CN109334421B - Motor rear-mounted double-speed specific gravity type truck drive axle with central brake - Google Patents
Motor rear-mounted double-speed specific gravity type truck drive axle with central brake Download PDFInfo
- Publication number
- CN109334421B CN109334421B CN201811430109.3A CN201811430109A CN109334421B CN 109334421 B CN109334421 B CN 109334421B CN 201811430109 A CN201811430109 A CN 201811430109A CN 109334421 B CN109334421 B CN 109334421B
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- spiral bevel
- cylindrical gear
- gear
- driving
- bevel gear
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- 230000005484 gravity Effects 0.000 title claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Classifications
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- 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 motor rear-mounted double-speed gravity truck driving axle with a central brake, which comprises a cylindrical gear set, a spiral bevel gear pair, a differential mechanism and wheels arranged on two sides of the driving axle, and is characterized in that the motor of the driving axle is connected to a driving cylindrical gear from the rear side of the axle through a spline shaft, the axle comprises two groups of cylindrical gear sets, the number of teeth of the first group of cylindrical gear sets is equal, and the number of teeth of the second group of cylindrical gear sets is unequal; the two groups of cylindrical gear sets are selectively driven through the sliding meshing sleeve, and finally only one group of cylindrical gears is connected to the differential mechanism through the spiral bevel gears and outputs power to wheels on two sides through the differential mechanism; the motor is directly connected with the drive axle, and the speed is higher in a low gear, so that the automobile is in a starting state, a larger driving force can be provided, and the speed is smaller in a high gear, so that a higher speed can be realized; the motor is arranged at the rear end and is directly connected with the driving axle, so that the transmission efficiency is improved.
Description
Technical Field
The invention relates to the technical field of pure electric heavy trucks, in particular to a motor rear-mounted double-speed specific gravity type truck drive axle with a central brake.
Background
The traditional pure electric heavy trucks are all characterized in that a motor transmits power to a drive axle through a transmission shaft, wherein the transmission shaft occupies large weight, and the dead weight of the whole truck is influenced; meanwhile, the torque and rotating speed range of a motor of a traditional pure electric heavy truck are narrow, the high-efficiency area of a transmission system is small, the structure is not compact enough, the transmission efficiency is not high enough, and the endurance mileage of the whole truck can be greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a motor rear-mounted double-speed specific gravity type truck drive axle with a central brake; the problems of heavy self weight, low transmission efficiency and non-compact structure of the existing pure electric heavy truck are mainly solved.
The technical scheme of the invention is as follows: the utility model provides a take motor rear-mounted double speed proportion formula truck transaxle of central authorities' stopper, includes cylinder gear train, spiral bevel gear pair, differential mechanism and arranges the wheel in transaxle both sides, its special character lies in: the number of teeth is the same, and the number of teeth is Z 1 The second driving cylindrical gear is meshed with the second driven cylindrical gear, the number of teeth is different, and the number of teeth of the second driving cylindrical gear is Z 2 The number of teeth of the second driven cylindrical gear is Z 3 And Z is 2 ＜Z 3 The method comprises the steps of carrying out a first treatment on the surface of the The spline shaft is connected with the first driving cylindrical gear and the second driving cylindrical gear through splines, and simultaneously supported by the driving cylindrical gear bearing to rotate, the motor is positioned at the rear side of the drive axle and connected with the spline shaft, and the motor transmits power to the two groups of cylindrical gear sets through the spline shaft; the first driven cylindrical gear and the second driven cylindrical gear are both provided with external splines which can be meshed with a sliding meshing sleeve, and the sliding meshing sleeve and the driving spiral bevel gear are fixed together through internal splines, relatively slide and rotate under the support of a spiral bevel gear bearing; the sliding engagement sleeve slides on the driving spiral bevel gear, and different speeds are respectively available for shifting when the sliding engagement sleeve slides to the second driven cylindrical gear and the first driven cylindrical gear; the spiral bevel gear pair is formed by meshing a driving spiral bevel gear and a driven spiral bevel gear, the driven spiral bevel gear is connected with a differential mechanism, and the differential mechanism is supported by a differential bearing and connected with wheels at two sides through a half shaft; the two sets of cylindrical gear sets transmit power to a spiral bevel gear pair, the spiral bevel gear pair converts the power into power perpendicular to the power transmission direction of a prime motor, and the power is output to wheels on two sides through a differential mechanismForce.
Further, the top end of the driving spiral bevel gear is fixedly connected with a central brake, the central brake is provided with a brake pull wire, and the brake pull wire is connected with a hand brake handle of the cab to form a parking brake.
Compared with the prior art, the motor rear-mounted double-speed gravity truck drive axle with the central brake has outstanding substantial characteristics and remarkable progress, 1, the motor is directly connected with the drive axle, meanwhile, the speed is higher in a low gear, the automobile is in a starting state, larger driving force can be provided, and in a high gear, the speed is smaller, and higher speed can be realized; 2. the motor is arranged at the rear end and is directly connected with the driving axle, so that the transmission efficiency is improved; 3. when the pure electric heavy truck is arranged in the whole vehicle, the transmission shaft is omitted, more space is reserved for arranging batteries, meanwhile, the integration level is improved, the transmission efficiency is improved, and more endurance mileage is increased.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Description of the drawings:
1-motor, 2-spline shaft, 3-first driving cylindrical gear, 4-second driving cylindrical gear, 5-driving cylindrical gear bearing, 6-second driven cylindrical gear, 7-first driven cylindrical gear, 8-spiral bevel gear bearing, 9-driving spiral bevel gear, 10-driven spiral bevel gear, 11-differential, 12-differential bearing, 13-central brake, 14-brake stay wire, 15-half shaft, 16-wheel, 17-sliding engagement sleeve.
Detailed Description
For a better understanding and implementation, the present invention is described in detail below with reference to specific examples in conjunction with the accompanying drawings; the examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention.
In the embodiment 1, referring to fig. 1, a motor 1 is connected with a spline shaft 2, the spline shaft 2 is connected with a first driving cylindrical gear 3 and a second driving cylindrical gear 4 through splines, and meanwhile, the spline shaft is supported by a driving cylindrical gear bearing 5 to rotate; the first driven cylindrical gear 7 is meshed with the first driving cylindrical gear 3, and has the number of teethThe same tooth number is Z 1 The method comprises the steps of carrying out a first treatment on the surface of the The second driven cylindrical gear 6 is meshed with the second driving cylindrical gear 4, the number of teeth is different, and the number of teeth of the second driven cylindrical gear 6 is Z 3 The number of teeth of the second driving cylindrical gear 4 is Z 2， Z 2 ＜Z 3 The method comprises the steps of carrying out a first treatment on the surface of the The first driven cylindrical gear 7 and the second driven cylindrical gear 6 are provided with external splines which can be meshed with a sliding meshing sleeve 17, and the sliding meshing sleeve 17 and the driving spiral bevel gear 9 are fixed together through internal splines, can slide relatively and rotate under the support of a spiral bevel gear bearing 8; when the sliding engagement sleeve 17 is combined with the spline of the first driven cylindrical gear 7, power is transmitted through the first driven cylindrical gear 7, the second driven cylindrical gear 6 is in an idle state and does not transmit power, because the number of teeth of the first driving cylindrical gear 3 is the same as that of the first driven cylindrical gear 7, and the rotating speed of the motor 1 is unchanged after passing through the group of gears; when the sliding engagement sleeve 17 is combined with the spline of the second driven cylindrical gear 6 after being separated from the spline of the first driven cylindrical gear 7, the first group of cylindrical gears are in an idle state and do not transmit power; the power is transmitted through the second driven cylindrical gear 6 because of Z 2 ＜Z 3 After the rotating speed of the motor 1 passes through the group of gears, the rotating speed is reduced, and meanwhile, the torque is increased; the top end of the driving spiral bevel gear 9 is fixedly connected with a central brake 13, and the central brake 13 is provided with a brake pull wire 14 and can be connected with a hand brake handle of a cab to form a parking brake function; the driving spiral bevel gear 9 is meshed with the driven spiral bevel gear 10 to form a spiral bevel gear pair, and meanwhile, the transmission direction of motive power is changed by 90 degrees and is transmitted to the directions of wheels 16 on two sides; the driven spiral bevel gear 10 is connected with a differential 11, and the differential 11 is supported by a differential bearing 12 and is transmitted to wheels 16 on two sides through a half shaft 15; when the spline of the sliding engagement sleeve 17 is not combined with the spline of the second driven cylindrical gear 6 or the spline of the first driven cylindrical gear 7, the motor 1 cannot transmit power and rotation speed to the driving spiral bevel gear 9, and the driving spiral bevel gear 9 does not rotate, namely, the wheels 16 at the two ends do not rotate at the moment; the invention relates to a motor rear-mounted double-speed gravity truck drive axle with a central brake.
The invention relates to an electric with a central brakeThe rear double-speed gravity truck driving axle is provided with two gears under different gear meshing states, the two sets of cylindrical gear sets are distinguished and selected for final transmission through a sliding meshing sleeve, when the sliding meshing sleeve is positioned at the middle position, the sliding meshing sleeve is not meshed with any set of cylindrical gears, and power cannot be transmitted from the cylindrical gears to the spiral bevel gears, and also cannot be transmitted to the two sides of the wheels; when the sliding engagement sleeve is connected with the first group of cylindrical gears, the sliding engagement sleeve is in a high gear, and the rotating speed of the motor is unchanged after the motor passes through the first group of cylindrical gears; when the sliding engagement sleeve is connected with the second group of cylindrical gears, the sliding engagement sleeve is in a low gear, and the rotating speed of the motor is reduced after the motor passes through the second group of cylindrical gears; namely, the two groups of cylindrical gears selectively transmit power through the sliding engagement sleeve; let the number of teeth of the first set of cylindrical gears be Z 1 The number of teeth of the driving cylindrical gear in the second group of cylindrical gears is Z 2 The number of teeth of the driven cylindrical gear is Z 3 ,Z 2 ＜Z 3 The method comprises the steps of carrying out a first treatment on the surface of the When the sliding engagement sleeve is engaged with the first group of gears, power is transmitted through the first group of cylindrical gears, the second group of cylindrical gears are in an idle state and do not transmit power, and the rotating speed of the motor is unchanged after the rotating speed of the motor passes through the group of gears; when the sliding engagement sleeve is meshed with the second group of cylindrical gears after being disengaged from the first group of gears, the first group of cylindrical gears are in an idle state and do not transmit power; the power is transmitted through the second set of spur gears and after the motor speed has passed through the set of gears, the speed is reduced while the torque is increased.
Claims (2)
1. The utility model provides a take motor rear-mounted double speed proportion formula truck transaxle of central authorities' stopper, includes cylinder gear train, spiral bevel gear pair, differential mechanism (11) and arranges wheel (16) in transaxle both sides, its characterized in that: the number of teeth is the same, and the number of teeth is Z 1 The second driving cylindrical gear (4) is meshed with the second driven cylindrical gear (6), the teeth number is different, and the teeth number of the second driving cylindrical gear (4) is Z 2 The number of teeth of the second driven cylindrical gear (6) is Z 3 And Z is 2 ＜Z 3 The method comprises the steps of carrying out a first treatment on the surface of the Spline shaft (2)The motor (1) is positioned at the rear side of the drive axle and is connected with the spline shaft (2), and the motor (1) transmits power to the two groups of cylindrical gear sets through the spline shaft (2); the first driven cylindrical gear (7) and the second driven cylindrical gear (6) are both provided with external splines which can be meshed with a sliding meshing sleeve (17), and the sliding meshing sleeve (17) and the driving spiral bevel gear (9) are fixed together through internal splines, relatively slide and rotate under the support of a spiral bevel gear bearing (8); the sliding engagement sleeve (17) slides on the driving spiral bevel gear (9) to slide to a second driven cylindrical gear (6) and a first driven cylindrical gear (7) respectively at different speeds for gear shifting; the spiral bevel gear pair is formed by meshing a driving spiral bevel gear (9) with a driven spiral bevel gear (10), the driven spiral bevel gear (10) is connected with a differential mechanism (11), and the differential mechanism (11) is connected with wheels (16) at two sides through a half shaft (15) under the support of a differential bearing (12); the two sets of cylindrical gear sets transmit power to the spiral bevel gear pair, the spiral bevel gear pair converts the power into power perpendicular to the power transmission direction of the prime motor, and the power is output to wheels (16) on two sides through the differential mechanism (11).
2. The motor rear double-speed gravity truck driving axle with the central brake according to claim 1, wherein the top end of the driving spiral bevel gear (9) is fixedly connected with the central brake (13), the central brake (13) is provided with a brake stay wire (14), and the brake stay wire (14) is connected with a hand brake handle of a cab to form parking brake.
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 CN109334421A (en) | 2019-02-15 |
| CN109334421B true CN109334421B (en) | 2024-04-05 |
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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 |
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| CN (1) | CN109334421B (en) |
Families Citing this family (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 (4)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8172712B2 (en) * | 2007-05-29 | 2012-05-08 | Chrysler Group Llc | Compact power transfer unit for transaxle applications |
-
2018
- 2018-11-28 CN CN201811430109.3A patent/CN109334421B/en active Active
Patent Citations (4)
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN109334421A (en) | 2019-02-15 |
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