CN103644289A - Electric reduction gearbox provided with duplicate gear mechanism - Google Patents

Electric reduction gearbox provided with duplicate gear mechanism Download PDF

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Publication number
CN103644289A
CN103644289A CN201310639199.8A CN201310639199A CN103644289A CN 103644289 A CN103644289 A CN 103644289A CN 201310639199 A CN201310639199 A CN 201310639199A CN 103644289 A CN103644289 A CN 103644289A
Authority
CN
China
Prior art keywords
gear
duplicate gear
shaft
output shaft
input
Prior art date
Application number
CN201310639199.8A
Other languages
Chinese (zh)
Inventor
孟举国
王建东
孟强
Original Assignee
淅川县顺隆弹簧有限公司
王建东
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 淅川县顺隆弹簧有限公司, 王建东 filed Critical 淅川县顺隆弹簧有限公司
Priority to CN201310639199.8A priority Critical patent/CN103644289A/en
Publication of CN103644289A publication Critical patent/CN103644289A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearbox casing, e.g. methods or means for assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0412Cooling or heating; Control of temperature
    • F16H57/0415Air cooling or ventilation; Heat exchangers; Thermal insulations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant
    • F16H57/043Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant
    • F16H57/043Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • F16H57/0431Means for guiding lubricant directly onto a tooth surface or to foot areas of a gear, e.g. by holes or grooves in a tooth flank
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H2057/02086Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing

Abstract

The invention discloses an electric reduction gearbox provided with a duplicate gear mechanism. The electric reduction gearbox comprises a shell, an input shaft and an output shaft, wherein the shell is provided with a front end cap and a rear end cap, the input shaft is provided with an input gear, the output shaft is provided with an output gear, the output shaft is arranged on the rear end cap, the input end is arranged on the front end cap, the duplicate gear mechanism is arranged in the shell and comprises a shaft pin and a duplicate gear, the shaft pin and the duplicate gear are arranged on the front end cap and the rear end cap respectively, the duplicate gear is arranged on the shaft pin through first bearings, the two ends of the duplicate gear are provided with bearing installation holes, the outer rings of the first bearings are arranged in the bearing installation holes, the inner rings of the first bearings are arranged on the shaft pin, front teeth of the duplicate gear are meshed with the input gear, and rear teeth of the duplicate gear are meshed with the output gear. The first bearings move from the end caps of the shell to the inside of the two ends of the duplicate gear, so that the shaft distance between the shaft pin and the output shaft can be designed to be smaller on the premise that the same strength of the shell is guaranteed. Accordingly, the size of the electric reduction gearbox is greatly reduced, and the electric reduction gearbox is suitable for vehicles.

Description

Electric speed reducing case with duplicate gear mechanism

Technical field

The present invention relates to a kind of electric speed reducing case, particularly relate to a kind of electric speed reducing case with duplicate gear mechanism.

Background technique

Along with social fast development, people are more and more to the functional requirement of electric vehicle, and performance requirement is also more and more higher, particularly to its flying power, require more and more higher.For improving the flying power of electric vehicle, general employing alleviates complete vehicle weight and increases the means such as capacity of battery.Wherein, for alleviating complete vehicle weight, the size that reduces vehicle drive system is one of important channel; For increasing capacity of battery, because quantity and the volume of storage battery increased, institute thinks the installing space of assurance storage battery, also must reduce the size of vehicle drive system.

Therefore, the size that how to reduce vehicle drive system is to improve the key of the flying power of electric vehicle, and electric speed reducing case is as the important component part of electric vehicle transmission system, because its volume accounting is larger, so how to dwindle the volume of electric speed reducing case, being again the most important thing that solves flying power problem, is the matter of utmost importance of needing at present solution badly.

Summary of the invention

The object of the invention is in order to overcome the deficiency of above-mentioned background technology, the electric speed reducing case with duplicate gear mechanism that a kind of volume is little is provided.

In order to realize above object, a kind of electric speed reducing case with duplicate gear mechanism provided by the invention, comprise the housing with front cover and rear end cover, the input shaft of tape input gear and with the output shaft of output gear, described output shaft is arranged on described rear end cover, described input shaft is arranged on described front cover, in described housing, be provided with the duplicate gear mechanism for be in transmission connection described input shaft and described output shaft, described duplicate gear mechanism comprises that two ends are arranged on respectively pivot pin and the duplicate gear on described front cover and rear end cover, described duplicate gear two ends are arranged on described pivot pin by clutch shaft bearing respectively, described duplicate gear two ends are respectively equipped with for the bearing mounting hole of described clutch shaft bearing is installed, and the outer ring of described clutch shaft bearing is arranged in described bearing mounting hole, and the inner ring of described clutch shaft bearing is arranged on described pivot pin, the nipper of described duplicate gear and the engagement of described input gear, the rear tooth of described duplicate gear and the engagement of described output gear.By adopting the Double-gear structure of duplicate gear replacement conventional construction, make the more compact structure of this electric speed reducing case, volume is less and reliable transmission is better; Simultaneously, inner by the two ends that described clutch shaft bearing is moved on to described duplicate gear from housing end plug, like this, guaranteeing under the prerequisite of housing same intensity, distance between shafts between described pivot pin and described output shaft is programmable less, thereby has reduced widely the volume of this electric speed reducing case; And, described clutch shaft bearing is moved on to after enclosure interior, because described clutch shaft bearing is fully immersed in fluid, so its lubrication is good, and the clutch shaft bearing of conventional construction can only lean on housing heat radiation.

In such scheme, described pivot pin is provided with for locating the locating piece of described clutch shaft bearing.

In such scheme, described locating piece is to be arranged on the shaft shoulder on described pivot pin or to be sleeved on the supporting sleeve on described pivot pin.

In such scheme, the internal surface of described supporting sleeve is sleeved on described pivot pin, and the outer surface of described supporting sleeve is inserted in described rear end cover.

In such scheme, described input shaft is provided with the output shaft mounting hole for output shaft described in plug-in mounting near one end of output shaft, and described output shaft is arranged in described output shaft mounting hole by the second bearing near one end of input shaft.By adopting, described output shaft is coaxially arranged on to the technological scheme in described input shaft, has avoided adding in housing for the inner support of described input shaft and output shaft is installed, thereby provide condition for dwindling the volume of this electric speed reducing case; Meanwhile, such design more easily guarantees the coaxality of described input shaft and output shaft.

In such scheme, described the second bearing is needle bearing.

In such scheme, described input shaft is provided with the attachment hole with keyway away from one end of output shaft, described attachment hole is communicated with formation through hole with described output shaft mounting hole, be provided with intermediate seal ring member in described through hole, and described attachment hole and described output shaft mounting hole are coaxially arranged.By described attachment hole is communicated with described output shaft mounting hole, form through hole, like this, guaranteed further the coaxality of described input shaft and output shaft, reduced processing and assembling difficulty.

In such scheme, the flank of described input gear is radially provided with the input gear oilhole that runs through gear, the flank of described output gear is radially provided with the output gear oilhole that runs through gear, is provided with for being communicated with the passage of described input gear oilhole and described output gear oilhole in described output shaft.By adopting, on described input shaft and output shaft, offer respectively the technological scheme for oilhole and the passage of oil circulation, fluid can fully be circulated in housing, thereby reach the object of each component in lubrication and cooling housing, simple in structure and lubrication is effective.

In such scheme, described passage and described output shaft are coaxially arranged.

In such scheme, the rear tooth flank of described duplicate gear is radially provided with the duplicate gear oilhole that runs through gear.By also add the oilhole for oil circulation on described duplicate gear, each component of the cooling described duplicate gear of fluid energy sufficient lubrication mechanism like this.

The beneficial effect that technological scheme provided by the invention is brought is:

1, by adopting the Double-gear structure of duplicate gear replacement conventional construction, make the more compact structure of this electric speed reducing case, volume is less and reliable transmission is better;

2, inner by the two ends that described clutch shaft bearing is moved on to described duplicate gear from housing end plug, like this, guaranteeing that under the prerequisite of housing same intensity, the distance between shafts between described pivot pin and described output shaft is programmable less, thereby has reduced widely the volume of this electric speed reducing case;

3, described clutch shaft bearing is moved on to after enclosure interior, because described clutch shaft bearing is fully immersed in fluid, so its lubrication is good, and the clutch shaft bearing of conventional construction can only lean on housing heat radiation;

4, by adopting, described output shaft is coaxially arranged on to the technological scheme in described input shaft, has avoided adding in housing for the inner support of described input shaft and output shaft is installed, thereby provide condition for dwindling the volume of this electric speed reducing case; Meanwhile, such design more easily guarantees the coaxality of described input shaft and output shaft;

5, by described attachment hole is communicated with described output shaft mounting hole, form through hole, like this, guaranteed further the coaxality of described input shaft and output shaft, reduced processing and assembling difficulty;

6, by adopting, on described input shaft and output shaft, offer respectively the technological scheme for oilhole and the passage of oil circulation, fluid can fully be circulated in housing, thereby reach the object of each component in lubrication and cooling housing, simple in structure and lubrication is effective;

7, by also add the oilhole for oil circulation on described duplicate gear, each component of the cooling described duplicate gear of fluid energy sufficient lubrication mechanism like this;

8, the heat diffusion area that has increased this electric speed reducing case on described housing by the radiating fin adding, has improved radiating efficiency, like this moving hot of the abundant cooling profit fluid of energy and each parts of mechanism.

The present invention is compared with the prior art, and fully shows that its superiority is: simple in structure, compact, volume is little and lubrication is effective, the operation of each transmission part more steadily, more reliable, noise is less etc.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of fluid moving line in the present invention.

In figure: housing 1, front cover 1a, rear end cover 1b, input shaft 2, input gear 2a, input gear oilhole 2a1, output shaft mounting hole 2b, attachment hole 2c, intermediate seal ring member 2d, output shaft 3, output gear 3a, output gear oilhole 3a1, passage 3a2, the second bearing 3b, duplicate gear mechanism 4, pivot pin 4a, duplicate gear 4b, bearing mounting hole 4b1, duplicate gear oilhole 4b2, clutch shaft bearing 4c, locating piece 4d, shaft shoulder 4d1, supporting sleeve 4d2, axle bumper 5, motor speed measuring sheave 6, motor land 7, speed transmission sensor 8, radiating fin 9.

Embodiment

Below in conjunction with drawings and Examples, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention.

The present embodiment provides a kind of electric speed reducing case with duplicate gear mechanism, comprise the housing 1 with front cover 1a and rear end cover 1b, the input shaft 2 of tape input gear 2a and the output shaft 3 with output gear 3a, described output shaft 3 is arranged on described rear end cover 1b, described input shaft 2 is arranged on described front cover 1a, described input shaft 2 is coaxially arranged with described output shaft 3, in described housing 1, be provided with the duplicate gear mechanism 4 for be in transmission connection described input shaft 2 and described output shaft 3, described duplicate gear mechanism 4 comprises that two ends are arranged on respectively pivot pin 4a and the duplicate gear 4b on described front cover 1a and rear end cover 1b, described duplicate gear 4b two ends are arranged on described pivot pin 4a by clutch shaft bearing 4c respectively, described duplicate gear 4b two ends are respectively equipped with for the bearing mounting hole 4b1 of described clutch shaft bearing 4c is installed, and the outer ring of described clutch shaft bearing 4c is arranged in described bearing mounting hole 4b1, and the inner ring of described clutch shaft bearing 4c is arranged on described pivot pin 4a, the nipper of described duplicate gear 4b and described input gear 2a engagement, the rear tooth of described duplicate gear 4b and described output gear 3a engagement.By adopting the Double-gear structure of duplicate gear 4b replacement conventional construction, make the more compact structure of this electric speed reducing case, volume is less and reliable transmission is better; Simultaneously, inner by the two ends that described clutch shaft bearing 4c is moved on to described duplicate gear 4b from housing end plug, like this, guaranteeing under the prerequisite of housing 1 same intensity, distance between shafts between described pivot pin 4a and described output shaft 3 is programmable less, thereby has reduced widely the volume of this electric speed reducing case; And, described clutch shaft bearing 4c is moved on to behind housing 1 inside, because described clutch shaft bearing 4c is fully immersed in fluid, so its lubrication is good, and the clutch shaft bearing 4c of conventional construction can only lean on housing 1 heat radiation.

Described input shaft 2 is coaxially arranged with described output shaft 3, and the axis of the axis of described duplicate gear 4b and described output shaft 3 is arranged in parallel, and the axis of the axis of described duplicate gear 4b and described output shaft 3 is positioned in same level.Like this, described input gear 2a, described output gear 3a and described duplicate gear 4b are immersed in the fluid in described housing 1 all the time, lubrication better effects if.

Above-mentioned pivot pin 4a is provided with for locating the locating piece 4d of described clutch shaft bearing 4c.Described locating piece 4d is arranged on the shaft shoulder 4d1 on described pivot pin 4a or is sleeved on the supporting sleeve 4d2 on described pivot pin 4a.It is upper that the internal surface of described supporting sleeve 4d2 is sleeved on described pivot pin 4a, and the outer surface of described supporting sleeve 4d2 is inserted in described rear end cover 1b.As shown in Figure 1: described shaft shoulder 4d1 is arranged on the front end of described pivot pin 4a, its for location and installation the clutch shaft bearing 4c in described duplicate gear 4b front end; Described supporting sleeve 4d2 is arranged on the rear end of described pivot pin 4a, and it is the clutch shaft bearing 4c in described duplicate gear 4b rear end for location and installation; Being designed with is like this beneficial to the assembling of described duplicate gear mechanism 4.

Above-mentioned input shaft 2 is provided with the output shaft mounting hole 2b for output shaft described in plug-in mounting 3 near one end of output shaft 3, and described output shaft 3 is arranged in described output shaft mounting hole 2b by the second bearing 3b near one end of input shaft 2.Described the second bearing 3b is needle bearing.Between described input shaft 2 and output shaft 3, be provided with axle bumper 5.By adopting, described output shaft 3 is coaxially arranged on to the technological scheme in described input shaft 2, has avoided adding in housing 1 for the inner support of described input shaft 2 and output shaft 3 is installed, thereby provide condition for dwindling the volume of this electric speed reducing case; Meanwhile, such design more easily guarantees the coaxality of described input shaft 2 and output shaft 3.

Above-mentioned input shaft 2 is provided with the attachment hole 2c with keyway away from one end of output shaft 3, described attachment hole 2c is communicated with formation through hole with described output shaft mounting hole 2b, in described through hole, be provided with intermediate seal ring member 2d, described attachment hole 2c and described output shaft mounting hole 2b are coaxially arranged.By described attachment hole 2c is communicated with described output shaft mounting hole 2b, form through hole, like this, guaranteed further the coaxality of described input shaft 2 and output shaft 3, reduced processing and assembling difficulty.

The flank of above-mentioned input gear 2a is radially provided with the input gear oilhole 2a1 that runs through gear, the flank of described output gear 3a is radially provided with the output gear oilhole 3a1 that runs through gear, is provided with for being communicated with the passage 3a2 of described input gear oilhole 2a1 and described output gear oilhole 3a1 in described output shaft 3.By adopting, on described input shaft 2 and output shaft 3, offer respectively the technological scheme for oilhole and the passage of oil circulation, make the fluid can be in the interior abundant circulation of housing 1, thereby reach the object of each component in lubrication and cooling housing 1, simple in structure and lubrication is effective.

Above-mentioned input gear oilhole 2a1 is positioned at the position of upper corresponding described the second bearing 3b rear end of described input gear 2a, and described input gear oilhole 2a1 is communicated with described passage 3a2 by described the second bearing 3b.Described passage 3a2 and described output shaft 3 are coaxially arranged.

The rear tooth flank of above-mentioned duplicate gear 4b is radially provided with the duplicate gear oilhole 4b2 that runs through gear.By also add the oilhole for oil circulation on described duplicate gear 4b, each component of the cooling described duplicate gear of fluid energy sufficient lubrication mechanism 4 like this.

On above-mentioned input shaft 2, motor speed measuring sheave 6 is installed, the motor land 7 being arranged on described front cover 1a is provided with the speed transmission sensor 8 matching with described motor speed measuring sheave 6.Described speed transmission sensor 8 is contactless speed transmission sensor.Described motor speed measuring sheave 6 and speed transmission sensor 8 by adding, make this electric speed reducing case possess the function testing the speed.

Above-mentioned housing 1 surface is provided with radiating fin 9.The heat diffusion area that has increased this electric speed reducing case by the radiating fin 9 adding, has improved radiating efficiency.In this electric speed reducing case running, gear operation drives the fluid in housing 1 to be splashed on housing 1 inwall, the fluid being splashed on housing 1 carries out high efficiency and heat radiation by housing 1 and the radiating fin 9 being arranged on housing 1, thereby it is cooling fully that fluid is obtained, cooled fluid is got back to again in housing 1, and each component in housing 1 are dispelled the heat, so circulation.

During the work of this electric speed reducing case:

The gear motion of described input gear 2a and described duplicate gear 4b can constantly be pressed into fluid in described input gear oilhole 2a1, is pressed into fluid in described input gear oilhole 2a1 and can be automatically through axial play, enters described axle bumper 5 sideshakes to form pulsation lubricated;

The gear motion of described output gear 3a and described duplicate gear 4b also can constantly be pressed into fluid in described output gear oilhole 3a1, be pressed into fluid in the described output gear oilhole 3a1 through hole in described passage 3a2 enters described input gear 2a, because this through hole is sealed by described intermediate seal ring member 2d, so fluid is forced to flow to described needle bearing, and outwards extrude from the rolling gap of this needle bearing, form pulsation lubricated;

The gear motion of described duplicate gear 4b and described output gear 3a also can constantly be pressed into fluid in described duplicate gear oilhole 4b2, be pressed into the hole that the fluid in described duplicate gear oilhole 4b2 is flowed through between described duplicate gear 4b endoporus and described pivot pin 4a, more lubricated from the rolling gap outflow formation pulsation of described clutch shaft bearing 4c;

The lubricated greasy property that has effectively improved each transmission part of various pulsation, and the heat that component movement can be produced is above taken out of by pulsation oil mass, makes transmission part operation more steady, more reliable, and noise is less.

The present invention, by adopting the Double-gear structure of duplicate gear 4b replacement conventional construction, makes the more compact structure of this electric speed reducing case, and volume is less and reliable transmission is better; Inner by the two ends that described clutch shaft bearing 4c is moved on to described duplicate gear 4b from housing end plug, like this, guaranteeing that under the prerequisite of housing 1 same intensity, the distance between shafts between described pivot pin 4a and described output shaft 3 is programmable less, thereby has reduced widely the volume of this electric speed reducing case; Described clutch shaft bearing 4c is moved on to behind housing 1 inside, and because described clutch shaft bearing 4c is fully immersed in fluid, so its lubrication is good, and the clutch shaft bearing 4c of conventional construction can only lean on housing 1 heat radiation; By adopting, described output shaft 3 is coaxially arranged on to the technological scheme in described input shaft 2, has avoided adding in housing 1 for the inner support of described input shaft 2 and output shaft 3 is installed, thereby provide condition for dwindling the volume of this electric speed reducing case; Meanwhile, such design more easily guarantees the coaxality of described input shaft 2 and output shaft 3; By described attachment hole 2c is communicated with described output shaft mounting hole 2b, form through hole, like this, guaranteed further the coaxality of described input shaft 2 and output shaft 3, reduced processing and assembling difficulty; By adopting, on described input shaft 2 and output shaft 3, offer respectively the technological scheme for oilhole and the passage of oil circulation, make the fluid can be in the interior abundant circulation of housing 1, thereby reach the object of each component in lubrication and cooling housing 1, simple in structure and lubrication is effective; By also add the oilhole for oil circulation on described duplicate gear 4b, each component of the cooling described duplicate gear of fluid energy sufficient lubrication mechanism 4 like this; The heat diffusion area that has increased this electric speed reducing case on described housing 1 by the radiating fin 9 adding, has improved radiating efficiency, like this moving hot of the abundant cooling profit fluid of energy and each parts of mechanism.

The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (10)

  1. The electric speed reducing case of 1.Yi Zhongdai duplicate gear mechanism, the housing (1) that comprises band front cover (1a) and rear end cover (1b), the output shaft (3) of the input shaft (2) of tape input gear (2a) and band output gear (3a), described output shaft (3) is arranged on described rear end cover (1b), described input shaft (2) is arranged on described front cover (1a), it is characterized in that: in described housing (1), be provided with the duplicate gear mechanism (4) for be in transmission connection described input shaft (2) and described output shaft (3), described duplicate gear mechanism (4) comprises that two ends are arranged on respectively pivot pin (4a) and the duplicate gear (4b) on described front cover (1a) and rear end cover (1b), described duplicate gear (4b) two ends are arranged on described pivot pin (4a) by clutch shaft bearing (4c) respectively, described duplicate gear (4b) two ends are respectively equipped with the bearing mounting hole (4b1) for described clutch shaft bearing (4c) is installed, the outer ring of described clutch shaft bearing (4c) is arranged in described bearing mounting hole (4b1), and the inner ring of described clutch shaft bearing (4c) is arranged on described pivot pin (4a), the nipper of described duplicate gear (4b) and described input gear (2a) engagement, the rear tooth of described duplicate gear (4b) and described output gear (3a) engagement.
  2. 2. the electric speed reducing case with duplicate gear mechanism as claimed in claim 1, is characterized in that: described pivot pin (4a) is provided with the locating piece (4d) for locating described clutch shaft bearing (4c).
  3. 3. the electric speed reducing case with duplicate gear mechanism as claimed in claim 2, is characterized in that: described locating piece (4d) is for to be arranged on the shaft shoulder (4d1) on described pivot pin (4a) or to be sleeved on the supporting sleeve (4d2) on described pivot pin (4a).
  4. 4. the electric speed reducing case with duplicate gear mechanism as claimed in claim 3, is characterized in that: it is upper that the internal surface of described supporting sleeve (4d2) is sleeved on described pivot pin (4a), and the outer surface of described supporting sleeve (4d2) is inserted in described rear end cover (1b).
  5. 5. the electric speed reducing case with duplicate gear mechanism as claimed in claim 1 or 2, it is characterized in that: described input shaft (2) is provided with the output shaft mounting hole (2b) for output shaft described in plug-in mounting (3) near one end of output shaft (3), described output shaft (3) is arranged in described output shaft mounting hole (2b) by the second bearing (3b) near one end of input shaft (2).
  6. 6. the electric speed reducing case with duplicate gear mechanism as claimed in claim 5, is characterized in that: described the second bearing (3b) is needle bearing.
  7. 7. the electric speed reducing case with duplicate gear mechanism as claimed in claim 5, it is characterized in that: described input shaft (2) is provided with the attachment hole (2c) with keyway away from one end of output shaft (3), described attachment hole (2c) is communicated with formation through hole with described output shaft mounting hole (2b), in described through hole, be provided with intermediate seal ring member (2d), described attachment hole (2c) is coaxially arranged with described output shaft mounting hole (2b).
  8. 8. the electric speed reducing case with duplicate gear mechanism as claimed in claim 1 or 2, it is characterized in that: the flank of described input gear (2a) is radially provided with the input gear oilhole (2a1) that runs through gear, the flank of described output gear (3a) is radially provided with the output gear oilhole (3a1) that runs through gear, is provided with for being communicated with the passage (3a2) of described input gear oilhole (2a1) and described output gear oilhole (3a1) in described output shaft (3).
  9. 9. the electric speed reducing case with duplicate gear mechanism as claimed in claim 8, is characterized in that: described passage (3a2) is coaxially arranged with described output shaft (3).
  10. 10. the electric speed reducing case with duplicate gear mechanism as claimed in claim 8, is characterized in that: the rear tooth flank of described duplicate gear (4b) is radially provided with the duplicate gear oilhole (4b2) that runs through gear.
CN201310639199.8A 2013-12-02 2013-12-02 Electric reduction gearbox provided with duplicate gear mechanism CN103644289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310639199.8A CN103644289A (en) 2013-12-02 2013-12-02 Electric reduction gearbox provided with duplicate gear mechanism

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Application Number Priority Date Filing Date Title
CN201310639199.8A CN103644289A (en) 2013-12-02 2013-12-02 Electric reduction gearbox provided with duplicate gear mechanism

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CN103644289A true CN103644289A (en) 2014-03-19

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104482188A (en) * 2014-11-24 2015-04-01 盛瑞传动股份有限公司 Speed changing box
CN104675927A (en) * 2015-02-09 2015-06-03 绍兴金道齿轮箱有限公司 Electric vehicle, speed reduction box, differential assembly and conical gear
CN105240500A (en) * 2015-10-21 2016-01-13 安徽星瑞齿轮传动有限公司 Automobile speed reducer
CN107355527A (en) * 2017-06-30 2017-11-17 太仓宝达齿条有限公司 A kind of oiling gear
CN108223769A (en) * 2016-12-22 2018-06-29 上海汽车集团股份有限公司 Automobile double-motor power system, gearbox and automobile

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Publication number Priority date Publication date Assignee Title
JP2001124155A (en) * 1999-10-28 2001-05-08 Shibaura Densan Kk Electric motor using hypoid gear type speed reducer
CN2689577Y (en) * 2004-02-20 2005-03-30 牛玉环 Duplexing gearing decelerating electric motors
CN201875106U (en) * 2010-12-01 2011-06-22 赣州五环机器有限责任公司 Reduction box of battery fork lift truck
CN203594764U (en) * 2013-12-02 2014-05-14 淅川县顺隆弹簧有限公司 Electric reduction gearbox with duplicate gear mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001124155A (en) * 1999-10-28 2001-05-08 Shibaura Densan Kk Electric motor using hypoid gear type speed reducer
CN2689577Y (en) * 2004-02-20 2005-03-30 牛玉环 Duplexing gearing decelerating electric motors
CN201875106U (en) * 2010-12-01 2011-06-22 赣州五环机器有限责任公司 Reduction box of battery fork lift truck
CN203594764U (en) * 2013-12-02 2014-05-14 淅川县顺隆弹簧有限公司 Electric reduction gearbox with duplicate gear mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104482188A (en) * 2014-11-24 2015-04-01 盛瑞传动股份有限公司 Speed changing box
CN104675927A (en) * 2015-02-09 2015-06-03 绍兴金道齿轮箱有限公司 Electric vehicle, speed reduction box, differential assembly and conical gear
CN104675927B (en) * 2015-02-09 2017-11-24 绍兴金道齿轮箱有限公司 Electric vehicle, reduction box, differential assembly and angular wheel
CN105240500A (en) * 2015-10-21 2016-01-13 安徽星瑞齿轮传动有限公司 Automobile speed reducer
CN108223769A (en) * 2016-12-22 2018-06-29 上海汽车集团股份有限公司 Automobile double-motor power system, gearbox and automobile
CN107355527A (en) * 2017-06-30 2017-11-17 太仓宝达齿条有限公司 A kind of oiling gear

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