CN208180751U - Two grades of automatically operated retarders and automobile power assembly, electric car - Google Patents
Two grades of automatically operated retarders and automobile power assembly, electric car Download PDFInfo
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- CN208180751U CN208180751U CN201820477211.8U CN201820477211U CN208180751U CN 208180751 U CN208180751 U CN 208180751U CN 201820477211 U CN201820477211 U CN 201820477211U CN 208180751 U CN208180751 U CN 208180751U
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Abstract
The utility model relates to a kind of two grades of automatically operated retarders and automobile power assemblies, electric car.Two grades of automatically operated retarders, comprising: shell；Input shaft is arranged with input gear；Output shaft, and interval setting parallel with input shaft；Transmission gear and two grades of output gears, transmission gear are engaged with input gear, and are sequentially connected with two grades of output gears；One grade of transmission shaft, and interval setting parallel with input shaft and output shaft；One one grade of transmission gear and the 2nd 1 grade of transmission gear, the one one grade of transmission gear are engaged with two grades of output gears；One grade of output gear is engaged with the 2nd 1 grade of transmission gear；Synchronizer, synchronizer slidably to respectively with two grades of output gears and one grade of output gear clamping.Two grades of automatically operated retarder gear switch response times are short, and power interruption time is short, and power interruption is unobvious, and gear shift is smooth；The design of two mark structures, so that gear shift infrequently, improves the comfort of seating, power consumption is low；Structure is simple, reduces manufacturing cost.
Description
Technical field
The utility model relates to field of automobile, in particular to a kind of two grades of automatically operated retarders and automobile power are total
At, electric car.
Background technique
With to environmental issue gradually pay attention to and energy problem runs down, for new-energy automobile, especially
The demand of electric car is increasing.Electric car refers to the source using battery as the energy, passes through the portions such as controller, motor
Part converts electrical energy into the vehicle of mechanical movement.
Currently, scheme there are mainly two types of the speed change schemes that power system of electric automobile uses.The first scheme is that motor is straight
It drives.The program directly realizes the task of speed change using fixed reduction ratio by motor.However due to the characteristic curve of electrode,
Work efficient cannot utilize motor, consumption in high efficiency range while fixed reduction ratio is difficult that motor is made to guarantee power performance
Electricity is high.
In order to solve the deficiency of electric-machine directly-driven scheme, and use the scheme of the speed change system of conventional fuel oil car.Although the party
Case overcomes the deficiency of electric-machine directly-driven scheme, but due to motor have the characteristics that relative to engine it is wider between high efficient area,
Conventional transmissions generally have four to six gears, will cause that structure is complicated, and manufacturing cost is high, and gear shift is frequent in driving process, and
There are the inherent shortcomings of gear shift power interruption, so that riding comfort is bad.
Utility model content
Based on this, it is necessary to which for speed change system, structure is complicated, and manufacturing cost is high, and gear shift is frequent in driving process, and deposits
The inherent shortcoming of gear shift power interruption the problem of, it is simple to provide a kind of structure, reduces cost, gear shift infrequently, power interruption
Two grades of insensitive automatically operated retarders and automobile power assembly, electric car.
Two grades of automatically operated retarders, comprising:
Shell；
Input shaft, is rotatably penetrated and arranged in the shell, and the input axle sleeve is equipped with to be rotated synchronously with the input shaft
Input gear；
Output shaft is rotatably penetrated and arranged in the shell, and and interval setting parallel with the input shaft；
Transmission gear is rotationally sheathed on the output shaft, and engages with the input gear；
Two grades of output gears are rotationally sheathed on the output shaft, and are sequentially connected with the transmission gear, so that institute
It states transmission gear and two grades of output gears rotates synchronously；
One grade of transmission shaft, is rotatably penetrated and arranged in the shell, and it is parallel with the input shaft and the output shaft and
Every setting；
One one grade of transmission gear is sheathed on one grade of transmission shaft and rotates synchronously with one grade of transmission shaft, and with
Two grades of output gears engagement；
2nd 1 grade of transmission gear is sheathed on one grade of transmission shaft and rotates synchronously with one grade of transmission shaft；
One grade of output gear is rotationally set in the output shaft, and engages with the 2nd 1 grade of transmission gear；
Synchronizer, be set in the output shaft and along the output shaft slidably, the synchronizer be located at described two grades it is defeated
Out between gear and one grade of output gear, and slidably to respectively with two grades of output gears and one grade of output gear
Clamping is taken turns, so that two grades of output gears or one grade of output gear and the output shaft synchronous rotate.
Above-mentioned two-shift automatic variable speed device, when synchronizer respectively with one grade of output gear and two grades of output gear clampings when, then
Output shaft rotation is driven by one grade of output gear and two grades of output gears respectively, to realize gear switch.The gearshift procedure is only
One grade of output gear driving output shaft rotation need to be switched to two grades of output gear driving output shaft rotations or two grades of output gears
The rotation of wheel drive output shaft is switched to one grade of output gear driving output shaft rotation, and such gear switch response time is short, power
Break period is short, and power interruption is unobvious, and gear shift is smooth.The design of two mark structures, so that gear shift infrequently, improves seating
Comfort, motor are in efficient operating status always, and power consumption is low.Also, structure is simple, reduces manufacturing cost.
In one embodiment, two grades of automatically operated retarders further include shift mechanism, and the shift mechanism includes:
Screw rod is rotatably penetrated and arranged in the shell, and is arranged with thread bush on the screw rod, the screw rod with it is described defeated
Enter axis, the output shaft and the transmission shaft in parallel and interval is arranged；
Gear shift arm, both ends are sequentially connected with the thread bush and the synchronizer respectively, to drive the synchronizer along institute
State output shaft sliding；
Gear shifting motor is fixed on the shell and connect with the screw rod transmission.
In one embodiment, the transmission ratio between the input gear and one grade of output gear is greater than the input
Transmission ratio between gear and two grades of output gears.
Two grades of automatically operated retarders, comprising:
Shell；
Input shaft, is rotatably penetrated and arranged in the shell, and the input axle sleeve is equipped with to be rotated synchronously with the input shaft
Input gear；
Output shaft is rotatably penetrated and arranged in the shell, and and interval setting parallel with the input shaft；
Transmission gear is rotationally sheathed on the output shaft；
Two grades of output gears are rotationally sheathed on the output shaft, and engage with the input gear, the driving cog
Wheel is sequentially connected with two grades of output gears, so that the transmission gear and two grades of output gears rotate synchronously；
One grade of transmission shaft, is rotatably penetrated and arranged in the shell, and it is parallel with the input shaft and the output shaft and
Every setting；
One one grade of transmission gear is sheathed on one grade of transmission shaft and rotates synchronously with one grade of transmission shaft, and with
The transmission gear engagement；
And the 2nd 1 grade of transmission gear, it is sheathed on one grade of transmission shaft and is rotated synchronously with one grade of transmission shaft；
One grade of output gear is rotationally sheathed on the output shaft, and engages with the 2nd 1 grade of transmission gear；
Synchronizer, be sheathed on the output shaft and along the output shaft slidably, the synchronizer be located at described two grades it is defeated
Out between gear and one grade of output gear, and slidably to respectively with two grades of output gears and one grade of output gear
Clamping is taken turns, so that two grades of output gears or one grade of output gear and the output shaft synchronous rotate.
In one embodiment, two grades of automatically operated retarders further include shift mechanism, and the shift mechanism includes:
Screw rod is rotatably penetrated and arranged in the shell, and is arranged with thread bush on the screw rod, the screw rod with it is described defeated
Enter axis, the output shaft and the transmission shaft in parallel and interval is arranged；
Gear shift arm, both ends are sequentially connected with the thread bush and the synchronizer respectively, to drive the synchronizer along institute
State output shaft sliding；
Gear shifting motor is fixed on the shell and connect with the screw rod transmission.
In one embodiment, the transmission ratio between the input gear and one grade of output gear is greater than the input
Transmission ratio between gear and two grades of output gears.
Automobile power assembly, comprising:
Motor；And
Two grades of automatically operated retarders as described in above-mentioned any embodiment, and the shaft of the motor and the input shaft pass
Dynamic connection.
In one embodiment, the roller end of the motor is equipped with first flange, and described input shaft one end is equipped with second
Flange, the first flange are fixedly connected with the second flange by threaded fastener；Or
The shaft of the motor is sequentially connected by spline and the input shaft.
In one embodiment, the shaft of the motor and the input shaft are integrally formed.
Electric car, comprising:
Vehicle frame；
The automobile power assembly as described in above-mentioned any embodiment, the automobile power assembly are fixed on the vehicle frame.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of two grades of automatically operated retarders in the utility model first embodiment；
Fig. 2 is the structural schematic diagram of the shift mechanism of two grades of automatically operated retarders shown in FIG. 1；
Fig. 3 is the structural schematic diagram of two grades of automatically operated retarders in the utility model second embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model
The understanding of disclosure is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
The utility model provides a kind of automobile power assembly and two grades of automatically operated retarders.
Referring to Fig. 1, the automobile power assembly in the utility model first embodiment includes motor and two grades of automatic retardings
Device.Wherein, two grades of automatically operated retarders include shell (not shown), input shaft 10, output shaft 20,22, two grades of transmission gear outputs
24, one grades of gear, 30, the 1st grades of transmission shaft transmission gear, 32, the 2nd 1 grades of transmission gears, 34, one grades of output gears 26 and same
Walk device 28.
Shell mainly plays carrying with the strong feature of lighter in weight, bearing capacity by metal material die cast.
Specifically in the present embodiment, shell includes front housing and rear shell, and rear shell and front housing are detachably connected.Wherein, front housing can be passed through
And the edge screw hole of rear shell, and cooperated using bolt and screw hole, so that front housing and rear shell realization are detachably connected.
Further, positioning ring is arranged in the settable locating shaft of the inner wall of front housing, rear shell inner wall.Locating shaft and positioning ring cooperate
It can play the role of positioning front housing and rear shell, to be conducive to the raising efficiency when carrying out mould assembling operation.
Input shaft 10 is generally made of high-intensitive metal or alloy material, such as is made of steel, steel alloy.Input shaft 10
It is rotatably penetrated and arranged in shell, input shaft 10 is arranged with the input gear 11 rotated synchronously with input shaft 10.Specifically in this implementation
In example, input shaft 10 is installed on shell by bearing.Wherein, bearing and shell transition fit, and input shaft 10 and bearing mistake
It is full of cooperation.In automobile power assembly, input shaft 10 with the rotating shaft transmission of motor for connecting, so that the power of motor be introduced
In two grades of automatically operated retarders.
Specifically in the present embodiment, the roller end of motor is equipped with first flange, and 10 one end of input shaft is equipped with second flange,
First flange is fixedly connected with second flange by threaded fastener.To realize the shaft of motor and the transmission company of input shaft 10
It connects.Specifically, which can be screw bolt and nut.
In another embodiment, the shaft of motor can also be sequentially connected by spline and input shaft 10.
In another embodiment, the shaft of input shaft 10 and motor is sequentially connected by shaft coupling.At this point, convenient for will be electric
Machine is separated with two grades of automatically operated retarder realizations, consequently facilitating the maintenance of automobile power assembly.
In another embodiment, the shaft of motor and input shaft 10 are integrally formed.That is, the shaft of motor is
The input shaft 10 of two grades of automatically operated retarders, therefore be conducive to simplify the structure of automobile power assembly, and promote the reliability of transmission.
Output shaft 20 is identical as the material of input shaft 10.Moreover, output shaft 20 is rotatably penetrated and arranged in shell, and with input
Axis 10 is parallel and interval is arranged.Specifically in the present embodiment, output shaft 20 is installed on shell by bearing.
Further, transmission gear 22 and two grades of output gears 24 are provided on output shaft 20, wherein transmission gear 22 and
Two grades of output gears 24 are rotationally sheathed on output shaft 20, and transmission gear 22 is engaged with input gear 11, transmission gear 22 with
Two grades of output gears 24 are sequentially connected, so that transmission gear 22 and two grades of output gears 24 rotate synchronously.
In the present embodiment, transmission gear 22 can be sequentially connected with two grades of output gears 24 by way of clamping, thus
Realize that the two rotates synchronously.
In another embodiment, transmission gear 22 and two grades of output gears 24 can be directly solid by welding or the tight part of screw thread
Fixed connection, to realize that transmission gear 22 and two grades of output gears 24 rotate synchronously.
In another embodiment, transmission gear 22 can be integrally formed with two grades of output gears 24.
Further, one grade of output gear 26 is additionally provided on output shaft 20.One grade of output gear 26 is rotationally arranged
In output shaft 20.
One grade of transmission shaft 30 is identical as the material of input shaft 10.Moreover, one grade of transmission shaft 30 is rotatably penetrated and arranged in shell,
And and interval setting parallel with input shaft 10 and output shaft 20.Specifically, one grade of transmission shaft 30 is installed on shell by bearing.
Further, the one one grade of transmission gear 32 and the 2nd 1 grade of transmission gear 34 are provided on one grade of transmission shaft 30.
Wherein, the one one grade of transmission gear 32 and the 2nd 1 grade of transmission gear 34 be sheathed on one grade of transmission shaft 30 and with one grade of transmission shaft 30
It rotates synchronously, the one one grade of transmission gear 32 is engaged with two grades of output gears 24, the 2nd 1 grade of transmission gear 34 and one grade of output
Gear 26 engages.Specifically, the one one grade of transmission gear 32 and the 2nd 1 grade of transmission gear 34 can be driven by spline and one grade
Axis 30 is fixedly connected, and realizes that the two is rotated synchronously with one grade of transmission shaft 30.
In one embodiment, input gear 11,22, two grades of transmission gear, 24, the 1st grades of output gear transmission gear
32, the 2nd 1 grade of transmission gear 34 and one grade of output gear 26 are helical gear.Helical gear have registration height, stable transmission,
Low noise, therefore can effectively promote the performance of two grades of automatically operated retarders.
Synchronizer 28 be sheathed on output shaft 20 and along output shaft 20 slidably.In synchronizer 28 and orthodox car gearbox
28 function of synchronizer is identical.The synchronizer 28 is between two grades of output gears 24 and one grade of output gear 26, and slidably extremely
Respectively with two grades of output gears 24 and one grade of 26 clamping of output gear so that two grades of output gears 24 or one grade of output gear 26 with
Output shaft 20 rotates synchronously.It is understood that synchronizer 28 is between one grade of output gear 26 and two grades of output gears 24.
Synchronizer 28 and output shaft 20 rotate synchronously.
Specifically, when synchronizer 28 and two grades of 24 clampings of output gear, two grades of output gears 24 are synchronous with output shaft 20
Rotation.At this point, two grades of automatically operated retarders are in two grades, power arrives 22 to two grades of transmission gear along input shaft 10 to input gear 11
Output gear 24 is transmitted to the path of output shaft 20.When synchronizer 28 and one grade of 26 clamping of output gear, one grade of output gear
26 rotate synchronously with output shaft 20.At this point, two grades of automatically operated retarders are in one grade, power is arrived along input shaft 10 to input gear 11
22 to two grades of output gears of transmission gear, 24 to the 1st grades of 32 to one grade of transmission shafts of transmission gear, 30 to the 2nd 1 grades of driving cogs
34 to one grade of output gear 26 of wheel is transmitted to the path of output shaft 20.
Further, it when synchronizer 28 is neither engaged with one grade of output gear, and is not engaged with two grades of output gears, this
When, two grades of automatically operated retarders are in neutral gear.
Referring to Figure 2 together, in one embodiment, two grades of automatically operated retarders further include shift mechanism 40, the gear shift machine
Structure 40 includes screw rod 41, gear shift arm 43 and gear shifting motor 45.
Screw rod 41 is rotatably penetrated and arranged in shell, and thread bush (not shown) is arranged on screw rod 41.Specifically, screw rod 41
Shell is installed on by bearing.Wherein, screw rod 41 and thread bush form typical 41 auxiliary structure of screw rod, therefore the rotation of screw rod 41 can turn
It is melted into the linear motion of thread bush.Further, screw rod 41 is parallel with input shaft 10, output shaft 20 and transmission shaft and interval is set
It sets.
Gear shifting motor 45 is fixed on shell and is sequentially connected with screw rod 41.Specifically, gear shifting motor 45 can drive screw rod 41
Forward or reverse, so as to driving thread bush to move reciprocatingly along screw rod 41.
Gear shift arm 43 is formed by the higher material of intensity.Moreover, 43 both ends of gear shift arm respectively with thread bush and synchronizer 28
Transmission connection, to drive synchronizer 28 to slide along input shaft 10.When needing gear shift, the rotating forward of gear shift electrode drive screw rod 41 or anti-
Turn, thread bush moves and gear shift arm 43 is driven to swing.Further, the gear shift arm 43 of swing can drive synchronizer 28 to slide, and make
Itself and one grade of output gear 26 or two grades of 24 clampings of output gear, to realize gear switch.
In one embodiment, the transmission ratio between input gear 11 and one grade of output gear 26 be greater than input gear 11 with
Transmission ratio between two grades of output gears 24.Therefore, two grades then be can switch under the operating condition that climbing etc. needs large torque, and
Flat pavement running needs then to can switch to one grade under high-revolving operating condition.
In one embodiment, two grades of automatically operated retarders further include transmission control unit (TCU) and and transmission control
The vehicle speed sensor of unit electrical connection, transmission control unit is connect with the control circuit of gear shifting motor 45, for controlling gear shift
Shutdown, rotating forward and the reversion of motor 45.Specifically, when vehicle speed sensor detects that speed increases to a preset value, speed changer
Control unit controls gear shifting motor 45 forward or reverse, shifts into top gear to realize from low or first gear；When vehicle speed sensor is examined
When measuring speed and being decreased to another preset value, transmission control unit controls the reversion of gear shifting motor 45 or rotates forward, thus realize from
Top gear shifts into low or first gear, reduces the manual operation in gear shift stage, to improve gear shift efficiency.
Referring to Fig. 3, two grades of automatically operated retarders of the automobile power assembly in the utility model second embodiment.Second is real
Applying two grades of automatically operated retarders in example and two grades of retarders in first embodiment has similar structure, and difference will be specific
Description.For ease of description, the label of similar elements does not change.
In the present embodiment, input gear 11 is engaged with two grades of output gears 24, transmission gear 22 and the one one grade of transmission
Gear 32 engages.In this way, two grades of output gears 24 are synchronous with output shaft 20 when synchronizer 28 and two grades of 24 clampings of output gear
Rotation.At this point, two grades of automatically operated retarders are in two grades, power is arrived along input shaft 10 to 11 to two grades of output gears of input gear 24
It transmits in the path of output shaft 20.When synchronizer 28 and one grade of 26 clamping of output gear, one grade of output gear 26 and output shaft 20
It rotates synchronously.At this point, two grades of automatically operated retarders are in one grade, power arrives 11 to two grades of output gears of input gear along input shaft 10
24 arrive output to the one one grade of transmission gear 32 to 34 to one grade of output gear of the 2nd 1 grade of transmission gear 26 to transmission gear 22
It transmits in the path of axis 20.
In addition, the utility model also provides a kind of electric car.The electric car includes vehicle frame and any embodiment as above
In automobile power assembly.
Vehicle frame is the support construction of electric car, is generally formed by high-strength materials such as aluminium alloy or carbon fibers.Automobile is dynamic
Power assembly is fixed on vehicle frame.
Above-mentioned two grades of automatically operated retarders and automobile power assembly, electric car, when synchronizer 28 respectively with one grade of output gear
When wheel 26 and two grades of 24 clampings of output gear, then output shaft 20 is driven by one grade of output gear 26 and two grades of output gears 24 respectively
Rotation, to realize gear switch.The gearshift procedure need to only drive one grade of output gear 26 rotation of output shaft 20 to be switched to two
Shelves output gear 24 drives the rotation of output shaft 20 or two grades of output gears 24 that the rotation of output shaft 20 is driven to be switched to one grade of output
Gear 26 drives output shaft 20 to rotate, and such gear switch response time is short, and power interruption time is short, and power interruption is unobvious,
Gear shift is smooth.The design of two mark structures, so that gear shift infrequently, improves the comfort of seating, motor is in high efficiency always
Operating status, power consumption is low.Also, structure is simple, reduces manufacturing cost.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. two grades of automatically operated retarders characterized by comprising
Shell；
Input shaft, is rotatably penetrated and arranged in the shell, and the input axle sleeve is equipped with the input rotated synchronously with the input shaft
Gear；
Output shaft is rotatably penetrated and arranged in the shell, and and interval setting parallel with the input shaft；
Transmission gear is rotationally sheathed on the output shaft, and engages with the input gear；
Two grades of output gears are rotationally sheathed on the output shaft, and are sequentially connected with the transmission gear, so that the biography
Moving gear and two grades of output gears rotate synchronously；
One grade of transmission shaft is rotatably penetrated and arranged in the shell, and and interval parallel with the input shaft and the output shaft is set
It sets；
One one grade of transmission gear, be sheathed on one grade of transmission shaft and with one grade of transmission shaft rotate synchronously, and with it is described
Two grades of output gear engagements；
2nd 1 grade of transmission gear is sheathed on one grade of transmission shaft and rotates synchronously with one grade of transmission shaft；
One grade of output gear is rotationally set in the output shaft, and engages with the 2nd 1 grade of transmission gear；
Synchronizer, be set in the output shaft and along the output shaft slidably, the synchronizer is located at two grades of output gears
Wheel one grade of output gear between, and slidably to respectively with two grades of output gears and one grade of output gear card
It holds, so that two grades of output gears or one grade of output gear and the output shaft synchronous rotate.
2. two grades of automatically operated retarders according to claim 1, which is characterized in that two grades of automatically operated retarders further include changing
Gear mechanism, the shift mechanism include:
Screw rod is rotatably penetrated and arranged in the shell, and is arranged with thread bush on the screw rod, the screw rod and the input
Axis, the output shaft and the transmission shaft are parallel and interval is arranged；
Gear shift arm, both ends are sequentially connected with the thread bush and the synchronizer respectively, to drive the synchronizer along described defeated
Shaft sliding；
Gear shifting motor is fixed on the shell and connect with the screw rod transmission.
3. two grades of automatically operated retarders according to claim 1, which is characterized in that the input gear and described one grade output
Transmission ratio between gear is greater than the transmission ratio between the input gear and two grades of output gears.
4. two grades of automatically operated retarders characterized by comprising
Shell；
Input shaft, is rotatably penetrated and arranged in the shell, and the input axle sleeve is equipped with the input rotated synchronously with the input shaft
Gear；
Output shaft is rotatably penetrated and arranged in the shell, and and interval setting parallel with the input shaft；
Transmission gear is rotationally sheathed on the output shaft；
Two grades of output gears are rotationally sheathed on the output shaft, and engage with the input gear, the transmission gear with
Two grades of output gears transmission connection, so that the transmission gear and two grades of output gears rotate synchronously；
One grade of transmission shaft is rotatably penetrated and arranged in the shell, and and interval parallel with the input shaft and the output shaft is set
It sets；
One one grade of transmission gear, be sheathed on one grade of transmission shaft and with one grade of transmission shaft rotate synchronously, and with it is described
Transmission gear engagement；
2nd 1 grade of transmission gear is sheathed on one grade of transmission shaft and rotates synchronously with one grade of transmission shaft；
One grade of output gear is rotationally sheathed on the output shaft, and engages with the 2nd 1 grade of transmission gear；
Synchronizer, be sheathed on the output shaft and along the output shaft slidably, the synchronizer is located at two grades of output gears
Wheel one grade of output gear between, and slidably to respectively with two grades of output gears and one grade of output gear card
It holds, so that two grades of output gears or one grade of output gear and the output shaft synchronous rotate.
5. two grades of automatically operated retarders according to claim 4, which is characterized in that two grades of automatically operated retarders further include changing
Gear mechanism, the shift mechanism include:
Screw rod is rotatably penetrated and arranged in the shell, and is arranged with thread bush on the screw rod, the screw rod and the input
Axis, the output shaft and the transmission shaft are parallel and interval is arranged；
Gear shift arm, both ends are sequentially connected with the thread bush and the synchronizer respectively, to drive the synchronizer along described defeated
Shaft sliding；
Gear shifting motor is fixed on the shell and connect with the screw rod transmission.
6. two grades of automatically operated retarders according to claim 4, which is characterized in that the input gear and described one grade output
Transmission ratio between gear is greater than the transmission ratio between the input gear and two grades of output gears.
7. automobile power assembly characterized by comprising
Motor；And
Such as above-mentioned two grades of automatically operated retarders as claimed in any one of claims 1 to 6, and the shaft of the motor and the input shaft
Transmission connection.
8. automobile power assembly according to claim 7, which is characterized in that the roller end of the motor is equipped with the first method
Orchid, described input shaft one end are equipped with second flange, the first flange and the second flange and connect by the way that threaded fastener is fixed
It connects；Or
The shaft of the motor is sequentially connected by spline and the input shaft.
9. automobile power assembly according to claim 7, which is characterized in that the shaft of the motor and the input shaft one
It is body formed.
10. electric car characterized by comprising
Vehicle frame；
Such as the described in any item automobile power assemblies of the claims 7 to 9, the automobile power assembly is fixed on the vehicle
Frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820477211.8U CN208180751U (en) | 2018-04-04 | 2018-04-04 | Two grades of automatically operated retarders and automobile power assembly, electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820477211.8U CN208180751U (en) | 2018-04-04 | 2018-04-04 | Two grades of automatically operated retarders and automobile power assembly, electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208180751U true CN208180751U (en) | 2018-12-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113929000A (en) * | 2021-09-28 | 2022-01-14 | 中联重科股份有限公司 | Hoisting mechanism and crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113929000A (en) * | 2021-09-28 | 2022-01-14 | 中联重科股份有限公司 | Hoisting mechanism and crane |
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