CN203035874U - Two-gear automatic transmission applied to pure electric vehicle - Google Patents

Two-gear automatic transmission applied to pure electric vehicle Download PDF

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Publication number
CN203035874U
CN203035874U CN 201320028583 CN201320028583U CN203035874U CN 203035874 U CN203035874 U CN 203035874U CN 201320028583 CN201320028583 CN 201320028583 CN 201320028583 U CN201320028583 U CN 201320028583U CN 203035874 U CN203035874 U CN 203035874U
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CN
China
Prior art keywords
tooth
retaining
driving
gear
countershaft
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CN 201320028583
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Chinese (zh)
Inventor
侯剑云
张学文
王占园
宋延大
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上海中科深江电动车辆有限公司
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Application filed by 上海中科深江电动车辆有限公司 filed Critical 上海中科深江电动车辆有限公司
Priority to CN 201320028583 priority Critical patent/CN203035874U/en
Application granted granted Critical
Publication of CN203035874U publication Critical patent/CN203035874U/en

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Abstract

The utility model relates to a two-gear automatic transmission applied to a pure electric vehicle, wherein a first gear driving gear and a second gear driving gear are arranged on a principal shaft, a first gear driven gear and a second gear driven gear are rotatably arranged on an auxiliary shaft and respectively meshed with the first gear driving gear and the second gear driving gear, a main reduction driving gear is arranged on the auxiliary shaft, the main reduction driven gear is arranged on a differential mechanism and meshed with the main reduction driving gear, a gear hub of a synchronizer is arranged on the auxiliary shaft, a gear sleeve of the synchronizer is arranged on the gear hub through a clamping mode, a three-conical-surface synchronized ring is arranged between the second gear driven gear and the gear sleeve, a two-conical-surface synchronized ring is arranged between the first gear driven gear and the gear sleeve, a shifting system is arranged in match with the gear sleeve to be used for driving the gear sleeve to move back and forth, and a parking system is arranged in match with the auxiliary shaft to be used for locking and unlocking the auxiliary shaft. The two-gear automatic transmission applied to the pure electric vehicle is ingenious in design of automatic gearboxes, compact in structure, reliable in performance, capable of saving cost, convenient to disassemble and repair, and suitable for large-scaled popularization and application.

Description

Be applied to the two-shift automatic speed variator of pure electric automobile

Technical field

The utility model relates to the vehicle drive system technical field, particularly is applied to the transmission system technical field of pure electric automobile, specifically refers to a kind of two-shift automatic speed variator that is applied to pure electric automobile.

Background technique

Reduce cost when enhancing product performance is that each manufacturing industry is pursued unchangeably always.The automatic transmission that is used for electric vehicle is strict always to gearshift functional performance, Parking performance, the gearshift time is not more few more good, should avoid design redundant, the assembling of parking system is not that level of integration is more high more good, should take into account dismantled and assembled property and maintainalbility.

Therefore, expectation provides a kind of automatic transmission that is applied to pure electric automobile, and it is simple for structure, reliable performance, and cost savings are convenient to dismounting and maintenance.

The model utility content

The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, a kind of automatic transmission that is applied to pure electric automobile is provided, this automatic transmission design that is applied to pure electric automobile is ingenious, simple for structure, reliable performance, cost savings are convenient to dismounting and maintenance, are suitable for large-scale promotion application.

To achieve these goals, the automatic transmission that is applied to pure electric automobile of the present utility model, be characterized in, comprise main shaft, one retaining driving tooth, two retaining driving tooths, countershaft, one retaining driven tooth, two retaining driven tooth, main deceleration driving tooth, synchronizer, main deceleration passive tooth, differential mechanism, parking system, shifting system, three conical surface synchronizing ring (being called for short three conical rings) and bipyramid face synchronizing ring (being called for short the bipyramid ring), a described retaining driving tooth and described two retaining driving tooths are installed on the described main shaft, rotatable being arranged on of a described retaining driven tooth and described two retaining driven tooth also meshed a described retaining driving tooth and described two retaining driving tooths respectively on the described countershaft, described main deceleration driving tooth is installed on the described countershaft, described main deceleration passive tooth is installed on the described differential mechanism and meshes described main deceleration driving tooth, the tooth hub of described synchronizer is installed on the described countershaft, the tooth cover of described synchronizer is fastened on the described tooth hub, described three conical surface synchronizing ring are installed between described two retaining driven tooth and the described tooth cover, described bipyramid face synchronizing ring is installed between a described retaining driven tooth and the described tooth cover, described shifting system and described tooth cover are equipped with for driving described tooth cover and move around, and described parking system and described countershaft are equipped with for locking and the described countershaft of release.

Preferably, a described retaining driving tooth, described two retaining driving tooths and described integrated spindle axis are shaped, and perhaps described main deceleration driving tooth and described countershaft are integrally formed.

Preferably, a described retaining driven tooth and described two retaining driven tooth are arranged on the described countershaft by needle roller is rotatable respectively.

Preferably, described tooth hub is installed on the described countershaft by spline, and described tooth cover is fastened on the described spline.

Preferably, described parking system comprises ratchet, ratchet and P retaining motor, and described ratchet is installed on the described countershaft, and the output shaft of described P retaining motor connects described ratchet and is used for driving described ratchet engagement or breaks away from described ratchet.

Preferably, described shifting system comprises shift fork and shift motor, and described shift fork and described tooth cover are equipped with, and the output shaft of described shift motor connects described shift fork.

Preferably, the described automatic transmission that is applied to pure electric automobile also comprises housing, a described retaining driving tooth, described two retaining driving tooths, a described retaining driven tooth, described two retaining driven tooth, described main deceleration driving tooth, described synchronizer, described main deceleration passive tooth and described differential mechanism all are arranged in described housing, described main shaft, the output shaft of described countershaft and described differential mechanism is rotatable to be arranged in the described housing, described parking system detachably is installed on the described housing and with the described countershaft that partly wears out described housing and is equipped with, and described shifting system wears described housing and is equipped with described tooth cover.

More preferably, described parking system comprises ratchet, ratchet, P retaining motor and P door, thereby described P door detachably is installed in and forms inner receiving cavity on the described housing between described P door and described housing, described ratchet and described ratchet are arranged in described inner receiving cavity, described ratchet is installed on the described countershaft, and the output shaft of described P retaining motor wears described P door and connects described ratchet and is used for driving described ratchet engagement or breaks away from described ratchet.

More preferably, described shifting system comprises shift fork and shift motor, and described shift fork is arranged in described housing and is equipped with described tooth cover, and the output shaft of described shift motor wears described housing and connects described shift fork.

More preferably, described housing comprises interconnective front case and rear case, and the output shaft of described main shaft, described countershaft and described differential mechanism is rotatable being arranged in described front case and the described rear case all.

The beneficial effects of the utility model specifically are:

1, described three conical surface synchronizing ring that are applied to the automatic transmission of pure electric automobile of the present utility model are installed between described two retaining driven tooth and the described tooth cover, described bipyramid face synchronizing ring is installed between a described retaining driven tooth and the described tooth cover, design ingenious, simple for structure, reliable performance, cost savings are convenient to dismounting and maintenance, are suitable for large-scale promotion application.

2, a described retaining driving tooth, described two retaining driving tooths and the described integrated spindle axis that is applied to the automatic transmission of pure electric automobile of the present utility model is shaped, perhaps described main deceleration driving tooth and described countershaft are integrally formed, under the time of satisfying maximum gearshift, saved cost, therefore design ingenious, simple for structure, reliable performance, cost savings, be convenient to dismounting and maintenance, be suitable for large-scale promotion application.

3, the described parking system that is applied to the automatic transmission of pure electric automobile of the present utility model detachably is installed on the described housing, design ingenious, simple for structure, reliable performance, cost savings are convenient to dismounting and maintenance, are suitable for large-scale promotion application.

Description of drawings

Fig. 1 is the structural representation of a specific embodiment of the present utility model.

Embodiment

In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.Should be understood that embodiment only is for example and non-limiting.

See also shown in Figure 1, the automatic transmission that is applied to pure electric automobile of the present utility model comprises main shaft 1, one retaining driving tooth 21, two retaining driving tooths 22, countershaft 2, one retaining driven tooth 3, two retaining driven tooth 4, main deceleration driving tooth 23, synchronizer 5, main deceleration passive tooth 6, differential mechanism 7, parking system 9, shifting system 8, three conical surface synchronizing ring 13 and bipyramid face synchronizing ring 12, a described retaining driving tooth 21 and described two retaining driving tooths 22 are installed on the described main shaft 1, a described retaining driven tooth 3 and described two retaining driven tooth, 4 rotatable being arranged on are also meshed a described retaining driving tooth 21 and described two retaining driving tooths 22 respectively on the described countershaft 2, described main deceleration driving tooth 23 is installed on the described countershaft 2, described main deceleration passive tooth 6 is installed on the described differential mechanism 7 and meshes described main deceleration driving tooth 23, the tooth hub (not shown) of described synchronizer 5 is installed on the described countershaft 2, the tooth cover 14 of described synchronizer 5 is fastened on the described tooth hub, described three conical surface synchronizing ring 13 are installed between described two retaining driven tooth 4 and the described tooth cover 14, described bipyramid face synchronizing ring 12 is installed between a described retaining driven tooth 3 and the described tooth cover 14, described shifting system 8 is equipped with for driving described tooth cover 14 with described tooth cover 14 and moves around, and described parking system 9 is equipped with for locking and the described countershaft 2 of release with described countershaft 2.

In order to reduce the part number of packages, improve part strength and reduce assembly error, preferably, a described retaining driving tooth 21, described two retaining driving tooths 22 and described main shaft 1 are integrally formed, and perhaps described main deceleration driving tooth 23 and described countershaft 2 are integrally formed.In specific embodiment of the utility model, a described retaining driving tooth 21, described two retaining driving tooths 22 and described main shafts 1 are integrally formed, and described main deceleration driving tooth 23 and described countershaft 2 are integrally formed.

A described retaining driven tooth 3 and described two retaining driven tooth, 4 rotatable being arranged on the described countershaft 2 can be adopted any suitable structure, see also shown in Figure 1, in specific embodiment of the utility model, a described retaining driven tooth 3 and described two retaining driven tooth 4 are arranged on the described countershaft 2 by the needle roller (not shown) is rotatable respectively.

The tooth hub (not shown) of described synchronizer 5 is installed on the described countershaft 2, the tooth cover 14 of described synchronizer 5 is fastened on the described tooth hub, can adopt any suitable structure, in specific embodiment of the utility model, described tooth hub is installed on the described countershaft 2 by spline, and described tooth cover 14 is fastened on the described spline.

Described parking system 9 can have any suitable structure, see also shown in Figure 1, in specific embodiment of the utility model, described parking system 9 comprises ratchet 15, ratchet (not shown) and P retaining motor 24, described ratchet 15 is installed on the described countershaft 2, and the output shaft of described P retaining motor 24 connects described ratchet and is used for driving described ratchet engagement or breaks away from described ratchet 15.

Described shifting system 8 can have any suitable structure, see also shown in Figure 1, in specific embodiment of the utility model, described shifting system 8 comprises shift fork (not shown) and shift motor 25, described shift fork and described tooth cover 14 are equipped with, and the output shaft of described shift motor 25 connects described shift fork.Shift fork can move around by the tooth cover 14 of control synchro 5 under the driving of shift motor 25, and tooth cover 14 can rest on a gear respectively, three positions in two gears and neutral position.

For the ease of dismounting, see also shown in Figure 1, in specific embodiment of the utility model, the described automatic transmission that is applied to pure electric automobile also comprises housing 30, a described retaining driving tooth 21, described two retaining driving tooths 22, a described retaining driven tooth 3, described two retaining driven tooth 4, described main deceleration driving tooth 23, described synchronizer 5, described main deceleration passive tooth 6 and described differential mechanism 7 all are arranged in described housing 30, described main shaft 1, the output shaft of described countershaft 2 and described differential mechanism 7 is rotatable to be arranged in the described housing 30, described parking system 9 detachably is installed on the described housing 30 and with the described countershaft 2 that partly wears out described housing 30 and is equipped with, and described shifting system 8 wears described housing 30 and is equipped with described tooth cover 14.

Dismounting and maintenance for the ease of described parking system 9, see also shown in Figure 1, in specific embodiment of the utility model, described parking system 9 also comprises P door 16 except above-mentioned ratchet 15, ratchet and P retaining motor 24, thereby described P door 16 detachably is installed in and forms inner receiving cavity on the described housing 30 between described P door 16 and described housing 30, described ratchet 15 and described ratchet are arranged in described inner receiving cavity, described P retaining motor 24 is positioned at outside the described P door 16, and the output shaft of described P retaining motor 24 wears described P door 16.

Because the existence of housing 30, therefore, see also shown in Figure 1ly, in specific embodiment of the utility model, described shift motor 25 is positioned at outside the described housing 30, and the output shaft of described shift motor 25 wears described housing 30.

Described housing 30 can have any suitable structure, preferably, described housing 30 comprises interconnective front case 10 and rear case 11, and the output shaft of described main shaft 1, described countershaft 2 and described differential mechanism 7 is rotatable being arranged in described front case 10 and the described rear case 11 all.See also shown in Figure 1ly, in specific embodiment of the utility model, described P door 16 is for example by being bolted to the outside of rear case 11.

Working principle of the present utility model is summarized as follows:

When 1, starting to walk, speed changer is under the control of gearbox controller, the shift motor 25 that starts in the shifting system 8 makes shift motor 25 shift forks to a retaining direction motion, thereby bipyramid ring 12 and a retaining driven tooth 3 are tightly touched, it is 14 synchronous that the tooth of a retaining driven tooth 3 rotating speeds and synchronizer 5 overlaps, and hangs up a retaining.The kinetic current of this moment is shown in the direction of arrow: the tooth hub → countershaft 2 → master of main shaft 1 → one retaining driven tooth 3 → bipyramid ring 12 → synchronizer 5 subtracts passive tooth 6 → differential mechanism 7.In like manner, when hanging up two retainings, kinetic current flows to three conical rings 13 and finally flows to differential mechanism 7 through two retaining driven tooth 4.

When 2, shifting gears, shift fork pushes the neutral position with tooth cover 14 from one/two retaining earlier, and at this moment the bipyramid ring 12, three conical rings 13 are not fitted with the tooth hub, it is 14 asynchronous that the teeth of one retaining driven tooth 3, two retaining driven tooth 4 rotating speeds and synchronizers 5 overlap, and power passes less than on the countershaft 2, thus power interruption.Shift fork pushes two/one gears with the tooth cover 14 of synchronizer 5 again, hangs up two/one retainings, reaches the gearshift purpose.

3, during parking lock, start the P retaining motor 24 of parking system 9, P retaining motor 24 drives pinning ratchet 15 down, thereby pins countershaft 2, speed changer locking.

4, during the Parking release, P retaining motor 24 is decontroled ratchets 15, ratchet 15 normal rotation.

When 5, parking system 9 is dismantled, remove the bolt that P door 16 links to each other with rear case 11, the P that then links to each other with P door 16 keeps off motor 24, and ratchet etc. can remove together, and ratchet 15 still links to each other with countershaft 2.

In the utility model, a retaining driving tooth 21, two retaining driving tooths 22 are machined in one with main shaft 1, and main deceleration driving tooth 23 is machined in one with countershaft 2, reduces the part number of packages, improves part strength and reduces assembly error.Synchronizer 5 adopts the form of bipyramid rings 12 and three conical rings 13, has saved cost having satisfied under functional requirement and the situation of gearshift time.Parking system 9 can separate with housing 30, and does not influence the gearshift performance of speed changer, and simultaneously electric motor car is travelled in the ramp more safe and reliable.

To sum up, the automatic transmission that is applied to pure electric automobile of the present utility model designs ingenious, simple for structure, reliable performance, and cost savings are convenient to dismounting and maintenance, are suitable for large-scale promotion application.

In this specification, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.

Claims (10)

1. automatic transmission that is applied to pure electric automobile, it is characterized in that, comprise main shaft, one retaining driving tooth, two retaining driving tooths, countershaft, one retaining driven tooth, two retaining driven tooth, main deceleration driving tooth, synchronizer, main deceleration passive tooth, differential mechanism, parking system, shifting system, three conical surface synchronizing ring and bipyramid face synchronizing ring, a described retaining driving tooth and described two retaining driving tooths are installed on the described main shaft, rotatable being arranged on of a described retaining driven tooth and described two retaining driven tooth also meshed a described retaining driving tooth and described two retaining driving tooths respectively on the described countershaft, described main deceleration driving tooth is installed on the described countershaft, described main deceleration passive tooth is installed on the described differential mechanism and meshes described main deceleration driving tooth, the tooth hub of described synchronizer is installed on the described countershaft, the tooth cover of described synchronizer is fastened on the described tooth hub, described three conical surface synchronizing ring are installed between described two retaining driven tooth and the described tooth cover, described bipyramid face synchronizing ring is installed between a described retaining driven tooth and the described tooth cover, described shifting system and described tooth cover are equipped with for driving described tooth cover and move around, and described parking system and described countershaft are equipped with for locking and the described countershaft of release.
2. the automatic transmission that is applied to pure electric automobile according to claim 1 is characterized in that, a described retaining driving tooth, described two retaining driving tooths and described integrated spindle axis are shaped, and perhaps described main deceleration driving tooth and described countershaft are integrally formed.
3. the automatic transmission that is applied to pure electric automobile according to claim 1 is characterized in that, a described retaining driven tooth and described two retaining driven tooth are arranged on the described countershaft by needle roller is rotatable respectively.
4. the automatic transmission that is applied to pure electric automobile according to claim 1 is characterized in that, described tooth hub is installed on the described countershaft by spline, and described tooth cover is fastened on the described spline.
5. the automatic transmission that is applied to pure electric automobile according to claim 1, it is characterized in that, described parking system comprises ratchet, ratchet and P retaining motor, described ratchet is installed on the described countershaft, and the output shaft of described P retaining motor connects described ratchet and is used for driving described ratchet engagement or breaks away from described ratchet.
6. the automatic transmission that is applied to pure electric automobile according to claim 1 is characterized in that, described shifting system comprises shift fork and shift motor, and described shift fork and described tooth cover are equipped with, and the output shaft of described shift motor connects described shift fork.
7. the automatic transmission that is applied to pure electric automobile according to claim 1, it is characterized in that, the described automatic transmission that is applied to pure electric automobile also comprises housing, a described retaining driving tooth, described two retaining driving tooths, a described retaining driven tooth, described two retaining driven tooth, described main deceleration driving tooth, described synchronizer, described main deceleration passive tooth and described differential mechanism all are arranged in described housing, described main shaft, the output shaft of described countershaft and described differential mechanism is rotatable to be arranged in the described housing, described parking system detachably is installed on the described housing and with the described countershaft that partly wears out described housing and is equipped with, and described shifting system wears described housing and is equipped with described tooth cover.
8. the automatic transmission that is applied to pure electric automobile according to claim 7, it is characterized in that, described parking system comprises ratchet, ratchet, P retaining motor and P door, thereby described P door detachably is installed in and forms inner receiving cavity on the described housing between described P door and described housing, described ratchet and described ratchet are arranged in described inner receiving cavity, described ratchet is installed on the described countershaft, and the output shaft of described P retaining motor wears described P door and connects described ratchet and is used for driving described ratchet engagement or breaks away from described ratchet.
9. the automatic transmission that is applied to pure electric automobile according to claim 7, it is characterized in that, described shifting system comprises shift fork and shift motor, described shift fork is arranged in described housing and is equipped with described tooth cover, and the output shaft of described shift motor wears described housing and connects described shift fork.
10. the automatic transmission that is applied to pure electric automobile according to claim 7, it is characterized in that, described housing comprises interconnective front case and rear case, and the output shaft of described main shaft, described countershaft and described differential mechanism is rotatable being arranged in described front case and the described rear case all.
CN 201320028583 2013-01-18 2013-01-18 Two-gear automatic transmission applied to pure electric vehicle CN203035874U (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307243A (en) * 2013-07-11 2013-09-18 肖福禄 Dual-power-input gearbox
CN103587412A (en) * 2013-12-03 2014-02-19 聊城大学 Automobile double-mode pure power-driven system
CN104089005A (en) * 2014-07-16 2014-10-08 重庆市佳南工贸有限公司 Device of electric vehicle gearbox clutchless synchronizer and capable of achieving sliding shifting and reversing
CN104373561A (en) * 2014-11-14 2015-02-25 徐州天擎机电有限公司 Special gearbox for electric tricycle
CN105041989A (en) * 2015-09-10 2015-11-11 青州圣荣源齿轮有限公司 Double-shift automatic gearbox of electric automobile
CN105065662A (en) * 2015-07-15 2015-11-18 徐州南普机电科技有限公司 Gear shifting device of two-gear transmission of electric vehicle
CN105065654A (en) * 2015-07-15 2015-11-18 徐州南普机电科技有限公司 Two-gear gearbox of electric vehicle
CN105257815A (en) * 2015-11-09 2016-01-20 中投仙能科技(苏州)有限公司 Gearbox adopting electromagnetic valve and stirring piece type gear shifting manner
CN105864367A (en) * 2016-05-25 2016-08-17 湖南江麓容大车辆传动股份有限公司 Automatic transmission for electric vehicle and vehicle
CN107985045A (en) * 2017-12-05 2018-05-04 武汉理工大学 A kind of integrated electric drives power assembly system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307243A (en) * 2013-07-11 2013-09-18 肖福禄 Dual-power-input gearbox
CN103587412A (en) * 2013-12-03 2014-02-19 聊城大学 Automobile double-mode pure power-driven system
CN103587412B (en) * 2013-12-03 2016-05-11 燕山大学 A kind of automobile-used double mode pure power drive system
CN104089005A (en) * 2014-07-16 2014-10-08 重庆市佳南工贸有限公司 Device of electric vehicle gearbox clutchless synchronizer and capable of achieving sliding shifting and reversing
CN104089005B (en) * 2014-07-16 2018-03-23 重庆市佳南工贸有限公司 The device of gearshift reverse gear is slided in electric vehicle gear box no-clutch synchronizer and realization
CN104373561A (en) * 2014-11-14 2015-02-25 徐州天擎机电有限公司 Special gearbox for electric tricycle
CN105065662A (en) * 2015-07-15 2015-11-18 徐州南普机电科技有限公司 Gear shifting device of two-gear transmission of electric vehicle
CN105065654A (en) * 2015-07-15 2015-11-18 徐州南普机电科技有限公司 Two-gear gearbox of electric vehicle
CN105065654B (en) * 2015-07-15 2018-06-22 徐州南普机电科技有限公司 A kind of electric vehicle two speed transmission
CN105041989A (en) * 2015-09-10 2015-11-11 青州圣荣源齿轮有限公司 Double-shift automatic gearbox of electric automobile
CN105257815A (en) * 2015-11-09 2016-01-20 中投仙能科技(苏州)有限公司 Gearbox adopting electromagnetic valve and stirring piece type gear shifting manner
CN105864367A (en) * 2016-05-25 2016-08-17 湖南江麓容大车辆传动股份有限公司 Automatic transmission for electric vehicle and vehicle
CN107985045A (en) * 2017-12-05 2018-05-04 武汉理工大学 A kind of integrated electric drives power assembly system

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