CN108426005A - Two-speed gearbox - Google Patents
Two-speed gearbox Download PDFInfo
- Publication number
- CN108426005A CN108426005A CN201810333937.9A CN201810333937A CN108426005A CN 108426005 A CN108426005 A CN 108426005A CN 201810333937 A CN201810333937 A CN 201810333937A CN 108426005 A CN108426005 A CN 108426005A
- Authority
- CN
- China
- Prior art keywords
- friction plate
- plunger
- planet carrier
- clutch
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 239000000969 carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses two-speed gearboxs,Including the first planetary gear speed reducing mechanism and the second planetary gear speed reducing mechanism,First planetary gear speed reducing mechanism includes the first sun gear,First planet carrier,First gear ring and the first plunger,The first planetary gear being meshed with the first sun gear and the first gear ring is provided in first planet carrier,First sun gear is connected with input shaft,First arrangement of clutch includes the first friction plate and the second friction plate,First friction plate is fixed on the first sun gear,Second friction plate is fixed in first planet carrier,First plunger is slidably connected on outer casing inner wall,The first spring to the first friction plate by the first plunger top is provided on first plunger,The first hydraulic channel is provided on shell,First plunger includes first part,Second part and bearing,First part is slidably connected inside the shell,Bearing outer ring is fixed on the inner ring of first part,The inner ring of bearing is connected to the outer ring of second part.
Description
Technical field
The present invention relates to a kind of speed reducers, more particularly to there are two types of the speed reducers of reduction ratio for tool.
Background technology
General speed reducer all only has a kind of fixed reduction ratio, this changes bigger occasion not in many output torques
It is applicable in.Certainly also there is a speed reducer with a variety of gear ratio, such as the gearbox of automobile, but this structure is all very complicated,
It also only rests in a small number of enterprise's hands at present.
A kind of tool is disclosed in another application before me, and there are two types of the speed reducers of gear ratio, pass through and lock the first season
The first gear ring of first planet carrier or locking of planetary gear construction, may be implemented two different reduction ratio.But this subtract
Fast machine there are a defect, be exactly first planet carrier unlock and and the first gear ring lock when, first planet carrier inner ring and
Sealing ring meeting on outer ring and opposite rotation occurs between sealing surface, ring wear is quickly, it is therefore necessary to be improved.
Invention content
For the deficiencies in the prior art, the present invention provides a kind of two-speed gearboxs, can realize two kinds of speed changes
Than, and will not be worn positioned at sealing ring.
The present invention is achieved through the following technical solutions：Two-speed gearbox, including the first planetary gear speed reducing mechanism and second
Planetary gear speed reducing mechanism, first planetary gear speed reducing mechanism include the first sun gear, first planet carrier, the first gear ring and the first column
It fills in, the first planetary gear being meshed with first sun gear and first gear ring is provided in the first planet carrier,
First sun gear is connected with input shaft, and first arrangement of clutch includes the first friction plate and the second friction plate, and described the
One friction plate is fixed on first sun gear, and second friction plate is fixed in the first planet carrier, and described first
Plunger is slidably connected on the outer casing inner wall, is provided on first plunger and first plunger top is rubbed to described first
First spring of pad is provided with the first hydraulic channel on the shell, in normal state, in the effect of first spring
Under, first plunger holds out against the first friction plate and the second friction plate, and the first planet carrier is locked in first sun
On wheel, after being sent into hydraulic oil to first hydraulic channel, first plunger leaves first arrangement of clutch, and described first
Planet carrier unlocks, and first plunger includes first part, second part and bearing, and the first part is slidably connected at described
In shell, the bearing outer ring is fixed on the inner ring of the first part, and the inner ring of the bearing is connected to the second part
Outer ring, be each provided with one positioned at first hydraulic channel both sides on the surface that the first part and the shell are in contact
A sealing ring.
In above-mentioned technical proposal, it is preferred that further include the second planetary gear speed reducing mechanism, second planetary gear speed reducing mechanism includes
First sun gear, the second planet carrier and the second gear ring are provided on second planet carrier and second sun gear and described
The second planetary gear that second gear ring is meshed, second sun gear are connected with the first planet carrier, second planet
Frame is connected with output shaft, further includes the second arrangement of clutch, and second arrangement of clutch is responsible for locking first gear ring.
In above-mentioned technical proposal, it is preferred that second arrangement of clutch is friction disk clutch.
In above-mentioned technical proposal, it is preferred that second arrangement of clutch includes third friction plate and the 4th friction plate, described
Third friction plate is fixed on first gear ring and is connected, and the 4th friction plate is connected with shell.
In above-mentioned technical proposal, it is preferred that first friction plate and second friction plate have a multi-disc, described in multi-disc
One friction plate and the spaced setting of the second friction plate, the third friction plate and the 4th friction plate have multi-disc, more
Third friction plate described in piece and the spaced setting of the 4th friction plate.
In above-mentioned technical proposal, it is preferred that second arrangement of clutch further includes the second plunger, the second plunger sliding
It is connected on the outer casing inner wall, by second plunger top to the third friction plate is provided on second plunger
Two springs are provided with the second hydraulic channel on the shell, described under the action of the second spring in normal state
Second plunger holds out against third friction plate and the 4th friction plate, second planet carrier locking on the housing, to described the
After two hydraulic channels are sent into hydraulic oil, second plunger leaves second arrangement of clutch, the second planet carrier unlock.
The present invention has the advantages that：First plunger is divided into two parts by the present invention, then all pacifies sealing ring
In the first part that need not be rotated, this ensures that speed reducer is in the running, sealing ring will not be worn, and be greatly prolonged
The service life of sealing ring.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the close-up schematic view at A in Fig. 1.
Fig. 3 is the close-up schematic view at B in Fig. 1.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings：
Referring to Fig. 1 to Fig. 3, two-speed gearbox, including the first planetary gear speed reducing mechanism 1 and the second planetary gear speed reducing mechanism 2, described first
Planetary gear speed reducing mechanism 1 includes the first sun gear 11, first planet carrier 12 and the first gear ring 13, is arranged in the first planet carrier 12
Have the first planetary gear 14 being meshed with first sun gear 11 and first gear ring 13, first sun gear 11 with
Input shaft is connected.
Second planetary gear speed reducing mechanism 2 includes the first sun gear 21, the second planet carrier 22 and the second gear ring 23, and described the
The second planetary gear 24 being meshed with second sun gear 21 and second gear ring 23, institute are provided on two planet carriers 22
It states the second sun gear 21 with the first planet carrier 12 to be connected, second planet carrier 22 is connected with output shaft.
Further include the first arrangement of clutch 3 and the second arrangement of clutch 4, first arrangement of clutch is responsible for locking the first row
Carrier, second arrangement of clutch are responsible for locking first gear ring.First arrangement of clutch and second arrangement of clutch
All it is friction disk clutch.
First arrangement of clutch 3 includes the first friction plate 31 and the second friction plate 32, first friction plate 31 and institute
Stating the second friction plate 32 has a multi-disc, 32 spaced setting of the first friction plate 31 and second friction plate described in multi-disc.It is described
First friction plate 31 is fixed on first sun gear 11, and second friction plate 32 is fixed on the first planet carrier 12
On, first arrangement of clutch 3 further includes the first plunger 33, and first plunger 33 is slidably connected on 5 inner wall of shell, described
It is provided on first plunger 33 and first plunger 33 is pushed up into the first spring 34 to first friction plate 31, the shell 5
On be provided with the first hydraulic channel 51, first plunger 33 includes first part 331, second part 332 and bearing 333, institute
It states first part 331 to be slidably connected in the shell 5,333 outer ring of the bearing is fixed on the interior of the first part 331
Circle, the inner ring of the bearing 333 are connected to the outer ring of the second part 332,5 phase of the first part 331 and the shell
On the surface of contact a sealing ring 6 is each provided with positioned at 51 both sides of the first hydraulic channel.In normal state, described
Under the action of first spring 34, the second part 332 holds out against the first friction plate 31 and the second friction plate 32, the first row
Carrier 22 is locked on first sun gear 11, to first hydraulic channel be sent into hydraulic oil after, first plunger from
Open first arrangement of clutch, the first planet carrier unlock.
Second arrangement of clutch 4 includes third friction plate 41 and the 4th friction plate 42, the third friction plate 41 and institute
Stating the 4th friction plate 42 has a multi-disc, third friction plate and the spaced setting of the 4th friction plate described in multi-disc.The third
Friction plate 41 is fixed on first gear ring 13 and is connected, and the 4th friction plate 42 is connected with shell 5.Second arrangement of clutch
4 further include the second plunger 43, and second plunger 43 is slidably connected on 5 inner wall of the shell, is set on second plunger 43
It is equipped with and second plunger 43 is pushed up into second spring 44 to the third friction plate 42, the second liquid is provided on the shell 5
Pressure passageway 52, in normal state, under the action of the second spring, second plunger rubs third friction plate and the 4th
Pad is held out against, second planet carrier locking on the housing, after being sent into hydraulic oil to second hydraulic channel, described the
Two plungers leave second arrangement of clutch, the second planet carrier unlock.
In use, if we lock first planet carrier, the unlock of the first gear ring, at this time, the first planetary gear speed reducing mechanism
Just do not work, directly the rotating speed of input shaft be output on the second planetary gear speed reducing mechanism, this be the reduction ratio of deceleration mechanism just
It is the reduction ratio of the second planetary gear speed reducing mechanism.If we unlock first planet carrier, and the first gear ring is locked, at this time,
The rotating speed of system output is exactly the reduction ratio that the reduction ratio of the first planetary gear speed reducing mechanism is multiplied by the second planetary gear reducing mechanism.Cause
This our this set system can easily realize two kinds of reduction ratio.
Claims (6)
1. two-speed gearbox, including the first planetary gear speed reducing mechanism and the second planetary gear speed reducing mechanism, first planetary gear speed reducing mechanism
Including the first sun gear, first planet carrier, the first gear ring and the first plunger, it is provided in the first planet carrier and described first
The first planetary gear that sun gear and first gear ring are meshed, first sun gear are connected with input shaft, and described first
Arrangement of clutch includes the first friction plate and the second friction plate, and first friction plate is fixed on first sun gear, described
Second friction plate is fixed in the first planet carrier, and first plunger is slidably connected on the outer casing inner wall, and described
It is provided with the first spring to first friction plate by first plunger top on one plunger, first is provided on the shell
Hydraulic channel, in normal state, under the action of first spring, first plunger rubs the first friction plate and second
Pad is held out against, and the first planet carrier is locked on first sun gear, after being sent into hydraulic oil to first hydraulic channel,
First plunger leaves first arrangement of clutch, the first planet carrier unlock, it is characterised in that：The first plunger packet
First part, second part and bearing are included, the first part is slidably connected in the shell, and the bearing outer ring is fixed on
The inner ring of the first part, the inner ring of the bearing are connected to the outer ring of the second part, the first part and described
On the surface that shell is in contact a sealing ring is each provided with positioned at first hydraulic channel both sides.
2. two-speed gearbox according to claim 1, it is characterised in that：Further include the second planetary gear speed reducing mechanism, described
Two planetary gear speed reducing mechanisms include the first sun gear, the second planet carrier and the second gear ring, are provided on second planet carrier and institute
State the second planetary gear that the second sun gear and second gear ring are meshed, second sun gear and the first planet carrier
It is connected, second planet carrier is connected with output shaft, further includes the second arrangement of clutch, and second arrangement of clutch is responsible for locking institute
State the first gear ring.
3. two-speed gearbox according to claim 1, it is characterised in that：Second arrangement of clutch is friction plate clutch
Device.
4. two-speed gearbox according to claim 3, it is characterised in that：Second arrangement of clutch includes third friction plate
With the 4th friction plate, the third friction plate is fixed on first gear ring and is connected, and the 4th friction plate is connected with shell.
5. two-speed gearbox according to claim 4, it is characterised in that：First friction plate and second friction plate
There is a multi-disc, the first friction plate and the spaced setting of the second friction plate described in multi-disc, the third friction plate and described
Four friction plates have a multi-disc, third friction plate and the spaced setting of the 4th friction plate described in multi-disc.
6. two-speed gearbox according to claim 5, it is characterised in that：Second arrangement of clutch further includes the second column
Plug, second plunger are slidably connected on the outer casing inner wall, are provided on second plunger by second plunger top
To the second spring of the third friction plate, it is provided with the second hydraulic channel on the shell, in normal state, described
Under the action of two springs, second plunger holds out against third friction plate and the 4th friction plate, and second planet carrier is locked in
On the shell, after being sent into hydraulic oil to second hydraulic channel, second plunger leaves second arrangement of clutch, institute
State the unlock of the second planet carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333937.9A CN108426005A (en) | 2018-04-13 | 2018-04-13 | Two-speed gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333937.9A CN108426005A (en) | 2018-04-13 | 2018-04-13 | Two-speed gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108426005A true CN108426005A (en) | 2018-08-21 |
Family
ID=63161125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810333937.9A Pending CN108426005A (en) | 2018-04-13 | 2018-04-13 | Two-speed gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108426005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117927620A (en) * | 2024-03-19 | 2024-04-26 | 意宁液压股份有限公司 | Wheel-side planetary reduction driving device with variable transmission ratio |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007012491A1 (en) * | 2007-03-15 | 2008-09-18 | Magna Powertrain Ag & Co Kg | Hydraulically actuated multi-disk clutch i.e. gear clutch, for use on drive chain of motor vehicle, has regulating piston loaded with primary tension and moved backward into engaged position by obtained equilibrium |
| DE102013210366A1 (en) * | 2012-07-24 | 2014-01-30 | Magna Powertrain Ag & Co. Kg | Hybrid module used in drive train of vehicle e.g. hybrid vehicle, has electromotor having rotor that is fixedly connected with portion of clutch, such that clutch is connected on input shaft of gear box |
| CN104595385A (en) * | 2015-01-15 | 2015-05-06 | 三一汽车起重机械有限公司 | Braking mechanism and speed reducer |
| CN104963959A (en) * | 2015-07-13 | 2015-10-07 | 柯晓贤 | Piston-cylinder-fixed type air pressure multi-disc friction clutch |
| CN107448564A (en) * | 2017-09-01 | 2017-12-08 | 宁波东湖液压传动有限公司 | Two-speed gearbox |
| CN207018385U (en) * | 2017-07-21 | 2018-02-16 | 浙江佰事瑞帕瓦传动有限公司 | Pneumatic multi-disc friction clutch |
-
2018
- 2018-04-13 CN CN201810333937.9A patent/CN108426005A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007012491A1 (en) * | 2007-03-15 | 2008-09-18 | Magna Powertrain Ag & Co Kg | Hydraulically actuated multi-disk clutch i.e. gear clutch, for use on drive chain of motor vehicle, has regulating piston loaded with primary tension and moved backward into engaged position by obtained equilibrium |
| DE102013210366A1 (en) * | 2012-07-24 | 2014-01-30 | Magna Powertrain Ag & Co. Kg | Hybrid module used in drive train of vehicle e.g. hybrid vehicle, has electromotor having rotor that is fixedly connected with portion of clutch, such that clutch is connected on input shaft of gear box |
| CN104595385A (en) * | 2015-01-15 | 2015-05-06 | 三一汽车起重机械有限公司 | Braking mechanism and speed reducer |
| CN104963959A (en) * | 2015-07-13 | 2015-10-07 | 柯晓贤 | Piston-cylinder-fixed type air pressure multi-disc friction clutch |
| CN207018385U (en) * | 2017-07-21 | 2018-02-16 | 浙江佰事瑞帕瓦传动有限公司 | Pneumatic multi-disc friction clutch |
| CN107448564A (en) * | 2017-09-01 | 2017-12-08 | 宁波东湖液压传动有限公司 | Two-speed gearbox |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117927620A (en) * | 2024-03-19 | 2024-04-26 | 意宁液压股份有限公司 | Wheel-side planetary reduction driving device with variable transmission ratio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180821 |
|
| WD01 | Invention patent application deemed withdrawn after publication |