CN115264038A - Cooling and lubricating device, hybrid power type driving system and vehicle - Google Patents

Cooling and lubricating device, hybrid power type driving system and vehicle Download PDF

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Publication number
CN115264038A
CN115264038A CN202210854968.5A CN202210854968A CN115264038A CN 115264038 A CN115264038 A CN 115264038A CN 202210854968 A CN202210854968 A CN 202210854968A CN 115264038 A CN115264038 A CN 115264038A
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CN
China
Prior art keywords
oil
shell
oil collecting
cooling
cavity
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Pending
Application number
CN202210854968.5A
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Chinese (zh)
Inventor
高伟
柯孟龙
余家佳
郭振戈
孔波
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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Publication date
Application filed by Dongfeng Motor Corp filed Critical Dongfeng Motor Corp
Priority to CN202210854968.5A priority Critical patent/CN115264038A/en
Publication of CN115264038A publication Critical patent/CN115264038A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • 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
    • 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
    • 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
    • F16H57/037—Gearboxes for accommodating differential gearings
    • 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
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0417—Heat exchangers adapted or integrated in the gearing
    • 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
    • F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
    • 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
    • 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
    • F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
    • 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
    • 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
    • F16H57/0476—Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
    • 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
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention discloses a cooling and lubricating device, a hybrid power type driving system and a vehicle, and belongs to the technical field of hybrid power lubrication and cooling. The cooling and lubricating device comprises: a first housing; the second shell is connected with the first shell to form a gear cavity for accommodating a transmission shaft system; the end cover is connected with the first shell to form a motor cavity for accommodating a driving motor, and the first shell is arranged between the second shell and the end cover; the end cover is provided with a first oil duct, an oil collecting assembly communicated with the first oil duct is arranged in the gear cavity, and an oil port of the oil collecting assembly is communicated with a bearing seat of the second shell, wherein the transmission shaft is arranged on the bearing seat of the second shell. The cooling and lubricating device, the hybrid power type driving system and the vehicle can lubricate the transmission shaft system, and the cost is reduced.

Description

Cooling and lubricating device, hybrid power type driving system and vehicle
Technical Field
The invention relates to the technical field of hybrid power lubrication and cooling, in particular to a cooling and lubricating device, a hybrid power type driving system and a vehicle.
Background
The hybrid electric drive system is provided with a transmission shaft system, and the transmission shaft system needs to be lubricated and cooled in order to ensure the normal operation of the hybrid electric drive system.
However, in the prior art, due to the arrangement of the driving motor, a large height difference exists between a driving motor shaft and a differential shaft of a transmission shaft system, and the lubricating risk is high.
Disclosure of Invention
The invention provides a cooling and lubricating device, a hybrid power type driving system and a vehicle, which solve or partially solve the technical problem that the lubricating risk is high due to the fact that a large height difference exists between a driving motor shaft and a differential mechanism shaft in the prior art.
In order to solve the above technical problem, the present invention provides a cooling and lubricating device comprising: a first housing; the second shell is connected with the first shell to form a gear cavity for accommodating a transmission shaft system; the end cover is connected with the first shell to form a motor cavity for accommodating a driving motor, and the first shell is arranged between the second shell and the end cover; the end cover is provided with a first oil duct, an oil collecting assembly communicated with the first oil duct is arranged in the gear cavity, and an oil port of the oil collecting assembly is communicated with a bearing seat of the second shell, wherein the transmission shaft is arranged on the bearing seat of the second shell.
Further, be equipped with on the second casing and be used for installing at least one bearing frame of transmission shafting, the oil collecting component includes: and the oil collecting cavity is communicated with the first oil passage and the at least one bearing block.
Further, the oil collecting cavity is provided with more than two, and more than two the oil collecting cavity communicates in proper order, at least one the oil collecting cavity with the bearing frame intercommunication.
Further, the at least one bearing block comprises a drive motor shaft bearing block, an EV middle shaft bearing block and a shift drum shaft bearing block; the oil collecting cavities are three and respectively comprise a first oil collecting cavity, a second oil collecting cavity and a third oil collecting cavity, the first oil collecting cavity, the second oil collecting cavity and the third oil collecting cavity are sequentially communicated, the first oil collecting cavity is communicated with the first oil duct, the driving motor shaft bearing block and the EV middle shaft bearing block, and the third oil collecting cavity is communicated with the gear shifting drum shaft bearing block.
Further, the second oil collecting cavity is communicated with the top of the first oil collecting cavity, and the bottom of the second oil collecting cavity is communicated with the bottom of the third oil collecting cavity.
Further, the transmission shafting includes the input shaft and with the EV jackshaft of input shaft meshing, the second oil collecting chamber with the third oil collecting chamber all seted up the oil discharge mouth to carry lubricating oil to the input shaft with the EV jackshaft meshing department.
Furthermore, a splashing oil port is formed in the first oil collecting cavity and is opposite to the first shell.
Further, the oil collecting assembly further comprises: the first bearing seat oil duct is arranged on the second shell and is respectively communicated with an oil port of the first oil collecting cavity and a bearing seat of the driving motor shaft; the second bearing block oil passage is arranged on the second shell and is respectively communicated with the first bearing block oil passage and the EV middle bearing block; and the plurality of oil ribs are arranged on the second shell to form a third bearing seat oil duct, and the third bearing seat oil duct is respectively communicated with the oil port of the third oil collecting cavity and the gear shifting drum shaft bearing seat.
Further, the cooling and lubricating device further comprises: the oil baffle plate is arranged on the end face, facing the end cover, of the first shell to form an oil cavity; the oil injection pipe is communicated with the first oil duct and the oil cavity; and the first shell is provided with an oil inlet communicated with the oil cavity and the oil collecting assembly.
Further, driving motor is including offering the rotor shaft of through-hole, cooling and lubrication device still include with the second oil duct of through-hole intercommunication.
Further, the driving motor further comprises a rotor shaft bearing seat supporting the rotor shaft, the second oil duct is embedded in the through hole, a gap is reserved between the second oil duct and the through hole, and a fourth bearing seat oil duct communicated with the rotor shaft bearing seat is formed.
Based on the same inventive concept, the application also provides a hybrid power type driving system which comprises the cooling and lubricating device.
Based on the same inventive concept, the application also provides a vehicle comprising the hybrid power type driving system.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
in the prior art, the driving motor shaft is lubricated mainly in a splash lubrication mode, and splash oil flow for splash lubrication is generated by stirring of the differential shaft. In order to lubricate the shaft of the driving motor, the conventional scheme is to perform forced lubrication by using a hydraulic system, and the hydraulic system is complex and high in cost.
Because the second shell is connected with the first shell to form a gear cavity for accommodating the transmission shaft system, the end cover is connected with the first shell to form a motor cavity for accommodating the driving motor, the first shell is arranged between the second shell and the end cover, the end cover is provided with a first oil duct, and an oil collecting assembly communicated with the first oil duct is arranged in the gear cavity, so that the oil collecting assembly is integrated in the gear cavity, high integration is realized, the number of parts is reduced, and effective distribution of lubricating oil is realized.
Drawings
FIG. 1 is a schematic structural diagram of a cooling and lubricating apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic layout of an oil collection assembly of the cooling and lubricating apparatus of FIG. 1;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic structural view of an end cover of the cooling and lubricating device in FIG. 1;
fig. 5 is a schematic layout of the first oil passage of the cooling lubrication device in fig. 1;
FIG. 6 is a schematic view of a second pass arrangement of the cooling and lubricating apparatus of FIG. 1;
FIG. 7 is a schematic view of an oil baffle plate of the cooling and lubricating apparatus shown in FIG. 1;
FIG. 8 is a schematic view of the oil collecting assembly of the cooling and lubricating apparatus of FIG. 1;
fig. 9 is a schematic diagram of oil supply of an oil collecting assembly of the cooling and lubricating device in fig. 1.
Detailed Description
Referring to fig. 1 to 5, a cooling and lubricating apparatus according to an embodiment of the present invention includes: a first shell 1, a second shell 2 and an end cover 3.
The second housing 2 is connected to the first housing 1 to form a gear chamber for accommodating the transmission shafting 4.
The end cover 3 is connected with the first shell 1 to form a motor cavity for accommodating the driving motor, and the first shell 1 is arranged between the second shell 2 and the end cover 3.
The end cover 3 is provided with a first oil duct 5, the gear cavity is internally provided with an oil collecting assembly 6 communicated with the first oil duct 5, and an oil port of the oil collecting assembly 6 is communicated with a bearing seat of the second shell 2, which is arranged on the transmission shaft system 4.
In the prior art, the driving motor shaft is lubricated mainly in a splash lubrication mode, and splash oil flow for splash lubrication is generated by stirring of the differential shaft. In order to lubricate the shaft of the driving motor, the conventional scheme is to perform forced lubrication by using a hydraulic system, and the hydraulic system is complex and high in cost.
Because the second shell 2 is connected with the first shell 1 to form a gear cavity for accommodating the transmission shaft 4, the end cover 3 is connected with the first shell 1 to form a motor cavity for accommodating the driving motor, the first shell 1 is arranged between the second shell 2 and the end cover 3, the end cover 3 is provided with the first oil duct 5, and the gear cavity is internally provided with the oil collecting component 6 communicated with the first oil duct 5, the oil collecting component 6 is integrated in the gear cavity, high integration is realized, the number of parts is reduced, and effective distribution of lubricating oil is realized, because an oil port of the oil collecting component 6 is communicated with a bearing seat arranged on the second shell 2 by the transmission shaft 4, when the transmission shaft 4 needs to be lubricated, the lubricating oil is conveyed into the oil collecting component 6 through the first oil duct 5, and is directly supplied to the bearing seat arranged on the second shell 2 by the oil collecting component 6, lubrication on the transmission shaft 4 can be realized, normal operation of the hybrid power type electric drive system is ensured, transmission efficiency is improved, an additional hydraulic system is not needed, and cost is reduced.
In some embodiments, due to the arrangement and integration of the driving motor and the transmission shaft system 4, a vacant space is formed above the gear cavity, and the oil collecting assembly 6 is arranged in the vacant space, so that the arrangement is compact, and the space is saved.
In some embodiments, the second casing 2 is provided with at least one bearing seat for mounting a transmission shaft system, and the oil collecting assembly comprises: the oil collecting cavity is communicated with the first oil duct and the at least one bearing block.
In this embodiment, when needs lubricate transmission shafting 4, carry lubricating oil to the oil collecting cavity through first oil duct 5, store fluid through the oil collecting cavity, the rethread oil collecting cavity is direct to supply lubricating oil for the bearing frame, can realize the lubrication to transmission shafting 4, guarantees hybrid electric drive system's normal operating, has improved transmission efficiency, does not need extra hydraulic system, reduce cost.
In this embodiment, the oil collecting cavity is provided with more than two, and more than two oil collecting cavities communicate in proper order, and at least one oil collecting cavity communicates with the bearing frame. Wherein, when needs lubricate transmission shafting 4, carry lubricating oil to the oil collecting cavity through first oil duct 5, store fluid through the oil collecting cavity, the rethread oil collecting cavity is direct with lubricating oil supply for the bearing frame, can realize the lubrication to transmission shafting 4, guarantees hybrid electric drive system's normal operating, has improved transmission efficiency, does not need extra hydraulic system, reduce cost.
Referring to fig. 8-9, in the present embodiment, at least one bearing block includes a drive motor shaft bearing block 4-4, an EV countershaft bearing block 4-5, and a shift drum shaft bearing block 4-6. The drive shaft 4 includes: a drive motor shaft 4-1, an EV intermediate shaft 4-2 and a shift drum shaft 4-3. The driving motor shaft 4-1 is arranged on the second shell 2 through a driving motor shaft bearing seat 4-4, the EV (electric vehicle) intermediate shaft 4-2 is arranged on the second shell 2 through an EV intermediate shaft bearing seat 4-5, and the shift drum shaft 4-3 is arranged on the second shell 2 through a shift drum shaft bearing seat 4-6.
In the embodiment, three oil collecting cavities are arranged and are respectively a first oil collecting cavity 6-1, a second oil collecting cavity 6-2 and a third oil collecting cavity 6-3, the first oil collecting cavity 6-1, the second oil collecting cavity 6-2 and the third oil collecting cavity 6-3 are sequentially communicated, the first oil collecting cavity 6-1 is communicated with a first oil duct 5, a driving motor shaft bearing seat 4-4 and an EV middle shaft bearing seat 4-5, and the third oil collecting cavity 6-3 is communicated with a shift drum shaft bearing seat 4-6.
Referring to fig. 2, in the embodiment, a large height difference t1 exists between a differential shaft 4-7 of a transmission shaft system 4 and a driving motor shaft 4-1, which causes splash lubrication difficulty, in the present application, a first oil duct 5 supplies lubricating oil to a first oil collecting chamber 6-1, the lubricating oil is collected through the first oil collecting chamber 6-1, the first oil collecting chamber 6-1 directly supplies the lubricating oil to a driving motor shaft bearing seat 4-4 and an EV intermediate shaft bearing seat 4-5, so as to lubricate and cool the driving motor shaft 4-1 and the EV intermediate shaft 4-2, the lubricating oil enters a second oil collecting chamber 6-2 through the first oil collecting chamber 6-1, and then enters a third oil collecting chamber 6-3 through the second oil collecting chamber 6-2, and the third oil collecting chamber 6-3 directly supplies the lubricating oil to a shift drum shaft bearing seat 4-6, so as to lubricate and cool the shift drum shaft 4-3, thereby ensuring normal operation of the hybrid power type electric drive system, improving transmission efficiency, eliminating the need of an additional hydraulic system, and reducing cost.
In the embodiment, the second oil collecting cavity 6-2 is communicated with the top of the first oil collecting cavity 6-1, the second oil collecting cavity 6-2 is communicated with the bottom of the third oil collecting cavity 6-3, when the first oil collecting cavity 6-1 is filled with lubricating oil, the lubricating oil enters the second oil collecting cavity 6-2 through the top of the first oil collecting cavity 6-1 and then enters the third oil collecting cavity 6-3 through the bottom of the second oil collecting cavity 6-2, and therefore the oil collecting amount and the oil flow smoothness can be guaranteed.
In this embodiment, the oil collection assembly 6 further includes a first channel 6-4 in communication with the first oil collection chamber 6-1 and the second oil collection chamber 6-2 to ensure smooth oil flow within the oil collection assembly 6. Wherein the length of the first channel 6-4 is 15mm and the width of the first channel 6-4 is 25mm.
In this embodiment, the oil collecting assembly 6 further includes a second channel 6-5 communicating with the second oil collecting chamber 6-2 and the third oil collecting chamber 6-3 to ensure smooth oil flow in the oil collecting assembly 6. Wherein the length of the second channel 6-5 is 15mm and the width of the second channel 6-5 is 7mm.
Referring to fig. 3, in the embodiment, a distance t2 between a gear on a differential shaft 4-7 and a bearing seat 4-4 of a driving motor shaft and a bearing seat 4-5 of an EV intermediate shaft in the axial direction is large, when a gear cavity is inclined, the lubricating risk of the bearing seat 4-4 of the driving motor shaft and the bearing seat 4-5 of the EV intermediate shaft is high, an oil port of a first oil collecting cavity 6-1 is arranged at the bottom of the first oil collecting cavity 6-1 and is opposite to a second housing 2, and when the gear cavity is inclined, the oil port of the first oil collecting cavity 6-1 can still supply lubricating oil to the bearing seat 4-4 of the driving motor shaft and the bearing seat 4-5 of the EV intermediate shaft so as to lubricate and cool the driving motor shaft 4-1 and the bearing seat 4-2 of the EV intermediate shaft, thereby ensuring the normal operation of a hybrid electric drive system, improving the transmission efficiency, eliminating the need of an additional hydraulic system, and reducing the cost.
In the embodiment, a plurality of ribs are arranged on the end surface of the first shell 1 facing the second shell 2 and attached to the end surface of the second shell 2 facing the first shell 1 to form the first oil collecting cavity 6-1, the second oil collecting cavity 6-2 and the third oil collecting cavity 6-3, so that the oil collecting amount is ensured.
In some embodiments, the drive line 4 includes an input shaft 4-8 and an input shaft 4-8 that meshes with the EV countershaft 4-2. In the present embodiment, the input shaft 4-8 and the EV intermediate shaft 4-2 are both provided with gears, and both gears mesh with each other. The second oil collecting cavity 6-2 and the third oil collecting cavity 6-3 are respectively provided with an oil discharging opening 6-6 so as to convey lubricating oil to the meshing part of the input shaft 4-8 and the EV middle shaft 4-2 and lubricate the meshing part of the input shaft 4-8 and the EV middle shaft 4-2, so that the normal operation of a hybrid power type electric drive system is ensured, the transmission efficiency is improved, an additional hydraulic system is not needed, and the cost is reduced. Wherein, the length of the oil discharge port 6-6 is 8mm, and the width is 2mm.
In some embodiments, the drive line 4 further comprises an internal combustion engine countershaft 4-9 to ensure power transmission of the hybrid electric drive system.
In some embodiments, the drive line 4 further comprises a shift fork 4-10 to ensure power transmission of the hybrid electric drive system.
In some embodiments, the first oil collecting cavity 6-1 is opened with a splashing oil port 6-7, and the splashing oil port 6-7 is opposite to the first shell 1. The differential shaft 4-7 rotates to stir the lubricating oil in the gear cavity, so that the lubricating oil enters the first oil collecting cavity 6-1 through the splashing oil port 6-7 and can collect oil flow.
In the embodiment, when the transmission shaft system 4 runs at a high speed, the differential shaft 4-7 rotates rapidly, so that lubricating oil in the gear cavity is stirred, a large amount of lubricating oil enters the first oil collecting cavity 6-1 through the splashing oil port 6-7, oil is collected through the first oil collecting cavity 6-1, the oil stirring loss during the rapid rotation of the differential shaft 4-7 is reduced, and meanwhile, the resistance during the rotation of the transmission shaft system 4 is reduced. When the transmission shaft system 4 runs at a low speed, the lubricating oil in the second oil collecting cavity 6-2 and the third oil collecting cavity 6-3 is discharged through the oil discharging ports 6-6, so that the lubricating oil amount in the gear cavity is ensured.
Specifically, the oil collecting assembly 6 further includes: the first bearing seat oil passage 6-8, the second bearing seat oil passage 6-9 and a plurality of oil ribs 6-10.
The first bearing seat oil duct 6-8 is arranged on the second shell 2, and the first bearing seat oil duct 6-8 is respectively communicated with an oil port of the first oil collecting cavity 6-1 and a bearing seat 4-4 of the driving motor shaft. The first bearing seat oil passage 6-8 supplies lubricating oil in the first oil collecting cavity 6-1 to the bearing seat 4-4 of the driving motor shaft to lubricate and cool the driving motor shaft 4-1, so that the normal operation of the hybrid power type electric driving system is ensured, the transmission efficiency is improved, an additional hydraulic system is not needed, and the cost is reduced.
And the second bearing seat oil passages 6-9 are arranged on the second shell 2, and the second bearing seat oil passages 6-9 are respectively communicated with the first bearing seat oil passages and the EV middle shaft bearing seats 4-5. The second bearing seat oil passage 6-9 supplies lubricating oil in the first bearing seat oil passage 6-8 to the EV intermediate shaft bearing seat 4-5 to lubricate and cool the EV intermediate shaft 4-2, so that the normal operation of a hybrid power type electric drive system is ensured, the transmission efficiency is improved, an additional hydraulic system is not needed, and the cost is reduced.
The plurality of oil ribs 6-10 are arranged on the second shell 2 to form a third bearing seat oil duct 6-11, and the third bearing seat oil duct 6-11 is respectively communicated with an oil port of the third oil collecting cavity 6-3 and a gear shifting drum shaft bearing seat 4-6. The third bearing seat oil passage 6-11 supplies lubricating oil in the third oil collecting cavity 6-3 to the gear shifting drum shaft bearing seat 4-6 to lubricate and cool the gear shifting drum shaft 4-3, so that the normal operation of a hybrid power type electric drive system is ensured, the transmission efficiency is improved, an additional hydraulic system is not needed, and the cost is reduced.
Referring to fig. 7, in some embodiments, the cooling and lubricating device further comprises: oil baffle 7 and oil spout pipe 8.
An oil baffle 7 is provided on the end face of the first housing 1 facing the end cap 3 to form an oil chamber.
The oil spout pipe 8 communicates with the first oil passage 5 and the oil chamber. In the present embodiment, the first oil passage 5 has two oil inlets 5-1 to secure the amount of oil of the supplied lubricating oil.
Wherein, the first shell 1 is provided with an oil inlet 1-1 communicated with the oil cavity and the oil collecting component 6.
In this embodiment, the first oil passage 5 supplies the lubricating oil to the oil spraying pipe 8, the oil spraying pipe 8 conveys the lubricating oil into the oil cavity, and the lubricating oil is buffered by the oil cavity, so that the lubricating oil can smoothly enter the oil collecting assembly 6 from the oil inlet hole 1-1 to supply the oil to the oil collecting assembly 6.
Referring to fig. 6, in some embodiments, the driving motor includes a rotor shaft 9 having a through hole 9-1 formed therein. In the present embodiment, the through hole 9-1 and the rotor shaft 9 are coaxially arranged to ensure smooth flow of the lubricating oil. The cooling and lubricating device further includes a second oil passage 10 communicating with the through hole 9-1.
In the present embodiment, the second oil passage 10 delivers the lubricating oil into the through hole 9-1, and the through hole 9-1 delivers the lubricating oil into the drive motor, cooling and lubricating the drive motor.
In this embodiment, the driving motor further includes a rotor shaft bearing seat 11 supporting the rotor shaft 9, the second oil passage 10 is embedded in the through hole 9-1, and a gap is formed between the second oil passage 10 and the through hole to form a fourth bearing seat oil passage 12 communicating with the rotor shaft bearing seat 11. In the present embodiment, an oil guide ring 13 is provided at an end of the second oil passage 10, the oil guide ring 13 is fitted in the through hole 9-1, and a gap is provided between the oil guide ring 13 and the through hole to form a fourth bearing seat oil passage 12 communicating with the rotor shaft bearing seat 11.
In the present embodiment, when the second oil passage 10 delivers the lubricating oil into the through hole 9-1 through the oil guide ring 13, a part of the lubricating oil flows back, enters the rotor shaft bearing housing 11 through the fourth bearing housing oil passage 12, and is lubricated and cooled.
Based on the same inventive concept, the present application further provides a hybrid driving system, in which the cooling and lubricating device is adopted, and the specific structure of the cooling and lubricating device refers to the above embodiments.
Based on the same inventive concept, the present application further provides a vehicle, where the vehicle employs the hybrid drive system, and the specific structure of the hybrid drive system refers to the foregoing embodiments, and since all technical solutions of all the foregoing embodiments are employed, at least all beneficial effects brought by the foregoing embodiments are at least achieved, and details are not repeated here.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (13)

1. A cooling and lubricating apparatus, characterized by comprising:
a first housing;
the second shell is connected with the first shell to form a gear cavity for accommodating a transmission shaft system;
the end cover is connected with the first shell to form a motor cavity for accommodating a driving motor, and the first shell is arranged between the second shell and the end cover;
the end cover is provided with a first oil duct, an oil collecting assembly communicated with the first oil duct is arranged in the gear cavity, and an oil port of the oil collecting assembly is communicated with a bearing seat of the second shell, wherein the transmission shaft is arranged on the bearing seat of the second shell.
2. The cooling and lubricating device according to claim 1, wherein the second housing is provided with at least one bearing seat for mounting the transmission shafting, and the oil collecting assembly comprises: and the oil collecting cavity is communicated with the first oil passage and the at least one bearing block.
3. The cooling and lubricating device according to claim 2, wherein the number of the oil collecting chambers is two or more, the two or more oil collecting chambers are sequentially communicated, and at least one oil collecting chamber is communicated with the bearing seat.
4. The cooling and lubrication device according to claim 3, wherein said at least one bearing block includes a drive motor shaft bearing block, an EV intermediate shaft bearing block and a shift drum shaft bearing block; the oil collecting cavities are three and respectively comprise a first oil collecting cavity, a second oil collecting cavity and a third oil collecting cavity, the first oil collecting cavity, the second oil collecting cavity and the third oil collecting cavity are sequentially communicated, the first oil collecting cavity is communicated with the first oil duct, the driving motor shaft bearing block and the EV middle shaft bearing block, and the third oil collecting cavity is communicated with the gear shifting drum shaft bearing block.
5. The cooling and lubrication device according to claim 4, wherein the second oil collection chamber is in communication with a top portion of the first oil collection chamber, and the second oil collection chamber is in communication with a bottom portion of the third oil collection chamber.
6. The cooling and lubricating device according to claim 4, wherein the transmission shafting comprises an input shaft and an EV middle shaft meshed with the input shaft, and oil discharge ports are formed in the second oil collecting cavity and the third oil collecting cavity respectively so as to deliver lubricating oil to the meshing position of the input shaft and the EV middle shaft.
7. The cooling and lubricating device according to claim 4, wherein the first oil collecting chamber is provided with a splashing oil port, and the splashing oil port is opposite to the first housing.
8. The cooling and lubricating apparatus according to claim 4, wherein the oil collecting assembly further comprises:
the first bearing block oil passage is arranged on the second shell and is respectively communicated with the oil port of the first oil collecting cavity and the bearing block of the driving motor shaft;
the second bearing block oil passage is arranged on the second shell and is respectively communicated with the first bearing block oil passage and the EV middle bearing block;
and the plurality of oil ribs are arranged on the second shell to form a third bearing seat oil duct, and the third bearing seat oil duct is respectively communicated with the oil port of the third oil collecting cavity and the gear shifting drum shaft bearing seat.
9. The cooling and lubrication device according to claim 1, further comprising:
the oil baffle plate is arranged on the end face, facing the end cover, of the first shell to form an oil cavity;
the oil injection pipe is communicated with the first oil duct and the oil cavity;
and the first shell is provided with an oil inlet communicated with the oil cavity and the oil collecting assembly.
10. The cooling and lubrication device according to claim 1, wherein the driving motor includes a rotor shaft having a through hole, and the cooling and lubrication device further includes a second oil passage communicating with the through hole.
11. The cooling and lubrication device according to claim 10, wherein the drive motor further comprises a rotor shaft bearing seat supporting the rotor shaft, the second oil passage is embedded in the through hole, and a gap is formed between the second oil passage and the through hole to form a fourth bearing seat oil passage communicating with the rotor shaft bearing seat.
12. A hybrid drive system comprising a cooling and lubricating apparatus according to any one of claims 1 to 11.
13. A vehicle characterized by comprising the hybrid drive system of claim 12.
CN202210854968.5A 2022-07-19 2022-07-19 Cooling and lubricating device, hybrid power type driving system and vehicle Pending CN115264038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210854968.5A CN115264038A (en) 2022-07-19 2022-07-19 Cooling and lubricating device, hybrid power type driving system and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210854968.5A CN115264038A (en) 2022-07-19 2022-07-19 Cooling and lubricating device, hybrid power type driving system and vehicle

Publications (1)

Publication Number Publication Date
CN115264038A true CN115264038A (en) 2022-11-01

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CN202210854968.5A Pending CN115264038A (en) 2022-07-19 2022-07-19 Cooling and lubricating device, hybrid power type driving system and vehicle

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116006668A (en) * 2023-01-28 2023-04-25 江苏新能源汽车研究院有限公司 Active lubricating device of electric drive system and working method thereof
CN116647081A (en) * 2023-04-25 2023-08-25 无锡星驱动力科技有限公司 Cooling and lubricating system of driving assembly and vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116006668A (en) * 2023-01-28 2023-04-25 江苏新能源汽车研究院有限公司 Active lubricating device of electric drive system and working method thereof
CN116006668B (en) * 2023-01-28 2023-11-10 江苏新能源汽车研究院有限公司 Active lubricating device of electric drive system and working method thereof
CN116647081A (en) * 2023-04-25 2023-08-25 无锡星驱动力科技有限公司 Cooling and lubricating system of driving assembly and vehicle

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