CN103322134A - Double-speed-ratio drive axle - Google Patents
Double-speed-ratio drive axle Download PDFInfo
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- CN103322134A CN103322134A CN 201310226309 CN201310226309A CN103322134A CN 103322134 A CN103322134 A CN 103322134A CN 201310226309 CN201310226309 CN 201310226309 CN 201310226309 A CN201310226309 A CN 201310226309A CN 103322134 A CN103322134 A CN 103322134A
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- gear
- shaft
- bevel gear
- synchronizer
- speed
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Abstract
A double-speed-ratio drive axle comprises an input shaft, a first gear, a second gear, a bevel gear shaft and a differential. A synchronizer is installed on the input shaft along the axis in a sliding mode, the synchronizer is provided with a shift fork for driving the synchronizer to slide along the axis, the first gear and the second gear are mounted on two sides of the synchronizer respectively, the synchronizer is meshed with the first gear or the second gear after sliding to a reasonable position, the first gear is constantly meshed with a gear shaft, a small-speed-ration bevel gear is fixed at the end of the gear shaft, the bevel gear surface of the small-speed-ration bevel gear is constantly meshed with the bevel gear surface of the bevel gear shaft, the second gear is constantly meshed with an inner gear ring which is fixedly installed on a shaft of a large-speed-ratio bevel gear, the bevel gear surface of the large-speed-ratio bevel gear is constantly meshed with the bevel gear surface of the bevel gear shaft, and the bevel gear shaft is fixedly mounted on the differential. The double-speed-ratio drive axle is simple in structure and more efficient in fuel than existing single-speed-ratio drive axles.
Description
Technical field
The present invention relates to a kind of drive unit, be specifically related to a kind of double speed and compare ransaxle.
Background technique
At present, the effect of ransaxle is that motor is produced the driving force (torsion) that power (torsion) converts automotive wheel to, and automobile is exercised.Ransaxle can be according to the difference of speed ratio, and the power (torsion) with motor produces can carry out different increases, and speed ratio is big, and the driving force of generation (torsion) is big, but rotating speed is low, and speed ratio is little, and the driving force of generation (torsion) is little, but the rotating speed height.
Now the ransaxle that uses of automobile all be single speed than bridge, single speed than the shortcoming of bridge is, when ransaxle is large speed ratio, can produce very big driving force (torsion), but speed (rotating speed) is slow, if want to improve the automobile running velocity, just needs to improve the rotating speed of motor.When ransaxle is little speed ratio, can improve the automobile running velocity, but when vehicle starting, need the power (torsion) of motor output big, therefore need join powerful motor.Therefore, be necessary ransaxle is improved.
Summary of the invention
Technical problem solved by the invention is to provide a kind of double speed than ransaxle, thereby solves the problem in the above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of double speed comprises input shaft, first gear, second gear, conical tooth shaft and differential mechanism than ransaxle, and described input shaft upper edge axis is slidingly fitted with synchronizer, and described synchronizer is provided with in order to drive the shift fork that it slides along axis;
Described first gear and second gear are installed on the both sides of described synchronizer respectively, and described synchronizer is connected with a joggle with described first gear or second gear after sliding into rational position;
Described first gear often is engaged with gear shaft, and fixedly there is little speed ratio bevel gear the end of described gear shaft, and the awl flank of tooth of described little speed ratio bevel gear and the awl flank of tooth of described conical tooth shaft keep normal engagement;
Described second gear often is engaged with ring gear, and described ring gear is fixedly installed on the axle of a large speed ratio bevel gear, and the awl flank of tooth of described large speed ratio bevel gear and the awl flank of tooth of described conical tooth shaft keep normal engagement;
Described conical tooth shaft is fixedly installed on the described differential mechanism.
As a kind of improvement, described differential mechanism is connected to the wheel at two ends by two semiaxis.
Described rational position refers to that synchronizer is in axial sliding under shift fork drives, thereby can realize position engaged with first gear or second gear.
Working principle of the present invention is as follows: when automobile need be started to walk, by the control fork, engagement cover on the synchronizer is connected with second gear, second gear and ring gear are to keep normal engagement, ring gear is to be fixed on the large speed ratio bevel gear, the awl flank of tooth of large speed ratio bevel gear and the awl flank of tooth of described conical tooth shaft keep normal engagement, the power (torsion) of motor output passes through input shaft, be delivered on the synchronizer, because the engagement cover on the synchronizer is to be meshed with second gear, therefore power (torsion) is delivered on second gear by synchronizer, be delivered on the large speed ratio bevel gear by ring gear by second gear, the awl flank of tooth of large speed ratio bevel gear and the awl flank of tooth of described conical tooth shaft keep normal engagement again, rotate thereby drive the tooth axle, because the existence of large speed ratio bevel gear, therefore after conical tooth shaft produces the amplification of a power (torsion), by differential mechanism, through semiaxis, produce very big driving force (torsion) at wheel, automobile is exercised.
When automobile needs high speed driving, by the control fork, engagement cover on the synchronizer is disconnected with second gear, and be connected with first gear, first gear and gear shaft are to keep normal engagement, fixedly there is little speed ratio bevel gear the end of gear shaft, and the awl flank of tooth of little speed ratio bevel gear and the awl flank of tooth of described conical tooth shaft keep normal engagement.The power (torsion) of motor output passes through input shaft, be delivered on the synchronizer, because the engagement cover on the synchronizer is to mesh with first gear, therefore power (torsion) is delivered on first gear by synchronizer, be delivered on the little speed ratio bevel gear by gear shaft by first gear again, little speed ratio bevel gear goes up and the awl flank engagement of conical tooth shaft, owing to be a little speed ratio bevel gear, therefore the power (torsion) on conical tooth shaft diminishes, but rotating speed improves, by differential mechanism, through semiaxis, produce very high rotating speed at wheel, automobile high-speed is exercised.
Owing to adopted above structure, the present invention has following beneficial effect:
Double speed is at a ransaxle two speed ratios to be arranged than ransaxle, a large speed ratio, a little speed ratio, large speed ratio is to exercise use at vehicle starting and low speed, because the driving force (torsion) that large speed ratio can produce is bigger, just can reduce the power output of motor.Little speed ratio is to use when automobile high-speed is exercised, because the rotating speed height of little speed ratio, can reduce the rotating speed of motor like this.Therefore the single-stage double speed is a kind of ransaxle that can improve the motor utilization efficiency than ransaxle.
Structure of the present invention is very simple, but compare than ransaxle with present single speed, automobile in equal in quality uses, double speed can use the littler motor of power than ransaxle, because the power of motor is little, oil consumption is just few, therefore, double speed than ransaxle than present single speed than ransaxle, more fuel-efficient.
Description of drawings
Fig. 1 is structural representation of the present invention;
Action schematic representation of the present invention when Fig. 2 is vehicle starting;
Action schematic representation of the present invention when Fig. 3 is automobile high-speed.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, a kind of double speed compares ransaxle, comprise input shaft 1, first gear 2, second gear 6, conical tooth shaft 9 and differential mechanism 11, described input shaft 1 upper edge axis is slidingly fitted with synchronizer 5, and described synchronizer 5 is provided with in order to drive the shift fork 4 that it slides along axis; Described first gear 2 and second gear 6 are installed on the both sides of described synchronizer 5 respectively, and described synchronizer 5 is connected with a joggle with described first gear 2 or second gear 6 after sliding into rational position; Described first gear 2 often is engaged with gear shaft 3, and fixedly there is little speed ratio bevel gear 12 end of described gear shaft 3, and the awl flank of tooth B face of the awl flank of tooth of described little speed ratio bevel gear 12 and described conical tooth shaft 9 keeps normal engagement; Described second gear 6 often is engaged with ring gear 7, and described ring gear 7 is fixedly installed on the axle of a large speed ratio bevel gear 8, and the awl flank of tooth A face of the awl flank of tooth of described large speed ratio bevel gear 8 and described conical tooth shaft 9 keeps normal engagement; Described conical tooth shaft 9 is fixedly installed on the described differential mechanism 11.
In the present embodiment, described differential mechanism 11 is connected to the wheel at two ends by two semiaxis 10.
Working principle of the present invention is as follows: as shown in Figure 2, when automobile need be started to walk, by control fork 4, engagement cover on the synchronizer 5 is connected with second gear 6, second gear 6 is to keep normal engagement with ring gear 7, ring gear 7 is to be fixed on the large speed ratio bevel gear 8, the awl flank of tooth A face of the awl flank of tooth of large speed ratio bevel gear 8 and described conical tooth shaft 9 keeps normal engagement, the power (torsion) of motor output is by input shaft 1, be delivered on the synchronizer 5, because the engagement cover on the synchronizer 5 is to be meshed with second gear 6, therefore power (torsion) is delivered on second gear 6 by synchronizer 5, be delivered on the large speed ratio bevel gear 8 by ring gear 7 by second gear 6 again, the awl flank of tooth A face of the awl flank of tooth of large speed ratio bevel gear 8 and described conical tooth shaft 9 keeps normal engagement, thereby driving tooth axle 9 rotates, because the existence of large speed ratio bevel gear 8, therefore after conical tooth shaft 9 produces the amplification of a power (torsion), by differential mechanism 11, through semiaxis 10, produce very big driving force (torsion) at wheel, automobile is exercised.
As shown in Figure 3, when automobile needs high speed driving, by control fork 4, engagement cover on the synchronizer 5 is disconnected with second gear 6, and be connected with first gear 2, first gear 2 is to keep normal engagement with gear shaft 3, and fixedly there is little speed ratio bevel gear 12 end of gear shaft 3, and the awl flank of tooth B face of the awl flank of tooth of little speed ratio bevel gear 12 and described conical tooth shaft 9 keeps normal engagement.The power (torsion) of motor output is by input shaft 1, be delivered on the synchronizer 5, because the engagement cover on the synchronizer 5 is and 2 engagements of first gear, therefore power (torsion) is delivered on first gear 2 by synchronizer 5, be delivered on the little speed ratio bevel gear 12 by gear shaft 3 by first gear 2 again, awl flank of tooth B face with conical tooth shaft 9 on the little speed ratio bevel gear 12 meshes, owing to be a little speed ratio bevel gear 12, therefore the power (torsion) on conical tooth shaft 9 diminishes, but rotating speed improves, by differential mechanism 11, through semiaxis 10, produce very high rotating speed at wheel, automobile high-speed is exercised.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; 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 all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a double speed is characterized in that than ransaxle: comprise input shaft, first gear, second gear, conical tooth shaft and differential mechanism, described input shaft upper edge axis is slidingly fitted with synchronizer, and described synchronizer is provided with in order to drive the shift fork that it slides along axis;
Described first gear and second gear are installed on the both sides of described synchronizer respectively, and described synchronizer is connected with a joggle with described first gear or second gear after sliding into rational position;
Described first gear often is engaged with gear shaft, and fixedly there is little speed ratio bevel gear the end of described gear shaft, and an awl flank of tooth of the awl flank of tooth of described little speed ratio bevel gear and described conical tooth shaft keeps normal engagement;
Described second gear often is engaged with ring gear, and described ring gear is fixedly installed on the axle of a large speed ratio bevel gear, and an awl flank of tooth of the awl flank of tooth of described large speed ratio bevel gear and described conical tooth shaft keeps normal engagement;
Described conical tooth shaft is fixedly installed on the described differential mechanism.
2. a kind of double speed according to claim 1 is characterized in that than ransaxle: described differential mechanism is connected to the wheel at two ends by two semiaxis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310226309 CN103322134A (en) | 2013-06-04 | 2013-06-04 | Double-speed-ratio drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310226309 CN103322134A (en) | 2013-06-04 | 2013-06-04 | Double-speed-ratio drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103322134A true CN103322134A (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310226309 Pending CN103322134A (en) | 2013-06-04 | 2013-06-04 | Double-speed-ratio drive axle |
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| Country | Link |
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| CN (1) | CN103322134A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016070408A1 (en) * | 2014-11-07 | 2016-05-12 | 李春继 | Double-speed-ratio double-torsion speed reducer |
| CN106015471A (en) * | 2016-07-29 | 2016-10-12 | 李春继 | Speed reducer |
| CN107725703A (en) * | 2017-11-17 | 2018-02-23 | 深圳市佳得设备科技有限公司 | A kind of micro- speed ratio mechanism |
-
2013
- 2013-06-04 CN CN 201310226309 patent/CN103322134A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016070408A1 (en) * | 2014-11-07 | 2016-05-12 | 李春继 | Double-speed-ratio double-torsion speed reducer |
| CN106687714A (en) * | 2014-11-07 | 2017-05-17 | 李春继 | Double-speed-ratio double-torsion speed reducer |
| CN106015471A (en) * | 2016-07-29 | 2016-10-12 | 李春继 | Speed reducer |
| CN106015471B (en) * | 2016-07-29 | 2020-09-08 | 李春继 | Speed reducer |
| CN107725703A (en) * | 2017-11-17 | 2018-02-23 | 深圳市佳得设备科技有限公司 | A kind of micro- speed ratio mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |