CN205479154U - Planet gear of electricelectric motor car - Google Patents

Planet gear of electricelectric motor car Download PDF

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Publication number
CN205479154U
CN205479154U CN201620151977.8U CN201620151977U CN205479154U CN 205479154 U CN205479154 U CN 205479154U CN 201620151977 U CN201620151977 U CN 201620151977U CN 205479154 U CN205479154 U CN 205479154U
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CN
China
Prior art keywords
output shaft
oil
hole
cover plate
gear
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Expired - Fee Related
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CN201620151977.8U
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Chinese (zh)
Inventor
彭世昌
高立军
彭瀚
陈中义
杨爱国
高尚
张琴
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彭世昌
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Priority to CN201620151977.8U priority Critical patent/CN205479154U/en
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Abstract

The utility model relates to a planet gear of electricelectric motor car, which comprises a housin, the axial end of casing is the opening, an apron is installed at this axial end, another axial end of casing is equipped with the hole that is used for supporting the output shaft, the output shaft supports in the casing through first bearing, stretch out the casing outside the hole that the one end of output shaft was equipped with on through the casing, the other end of output shaft is equipped with the ring gear, the ring gear is equipped with the internal tooth, the apron inboard is fixed with planetary mechanism, planetary mechanism is arranged in the ring gear, planetary mechanism's planetary gear all with the inner gearing of ring gear, planetary mechanism's planetary gear all meshes with the sun gear that is used for being connected the input shaft, each planetary gear of planetary mechanism is epaxial at each planet through the 2nd bearing fit respectively, the one end of planet axle supports on the planet carrier, planet carrier and apron fixed connection, the other end of planet axle supports on the apron, the apron is equipped with the hole that is used for supplying the input shaft to pass. It has high rotational speed, small in noise, and the transmission is steady, lubricated condition advantage such as good.

Description

The planetary reduction gear of pure electric vehicle
Technical field
This utility model relates to a kind of decelerator, particularly to the planetary reduction gear of a kind of pure electric vehicle.
Background technology
Development along with China's pure electric vehicle, it is found by the applicant that use high-speed electric expreess locomotive to become a dynamical system with reducer group, substitute the dynamical system of other new-energy automobiles, environmental protection, purpose energy-conservation, efficient can be realized, but require that decelerator rotating speed has transmission stability, noise little (db75 with), the features such as temperature is low when 12000n/min.But, conventional decelerator be planet carrier, planet axis, planet tooth be holistic planetary reduction gear, volume weight, poor lubrication, transmission are unstable, the slow-speed of revolution, noise are big, fragile, not reaching rotating speed and have transmission stability, noise little (db75 with) when 12000n/min, temperature is low waits requirement.
Summary of the invention
The purpose of this utility model is the deficiency existed for prior art, it is provided that the planetary reduction gear of a kind of pure electric vehicle, and it is little that it has high rotating speed, noise, stable drive, the advantages such as lubricating condition is good.
nullThe purpose of this utility model is to use following proposal to realize: the planetary reduction gear of a kind of pure electric vehicle,Including housing,One axial end of described housing is opening,One cover plate is arranged on this axial end,Another axial end of described housing is provided with the hole for supporting output shaft,Described output shaft is supported in the housing by clutch shaft bearing,The hole that one end of described output shaft is provided with by housing overhangs housing,The other end of described output shaft is provided with gear ring,Described gear ring is provided with internal tooth,It is fixed with planetary mechanism inside described cover plate,Described planetary mechanism is positioned in gear ring,The planetary gear of described planetary mechanism all engages with the internal tooth of gear ring,The planetary gear of described planetary mechanism all engages with the sun gear being used for being connected power shaft,Each planetary gear of described planetary mechanism passes through the second bearing fit respectively in each planet axis,One end of described planet axis is supported on planet carrier,Described planet carrier is fixing with cover plate to be connected,The other end of described planet axis supports on the cover board,Described cover plate is provided with the hole for passing for power shaft.Described planetary two axial ends is equipped with pad, and described pad is enclosed within planet axis.
nullDescribed cover plate is provided with oil-feed oil duct and for supporting the hole of planet axis,Described planet axis is provided with inner chamber,One axle head of the inner chamber of planet axis opens wide the oil-feed oil duct being provided with connection cover plate,Another axle head is closed,The circumferential wall of planet axis is provided with oil-through hole and communicates with the inner chamber of planet axis,It is suitable for exporting the lubricating oil of the interior intracavity of planet axis to the second bearing in planet axis,Described planet carrier is provided with multiple oil guiding hole,The hole that the upstream extremity of each oil guiding hole of described planet carrier is provided with by planet axis respectively communicates with the inner chamber of each planet axis,The downstream of each oil guiding hole of planet carrier connects with the upstream extremity of long-pending oil device,The downstream of described long-pending oil device stretches in the inner chamber that output shaft is provided with,The downstream of described long-pending oil device and the spaced space of interior cavity wall of output shaft,One axle head of the inner chamber of output shaft opens wide the downstream of the long-pending oil device for planet carrier and stretches into,Another axle head is closed,The circumferential wall of described output shaft is provided with oil-through hole and communicates with the inner chamber of output shaft,It is suitable for exporting the lubricating oil of the interior intracavity of output shaft to the clutch shaft bearing on output shaft.Described planet carrier includes a gripper shoe, on the end face of described gripper shoe ring even circumferential be distributed four for being connected claw with cover plate, described gripper shoe is provided with the hole for supporting planet axis.In described gripper shoe, oil guiding hole is set.
Being provided with atomizer on described cover plate, atomizer head end stretches in the clearance space between two planetary gears, the oil-feed oil duct that the tail end connection cover plate of atomizer is provided with.Atomizer can stretch into the clearance space between two planetary gears, by the spray-hole oil spout in mouth post circumferential wall, it can also be the hole oil spout of oil nozzle top jet, it is consequently formed the forced feed lubrication to gear of the direct injection lubrication, it is better than former splash oil lubrication effect, to adapt to ensure that the lubrication of high rotation speed gear box, the power height rotating speed making decelerator export up to 8000 turns and do not occur power weak, moreover it is possible to ensure that power continues stable output.
Described power shaft is motor shaft, and described cover plate is fixing with electric motor end cap to be connected, and described cover plate is provided with oil-feed oil duct and is connected with the oil duct of electromotor cooling system, and described cover plate is provided with spill port and is connected with the oil duct of electromotor cooling system.It is provided with oil filter in described spill port.
The end face outside of described cover plate is provided with annular groove, and the end cap of motor is provided with corresponding annular groove, after fixing to cover plate and electric motor end cap connection, forms oil-feed oil duct, and electric motor end cap is provided with cooling oil duct and communicates with oil-feed oil duct.
On the cover board punching forms oil-feed oil duct, and this oil-feed oil duct is connected with the oil duct of electromotor cooling system by pipeline.
Described output shaft and gear ring are an overall structure, described output shaft is multidiameter, the bigger diameter end end face of described output shaft arranges gear ring, the end face of described output shaft big footpath section arranges incised notch, make output shaft big footpath section thinner than the thickness of the part away from gear ring near the thickness of the part of gear ring, when incised notch portion makes turn up more than 6000 turns, make gear ring have small floating, reduce Rotation Noise, the stationarity of transmission and the reduction of noise are had certain supplementing.
Described output shaft is provided with the hole for connecting gear ring inner chamber and housing cavity.
Described housing is provided with axle sleeve, and described axle sleeve is provided with ladder axis hole, and the ladder axis hole of axle sleeve is the hole for supporting output shaft, is provided with two clutch shaft bearings, is provided with spacer between two clutch shaft bearings in the ladder axis hole of described axle sleeve.The mounting distance of two clutch shaft bearings on output shaft have to be larger than 20mm, when guarantee output shaft affords big moment of torsion (F >=2800N m), it is ensured that output shaft steady.The small-bore end of described axle sleeve is positioned at inside the end of large aperture, the large aperture end of described axle sleeve is fixed with the end cap for clutch shaft bearing carries out axial limiting, described output shaft is three grades of multidiameters, the miner diameter end of described output shaft from inside to outside stretches out housing through the ladder axis hole of axle sleeve, the overhanging end of described output shaft is fixed with ring flange, is axially fixed in axle sleeve by output shaft by ring flange.Described end cap is provided with oil sealing.The miner diameter end end face of described output shaft is bolted the pressing plate for axial compression ring flange.Two clutch shaft bearings in axle sleeve are all enclosed within the path section of output shaft.The central diameter section diameter of output shaft is more than the aperture of the clutch shaft bearing in axle sleeve, less than the small-bore of axle sleeve.
It is provided with inner spacing collar and outer separator between two clutch shaft bearings in axle sleeve, the internal diameter of described inner spacing collar is identical with the diameter of output shaft path section, the external diameter of described inner spacing collar is less than the internal diameter of outer separator, making to leave between inner spacing collar and outer separator gap, the external diameter of described outer separator is identical with the aperture of installing hole.Outer separator can replace with back-up ring.
The length of axle sleeve is more than its diameter.
It has been removably secured breather plug on described housing.
It is removably secured, on described housing, the plug screw that is magnetic.
Described housing is connected with cover plate seam by bolt.
Described axle sleeve is provided with oil trap, the oil that collection splashes, and is suitable for exporting the lubricating oil in housing cavity to clutch shaft bearing.
This utility model has the advantage, that the planet carrier of the planetary reduction gear due to this pure electric vehicle, planet axis does not rotates, motor shaft drives sun gear to rotate, sun gear rotates and drives planetary gear rotation, planetary gear rotation drives gear ring, output shaft rotation, one end of planet axis is supported on planet carrier, described planet carrier is fixing with cover plate to be connected, the other end of described planet axis supports on the cover board, this structure makes planet axis location reliable, under high-speed electric expreess locomotive reaches the high-speed rotation of 12000n/min, planetary smoothness of operation is good, reliably, noise is little, and this decelerator volume is little, compact conformation, it is easy to car load layout.
Bearing on each planet axis, output shaft is all by the oil duct forced feed lubrication on planet axis, output shaft, and the lubrication of planetary gear, sun gear and gear ring is taken away by oil in time by 2 atomizer oil spout forced feed lubrications, the heat that each friction pair produces, good cooling results.The power height rotating speed of this decelerator output up to 8000 turns and does not occur power weak, moreover it is possible to ensure that power continues stable output.
Accompanying drawing explanation
Fig. 1 is the structural representation of the planetary reduction gear of pure electric vehicle of the present utility model;
Fig. 2 is the structural representation of the cover plate of the planetary reduction gear of pure electric vehicle of the present utility model.
In accompanying drawing, 1 is housing, and 1-1 is axle sleeve, 1-2 is oil trap, and 2 is cover plate, and 2-1 is oil-feed oil duct, 2-2 is spill port, and 3 is output shaft, and 3-1 is incised notch, 4 is gear ring, and 5 is planetary gear, and 6 is sun gear, 7 is planet axis, and 8 is planet carrier, and 8-1 is oil guiding hole, 8-2 is long-pending oil device, and 9 is motor shaft, and 10 is atomizer, 11 is ring flange, and 12 is pressing plate, and 13 is end cap, 14 is inner spacing collar, and 15 is outer separator, and 16 is oil filter, 17 is breather plug, and 18 is magnetic plug, and 19 is oil sealing, 20 is clutch shaft bearing, and 21 is the second bearing, and 22 is pad.
Detailed description of the invention
Seeing Fig. 1 and Fig. 2, the planetary reduction gear of a kind of pure electric vehicle, including housing 1, an axial end of described housing 1 is opening, and a cover plate 2 is arranged on this axial end.Described housing 1 is connected with cover plate 2 seam by bolt.Another axial end of described housing 1 is provided with the hole for supporting output shaft 3, described output shaft 3 supports within the case 1 by clutch shaft bearing 20, the hole that one end of described output shaft 3 is provided with by housing 1 overhangs housing 1, the other end of described output shaft 3 is provided with gear ring 4, described gear ring 4 is provided with internal tooth, it is fixed with planetary mechanism inside described cover plate 2, described planetary mechanism is positioned in gear ring 4, the planetary gear 5 of described planetary mechanism all internal tooths with gear ring 4 engage, the planetary gear 5 of described planetary mechanism all engages with the sun gear 6 being used for being connected power shaft, each planetary gear 5 of described planetary mechanism is coordinated in each planet axis 7 by the second bearing 21 respectively.The planetary gear 5 of the present embodiment is fixed on planetary gear 5 in planet axis 7 by high-speed bearing, under high-speed rotation steadily, reliably.One end of described planet axis 7 is supported on planet carrier 8, and described planet carrier 8 is fixing with cover plate 2 to be connected, and the other end of described planet axis 7 is supported on cover plate 2, makes planet axis 7 position reliably, and the smoothness of operation of planetary gear 5 is good.Described cover plate 2 is provided with the hole for passing for power shaft.The two axial ends of described planetary gear 5 is equipped with pad 22, is used for adjusting gap, and gear shaft holds.Described pad 22 is enclosed within planet axis 7.It has been removably secured breather plug 17 on described housing 1.It is removably secured, on described housing 1, the plug screw 18 that is magnetic, is used for holding ferrum and cuts powder, it is simple to clean.Described planet carrier 8 includes a gripper shoe, on the end face of described gripper shoe ring even circumferential be distributed four for being connected claw with cover plate 2, described gripper shoe is provided with the hole for supporting planet axis 7.Oil guiding hole 8-1 is set in described gripper shoe.
nullDescribed cover plate 2 is provided with oil-feed oil duct 2-1 and for supporting the hole of planet axis 7,Described planet axis 7 is provided with inner chamber,One axle head of the inner chamber of planet axis 7 opens wide the oil-feed oil duct 2-1 being provided with connection cover plate 2,Another axle head is closed,The circumferential wall of planet axis 7 is provided with oil-through hole and communicates with the inner chamber of planet axis 7,It is suitable for exporting the lubricating oil of the interior intracavity of planet axis 7 to the second bearing 21 in planet axis 7,Described planet carrier 8 is provided with multiple oil guiding hole 8-1,The hole that the upstream extremity of each oil guiding hole 8-1 of described planet carrier 8 is provided with by planet axis 7 respectively communicates with the inner chamber of each planet axis 7,The downstream of each oil guiding hole 8-1 of planet carrier 8 respectively with long-pending oil device 8-2 upstream extremity connect,The downstream of described long-pending oil device 8-2 stretches in the inner chamber that output shaft 3 is provided with,The downstream of described long-pending oil device 8-2 and the spaced space of interior cavity wall of output shaft 3,One axle head of the inner chamber of output shaft 3 opens wide the downstream of the long-pending oil device 8-2 for planet carrier 8 and stretches into,Another axle head is closed,The circumferential wall of described output shaft 3 is provided with oil-through hole and communicates with the inner chamber of output shaft 3,It is suitable for exporting the lubricating oil of the interior intracavity of output shaft 3 to the clutch shaft bearing 20 on output shaft 3.Being provided with atomizer 10 on described cover plate 2, atomizer 10 head end stretches in the clearance space between two planetary gears 5, the oil-feed oil duct 2-1 that the tail end connection cover plate 2 of atomizer 10 is provided with.
Described power shaft is motor shaft 9, described cover plate 2 is fixing with electric motor end cap to be connected, described cover plate 2 is provided with oil-feed oil duct 2-1 and is connected with the oil duct of electromotor cooling system, described cover plate 2 is provided with spill port 2-2 and is connected with the oil duct of electromotor cooling system, define the systemic circulation of a cooling system, it is possible to the torrid zone that each friction pair is produced is walked.It is provided with oil filter 16 in described spill port 2-2.Not oil in reserve in gear-box.The end face outside of described cover plate 2 is provided with annular groove, and the end cap of motor is provided with corresponding annular groove, after fixing to cover plate 2 and electric motor end cap connection, forms oil-feed oil duct 2-1, and electric motor end cap is provided with cooling oil duct and communicates with oil-feed oil duct 2-1.Certainly, oil-feed oil duct 2-1 of the present utility model is not limited only to above-described embodiment, oil-feed oil duct 2-1 of the present utility model can also use following structure: on cover plate 2, punching formation oil-feed oil duct 2-1, this oil-feed oil duct 2-1 are connected with the oil duct of electromotor cooling system by pipeline.
Described output shaft 3 is an overall structure with gear ring 4, described output shaft 3 is multidiameter, the bigger diameter end end face of described output shaft 3 arranges gear ring 4, the end face of described output shaft 3 big footpath section arranges incised notch 3-1, make output shaft 3 big footpath section thinner than the thickness of the part away from gear ring 4 near the thickness of the part of gear ring 4, output shaft 3 is made to have a floating deformed region near toothed portion, after gear on output shaft 3 is by slowing down, the output moment of torsion born is bigger, under the effect of torsion, near the teeth portion of output shaft 3, there is a certain degree of deformation in district to carry out the transition of torsion and certain floating, there is cushioning effect and precision makes up effect.Described output shaft 3 is provided with the hole for connecting gear ring 4 inner chamber and housing 1 inner chamber.
Described housing 1 is provided with axle sleeve 1-1, described axle sleeve 1-1 is provided with ladder axis hole, the ladder axis hole of axle sleeve 1-1 is the hole for supporting output shaft 3, the ladder axis hole of described axle sleeve 1-1 is provided with two clutch shaft bearings 20, it is provided with spacer between two clutch shaft bearings 20, the small-bore end of described axle sleeve 1-1 is positioned at inside the end of large aperture, the large aperture end of described axle sleeve 1-1 is fixed with the end cap 13 for clutch shaft bearing 20 carries out axial limiting, described output shaft 3 is three grades of multidiameters, the miner diameter end of described output shaft 3 from inside to outside stretches out housing 1 through the ladder axis hole of axle sleeve 1-1, the overhanging end of described output shaft 3 is fixed with ring flange 11, by ring flange 11, output shaft 3 is axially fixed in axle sleeve 1-1.Described end cap is provided with oil sealing 19.The miner diameter end end face of described output shaft 3 is bolted the pressing plate 12 for axial compression ring flange 11.Two clutch shaft bearings 20 in axle sleeve 1-1 are all enclosed within the path section of output shaft 3.The central diameter section diameter of output shaft 3 is more than the aperture of the clutch shaft bearing 20 in axle sleeve 1-1, less than the small-bore of axle sleeve 1-1.It is provided with inner spacing collar 14 and outer separator 15 between two clutch shaft bearings 20 in axle sleeve 1-1, the internal diameter of described inner spacing collar 14 is identical with the diameter of output shaft 3 path section, the external diameter of described inner spacing collar 14 is less than the internal diameter of outer separator 15, making to leave between inner spacing collar 14 and outer separator 15 gap, the external diameter of described outer separator 15 is identical with the aperture of installing hole.Outer separator 15 can replace with back-up ring.Described axle sleeve 1-1 is provided with oil trap 1-2, is suitable for exporting the lubricating oil of intracavity in housing 1 to clutch shaft bearing 20.The length of axle sleeve 1-1 is more than its diameter.
Planet carrier 8, planet axis 7 do not rotate, and motor shaft 9 drives sun gear 6 to rotate, and sun gear 6 rotates and drives planetary gear 5 to rotate, and planetary gear 5 rotates and drives gear ring 4, output shaft 3 to rotate.
Lubrication, cooling are carried out by two oil circuits: one is that oil oil-feed oil duct 2-1 from cover plate 2 enters after the inner chamber of planet axis 7 again by the second bearing 21 in the oil-through hole lubrication planet axis 7 of planet axis 7, during oil in the inner chamber of planet axis 7 flows to the oil guiding hole 8-1 of planet carrier 8 by the hole on axle simultaneously, in the inner chamber being entered output shaft 3 by long-pending oil device 8-2, two clutch shaft bearings 20 on the oil-through hole lubrication output shaft 3 of output shaft 3;Two is to have two atomizers 10 on housing 1, oil oil-feed oil duct 2-1 from cover plate 2 enters atomizer 10, having multiple overstocked aperture on atomizer 10, under the effect of oil pressure (3 ∽ 5p), oil sprays from atomizer 10 and sun gear 6, planetary gear 5, gear ring 4 is carried out forced feed lubrication.
The lubricating and cooling system oil of this decelerator is supplied by the cooling system of motor, and forms the systemic circulation of a cooling system, and the torrid zone that can in time the working parts of decelerator be produced is walked;Having a lot of oil duct on electric machine casing 1 and reducer shell 1, heat produced by the bearing on housing 1 is also taken away in time.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, this decelerator can be used for the other field except pure electric vehicle.Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to this utility model.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to comprise these change and modification.

Claims (10)

  1. null1. the planetary reduction gear of a pure electric vehicle,Including housing,It is characterized in that: an axial end of described housing is opening,One cover plate is arranged on this axial end,Another axial end of described housing is provided with the hole for supporting output shaft,Described output shaft is supported in the housing by clutch shaft bearing,The hole that one end of described output shaft is provided with by housing overhangs housing,The other end of described output shaft is provided with gear ring,Described gear ring is provided with internal tooth,It is fixed with planetary mechanism inside described cover plate,Described planetary mechanism is positioned in gear ring,The planetary gear of described planetary mechanism all engages with the internal tooth of gear ring,The planetary gear of described planetary mechanism all engages with the sun gear being used for being connected power shaft,Each planetary gear of described planetary mechanism passes through the second bearing fit respectively in each planet axis,One end of described planet axis is supported on planet carrier,Described planet carrier is fixing with cover plate to be connected,The other end of described planet axis supports on the cover board,Described cover plate is provided with the hole for passing for power shaft.
  2. nullThe planetary reduction gear of pure electric vehicle the most according to claim 1,It is characterized in that: described cover plate is provided with oil-feed oil duct and for supporting the hole of planet axis,Described planet axis is provided with inner chamber,One axle head of the inner chamber of planet axis opens wide the oil-feed oil duct being provided with connection cover plate,Another axle head is closed,The circumferential wall of planet axis is provided with oil-through hole and communicates with the inner chamber of planet axis,It is suitable for exporting the lubricating oil of the interior intracavity of planet axis to the second bearing in planet axis,Described planet carrier is provided with multiple oil guiding hole,The hole that the upstream extremity of each oil guiding hole of described planet carrier is provided with by planet axis respectively communicates with the inner chamber of each planet axis,The downstream of each oil guiding hole of planet carrier connects with the upstream extremity of long-pending oil device,The downstream of described long-pending oil device stretches in the inner chamber that output shaft is provided with,The downstream of described long-pending oil device and the spaced space of interior cavity wall of output shaft,One axle head of the inner chamber of output shaft opens wide the downstream of the long-pending oil device for planet carrier and stretches into,Another axle head is closed,The circumferential wall of described output shaft is provided with oil-through hole and communicates with the inner chamber of output shaft,It is suitable for exporting the lubricating oil of the interior intracavity of output shaft to the clutch shaft bearing on output shaft.
  3. The planetary reduction gear of pure electric vehicle the most according to claim 1, it is characterised in that: being provided with atomizer on described cover plate, atomizer head end stretches in the clearance space between two planetary gears, the oil-feed oil duct that the tail end connection cover plate of atomizer is provided with.
  4. 4. according to the planetary reduction gear of the pure electric vehicle described in Claims 2 or 3, it is characterized in that: described power shaft is motor shaft, described cover plate is fixing with electric motor end cap to be connected, described cover plate is provided with oil-feed oil duct and is connected with the oil duct of electromotor cooling system, and described cover plate is provided with spill port and is connected with the oil duct of electromotor cooling system.
  5. The planetary reduction gear of pure electric vehicle the most according to claim 4, it is characterised in that: it is provided with oil filter in described spill port.
  6. The planetary reduction gear of pure electric vehicle the most according to claim 4, it is characterized in that: the end face outside of described cover plate is provided with annular groove, the end cap of motor is provided with corresponding annular groove, after fixing to cover plate and electric motor end cap connection, forming oil-feed oil duct, electric motor end cap is provided with cooling oil duct and communicates with oil-feed oil duct.
  7. The planetary reduction gear of pure electric vehicle the most according to claim 4, it is characterised in that: on the cover board punching forms oil-feed oil duct, and this oil-feed oil duct is connected with the oil duct of electromotor cooling system by pipeline.
  8. The planetary reduction gear of pure electric vehicle the most according to claim 1, it is characterized in that: described output shaft and gear ring are an overall structure, described output shaft is multidiameter, the bigger diameter end end face of described output shaft arranges gear ring, the end face of described output shaft big footpath section arranges incised notch, makes output shaft big footpath section thinner than the thickness of the part away from gear ring near the thickness of the part of gear ring.
  9. The planetary reduction gear of pure electric vehicle the most according to claim 1, it is characterized in that: described housing is provided with axle sleeve, described axle sleeve is provided with ladder axis hole, the ladder axis hole of axle sleeve is the hole for supporting output shaft, the ladder axis hole of described axle sleeve is provided with two clutch shaft bearings, it is provided with spacer between two clutch shaft bearings, the small-bore end of described axle sleeve is positioned at inside the end of large aperture, the large aperture end of described axle sleeve is fixed with the end cap for clutch shaft bearing carries out axial limiting, described output shaft is three grades of multidiameters, the miner diameter end of described output shaft from inside to outside stretches out housing through the ladder axis hole of axle sleeve, the overhanging end of described output shaft is fixed with ring flange, by ring flange, output shaft is axially fixed in axle sleeve.
  10. The planetary reduction gear of pure electric vehicle the most according to claim 9, it is characterised in that: the length of axle sleeve is more than its diameter.
CN201620151977.8U 2016-03-01 2016-03-01 Planet gear of electricelectric motor car Expired - Fee Related CN205479154U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106926048A (en) * 2017-03-29 2017-07-07 广东工业大学 A kind of main shaft speed increaser
CN113389882A (en) * 2021-05-31 2021-09-14 东风商用车有限公司 Gear box flange divides oily structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106926048A (en) * 2017-03-29 2017-07-07 广东工业大学 A kind of main shaft speed increaser
CN113389882A (en) * 2021-05-31 2021-09-14 东风商用车有限公司 Gear box flange divides oily structure

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Granted publication date: 20160817

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