CN109340325A - A kind of new type worm wheel formula speed changer and its method for changing speed - Google Patents
A kind of new type worm wheel formula speed changer and its method for changing speed Download PDFInfo
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- CN109340325A CN109340325A CN201811377004.6A CN201811377004A CN109340325A CN 109340325 A CN109340325 A CN 109340325A CN 201811377004 A CN201811377004 A CN 201811377004A CN 109340325 A CN109340325 A CN 109340325A
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- gear
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
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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
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a kind of new type worm wheel formula speed changer and its method for changing speed, wherein in speed changer, it is coaxially connected between the one gear worm gear and the second gear worm gear, the input shaft is fixedly attached on worm gear shaft, the one gear worm gear is engaged with the gear worm screw, the second gear worm gear is engaged with the second gear worm screw, the one gear worm screw is connected on the wheel shaft of the gear reduction gearing by a gear clutch coaxial, the second gear worm screw is connected on the wheel shaft of the second gear reduction gearing by second gear clutch coaxial, the one gear reduction gearing and the second gear reduction gearing are engaged with the output gear, the output shaft is fixedly connected with the wheel shaft of the output gear, the second gear clutch and the gear clutch are connected to shift control apparatus.Transmission ratio of the present invention also reduces greatly speed changer volume.This external gear is mainly in rolling contact in engagement, and worm and gear is mainly sliding contact, therefore the factor for generating noise and vibration is few.
Description
Technical field
The present invention relates to speed changer fields, and in particular to a kind of new type worm wheel formula speed changer and its method for changing speed.
Background technique
In pure electric automobile transmission system, usually use retarder as transmission device, domestic electric car at present is very
It is mostly to retrofit from former orthodox car, in order to reduce development cost, gearbox many times uses the gear of traditional manual five to become
Fast device, and it is fixed on a gear, it is used as fixed speed ratio retarder, cannot achieve shift.Since road conditions etc. are other
The limitation of aspect, the driving performance of automobile is also continually changing, and then motor can not always work under optimum state.Such as
Fruit using aforementioned schemes need the maximum power of motor to must simultaneously meet max. speed when power, max. climb slope when power and
The requirement of acceleration time power three, most of electric vehicle manufacturing enterprise can not use, and being proved two-gear transmission is pure electric vehicle
The more satisfactory selection of automobile.Currently, main transmission device speed changer usually has in the car transmissions occurred in the market
Have that structure is more complex, and haves the defects that accelerate slower.Automatic mechanical transmission (AMT) volume is big, assembly space by
Limitation, shift quality is also poor, hydraulic automatic speed variator (AT) and stepless automatic transmission (CVT) it is expensive, transmitting
Torque is also limited.
The patent of invention of application number CN201110067473.X provide a kind of drive gear shift mechanism for electric automobile pass through it is logical
The separation and actuation for crossing clutch, do not use synchronizer, simplify speed changer structure.But structure is still relative complex, needs to occupy
Certain volume, and the clutch for needing to control is more, needs to design more complex control system, while speed change is slower.
And the patent of invention of application number CN200910199960.4 provides a kind of vehicle clutch power lotus root conjunction synchronizer
Shift hybrid electric drive system, the system realize that shift acts on by synchronizer, and structure is simplified, and occupy small volume,
And energy utilization efficiency can be improved.But it is the electric car for hybrid power, Er Qiechi that the system, which improves energy utilization efficiency,
Wheel transmission gear ratio is relatively small, and in order to which the volume for guaranteeing that enough gear transmission ratio variations need is bigger, and gear passes
Dynamic stationarity and noise effects is poorer than worm gear mechanism, and gear is more, and influence is bigger.
Summary of the invention
The purpose of the present invention is to provide a kind of new type worm wheel formula speed changers, to solve the change of electric car in the prior art
Structure is complicated for fast device, speed change is relatively slow, higher cost, occupies bulky problem.
The new type worm wheel formula speed changer, including input shaft, a gear worm gear, second gear worm gear, gear a worm screw, second gear snail
Bar, second gear clutch, a gear clutch, a gear reduction gearing, second gear reduction gearing, output gear and output shaft, a gear
Coaxially connected, the described input shaft is fixedly attached to the driving one gear worm gear or the second gear between worm gear and the second gear worm gear
On the worm gear shaft of worm gear, a gear worm gear is engaged with the gear worm screw, and the second gear worm gear is engaged with the second gear worm screw,
The one gear worm screw is connected on the wheel shaft of the gear reduction gearing by a gear clutch coaxial, and the second gear worm screw passes through
Second gear clutch coaxial is connected on the wheel shaft of the second gear reduction gearing, a gear reduction gearing and the second gear reducing gear
Wheel is engaged with the output gear, and the output shaft is fixedly connected with the wheel shaft of the output gear, the second gear clutch
Shift control apparatus is connected to the gear clutch.
Preferably, the worm gear shaft is divided into two sections and is separately installed with the gear worm gear and second gear worm gear, the institute
It is coaxially connected by overload protection clutches and the second gear worm gear to state a gear worm gear.
It preferably, further include reverse gear mechanism and drive shaft, the reverse gear mechanism includes reverse gear synchronizer and commutating tooth turbine
The tooth hub of structure, the reverse gear synchronizer is fixedly connected with drive shaft, and the reverse gear synchronizer is located at the synchronization of tooth hub side
Ring is fixedly installed on the input shaft, and the synchronization ring of the tooth hub other side is fixedly mounted on the defeated of the reversing gear mechanism
Enter on the wheel shaft of gear, the reversing gear mechanism further includes the transmission gear one engaged with the input gear and the biography
The coaxially connected transmission gear two of moving gear one, the intermediate drive gear engaged with the transmission gear two and with it is described with it is described
The reverse output gear of intermediate drive gear engagement, the reverse output gear is fixedly mounted on the input shaft, it is described fall
Gear synchronizer is connected with the shift control apparatus.
Preferably, the wheel shaft of the input gear is set axis of the empty set in the drive shaft, the wheel of the input gear
It is connected between axis and the drive shaft by bearing.
It preferably, further include driving device switching mechanism, including engine switch clutch and motor switch clutch,
The drive shaft and the input shaft have two, and the drive shaft includes engine shaft and motor drive shaft, described
Input shaft includes the engine input shaft and input electric motor shaft for being connected respectively to two sections of the worm gear shaft, the engine driving
Axis is connected to the tooth hub of the reverse gear synchronizer by engine switch clutch, and the reverse gear synchronizer is located at the tooth hub one
The synchronization ring and the reverse output gear of side are fixedly arranged on the engine input shaft, and the motor drive shaft is then
The input electric motor shaft, the engine switch clutch and the electronic machine-cut are connected to by motor switch clutch
Clutch is changed to be connected and be controlled by it with driving switching control.
In view of the above technology the present invention also provides a kind of method for changing speed of new type worm wheel formula speed changer, driving device is electricity
Motivation, the specific steps are as follows:
When automobile normal running hangs a gear, motor is rotated forward, and shift control apparatus controls second gear clutch separation simultaneously
One gear clutch of control combines, and the power that motor generates is through input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear clutch
Device, a gear reduction gearing and output gear are transmitted to output shaft；
When automobile normal running hangs second gear, motor is rotated forward, and shift control apparatus controls second gear clutch and combines simultaneously
One gear clutch separation of control, the power that motor generates is through input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear clutch
Device, second gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hangs a gear, motor reversion, shift control apparatus control second gear clutch separation controls simultaneously
One gear clutch combine, motor generate power through input shaft, worm gear shaft, one gear worm gear, one gear worm screw, one gear clutch,
One gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hangs second gear, motor reversion, shift control apparatus control second gear clutch is combined while being controlled
One gear clutch separation, motor generate power through input shaft, worm gear shaft, second gear worm gear, second gear worm screw, second gear clutch,
Second gear reduction gearing and output gear are transmitted to output shaft.
Invention additionally provides a kind of method for changing speed of new type worm wheel formula speed changer, and driving device is engine, including as follows
Step:
When automobile normal running hang one gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with
The synchronization ring for being mounted on the input shaft combines transmission, second gear clutch separation while one gear clutch of control to combine, engine
The power of generation is through drive shaft, reverse gear synchronizer, input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear clutch, a gear
Reduction gearing and output gear are transmitted to output shaft；
When automobile normal running hang second gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with
The synchronization ring for being mounted on the input shaft combines transmission, second gear clutch to combine while controlling a gear clutch separation, engine
The power of generation is through drive shaft, reverse gear synchronizer, input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear clutch, second gear
Reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hang one gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with connect
Synchronization ring to reversing gear mechanism combines one gear clutch of transmission, second gear clutch separation control simultaneously to combine, and engine produces
Raw power is through drive shaft, reverse gear synchronizer, reversing gear mechanism, input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear
Clutch, a gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hang second gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with connect
Synchronization ring to reversing gear mechanism combines transmission, second gear clutch to combine while controlling a gear clutch separation, and engine produces
Raw power is through drive shaft, reverse gear synchronizer, reversing gear mechanism, input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear
Clutch, second gear reduction gearing and output gear are transmitted to output shaft.
Invention additionally provides a kind of method for changing speed of new type worm wheel formula speed changer, and the driving device is engine and electronic
Machine, the specific steps are as follows:
When automobile uses electric drive, the driving switching control control the engine switch clutch separate and
The motor switch clutch combines, and the power that motor generates is passed by motor drive shaft and motor switch clutch
It is delivered to input electric motor shaft；
When automobile normal running hangs a gear, motor is rotated forward, and shift control apparatus controls second gear clutch separation simultaneously
One gear clutch of control combines, and the power that motor generates is through input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear clutch
Device, a gear reduction gearing and output gear are transmitted to output shaft；
When automobile normal running hangs second gear, motor is rotated forward, and shift control apparatus controls second gear clutch and combines simultaneously
One gear clutch separation of control, the power that motor generates is through input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear clutch
Device, second gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hangs a gear, motor reversion, shift control apparatus control second gear clutch separation controls simultaneously
One gear clutch combine, motor generate power through input shaft, worm gear shaft, one gear worm gear, one gear worm screw, one gear clutch,
One gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hangs second gear, motor reversion, shift control apparatus control second gear clutch is combined while being controlled
One gear clutch separation, motor generate power through input shaft, worm gear shaft, second gear worm gear, second gear worm screw, second gear clutch,
Second gear reduction gearing and output gear are transmitted to output shaft.
When automobile is driven using fuel oil, the driving switching control controls the engine switch clutch and combines
And the motor switch clutch separation, the power that engine generates are transmitted by engine switch clutch and reverse gear mechanism
To the engine input shaft；
When automobile normal running hang one gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with
The synchronization ring for being mounted on the input shaft combines transmission, second gear clutch separation while one gear clutch of control to combine, engine
The power of generation is through drive shaft, reverse gear synchronizer, input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear clutch, a gear
Reduction gearing and output gear are transmitted to output shaft；
When automobile normal running hang second gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with
The synchronization ring for being mounted on the input shaft combines transmission, second gear clutch to combine while controlling a gear clutch separation, engine
The power of generation is through drive shaft, reverse gear synchronizer, input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear clutch, second gear
Reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hang one gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with connect
Synchronization ring to reversing gear mechanism combines one gear clutch of transmission, second gear clutch separation control simultaneously to combine, and engine produces
Raw power is through drive shaft, reverse gear synchronizer, reversing gear mechanism, input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear
Clutch, a gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hang second gear when, engine rotate forward, shift control apparatus control reverse gear synchronizer tooth hub with connect
Synchronization ring to reversing gear mechanism combines transmission, second gear clutch to combine while controlling a gear clutch separation, and engine produces
Raw power is through drive shaft, reverse gear synchronizer, reversing gear mechanism, input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear
Clutch, second gear reduction gearing and output gear are transmitted to output shaft.
The present invention has the advantages that the gear drive of Worm Wheel System and other forms is compared, single-stage speed ratio is big, this hair
Bright scheme can be greatly improved the revolving speed of output compared to the revolving speed of input by worm-gear driven worm screw, therefore can be become in motor speed
The changing value that output shaft revolving speed is rapidly changed when changing smaller, effectively improves gear changing rate.And the axis of worm and worm wheel can hang down
It directly arranges and mutually disjoints, can accomplish the effect for reducing speed changer volume, transmission ratio also reduces greatly speed changer volume.This external tooth
Wheel is mainly in rolling contact in engagement, and worm and gear is mainly sliding contact, therefore generates the factor of noise and vibration
It is few.The speed changer can be also used for other special operations machinery being driven by electricity, if farm machinery, building machinery etc..
This speed change gear is when carrying out normally travel and reversing switching, if can be by electronic by motor drive
The bi-directional drive effect of machine itself switches over, if driven by fuel oil, can also carry out input shaft by reverse gear mechanism
Turn to switching.Corresponding hybrid vehicle can also carry out the switching of driving device by driving device switching mechanism, due to right
The input shaft of two driving devices is answered to be respectively provided at worm gear shaft both ends, therefore two input shafts mutually will not influence, as long as guaranteeing
The reliable of switching control 24 is driven, this speed changer will not cause to ask because inner body is worn to the switching of driving device
Topic, defect be using two clutch controls, need to prevent clutch because driving switching control failure cause in combination with
When this speed changer is damaged, in this gear adjust gear clutch can prevent asking here with overload protection clutches
Topic, but still should be noted the situation that due to two kinds of driving devices while gear speed caused by driving is uncontrolled.Solve above-mentioned ask
The present invention can carry out gear switching under different device driving according to corresponding method for changing speed after topic, easy to use, using model
It encloses extensively.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of structure bottom screw rod and gear mechanism shown in Fig. 2；
Fig. 4 is the structural schematic diagram that the screw rod and gear parts of clutch are equipped in structure shown in Fig. 3；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 3；.
Wherein, 1, motor, 2, one gear worm gear, 3, one gear worm screw, 4, one gear reduction gearing, 5, output gear, 6, second gear
Clutch, 7, one gear clutch, 8, second gear worm gear, 9, second gear worm screw, 10, second gear reduction gearing, 11, worm gear shaft, 12, input
Axis, 13, output shaft, 14, shift control apparatus, 15, reverse gear synchronizer, 16, input gear, 17, transmission gear one, 18, transmission
Gear two, 19, intermediate drive gear, 20, reverse output gear, 21, engine, 22, engine switch clutch, 23, electronic
Machine switch clutch, 24, driving switching control.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making further details of theory to the specific embodiment of the invention
It is bright, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical solution
Solution.
Embodiment 1:
As shown in Figs 1-4, the present invention provides a kind of new type worm wheel formula speed changer, basic technical scheme is as follows: including defeated
Enter the gear of axis 12, one worm gear 2, second gear worm gear 8, one keeps off worm screw 3, second gear worm screw 9, second gear clutch 6, one and keeps off clutch 7, one and keep off and subtracts
Fast gear 4, second gear reduction gearing 10, output gear 5 and output shaft 13, it is same between a gear worm gear 2 and the second gear worm gear 8
Axis connection, the input shaft 12 are fixedly attached on the worm gear shaft 11 for driving a gear worm gear 2 or the second gear worm gear 8, institute
It states a gear worm gear 2 to engage with the gear worm screw 3, the second gear worm gear 8 is engaged with the second gear worm screw 9, the gear worm screw 3
By the way that on the coaxially connected wheel shaft to the gear reduction gearing 4 of a gear clutch 7, the second gear worm screw 9 passes through second gear clutch
On the coaxially connected wheel shaft to the second gear reduction gearing 10 of device 6, a gear reduction gearing 4 and the second gear reduction gearing 10
It is engaged with the output gear 5, the output shaft 13 is fixedly connected with the wheel shaft of the output gear 5, the second gear clutch
Device 6 and the gear clutch 7 are connected to shift control apparatus 14.The speed change gear, which reverses gear to invert by driving device, to be realized,
Therefore the case where being driven by either-rotation motor, such as pure electric automobile are only applicable to.
After above-mentioned speed change gear, the present invention also provides a kind of speed change sides based on above-mentioned new type worm wheel formula speed changer
Method, the specific steps are as follows:
When automobile normal running hangs a gear, motor 1 is rotated forward, and shift control apparatus 14 controls second gear clutch 6 and separates
One gear clutch 7 of control simultaneously combines, and the power that motor 1 generates keeps off worm gear 2, one through input shaft 12, worm gear shaft 11, one and keeps off snail
Bar 3, one keeps off the gear reduction gearing 4 of clutch 7, one and output gear 5 is transmitted to output shaft 13；
When automobile normal running hangs second gear, motor 1 is rotated forward, and shift control apparatus 14 controls second gear clutch 6 and combines
One gear clutch 7 of control simultaneously separates, and the power that motor 1 generates is through input shaft 12, worm gear shaft 11, second gear worm gear 8, second gear spiral shell
Bar, second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13；
When reversing automobile hangs a gear, motor 1 is inverted, and shift control apparatus 14 controls the separation of second gear clutch 6 simultaneously
Control one gear clutch 7 combine, motor 1 generate power through input shaft 12, worm gear shaft 11, one keep off worm gear 2, one keep off worm screw 3,
One gear clutch 7, one keeps off reduction gearing 4 and output gear 5 is transmitted to output shaft 13；
When reversing automobile hangs second gear, motor 1 is inverted, and shift control apparatus 14 controls second gear clutch 6 and combines simultaneously
Control one gear clutch 7 separate, motor 1 generate power through input shaft 12, worm gear shaft 11, second gear worm gear 8, second gear worm screw 9,
Second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13.
The output end of motor 1 is to be connected to the both ends of same root worm gear shaft 11 therefore no matter which is connected in said mechanism
One end effect be it is equivalent, do not influence the connection structure of shift control apparatus 14.
Furthermore circuit or mechanical breakdown cause second gear clutch 66 and one to keep off clutch 77 in combination with enabling two in order to prevent
A reduction gearing rotates simultaneously, endangers driver's life security so as to cause speed change gear or is damaged, worm gear shaft 11 divides
It is two sections, it is coaxially connected by normally closed overload protection clutches.In this way when two clutches are all closed, normally closed overload is protected
Shield clutch can be automatically separated at this moment, only allow the worm gear being directly connected to be driven, speed changer is avoided to be destroyed, protection is driven
The person's of sailing life security.In view of a gear speed is lower, therefore driving device is directly to a gear worm gear 2 in this configuration
11 one end of worm gear shaft at place.
Embodiment 2:
As shown in figure 5, the present invention provides a kind of worm gear and endless screw speed changer for electric car, in the embodiment 1
On the basis of improve to be suitable for the driving devices such as motor 1 of engine 21 or one-directional rotation.Improvement is to increase
Reverse gear mechanism and drive shaft, the reverse gear mechanism include reverse gear synchronizer 15 and reversing gear mechanism, the reverse gear synchronizer
15 tooth hub is fixedly connected with drive shaft, and the synchronization ring that the reverse gear synchronizer 15 is located at tooth hub side is fixedly installed to institute
It states on input shaft 12, the synchronization ring of the tooth hub other side is fixedly mounted on the wheel of the input gear 16 of the reversing gear mechanism
On axis, the wheel shaft of the input gear 16 is set axis of the empty set in the drive shaft, the wheel shaft of the input gear 16 and institute
It states and is connected between drive shaft by bearing.The tooth hub of synchronizer under the manipulation of shift control apparatus 14 can according to circumstances respectively with
The synchronization ring of two sides is implemented in combination with transmission, therefore can be used as the switching device of axis power transmitting.
In addition to the input gear 16, the reversing gear mechanism further includes the driving cog engaged with the input gear 16
Take turns 1, with the coaxially connected transmission gear 2 18 of the transmission gear 1, the centre engaged with the transmission gear 2 18
Transmission gear 19 and with the reverse output gear 20 engaged with the intermediate drive gear 19, the reverse output gear 20
It is fixedly mounted on the input shaft 12, the reverse gear synchronizer 15 is connected with the shift control apparatus 14.Can thus it lead to
It crosses reverse gear mechanism and carries out steering switching, reversed gear by the control realization of speed change gear.And input gear 16 and the transmission gear
Transmission ratio is 1:1 between one 17,20 three's of the transmission gear 2 18, the intermediate drive gear 19 and reverse output gear
Transmission ratio is 1:1:1, and in this way under the state of reversing gear, the revolving speed of input shaft 12 and drive shaft by reversing gear mechanism transmission is
The same, speed change situation when reversing gear is grasped convenient for driver.
The method for changing speed of new type worm wheel formula speed changer in the present embodiment is as follows:
When automobile normal running hangs a gear, engine 21 is rotated forward, and shift control apparatus 14 controls reverse gear synchronizer 15
Tooth hub is driven in conjunction with the synchronous ring for being mounted on the input shaft 12, second gear clutch 6 separates one gear 7 knot of clutch of control simultaneously
It closes, the power that engine 21 generates keeps off worm gear 2, one through drive shaft, reverse gear synchronizer 15, input shaft 12, worm gear shaft 11, one and keeps off snail
Bar 3, one keeps off the gear reduction gearing 4 of clutch 7, one and output gear 5 is transmitted to output shaft 13；
When automobile normal running hangs second gear, engine 21 is rotated forward, and shift control apparatus 14 controls reverse gear synchronizer 15
Tooth hub is driven in conjunction with the synchronous ring for being mounted on the input shaft 12, second gear clutch 6 combines one gear clutch 7 of control simultaneously to divide
From the power that engine 21 generates is through drive shaft, reverse gear synchronizer 15, input shaft 12, worm gear shaft 11, second gear worm gear 8, second gear spiral shell
Bar, second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13；
When reversing automobile hangs a gear, engine 21 is rotated forward, and shift control apparatus 14 controls the tooth hub of reverse gear synchronizer 15
Transmission, second gear clutch 6 separate one gear clutch 7 of control simultaneously and combine in conjunction with the synchronous ring for being connected to reversing gear mechanism,
The power that engine 21 generates keeps off snail through drive shaft, reverse gear synchronizer 15, reversing gear mechanism, input shaft 12, worm gear shaft 11, one
2, one gear worm screw 3, one of wheel keeps off the gear reduction gearing 4 of clutch 7, one and output gear 5 is transmitted to output shaft 13；
When reversing automobile hangs second gear, engine 21 is rotated forward, and shift control apparatus 14 controls the tooth hub of reverse gear synchronizer 15
Transmission, second gear clutch 6 combine one gear clutch 7 of control simultaneously to separate in conjunction with the synchronous ring for being connected to reversing gear mechanism,
The power that engine 21 generates is through drive shaft, reverse gear synchronizer 15, reversing gear mechanism, input shaft 12, worm gear shaft 11, second gear snail
Wheel 8, second gear screw rod, second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13.
Embodiment 3:
As shown in fig. 6, being further improved on the basis of embodiment 2, primarily to adapting to hybrid power vapour
Vehicle be able to also should be wanted drive by engine 21 by motor driven.Therefore the improvement of the present embodiment is: being additionally provided with
Driving device switching mechanism, including engine switch clutch and motor switch clutch 23, the drive shaft and described defeated
Entering axis 12 has two, and the drive shaft includes engine shaft and motor drive shaft, and the input shaft 12 includes difference
It is connected to the engine input shaft 12 and input electric motor shaft 12 of 11 two sections of the worm gear shaft, the engine shaft passes through hair
Motivation switch clutch is connected to the tooth hub of the reverse gear synchronizer 15, and the reverse gear synchronizer 15 is located at tooth hub side
Synchronous ring and the reverse output gear 20 are fixedly arranged on the engine input shaft 12, and the motor drive shaft is then
The input electric motor shaft 12 is connected to by motor switch clutch 23, the engine switch clutch and described electronic
Machine switch clutch 23, which is connected with driving switching control 24, to be controlled by it.Driving switching control 24 can manipulate driving
Device switching mechanism is to realize that the input power of this speed change gear switches between motor 1 and engine 21.Two
Input shaft 12 mutually will not influence, as long as guaranteeing the reliable of driving switching control 24, this speed changer will not be because of inside zero
Part wears and throws into question to the switching of driving device.
The present invention also provides a kind of method for changing speed of new type worm wheel formula speed changer, it is used for hybrid vehicle, it can be with
The driving of motor 1 can also be driven with engine 21.Specific step is as follows:
When automobile uses electric drive, the driving switching control 24 controls the engine switch clutch separation
And the motor switch clutch 23 combines, the power that motor 1 generates by motor drive shaft and motor switch from
Clutch 23 is transmitted to input electric motor shaft 12；
When automobile normal running hangs a gear, motor 1 is rotated forward, and shift control apparatus 14 controls second gear clutch 6 and separates
One gear clutch 7 of control simultaneously combines, and the power that motor 1 generates keeps off worm gear 2, one through input shaft 12, worm gear shaft 11, one and keeps off snail
Bar 3, one keeps off the gear reduction gearing 4 of clutch 7, one and output gear 5 is transmitted to output shaft 13；
When automobile normal running hangs second gear, motor 1 is rotated forward, and shift control apparatus 14 controls second gear clutch 6 and combines
One gear clutch 7 of control simultaneously separates, and the power that motor 1 generates is through input shaft 12, worm gear shaft 11, second gear worm gear 8, second gear spiral shell
Bar, second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13；
When reversing automobile hangs a gear, motor 1 is inverted, and shift control apparatus 14 controls the separation of second gear clutch 6 simultaneously
Control one gear clutch 7 combine, motor 1 generate power through input shaft 12, worm gear shaft 11, one keep off worm gear 2, one keep off worm screw 3,
One gear clutch 7, one keeps off reduction gearing 4 and output gear 5 is transmitted to output shaft 13；
When reversing automobile hangs second gear, motor 1 is inverted, and shift control apparatus 14 controls second gear clutch 6 and combines simultaneously
Control one gear clutch 7 separate, motor 1 generate power through input shaft 12, worm gear shaft 11, second gear worm gear 8, second gear worm screw 9,
Second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13.
When automobile is driven using fuel oil, the driving switching control 24 controls the engine switch clutch knot
It closes and the separation of 1 switch clutch of the motor, the power that engine 21 generates is by engine switch clutch and the machine that reverses gear
Structure is transmitted to the engine input shaft 12；
When automobile normal running hangs a gear, engine 21 is rotated forward, and shift control apparatus 14 controls reverse gear synchronizer 15
Tooth hub is driven in conjunction with the synchronous ring for being mounted on the input shaft 12, second gear clutch 6 separates one gear 7 knot of clutch of control simultaneously
It closes, the power that engine 21 generates keeps off worm gear 2, one through drive shaft, reverse gear synchronizer 15, input shaft 12, worm gear shaft 11, one and keeps off snail
Bar 3, one keeps off the gear reduction gearing 4 of clutch 7, one and output gear 5 is transmitted to output shaft 13；
When automobile normal running hangs second gear, engine 21 is rotated forward, and shift control apparatus 14 controls reverse gear synchronizer 15
Tooth hub is driven in conjunction with the synchronous ring for being mounted on the input shaft 12, second gear clutch 6 combines one gear clutch 7 of control simultaneously to divide
From the power that engine 21 generates is through drive shaft, reverse gear synchronizer 15, input shaft 12, worm gear shaft 11, second gear worm gear 8, second gear spiral shell
Bar, second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13；
When reversing automobile hangs a gear, engine 21 is rotated forward, and shift control apparatus 14 controls the tooth hub of reverse gear synchronizer 15
Transmission, second gear clutch 6 separate one gear clutch 7 of control simultaneously and combine in conjunction with the synchronous ring for being connected to reversing gear mechanism,
The power that engine 21 generates keeps off snail through drive shaft, reverse gear synchronizer 15, reversing gear mechanism, input shaft 12, worm gear shaft 11, one
2, one gear worm screw 3, one of wheel keeps off the gear reduction gearing 4 of clutch 7, one and output gear 5 is transmitted to output shaft 13；
When reversing automobile hangs second gear, engine 21 is rotated forward, and shift control apparatus 14 controls the tooth hub of reverse gear synchronizer 15
Transmission, second gear clutch 6 combine one gear clutch 7 of control simultaneously to separate in conjunction with the synchronous ring for being connected to reversing gear mechanism,
The power that engine 21 generates is through drive shaft, reverse gear synchronizer 15, reversing gear mechanism, input shaft 12, worm gear shaft 11, second gear snail
Wheel 8, second gear screw rod, second gear clutch 6, second gear reduction gearing 10 and output gear 5 are transmitted to output shaft 13.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, it is or not improved as long as using the improvement for the various unsubstantialities that the method for the present invention conception and technical scheme carry out
Present inventive concept and technical solution are directly applied into other occasions, within that scope of the present invention.
Claims (8)
1. a kind of new type worm wheel formula speed changer, it is characterised in that: including input shaft, one gear worm gear, second gear worm gear, one gear worm screw,
Second gear worm screw, second gear clutch, a gear clutch, a gear reduction gearing, second gear reduction gearing, output gear and output shaft, institute
It states coaxially connected, the described input shaft between a gear worm gear and the second gear worm gear and is fixedly attached to the driving one gear worm gear or institute
On the worm gear shaft for stating second gear worm gear, a gear worm gear is engaged with the gear worm screw, the second gear worm gear and the second gear snail
Bar engagement, a gear worm screw are connected on the wheel shaft of the gear reduction gearing by a gear clutch coaxial, the second gear
Worm screw is connected on the wheel shaft of the second gear reduction gearing by second gear clutch coaxial, the gear reduction gearing and described two
Gear reduction gearing is engaged with the output gear, and the output shaft is fixedly connected with the wheel shaft of the output gear, and described two
Gear clutch and the gear clutch are connected to shift control apparatus.
2. a kind of new type worm wheel formula speed changer according to claim 1, it is characterised in that: the worm gear shaft is divided into two sections points
The one gear worm gear and the second gear worm gear are not installed, the gear worm gear passes through overload protection clutches and described two
It is coaxially connected to keep off worm gear.
3. a kind of new type worm wheel formula speed changer according to claim 1 or 2, it is characterised in that: further include reverse gear mechanism and
Drive shaft, the reverse gear mechanism include reverse gear synchronizer and reversing gear mechanism, the tooth hub and drive shaft of the reverse gear synchronizer
It is fixedly connected, the synchronization ring that the reverse gear synchronizer is located at tooth hub side is fixedly installed on the input shaft, the tooth
The synchronization ring of the hub other side is fixedly mounted on the wheel shaft of the input gear of the reversing gear mechanism, the reversing gear mechanism
Further include the transmission gear one engaged with the input gear, with the coaxially connected transmission gear two of the transmission gear one, with
Intermediate drive gear that the transmission gear two engages and with the reverse output gear engaged with the intermediate drive gear,
The reverse output gear is fixedly mounted on the input shaft, and the reverse gear synchronizer is connected with the shift control apparatus.
4. a kind of new type worm wheel formula speed changer according to claim 3, it is characterised in that: the wheel shaft of the input gear is
Set axis of the empty set in the drive shaft is connected between the wheel shaft of the input gear and the drive shaft by bearing.
5. a kind of new type worm wheel formula speed changer according to claim 3, it is characterised in that: further include driving device interpreter
Structure, including engine switch clutch and motor switch clutch, the drive shaft and the input shaft have two, described
Drive shaft includes engine shaft and motor drive shaft, and the input shaft includes being connected respectively to two sections of the worm gear shaft
Engine input shaft and input electric motor shaft, the engine shaft are connected to described reverse gear by engine switch clutch
The tooth hub of synchronizer, the reverse gear synchronizer are located at the synchronization ring and all fixed peace of the reverse output gear of tooth hub side
On the engine input shaft, the motor drive shaft then passes through motor switch clutch and is connected to the motor
Input shaft, the engine switch clutch and the motor switch clutch are connected with driving switching control by it
Control.
6. a kind of method for changing speed of new type worm wheel formula speed changer according to claim 1, it is characterised in that: driving device is
Motor, the specific steps are as follows:
When automobile normal running hangs a gear, motor is rotated forward, and shift control apparatus control second gear clutch separation controls simultaneously
One gear clutch combine, motor generate power through input shaft, worm gear shaft, one gear worm gear, one gear worm screw, one gear clutch,
One gear reduction gearing and output gear are transmitted to output shaft；
When automobile normal running hangs second gear, motor is rotated forward, and shift control apparatus control second gear clutch is combined while being controlled
One gear clutch separation, motor generate power through input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear clutch,
Second gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hangs a gear, motor reversion, shift control apparatus controls second gear clutch separation and controls a gear simultaneously
Clutch combines, and the power that motor generates is through input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear clutch, a gear
Reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hangs second gear, motor reversion, shift control apparatus controls second gear clutch and combines while controlling a gear
Clutch separation, the power that motor generates is through input shaft, worm gear shaft, second gear worm gear, second gear worm screw, second gear clutch, second gear
Reduction gearing and output gear are transmitted to output shaft.
7. a kind of method for changing speed of new type worm wheel formula speed changer according to claim 3, it is characterised in that: driving device is
Engine includes the following steps:
When automobile normal running hangs a gear, engine is rotated forward, and shift control apparatus controls tooth hub and the installation of reverse gear synchronizer
It combines transmission, second gear clutch separation to control a gear clutch simultaneously in the synchronization ring of the input shaft to combine, engine generates
Power through drive shaft, reverse gear synchronizer, input shaft, worm gear shaft, one gear worm gear, one gear worm screw, one gear clutch, one gear slow down
Gear and output gear are transmitted to output shaft；
When automobile normal running hangs second gear, engine is rotated forward, and shift control apparatus controls tooth hub and the installation of reverse gear synchronizer
It combines transmission, second gear clutch to combine in the synchronization ring of the input shaft while controlling a gear clutch separation, engine generates
Power through drive shaft, reverse gear synchronizer, input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear clutch, second gear slow down
Gear and output gear are transmitted to output shaft；
When reversing automobile hangs a gear, engine is rotated forward, and the tooth hub of shift control apparatus control reverse gear synchronizer is changed with being connected to
It combines transmission, second gear clutch separation to control a gear clutch simultaneously to the synchronization ring of gear mechanism to combine, what engine generated
Power is through drive shaft, reverse gear synchronizer, reversing gear mechanism, input shaft, worm gear shaft, a gear worm gear, a gear worm screw, a gear clutch
Device, a gear reduction gearing and output gear are transmitted to output shaft；
When reversing automobile hangs second gear, engine is rotated forward, and the tooth hub of shift control apparatus control reverse gear synchronizer is changed with being connected to
It combines transmission, second gear clutch to combine to the synchronization ring of gear mechanism while controlling a gear clutch separation, what engine generated
Power is through drive shaft, reverse gear synchronizer, reversing gear mechanism, input shaft, worm gear shaft, second gear worm gear, second gear screw rod, second gear clutch
Device, second gear reduction gearing and output gear are transmitted to output shaft.
8. a kind of method for changing speed of new type worm wheel formula speed changer according to claim 5, it is characterised in that: the driving dress
It is set to engine and motor, the specific steps are as follows:
When automobile uses electric drive, the driving switching control controls the engine switch clutch and separates and described
Motor switch clutch combines, and the power that motor generates is transmitted to by motor drive shaft and motor switch clutch
Input electric motor shaft；It is transferred power to further according to a kind of method for changing speed of new type worm wheel formula speed changer as claimed in claim 7
Output shaft；
When automobile is driven using fuel oil, the driving switching control control engine switch clutch in conjunction with and institute
The separation of motor switch clutch is stated, the power that engine generates is transmitted to institute by engine switch clutch and reverse gear mechanism
Engine input shaft is stated, transmits power further according to a kind of method for changing speed of new type worm wheel formula speed changer according to any one of claims 8
To output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377004.6A CN109340325A (en) | 2018-11-19 | 2018-11-19 | A kind of new type worm wheel formula speed changer and its method for changing speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377004.6A CN109340325A (en) | 2018-11-19 | 2018-11-19 | A kind of new type worm wheel formula speed changer and its method for changing speed |
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| Publication Number | Publication Date |
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| CN109340325A true CN109340325A (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811377004.6A Pending CN109340325A (en) | 2018-11-19 | 2018-11-19 | A kind of new type worm wheel formula speed changer and its method for changing speed |
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Cited By (1)
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| CN110056614A (en) * | 2019-04-23 | 2019-07-26 | 合肥工业大学 | One kind being based on three clutch electric automobiles, three speed automatic transmission |
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