CN207648066U - A kind of heavy duty contiuously variable transmission - Google Patents
A kind of heavy duty contiuously variable transmission Download PDFInfo
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- CN207648066U CN207648066U CN201721444687.3U CN201721444687U CN207648066U CN 207648066 U CN207648066 U CN 207648066U CN 201721444687 U CN201721444687 U CN 201721444687U CN 207648066 U CN207648066 U CN 207648066U
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- gear
- centre wheel
- worm
- variable transmission
- wheel
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Abstract
The utility model is related to gear stepless speed changing transmission devices, belong to contiuously variable transmission technical field.A kind of heavy duty contiuously variable transmission, including engine base, two groups of trains, worm gear, worm screw, one group of connection gear, coupling clutch and output shaft；It is characterized in that：The train all includes two centre wheels, planet carrier and planetary gear；Two centre wheels of one of which train, respectively control terminal centre wheel and output end centre wheel；Control terminal centre wheel is fixedly connected with the worm gear, and worm screw is installed on engine base；Output end centre wheel is fixedly and coaxially connected with a centre wheel in another set train.The advantageous effect that the utility model obtains is that, due to taking full advantage of the distinctive mechanical property of worm and gear under cyclic train and back drive condition, transmission could be completed all by gear with speed change, and transmission capacity is greatly improved.
Description
Technical field
The utility model is related to gear stepless speed changing transmission devices, belong to contiuously variable transmission technical field.
Background technology
Currently, the speed changer that large-scale, heavy vehicle uses, is still the gear-box for needing gear shift.Heavy mechanical equipment example
As mine belt conveyor reaches soft using the device of the compositions such as hydraulic pressure, viscous liquid, wet type friction braking, multiple stage gear reduction machine
The purpose start, accelerate, to run slowly, it is bulky and hulking, it is very uneconomical.
Contiuously variable transmission can make the startup of vehicle and equipment more stable more smoothly, and acceleration and deceleration are faster more efficient, technology
On it is more advanced.But existing contiuously variable transmission is not suitable for oversize vehicle and equipment due to that cannot transmit sufficiently large torque.
Relative to fluid power, electric force stepless speed variator, mechanical continuously-variable transmission has stronger versatility.
Under normal conditions, contiuously variable transmission is connected between power and load.Speed changer itself, inside special speed changer
Speed change component, it is necessary to have sufficiently large bearing capacity could modulate the rotary speed of power, could transmit sufficiently large torsion
Square.
In order to convey powerful torque, it is necessary to provide the support of sufficiently large mechanical energy, fluid power or electromagnetic force, technically
It is difficult to carry out, it is also difficult to take effect.Limitation in structure, cause the indexs such as the allowable torque of known technology far below oversize vehicle and
The applicable requirement of mechanical equipment.
Invention content
The purpose of this utility model is to provide one kind for large-scale heavy vehicle, big machinery there is high-power torque to transmit
Ability, small-power variable speed control, simple in structure, versatile mechanical heavily loaded contiuously variable transmission, in order to reach this
Purpose uses new structure design and implementation method.
New technical solution includes：
A kind of heavy duty contiuously variable transmission, including engine base, two groups of trains, worm gear, worm screw, one group of connection gear, shaft coupling clutch
Device and output shaft；It is characterized in that：The train all includes two centre wheels, planet carrier and planetary gear；One of which train
Two centre wheels, respectively control terminal centre wheel 3 and output end centre wheel 6；Control terminal centre wheel 3 is fixed with the worm gear 2 to be connected
It connects, worm screw 1 is installed on engine base；Output end centre wheel 6 is fixedly and coaxially connected with a centre wheel 12 in another set train；In
Heart wheel 12, planet carrier 15, another centre wheel 14 sequentially coaxially configure, planetary gear connection；One group of connection gear, including
Roller gear 7, intersection shaft gear, secondary worm screw 10, secondary worm gear 11, are linked in sequence；Roller gear 7, intersection shaft gear and secondary worm screw
10 are mounted on planet carrier 4, and roller gear 7 is engaged with planetary gear 5；Secondary worm gear 11 is fixedly and coaxially connected with planet carrier 15；In
The connection of heart wheel 12, centre wheel 14 and output shaft all uses coupling clutch.
In the mechanism that wherein one group of train, worm and gear form, power is inputted from planet carrier, from output end centre wheel
Upper output；Worm screw is the gearratio control end of speed changer, and control signal is provided by control device.Moment of face keeps worm and gear reversed
Transmission, worm-gear self-locking when driven member worm screw is static；Control worm screw can control the rotary speed of worm gear.When worm gear rotates, control
End centre wheel processed is rotated with worm gear, planet carrier, planetary gear collective effect under, obtained on output end centre wheel differential
Output.
It controls signal to input from worm screw, control terminal centre wheel executes variable speed operation, and torque is isolated by worm screw on wheel, to control
The influence of device is very little.The worm and gear and engine base of back drive condition, carry whole active forces, to be high-power
The conveying of torque creates condition.
In the state of worm and gear reverse drive, control worm screw to control the rotary speed of worm gear do not need it is prodigious
Power can overcome self-locking friction that can be competent at.
Control device can be low power stepless speed-change motor, mechanical transmission or other stepless speed change devices.
The mechanical negative-feedback being made of another set train, one group of connection gear, coupling clutch, output shaft automatically controls
System, when driving loads or is supported traction, automatic connection or reversion；It is fixed with the machine feedback of load condition linkage
The direction of moment of face on planetary gear, so that it is guaranteed that the back drive condition of worm and gear is constant；It not only realizes high-power
The gear of power conveys, and the power for making control terminal need, and all-the-time stable has reached big work(within the scope of one little
The purpose of rate gear small-power control.
Planet carrier 15 is fixedly and coaxially connected with secondary worm gear 11, is driven by planet carrier 4 and planetary gear 5.
Output end centre wheel 6, planet carrier 15, synchronous rotary in the same direction.
The coupling clutch is made of two axle sleeves of axial alignment, is fixedly connected respectively with centre wheel and output shaft；
Shaft room has axial tooth and slot, mutually chimeric；Tooth narrow slot is wide, can be with engagement in rotation or disengaging.
The coupling clutch, can also be made of inner ring and outer ring, there is intermeshing key and slot between inner ring and outer ring,
Key narrow slot is wide, can be with engagement in rotation or disengaging；Outer ring is fixedly and coaxially connected with centre wheel, and inner ring is fixedly connected with output shaft.Outside
Circle and inner ring can directly be formed on centre wheel or output shaft.
Two axle sleeves being fixedly connected with output shaft, can be configured to a component；It fixes and connects with two centre wheels respectively
The axle sleeve connect cannot engage connection with the axle sleeve on output shaft simultaneously on rigging position.
Output shaft and two centre wheels, can only select a connection；It connect with a centre wheel when lag, is detached from when advanced, with
Another centre wheel connects.
One group of connection gear, wherein intersection shaft gear, secondary worm gear worm screw can be replaced by roller gear.
A kind of realization of heavy duty contiuously variable transmission, at least has：The gear of one group of epicyclic wheel combination worm and gear composition passes
Dynamic, gear shift and speed control mechanism；The automatic control system of Worm Wheel System state.
The automatic control system can also be the electrical, comparison of hydraulic control, connection, switching device.
Feature of the cyclic train with gear drive, gear shift.Under back drive condition, driven member worm screw controls worm gear
Rotary speed do not need prodigious power, otherwise modulate the rotary speed of high-power torque, it is desirable to sufficiently large power.
For the method that epicyclic wheel contiuously variable transmission configures worm and gear controller and Worm Wheel System state automatic control system, make machine
Tool formula contiuously variable transmission has the feature of gear drive, gear stepless speed changing, small-power control, it is no longer necessary to powerful energy
It supports, realizes the heavy duty transmission of contiuously variable transmission.
The advantageous effect that the utility model obtains is, due to taking full advantage of snail under cyclic train and back drive condition
The distinctive mechanical property of worm and gear, transmission could be completed all by gear with speed change, and transmission capacity has obtained significantly carrying
It rises.Power very little is controlled, efficiency is improved, reduces energy consumption.New technology is simple in structure, mechanical with versatility, practicability
Characteristic feature is not only applicable to common vehicle and machinery and a kind of new is suitable for large-scale heavy vehicle and big machinery etc.
The heavily loaded contiuously variable transmission of heavy equipment.
Description of the drawings
Fig. 1：Heavily loaded contiuously variable transmission structure diagram；
In figure：1, worm screw；2, worm gear；3, control terminal centre wheel；4, planet carrier；5, planetary gear；6, output end centre wheel；
7, roller gear；8, intersect shaft gear；9, intersect shaft gear；10, secondary worm screw；11, secondary worm gear；12, centre wheel；13, planet tooth
Wheel；14, centre wheel；15, planet carrier；16, coupling clutch；17, coupling clutch；18, output shaft.
Fig. 2：Coupling clutch schematic diagram, in figure：
21, the axle sleeve of coupling clutch 16 is fixedly connected with centre wheel 12；22, another axle sleeve of coupling clutch 16,
It is fixedly connected with output shaft；
23, the axle sleeve of coupling clutch 17 is fixedly connected with centre wheel 14；24, another axle sleeve of coupling clutch 17,
It is fixedly connected with output shaft.
Specific implementation mode
Specific implementation mode is as shown in Figure 1.
Worm gear 2, control terminal centre wheel 3 are fixedly and coaxially connected.Output end centre wheel 6, centre wheel 12 are fixedly and coaxially connected.Row
Star gear 5,7 engaged transmission of roller gear；Roller gear 7, intersection shaft gear 8, intersection shaft gear 9, the secondary installation of worm screw 10 are expert at
In carrier 4, it is linked in sequence；Secondary worm gear 11, planet carrier 15 are fixedly and coaxially connected；Output end centre wheel 6, planet carrier 15 are synchronous in the same direction
Rotation；Planetary gear connects centre wheel 12 and centre wheel 14, and coupling clutch 16 connects centre wheel 12 and output shaft, shaft coupling from
Clutch 17 connects centre wheel 14 and output shaft.
Worm screw 1：Gearratio control end, control signal input.
Power is inputted from planet carrier 4,
Through output end centre wheel 6, centre wheel 12, coupling clutch 16, from output on-axis output；Or：
Through output end centre wheel 6, centre wheel 12, planetary gear 13, centre wheel 14, coupling clutch 17, again from output shaft
Output.
The engagement or disengaging of coupling clutch 16, coupling clutch 17 depend on the load condition on output shaft.
Load drive or is drawn output shaft, i.e., the rotary speed of output shaft relative to the lag of output end centre wheel 6 or
It is circumferentially displaced just to will produce when advanced.The engagement and disengaging of coupling clutch, are automatically selected by the displacement of different directions.
Fig. 2 is coupling clutch organigram.
Coupling clutch 16 and 17 is made of axle sleeve 21,22 and axle sleeve 23 and 24 respectively.On axle sleeve 21,22,23,24 all
With teeth and slot.Axle sleeve 22,24 can be configured to a component, is fixedly connected with output shaft.
Axle sleeve 21 is fixedly and coaxially connected with centre wheel 12, and axle sleeve 23 is fixedly and coaxially connected with centre wheel 14.
Axle sleeve 21 is engaged with 22 when load is driven, and is detached from the axle sleeve 23 and 24 of 21 synchronous rotary of axle sleeve；Loading speed
When advanced, axle sleeve 22 and 21 is detached from, and axle sleeve 24 is engaged with 23, and axle sleeve 21 inverts.
Claims (7)
1. a kind of heavy duty contiuously variable transmission, including engine base, two groups of trains, worm gear, worm screw, one group of connection gear, coupling clutch
And output shaft；It is characterized in that：The train all includes two centre wheels, planet carrier and planetary gear；The two of one of which train
A centre wheel, respectively control terminal centre wheel (3) and output end centre wheel (6)；Control terminal centre wheel (3) and the worm gear (2)
It is fixedly connected, worm screw (1) is installed on engine base；Output end centre wheel (6) and a centre wheel (12) in another set train are same
Axis is fixedly connected；Centre wheel (12), planet carrier (15), another centre wheel (14) sequentially coaxially configure, planetary gear connection；Institute
One group of connection gear is stated, including roller gear (7), intersection shaft gear, secondary worm screw (10), secondary worm gear (11), are linked in sequence；Cylinder
Gear (7), intersection shaft gear and secondary worm screw (10) are mounted on planet carrier (4), and roller gear (7) is engaged with planetary gear (5)；
Secondary worm gear (11) is fixedly and coaxially connected with planet carrier (15)；The connection of centre wheel (12), another centre wheel (14) and output shaft,
All use coupling clutch.
2. a kind of heavily loaded contiuously variable transmission as described in claim 1, it is characterized in that：Output end centre wheel (6), planet carrier (15),
Synchronous rotary in the same direction.
3. a kind of heavily loaded contiuously variable transmission as described in claim 1, it is characterized in that：The coupling clutch, by two axial rows
The axle sleeve of row forms, and is fixedly connected respectively with centre wheel and output shaft；Shaft room has axial tooth and slot, mutually chimeric；Tooth is narrow
Groove width, can be with engagement in rotation or disengaging.
4. a kind of heavily loaded contiuously variable transmission as claimed in claim 3, it is characterized in that：The coupling clutch, is fixed with output shaft
Two axle sleeves of connection, can be configured to a component；The axle sleeve being fixedly connected respectively with two centre wheels, on rigging position
Cannot connection be engaged with the axle sleeve on output shaft simultaneously.
5. a kind of heavily loaded contiuously variable transmission as described in claim 1, it is characterized in that：Output shaft and two centre wheels, can only select one
Connection；It connect with a centre wheel when lag, is detached from when advanced, is connect with another centre wheel.
6. a kind of heavily loaded contiuously variable transmission as described in claim 1, it is characterized in that：One group of connection gear, wherein concurrent aces
Gear, secondary worm gear worm screw can be replaced by roller gear.
7. a kind of heavily loaded contiuously variable transmission as described in claim 1, it is characterized in that：At least have：One group of epicyclic wheel combination worm gear
Gear drive, gear shift and the speed control mechanism of worm screw composition；The automatic control system of Worm Wheel System state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444687.3U CN207648066U (en) | 2017-11-02 | 2017-11-02 | A kind of heavy duty contiuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444687.3U CN207648066U (en) | 2017-11-02 | 2017-11-02 | A kind of heavy duty contiuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207648066U true CN207648066U (en) | 2018-07-24 |
Family
ID=62885235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721444687.3U Active CN207648066U (en) | 2017-11-02 | 2017-11-02 | A kind of heavy duty contiuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207648066U (en) |
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2017
- 2017-11-02 CN CN201721444687.3U patent/CN207648066U/en active Active
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