed reducer 120, one surface of the oil stirring disc 130 facing the bearing seat 141 is provided with the plurality of ribs 132 extending along the radial direction, one side of the bearing seat 141 is provided with the oil storage tank 1411, the oil storage tank 1411 is communicated with the bearing 142 through the through hole 1412, when a vehicle is in a neutral gear sliding or trailer state, the speed reducer 120 still has a rotating speed, the speed reducer 120 can drive the oil stirring disc 130 to rotate together, the rotating oil stirring disc 130 can take up cooling lubrication liquid at the bottom of the drive axle through the plurality of ribs 132 arranged on the oil storage tank 1411 and throw the cooling lubrication liquid to the side wall of the side bearing seat 141, and the cooling lubrication liquid in the oil storage tank 1411 can flow into the bearing 142 through the through hole 1412 to cool and lubricate the bearing 142.
As shown in fig. 7 and 8, in the above embodiment, the end surface of the rib 132 facing away from the disc body 131 may form a predetermined angle with the disc surface, and the rib 132 throws the cooling lubricant flowing to the oil pan 130 into the oil reservoir 1411 of the bearing housing 141 through the end surface. The included angle (preset included angle) between the end surface of the rib 132 and the disc surface of the oil stirring disc 130 may be specifically set according to the relative position between the oil storage tank 1411 and the rib 132, so as to ensure that the cooling and lubricating liquid may be thrown from the end surface of the rib 132 to the oil storage tank 1411.
In the above embodiment, the ribs 132 may extend to the edge of the disc 131 in the radial direction of the disc 131. It will be appreciated that the ribs 132 extending to the outer edge of the tray 131 may increase the portion of the ribs 132 immersed in the cooling and lubrication fluid when the ribs 132 are turned to the bottom, so that the oil pan 130 can take up more cooling and lubrication fluid, and the cooling and lubrication effects are improved.
In the above embodiment, the oil tank 1411 may penetrate through the side wall of the bearing housing 141 in the axial direction, so that the cooling and lubrication fluid may flow into the side of the bearing housing 141 facing away from the oil pan 130 via the oil tank 1411, and may perform overall cooling and lubrication on the bearing housing 141.
As shown in fig. 2 and 5, in the above embodiments, the side of the oil reservoir 1411 facing away from the drip pan 130 may be covered with a baffle 160. It will be appreciated that at different vehicle speeds, the flow rate of cooling lubricant sputtered by the oil pan 130 is different, and at low speed conditions, less cooling lubricant is thrown out of the oil pan 130; under high-speed working conditions, more cooling and lubricating liquid is thrown out of the oil stirring disc 130, and in order to better match different vehicle speed working conditions, the baffle 160 can be welded on one side of the oil storage tank 1411, which is away from the oil stirring disc 130, and one side of the oil storage tank 1411 is blocked by the baffle 160, so that the oil storage capacity of the oil storage tank 1411 can be increased, and when the vehicle speed is reduced, the oil in the oil storage tank 1411 can provide durable and sufficient cooling and lubricating liquid for the bearing 142.
In the above embodiment, the side wall of the bearing seat 141 may be further provided with an oil supplementing hole 1413 penetrating in the axial direction. It will be appreciated that under low vehicle speed conditions, the amount of oil in the bottom partial pool between the bearing housing 141 and the reducer 120 is sufficient and the oil level decreases relatively slowly; however, under the high-speed working condition, the local oil pool oil level is reduced faster, so that the problem that oil is not timely replenished under the high-speed working condition can be well solved by arranging the oil replenishing holes 1413 on the bearing seat 141, and the condition that enough lubricating oil is supplied to the stirring disc 130 for stirring is ensured in the oil pool between the bearing seat 141 and the speed reducer 120.
In the above embodiment, the oil storage tanks 1411 may be plural, the plurality of oil storage tanks 1411 may be distributed on the bearing housing 141 along the circumferential direction of the bearing housing 141, each oil storage tank 1411 may have the through holes 1412, and more cooling and lubrication liquid sputtered from the oil pan 130 may be collected by providing the plurality of oil storage tanks 1411.
In the above embodiment, the side of the decelerator 120 may have the protruding screw connection member 121; the disc surface is also provided with a plurality of avoidance openings 133, the avoidance openings 133 and the threaded connecting pieces 121 are correspondingly arranged, and the avoidance openings 133 are used for avoiding the threaded connecting pieces 121. It will be appreciated that the side of the reducer 120 generally has protruding portions, and these protruding portions are generally heads of bolts for connecting the reducer 120, so that the oil-stirring pan 130 may be provided with avoiding openings 133 corresponding to the shapes and positions of the heads of the bolts, and when the oil-stirring pan 130 is fixedly connected to the reducer 120, these avoiding openings on the oil-stirring pan 130 may be clamped at the heads of the bolts, so as to improve the installation stability of the oil-stirring pan 130 on the reducer 120.
In the above embodiment, the gear 150 may be further included, the gear 150 is mounted on the rotating shaft 110, and the bearing housing 141 is located between the gear 150 and the oil pan 130. It will be appreciated that during normal operation of the vehicle (non-neutral or trailer mode), the gear 150 rotates with it, and the rotating gear 150 may carry some cooling lubricant to the side bearing blocks 141 for cooling and lubrication.
The drive axle lubrication system 100 provided by the embodiment of the invention comprises a rotating shaft 110, a speed reducer 120, an oil stirring disc 130 and a bearing assembly 140, wherein the bearing assembly 140 comprises a bearing 142 and a bearing seat 141, the speed reducer 120, the oil stirring disc 130 and the bearing seat 141 are arranged on the rotating shaft 110 along the axial direction of the rotating shaft 110, the bearing 142 is arranged between the bearing seat 141 and the rotating shaft 110, an oil storage tank 1411 is arranged on the side surface of the bearing seat 141, a through hole 1412 is arranged on the inner wall of the oil storage tank 1411, and the through hole 1412 is communicated with the oil storage tank 1411 and the bearing 142; the oil stirring disc 130 is positioned between the bearing seat 141 and the speed reducer 120, and the oil stirring disc 130 is fixedly connected with the speed reducer 120; the oil stirring disc 130 includes a disc body 131 and a plurality of ribs 132, the ribs 132 are arranged on the disc surface of the disc body 131 facing the bearing seat 141, the disc body 131 is in a revolving structure, each rib 132 extends along the radial direction of the oil stirring disc 130, and the ribs 132 are distributed along the circumferential direction of the oil stirring disc 130 so as to throw cooling lubricating liquid flowing to the oil stirring disc 130 into an oil storage tank 1411 of the bearing seat 141 through the ribs 132, and the cooling lubricating liquid in the oil storage tank 1411 flows into the bearing 142 through the through holes 1412 so as to cool and lubricate the bearing 142. According to the drive axle lubrication system 100 provided by the embodiment of the invention, the oil stirring disc 130 is arranged between the speed reducer 120 and the bearing seat 141, the oil stirring disc 130 is fixedly connected with the speed reducer 120, one surface of the oil stirring disc 130 facing the bearing seat 141 is provided with the plurality of ribs 132 extending along the radial direction, one side of the bearing seat 141 is provided with the oil storage tank 1411, the oil storage tank 1411 is communicated with the bearing 142 through the through hole 1412, when a vehicle is in a neutral gear sliding or trailer state, the speed reducer 120 still has a rotating speed, the speed reducer 120 can drive the oil stirring disc 130 to rotate together, the rotating oil stirring disc 130 can take up cooling lubrication liquid at the bottom of the drive axle through the plurality of ribs 132 arranged on the oil storage tank 1411 and throw the cooling lubrication liquid to the side wall of the side bearing seat 141, and the cooling lubrication liquid in the oil storage tank 1411 can flow into the bearing 142 through the through hole 1412 to cool and lubricate the bearing 142.
In addition, the embodiment of the invention also provides a vehicle, the vehicle comprises a chassis, the chassis comprises any one of the drive axle lubrication systems 100 in the embodiment, wherein the drive axle lubrication system 100 comprises a rotating shaft 110, a speed reducer 120, an oil stirring disc 130 and a bearing assembly 140, the bearing assembly 140 comprises a bearing 142 and a bearing seat 141, the speed reducer 120, the oil stirring disc 130 and the bearing seat 141 are arranged on the rotating shaft 110 along the axial direction of the rotating shaft 110, the bearing 142 is arranged between the bearing seat 141 and the rotating shaft 110, an oil storage tank 1411 is arranged on the side surface of the bearing seat 141, a through hole 1412 is arranged on the inner wall of the oil storage tank 1411, and the through hole 1412 is communicated with the oil storage tank 1411 and the bearing 142; the oil stirring disc 130 is positioned between the bearing seat 141 and the speed reducer 120, and the oil stirring disc 130 is fixedly connected with the speed reducer 120; the oil stirring disc 130 includes a disc body 131 and a plurality of ribs 132, the ribs 132 are arranged on the disc surface of the disc body 131 facing the bearing seat 141, the disc body 131 is in a revolving structure, each rib 132 extends along the radial direction of the oil stirring disc 130, and the ribs 132 are distributed along the circumferential direction of the oil stirring disc 130 so as to throw cooling lubricating liquid flowing to the oil stirring disc 130 into an oil storage tank 1411 of the bearing seat 141 through the ribs 132, and the cooling lubricating liquid in the oil storage tank 1411 flows into the bearing 142 through the through holes 1412 so as to cool and lubricate the bearing 142. According to the drive axle lubrication system 100 provided by the embodiment of the invention, the oil stirring disc 130 is arranged between the speed reducer 120 and the bearing seat 141, the oil stirring disc 130 is fixedly connected with the speed reducer 120, one surface of the oil stirring disc 130 facing the bearing seat 141 is provided with the plurality of ribs 132 extending along the radial direction, one side of the bearing seat 141 is provided with the oil storage tank 1411, the oil storage tank 1411 is communicated with the bearing 142 through the through hole 1412, when a vehicle is in a neutral gear sliding or trailer state, the speed reducer 120 still has a rotating speed, the speed reducer 120 can drive the oil stirring disc 130 to rotate together, the rotating oil stirring disc 130 can take up and throw cooling lubricating liquid at the bottom of the drive axle to the oil storage tank 1411 on the side wall of the side bearing seat 141 through the plurality of ribs 132, and the cooling lubricating liquid in the oil storage tank 1411 can flow into the bearing 142 through the through hole 1412 to cool and lubricate the bearing 142, so that under the working conditions of the vehicle neutral gear sliding and the trailer, the sufficient lubrication effect is provided for the bearing 142 in the drive axle is realized, the wear of the bearing 142 is reduced, and the safety performance of the vehicle is improved.
Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present invention, and are not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. The utility model provides a transaxle lubricating system, its characterized in that includes pivot, reduction gear, stirring dish and bearing assembly, the bearing assembly includes bearing and bearing frame, the reduction gear, stirring dish and the bearing frame is along the axial of pivot is installed in the pivot, the bearing set up in between bearing frame and the pivot, the oil storage tank has been seted up to the side of bearing frame, the through-hole has been seted up to the inner wall of oil storage tank, the through-hole intercommunication oil storage tank with the bearing, the oil storage tank runs through along the axial the lateral wall of bearing frame, the oil storage tank deviates from the one side of stirring dish is covered with the baffle; the side wall of the bearing seat is also provided with an oil supplementing hole penetrating along the axial direction;
the oil stirring disc is positioned between the bearing seat and the speed reducer, and is fixedly connected with the speed reducer; the oil stirring disc comprises a disc body and a plurality of ribs, the ribs are arranged on the disc surface of the disc body facing the bearing seat, the disc body is in a revolving body structure, the ribs extend along the radial direction of the oil stirring disc, the ribs are distributed along the circumferential direction of the oil stirring disc so as to throw cooling lubricating liquid flowing to the oil stirring disc into an oil storage groove of the bearing seat through the ribs, and the cooling lubricating liquid in the oil storage groove flows into the bearing through the through holes so as to cool and lubricate the bearing;
when the vehicle is in a neutral gear sliding or trailer state, the speed reducer can still drive the oil stirring disc to rotate, the oil stirring disc brings the cooling lubricating liquid up through a plurality of ribs and throws the cooling lubricating liquid into the oil storage tank, and the cooling lubricating liquid in the oil storage tank flows into the bearing through the through hole so as to cool and lubricate the bearing.
2. The drive axle lubrication system of claim 1, wherein an end surface of the rib facing away from the disc body forms a preset included angle with the disc surface, and the rib throws cooling and lubrication fluid flowing to the oil pan through the end surface into an oil reservoir of the bearing housing.
3. The drive axle lubrication system of claim 2, wherein the ribs extend in the radial direction to an edge of the disc.
4. The drive axle lubrication system of claim 3, wherein the oil reservoir has a plurality of oil reservoirs circumferentially distributed on the bearing housing, each oil reservoir having the through hole.
5. The drive axle lubrication system of any one of claims 1-4, wherein the sides of the reducer have male threaded connectors; the disc surface is also provided with a plurality of avoidance openings, the avoidance openings are correspondingly arranged with the threaded connecting pieces, and the avoidance openings are used for avoiding the threaded connecting pieces.
6. The drive axle lubrication system of any one of claims 1-4, further comprising a gear mounted on the rotating shaft, the bearing housing being located between the gear and the agitator disk.
7. A vehicle comprising a chassis comprising the drive axle lubrication system of any one of claims 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311197509.5A CN116951097B (en) | 2023-09-18 | 2023-09-18 | Driving axle lubricating system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311197509.5A CN116951097B (en) | 2023-09-18 | 2023-09-18 | Driving axle lubricating system and vehicle |
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| CN116951097A CN116951097A (en) | 2023-10-27 |
| CN116951097B true CN116951097B (en) | 2024-01-23 |
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| CN202311197509.5A Active CN116951097B (en) | 2023-09-18 | 2023-09-18 | Driving axle lubricating system and vehicle |
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| CN113062972A (en) * | 2021-03-25 | 2021-07-02 | 陕西法士特齿轮有限责任公司 | Lubricating and heat-dissipating device and method for hybrid transmission |
| DE102020128934B3 (en) * | 2020-11-03 | 2021-11-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive unit for an electric vehicle |
| CN115325152A (en) * | 2022-08-22 | 2022-11-11 | 浙江华奕航空科技有限公司 | Helicopter main reducer lubricating system that splashes |
| CN219062402U (en) * | 2023-01-31 | 2023-05-23 | 潍柴动力股份有限公司 | Gearbox power take-off |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0854097A (en) * | 1994-08-09 | 1996-02-27 | Nissan Diesel Motor Co Ltd | Lubrication structure of final reduction gear differential gear for automobile |
| CN203594767U (en) * | 2013-12-03 | 2014-05-14 | 陕西汉德车桥有限公司 | Car drive axle main reducer assembly |
| CN109944928A (en) * | 2019-04-24 | 2019-06-28 | 北京长城华冠汽车科技股份有限公司 | The bearing-lubricating mechanism and speed changer of speed changer |
| DE102020128934B3 (en) * | 2020-11-03 | 2021-11-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive unit for an electric vehicle |
| CN112360956A (en) * | 2020-11-25 | 2021-02-12 | 重庆齿轮箱有限责任公司 | Lubricating system of gear box |
| CN113062972A (en) * | 2021-03-25 | 2021-07-02 | 陕西法士特齿轮有限责任公司 | Lubricating and heat-dissipating device and method for hybrid transmission |
| CN115325152A (en) * | 2022-08-22 | 2022-11-11 | 浙江华奕航空科技有限公司 | Helicopter main reducer lubricating system that splashes |
| CN219062402U (en) * | 2023-01-31 | 2023-05-23 | 潍柴动力股份有限公司 | Gearbox power take-off |
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| CN116951097A (en) | 2023-10-27 |
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