CN109334421A - A kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake - Google Patents
A kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake Download PDFInfo
- Publication number
- CN109334421A CN109334421A CN201811430109.3A CN201811430109A CN109334421A CN 109334421 A CN109334421 A CN 109334421A CN 201811430109 A CN201811430109 A CN 201811430109A CN 109334421 A CN109334421 A CN 109334421A
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- China
- Prior art keywords
- gear
- spiral bevel
- drive axle
- active
- roller gear
- 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.)
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- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake, including roller gear group, spiral bevel gear pair, differential mechanism and the wheel for being arranged in drive axle two sides, its main feature is that, the motor of the drive axle is connected to active roller gear by splined shaft on rear side of vehicle bridge, vehicle bridge includes two groups of roller gear groups, first group of Tooth Number of Gear is equal, and second group of Tooth Number of Gear differs；Two groups of roller gear groups carry out selection transmission by slidably engaging set, and finally only one group of roller gear is connected on differential mechanism by spiral bevel gear, and pass through differential mechanism to two sides wheel output power；Motor is directly connected with drive axle, while bigger in low-grade location speed per hour, and automobile is in starting state, it is possible to provide compared with large driving force, in high tap position, speed is smaller, and higher speed may be implemented；Motor postposition is directly connected to drive axle, improves transmission efficiency.
Description
Technical field:
The present invention relates to pure electric vehicle heavy truck technical field, specifically a kind of motor postposition double speed with centre brake
Compare drive axle of heavy truck.
Background technique:
The heavy truck of traditional pure electric vehicle is all motor by transmission shaft and then imparts power to drive axle, and wherein transmission shaft accounts for
With larger weight, vehicle self weight is affected；Traditional pure electric vehicle heavy truck Motor torque and the range of speeds are narrow simultaneously, pass
Dynamic system high efficiency area is smaller, and structure is not compact enough, and transmission efficiency is not high enough, will be greatly reduced the course continuation mileage of vehicle.
Summary of the invention:
The purpose of the present invention is overcoming the shortcomings of above-mentioned prior art, and provide a kind of motor postposition double speed with centre brake
Compare drive axle of heavy truck；Mainly solve that existing pure electric vehicle heavy truck is low from great, transmission efficiency and structure is not compact asks
Topic.
The technical scheme is that a kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake, packet
Roller gear group, spiral bevel gear pair, differential mechanism and the wheel for being arranged in drive axle two sides are included, is characterized in that institute
The roller gear group stated is two groups, and respectively the first active roller gear and the engagement of the first driven cylindrical gear, the number of teeth is identical, tooth
Number is Z1, the second active Cylinder Gear and the engagement of the second driven cylindrical gear, number of teeth difference, the second active Tooth Number of Gear are Z2,
The second driven cylindrical gear number of teeth is Z3, and Z2< Z3；Splined shaft and the first active roller gear, the second active roller gear are logical
Spline connection is crossed, while being supported with active roller gear bearing and being able to be rotated, motor is located on rear side of drive axle and flower
Key axis connection, motor deliver power to two groups of roller gear groups by splined shaft；First driven cylindrical gear and second driven
Roller gear all have can with slidably engage the external splines that engage of set, slidably engage set with active spiral bevel gear and pass through internal spline
It is fixed together, it is opposite to slide, and rotated under the support of spiral bevel gear bearing；It slidably engages and covers in active screw conic
It is slided on gear, has different speed when sliding into the second driven cylindrical gear and the first driven cylindrical gear respectively, changed
Gear；The spiral bevel gear pair is meshed with driven spiral bevel gear by active spiral bevel gear and is formed, driven screw conic tooth
Wheel is connect with differential mechanism, and differential mechanism passes through half axis connection two sides wheel under the support of differential bearing；Two groups of roller gear groups
Spiral bevel gear pair is transferred power to, spiral bevel gear adjutant's power is changed into perpendicular to original motor power direction of transfer, leads to
Differential mechanism is crossed to start to two sides wheel output power.
Further, the active spiral bevel gear top is fixedly connected with centre brake, and centre brake has
Brake cable, brake cable are connect with driver's cabin parking brake handle, form parking braking.
A kind of motor postposition Dual-speed-ratio drive axle of heavy truck and prior art with centre brake of the present invention
Compared to substantive distinguishing features outstanding and marked improvement, 1, motor be directly connected with drive axle, while the speed ratio in low-grade location
Larger, automobile is in starting state, it is possible to provide compared with large driving force, in high tap position, speed is smaller, and higher vehicle may be implemented
Speed；2, motor postposition is directly connected to drive axle, improves transmission efficiency；3, pure electric vehicle heavy truck saves biography in arrangement
Moving axis vacates more space layout batteries, while improving integrated level, improves transmission efficiency, is increased in more continuations of the journey
Journey.
Detailed description of the invention:
Fig. 1 is structural schematic diagram of the invention.
Drawing explanation:
1-motor, 2-splined shafts, the 3-the first active roller gear, the 4-the second active roller gear, 5-active roller gears
Bearing, the 6-the second driven cylindrical gear, the 7-the first driven cylindrical gear, 8-spiral bevel gear bearings, 9-active screw conics
Gear, 10-driven spiral bevel gears, 11-differential mechanisms, 12-differential bearings, 13-centre brakes, 14-brakes are drawn
Line, 15-semiaxis, 16-wheels, 17-slidably engage set.
Specific embodiment:
For a better understanding and implementation, providing specific embodiment with reference to the accompanying drawing, the present invention will be described in detail；Illustrated embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention.
Motor 1 is connect by embodiment 1 referring to Fig. 1 with splined shaft 2, splined shaft 2 and the first active roller gear 3, second
Active roller gear 4 is connected by spline, while being supported with active roller gear bearing 5 and being able to be rotated；First from
Dynamic roller gear 7 is engaged with the first active roller gear 3, and the number of teeth is identical, number of teeth Z1；Second driven cylindrical gear 6 and second
Active roller gear 4 engages, and the number of teeth is different, and 6 number of teeth of the second driven cylindrical gear is Z3, 4 number of teeth of the second active roller gear is
Z2,Z2< Z3；First driven cylindrical gear 7 all has with the second driven cylindrical gear 6 to cover the 17 outer flowers engaged with slidably engaging
Key slidably engages set 17 and is fixed together with active spiral bevel gear 9 by internal spline, opposite can slide, and in screw conic tooth
It is rotated under the support of wheel bearing 8；When slidably engaging set 17 in conjunction with the spline of the first driven cylindrical gear 7, power is logical
The transmitting of the first driven cylindrical gear 7 is crossed, the second driven cylindrical gear 6 is in idling conditions, does not transmit power, because of the first active
Roller gear 3 is identical as 7 number of teeth of the first driven cylindrical gear, and the revolving speed of motor 1 is constant by revolving speed after this group of gear at this time；When
After the spline disengagement for slidably engaging set 17 and the first driven cylindrical gear 7, when in conjunction with the spline of the second driven cylindrical gear 6,
First group of roller gear is in idling conditions, does not transmit power；Power is transmitted by the second driven cylindrical gear 6, because of Z2<
Z3, after the revolving speed of motor 1 is by this group of gear, revolving speed decline, while torque is promoted；9 top of active spiral bevel gear simultaneously with
Centre brake 13 is fixedly connected, and centre brake 13 has brake cable 14, can be connect with driver's cabin parking brake handle, is formed
The function of parking braking；Active spiral bevel gear 9 is meshed to form spiral bevel gear pair with driven spiral bevel gear 10, simultaneously will
Motive power direction of transfer changes 90 °, transmits to 16 direction of two sides wheel；Driven spiral bevel gear 10 is connect with differential mechanism 11, poor
Fast device 11 is transmitted on two sides wheel 16 under the support of differential bearing 12 by semiaxis 15；17 splines had been covered both when having slidably engaged
It is not combined with the spline of the second driven cylindrical gear 6, when also not combined with the spline of the first driven cylindrical gear 7, motor 1
Power and revolving speed can not be transmitted to active spiral bevel gear 9, active spiral bevel gear 9 does not rotate, i.e., both ends wheel 16 is not at this time
Rotation；Form a kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake of the invention.
A kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake of the invention is engaged in different gears
Tool is there are two gear under state, distinguishes selection by slidably engaging set between two groups of roller gear groups and is finally driven,
Slidably engage set it is in an intermediate position when, any group of roller gear engagement of getting along well, power cannot be transferred to from roller gear
Spiral bevel gear cannot also be transferred to wheel two sides；Set is slidably engaged when being connected with first group of roller gear, in high-grade
Position, after motor is by first group of roller gear, motor speed is constant；Set is slidably engaged when being connected with second group of roller gear,
In low-grade location, after motor is by second group of roller gear, motor speed is reduced；I.e. two groups of roller gears are by slidably engaging set
The carry out power transmission of selectivity；If first group of Tooth Number of Gear is Z1, the active Cylinder Gear gear teeth in second group of roller gear
Number is Z2, the driven cylindrical gear number of teeth is Z3,Z2< Z3；When slidably engage set engaged with first group of gear when, power pass through first
Group roller gear transmitting, second group of roller gear are in idling conditions, do not transmit power, and motor speed passes through this group of gear at this time
Revolving speed is constant afterwards；After slidably engaging set and first group is out of gear, when being engaged with second group of roller gear, first group of Cylinder Gear
Wheel is in idling conditions, does not transmit power；Power is by second group of roller gear transmitting, and motor speed passes through this group of gear
Afterwards, revolving speed declines, while torque is promoted.
Claims (2)
1. a kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake, including roller gear group, screw conic tooth
Wheel set, differential mechanism (11) and the wheel (16) for being arranged in drive axle two sides, it is characterised in that: the roller gear group is two
The engagement of group, respectively the first active roller gear (3) and the first driven cylindrical gear (7), the number of teeth is identical, number of teeth Z1, second
Active Cylinder Gear (4) and the second driven cylindrical gear (6) engagement, the number of teeth is different, and second active roller gear (4) number of teeth is Z2,
Second driven cylindrical gear (6) number of teeth is Z3, and Z2< Z3；Splined shaft (2) and the first active roller gear (3), the second active circle
Stud wheel (4) is connected by spline, while being supported with active roller gear bearing (5) and being able to be rotated, motor (1) position
It is connect on rear side of drive axle with splined shaft (2), motor (1) delivers power to two groups of roller gear groups by splined shaft (2)；The
One driven cylindrical gear (7) and the second driven cylindrical gear (6) are all with can be with the external splines that slidably engages set (17) and engage, cunning
Dynamic engaging sleeve (17) are fixed together with active spiral bevel gear (9) by internal spline, opposite to slide, and in spiral bevel gear axis
It holds and is rotated under the support of (8)；It slidably engages set (17) to slide on active spiral bevel gear (9), it is driven to slide into second
There is different speed respectively when roller gear (6) and the first driven cylindrical gear (7), shifts gears；The spiral bevel gear
Pair is meshed with driven spiral bevel gear (10) by active spiral bevel gear (9) and is formed, driven spiral bevel gear (10) and differential
Device (11) connection, differential mechanism (11) pass through semiaxis (15) connection two sides wheel (16) under the support of differential bearing (12)；Two
Group roller gear group transfers power to spiral bevel gear pair, and spiral bevel gear adjutant's power is changed into perpendicular to original motor power
Direction of transfer is started by differential mechanism (11) to two sides wheel (16) output power.
2. a kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake according to claim 1, special
Sign is that active spiral bevel gear (9) top is fixedly connected with centre brake (13), and centre brake (13) has
Brake cable (14), brake cable (14) are connect with driver's cabin parking brake handle, form parking braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430109.3A CN109334421B (en) | 2018-11-28 | 2018-11-28 | Motor rear-mounted double-speed specific gravity type truck drive axle with central brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430109.3A CN109334421B (en) | 2018-11-28 | 2018-11-28 | Motor rear-mounted double-speed specific gravity type truck drive axle with central brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109334421A true CN109334421A (en) | 2019-02-15 |
| CN109334421B CN109334421B (en) | 2024-04-05 |
Family
ID=65318370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811430109.3A Active CN109334421B (en) | 2018-11-28 | 2018-11-28 | Motor rear-mounted double-speed specific gravity type truck drive axle with central brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109334421B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315953A (en) * | 2019-07-09 | 2019-10-11 | 山东蓬翔汽车有限公司 | A kind of Dual-speed-ratio pure electric vehicle truck driving axle with power takeoff |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1562167A1 (en) * | 1988-02-01 | 1990-05-07 | Минский автомобильный завод | Two-axle driven truck for wheeled vehicle |
| US20080300101A1 (en) * | 2007-05-29 | 2008-12-04 | Peter Jarzyna | Compact power transfer unit for transaxle applications |
| CN107344488A (en) * | 2016-05-06 | 2017-11-14 | 陕西汉德车桥有限公司 | Pure two grades of transaxles of electric commercial vehicle and pure electric commercial vehicle |
| CN108859704A (en) * | 2018-06-28 | 2018-11-23 | 山东蓬翔汽车有限公司 | A kind of motor postposition pure electric vehicle drive axle of heavy truck |
| CN209290150U (en) * | 2018-11-28 | 2019-08-23 | 山东蓬翔汽车有限公司 | A kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake |
-
2018
- 2018-11-28 CN CN201811430109.3A patent/CN109334421B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1562167A1 (en) * | 1988-02-01 | 1990-05-07 | Минский автомобильный завод | Two-axle driven truck for wheeled vehicle |
| US20080300101A1 (en) * | 2007-05-29 | 2008-12-04 | Peter Jarzyna | Compact power transfer unit for transaxle applications |
| CN107344488A (en) * | 2016-05-06 | 2017-11-14 | 陕西汉德车桥有限公司 | Pure two grades of transaxles of electric commercial vehicle and pure electric commercial vehicle |
| CN108859704A (en) * | 2018-06-28 | 2018-11-23 | 山东蓬翔汽车有限公司 | A kind of motor postposition pure electric vehicle drive axle of heavy truck |
| CN209290150U (en) * | 2018-11-28 | 2019-08-23 | 山东蓬翔汽车有限公司 | A kind of motor postposition Dual-speed-ratio drive axle of heavy truck with centre brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315953A (en) * | 2019-07-09 | 2019-10-11 | 山东蓬翔汽车有限公司 | A kind of Dual-speed-ratio pure electric vehicle truck driving axle with power takeoff |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109334421B (en) | 2024-04-05 |
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