CN101020416A - Rear axle of electric tricycle - Google Patents
Rear axle of electric tricycle Download PDFInfo
- Publication number
- CN101020416A CN101020416A CN 200710020711 CN200710020711A CN101020416A CN 101020416 A CN101020416 A CN 101020416A CN 200710020711 CN200710020711 CN 200710020711 CN 200710020711 A CN200710020711 A CN 200710020711A CN 101020416 A CN101020416 A CN 101020416A
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- rear axle
- wheel
- axle
- axle box
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Abstract
The present invention is rear axle of electric tricycle, and belongs to the field of vehicle technology. The rear axle includes a rear axle box, a large bevel gear inside the rear axle box, a differential housing connected to the large bevel gear and with first and second planetary gears, a pair of right and left half-shaft gears meshed with the first and second planetary gears, a pair of right and left half shafts matching the right and left half-shaft gears and the first and second planetary gears separately, a pair of left half shaft sleeves, a motor connected to the rear axle box, and a driving small bevel gear fixed on the output shaft of the motor and meshed with the large bevel gear. The present invention has the advantages of raised road condition adaptability, good operating effect, high safety, less power loss, etc.
Description
Technical field
The present invention relates to a kind of back axle of electro-tricycle, is the improvement to the back axle of existing electro-tricycle, belongs to the applied technical field of vehicle.
Background technology
The back axle of the electro-tricycle in the prior art roughly has two kinds of versions, one is by shown in Figure 3 motor 1 being installed in one of them wheel hub of a pair of wheel hub, directly drive wheel hub by motor 1, make the wheel walking that is installed on a pair of wheel hub (respectively having brake gear), this structure is actually wheel hub motor single shaft power transmission, promptly drives the wheel hub of opposite side by the wheel hub that motor 1 is housed of a side; Another is by shown in Figure 4 motor 1 is contained on the vehicle frame, drive the driven sprocket that is contained in the transmission shaft middle part by messenger chain, make the transmission shaft rotation, rotation by transmission shaft drives one of them the wheel hub rotation that has brake gear respectively that is installed in the transmission shaft two ends, finally make the wheel motion that is installed on it by wheel hub, this structure is actually the power transmission of motor middle, i.e. middle part and motor 1 transmission by transmission shaft connects.
Said structure all belongs to the single shaft transmission or claims the back axle category that single shaft drives, can expose following shortcoming in actual use: the one, the road conditions bad adaptability, because, reason owing to condition of road surface, can not make the resistance of one wheel pairs remain on identical degree, when a collateral resistance big, and opposite side resistance hour, often, cause the accident for the wheel deviation phenomenon occurring; The 2nd, if run into abominable road conditions, for example the wheel of a side is absorbed in the hole, can show the situation that can't go from hole district usually, must be drawn or be released by the manpower application of force of getting off; The 3rd, can handling difference influence safety owing to what single shaft drove, and hill climbing ability is weak, torque is little; The 4th, power consumption is big, and the once electrically-charged distance that continues is short; The 5th, though be equipped with foot drive device, promptly step on step and drive the transmission shaft motion through chain by manpower, the foot pedal apparatus complex structure for example must be by means of the transition member of transition axis and so on, and complicated foot pedal apparatus can increase the weight of car load.
Summary of the invention
Top priority of the present invention is to provide that a kind of road conditions comformability is strong, handling good and it is safe, that hill climbing ability is strong and torque is big to be guaranteed, power consumption is economized and the back axle of energy-conservation electro-tricycle.
Task of the present invention also is to provide a kind of back axle of electro-tricycle simple in structure of foot pedal apparatus.
Finish top priority of the present invention for embodiment, technical scheme provided by the present invention is: a kind of back axle of electro-tricycle, and it comprises a rear axle box; Large bevel gear in the case chamber of rear axle box; One similarly be contained in the case chamber of rear axle box connect firmly mutually with large bevel gear and be furnished with a pair of first, second planetary differential casing; A pair of left and right half gear is separately positioned on large bevel gear and the differential casing, and nibbles with described a pair of first, second planetary wheel respectively and join; A pair of left and right half, each end connects with described left and right half gear respectively, and each other end disposes first, second wheel hub respectively; A pair of left and right half cover is positioned at outside the left and right half, and fixes with rear axle box, back axle lid respectively, and the back axle lid is fixed with rear axle box; One motor connects firmly with rear axle box, is installed with driving bevel pinion on the power take-off shaft of this motor, and this driving bevel pinion is insinuated in the rear axle box and is meshed with large bevel gear.
For another task of the present invention is finished in embodiment, technical scheme provided by the present invention is, offer tongue-and-groove on the bearing seat of described differential casing one end, connected chain pulley seat on the tongue-and-groove, the chain pulley seat hub setting is on right axle shaft, which is provided with sprocket wheel, described back axle covers and offers the chain cylindrical void, and the chain that is placed on the sprocket wheel is drawn in the chain cylindrical void.
Being shaped as of rear axle box of the present invention is cylindric, the shape of described differential casing is bell shape, the wheel body central authorities of the open end end face of bell jar and described large bevel gear one side are fixing, also expand to be provided with at the sidepiece of rear axle box and be used for and the mutually solid connection seat of the motor reaction plate of described motor, rear axle box offers a bevel pinion hole corresponding to the central part of connection seat, and described driving bevel pinion is insinuated into from the bevel pinion hole in the case chamber of rear axle box and meshes with large bevel gear.
The upper and lower each other hub setting accordingly of a pair of first, second planetary wheel of the present invention in differential casing shell chamber, and in the shell chamber jointly with the left and right half gear mesh.
The two ends of left half axle of the present invention constitute first, second spline head respectively, and the first spline head and first wheel are fixed, and first splined hole of the second spline head and left half axle gear is matched; The two ends of described right axle shaft are processed with the 3rd, the 4th spline head respectively, and second splined hole of the 3rd spline head and right axle shaft gear is matched, and the 4th spline head and second wheel hub are fixed.
Left half axle cover of the present invention is fixed with a side opening end of rear axle box, and described back axle lid is fixed with the opposite side open end of rear axle box.
Chain pulley seat of the present invention prominent towards the narrow tenon that shortened into of an end of bearing seat, the prominent tenon of tenon is gone in the described tongue-and-groove.
The cross sectional shape of back axle lid of the present invention is convex shape.
Sprocket wheel of the present invention is an One-way chain wheel.
The present invention is owing to adopted such scheme, one of advantage that embodies, because left and right half can drive first, second wheel hub simultaneously, therefore can show as two-wheel drives, can improve the comformability of electro-tricycle to road conditions, for example any side be disposed at wheel pitfall on the wheel hub, can successfully extricate oneself from a predicament; Two owing to realized the two-wheel driving, therefore operation control is effective, drives steadily laborsavingly, is beneficial to the increase safety; Three, therefore first, second planetary wheel has good differential effect, can improve hill climbing ability and increase torque, increases by 2 times with respect to prior art; Four owing to be that two-wheel drives, loss in efficiency is little, so the power consumptive province, running current is little, continuation mileages for one time charging can increase mileage more than 1/3rd than the single wheel drive (same power motor, same road conditions, homogenous quantities load) of prior art; Five, the structure of foot pedal apparatus is terse.
Description of drawings
Fig. 1 is the cutaway view of the back axle of electro-tricycle of the present invention.
Fig. 2 is the sectional perspective constructional drawing of Fig. 1.
Fig. 3 shows as the scheme drawing (wheel hub motor formula) of single wheel drive for the back axle of the electro-tricycle in the prior art.
Fig. 4 shows as another scheme drawing (motor middle) of single wheel drive for the back axle of the electro-tricycle in the prior art.
The specific embodiment
Description by embodiment given below will help to understand more, but embodiment should not be considered as the restriction to the present invention program, and the conversion of any equivalence all belongs to the category that the present invention program contains.
Ask for an interview Fig. 1 and in conjunction with Fig. 2, be example (as follows) with graphic location status, the both sides of the preferred but rear axle box cylindraceous 11 that is not limited to of shape or claim that two ends are uncovered are to realize that by the following left half axle cover 17 that also will describe in detail, back axle lid 8 lid covers.The end that keeps left in the case chamber of rear axle box 11 is installed with large bevel gear 18, and the differential casing 12 that shape is bell shape integrally is arranged in the case chamber, and the central authorities with large bevel gear 18 1 sides fix with one group of screw 32.In correspondence two sides of differential casing 12 is that the respective side up and down of current icon is respectively by first, second compensating- gear shaft 38,53, a pair of first, second planetary wheel 4,13 of hub setting.Left half axle gear 14 is realized and rear axle box 11 hub settings by means of clutch shaft bearing 15 in the back, axle side gear hole 49 of passing large bevel gear 18 central authorities by himself primary shaft bearing 48; The bearing 54 of right axle shaft gear 10 extend in the seat chamber of the bearing seat 30 that forms on the differential casing 12, and differential casing 12 is realized hub setting by its bearing seat 30 by means of second bearing 9 and back axle lid 8.Show as can be known and by Fig. 1 is clear by assembly relation described above: a pair of first, second planetary wheel 4,13 jointly constitutes meshing relation with a pair of left and right half gear 14,10.
The left and right two ends of left half axle 16 one respectively are processed with first, second spline head 52,31, connect firmly first wheel 27 on the first spline head 52, first wheel 27 does not have with prior art and is not furnished with first brake disc 29 and first brake shoe brake cheek, 28, the first brake discs 29 and left half axle 16 by the bearing 25 formation relations of being pivoted; 31 on the second spline head is presented in the left half axle gear 14, connects with first splined hole 47 on the left half axle gear 14.
The left and right two ends of right axle shaft 24 have been made into integration the 3rd, the 4th spline head 50,51, the three spline heads 50 respectively and have extend in the right axle shaft gear 10, in the axle side gear hole 44 of bearing seat 30 with right axle shaft gear 10 on second splined hole 45 connect; Intrinsic second wheel hub, 20, the second wheel hubs 20 are furnished with second brake disc 19 with prior art indifference strange land on the 4th spline head 51, second brake shoe brake cheek, 22, the second braking plates 19 constitute the relation of being pivoted with right axle shaft 24 by bearing 23.Self-evident, the pair of rear wheels of the electro-tricycle that does not provide among the figure is to be installed in respectively on first, second wheel hub 27,20.For the end that is stuck in the left and right half 16,24 outside first, second wheel hub 29,20 is fixed, the present invention recommends to have first, second nut 26,21 (Fig. 1 shows) in addition.
On the bearing seat 30 of an end of back axle lid 8, be concaved with a tongue-and-groove 46 12 of differential casings, be used for the tenon prominent 42 of compensated chain wheel seat 7.Whole chain wheel seat 7 is placed in cross sectional shape and is in the sprocket wheel chamber 43 of back axle lid 8 of convex shape, and sprocket wheel 6 that can only unidirectional action is installed on the chain pulley seat 7, also sprocket wheel 6 can be formed on the chain pulley seat 7 integratedly.Shown in figure, on back axle lid 8, be formed with an open area, constitute chain cylindrical void 40 by this zone, draw for the chain 41 that is sheathed on the sprocket wheel 6, with the step device connection of electro-tricycle.Whole back axle lid 8 is fixed by the one group of fix screw 39 and the uncovered position, right side of graphic rear axle box 11, with the right openings sealing of rear axle box 11.
As the motor 1 of the power of electro-tricycle be by its motor reaction plate 2 with expand one group of bolt 34 of connection seat 33 usefulness of being located on the rear axle box 11 and fix, connect at the driving bevel pinion on the power take-off shaft of motor 13 by bearing 35 and to be insinuated in the case chamber of rear axle box 11, with large bevel gear 18 engagements corresponding to the bevel pinion hole 37 that is preset on the rear axle box 11.Motor 1 is to be electrically connected with the storage battery of electro-tricycle by power lead 36.Right axle shaft cover 5 usefulness screws shown in the figure and back axle lid 8 are fixing.
The applicant narrates principle of work of the present invention.When battery power and motor 1 connection, motor 1 work, drive driving bevel pinion 3 rotations, drive large bevel gear 18 rotations by driving bevel pinion 3, since large bevel gear 18 with differential casing 12 be connected into, so differential casing 12 is with revolving, on the differential casing 12 a pair of first, second planetary wheel 4,13 drive an a pair of left side, right axle shaft gear 14,10, and then drive left respectively, right axle shaft 16,24 rotations, an a pair of left side, right axle shaft gear 14,10 are installed on first in both sides, second wheel hub 27, can synchronous same-speed under the stressed uniform situation of wheel (not shown) on 20 following aforesaid differential casing 12 rotates together.When the stressed difference in both sides or when turning round, because the wheel turns in outside distance is than the big or title length of rotation distance of inboard wheel, therefore, a pair of first, second planetary wheel 4,13 rotations in opposite directions, make a pair of left and right half gear 14,10 produce the rotating speed that differs from one another, the rotating speed in the outside is fast, and inboard little, so turn round freely; When the arbitrary wheel on being installed in first, second wheel hub 27,20 suffers the pitfall situation,, therefore can extricate oneself from a predicament by the motion of another wheel because the present invention is a wheel driving structure of two.Through the applicant structure of the present invention is installed on the electro-tricycle with prior art as shown in Figure 3, Figure 4 structure under same load, same power, situation, oppose than test with road conditions, the result shows that shockingly the once electrically-charged lasting travelled distance of storage battery (with the same specification storage battery of factory's production) has increased more than 1/3rd, and gradient walking is compared with the hub-type motor-driven and improved 2 times.Therefore the effect of structure of the present invention is ultimate attainment.
When meeting and some situation and need manually trample the time, as long as drive chain 41 by step, drive sprocket wheel 6 by chain 41, and then the tenon prominent 42 that is passed through on the chain pulley seat 7 by sprocket wheel 6 drives differential casings 12, through a pair of first, second planet 4,13, make 14,10 work of left and right half gear, until making left and right half 16,24 rotations.Because the transmission of whole foot pedal apparatus is very simple, therefore tramples comparatively laborsaving and can reduce complete vehicle weight.
Claims (9)
1, a kind of back axle of electro-tricycle is characterized in that it comprises a rear axle box (11); Large bevel gear (18) in the case chamber of rear axle box (11); One similarly is contained in connect firmly mutually with large bevel gear (18) and the differential casing (12) that be furnished with a pair of first, second planetary wheel (4,13) in the case chamber of rear axle box (11); A pair of left and right half gear (14,10) is separately positioned on large bevel gear (18) and the differential casing (12), and nibbles and join with described a pair of first, second planetary wheel (4,13) respectively; A pair of left and right half (16,24), each end connects with described left and right half gear (14,10) respectively, and each other end disposes first, second wheel hub (27,20) respectively; A pair of left and right half cover (17,5) is positioned at outside the left and right half (16,24), and fixes with rear axle box (11), back axle lid (8) respectively, and back axle lid (8) is fixing with rear axle box (11); One motor (1) connects firmly with rear axle box (11), is installed with driving bevel pinion (3) on the power take-off shaft of this motor (1), and this driving bevel pinion (3) is insinuated in the rear axle box (11) and is meshed with large bevel gear (18).
2, the back axle of electro-tricycle according to claim 1, it is characterized in that offering tongue-and-groove (46) on the bearing seat (30) of described differential casing (12) one ends, connected chain pulley seat (7) on the tongue-and-groove (46), chain pulley seat (7) hub setting is on right axle shaft (24), which is provided with sprocket wheel (6), offer chain cylindrical void (40) on the described back axle lid (8), the chain (41) that is placed on the sprocket wheel (6) is drawn in chain cylindrical void (40).
3, the back axle of electro-tricycle according to claim 1, it is characterized in that being shaped as of described rear axle box (11) is cylindric, the shape of described differential casing (12) is bell shape, the wheel body central authorities of the open end end face of bell jar and described large bevel gear (18) one sides are fixing, also expand to be provided with at the sidepiece of rear axle box (11) and be used for and the mutually solid connection seat (33) of the motor reaction plate (2) of described motor (1), rear axle box (11) offers a bevel pinion hole (37) corresponding to the central part of connection seat (33), and described driving bevel pinion (3) is insinuated into from bevel pinion hole (37) in the case chamber of rear axle box (11) and meshes with large bevel gear (18).
4, the back axle of electro-tricycle according to claim 1, it is characterized in that the upper and lower each other hub setting accordingly of described a pair of first, second planetary wheel (4,13) in differential casing (12) shell chamber, and in the shell chamber, jointly mesh with left and right half gear (14,10).
5, the back axle of electro-tricycle according to claim 1, the two ends that it is characterized in that described left half axle (16) constitute first, second spline head (52,31) respectively, the first spline head (52) is fixing with first wheel (27), and the second spline head (31) is matched with first splined hole (47) of left half axle gear (14); The two ends of described right axle shaft (24) are processed with the 3rd, the 4th spline head (50,51) respectively, and the 3rd spline head (50) is matched with second splined hole (45) of right axle shaft gear (10), and the 4th spline head (51) is fixing with second wheel hub (20).
6, the back axle of electro-tricycle according to claim 1 it is characterized in that a side opening end of described left half axle cover (17) and rear axle box (11) is fixed, and described back axle lid (8) is fixed with the opposite side open end of rear axle box (11).
7, the back axle of electro-tricycle according to claim 2, it is characterized in that described chain pulley seat (7) towards the narrow tenon prominent (42) that shortened into of an end of bearing seat (30), prominent (42) tenon of tenon is gone in the described tongue-and-groove (46).
8,, it is characterized in that the cross sectional shape of described back axle lid (8) is convex shape according to the back axle of claim 1 or 2 or 6 described electro-tricycles.
9, the back axle of electro-tricycle according to claim 2 is characterized in that described sprocket wheel (6) is an One-way chain wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710020711 CN101020416A (en) | 2007-03-19 | 2007-03-19 | Rear axle of electric tricycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710020711 CN101020416A (en) | 2007-03-19 | 2007-03-19 | Rear axle of electric tricycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101020416A true CN101020416A (en) | 2007-08-22 |
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ID=38708324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710020711 Pending CN101020416A (en) | 2007-03-19 | 2007-03-19 | Rear axle of electric tricycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101020416A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442189A (en) * | 2011-12-26 | 2012-05-09 | 北京理工华创电动车技术有限公司 | Double-motor coupling driving system |
| CN106314643A (en) * | 2016-10-19 | 2017-01-11 | 田静静 | Electric tricycle with effort-saving turnover self-discharging function |
| CN106564364A (en) * | 2016-10-19 | 2017-04-19 | 长春工业大学 | Drive rear axle of electric vehicle |
| CN109798349A (en) * | 2019-03-19 | 2019-05-24 | 徐工集团工程机械有限公司 | Right angle gear box assembly and special vehicle |
-
2007
- 2007-03-19 CN CN 200710020711 patent/CN101020416A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442189A (en) * | 2011-12-26 | 2012-05-09 | 北京理工华创电动车技术有限公司 | Double-motor coupling driving system |
| CN102442189B (en) * | 2011-12-26 | 2015-04-29 | 北京理工华创电动车技术有限公司 | Double-motor coupling driving system |
| CN106314643A (en) * | 2016-10-19 | 2017-01-11 | 田静静 | Electric tricycle with effort-saving turnover self-discharging function |
| CN106564364A (en) * | 2016-10-19 | 2017-04-19 | 长春工业大学 | Drive rear axle of electric vehicle |
| CN109798349A (en) * | 2019-03-19 | 2019-05-24 | 徐工集团工程机械有限公司 | Right angle gear box assembly and special vehicle |
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