CN109958739A - Transfer case, transfer box assembly and sweeper - Google Patents
Transfer case, transfer box assembly and sweeper Download PDFInfo
- Publication number
- CN109958739A CN109958739A CN201711405463.6A CN201711405463A CN109958739A CN 109958739 A CN109958739 A CN 109958739A CN 201711405463 A CN201711405463 A CN 201711405463A CN 109958739 A CN109958739 A CN 109958739A
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- CN
- China
- Prior art keywords
- gear group
- wheel
- input shaft
- transition
- output shaft
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/46—Inputs being a function of speed dependent on a comparison between 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
- 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
- F16H61/04—Smoothing ratio shift
-
- 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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
Abstract
The present invention relates to a kind of transfer case, transfer box assembly and sweepers.Sweeper, including engine and it is sequentially connected in the transfer box assembly of engine output end, transfer box assembly includes transfer case, transfer case includes shell, input shaft and output shaft are rotatably equipped on shell, water pump, blower and oil pump are connected separately on input shaft, output shaft, enclosure interior is equipped with first gear group, second gear group and the switching device transmitted for controlling power from first gear group or second gear group, the transmission ratio of first gear group and is less than the transmission ratio of second gear group.Sweeper, which is normally carried out, to be washed when sweeping operation, and switching device controls and transmits power by second gear group between input shaft and output shaft；When shifting gears or meeting traffic lights, engine speed is reduced, and switching device controls and transmits power by the lesser first gear group of transmission ratio between input shaft and output shaft, so as to avoid the rotation speed of fan decline being connected with output shaft, ensures that sweeper continues to collect sewage.
Description
Technical field
The present invention relates to a kind of transfer case, transfer box assembly and sweepers.
Background technique
With the continuous improvement of living standards, environmental problem is also increasingly valued by people, highway, city street
The needs such as road, square road surface periodically carry out cleaning and keep a public place clean.Sweeper is a kind of vehicle dedicated for road cleaning.Current washes
A kind of common structure for sweeping vehicle is one Full-power takeoff of setting after engine, and Full-power takeoff drives transfer case, point
Power is divided into three tunnels by dynamic case, respectively drives blower, water pump and oil pump, spcific power when as sweeper work, this knot
The shortcomings that structure is only power cutoff device, without gear, when vehicle shifts gears when washing and sweeping operation or meets traffic lights, hair
Motivation revolving speed reduces, and rotation speed of fan decreases, causes sewage that can not be collected, influence operation effectiveness.
Summary of the invention
The purpose of the present invention is to provide a kind of transfer cases for introducing gear, are washing for solving existing sweeper
When sweeping shift in operation process or meeting traffic lights, because engine speed reduction causes rotation speed of fan to decrease, so as to cause dirt
The problem of water can not be collected；The object of the invention is also to provide a kind of transfer box assembly and sweepers.
To achieve the above object, transfer case of the invention adopts the following technical scheme that
Technical solution 1: transfer case, including shell are rotatably equipped with input shaft and output shaft on shell, and enclosure interior is equipped with first
Gear set, second gear group and power is transmitted by first gear group or by for controlling between input shaft and output shaft
Two gear sets transmit the switching device of power, and the transmission ratio of first gear group is less than the transmission ratio of second gear group.
It washes when sweeping operation the utility model has the advantages that sweeper is normally carried out, passes through between switching device control input shaft and output shaft
Second gear group transmits power；When shifting gears or meeting traffic lights, engine speed is reduced, and switching device controls input shaft and output
Power is transmitted by the lesser first gear group of transmission ratio between axis, so as to avoid under the rotation speed of fan being connected with output shaft
Drop ensures that sweeper continues to collect sewage.
Technical solution 2: on the basis of technical solution 1, being set with the first driving wheel and the second driving wheel on input shaft, defeated
Enter and be equipped with transition axis between axis and output shaft, be set with First Transition wheel and the second transition wheel on transition axis, the first driving wheel with
First Transition wheel constitutes the first gear group, and the second driving wheel and the second transition wheel constitute the second gear group, switching dress
It is set to that synchronizer corresponding with the first driving wheel and the second driving wheel respectively is arranged on input shaft or is arranged on transition axis and divides
Synchronizer not corresponding with First Transition wheel and the second transition wheel.
Technical solution 3: on the basis of technical solution 2, switching device be arranged on input shaft respectively with first actively
Take turns synchronizer corresponding with the second driving wheel.Structure is simple, easy to operate.
Technical solution 4: on the basis of technical solution 3, output wheel, output wheel and First Transition wheel are set on output shaft
Or second transition wheel engagement for realizing power transmitting.
Technical solution 5: on the basis of technical solution 4, output wheel is engaged with the second transition wheel for realizing power transmitting.
Technical solution 6: on the basis of technical solution 5, output shaft is equipped with and is connected with exporting axis for controlling output wheel
Or the one-way clutch disengaged.It is detached from both when output shaft revolving speed is greater than output wheel speed, when output shaft revolving speed is less than or waits
It is connected both when exporting wheel speed, so that it is guaranteed that blower and output wheel are detached from shift process, reduces shift shock.
Technical solution 7: it on the basis of technical solution 1-6 any one, is additionally provided on input shaft for controlling input shaft
The clutch connected or disconnected with pump shaft.When needing to spray water, clutch closure makes input shaft and water pump axis connection, works as needs
When stopping water spray, clutch disconnection separates input shaft with pump shaft, passes through the working condition of clutch control water pump in this way, no
Only flexible operation and energy loss is few, transmission efficiency are high.
Transfer box assembly of the invention adopts the following technical scheme that
Technical solution 1: transfer box assembly, including transfer case, transfer case include shell, and input shaft and defeated is rotatably equipped on shell
Shaft, water pump, blower and oil pump are connected separately on input shaft, output shaft, and enclosure interior is equipped with first gear group, second gear
Group and the switching device transmitted for controlling power from first gear group or second gear group, the transmission ratio of first gear group are small
In the transmission ratio of second gear group.
It washes when sweeping operation the utility model has the advantages that sweeper is normally carried out, passes through between switching device control input shaft and output shaft
Second gear group transmits power；When shifting gears or meeting traffic lights, engine speed is reduced, and switching device controls input shaft and output
Power is transmitted by the lesser first gear group of transmission ratio between axis, so as to avoid under the rotation speed of fan being connected with output shaft
Drop ensures that sweeper continues to collect sewage.
Technical solution 2: on the basis of technical solution 1, being set with the first driving wheel and the second driving wheel on input shaft, defeated
Enter and be equipped with transition axis between axis and output shaft, be set with First Transition wheel and the second transition wheel on transition axis, the first driving wheel with
First Transition wheel constitutes the first gear group, and the second driving wheel and the second transition wheel constitute the second gear group, switching dress
It is set to that synchronizer corresponding with the first driving wheel and the second driving wheel respectively is arranged on input shaft or is arranged on transition axis and divides
Synchronizer not corresponding with First Transition wheel and the second transition wheel.
Technical solution 3: on the basis of technical solution 2, switching device be arranged on input shaft respectively with first actively
Take turns synchronizer corresponding with the second driving wheel.Structure is simple, easy to operate.
Technical solution 4: on the basis of technical solution 3, output wheel, output wheel and First Transition wheel are set on output shaft
Or second transition wheel engagement for realizing power transmitting.
Technical solution 5: on the basis of technical solution 4, output wheel is engaged with the second transition wheel for realizing power transmitting.
Technical solution 6: on the basis of technical solution 5, output shaft is equipped with and is connected with exporting axis for controlling output wheel
Or the one-way clutch disengaged.It is detached from both when output shaft revolving speed is greater than output wheel speed, when output shaft revolving speed is less than or waits
It is connected both when exporting wheel speed, so that it is guaranteed that blower and output wheel are detached from shift process, reduces shift shock.
Technical solution 7: it on the basis of technical solution 1-6 any one, is additionally provided on input shaft for controlling input shaft
The clutch connected or disconnected with pump shaft.When needing to spray water, clutch closure makes input shaft and water pump axis connection, works as needs
When stopping water spray, clutch disconnection separates input shaft with pump shaft, passes through the working condition of clutch control water pump in this way, no
Only flexible operation and energy loss is few, transmission efficiency are high.
Sweeper of the invention adopts the following technical scheme that
Technical solution 1: sweeper, the transfer box assembly including engine and transmission connection in engine output end, transfer case
Component includes transfer case, and transfer case includes shell, is rotatably equipped with input shaft and output shaft on shell, on input shaft, output shaft
Be connected separately with water pump, blower and oil pump, enclosure interior be equipped with first gear group, second gear group and for control power from
First gear group or the switching device of second gear group transmitting, the transmission ratio of first gear group are less than the transmission of second gear group
Than.
It washes when sweeping operation the utility model has the advantages that sweeper is normally carried out, passes through between switching device control input shaft and output shaft
Second gear group transmits power；When shifting gears or meeting traffic lights, engine speed is reduced, and switching device controls input shaft and output
Power is transmitted by the lesser first gear group of transmission ratio between axis, so as to avoid under the rotation speed of fan being connected with output shaft
Drop ensures that sweeper continues to collect sewage.
Technical solution 2: on the basis of technical solution 1, being set with the first driving wheel and the second driving wheel on input shaft, defeated
Enter and be equipped with transition axis between axis and output shaft, be set with First Transition wheel and the second transition wheel on transition axis, the first driving wheel with
First Transition wheel constitutes the first gear group, and the second driving wheel and the second transition wheel constitute the second gear group, switching dress
It is set to that synchronizer corresponding with the first driving wheel and the second driving wheel respectively is arranged on input shaft or is arranged on transition axis and divides
Synchronizer not corresponding with First Transition wheel and the second transition wheel.
Technical solution 3: on the basis of technical solution 2, switching device be arranged on input shaft respectively with first actively
Take turns synchronizer corresponding with the second driving wheel.Structure is simple, easy to operate.
Technical solution 4: on the basis of technical solution 3, output wheel, output wheel and First Transition wheel are set on output shaft
Or second transition wheel engagement for realizing power transmitting.
Technical solution 5: on the basis of technical solution 4, output wheel is engaged with the second transition wheel for realizing power transmitting.
Technical solution 6: on the basis of technical solution 5, output shaft is equipped with and is connected with exporting axis for controlling output wheel
Or the one-way clutch disengaged.It is detached from both when output shaft revolving speed is greater than output wheel speed, when output shaft revolving speed is less than or waits
It is connected both when exporting wheel speed, so that it is guaranteed that blower and output wheel are detached from shift process, reduces shift shock.
Technical solution 7: it on the basis of technical solution 1-6 any one, is additionally provided on input shaft for controlling input shaft
The clutch connected or disconnected with pump shaft.When needing to spray water, clutch closure makes input shaft and water pump axis connection, works as needs
When stopping water spray, clutch disconnection separates input shaft with pump shaft, passes through the working condition of clutch control water pump in this way, no
Only flexible operation and energy loss is few, transmission efficiency are high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the transfer box assembly in the specific embodiment 1 of sweeper of the invention；
Fig. 2 is the structural schematic diagram of the transfer box assembly in the specific embodiment 2 of sweeper of the invention；
In figure: 1, shell；2, input shaft；3, input flange；4, first gear group；41, the first driving wheel；42, First Transition wheel；
5, second gear group；51, the second driving wheel；52, the second transition wheel；6, synchronizer；7, transition axis；8, output shaft；81, it exports
Wheel；9, blower；10, oil pump connector sleeve；11, oil pump shaft；12, oil pump；13, one-way clutch；14, oil pump connecting flange；15, water
Pump connector sleeve；16, pump shaft；17, water pump；18, water pump connecting flange；19, clutch；20, third transition wheel.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment 1 of sweeper of the invention, the dividing in engine output end including engine and transmission connection
Dynamic box assembly, the structure of transfer box assembly is as shown in Figure 1, include transfer case, transfer case includes shell 1, rolling assembling on shell 1
There are input shaft and 2 output shafts 8, one end of input shaft 2 is connected with input flange 3, and input flange 3 is complete by transmission shaft and engine
The output flange of power power takeoff is connected, and constitutes power input source, and 2 other end of input shaft is connected with water pump 17, connects on output shaft 8
It is connected to blower 9 and oil pump 12.The first driving wheel 41 and the second driving wheel 51, input shaft 2 and output shaft 8 are set on input shaft 2
Between be equipped with transition axis 7, be set with First Transition wheel 42 and the second transition wheel 52, the first driving wheel 41 and first on transition axis 7
Transition wheel 42 constitutes first gear group 4, and the second driving wheel 51 and the second transition wheel 52 constitute second gear group 5, first gear group 4
Transmission ratio be less than second gear group 5 transmission ratio.It is right with the first driving wheel 41 and the second driving wheel 51 respectively on input shaft 2
It should be equipped with synchronizer 6, transmitted for controlling power from first gear group 4 or second gear group 5, two synchronizers can simultaneously not
Work does not work at the same time, but not works at the same time.Output wheel 81, output wheel 81 and the second transition are set on output shaft 8
52 engagement of wheel is to realize that power transmits.Output shaft 8 be equipped with for control output wheel 81 connect or disengage with output shaft 8 it is unidirectional
Clutch 13 is detached from, when the revolving speed of output shaft 8 is less than or waits both when the revolving speed of output shaft 8 is greater than the revolving speed of output wheel 81
It is connected both when the revolving speed of output wheel 81, so that it is guaranteed that blower 9 and output wheel 81 are detached from shift process, reduces shift punching
It hits.The clutch 19 connected or disconnected for controlling input shaft 2 and pump shaft 16 is additionally provided on input shaft 2.When needing to spray water,
Clutch 19 closure connect input shaft 2 with pump shaft 16, when need stop water spray when, clutch 19 disconnect make input shaft 2 and
Pump shaft 16 separates, in this way by the working condition of the control water pump 17 of clutch 19, not only flexible operation but also energy loss is few,
Transmission efficiency is high.
One end of input shaft 2 connects input flange 3, and the other end connects pump shaft 16, pump shaft 16 and the coaxial dress of input shaft 2
Match.Water pump connecting flange 18 is equipped between water pump 17 and shell 1, the both ends of water pump connecting flange 18 have seam allowance, it is ensured that water pump
The coaxial precision of axis 16 and input shaft 2.Water pump connecting flange 18 can there are many different models, are equipped with different water pumps to meet
Demand.One end of output shaft 8 connects oil pump shaft 11, oil pump shaft 11 and the coaxial assembly of output shaft 8, and the other end of output shaft 8 can be with
It is connect with blower driving wheel, blower is imparted power to by V band, can also be connect with draught fan impeller, directly drive blower.Oil
Oil pump connecting flange 14 is equipped between pump 12 and shell 1, the both ends of oil pump connecting flange 14 have seam allowance, it is ensured that 11 He of oil pump shaft
The coaxial precision of fan shaft 8.Oil pump connecting flange 14 can there are many different models, are equipped with different oil pump demands to meet.
Sweeper of the invention be normally carried out wash sweep operation when, synchronizer control input shaft and output shaft between passes through biography
Move bigger second gear group transmitting power；When wash sweep in operation process shift gears or meet traffic lights when, engine speed reduce,
Synchronizer controls and transmits power by the lesser first gear group of transmission ratio between input shaft and output shaft, so as to avoid with it is defeated
The connected rotation speed of fan decline of shaft, ensures that sweeper continues to collect sewage.
Embodiment 2: as shown in Fig. 2, with being in place of the difference of embodiment 1, synchronizer respectively corresponds the on transition axis
There are two one transition wheel and the second transition wheel are set, one is additionally provided on transition axis for engaging with the output wheel on output shaft to pass
The third transition wheel 20 of graduating power.When sweeper be normally carried out wash sweep operation when, synchronizer controls between input shaft and output shaft
Second gear group is first passed through, transmitting power is engaged with output wheel by third transition wheel 20 afterwards；It shifts gears when washing to sweep in operation process
Or when meeting traffic lights, first gear group is first passed through between synchronizer control input shaft and output shaft, passes through third transition wheel 20 afterwards
Transmitting power is engaged with output wheel.
Embodiment 3: being in place of the difference of embodiment 1, and output wheel is engaged with First Transition wheel to realize that power transmits.
When sweeper be normally carried out wash sweep operation when, first pass through second gear group between synchronizer control input shaft and output shaft, it is rear logical
It crosses output wheel and engages transmitting power with First Transition wheel；When wash sweep in operation process shift gears or meet traffic lights when, synchronizer control
First gear group is first passed through between input shaft and output shaft, and transmitting power is engaged with First Transition wheel by output wheel afterwards.
Embodiment 4: be in place of the difference of embodiment 1, be not provided with one-way clutch on output shaft, output wheel with it is defeated
Shaft connects always, possible disadvantage is that shift shock is larger in this way.
Embodiment 5: it is in place of the difference of embodiment 1, clutch, input shaft and pump shaft are not provided on input shaft
It is directly connected to, as long as possible disadvantage is that input shaft rotates in this way, pump shaft will be rotated with it, pump working is driven,
And continue water outlet outward when not needing water spray, it sweeps operation to washing and makes troubles.
The present invention also provides a kind of embodiment of transfer box assembly, wrapped in the structure of transfer box assembly and above-mentioned sweeper
The structure of the transfer box assembly contained is identical, is not repeated to describe herein.
It include transfer case in the structure of transfer case and above-mentioned sweeper the present invention also provides a kind of embodiment of transfer case
The structure of the transfer case of component is identical, is not repeated to describe herein.
Claims (10)
1. transfer case, characterized in that including shell, be rotatably equipped with input shaft and output shaft on shell, enclosure interior is equipped with the
One gear set, second gear group and power or pass through for controlling to transmit between input shaft and output shaft by first gear group
Second gear group transmits the switching device of power, and the transmission ratio of first gear group is less than the transmission ratio of second gear group.
2. transfer case according to claim 1, characterized in that be set with the first driving wheel and second on input shaft actively
Wheel is equipped with transition axis between input shaft and output shaft, First Transition wheel and the second transition wheel are set on transition axis, first actively
Wheel constitutes the first gear group with First Transition wheel, and the second driving wheel and the second transition wheel constitute the second gear group, cut
It changes the outfit to be set to and synchronizer corresponding with the first driving wheel and the second driving wheel respectively is set on input shaft or is arranged in transition axis
Upper synchronizer corresponding with First Transition wheel and the second transition wheel respectively.
3. transfer case according to claim 2, characterized in that switching device is that setting is main with first respectively on input shaft
Driving wheel and the corresponding synchronizer of the second driving wheel.
4. transfer case according to claim 3, characterized in that be set with output wheel, output wheel and the first mistake on output shaft
Ferry boat or the engagement of the second transition wheel are for realizing power transmitting.
5. transfer case according to claim 4, characterized in that output wheel is engaged with the second transition wheel for realizing power biography
It passs.
6. transfer case according to claim 5, characterized in that output shaft is equipped with to be connected for controlling output wheel and output shaft
The one-way clutch for connecing or disengaging.
7. transfer case described in -6 any one according to claim 1, characterized in that be additionally provided on input shaft for controlling input
The clutch that axis and pump shaft connect or disconnect.
8. transfer box assembly, characterized in that including transfer case, transfer case includes shell, be rotatably equipped on shell input shaft and
Output shaft, water pump, blower and oil pump are connected separately on input shaft, output shaft, and enclosure interior is equipped with first gear group, the second tooth
Wheel group and the switching device transmitted for controlling power from first gear group or second gear group, the transmission ratio of first gear group
Less than the transmission ratio of second gear group.
9. transfer box assembly according to claim 8, characterized in that be set with the first driving wheel and the second master on input shaft
Driving wheel is equipped with transition axis between input shaft and output shaft, First Transition wheel and the second transition wheel are set on transition axis, and first is main
Driving wheel and First Transition wheel constitute the first gear group, and the second driving wheel and the second transition wheel constitute the second gear group,
Switching device is that synchronizer corresponding with the first driving wheel and the second driving wheel respectively is arranged on input shaft or is arranged in transition
Synchronizer corresponding with First Transition wheel and the second transition wheel respectively on axis.
10. sweeper, characterized in that the transfer box assembly including engine and transmission connection in engine output end, transfer
Box assembly includes transfer case, and transfer case includes shell, and input shaft and output shaft, input shaft, output shaft are rotatably equipped on shell
On be connected separately with water pump, blower and oil pump, enclosure interior is equipped with first gear group, second gear group and for controlling power
The switching device transmitted from first gear group or second gear group, the transmission ratio of first gear group are less than the transmission of second gear group
Than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405463.6A CN109958739A (en) | 2017-12-22 | 2017-12-22 | Transfer case, transfer box assembly and sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405463.6A CN109958739A (en) | 2017-12-22 | 2017-12-22 | Transfer case, transfer box assembly and sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958739A true CN109958739A (en) | 2019-07-02 |
Family
ID=67019508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711405463.6A Pending CN109958739A (en) | 2017-12-22 | 2017-12-22 | Transfer case, transfer box assembly and sweeper |
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| Country | Link |
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| CN (1) | CN109958739A (en) |
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| CN106223250A (en) * | 2016-08-15 | 2016-12-14 | 青岛同辉汽车技术有限公司 | A kind of novel sweeper and sweeper operational approach thereof |
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