CN105485291A - Differential planetary gear structure and vehicle - Google Patents
Differential planetary gear structure and vehicle Download PDFInfo
- Publication number
- CN105485291A CN105485291A CN201610045712.4A CN201610045712A CN105485291A CN 105485291 A CN105485291 A CN 105485291A CN 201610045712 A CN201610045712 A CN 201610045712A CN 105485291 A CN105485291 A CN 105485291A
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- gear
- plate body
- planetary
- axle
- left half
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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
- 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
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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
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention provides a differential planetary gear structure which comprises a driven gear, a planetary gear carrier, planetary gears, a left half axle gear, a right half axle gear, a left half axle and a right half axle, wherein the left half axle gear is arranged on the left half axle, the right half axle gear is arranged on the right half axle, the left half axle gear and the right half axle gear are meshed with the planetary gears respectively, each planetary gear comprises an axle and a gear fixed at one end of the axle, the axle is rotationally arranged on the planetary gear carrier, the planetary gear carrier is arranged on the driven gear and rotates with the driven gear synchronously, and the driven gear is rotationally arranged on the left half axle or the right half axle in a sleeving manner. The invention further relates to a vehicle. The differential planetary gear structure and the vehicle are simple and compact in structure, omit a straight axle or a cross axle between the two planetary gears compared with a traditional differential, reduce the processing difficulty and the processing and manufacturing costs, are simpler to assemble and have good extendability and universality.
Description
Technical field
The present invention relates to mechanical engineering technical field, particularly relate to a kind of differential pinion gear structure and vehicle.
Background technique
Differential mechanism is the vitals of vehicle, and it makes vehicle allow vehicle both sides semiaxis to rotate with different rotating speeds when turning or the road traveling in injustice, meets two sidecar wheels and does Unequal distance traveling with the form of pure rolling as far as possible, the friction on minimizing tire and ground.At present, differential pinion gear structure mostly generally is cross axle form or a word solid shaft structure, and two planetary pinions are bound up.Assembly process process can be brought thus not to be very desirable, and assembling difficulty is comparatively large, also very inconvenient for maintenance from now on, and cross axle or a word solid shaft permissible accuracy and to manufacture processing cost higher.
Summary of the invention
Based on this, the object of the present invention is to provide a kind of differential pinion gear structure and vehicle, the structure of this differential pinion gear structure is simple, compact, and difficulty of processing is low, reduces manufacturing cost, and assembling is more simple, and assembly process process is good.For achieving the above object, technological scheme of the present invention is as follows:
A kind of differential pinion gear structure, comprise follower, planetary carrier, planetary pinion, left half axle gear, right axle shaft gear, left half axle and right axle shaft, described left half axle gear is arranged on described left half axle, described right axle shaft gear is arranged on described right axle shaft, described left half axle gear and described right axle shaft gear engage with described planetary pinion respectively, described planetary pinion comprises wheel shaft and is fixedly installed on the gear of wheel shaft one end, described wheel shaft is arranged on described planetary carrier rotationally, described planetary carrier is arranged on described follower, with described follower synchronous axial system, described follower is set on described left half axle or described right axle shaft rotationally.
Wherein in an embodiment, described differential pinion gear structure also comprises bearing support, bearing and locking nut, described bearing support is arranged on described planetary carrier, described bearing is arranged in described bearing support, described planetary axle sleeve is located in described bearing, described wheel shaft is provided with the screw thread matched with described locking nut away from one end of described planetary gear, described wheel shaft is threaded with described locking nut.
Wherein in an embodiment, described differential pinion gear structure also comprises gland, and described gland is fixedly installed on described bearing support, and described bearing is placed between described gland and described bearing support.
Wherein in an embodiment, described bearing support, described bearing, described locking nut, described gland and described planetary pinion form modular assembly, and described modular assembly is assembled on described planetary carrier.
Wherein in an embodiment, described modular assembly is two groups, and the central axis of the relatively described left half axle gear of modular assembly described in two groups and described right axle shaft gear is symmetrical arranged.
Wherein in an embodiment, described planetary carrier comprises the first plate body, second plate body and the 3rd plate body, described first plate body is connected by described 3rd plate body with described second plate body, described first plate body and antarafacial parallel with described second plate body, described first plate body and described second plate body are provided with for running through described planetary through hole, in modular assembly described in two groups wherein one group be arranged on described first plate body, another group in modular assembly described in two groups is arranged on described second plate body, described 3rd plate body is fixedly installed on described follower.
Wherein in an embodiment, described planetary gear is bevel gear; Described left half axle gear and described right axle shaft gear are also bevel gear.
Wherein in an embodiment, described planetary wheel shaft and described planetary gear are formed in one structure.
Wherein in an embodiment, described differential pinion gear structure also comprises driving wheel, and described driving wheel is meshed with described follower.
Also relate to a kind of vehicle, comprise the differential pinion gear structure described in above-mentioned arbitrary technological scheme.
The invention has the beneficial effects as follows:
Differential pinion gear structure of the present invention and vehicle, its structure is simple, compact, word axle or the cross axle between two planetary pinions is eliminated compared with conventional carrier, reduce the difficulty of processing, greatly reduce manufacturing cost, and assembling is more simple, has good expansivity and versatility, assembly process process is good, can be widely used in Vehicle Industry and need to use the occasion of Planetary Gear Transmission.It successfully solves the large problem of assembling difficulty that existing differential mechanism runs in planetary pinion assembly process, has wide market using value.
Accompanying drawing explanation
Fig. 1 is the differential pinion gear structural representation of one embodiment of the invention;
Fig. 2 is the schematic perspective view of the structure of differential pinion gear shown in Fig. 1.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, differential pinion gear structure of the present invention and vehicle are further elaborated.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
See figures.1.and.2, the differential pinion gear structure of one embodiment of the invention comprises follower 101, planetary carrier 102, planetary pinion 103, left half axle gear 104, right axle shaft gear 105, left half axle 106 and right axle shaft 107.
Wherein, left half axle gear 104 is arranged on left half axle 106, and right axle shaft gear 105 is arranged on right axle shaft 107.Left half axle gear 104 and right axle shaft gear 105 engage with planetary pinion 103 respectively.Planetary pinion 103 is preferably two groups, and the planetary pinion 103 in Fig. 1 is two groups, and each group planetary pinion 103 engages with left half axle gear 104 and right axle shaft gear 105 respectively.
The central axis of left half axle gear 104, right axle shaft gear 105 and the central axis coaxial of follower 101 are arranged.Preferably, left half axle gear 104 is one-body molded with left half axle 106, and right axle shaft gear 105 is one-body molded with right axle shaft 107.Planetary pinion 103 is bevel gear, and left half axle gear 104 and right axle shaft gear 105 are also bevel gear.
Planetary pinion 103 comprises wheel shaft and is fixedly installed on the gear of wheel shaft one end, and described wheel shaft is arranged on planetary carrier 102 rotationally.Planetary carrier 102 is arranged on follower 101, with follower 101 synchronous axial system.The wheel shaft of planetary pinion 103 and the gear of planetary pinion 103 are formed in one structure.Follower 101 is set on left half axle 106 or right axle shaft 107 rotationally.In Fig. 1, follower 101 is set on right axle shaft 107, arranges bearing between follower 101 and right axle shaft 107, thus follower 101 can be rotated around right axle shaft 107.Planetary carrier 102 is arranged on follower 101 by link.
Follower 101 drives with driving wheel 112 and is connected.The Movement transmit of driving wheel 112 to follower 101, then passes to planetary pinion 103 by gear planetary frame 102, finally by planetary pinion 103 Movement transmit to left half axle 106 and right axle shaft 107, complete transmission and the distribution of moment of torsion and motion.Follower 101 and driving wheel 112 can be all bevel gear, and follower 101 is meshed with driving wheel 112.Follower 101 and driving wheel 112 can be also all cylindrical gears, and follower 101 is meshed with driving wheel 112.Also the transmission of other form can be adopted, such as belt transmission, chain transmission or turbine and worm transmission etc. between certain follower 101 and driving wheel 112.
The differential pinion gear structure of the present embodiment, its structure is simple, and word axle or the cross axle between two planetary pinions eliminating conventional carrier, reduce the difficulty of processing, greatly reduce manufacturing cost, and assembling is more simple, assembly process process is good.This differential pinion gear structure can be arranged in the housing.As a kind of embodiment, differential pinion gear structure also comprises bearing support 108, bearing 109 and locking nut 110.Bearing support 108 is arranged on planetary carrier 102, bearing 109 is arranged in bearing support 108, the axle sleeve of planetary pinion 103 is located in bearing 109, described wheel shaft is provided with the screw thread matched with locking nut 110 away from one end of the gear of planetary pinion 103, wheel shaft is threaded with locking nut 110.Adopt being fixed relative to the axial position of wheel shaft of locking nut 110 pairs of bearings 109, be convenient to so fixing and dismounting is installed.
Preferably, bearing support 108 arranges gland 111, bearing 109 is placed between gland 111 and bearing support 108, adopts gland 111 pairs of bearings 109 to carry out spacing further, to prevent bearing 109 axial float.
Bearing support 108 is arranged the shoulder hole of through-shaft bearing 108, this shoulder hole comprises three sector holes, is followed successively by the first sector hole, the second sector hole and the 3rd sector hole.The internal diameter of the first sector hole is less than the internal diameter of the second sector hole, and the internal diameter of the second sector hole is less than the internal diameter of the 3rd sector hole.Bearing 109 is embedded in the second sector hole.Bearing support 108 is preferably flange arrangement.Certainly, bearing support 108 also adopts platy structure.
Gland 111 can comprise main board and be arranged on the lug boss on main board, gland 111 is arranged the through hole running through main board and lug boss.Main board and lug boss are preferably one-body molded.Described lug boss is placed in described 3rd sector hole, for abutting the end face of bearing 109.Described main board can adopt screw to be fixed on bearing support 108, thus realizes spacing to bearing 109.
Certainly, gland 111 also can be hollow multidiameter shaft, and this multidiameter shaft comprises the first paragraph axle and second segment axle that connect successively.The external diameter of first paragraph axle is greater than the external diameter of second segment axle, second segment axle is placed in described second sector hole, the end face of second segment axle abuts the end face of bearing 109, first paragraph axle can adopt screw to be fixed on bearing support 108, same realization is spacing to bearing 109, adopt this kind of mode, the processing of gland 111 is more simple, and ensure that the reliability spacing to bearing 109.
As another kind of embodiment, bearing support 108, bearing 109, locking nut 110, gland 111 and planetary pinion 103 form modular assembly, and this modular assembly is assembled on planetary carrier 102.In the present embodiment, gland 111 can adopt screw to be fixed on bearing support 108.Adopt this kind of mode, bearing support 108, bearing 109, locking nut 110, gland 111 and planetary pinion 103 independently can assemble as modular unit, last integral installation is again fitted on planetary carrier 102, so ensure that this structure has excellent assembly process process and technology capability, versatility is stronger, brings great convenience to assembling work and maintenance in the future.
Preferably, modular assembly is two groups, and the central axis of two groups of relative left half axle gears 104 of modular assembly and right axle shaft gear 105 is symmetrical arranged.Be connected with planetary pinion 103 between left half axle gear 104 with right axle shaft gear 105, relatively independent between two planetary pinions 103, without actual association, there is excellent assembly process process and technology capability, improve the efficiency of assembling.
As another embodiment, planetary carrier 102 comprises the first plate body, the second plate body and the 3rd plate body.First plate body is connected by the 3rd plate body with the second plate body, the first plate body and antarafacial parallel with the second plate body, and namely the first plate body and the second plate body be arranged in parallel and not in same plane.First plate body and the second plate body are provided with the through hole for running through planetary pinion 103, in two groups of modular assemblies wherein one group be arranged on the first plate body, another group in two groups of modular assemblies is arranged on the second plate body, and the 3rd plate body is fixedly installed on follower 101.First plate body, the second plate body and the 3rd plate body are preferably one-body molded.Planetary carrier is Element Design instead of general assembly parts integrally, and manufacturing precision easily ensures, technology capability is good.
The invention still further relates to a kind of vehicle, comprise the differential pinion gear structure described in above-mentioned arbitrary technological scheme.Vehicle is prior art except above-mentioned differential pinion gear structure, repeats no longer one by one herein.Vehicle, owing to have employed above-mentioned differential pinion gear structure, therefore also achieves same Advantageous Effects.
The differential pinion gear structure of above embodiment and vehicle, it is simple, compact that differential pinion gear structure has structure, manufactures the advantages such as and convenient later maintenance low with assembly cost.Eliminate word axle or the cross axle between two planetary pinions compared with conventional carrier, planetary gear construction expansivity and versatility are stronger, not only can use in differential for vehicles, also can be applied in other transmission paries.Planetary carrier is Element Design instead of general assembly parts integrally, and manufacturing precision easily ensures, and technology capability is good.Each modular assembly is made up of bearing support, gland, bearing, locking nut and planetary pinion, and each modular assembly can assemble separately as standalone module, for overall assembling work and maintenance in the future bring greatly facility.
This differential pinion gear structure can be widely used in Vehicle Industry and need to use the occasion of Planetary Gear Transmission.It successfully solves the large problem of assembling difficulty that existing differential mechanism runs in planetary pinion assembly process, has wide market using value.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a differential pinion gear structure, it is characterized in that, comprise follower (101), planetary carrier (102), planetary pinion (103), left half axle gear (104), right axle shaft gear (105), left half axle (106) and right axle shaft (107), described left half axle gear (104) is arranged on described left half axle (106), described right axle shaft gear (105) is arranged on described right axle shaft (107), described left half axle gear (104) and described right axle shaft gear (105) engage with described planetary pinion (103) respectively, described planetary pinion (103) comprises wheel shaft and is fixedly installed on the gear of wheel shaft one end, described wheel shaft is arranged on described planetary carrier (102) rotationally, described planetary carrier (102) is arranged on described follower (101), with described follower (101) synchronous axial system, described follower (101) is set on described left half axle (106) or described right axle shaft (107) rotationally.
2. differential pinion gear structure according to claim 1, it is characterized in that, also comprise bearing support (108), bearing (109) and locking nut (110), described bearing support (108) is arranged on described planetary carrier (102), described bearing (109) is arranged in described bearing support (108), the axle sleeve of described planetary pinion (103) is located in described bearing (109), described wheel shaft is provided with the screw thread matched with described locking nut (110) away from one end of the gear of described planetary pinion (103), described wheel shaft is threaded with described locking nut (110).
3. differential pinion gear structure according to claim 2, it is characterized in that, also comprise gland (111), described gland (111) is fixedly installed on described bearing support (108), and described bearing (109) is placed between described gland (111) and described bearing support (108).
4. differential pinion gear structure according to claim 3, it is characterized in that, described bearing support (108), described bearing (109), described locking nut (110), described gland (111) and described planetary pinion (103) form modular assembly, and described modular assembly is assembled on described planetary carrier (102).
5. differential pinion gear structure according to claim 4, it is characterized in that, described modular assembly is two groups, and the central axis of the relatively described left half axle gear of modular assembly described in two groups (104) and described right axle shaft gear (105) is symmetrical arranged.
6. differential pinion gear structure according to claim 5, it is characterized in that, described planetary carrier (102) comprises the first plate body, second plate body and the 3rd plate body, described first plate body is connected by described 3rd plate body with described second plate body, described first plate body and antarafacial parallel with described second plate body, described first plate body and described second plate body are provided with the through hole for running through described planetary pinion (103), in modular assembly described in two groups wherein one group be arranged on described first plate body, another group in modular assembly described in two groups is arranged on described second plate body, described 3rd plate body is fixedly installed on described follower (101).
7. the differential pinion gear structure according to any one of claim 1-6, is characterized in that, the gear of described planetary pinion (103) is bevel gear; Described left half axle gear (104) and described right axle shaft gear (105) are also bevel gear.
8. the differential pinion gear structure according to any one of claim 1-6, is characterized in that, the wheel shaft of described planetary pinion (103) and the gear of described planetary pinion (103) are formed in one structure.
9. the differential pinion gear structure according to any one of claim 1-6, is characterized in that, also comprises driving wheel (112), and described driving wheel (112) is meshed with described follower (101).
10. a vehicle, is characterized in that, comprises the differential pinion gear structure described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045712.4A CN105485291B (en) | 2016-01-22 | 2016-01-22 | Differential pinion gear structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045712.4A CN105485291B (en) | 2016-01-22 | 2016-01-22 | Differential pinion gear structure and vehicle |
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| Publication Number | Publication Date |
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| CN105485291A true CN105485291A (en) | 2016-04-13 |
| CN105485291B CN105485291B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610045712.4A Active CN105485291B (en) | 2016-01-22 | 2016-01-22 | Differential pinion gear structure and vehicle |
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| Country | Link |
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| CN (1) | CN105485291B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939939A (en) * | 2017-11-21 | 2018-04-20 | 宁波上中下自动变速器有限公司 | A kind of automobile differential |
| CN108240448A (en) * | 2016-12-27 | 2018-07-03 | 比亚迪股份有限公司 | Differential mechanism and vehicle |
| US11305581B2 (en) | 2016-12-27 | 2022-04-19 | Byd Company Limited | Drive axle locking device, power-drive system, and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201269299Y (en) * | 2008-08-20 | 2009-07-08 | 蔡智信 | Differential mechanism |
| CN201377569Y (en) * | 2009-04-13 | 2010-01-06 | 郑州机械研究所 | Phase-modulated gear case |
| US20100151983A1 (en) * | 2008-12-11 | 2010-06-17 | Ziech James F | Spider-less vehicle differential |
| CN103438179A (en) * | 2013-08-09 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Automobile differential mechanism |
| CN205350247U (en) * | 2016-01-22 | 2016-06-29 | 中国科学院宁波材料技术与工程研究所 | Differential mechanism planetary gear structure and vehicle |
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2016
- 2016-01-22 CN CN201610045712.4A patent/CN105485291B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201269299Y (en) * | 2008-08-20 | 2009-07-08 | 蔡智信 | Differential mechanism |
| US20100151983A1 (en) * | 2008-12-11 | 2010-06-17 | Ziech James F | Spider-less vehicle differential |
| CN201377569Y (en) * | 2009-04-13 | 2010-01-06 | 郑州机械研究所 | Phase-modulated gear case |
| CN103438179A (en) * | 2013-08-09 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Automobile differential mechanism |
| CN205350247U (en) * | 2016-01-22 | 2016-06-29 | 中国科学院宁波材料技术与工程研究所 | Differential mechanism planetary gear structure and vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240448A (en) * | 2016-12-27 | 2018-07-03 | 比亚迪股份有限公司 | Differential mechanism and vehicle |
| CN108240448B (en) * | 2016-12-27 | 2019-12-10 | 比亚迪股份有限公司 | Differential and vehicle |
| US11305581B2 (en) | 2016-12-27 | 2022-04-19 | Byd Company Limited | Drive axle locking device, power-drive system, and vehicle |
| CN107939939A (en) * | 2017-11-21 | 2018-04-20 | 宁波上中下自动变速器有限公司 | A kind of automobile differential |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485291B (en) | 2018-08-28 |
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