CN105909730A - Meshing gear for speed reducer of lightweight electric automobile - Google Patents
Meshing gear for speed reducer of lightweight electric automobile Download PDFInfo
- Publication number
- CN105909730A CN105909730A CN201610501870.6A CN201610501870A CN105909730A CN 105909730 A CN105909730 A CN 105909730A CN 201610501870 A CN201610501870 A CN 201610501870A CN 105909730 A CN105909730 A CN 105909730A
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- Prior art keywords
- gear
- grades
- bore
- end difference
- level
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
Abstract
The invention relates to a meshing gear for a speed reducer of a lightweight electric automobile. The meshing gear is arranged in the speed reducer and comprises an input gear, a driving gear and an output gear which are mutually meshed; the input gear comprises an input shaft; a bearing A is arranged at each of two ends of the input shaft in a sleeving way; a first-stage master gear is arranged on the input shaft in the sleeving way; the driving gear comprises a driving shaft; a bearing B is arranged at each of two ends of the driving shaft in the sleeving way; a first-stage slave gear and a second-stage master gear are arranged on the driving shaft in the sleeving way; the output gear comprises an output shaft; a bearing C is arranged at each of two ends of the output shaft in the sleeving way; and a second-stage slave gear is arranged on the output shaft in the sleeving way. The meshing gear disclosed by the invention has the advantages that by tip relief improvement on the structure of a traditional meshing gear, the weight of the whole meshing gear is reduced to 6.16kg; the weight of the meshing gear is effectively reduced, so that the requirement of the meshing gear on light weight is met; and in addition, the mounting position of the gear is changed, thereby meeting the reliable requirement of the gear on noise reduction.
Description
Technical field
The present invention relates to electric automobile manufacture field, particularly to a kind of light-weight electric automobile decelerator meshing gear.
Background technology
Along with " energy-conserving and environment-protective " have increasingly becomed the topic of extensive concern, lightweight is also widely applied to general-utility car field, outstanding fuel-economizing can also be had to show while raising is handling.The oil consumption of automobile depends primarily on the discharge capacity of electromotor and the gross mass of automobile, on the premise of keeping the constant even optimization of automobile overall quality, performance and cost, reduce automobile own wt to improve output, reduce noise, promote handling, reliability, improve speed, reduce oil consumption, reduce discharge amount of exhaust gas, promote safety.Having research numerical monitor, if vehicle complete vehicle weight reduction 10%, fuel efficiency can improve 6%-8%；If resistance to rolling reduces 10%, fuel efficiency can improve 3%；If the transmission efficiency of the device such as vehicle bridge, variator improves 10%, fuel efficiency can improve 7%.General body of a motor car accounts for about the 30% of automobile gross mass, and under no-load condition, the oil consumption of about 70% is used on vehicle body kerb weight.Therefore, vehicle body lighten the fuel economy for car load, reduce Litter discharge, save material resources, save production cost the most of great advantage.
In automobile production field, the speed of electric automobile during traveling and course continuation mileage are owing to the weight of automobile itself determines greatly, it is therefore desirable to alleviate the weight of electric automobile and allow its lightweight so that it is have faster speed, save and produce material；Increase course continuation mileage；Important in the link alleviate weight one carries out loss of weight to decelerator exactly.And while carrying out loss of weight, in order to coordinate the lightweight of decelerator, for the gear being arranged in decelerator, the noise reduction requirement more than 1.2 and when using of the safety coefficient of gear to be guaranteed.
Summary of the invention
The technical problem to be solved in the present invention is to provide the tip relief of a kind of light-weight electric automobile decelerator meshing gear and improves, it can be ensured that the noise reduction requirement when safety coefficient of gear and use.
For solving above-mentioned technical problem, the technical scheme is that a kind of light-weight electric automobile decelerator meshing gear, its innovative point is: described meshing gear is arranged in decelerator, including intermeshing input gear, travelling gear and output gear；
Described input gear includes a power shaft, the two ends of this power shaft are respectively installed with a bearing A, power shaft is set with one-level master gear, described power shaft is stepped, it is respectively the first end difference, the second end difference, the 3rd end difference, fourth order ladder portion and the 5th end difference being sequentially distributed from left to right, and one-level master gear is sleeved on the outside of the second end difference, two bearing A are set in the first end difference, the outside in fourth order ladder portion；
Described travelling gear includes a power transmission shaft, a bearing B it is respectively installed with at the two ends of power transmission shaft, power transmission shaft is set with one-level from gear, two grades of master gears, described one-level engages each other with one-level master gear from gear, described power transmission shaft is stepped, it is respectively the first ladder section, second-order bench, the 3rd ladder section and the fourth order bench being sequentially distributed from left to right, and one-level from gear set in the outside of second-order bench, two grades of master gears are sleeved on the outside of the 3rd ladder section, and two bearing B are set in the first ladder section, the outside of fourth order bench；
Described output gear includes an output shaft, a bearing C it is respectively installed with at the two ends of output shaft, output shaft is set with two grades from gear, described two grades engage each other from gear and two grades of master gears, the medium position of described output shaft is interception shape, two ends are cylindrical, and two grades from gear set at the medium position of output shaft, two bearing C are set on the cylindrical section of output shaft；
Described one-level master gear, one-level are gradually increased from the bore of gear from gear, two grades of master gears and two grades.
Further, the engagement stress of described one-level master gear is 665MPa, and one-level is 684MPa from the engagement stress of gear, and the engagement stress of two grades of master gears is 671MPa, and two grades is 692MPa from the engagement stress of gear.
Further, the bore of described 3rd end difference > bore of the second end difference > bore in bore=fourth order ladder portion of the first end difference > bore of the 5th end difference.
Further, the bore of described second-order bench > bore of the 3rd ladder section > bore of bore=fourth order bench of the first ladder section.
It is an advantage of the current invention that: in the present invention, by the structure of traditional meshing gear is improved tip relief, make the weight reduction of whole meshing gear to 6.16kg, effectively reduce the weight of meshing gear, meet its light-weighted requirement, additionally the installation site of bearing is changed, thus meets the reliable requirement of gear noise reduction.
By one-level master gear, one-level are controlled from the engagement stress of gear from gear, two grades of master gears and two grades such that it is able to well meet the safety coefficient of the gear demand more than 1.2.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the light-weight electric automobile decelerator meshing gear of the present invention.
Fig. 2 is the side view of the light-weight electric automobile decelerator meshing gear of the present invention.
Fig. 3 is the schematic diagram of power shaft in the present invention.
Fig. 4 be in the present invention one-level from the schematic diagram of gear.
Fig. 5 is the schematic diagram of power transmission shaft in the present invention.
Fig. 6 be in the present invention two grades from the schematic diagram of gear.
Detailed description of the invention
The following examples can make professional and technical personnel that the present invention is more fully understood, but the most therefore limits the present invention among described scope of embodiments.
A kind of light-weight electric automobile decelerator meshing gear as shown in figs 1 to 6, meshing gear is arranged in decelerator, including intermeshing input gear 1, travelling gear 2 and output gear 3.
Input gear 1 includes a power shaft 11, the two ends of this power shaft 11 are respectively installed with a bearing A12, power shaft 11 is set with one-level master gear 13, power shaft 11 is stepped, as shown in Figure 3, it is respectively first end difference the 14, second end difference the 15, the 3rd end difference 16, fourth order ladder portion 17 and the 5th end difference 18 being sequentially distributed from left to right, and one-level master gear 13 is sleeved on the outside of the second end difference 15, two bearing A12 are set in the first end difference 14, the outside in fourth order ladder portion 15.
The bore of the 3rd end difference 16 > bore of the second end difference 15 > bore in bore=fourth order ladder portion 17 of the first end difference 14 > bore of the 5th end difference 18.
Travelling gear includes a power transmission shaft 21, a bearing B22 it is respectively installed with at the two ends of power transmission shaft 21, power transmission shaft 21 is set with one-level from gear 23, two grades of master gears 24, one-level engages each other with one-level master gear 13 from gear 23, power transmission shaft 21 is stepped, as shown in Figure 4, it is respectively the first ladder section 24 being sequentially distributed from left to right, second-order bench 25, 3rd ladder section 26 and fourth order bench 27, and one-level is sleeved on the outside of second-order bench 25 from gear 23, two grades of master gears 24 are sleeved on the outside of the 3rd ladder section 26, two bearing B22 are set in the first ladder section 24, the outside of fourth order bench 27.
The bore of second-order bench 25 > bore of the 3rd ladder section 26 > bore of bore=fourth order bench 27 of the first ladder section 24.
Output gear 3 includes an output shaft 31, a bearing C32 it is respectively installed with at the two ends of output shaft 31, output shaft 31 is set with two grades from gear 33, two grades engage each other with two grades of master gears 24 from gear 33, the medium position of output shaft 31 is interception shape, two ends are cylindrical, and two grades of medium positions being sleeved on output shaft 31 from gear 24, and two bearing C32 are set on the cylindrical section of output shaft 31.
One-level master gear 13, one-level are gradually increased from 23, two grades of master gears 24 of gear and two grades of bores from gear 33.
The engagement stress of one-level master gear 13 is 665MPa, and one-level is 684MPa from the engagement stress of gear 23, and the engagement stress of two grades of master gears 24 is 671MPa, and two grades is 692MPa from the engagement stress of gear 33.
Table 1 is the safety coefficient table of each gear in the present invention:
| Gear | One-level master gear | One-level is from gear | Two grades of master gears | Two grades from gear |
| Stress | 665 | 684 | 671 | 692 |
| Safety coefficient | 1.28 | 1.24 | 1.27 | 1.23 |
Can be evident that from upper table, by one-level master gear 13, one-level are controlled from the engagement stress of gear 33 from 23, two grades of master gears 24 of gear and two grades such that it is able to well meet the safety coefficient of the gear demand more than 1.2.
Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (4)
1. a light-weight electric automobile decelerator meshing gear, it is characterised in that: described meshing gear is arranged in decelerator, including intermeshing input gear, travelling gear and output gear；
Described input gear includes a power shaft, the two ends of this power shaft are respectively installed with a bearing A, power shaft is set with one-level master gear, described power shaft is stepped, it is respectively the first end difference, the second end difference, the 3rd end difference, fourth order ladder portion and the 5th end difference being sequentially distributed from left to right, and one-level master gear is sleeved on the outside of the second end difference, two bearing A are set in the first end difference, the outside in fourth order ladder portion；
Described travelling gear includes a power transmission shaft, a bearing B it is respectively installed with at the two ends of power transmission shaft, power transmission shaft is set with one-level from gear, two grades of master gears, described one-level engages each other with one-level master gear from gear, described power transmission shaft is stepped, it is respectively the first ladder section, second-order bench, the 3rd ladder section and the fourth order bench being sequentially distributed from left to right, and one-level from gear set in the outside of second-order bench, two grades of master gears are sleeved on the outside of the 3rd ladder section, and two bearing B are set in the first ladder section, the outside of fourth order bench；
Described output gear includes an output shaft, a bearing C it is respectively installed with at the two ends of output shaft, output shaft is set with two grades from gear, described two grades engage each other from gear and two grades of master gears, the medium position of described output shaft is interception shape, two ends are cylindrical, and two grades from gear set at the medium position of output shaft, two bearing C are set on the cylindrical section of output shaft；
Described one-level master gear, one-level are gradually increased from the bore of gear from gear, two grades of master gears and two grades.
Light-weight electric automobile decelerator meshing gear the most according to claim 1, it is characterized in that: the engagement stress of described one-level master gear is 665MPa, one-level is 684MPa from the engagement stress of gear, the engagement stress of two grades of master gears is 671MPa, and two grades is 692MPa from the engagement stress of gear.
Light-weight electric automobile decelerator meshing gear the most according to claim 1, it is characterised in that: the bore of described 3rd end difference > bore of the second end difference > bore in bore=fourth order ladder portion of the first end difference > bore of the 5th end difference.
Light-weight electric automobile decelerator meshing gear the most according to claim 1, it is characterised in that: the bore of described second-order bench > bore of the 3rd ladder section > bore of bore=fourth order bench of the first ladder section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501870.6A CN105909730A (en) | 2016-06-30 | 2016-06-30 | Meshing gear for speed reducer of lightweight electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501870.6A CN105909730A (en) | 2016-06-30 | 2016-06-30 | Meshing gear for speed reducer of lightweight electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN105909730A true CN105909730A (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610501870.6A Pending CN105909730A (en) | 2016-06-30 | 2016-06-30 | Meshing gear for speed reducer of lightweight electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111345484A (en) * | 2020-03-11 | 2020-06-30 | 四川自立机械有限公司 | Energy-saving pressure-maintaining rotary valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568531U (en) * | 2009-12-24 | 2010-09-01 | 盐城中马汽车零部件有限公司 | Speed reducer assembly for electric car |
| CN201875102U (en) * | 2010-10-20 | 2011-06-22 | 无锡晶华汽车零部件有限公司 | Speed reducer for four-wheel drive electric vehicle |
| CN102691776A (en) * | 2011-03-22 | 2012-09-26 | 孙广柱 | Electric car gearbox |
| CN203035880U (en) * | 2013-01-30 | 2013-07-03 | 台州金纳车桥有限公司 | Differential mechanism used for new energy automobile |
| CN204140788U (en) * | 2014-09-15 | 2015-02-04 | 青州圣荣源齿轮有限公司 | Low-speed electronic automobile variable speed box assembly |
| CN205824048U (en) * | 2016-06-30 | 2016-12-21 | 江苏汤臣汽车零部件有限公司 | A kind of light-weight electric automobile decelerator meshing gear |
-
2016
- 2016-06-30 CN CN201610501870.6A patent/CN105909730A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568531U (en) * | 2009-12-24 | 2010-09-01 | 盐城中马汽车零部件有限公司 | Speed reducer assembly for electric car |
| CN201875102U (en) * | 2010-10-20 | 2011-06-22 | 无锡晶华汽车零部件有限公司 | Speed reducer for four-wheel drive electric vehicle |
| CN102691776A (en) * | 2011-03-22 | 2012-09-26 | 孙广柱 | Electric car gearbox |
| CN203035880U (en) * | 2013-01-30 | 2013-07-03 | 台州金纳车桥有限公司 | Differential mechanism used for new energy automobile |
| CN204140788U (en) * | 2014-09-15 | 2015-02-04 | 青州圣荣源齿轮有限公司 | Low-speed electronic automobile variable speed box assembly |
| CN205824048U (en) * | 2016-06-30 | 2016-12-21 | 江苏汤臣汽车零部件有限公司 | A kind of light-weight electric automobile decelerator meshing gear |
Non-Patent Citations (2)
| Title |
|---|
| 尹喜云: "《机械设计基础》", 31 August 2015, 北京航空航天大学出版社 * |
| 张建寿 谢咏絮等: "《机械和液压噪声及其控制》", 31 March 1987, 上海科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111345484A (en) * | 2020-03-11 | 2020-06-30 | 四川自立机械有限公司 | Energy-saving pressure-maintaining rotary valve |
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| PB01 | Publication | ||
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Application publication date: 20160831 |