CN204175901U - Electric motor car Transaxle assembly - Google Patents

Electric motor car Transaxle assembly Download PDF

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Publication number
CN204175901U
CN204175901U CN201420531627.5U CN201420531627U CN204175901U CN 204175901 U CN204175901 U CN 204175901U CN 201420531627 U CN201420531627 U CN 201420531627U CN 204175901 U CN204175901 U CN 204175901U
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CN
China
Prior art keywords
gear
driving
shaft
driven
transmission
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.)
Expired - Fee Related
Application number
CN201420531627.5U
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Chinese (zh)
Inventor
蒋辉
王吉龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING LONGWANG ELECTROMECHANICAL Co Ltd
Original Assignee
CHONGQING LONGWANG ELECTROMECHANICAL Co Ltd
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Publication date
Application filed by CHONGQING LONGWANG ELECTROMECHANICAL Co Ltd filed Critical CHONGQING LONGWANG ELECTROMECHANICAL Co Ltd
Priority to CN201420531627.5U priority Critical patent/CN204175901U/en
Application granted granted Critical
Publication of CN204175901U publication Critical patent/CN204175901U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of electric motor car Transaxle assembly, comprise case of transmission, power input shaft, driving shaft and driven shaft, driving shaft is provided with slow shelves driving gear and fast shelves driving gear, driven shaft is provided with and the slow shelves driven gear of slow shelves driving gear engagement driving and the fast shelves driven gear with fast shelves driving gear engagement driving, the cooperation of power input shaft upper driving is provided with power input gear, with power input gear and fast shelves driven gear engagement driving while of fast shelves driving gear, and then the secondary quantity of gears meshing can be reduced, can effectively realize deceleration increment again simultaneously, finally improve compactedness and the transmission efficiency of Transaxle structure.

Description

Electric motor car Transaxle assembly
Technical field
The utility model relates to electric motor car part field, specifically a kind of electric motor car Transaxle assembly.
Background technique
Along with the fast development of society, people get more and more to the functional requirement of electric vehicle, and usage space requires greatly more next, and performance requirement is also more and more higher.At present, the drive form of general electric vehicle connects mainly through the Transaxle assembly of integral type and drives raise to carry out walking operation, there is chassis and take up room little in this drive form, be beneficial to the layout of power cell of vehicle, simultaneously, relatively too increase the dutycycle of electrokinetic cell, thus electric vehicle course continuation mileage is extended, in existing integral type Transaxle assembly, in order to realize deceleration increment, usually a jack shaft is set between the pto=power take-off and differential mechanism of transmission assembly, jack shaft upper driving arranges an input gear and output gear engages with pto=power take-off output gear and differential gear respectively, to realize deceleration increment, or a preposition input shaft is set before transmission power input shaft, this input shaft is arranged the driven gear engagement driving on a driving gear and power input shaft, the Transaxle assembly of this structural type, the secondary quantity of gears meshing in Transmitted chains is more, make its structure comparatively complicated, again reduce the transmission efficiency of Transaxle assembly simultaneously.
Therefore, for overcoming the above problems, needing one can reduce the secondary quantity of gears meshing, effectively can realize again the electric motor car Transaxle assembly of deceleration increment, to increase compactedness and the transmission efficiency of Transaxle structure simultaneously.
Model utility content
In view of this, the purpose of this utility model overcomes defect of the prior art, provides a kind of transmission efficiency can carrying power, can simplify again the electric motor car Transaxle assembly of drive mechanism.
Electric motor car Transaxle assembly of the present utility model, comprise case of transmission, power input shaft, driving shaft and driven shaft, driving shaft is provided with slow shelves driving gear and fast shelves driving gear, driven shaft is provided with and the slow shelves driven gear of slow shelves driving gear engagement driving and the fast shelves driven gear with fast shelves driving gear engagement driving, and the cooperation of power input shaft upper driving is provided with and keeps off soon driving gear or keeps off the power input gear of driving gear engagement driving slowly;
Further, described power input gear and fast shelves driving gear engagement driving;
Further, described power input shaft, driving shaft and driven shaft axis are parallel to each other;
Further, described slow shelves driving gear and fast shelves driving gear all coordinate with driving shaft transmission, slow shelves driven gear and fast shelves driven gear all rotatably coordinate with driven shaft, and driven shaft is arranged with coupling at slow shelves driven gear and fast gear between driven gear in the mode of the circumferencial direction transmission that can slide axially;
Further, also comprise differential mechanism, differential mechanism comprises differential casing and differential gear assembly, and differential casing is monolithic construction;
Further, described case of transmission is integrally formed or be directly fixedly connected with the cavity be provided with for holding differential mechanism, and differential casing is set in rotation with case of transmission;
Further, described driven shaft transmission is combined with power output gear, and differential mechanism comprises and is equipped with for the differential gear with power output gear engagement driving with differential casing transmission;
Further, described power output gear and driven shaft one-body molded, power input gear and power input shaft one-body molded;
Further, also comprise the gearshift mechanism slid axially for controlling coupling, gearshift mechanism comprises sliding axially and is connected to case of transmission and the shift shaft be arranged in parallel with driven shaft, and shift shaft is fixed with the shift fork slid axially for promoting coupling;
Further, return spring is provided with between shift fork and case of transmission inwall.
The beneficial effects of the utility model are: electric motor car Transaxle assembly of the present utility model, the cooperation of power input shaft upper driving is provided with and keeps off soon driving gear or keeps off the power input gear of driving gear engagement driving slowly, power input gear and keep off soon driving gear or keep off driving gear engagement driving and can realize carrying out deceleration increment between input shaft and driving shaft slowly, fast gear driving gear or slow shelves driving gear form speed changer and keep off soon or shelves Transmitted chains slowly with keep off driven gear soon or keep off driven gear engagement driving slowly, therefore, fast gear driving gear or slow shelves driving gear can simultaneously as the driven gear of retarder and the driving gears of speed changer, reduce the gear quantity on driving shaft, shorten the length needed for driving shaft, reduce the axial dimension of retarder, make its compact structure, on the other hand, reduce gear quantity and can reduce the power loss of gear in transmission process, and then improve the transmission efficiency of speed changer.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of gearshift of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure, the electric motor car Transaxle assembly of the present embodiment, comprise case of transmission 14, power input shaft 1, driving shaft 2 and driven shaft 9, driving shaft 2 is provided with slow shelves driving gear 12 and fast shelves driving gear 13, driven shaft 9 is provided with and the slow shelves driven gear 10 of slow shelves driving gear 12 engagement driving and the fast shelves driven gear with fast shelves driving gear engagement driving, power input shaft 1 upper driving coordinates the power input gear be provided with keeping off driving gear 13 or slow shelves driving gear 12 engagement driving soon, power input gear and keep off soon driving gear 13 or slowly shelves driving gear 12 engagement driving can realize carrying out deceleration increment between input shaft and driving shaft 2, fast gear driving gear 13 or slow shelves driving gear form speed changer and keep off soon or shelves Transmitted chains slowly with keep off driven gear soon or keep off driven gear engagement driving slowly, therefore, fast gear driving gear 13 or slow shelves driving gear can simultaneously as the driven gear of retarder and the driving gears of speed changer, reduce the gear quantity on driving shaft 2, shorten the length needed for driving shaft 2, reduce the axial dimension of retarder, make its compact structure, on the other hand, reduce gear quantity and can reduce the power loss of gear in transmission process, and then improve the transmission efficiency of speed changer.
In the present embodiment, described power input gear 1 and fast shelves driving gear 13 engagement driving, fast shelves driving gear 13 is used as reduction driven gear, to reduce gear quantity thus to reduce the power loss of gear in transmission process, and then improve the transmission efficiency of speed changer, certainly, power input gear 15 also can with slow shelves driving gear 12 engagement driving, slow shelves driving gear 12 can be made equally while the slow shelves Transmitted chains of formation as reduction driven gear, but, the slow shelves driving gear more than 12 of gear ratio due to fast shelves driving gear 13, therefore, under the condition that power input gear 15 number of teeth is identical, it is larger that itself and fast shelves shelves driving gear engage the reduction speed ratio realized.
In the present embodiment, described power input shaft 1, driving shaft 2 and driven shaft 9 axis are parallel to each other, gear on power input shaft 1, driving shaft 2 and driven shaft 9 also all adopts cylindrical gears to realize transmission between parallel axes, this arrangement can improve the compactedness of speed changer structure greatly, reduce the height of this Transaxle assembly, on the other hand, make power input device (motor etc.) that this Transaxle side can be arranged in, the power transmission system of vehicle is arranged more compact.
In the present embodiment, described slow shelves driving gear 12 and fast shelves driving gear 13 all coordinate with driving shaft 2 transmission, " transmission cooperation " described in the utility model refers to and coordinates in the mode of transferring power, comprise engagement driving, spline drived coordinates or integrally formed etc., slow shelves driven gear 10 and fast shelves driven gear all rotatably coordinate with driven shaft 9, driven shaft 9 is arranged with coupling 11 at slow shelves driven gear 10 and fast gear between driven gear in the mode of the circumferencial direction transmission that can slide axially, coupling 11 can adopt existing synchronizer to realize, by shift fork, coupling 11 is slid axially to make it to engage with slow shelves driven gear 10 or fast shelves driven gear, and then the switching realized between slow shelves Transmitted chains and fast shelves Transmitted chains.
In the present embodiment, also comprise differential mechanism, differential mechanism comprises differential casing 8 and differential gear assembly 6, and differential casing 8 is monolithic construction; Differential gear assembly 6 belongs to existing structure, and comprise planetary pinion, left half axle gear and right axle shaft gear, do not repeat them here, overall structure is simply compact, and integrity is strong, is beneficial to guarantee installation precision, thus ensures transmission; Differential casing 8 adopts monolithic construction, adds and determines good coaxality man-hour, is thus easy to ensure coaxality in installation process, directly installs, and improves installation efficiency; Owing to being monolithic construction, thus Long-Time Service there will not be coaxality problem, there will not be eccentric wear between kinematic pair, is beneficial to the working life extending differential mechanism and whole retarder, reduces user cost; Owing to there is not eccentric wear, greatly reduce and use energy consumption, be beneficial to the distance travelled extending Motor Vehicle.
In the present embodiment, described case of transmission is integrally formed or be directly fixedly connected with the cavity be provided with for holding differential mechanism, and differential casing is set in rotation with case of transmission, and described differential casing 8 is provided with the installation via hole passed through for installing gear assembly; The case of transmission 14 of monolithic construction need be positioned at side and be provided with installation via hole, for installing planetary pinion and differential gear passes through and operates, but and via hole lubricant oil be installed pass through smoothly; The planet wheel shaft 7 of differential mechanism is through differential casing 8 and the fixing pin 5 passed through radially across planet wheel shaft 7 is fixed on differential casing 8, and the extension shaft part of the left half axle gear of differential mechanism and the extension shaft part of right axle shaft gear are rotatably assorted with differential casing 8 respectively.
In the present embodiment, the transmission of described driven shaft 9 is combined with power output gear 3, and differential mechanism comprises and is equipped with for the differential gear 4 with power output gear 3 engagement driving with differential casing 8 transmission; The integrally formed assembling shaft part be provided with for assembling differential gear 4 on differential casing 8, differential casing 8 forms the step that radial dimension is greater than assembling shaft part, differential gear 4 is coated at this assembling shaft part and the axial end being axially against step is fixedly assemblied in differential casing 8 so that the mode of axis and radial location is detachable, assembling shaft part forms in differential casing 8 formation and is similar to multidiameter shaft structure, thus annular end face is formed, after differential gear 4 is coated at this ladder shaft part, radial directly by the little shaft part location of multidiameter shaft, ensure coaxality preferably; Meanwhile, step end face must form axially locating to differential gear 4, and is secured by bolts in this step end face, has the effect of accomplishing coaxality simultaneously; Ensure that the coaxality between differential casing 8 and differential gear 4, and make this housing compact, lightweight, be suitable for electro-tricycle and use.
In the present embodiment, described power output gear 3 is one-body molded with driven shaft 9, power input gear 15 is one-body molded with power input shaft 1, power input gear 3 and power output gear 15 are constant mesh gear in this speed changer differential running, gear and axle link position stress larger, adopt the join strength that can ensure gear and axle with the integrated gear of axle, the load capacity of effective raising gear, on the other hand, the size restriction of power input gear 3 and power output gear 15 is less, therefore, power input gear 3 and power output gear 15 size programmable relatively little, be convenient to the one-body molded processing with axle.
In the present embodiment, also comprise the gearshift mechanism slid axially for controlling coupling 11, gearshift mechanism comprises sliding axially and is connected to case of transmission 14 and the shift shaft be arranged in parallel with driven shaft 9, shift shaft is fixed with the shift fork slid axially for promoting coupling 11, shift fork the inner to be sheathed on declutch shift shaft and to be fixedly connected with declutch shift shaft by a positioning screwn, shift fork outer end end embeds in coupling 11 or is fixedly connected with coupling 11, enable to promote coupling 11 vertically to slide, the thickness of shift fork reduces outward gradually from the inner, to form equi intensity cantilever structure, ensure that shift fork has higher structural strength.
In the present embodiment, return spring is provided with between shift fork and case of transmission 14 inwall, return spring can be and draws high spring or Compress Spring, and declutch shift shaft is not combined with fast shelves driven gear or slow shelves driven gear 10 by promoting coupling 11 under axial force effect.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (10)

1. an electric motor car Transaxle assembly, is characterized in that: comprise case of transmission, power input shaft, driving shaft and driven shaft; Described driving shaft is provided with slow shelves driving gear and fast shelves driving gear, and described driven shaft is provided with and the slow shelves driven gear of slow shelves driving gear engagement driving and the fast shelves driven gear with fast shelves driving gear engagement driving; Described power input shaft upper driving cooperation is provided with and keeps off soon driving gear or keeps off the power input gear of driving gear engagement driving slowly.
2. electric motor car Transaxle assembly according to claim 1, is characterized in that: described power input gear and fast shelves driving gear engagement driving.
3. electric motor car Transaxle assembly according to claim 1, is characterized in that: described power input shaft, driving shaft and driven shaft axis are parallel to each other.
4. electric motor car Transaxle assembly according to claim 1, it is characterized in that: described slow shelves driving gear and fast shelves driving gear all coordinate with driving shaft transmission, described slow shelves driven gear and fast shelves driven gear all rotatably coordinate with driven shaft, and described driven shaft is arranged with coupling at slow shelves driven gear and fast gear between driven gear in the mode of the circumferencial direction transmission that can slide axially.
5. electric motor car Transaxle assembly according to claim 1, is characterized in that: also comprise differential mechanism, and described differential mechanism comprises differential casing and differential gear assembly, and described differential casing is monolithic construction.
6. electric motor car Transaxle assembly according to claim 5, is characterized in that: described case of transmission is integrally formed or be directly fixedly connected with the cavity be provided with for holding differential mechanism, and described differential casing is set in rotation with case of transmission.
7. electric motor car Transaxle assembly according to claim 5, it is characterized in that: described driven shaft transmission is combined with power output gear, described differential mechanism comprises and being equipped with for the differential gear with power output gear engagement driving with differential casing transmission.
8. electric motor car Transaxle assembly according to claim 7, is characterized in that: described power output gear and driven shaft one-body molded, power input gear and power input shaft one-body molded.
9. electric motor car Transaxle assembly according to claim 4, it is characterized in that: also comprise the gearshift mechanism slid axially for controlling coupling, described gearshift mechanism comprises sliding axially and is connected to case of transmission and the shift shaft be arranged in parallel with driven shaft, and described shift shaft is fixed with the shift fork slid axially for promoting coupling.
10. electric motor car Transaxle assembly according to claim 9, is characterized in that: be provided with between described shift fork and case of transmission inwall as coupling return provides the return spring of elastic force.
CN201420531627.5U 2014-09-16 2014-09-16 Electric motor car Transaxle assembly Expired - Fee Related CN204175901U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420531627.5U CN204175901U (en) 2014-09-16 2014-09-16 Electric motor car Transaxle assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420531627.5U CN204175901U (en) 2014-09-16 2014-09-16 Electric motor car Transaxle assembly

Publications (1)

Publication Number Publication Date
CN204175901U true CN204175901U (en) 2015-02-25

Family

ID=52564712

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420531627.5U Expired - Fee Related CN204175901U (en) 2014-09-16 2014-09-16 Electric motor car Transaxle assembly

Country Status (1)

Country Link
CN (1) CN204175901U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150225

Termination date: 20170916