CN109356997A - A kind of novel pure electric speed reducing case - Google Patents
A kind of novel pure electric speed reducing case Download PDFInfo
- Publication number
- CN109356997A CN109356997A CN201811324780.XA CN201811324780A CN109356997A CN 109356997 A CN109356997 A CN 109356997A CN 201811324780 A CN201811324780 A CN 201811324780A CN 109356997 A CN109356997 A CN 109356997A
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- gear
- front housing
- planet carrier
- lubrication
- cavity
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- 230000009467 reduction Effects 0.000 claims abstract description 80
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000005461 lubrication Methods 0.000 claims description 53
- 239000003921 oil Substances 0.000 claims description 50
- 230000001050 lubricating effect Effects 0.000 claims description 18
- 239000010687 lubricating oil Substances 0.000 claims description 12
- 239000012208 gear oil Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000002457 bidirectional effect Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02008—Gearboxes; Mounting gearing therein characterised by specific dividing lines or planes of the gear case
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to a kind of novel pure electric speed reducing casees, including a reduction box casing, the reduction box casing includes mutually matched reduction gearbox front housing, an end cover of reduction box, and the cavity of appearance transmission parts installation and work is collectively formed after reduction gearbox front housing merges with end cover of reduction box；The transmission parts include output shaft, input shaft and planetary mechanism, the planetary mechanism includes the sun gear with outer toothing of coaxial arrangement, the gear ring with internal tooth arrangement, several planetary gears being meshed with toothing inside and outside gear ring and sun gear are provided between sun gear and gear ring, the end of each planetary gear linkage is realized by planet carrier connection, the planet carrier and output shaft are integrally formed, and sun gear is connected with input shaft.The present invention has the advantages that can effectively ensure that the coaxial precision of the two by the way that planet carrier and output shaft are used integrally formed mode, avoiding same axis deviation, and also reduce machining accuracy and assembly precision.
Description
Technical field
Auto parts and components manufacture field of the present invention, specifically a kind of novel pure electric speed reducing case.
Background technique
Planet-gear speed reducer is also known as planetary reducer, servo deceleration machine.In speed reducer family, planetary reducer with
Many advantages, such as its is small in size, and transmission efficiency is high, and reduction range is wide, and precision is high, and it is widely used in servo motor, stepping electricity
In the transmission systems such as machine, direct current generator.It is exactly that being mainly used to, which reduces revolving speed, increases under the premise of guaranteeing precision drive that it, which is acted on,
Large torque and reduction load/motor rotary inertia ratio.
For example, just referring to a kind of planetary reducer in patent CN108019472A, the right end of cabinet is fixed with end
Lid, and the inner face center of end cap is fixedly installed with fixed gear；Pacified in the middle part of the inner cavity of cabinet by 3rd bearing, fourth bearing
Equipped with planetary wheel carrier, the inner cavity left end of cabinet is equipped with output shaft gear by five bearing of the mat woven of fine bamboo strips；Input gear axle passes through first axle
It holds and is inserted into one heart with second bearing in the center cavity of the fixed gear of end cap and output shaft gear；It is symmetrically installed on planetary wheel carrier
There are first planetary gear, the second planetary gear and third planet gear composition, and first planetary gear is engaged with fixed gear, the
Two planetary gears are engaged with input gear axle, and third planet gear is engaged with output shaft gear；Power is inputted from input gear axle,
Output shaft gear output.Structure of the invention is compact, and speed ratio is big, and input and output are driven with one heart, transmission accuracy with higher and compared with
High mechanical efficiency.
Planetary reducer in above structure there is certain defect: its planet carrier and output shaft using point
Body formula structure, and be mounted on the inner wall of cabinet by bearing, during being worked, for planet carrier with
It is the need to ensure that concentricity is consistent between output shaft, and uses such structure type, when being assembled, it is necessary to planet
There can be very high concentricity between frame, output shaft and bearing, the required precision of assembly is with regard to relatively high, in addition, for three
Machining accuracy equally also have a very high requirement, the difficulty of processing is also just bigger accordingly；In addition, special due to its structure
Property, that is, the gear for being intermeshed cooperation can be relatively more, therefore during use, can be frequently necessary to moisten these gears
It is sliding, to ensure the smooth of gear set work.And traditional mode is the gear needed by multiple oilholes to different location
Group is lubricated, and oilhole distributing position is more, and oil circuit is complicated, and lubrication is inconvenient.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind can reduce assembly precision and difficulty of processing requirement, facilitates profit
Sliding novel pure electric speed reducing case.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of novel pure electric speed reducing case, innovative point exist
In: including
One reduction box casing, the reduction box casing include mutually matched reduction gearbox front housing, an end cover of reduction box, are being slowed down
There is a T shape inner cavity in case front housing, be bolted between the reduction gearbox front housing and end cover of reduction box, and in reduction gearbox
The cavity of appearance transmission parts installation and work is collectively formed in front housing after merging with end cover of reduction box；
The transmission parts include output shaft, input shaft and planetary mechanism, are opened respectively on end cover of reduction box and reduction gearbox front housing
There is the through-hole for holding input shaft, output shaft stretching, the cone of a pair of of fitting reduction gearbox front housing inner cavity is further sleeved on the outer wall of output shaft
Bearing, the planetary mechanism include the sun gear with outer toothing of coaxial arrangement, the gear ring with internal tooth arrangement, gear ring pressure
Mounted in the inner wall of reduction gearbox front housing, it is provided with and several is mutually nibbled with toothing inside and outside gear ring and sun gear between sun gear and gear ring
The planetary gear of conjunction, the end of each planetary gear by planet carrier connection realize linkage, the planet carrier and output shaft one at
Type, sun gear are connected with input shaft, and the rolling of a pair of of fitting planet carrier inner wall, end cap inner wall is further sleeved on the outer wall of input shaft
Sub- bearing is further sleeved with a pair of of roller bearing on the outer wall of input shaft, is located at close to each other one in output shaft and input shaft
Side is respectively provided with a lubrication cavity A, a lubrication cavity B, and the bore for lubricating cavity A is greater than the size of the inner ring of roller bearing,
Also it is located at roller bearing in input shaft with the lubrication cavity A lubrication hole F being connected in the outside that output shaft is located at cone bearing
Outside is also provided with the oil outlet being connected with lubrication cavity B, and the planetary gear includes central axis and is sleeved on outside central axis
Gear is rotated, there is a lubrication cavity C close to the side of planet carrier in central axis, while having and profit on the side wall of central axis
The lubrication hole D that sliding cavity C is connected, is provided on planet carrier with the strong C phase of lubrication hole on the central axis of each planetary gear one by one
The lubrication hole E of corresponding connection；
The lubricating system includes an oil leab, and the oil inlet of the oil leab is connected with inlet nozzle, and oil leab goes out
Hydraulic fluid port extends between two cone bearings, and a portion lubricating oil flows into output shaft from the gap of one of cone bearing
In interior lubrication cavity A, then separately flows into lubrication cavity B and enter between sun gear and input shaft by roller bearing and formed
Branch oil duct is lubricated, another part lubricating oil flows into planet carrier from the gap of another cone bearing, and from the lubrication on planet carrier
Hole E enters in the central axis of planetary gear, and goes out to form lubrication main oil gallery from central axis, is additionally provided with gear oil in the side of planet carrier
Mechanism.
Further, the connection between the reduction gearbox front housing and end cover of reduction box are as follows: in end cover of reduction box close to deceleration
There is the ring-shaped of an insertion reduction gearbox front housing inner cavity to install protrusion for one end of case front housing, while on the inner wall of reduction gearbox front housing
With cyclic annular positioning groove corresponding with installation protrusion.
Further, it is connected between the sun gear and input shaft by spline.
Further, the gear oil machine structure are as follows: be provided with one to output axis direction close to one end of output shaft in planet carrier
The cricoid oil scraper ring extended, and oil scraper ring is located at the outside of the central axis of each planetary gear, so that the end face of planet carrier
Form a cone structure.
The present invention has the advantages that in the present invention, by the way that planet carrier and output shaft are used integrally formed mode, energy
Enough effective coaxial precision for guaranteeing the two, avoid same axis deviation, and also reduce machining accuracy and assembly precision.
For the connection between reduction gearbox front housing and end cover of reduction box, using matching between installation protrusion and positioning groove
It closes, so that the quick location and installation between reduction gearbox front housing and end cover of reduction box is realized, moreover, such assembly method, so that
Remaining part is being installed, such as protrusion can be installed with positioning groove when output shaft, input shaft with point peace on the basis of chalaza
Dress, facilitates the assembly of global facility.
By the way that gear ring to be fitted on the inner wall of reduction gearbox front housing, the concentricity of planet carrier and gear ring is improved, effectively
The coaxial precision for guaranteeing the two, avoids same axis deviation, and also reduce difficulty of processing and assembly difficulty.
For sun gear centering mode by the way of being connect with input shaft by spline, enable sun gear have compared with
Big floating space, to ensure that planetary gear train is loaded uniformly.
To reduction box organizations carry out oil duct Overall Reconstruction, traditional lubricating system is improved, design main oil gallery with
Branch oil duct Bidirectional lubricating improves lubricating efficiency by main oil gallery and branch oil duct Bidirectional lubricating.
It is then in the gap for avoiding lubricating oil between planet carrier and speed reducer front housing inner wall for keeping off the setting of oil machine structure
It flows directly out, while cooperating lubrication cavity C, lubrication hole E, in the case where running at high speed, oil liquid is flowed because of the effect of centrifugal force along the conical surface
And it is forced into planetary gear pin hole, and then the lubricant effect of needle bearing and anti-wear gasket is more preferable.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the schematic diagram of novel pure electric speed reducing case of the invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the B-B cross-sectional view of Fig. 2.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
A kind of novel pure electric speed reducing case lubricating system as shown in FIG. 1 to FIG. 3, reduction gearbox include
One reduction box casing, reduction box casing includes mutually matched reduction gearbox front housing 1, an end cover of reduction box 2, in reduction gearbox
There is a T shape inner cavity in front housing 1, connected between reduction gearbox front housing 1 and end cover of reduction box 2 by bolt 3, and before reduction gearbox
The cavity of appearance transmission parts installation and work is collectively formed in shell 1 after merging with end cover of reduction box 2.
Connection between reduction gearbox front housing 1 and end cover of reduction box 2 are as follows: in end cover of reduction box 2 close to the one of reduction gearbox front housing 1
Hold have one insertion 1 inner cavity of reduction gearbox front housing ring-shaped installation protrusion 4, while on the inner wall of reduction gearbox front housing 1 have with
The corresponding cyclic annular positioning groove 5 of installation protrusion 4, is additionally provided with sealing between installation protrusion 4 and the inner wall of reduction gearbox front housing 1
Circle, to ensure the sealing effect between reduction gearbox front housing 1 and end cover of reduction box 2.For reduction gearbox front housing 1 and end cover of reduction box 2
Between connection, using installation protrusion 4 and positioning groove 5 between cooperation, to realize reduction gearbox front housing 1 and reduction gearbox end
Quick location and installation between lid 2, moreover, such assembly method, so that in installation remaining part, such as output shaft, input shaft
When protrusion and positioning groove can be installed install with being put on the basis of chalaza, facilitate the assembly of global facility.
Transmission parts include output shaft 7a, input shaft 6 and planetary mechanism, are divided on end cover of reduction box 2 and reduction gearbox front housing 1
It is not provided with the through-hole for holding input shaft 6, output shaft 7a stretching, a pair of of fitting reduction gearbox front housing 1 is further sleeved on the outer wall of output shaft 6
The cone bearing 8 of inner cavity, planetary mechanism include the sun gear 9 with outer toothing of coaxial arrangement, the gear ring with internal tooth arrangement
10, gear ring 10 is fitted in the inner wall of reduction gearbox front housing 1, by being fitted in gear ring 10 on the inner wall of reduction gearbox front housing, improves
The concentricity of planet carrier and gear ring, the effective coaxial precision both guaranteed, avoids same axis deviation, and also reduce processing
Difficulty and assembly difficulty are provided between sun gear 9 and gear ring 10 and several mutually nibble with toothing inside and outside gear ring 10 and sun gear 9
The end of the planetary gear 11 of conjunction, each planetary gear 11 linkage, planet carrier 7b and output shaft 7a are realized by a planet carrier 7b connection
Be integrally formed, sun gear 9 is connected with input shaft 6, be further sleeved on the outer wall of input shaft 6 a pair be bonded planet carrier 7b inner wall,
The roller bearing 13 of 2 inner wall of end cover of reduction box.By the way that planet carrier 7b and output shaft 7a is used integrally formed mode, Neng Gouyou
The coaxial precision for guaranteeing the two of effect, avoids same axis deviation, and also reduce machining accuracy and assembly precision.
It is connected between sun gear 9 and input shaft 6 by spline.The centering mode of sun gear 9 is used logical with input shaft 6
The mode for crossing spline connection, enables sun gear 9 to have biggish floating space, to ensure that planetary gear train is loaded uniformly.
It is located at side close to each other in output shaft 7a and input shaft 6 and is respectively provided with a lubrication cavity A21, a lubrication cavity
B22, and the bore for lubricating cavity A21 is greater than the size of the inner ring of roller bearing 13, is located at the outside of cone bearing 8 in output shaft 7a
There are also the lubrication hole F26 being connected with lubrication cavity A21, are also provided with and lubricate in the outside that input shaft 6 is located at roller bearing 13
The oil outlet 27 that cavity B22 is connected, planetary gear 11 include central axis 28 and the rotation gear 29 being sleeved on outside central axis 28,
There is a lubrication cavity C 24 close to the side of planet carrier 7b in central axis 28, while having and profit on the side wall of central axis 28
The lubrication hole D30 that sliding cavity C 24 is connected is provided with empty with the lubrication on the central axis 28 of each planetary gear 11 on planet carrier 7b
Chamber C24 phase corresponds the lubrication hole E31 of connection.
Lubricating system includes a lubrication food tray 25, and the oil inlet of the lubrication food tray 25 is connected with inlet nozzle 25, lubricating oil
The oil outlet 32 of disk 25 extends between two cone bearings 8, and a portion lubricating oil is from the gap of one of cone bearing 8
It is middle to flow into the lubrication cavity A21 in output shaft 7a, then separately flow into lubrication cavity B22 and enter too by roller bearing 13
Lubrication branch oil duct is formed between sun wheel 9 and input shaft 6, lubricating lubricating oil in cavity B22 can flow out from oil outlet 27, another part
Lubricating oil flows into planet carrier 7b from the gap of another cone bearing 8, and enters planetary gear from the lubrication hole E31 on planet carrier 7b
In the lubrication cavity C 24 of 11 central axis 28, and from the lubrication hole D30 of central axis 28 outflow to central axis 28 and rotation gear 29
Be lubricated, formed lubrication main oil gallery, while the parts of lubricating oil can with the rotation of planetary mechanism, then from planet carrier 7b with subtract
It is flow in gap between the inner cavity of fast case front housing 1 in lubrication food tray 25 and realizes circulation, be additionally provided in the side of planet carrier 7b
Keep off oil machine structure.By improving to traditional lubricating system, pass through a lubrication food tray and lubrication branch oil duct, lubrication main oil gallery
The cooperation of two branch oil ducts, and the effect of centrifugal force that while being rotated using planetary mechanism is generated, only need a grease tap can be right
All gear sets in reduction gearbox are lubricated, and are reduced grease tap and lubricant passage way, are facilitated lubrication.Reduction box organizations are carried out
Oil duct Overall Reconstruction improves traditional lubricating system, designs main oil gallery and branch oil duct Bidirectional lubricating, passes through main oil gallery
With branch oil duct Bidirectional lubricating, lubricating efficiency is improved.
Keep off oil machine structure are as follows: one end of output shaft 7a is provided with a ring extended to the direction output shaft 7a in planet carrier 7b
The oil scraper ring 23 of shape, and oil scraper ring 23 is located at the outside of the central axis of each planetary gear 11.For keeping off the setting of oil machine structure, it is then
Avoid lubricating oil from flowing directly out from the gap between 1 inner wall of planet carrier 7b and speed reducer front housing, at the same cooperate lubrication cavity C,
Lubrication hole E, in the case where running at high speed, oil liquid is forced into planetary gear pin hole because the effect of centrifugal force is flowed along the conical surface, and then rolls
The lubricant effect of needle bearing and anti-wear gasket is more preferable.
Due to the pump oil effect of cone bearing, pressure can be formed by cavity between oil sealing and tapered roller bearing, Gu Chuantong is set
Meter can increase special oil circuit on shell, and lubricating oil is led back to enclosure interior.The structure was radially increased in planet gimbal axis
Oilhole solves to undertake a part of lubricating action to internal ball bearing while oil is imported internal by cone bearing.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of novel pure electric speed reducing case, it is characterised in that: including
One reduction box casing, the reduction box casing include mutually matched reduction gearbox front housing, an end cover of reduction box, are being slowed down
There is a T shape inner cavity in case front housing, be bolted between the reduction gearbox front housing and end cover of reduction box, and in reduction gearbox
The cavity of appearance transmission parts installation and work is collectively formed in front housing after merging with end cover of reduction box；
The transmission parts include output shaft, input shaft and planetary mechanism, are opened respectively on end cover of reduction box and reduction gearbox front housing
There is the through-hole for holding input shaft, output shaft stretching, the cone of a pair of of fitting reduction gearbox front housing inner cavity is further sleeved on the outer wall of output shaft
Bearing, the planetary mechanism include the sun gear with outer toothing of coaxial arrangement, the gear ring with internal tooth arrangement, gear ring pressure
Mounted in the inner wall of reduction gearbox front housing, it is provided with and several is mutually nibbled with toothing inside and outside gear ring and sun gear between sun gear and gear ring
The planetary gear of conjunction, the end of each planetary gear by planet carrier connection realize linkage, the planet carrier and output shaft one at
Type, sun gear are connected with input shaft, and the rolling of a pair of of fitting planet carrier inner wall, end cap inner wall is further sleeved on the outer wall of input shaft
Sub- bearing is further sleeved with a pair of of roller bearing on the outer wall of input shaft, is located at close to each other one in output shaft and input shaft
Side is respectively provided with a lubrication cavity A, a lubrication cavity B, and the bore for lubricating cavity A is greater than the size of the inner ring of roller bearing,
Also it is located at roller bearing in input shaft with the lubrication cavity A lubrication hole F being connected in the outside that output shaft is located at cone bearing
Outside is also provided with the oil outlet being connected with lubrication cavity B, and the planetary gear includes central axis and is sleeved on outside central axis
Gear is rotated, there is a lubrication cavity C close to the side of planet carrier in central axis, while having and profit on the side wall of central axis
The lubrication hole D that sliding cavity C is connected, is provided on planet carrier with the strong C phase of lubrication hole on the central axis of each planetary gear one by one
The lubrication hole E of corresponding connection；
The lubricating system includes an oil leab, and the oil inlet of the oil leab is connected with inlet nozzle, and oil leab goes out
Hydraulic fluid port extends between two cone bearings, and a portion lubricating oil flows into output shaft from the gap of one of cone bearing
In interior lubrication cavity A, then separately flows into lubrication cavity B and enter between sun gear and input shaft by roller bearing and formed
Branch oil duct is lubricated, another part lubricating oil flows into planet carrier from the gap of another cone bearing, and from the lubrication on planet carrier
Hole E enters in the central axis of planetary gear, and goes out to form lubrication main oil gallery from central axis, is additionally provided with gear oil in the side of planet carrier
Mechanism.
2. novel pure electric speed reducing case according to claim 1, it is characterised in that: the reduction gearbox front housing and reduction gearbox end
Connection between lid are as follows: there is in end cover of reduction box close to one end of reduction gearbox front housing the annular of an insertion reduction gearbox front housing inner cavity
Shape installation protrusion, while there is cyclic annular positioning groove corresponding with installation protrusion on the inner wall of reduction gearbox front housing.
3. novel pure electric speed reducing case according to claim 1, it is characterised in that: lead between the sun gear and input shaft
Cross spline connection.
4. novel pure electric speed reducing case according to claim 1, it is characterised in that: the gear oil machine structure are as follows: in planet carrier
One end of output shaft is provided with a cricoid oil scraper ring extended to output axis direction, and oil scraper ring is located at each planetary gear
Central axis outside so that planet carrier end face formed a cone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324780.XA CN109356997B (en) | 2018-11-08 | 2018-11-08 | Novel pure electric reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324780.XA CN109356997B (en) | 2018-11-08 | 2018-11-08 | Novel pure electric reduction gearbox |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356997A true CN109356997A (en) | 2019-02-19 |
| CN109356997B CN109356997B (en) | 2024-09-06 |
Family
ID=65344664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811324780.XA Active CN109356997B (en) | 2018-11-08 | 2018-11-08 | Novel pure electric reduction gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356997B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728050A (en) * | 2019-10-28 | 2021-04-30 | 常州易控汽车电子股份有限公司 | Coaxial planetary gear reducer with shell cooling function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220730A (en) * | 1999-02-01 | 2000-08-08 | Daihatsu Motor Co Ltd | Lubrication structure of epicyclic gear device |
| CN201509123U (en) * | 2009-08-31 | 2010-06-16 | 比亚迪股份有限公司 | A hub motor system and its lubrication system |
| CN205479154U (en) * | 2016-03-01 | 2016-08-17 | 彭世昌 | Planet gear of electricelectric motor car |
| CN206439354U (en) * | 2016-12-27 | 2017-08-25 | 綦江齿轮传动有限公司 | Hub reduction planetary mechanism speed changer for pure electric system |
| CN206439344U (en) * | 2016-12-20 | 2017-08-25 | 中国第一汽车股份有限公司 | Odd-side planetary gear train assembly after a kind of heavy multi-speed transmission |
| CN209818691U (en) * | 2018-11-08 | 2019-12-20 | 江苏汤臣汽车零部件有限公司 | Novel pure electric reduction gearbox |
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| CN206439344U (en) * | 2016-12-20 | 2017-08-25 | 中国第一汽车股份有限公司 | Odd-side planetary gear train assembly after a kind of heavy multi-speed transmission |
| CN206439354U (en) * | 2016-12-27 | 2017-08-25 | 綦江齿轮传动有限公司 | Hub reduction planetary mechanism speed changer for pure electric system |
| CN209818691U (en) * | 2018-11-08 | 2019-12-20 | 江苏汤臣汽车零部件有限公司 | Novel pure electric reduction gearbox |
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| CN112728050A (en) * | 2019-10-28 | 2021-04-30 | 常州易控汽车电子股份有限公司 | Coaxial planetary gear reducer with shell cooling function |
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