CN112780747A - Front axle differential mechanism shell and front axle differential mechanism of four-wheel drive vehicle - Google Patents
Front axle differential mechanism shell and front axle differential mechanism of four-wheel drive vehicle Download PDFInfo
- Publication number
- CN112780747A CN112780747A CN202110016537.7A CN202110016537A CN112780747A CN 112780747 A CN112780747 A CN 112780747A CN 202110016537 A CN202110016537 A CN 202110016537A CN 112780747 A CN112780747 A CN 112780747A
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- half shaft
- hole
- front axle
- 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
Links
Images
Classifications
-
- 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
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
-
- 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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
-
- 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
- F16H57/03—Gearboxes; Mounting gearing therein characterised by means for reinforcing gearboxes, e.g. ribs
-
- 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
- F16H57/042—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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention provides a four-wheel drive front axle differential shell and a front axle differential, comprising: the hollow shaft gear comprises a hollow shell, wherein a cavity is arranged in the hollow shell, a first half shaft mounting hole and a second half shaft mounting hole which are used for mounting a half shaft gear are formed in the left side and the right side of the hollow shell, a first planet shaft hole and a second planet shaft hole which are used for mounting a planet shaft are formed in the upper side and the lower side of the hollow shell, and a spiral oil groove is further formed in the inner wall of the first half shaft mounting hole; according to the front axle differential shell and the front axle differential of the four-wheel drive vehicle, the finish machining of an inner hole and a spiral oil groove are omitted at the connecting end of the front axle differential shell and a common transmission half axle, and a rod part of the half axle is in large clearance fit with the inner hole; at the link with the constant speed drive semi-axis, remain spiral oil groove, the hole finish machining to for the constant speed drive semi-axis provides the support, simultaneously, enlarged the fit clearance of semi-axis gear and first semi-axis mounting hole end semi-axis gear installation hole.
Description
Technical Field
The invention belongs to the technical field of transmission devices, and particularly relates to a front axle differential shell and a front axle differential of a four-wheel drive vehicle.
Background
An inner hole at one end of a differential shell of a front axle of the four-wheel drive vehicle needs to be connected with a constant-speed driving half shaft, and the other end of the differential shell needs to be connected with a common transmission half shaft. Two holes are designed into smooth holes, and large clearance fit is adopted, the lubricating condition of the differential shell is improved, but one end connected with the constant-speed driving half shaft is large in fit clearance, the constant-speed driving half shaft cannot be effectively supported by the differential shell, so that the half shaft is rocked, the riding comfort of the whole vehicle is influenced, and the service life of the whole drive axle is shortened. In addition, two bores are designed into the oil guide grooves which are in small clearance fit with the half shafts, and the oil guide grooves are processed in the bores, so that one end of the differential case is connected with the constant-speed driving half shafts, the half shaft gears on the differential case are provided with the bores, the constant-speed half shaft external splines and the bores connected with the constant-speed driving half shafts, the constant-speed driving half shafts are restrained together, and over-restraint can cause resonance when a vehicle runs, and the riding comfort of the vehicle is influenced. In addition, the end of the differential shell connected with the common transmission half shaft is supported by the half shaft bearing and the half shaft splines and the internal splines of the half shaft gear, so that the matching of the precision shaft hole at the position is excessive in function, and waste is caused by fine machining of an inner hole in production. Therefore, the design optimization and the promotion of the four-wheel drive front axle differential shell are problems which are urgently needed to be solved by technicians.
Chinese utility model patent with publication number CN210661268U discloses a differential casing and differential, include: the side wall of the shell is provided with a half shaft mounting hole for mounting a half shaft; the annular welding piece is used for welding the main reducing gear, is sleeved on the shell and is coaxially arranged with the half shaft mounting hole, the inner ring part of the annular welding piece is prefabricated in the side wall of the shell, and the outer ring part of the annular welding piece protrudes out of the outer surface of the shell; it can be seen that the prior art differential case and differential do not contemplate improving the lubrication of the differential case.
Disclosure of Invention
The invention aims to provide a front axle differential shell and a front axle differential of a four-wheel drive vehicle, and aims to solve the problem that the differential shell and the differential are lubricated at a connecting end of a transmission half axle and an end of a constant speed driving half axle in the front axle of the four-wheel drive vehicle.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the invention provides a four-wheel drive front axle differential shell and a front axle differential, comprising:
the hollow bevel gear comprises a hollow shell, wherein a cavity is arranged in the hollow shell, a first half shaft mounting hole and a second half shaft mounting hole which are used for mounting a half shaft gear are formed in the left side and the right side of the hollow shell, a first planet shaft hole and a second planet shaft hole which are used for mounting a planet shaft are formed in the upper side and the lower side of the hollow shell, a flange plate used for mounting a driven bevel gear is further arranged on the hollow shell, and a first pin hole used for fixing the planet shaft is further formed in the hollow shell; and a spiral oil groove is also formed in the inner wall of the first semi-shaft mounting hole.
As a further improvement of the invention, the flange plate is also provided with a flange hole for mounting the driven bevel gear.
As a further improvement of the invention, a reinforcing rib is arranged between the second half shaft mounting hole and the flange.
The invention also provides a four-wheel drive front axle differential, which comprises the four-wheel drive front axle differential shell and also comprises:
the planetary gear assembly comprises a first half shaft gear, a second half shaft gear, a planetary shaft, a first planetary gear and a second planetary gear, wherein the first half shaft gear is arranged in a first half shaft mounting hole and a cavity, the second half shaft gear is arranged in a second half shaft mounting hole and the cavity, the planetary shaft is arranged in the cavity and penetrates through a first planetary shaft hole and a second planetary shaft hole, the first planetary gear and the second planetary gear are sleeved on the planetary shaft in a penetrating manner, and the first planetary gear and the second planetary gear are respectively meshed with the first half shaft gear and the second half shaft gear;
a first gasket is arranged between the first half shaft gear and the inner wall of the hollow shell, and a second gasket is arranged between the second half shaft gear and the inner wall of the hollow shell; a third gasket is arranged between the first planetary gear and the inner wall of the hollow shell, and a fourth gasket is arranged between the second planetary gear and the inner wall of the hollow shell;
the planet shaft is also provided with a second pin hole, and the planet shaft is fixed with the hollow shell by arranging pin shafts in the first pin hole and the second pin hole;
the first half shaft gear is provided with a first internal spline for being connected with a transmission half shaft, and the second half shaft gear is provided with a second internal spline for being connected with the transmission half shaft.
The invention has the advantages that:
1. according to the front axle differential shell and the front axle differential of the four-wheel drive vehicle, the fine machining of an inner hole and a spiral oil groove are omitted at the connecting end of the front axle differential shell and a common transmission half shaft, and large clearance fit is adopted; at the end of connection with the constant velocity drive axle shaft, a helical oil groove is retained, and the bore is finish machined to provide support for the constant velocity drive axle shaft. Meanwhile, an inner hole is formed in the differential case half shaft gear at the end connected with the constant-speed driving half shaft, so that the tolerance is increased, the precision fit is cancelled, namely, the fit clearance with the half shaft gear is increased, and the half shaft over-constraint is avoided.
2. The four-wheel drive front axle differential shell and the front axle differential provided by the invention solve the resonance problem caused by the matching of the differential shell and a constant speed drive half shaft, solve the function surplus problem caused by the matching of the differential shell and a common drive half shaft, ensure the lubricating condition of the differential shell and improve the overall performance of the four-wheel drive front axle.
Drawings
FIG. 1 is a schematic structural diagram of a front differential case of a four-wheel drive vehicle according to the present invention;
FIG. 2 is a schematic structural diagram of a front axle differential of a four-wheel drive vehicle according to the present invention;
FIG. 3 is a schematic view of the differential of the front axle of the four-wheel drive vehicle according to the present invention.
In the figure: 100-four-wheel drive front axle differential shell, 101-hollow shell, 102-first axle mounting hole, 103-second axle mounting hole, 104-first planet axle hole, 105-second planet axle hole, 106-cavity, 107-flange plate, 108-flange hole, 109-reinforcing rib, 110-helical oil groove, 111-first pin hole, 200-four-wheel drive front axle differential, 201-first axle gear, 202-second axle gear, 203-first planet gear, 204-second planet gear, 205-planet axle, 206-second pin hole, 207-first gasket, 208-second gasket, 209-third gasket, 210-fourth gasket, 211-first internal spline, 212-second internal spline, 301-axle bearing, 302-drive half shaft, 303-driven bevel gear, 304-driving bevel gear, 305-differential bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In an embodiment of the present invention, a four-wheel drive front axle differential case is provided, as shown in fig. 1, a four-wheel drive front axle differential case 100 includes: the transmission device comprises a hollow shell 101, wherein a cavity 106 is arranged in the hollow shell 101, a first half shaft mounting hole 102 and a second half shaft mounting hole 103 are formed in the left side and the right side of the hollow shell 101 and used for mounting a half shaft gear, the first half shaft mounting hole 102 is also used for being in transmission connection with a constant-speed driving half shaft, and the second half shaft mounting hole 103 is also used for being in transmission connection with a transmission half shaft; a first planet shaft hole 104 and a second planet shaft hole 105 for mounting a planet shaft are formed in the upper side and the lower side of the hollow shell 101, a flange plate 107 for mounting a driven bevel gear is further arranged on the hollow shell 101, and a first pin hole 111 for fixing the planet shaft is further formed in the hollow shell 101; a spiral oil groove 110 is also arranged on the inner wall of the first semi-axis mounting hole 102; through the structural arrangement, the second half shaft mounting hole 103 serves as a connecting end with the transmission half shaft, the finish machining and the spiral oil groove of the inner hole are omitted, and large clearance fit is adopted. The first axle mounting hole 102 serves as a connection end with the constant speed drive axle shaft, a spiral oil groove 110 is reserved, and an inner hole is subjected to finish machining so as to provide support for the constant speed drive axle shaft; meanwhile, the tolerance of the first half shaft mounting hole 102 is increased, precision fit is cancelled, namely the fit clearance with the half shaft gear is increased, and half shaft over-constraint is avoided.
In one embodiment, with continued reference to FIG. 1, the flange 107 also defines a flange aperture 108 for receiving a driven bevel gear.
In one embodiment, with continued reference to FIG. 1, a reinforcement rib 109 is also provided between the second axle shaft receiving hole 103 and the flange 107.
The present invention further provides a four-wheel drive front axle differential, as shown in fig. 2, the four-wheel drive front axle differential 200 includes the four-wheel drive front axle differential case 100, and further includes:
a first side gear 201 arranged in the first half shaft mounting hole 102 and the cavity, a second side gear 202 arranged in the second half shaft mounting hole 103 and the cavity, a planet shaft 205 arranged in the cavity 106 and passing through the first planet shaft hole 104 and the second planet shaft hole 105, a first planet gear 203 and a second planet gear 204 passing through the planet shaft 205, wherein the first planet gear 203 and the second planet gear 204 are respectively meshed with the first side gear 201 and the second side gear 202;
a first gasket 207 is further arranged between the first side gear 201 and the inner wall of the hollow shell 101, and a second gasket 208 is further arranged between the second side gear 202 and the inner wall of the hollow shell 101; a third gasket 209 is arranged between the first planetary gear 203 and the inner wall of the hollow shell 101, and a fourth gasket 210 is arranged between the second planetary gear 204 and the inner wall of the hollow shell 101;
the planet shaft 205 is further provided with a second pin hole 206, and the planet shaft 205 is fixed with the hollow shell 101 by arranging pin shafts in the first pin hole 111 and the second pin hole 206;
first internal splines 211 used for being connected with a transmission half shaft are arranged on the first half shaft gear 201, and second internal splines 212 used for being connected with the transmission half shaft are arranged on the second half shaft gear 202.
As shown in fig. 3, after the automobile power reaches the front axle, the driving bevel gear 304 drives the driven bevel gear 303 to rotate, the driven bevel gear 303 drives the four-wheel drive front axle differential 200 to rotate, the four-wheel drive front axle differential 200 distributes the power to the first half axle gear 201 and the second half axle gear 202, the second half axle gear 202 is connected with the external spline of the transmission half axle 302 through the second internal spline 212, the final transmission half axle 302 transmits the automobile power to the wheel end, the transmission half axle 302 is also supported by the half axle bearing 301 and assembled on the front axle, and the four-wheel drive front axle differential 200 is connected with the speed reducer of the front axle through the differential bearing 305. The second half shaft mounting hole 103 is used as the connecting end of the front axle differential 200 and the transmission half shaft 302 of the four-wheel drive vehicle, the finish machining of an inner hole and a spiral oil groove are eliminated, and large clearance fit is adopted; the first axle mounting hole 102 serves as the end for connection to the constant velocity drive axle shaft, leaving a helical oil groove 110, the inner bore being finish machined to provide support for the constant velocity drive axle shaft.
Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational. Additionally, the various elements of the drawings of the present application are merely schematic illustrations and are not drawn to scale.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.
Claims (4)
1. The utility model provides a four drive front axle differential casing which characterized in that includes: the hollow bevel gear comprises a hollow shell, wherein a cavity is arranged in the hollow shell, a first half shaft mounting hole and a second half shaft mounting hole which are used for mounting a half shaft gear are formed in the left side and the right side of the hollow shell, a first planet shaft hole and a second planet shaft hole which are used for mounting a planet shaft are formed in the upper side and the lower side of the hollow shell, a flange plate used for mounting a driven bevel gear is further arranged on the hollow shell, and a first pin hole used for fixing the planet shaft is further formed in the hollow shell; and a spiral oil groove is also formed in the inner wall of the first semi-shaft mounting hole.
2. The four-wheel drive front axle differential case of claim 1, wherein: and the flange plate is also provided with a flange hole for mounting the driven bevel gear.
3. The four-wheel drive front axle differential case of claim 1, wherein: and reinforcing ribs are arranged between the second half shaft mounting holes and the flange plate.
4. A four-wheel drive front axle differential comprising the four-wheel drive front axle differential case of claim 1, further comprising:
the planetary gear assembly comprises a first half shaft gear, a second half shaft gear, a planetary shaft, a first planetary gear and a second planetary gear, wherein the first half shaft gear is arranged in a first half shaft mounting hole and a cavity, the second half shaft gear is arranged in a second half shaft mounting hole and the cavity, the planetary shaft is arranged in the cavity and penetrates through a first planetary shaft hole and a second planetary shaft hole, the first planetary gear and the second planetary gear are sleeved on the planetary shaft in a penetrating manner, and the first planetary gear and the second planetary gear are respectively meshed with the first half shaft gear and the second half shaft gear;
a first gasket is arranged between the first half shaft gear and the inner wall of the hollow shell, and a second gasket is arranged between the second half shaft gear and the inner wall of the hollow shell; a third gasket is arranged between the first planetary gear and the inner wall of the hollow shell, and a fourth gasket is arranged between the second planetary gear and the inner wall of the hollow shell;
the planet shaft is also provided with a second pin hole, and the planet shaft is fixed with the hollow shell by arranging pin shafts in the first pin hole and the second pin hole;
the first half shaft gear is provided with a first internal spline for being connected with a transmission half shaft, and the second half shaft gear is provided with a second internal spline for being connected with the transmission half shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110016537.7A CN112780747A (en) | 2021-01-07 | 2021-01-07 | Front axle differential mechanism shell and front axle differential mechanism of four-wheel drive vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110016537.7A CN112780747A (en) | 2021-01-07 | 2021-01-07 | Front axle differential mechanism shell and front axle differential mechanism of four-wheel drive vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112780747A true CN112780747A (en) | 2021-05-11 |
Family
ID=75756648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110016537.7A Pending CN112780747A (en) | 2021-01-07 | 2021-01-07 | Front axle differential mechanism shell and front axle differential mechanism of four-wheel drive vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112780747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508580A (en) * | 2022-02-25 | 2022-05-17 | 重庆轮动新能源有限公司 | Differential mechanism inner rotating gear and machining method thereof |
-
2021
- 2021-01-07 CN CN202110016537.7A patent/CN112780747A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508580A (en) * | 2022-02-25 | 2022-05-17 | 重庆轮动新能源有限公司 | Differential mechanism inner rotating gear and machining method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210978405U (en) | Two-gear speed reducer of new energy automobile | |
| EP2902662B1 (en) | Reverse gear intermediate shaft supporting structure of transmission | |
| CN112780747A (en) | Front axle differential mechanism shell and front axle differential mechanism of four-wheel drive vehicle | |
| CN214274373U (en) | Commercial transmission of new forms of energy electricelectric motor | |
| CN219888692U (en) | Oil cooling lubricating structure of electric drive car differential mechanism | |
| CN214617734U (en) | Front axle differential mechanism shell and front axle differential mechanism of four-wheel drive vehicle | |
| CN209870113U (en) | Two-in-one power assembly of new energy automobile | |
| CN210416222U (en) | Take tertiary drive gear box's electric automobile rear axle assembly | |
| CN110848346A (en) | Double-motor transverse shiftable electric drive bridge reducer assembly | |
| CN212804168U (en) | Self-sealing differential mechanism structure lubricating system | |
| CN210034327U (en) | Differential mechanism structure of automobile front-drive transmission | |
| CN201056162Y (en) | Full time transfer gear of vehicle | |
| CN109869468B (en) | Main reducer assembly and vehicle adopting same | |
| CN210859704U (en) | Reduction gear assembly and passenger car for wheel hub motor | |
| CN210371844U (en) | Rotating shaft assembly, speed reducer and vehicle | |
| CN110836254A (en) | Single-motor transverse shiftable electric drive bridge reducer assembly | |
| CN219452788U (en) | Novel chassis transmission system reduction gearbox | |
| RU207924U1 (en) | TWO-STAGE TRACTION GEARBOX | |
| CN220168486U (en) | Inter-axle differential housing assembly with herringbone axle | |
| CN220865125U (en) | Support arm and wheel drive assembly | |
| CN216242127U (en) | Novel tractor front drive axle integral type differential mechanism structure | |
| CN216975699U (en) | Differential mechanism assembly and vehicle | |
| CN217633768U (en) | Triaxial derailleur and new forms of energy car | |
| CN211335441U (en) | Coaxial electric drive axle and vehicle with same | |
| CN211809057U (en) | Single motor differential structure integrated electric drive bridge reduction gear assembly that can shift gears |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |