CN105546054B - A kind of power takeoff device - Google Patents
A kind of power takeoff device Download PDFInfo
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- CN105546054B CN105546054B CN201510944103.8A CN201510944103A CN105546054B CN 105546054 B CN105546054 B CN 105546054B CN 201510944103 A CN201510944103 A CN 201510944103A CN 105546054 B CN105546054 B CN 105546054B
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- gear
- gearshift
- power
- jackshaft
- input shaft
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Classifications
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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
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
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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
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/10—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature
-
- 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
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
-
- 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
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
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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
- F16H61/0262—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 the signals being hydraulic
- F16H61/0265—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 the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
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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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
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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
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
Abstract
The present invention relates to a kind of power takeoff device, including：Power take-off gear case, input shaft, output shaft, at least a jackshaft, at least two pairs of speed increasing gear trains and gearshift controlling organization；Power take-off gear case is fixed on vehicle frame；Input shaft, it is rotatably arranged in power take-off gear case, is connected with engine.It is arranged in power take-off gear case output shaft rotation, is connected with generator；At least a jackshaft is rotatably arranged in power take-off gear case, and is disposed in parallel between input shaft and output shaft；On input shaft, driven gear is fixed at least on a jackshaft driving gear empty set of the first speed increasing gear train at least two pairs of speed increasing gear trains.Gearshift controlling organization is arranged in power take-off gear case.The power takeoff device can make power takeoff generation unit rotating speed reach 8000r/min, band gear switch function, prevent maloperation gearshift from causing power takeoff to damage, avoid load generator from causing power takeoff to damage when reverse heavy shock loads be present.
Description
Technical field
The present invention relates to technical field of vehicle, more particularly to a kind of power takeoff device.
Background technology
At present, power takeoff used in dress system is mostly low speed power takeoff or gear-box on Off-road vehicle chassis, and power taking is defeated
Enter the power taking mouth from engine or speed changer or transfer gear, power taking input speed is generally not more than 2000r/min, power taking output
Rotating speed is relatively low, is generally not more than 3000r/min.
Power takeoff of the prior art is unable to reach specific occasion generating rotating speed 8000r/min requirement, by mistake gearshift behaviour
Power takeoff damage is easily caused, the reverse impact load of load generator is larger when input power interrupts, and easily causes power taking
Device failure.
The content of the invention
A kind of power takeoff device that the application provides, is solved or part solves power takeoff in the prior art and can not reached
To specific occasion generate electricity rotating speed 8000r/min requirement technical problem, realize power takeoff generation unit rotating speed and reach 8000r/min, take
Power mouth band gear switch function, and can prevent maloperation gearshift from causing power takeoff to damage, after input power interrupts, avoid load from sending out
Motor causes the technique effect that power takeoff damages when reverse heavy shock loads be present.
This application provides a kind of power takeoff device, it is arranged on the vehicle frame of vehicle, for the power of engine to be provided
To generator；The generator and the engine are fixed on the vehicle frame；The power takeoff device includes：
Power take-off gear case, it is fixed on the vehicle frame；
Input shaft, it is rotatably arranged in the power take-off gear case；The input shaft is connected with the engine, in the hair
Motivation is rotated by；
Output shaft, it is rotatably arranged in the power take-off gear case, is connected with the generator；
An at least jackshaft, be rotatably arranged in the power take-off gear case, and be disposed in parallel in the input shaft and
Between the output shaft；
At least two pairs of speed increasing gear trains, the driving gear of the first speed increasing gear train at least two pairs of speed increasing gear trains
For empty set on the input shaft, driven gear is fixed on described at least on a jackshaft, at least two pairs of speed increasing gear trains
In the driving gear of the second speed increasing gear train be fixed on described at least on a jackshaft, driven gear is fixed on the output
On axle；
Gearshift controlling organization, is arranged in the power take-off gear case；The gearshift controlling organization includes：Cylinder, piston, change
Gear shaft, fork and synchronizer；The cylinder offers gearshift air inlet and moves back gear air inlet, passes through the gearshift air inlet or institute
State move back gear air inlet be filled with compressed gas into the cylinder；The piston is arranged in the cylinder；The shifting shaft and institute
Piston is stated to be fixedly connected；The fork is fixedly connected with the shifting shaft；The synchronizer is set on the input shaft, with institute
State fork connection；The driving gear of first speed increasing gear train can be fixedly connected by the synchronizer with the input shaft；
Wherein, the compressed gas enters the gearshift air inlet and drives piston sliding, the shifting shaft, described pulls out
Fork and the synchronizer follow the piston to slide, and make first speed increasing gear train after the synchronizer sliding setpoint distance
Driving gear is fixedly connected with the input shaft, and the input shaft passes through described at least two pairs from the power that the engine obtains
Speed increasing gear train speedup is delivered to the generator by the output shaft again.
Preferably, the power take-off gear case is additionally provided with output power taking mouth I and output power taking mouth II；
The power takeoff device also includes：Belt wheel and power transmission shaft；The belt wheel is arranged in the output power taking mouth I；
One end of the input shaft is fixedly connected on the side of the belt wheel, and one end of the power transmission shaft is fixedly connected on institute
The opposite side of belt wheel is stated, the other end of the power transmission shaft is connected with the power taking mouth of the engine；
The other end of the input shaft is arranged in the output power taking mouth II；
Wherein, the power of the engine is delivered on the belt wheel and the input shaft by the power transmission shaft；The external world is negative
After carrying the connection output power taking of the output power taking mouth I or described mouth II, the power of the input shaft is obtained.
Preferably, the power takeoff device includes：3 jackshafts and 4 pairs of speed increasing gear trains；
3 jackshafts include：Jackshaft I, jackshaft II and jackshaft III；The jackshaft I and the input shaft
It is adjacent；The jackshaft III is adjacent with the output shaft；The jackshaft II be located at the jackshaft I and the jackshaft III it
Between；
4 pairs of speed increasing gear trains include：1 grade of gear pair, 2 grades of gear pairs, 3 grades of gear pairs and 4 grades of gear pairs；
1 grade of gear pair includes：The driving gear z1 and driven gear z2；The driving gear z1 empty sets are described
On input shaft；The driven gear z2 is fixed on the jackshaft I；
2 grades of gear pairs include：Driving gear z3 and driven gear z4；The driving gear z3 is fixed on the centre
On axle I；The driven gear z4 is fixed on the jackshaft II；
3 grades of gear pairs include：Driving gear z5 and driven gear z6；The driving gear z5 is fixed on the centre
On axle II；The driven gear z6 is fixed on the jackshaft III；
4 grades of gear pairs include：Driving gear z7 and driven gear z8；The driving gear z7 is fixed on the centre
On axle III；The driven gear z8 is fixed on the output shaft.
Preferably, the power takeoff device also includes：Unilateral bearing；
The unilateral bearing is set on the jackshaft I；The driving gear z3 is set on the unilateral bearing；
The gearratio of 1 grade of gear pair is 0.8421；
The gearratio of 4 grades of gear pairs is 0.3816；
2 grades of gear pairs and 3 grades of gear pairs are identical with the gearratio of 1 grade of gear pair.
Preferably, the driving gear z1 and driven gear z2 gear ratio is 38:32；
The driving gear z3 and driven gear z4 gear ratio is 38:32；
The driving gear z5 and driven gear z6 gear ratio is 38:32；
The driving gear z7 and driven gear z8 gear ratio is 76:29.
Preferably, the gearshift controlling organization also includes：
Gearshift magnetic valve, it is arranged on the tracheae between extraneous source of the gas and the gearshift air inlet；
Shift switch, it is connected with the gearshift magnetic valve；
Gear magnetic valve is moved back, is arranged on extraneous source of the gas and the tracheae moved back between gear air inlet；
Position switch is moved back, is connected with the gear magnetic valve that moves back；
Wherein, the piston forms two chambers with the cylinder；The gearshift air inlet is located in one of the chamber
Room, the gear air inlet that moves back are located at another chamber；The shift switch is pressed, the gearshift magnetic valve is opened, described
Compressed gas enters in the chamber, starts work of shifting gears；Position switch is moved back described in pressing, the gear magnetic valve that moves back is opened, described
Compressed gas enters another described chamber, starts to move back gear work.
Preferably, the gearshift controlling organization also includes：
Gearshift travel switch, is arranged in the power take-off gear case；The gearshift travel switch is connected by wire to be indicated
Lamp；After the completion of the gearshift, the shifting shaft triggers the gearshift travel switch, lights the indicator lamp；
Rotating speed measring part, it is arranged on the engine, the rotating speed of the engine can be detected and produce tach signal；
Control unit, magnetic valve, the Rotating speed measring part and the gearshift row are kept off with the gearshift magnetic valve, described move back
Cheng Kaiguan connections；
Wherein, described control unit cuts off the gearshift magnetic valve after receiving the signal of the gearshift travel switch；It is described
Control unit controls the gearshift magnetic valve and the gear magnetic valve that moves back to be kept switched off state after receiving the tach signal.
Preferably, the cylinder includes：Cylinder body and cylinder cap；
The cylinder body is fixedly connected to form the chamber of inner sealing with the cylinder cap；The chamber is divided into by the piston
The chamber I and chamber II of sealing；The gearshift air inlet connects with the chamber I；It is described to move back gear air inlet and the chamber II
Connection；
The gearshift controlling organization also includes：Locking casing, lock pin, spring, steel ball and transition nuts；
The locking casing is fixedly connected with the cylinder body；The locking casing offers chute；The chute with it is described
Chamber I connects；
The lock pin is slidably arranged in the locking casing, and the chamber I is hedged off from the outer world；The lock pin can be along institute
State chute sliding；
The spring is arranged in the chute；The lower end of the spring extrudes the lock pin；
The steel ball is arranged in the chute, positioned at the top of the spring；
The transition nuts are fixedly connected with the shifting shaft；Stopper slot is offered in the transition nuts；The transition
It is in inclined-plane that nut end, which is set, and the inclined-plane is located at the side of the stopper slot；
Wherein, the lock pin is fallen into the stopper slot；When carrying out gearshift work, compressed gas is filled with the chamber I
Body, lock pin slides along the chute described in the compressed gas-driven, after the lock pin leaves the stopper slot, the compressed gas
Body drives the piston elongation, then completes gearshift；When move back gear work, the elastic force of the spring extrudes the lock pin
On the inclined-plane of the transition nuts；Compressed gas is filled with the chamber II, piston described in the compressed gas-driven shortens,
The lock pin slides along the chute, while the lock pin slides along the inclined-plane, after the lock pin falls into the stopper slot, after
And complete to move back gear.
Preferably, the gearshift controlling organization also includes：
Gear travel switch is moved back, is fixed in the chute of the locking casing, positioned at the top of the steel ball；
Grade travel switch that moves back is connected with described control unit；
Wherein, after the lock pin falls into the stopper slot, the steel ball separates with the gear travel switch that moves back, described to move back gear
Travel switch sends a signal to described control unit, and gear magnetic valve is moved back described in described control unit control and is disconnected, gear is moved back in completion.
Preferably, the power takeoff device also includes：
Oil sump, it is arranged on the bottom of the power take-off gear case；
Oil pump, it is connected with the oil sump；
Radiator, it is connected with the oil pump；
Oil pipe, the oil pipe include main oil pipe and Duo Gen oil distributing pipes；The main oil pipe is connected with the radiator；It is described more
The input shaft, the output shaft, the jackshaft, the speed increasing gear train and the list are guided in the outlet of root oil distributing pipe respectively
To the position of bearing.
One or more technical schemes provided herein, have at least the following technical effects or advantages：
1st, as a result of the power by input shaft acquisition engine, and an at least jackshaft and at least two pairs are passed through
The power speedup of speed increasing gear adjutant's input shaft is delivered to output shaft, and power is obtained after generator connection output shaft.By taking
Gearshift controlling organization is set in powershift gear case, gearshift controlling organization by gear shift operation make generator by output shaft, jackshaft,
Speed increasing gear train and input axis connection.So, efficiently solve power takeoff of the prior art and be unable to reach specific occasion hair
The technical problem of electric rotating speed 8000r/min requirements, realizes power takeoff generation unit rotating speed and reaches 8000r/min, power takeoff device band shelves
The technique effect of position handoff functionality.
2nd, as a result of with gearshift magnetic valve, move back the gearshift control of gear magnetic valve, Rotating speed measring part and control unit
Mechanism processed, control unit and gearshift magnetic valve, move back gear magnetic valve and Rotating speed measring part be connected, control unit reception Rotating speed measring
After the tach signal (representing that engine has been started up) of part, control gearshift magnetic valve is kept switched off shape with gear magnetic valve is moved back
State, gearshift can not be performed gearshift again or be moved back gear work by mechanical locking.So, efficiently solve and change by mistake in the prior art
Gear operation easily causes the technical problem of power takeoff damage, and realizing the power takeoff device can prevent maloperation gearshift from causing power taking
The technique effect of device damage.
3rd, unilateral bearing is set as a result of between the driving gear z3 and jackshaft I on jackshaft I, works as input shaft
Power when interrupting (input power disappearance) suddenly, the load and rotary inertia due to output shaft are larger, cause shock loading
It is larger, when its exceed unilateral bearing maximum bearing torque when, unilateral bearing idle running to output shaft, each jackshaft and it is each to increase
Fast gear pair is protected.So, after efficiently solving power takeoff input power interruption of the prior art, power taking is easily caused
The technical problem of device failure, realizing the power takeoff device has stoppage protection function, after input power interruption, is avoided that load
Generator causes the technique effect that power takeoff damages when reverse heavy shock loads be present.
Brief description of the drawings
Fig. 1 is the structural representation of power takeoff device provided in an embodiment of the present invention；
Fig. 2 is the diagrammatic cross-section of the power take-off gear case of power takeoff device in Fig. 1；
Fig. 3 is the cross-sectional schematic of the gearshift controlling organization of power takeoff device in Fig. 1；
Fig. 4 is the fundamental diagram of power takeoff device in Fig. 1；
Fig. 5 is the fundamental diagram of the gearshift controlling organization of power takeoff device in Fig. 1.
(part that each label represents in diagram is followed successively by：1 power transmission shaft, 2 mounting brackets, 3 power takeoff devices, 4 lubricate and dissipated
Hot systems, 5 generators, 6 generator Auxiliary supports, 7 power take-off gear casees, 8 driving gear z1,9 belt wheels, 10 input shafts, among 11
Axle I, 12 driven gear z2,13 jackshafts II, 14 driving gear z5,15 jackshafts III, 16 driving gear z7,17 output shafts, 18
Driven gear z6,19 driven gear z4,20 driving gear z3,21 oil pumps, 22 unilateral bearings, 23 filter screen assemblies, 24 synchronizers, 25
Cylinder cap, 26 transition nuts, 27 pistons, 28 cylinders, 29 shifting shafts, 30 shift forks, 31 gearshift travel switches, 32 move back gear travel switch,
33 steel balls, 34 springs, 35 lock pins, 36 main oil pipes, 37 oil sumps, 38 radiators, 39 indicator lamps, 40 move back position switch, 41 shift switch,
Gear air inlet is moved back in 42 gearshift air inlets, 43)
Embodiment
A kind of power takeoff device that the embodiment of the present application provides, is solved or part solves power taking dress of the prior art
The technical problem for the requirement for being unable to reach specific occasion generating rotating speed 8000r/min is put, by setting input shaft to obtain engine
Power, and output is delivered to by least power speedup of a jackshaft and at least two pairs speed increasing gear adjutant's input shafts
Axle, generator connect and obtain the power of output shaft.By setting gearshift controlling organization in power take-off gear case, control machine of shifting gears
Structure makes generator pass through output shaft, jackshaft, speed increasing gear train and input axis connection by gear shift operation.Realize power takeoff generation unit
Rotating speed reaches 8000r/min, power taking mouth band gear switch function, and can prevent maloperation gearshift from causing power takeoff to damage, and inputs
After power interruption, load generator is avoided to cause the technique effect of power takeoff damage when reverse heavy shock loads be present.
Referring to attached Fig. 1 and 2, the embodiment of the present application provides a kind of power takeoff device 3, is arranged on the vehicle frame of vehicle, uses
In by the power of engine and supply generator 5；Generator 5 and engine are fixed on vehicle frame；The power takeoff device 3 includes：
Power take-off gear case 7, input shaft 10, output shaft 17, at least a jackshaft, at least two pairs of speed increasing gear trains and gearshift control machine
Structure.
Referring to accompanying drawing 2, power take-off gear case 7 is fixed on vehicle frame, and power take-off gear case 7 is provided with speedup power taking mouth.Input shaft
10 are rotatably arranged in power take-off gear case 7, and input shaft 10 is connected with engine, in being rotated by for generator.Output shaft 17
It is rotatably arranged in power take-off gear case 7, output shaft 17 is arranged in speedup power taking mouth, is connected with generator 5.An at least centre
Axle is rotatably arranged in power take-off gear case 7, and is disposed in parallel between input shaft and output shaft.In at least two pairs of speed increasing gear trains
The first speed increasing gear train driving gear empty set on input shaft 10, driven gear is fixed at least on a jackshaft, extremely
The driving gear of the second speed increasing gear train in few two pairs of speed increasing gear trains is fixed at least on a jackshaft, and driven gear is solid
Due on output shaft 17, output shaft 17 is delivered to after the rotation speedup of at least two pairs speed increasing gear adjutant input shafts 10.
Gearshift controlling organization is arranged in power take-off gear case 7, and gearshift controlling organization includes：Cylinder 28, piston 27, shifting shaft
29th, fork 30 and synchronizer 24；Cylinder 28 offer gearshift air inlet 42 and move back gear air inlet 43, by shift gears air inlet 42 or
Move back gear air inlet 43 and be filled with compressed gas into cylinder 28.Piston 27 is arranged in cylinder 28.Shifting shaft 29 is fixed with piston 27
Connection.Fork 30 is fixedly connected with shifting shaft 29.Synchronizer 24 is set on input shaft 10, is connected with fork 30.Synchronizer 24
The driving gear of first speed increasing gear train can be fixedly connected with input shaft 10.
Wherein, compressed gas enters the gearshift driving piston 27 of air inlet 42 and slid, shifting shaft 29, fork 30 and synchronizer 24
Piston 27 is followed to slide, synchronizer 24 fixes the driving gear of the first speed increasing gear train and input shaft 10 after sliding setpoint distance
Connection, then complete gearshift.Input shaft 10 is passed through again from the power that engine obtains by least two pairs of speed increasing gear train speedups
Output shaft 17 is delivered to generator 5.After generator 5 is connected with speedup power taking mouth, generator 5 obtains the dynamic of output shaft 17
Power.
Further, the power take-off gear case 7 is additionally provided with output power taking mouth I and output power taking mouth II.The power takeoff device
Also include：Belt wheel 9 and power transmission shaft 1；Belt wheel 9 is arranged in output power taking mouth I.One end of input shaft 10 is fixedly connected on belt wheel 9
Side, one end of power transmission shaft 1 is fixedly connected on the opposite side of belt wheel 9, and the other end of power transmission shaft 1 and the power taking mouth of engine connect
Connect；The other end of input shaft 10 is arranged in output power taking mouth II.Wherein, the power of engine is delivered to belt wheel 9 by power transmission shaft 1
And on input shaft 10, after external world's load connection output power taking mouth I or output power taking mouth II, the power of input shaft 10 is obtained, this is dynamic
The rotating speed of power is consistent with the rotating speed of input shaft 10.
Referring to accompanying drawing 2 and 4, further, the power takeoff device 3 includes：3 jackshafts and 4 pairs of speed increasing gear trains, quantity
Determination on the one hand consider power take-off gear case 7 inside space arrangement factor, on the other hand in view of speed increasing gear train needs
Reach the speed increasing ratio of setting.3 jackshafts include：Jackshaft I (label 11), jackshaft II (label 13) and (mark of jackshaft III
Number 15)；Jackshaft I is adjacent with input shaft 10, and jackshaft III is adjacent with output shaft 17, and jackshaft II is located at jackshaft I and centre
Between axle III.
Referring to accompanying drawing 2 and 4,4 pairs of speed increasing gear trains include：1 grade of gear pair, 2 grades of gear pairs, 3 grades of gear pairs and 4 grades of gears
It is secondary.1 grade of gear pair includes：Driving gear z1 (label 8) and driven gear z2 (label 12)；Driving gear z1 empty sets are in input shaft
On 10, driven gear z2 is fixed on jackshaft I.2 grades of gear pairs include：Driving gear z3 (label 20) and driven gear z4
(label 19), driving gear z3 are fixed on jackshaft I, and driven gear z4 is fixed on jackshaft II.3 grades of gear pairs include：
Driving gear z5 (label 14) and driven gear z6 (label 18), driving gear z5 are fixed on jackshaft II, driven gear z6
It is fixed on jackshaft III.4 grades of gear pairs include：Driving gear z7 (label 16) and driven gear z8, driving gear z7 are fixed
On jackshaft III, driven gear z8 is fixed on output shaft 17.As a kind of preferred embodiment, the transmission of 1 grade of gear pair
Than being 0.3816,2 grades of gear pairs and the gearratio of 3 grades of gear pairs and 1 grade of gear pair for the gearratio of 0.8421,4 grades of gear pairs
It is identical.
Further, driving gear z1 and driven gear z2 gear ratio is 38:32, driving gear z3 and driven gear z4
Gear ratio be 38:32, driving gear z5 and driven gear z6 gear ratio are 38:32, driving gear z7 and driven gear z8
Gear ratio be 76:29, it so can guarantee that total speed increasing ratio of the power takeoff device reaches 0.228.
Further, also include referring to accompanying drawing 2, the power takeoff device 3：Unilateral bearing 22, during unilateral bearing 22 is set in
On countershaft I, driving gear z3 is set on unilateral bearing 22.Set between driving gear z3 and jackshaft I on jackshaft I
Unilateral bearing 22, when the power of input shaft 10 interrupts (input power disappearance) suddenly, due to speedup power taking mouth load and turn
Dynamic inertia is larger, causes shock loading larger, and when it exceedes the maximum bearing torque of unilateral bearing 22, unilateral bearing 22 is empty
Turn to protect output shaft 17, each jackshaft and multipair speed increasing gear train, make the power takeoff device 3 that there is stoppage protection work(
Energy.
Referring to accompanying drawing 5, further, gearshift controlling organization also includes：Gearshift magnetic valve, shift switch 41, move back gear electromagnetism
Valve and move back position switch 40.On the tracheae that gearshift magnetic valve is arranged on extraneous source of the gas between air inlet 42 of shifting gears, shift switch 41
It is connected with gearshift magnetic valve.Move back gear magnetic valve to be arranged on extraneous source of the gas and move back on the tracheae between gear air inlet 43, move back position switch
40 are connected with moving back gear magnetic valve；Wherein, piston 27 forms two chambers with cylinder 28, and gearshift air inlet 42 is located in one of chamber
Room, move back gear air inlet 43 and be located at another chamber.Shift switch 41 is pressed, gearshift magnetic valve is opened, and compressed gas enters chamber
It is interior, start work of shifting gears.Press and move back position switch 40, move back gear magnetic valve and open, compressed gas enters another chamber, starts to move back gear
Work.
Referring to accompanying drawing 5, further, gearshift controlling organization also includes：Gearshift travel switch 31, indicator lamp 39, rotating speed inspection
Survey part and control unit.
Gearshift travel switch 31 is arranged in power take-off gear case 7, and gearshift travel switch 31 connects indicator lamp 39 by wire,
After the completion of gearshift, the triggering gearshift travel switch 31 of shifting shaft 29, light indicator lamp 39.Rotating speed measring part, which is arranged on, to be started
On machine, the rotating speed of engine can be detected and produce tach signal.Control unit and gearshift magnetic valve, move back gear magnetic valve, rotating speed inspection
Survey part and gearshift travel switch 31 connects.
Wherein, control unit cuts off gearshift magnetic valve after receiving the signal of gearshift travel switch 31；Control unit, which receives, to be turned
Gearshift magnetic valve is controlled after fast signal and moves back gear magnetic valve and is kept switched off state, meanwhile, gearshift is by mechanical locking, Wu Fazai
Perform gearshift or move back gear work.The power takeoff device 3 is set to prevent maloperation gearshift from causing power takeoff to damage.
Referring to accompanying drawing 3, further, cylinder 28 includes：Cylinder body and cylinder cap 25；Cylinder body is fixedly connected to form interior with cylinder cap 25
The chamber of portion's sealing；Chamber is divided into the chamber I and chamber II of sealing by piston 27, and gearshift air inlet 42 is connected with chamber I, moved back
Gear air inlet 43 connects with chamber II.
Referring to accompanying drawing 3, gearshift controlling organization also includes：Locking casing, lock pin 35, spring 34, steel ball 33 and transition nuts
26；Locking casing is fixedly connected with cylinder body.Locking casing offers chute, and chute connects with chamber I.Lock pin 35 is slidably arranged in
In locking casing, chamber I is hedged off from the outer world, lock pin 35 can slide along chute.Spring 34 is arranged in chute, under spring 34
End extruding lock pin 35.Steel ball 33 is arranged in chute, positioned at the top of spring 34.Transition nuts 26 are fixed with shifting shaft 29 to be connected
Connect, stopper slot is offered in transition nuts 26, the end set of transition nuts 26 is in inclined-plane, and inclined-plane is located at the side of stopper slot.
Wherein, lock pin 35 is fallen into stopper slot, and when carrying out gearshift work, compressed gas, compressed gas are filled with chamber I
Driving lock pin 35 slides along chute, and after lock pin 35 leaves stopper slot, compressed gas-driven piston 27 extends, and then completes gearshift,
The mechanical locking of gearshift is realized simultaneously.When move back gear work, lock pin 35 is squeezed in transition spiral shell by the elastic force of spring 34
On the inclined-plane of mother 26, compressed gas is filled with chamber II, compressed gas-driven piston 27 shortens, and lock pin 35 slides along chute, together
When lock pin 35 slid along inclined-plane, after lock pin 35 falls into stopper slot, then complete move back gear.
Further, also include referring to accompanying drawing 3, gearshift controlling organization：Move back gear travel switch 32.It is solid to move back gear travel switch 32
It is scheduled in the chute of locking casing, positioned at the top of steel ball 33.Gear travel switch 32 is moved back to be connected with control unit；Wherein, lock pin
After 35 fall into stopper slot, steel ball 33 separates with moving back gear travel switch 32, moves back gear travel switch 32 and sends a signal to control unit, controls
Unit control processed is moved back gear magnetic valve and disconnected, and gear is moved back in completion.
Further, also include referring to accompanying drawing 4, the power takeoff device 3：Oil sump 37, oil pump 21, radiator 38 and oil pipe,
Collectively form lubrication and cooling system 4.Oil sump 37 is arranged on the bottom of power take-off gear case 7；Oil pump 21 is connected with oil sump 37, in oil
Filter screen assembly 23 is set between pump 21 and oil sump 37, lubricating oil is filtered, ensures oil product.Radiator 38 connects with oil pump 21
Connect.Oil pipe includes main oil pipe 36 and Duo Gen oil distributing pipes；Main oil pipe 36 is connected with radiator 38；Draw respectively the outlet of more oil distributing pipes
To the position of input shaft 10, output shaft 17, more jackshafts, multipair speed increasing gear train and unilateral bearing 22.In power take-off gear case 7
Jackshaft I on be provided with oil pump 21, oil sump 37 of its oil suction from the bottom of power take-off gear case 7, lubricating oil is outer after oil pump 21
Connect radiator 38 to be radiated, then output shaft 17 and both ends spring bearing, each jackshaft are back to through the oil pipe that lubricates and radiate
And the position of each speed increasing gear train, to realize the lubrication of whole device and heat sinking function.
Below by specific embodiment to the operation principle of the power takeoff device 3 of the application and the operation of each building block
Feature is described in detail：
Power transmission principle：The power of power takeoff device 3 is inputted by the power taking mouth of engine, is delivered to and is taken through power transmission shaft 1
On input shaft 10 in powershift gear case 7, II normal work of the output power taking mouth I that is coaxially disposed with input shaft 10 or output power taking mouth
Make, driving gear z1 (label 8) empty sets in 1 grade of gear pair are on input shaft 10, its driven gear z2 (label 12) and 2 grades of teeth
Driving gear z3 (label 20) in wheel set is directly connected with jackshaft I (label 11), the driven gear z4 in 2 grades of gear pairs
Driving gear z5 (label 14) in (label 19) and 3 grades of gear pairs is directly connected with jackshaft II (label 13), 3 grades of gear pairs
In driven gear z6 (label 18) and 4 grades of gear pairs in driving gear z7 (label 16) directly with jackshaft III (label 15)
It is connected, output shaft 17 is gear shaft, and the driven gear z8 in 4 grades of gear pairs is coupled；Input shaft 10 is provided with synchronizer 24
With gas control shift fork 30, when controlling organization of shifting gears works, power drives 1 grade of gear pair to be delivered on jackshaft I through input shaft 10,
Then drive 2 grades of gear pairs to be transferred to II, 3 grade of gear pair of jackshaft successively and be transferred to jackshaft III and 4 grades of gear pair transmission
To output shaft 17, to realize that speedup power taking mouth connects the work of load generator 5.In addition jackshaft I driving gear z3 with
Unilateral bearing 22 is set between jackshaft I, when input power interrupts suddenly, a certain maximum torsion is set by unilateral bearing 22 itself
Square value, when load shock load exceedes the value, unilateral bearing 22 dallies to carry out stoppage protection to each axle and each gear pair.
Lubrication and radiating principle：Oil pump 21 is provided with jackshaft I in power take-off gear case 7, its oil suction comes from power taking tooth
The oil sump 37 of the bottom of roller box 7, lubricating oil external radiator 38 after oil pump 21 are radiated, then through the oil pipe backflow that lubricates and radiate
To the output shaft 17 and both ends spring bearing of power take-off gear case 7, to realize the lubrication of whole device and heat sinking function.
Gearshift control principle：After shift switch 41 are pressed, system compresses air enters gas by gearshift air inlet 42
In cylinder 28, promote piston 27 to move to the right, while drive shifting shaft 29 and shift fork 30 to move to the right, when shifting shaft 29 touches
Shift gears travel switch 31 when, its connect gearshift indicator lamp 39 it is bright, completion gear shift operation；When press move back gear switch 40 after, system pressure
Contracting air enters cylinder 28 by moving back grade air inlet 43, promotes piston 27 to move to the left, while drive shifting shaft 29 and shift fork 30
Move to the left, gear operation is moved back in completion.
Anti- gearshift maloperation electrical principle：After shift switch 41 are pressed, gearshift magnetic valve work, power take-off gear case is promoted
Piston 27, shift fork 30 and shifting shaft 29 etc. move to the right in 7, after completing gear shift operation, start engine in situ, now detect
Fed back after to the tach signal of engine to control unit, gearshift magnetic valve disconnects, and gearshift leans on mechanical structure locking.
When press move back gear switch 40 after, move back a grade electromagnetic valve work, promote piston 27, shift fork 30 and shifting shaft 29 etc. in power take-off gear case 7
Move to the left, now steel ball 33, which touches, moves back gear travel switch 32 and feed back signal to control unit, moves back grade magnetic valve and disconnects, changes
Retaining device mechanical locking；And when detecting engine rotational speed signal (i.e. after engine start), no matter press shift switch 41
Or to move back gear switch 40 invalid.
The operation characteristic of each building block is：(1) the power takeoff device 3 inputs the power taking mouth from engine in situ,
Power is transferred in power take-off gear case 7 via power transmission shaft 1, and power take-off gear case 7 is fixed on chassis frame by mounting bracket 2,
The external radiating of power take-off gear case 7 and the pipeline of lubricating system 4, to realize the profit of each axle, gear and bearing in power take-off gear case 7
Slide, and the radiating of whole device, the speedup power taking mouth of power take-off gear case 7 connect load generator 5, generator 5 carries generator
Auxiliary support 6, also is secured on chassis frame.
(2) power take-off gear case 7 includes an input power taking mouth and three output power taking mouths, wherein output power taking mouth I and II
Coaxially exported with input shaft 10, the 3rd output power taking mouth is speedup power taking mouth, and the work(of high speed power taking is realized by gear switch
Can, total speed increasing ratio 0.228 realizes that its power transmission process is by four pairs of speed increasing gear trains：Input power is (same via belt wheel 9
Input flange integrates) output power taking mouth I is transferred to, while input shaft 10 is transferred to the output power taking mouth II of its rear end, when entering
During promoting the circulation of qi control gear shift operation, input power is by belt wheel 9- input shaft 10- synchronizer 24- driving gear z1- driven gears in z2-
Countershaft I-driving gear z3- driven gear z4- jackshaft II-driving gear z5- driven gear z6- III-driving gears of jackshaft
Z7- output shafts 17, and then speedup power taking mouth is transferred to, connect speedup power taking mouth, generator high speed power taking output services.
(3) the controlling organization course of work of shifting gears is as follows：Fig. 3 is shown as initial position, the gearshift air inlet at the back cavity of cylinder cap 25
After mouth 42 is passed through compressed air, air pressure acts on piston 27 and lock pin 35 simultaneously, when system air pressure is higher than a certain setting atmospheric pressure value
When, thrust suffered by lock pin 35 overcomes the pressure of its contained spring 34, and now lock pin 35 is jacked up, with 26 stopper slots of transition nuts
Depart from, piston 27 moves under pressure, and connected shifting shaft 29 is simultaneously mobile and touches gearshift travel switch 31, band
Dynamic shift fork 30 completes gear shift operation, and after subsequent start-up engine, system detectio to engine rotational speed signal simultaneously feeds back to control singly
Member, gearshift magnetic valve disconnect automatically, and gearshift realizes mechanical locking by lock pin 35；In addition when system pressure is set less than this
When determining atmospheric pressure value, thrust can not overcome the pressure of its contained spring 34 suffered by lock pin 35, can not be moved to lock position, now live
Plug 27 can not be moved, and shift fork 30 is locked out.After the completion of gearshift, piston 27 is moved to extreme position, and now lock pin 35 is withstood
The inclined-plane of transition nuts 26, if now system pressure falls away, lock pin 35 is to compress inclined-plane under the elastic force effect of spring 34, is prevented
Piston 27 moves；When moved back in cylinder 28 gear air inlet 43 be passed through gas after, thrust suffered by piston 27 overcomes inclined-plane elastic force and friction
Power, cross inclined-plane and return to initial position, gear operation is moved back in completion.Experiment proves：When the system air pressure for moving back gear air inlet 43 is higher than
During a certain setting atmospheric pressure value, piston 27 can be promoted to move back gear, while no pressure only in the back cavity of cylinder cap 25, and lock pin 35 is complete
Fall into stopper slot, after moving back gear travel switch 32 could reset and provide reset signal, and reset signal feeds back to control unit,
Move back a grade magnetic valve to disconnect automatically, mechanical locking is realized by lock pin 35.
(4) because speedup power taking mouth is high speed output, the output shaft 17 and the lubrication of gear that it runs at high speed are using strong
The mode of lubrication is made, oil pump 21 is terminated after jackshaft I, oil pump 21 is inhaled by filter screen assembly 23 from the bottom of power take-off gear case 7
Oil, the front end of output shaft 17 is connected to through oil pipe to lubricate output shaft 17, high gear and both ends spring bearing.
(5) the power takeoff device 3 is also equipped with stoppage protection function, the jackshaft I of power take-off gear case 7 and driving gear z3 it
Between set unilateral bearing 22, when the power of input shaft 10 interrupts (input power disappearances) suddenly, due to speedup power taking mouth bear
Carry and rotary inertia is larger, cause shock loading larger, when it exceedes the maximum bearing torque of unilateral bearing 22, one-way shaft
22 idle running are held to be protected to each axle and speed increasing gear train.
One or more technical schemes provided herein, have at least the following technical effects or advantages：
1st, as a result of the power by the acquisition engine of input shaft 10, and an at least jackshaft and at least two is passed through
Output shaft 17 is delivered to the power speedup of speed increasing gear adjutant input shaft 10, speedup power taking mouth is set on power take-off gear case 7,
Output shaft 17 is arranged in speedup power taking mouth, after generator 5 connects speedup power taking mouth, obtains the power of output shaft 17.By
Gearshift controlling organization is set in power take-off gear case 7, and gearshift controlling organization makes generator 5 connect with speedup power taking mouth by gear shift operation
Connect.So, efficiently solve power takeoff of the prior art and be unable to reach specific occasion generating rotating speed 8000r/min requirements
Technical problem, realize power takeoff generation unit rotating speed and reach 8000r/min, technique effect of the power takeoff device 3 with gear switch function.
2nd, as a result of with gearshift magnetic valve, move back the gearshift control of gear magnetic valve, Rotating speed measring part and control unit
Mechanism processed, control unit and gearshift magnetic valve, move back gear magnetic valve and Rotating speed measring part be connected, control unit reception Rotating speed measring
After the tach signal (representing that engine has been started up) of part, control gearshift magnetic valve is kept switched off shape with gear magnetic valve is moved back
State, gearshift can not be performed gearshift again or be moved back gear work by mechanical locking.So, efficiently solve and change by mistake in the prior art
Gear operation easily causes the technical problem of power takeoff damage, and realizing the power takeoff device 3 can prevent maloperation gearshift from causing to take
The technique effect of power device damage.
3rd, as a result of unilateral bearing 22 is set between the driving gear z3 and jackshaft I on jackshaft I, input is worked as
When the power of axle 10 interrupts (input power disappearance) suddenly, the load and rotary inertia due to speedup power taking mouth are larger, cause
Shock loading is larger, and when it exceedes the maximum bearing torque of unilateral bearing 22, unilateral bearing 22 dallies to output shaft 17, each
Jackshaft and multipair speed increasing gear train are protected.So, power takeoff input power of the prior art is efficiently solved to interrupt
Afterwards, the technical problem of power takeoff failure is easily caused, realizing the power takeoff device 3 has stoppage protection function, input power
After interruption, the technique effect for causing power takeoff to damage when load generator has reverse heavy shock loads is avoided that.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not limited to this hair
It is bright, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., it should be included in the present invention
Protection domain within.
Claims (10)
1. a kind of power takeoff device, is arranged on the vehicle frame of vehicle, for the power of engine to be supplied into generator；The hair
Motor and the engine are fixed on the vehicle frame；Characterized in that, the power takeoff device includes：
Power take-off gear case, it is fixed on the vehicle frame；
Input shaft, it is rotatably arranged in the power take-off gear case；The input shaft is connected with the engine, in the engine
Be rotated by；
Output shaft, it is rotatably arranged in the power take-off gear case, is connected with the generator；
An at least jackshaft, it is rotatably arranged in the power take-off gear case, and is disposed in parallel in the input shaft and described
Between output shaft；
At least two pairs of speed increasing gear trains, the driving gear empty set of the first speed increasing gear train at least two pairs of speed increasing gear trains
On the input shaft, driven gear be fixed on it is described at least on a jackshaft, at least two pairs of speed increasing gear trains
The driving gear of second speed increasing gear train is fixed on described at least on a jackshaft, and driven gear is fixed on the output shaft
On；
Gearshift controlling organization, is arranged in the power take-off gear case；The gearshift controlling organization includes：Cylinder, piston, gearshift
Axle, fork and synchronizer；The cylinder offers gearshift air inlet and moves back gear air inlet, passes through the gearshift air inlet or described
Move back gear air inlet and be filled with compressed gas into the cylinder；The piston is arranged in the cylinder；The shifting shaft with it is described
Piston is fixedly connected；The fork is fixedly connected with the shifting shaft；The synchronizer is set on the input shaft, and described
Fork connects；The driving gear of first speed increasing gear train can be fixedly connected by the synchronizer with the input shaft；
Wherein, the compressed gas enters the gearshift air inlet and drives piston sliding, the shifting shaft, the fork and
The synchronizer follows the piston to slide, and the active of first speed increasing gear train is made after the synchronizer sliding setpoint distance
Gear is fixedly connected with the input shaft, and the input shaft passes through at least two pairs of speedups from the power that the engine obtains
Gear pair speedup is delivered to the generator by the output shaft again.
2. power takeoff device as claimed in claim 1, it is characterised in that
The power take-off gear case is additionally provided with output power taking mouth I and output power taking mouth II；
The power takeoff device also includes：Belt wheel and power transmission shaft；The belt wheel is arranged in the output power taking mouth I；
One end of the input shaft is fixedly connected on the side of the belt wheel, and one end of the power transmission shaft is fixedly connected on the band
The opposite side of wheel, the other end of the power transmission shaft are connected with the power taking mouth of the engine；
The other end of the input shaft is arranged in the output power taking mouth II；
Wherein, the power of the engine is delivered on the belt wheel and the input shaft by the power transmission shaft；External world's load connects
After connecing the output power taking mouth II of output power taking mouth I or described, the power of the input shaft is obtained.
3. power takeoff device as claimed in claim 1, it is characterised in that
The power takeoff device includes：3 jackshafts and 4 pairs of speed increasing gear trains；
3 jackshafts include：Jackshaft I, jackshaft II and jackshaft III；The jackshaft I is adjacent with the input shaft；
The jackshaft III is adjacent with the output shaft；The jackshaft II is between the jackshaft I and the jackshaft III；
4 pairs of speed increasing gear trains include：1 grade of gear pair, 2 grades of gear pairs, 3 grades of gear pairs and 4 grades of gear pairs；
1 grade of gear pair includes：The driving gear z1 and driven gear z2；The driving gear z1 empty sets are in the input
On axle；The driven gear z2 is fixed on the jackshaft I；
2 grades of gear pairs include：Driving gear z3 and driven gear z4；The driving gear z3 is fixed on the jackshaft I
On；The driven gear z4 is fixed on the jackshaft II；
3 grades of gear pairs include：Driving gear z5 and driven gear z6；The driving gear z5 is fixed on the jackshaft II
On；The driven gear z6 is fixed on the jackshaft III；
4 grades of gear pairs include：Driving gear z7 and driven gear z8；The driving gear z7 is fixed on the jackshaft III
On；The driven gear z8 is fixed on the output shaft.
4. power takeoff device as claimed in claim 3, it is characterised in that
The power takeoff device also includes：Unilateral bearing；
The unilateral bearing is set on the jackshaft I；The driving gear z3 is set on the unilateral bearing；
The gearratio of 1 grade of gear pair is 0.8421；
The gearratio of 4 grades of gear pairs is 0.3816；
2 grades of gear pairs and 3 grades of gear pairs are identical with the gearratio of 1 grade of gear pair.
5. power takeoff device as claimed in claim 4, it is characterised in that
The driving gear z1 and driven gear z2 gear ratio is 38:32；
The driving gear z3 and driven gear z4 gear ratio is 38:32；
The driving gear z5 and driven gear z6 gear ratio is 38:32；
The driving gear z7 and driven gear z8 gear ratio is 76:29.
6. power takeoff device as claimed in claim 1, it is characterised in that the gearshift controlling organization also includes：
Gearshift magnetic valve, it is arranged on the tracheae between extraneous source of the gas and the gearshift air inlet；
Shift switch, it is connected with the gearshift magnetic valve；
Gear magnetic valve is moved back, is arranged on extraneous source of the gas and the tracheae moved back between gear air inlet；
Position switch is moved back, is connected with the gear magnetic valve that moves back；
Wherein, the piston forms two chambers with the cylinder；The gearshift air inlet is located in one of the chamber, institute
State move back gear air inlet be located at another chamber；The shift switch is pressed, the gearshift magnetic valve is opened, the compressed gas
Body enters in the chamber, starts work of shifting gears；Position switch is moved back described in pressing, the gear magnetic valve that moves back is opened, the compressed gas
Body enters another described chamber, starts to move back gear work.
7. power takeoff device as claimed in claim 6, it is characterised in that the gearshift controlling organization also includes：
Gearshift travel switch, is arranged in the power take-off gear case；The gearshift travel switch connects indicator lamp by wire；When
After the completion of the gearshift, the shifting shaft triggers the gearshift travel switch, lights the indicator lamp；
Rotating speed measring part, it is arranged on the engine, the rotating speed of the engine can be detected and produce tach signal；
Control unit, opened with the gearshift magnetic valve, gear magnetic valve, the Rotating speed measring part and the gearshift stroke of moving back
Connection connects；
Wherein, described control unit cuts off the gearshift magnetic valve after receiving the signal of the gearshift travel switch；The control
Unit controls the gearshift magnetic valve and the gear magnetic valve that moves back to be kept switched off state after receiving the tach signal.
8. power takeoff device as claimed in claim 7, it is characterised in that
The cylinder includes：Cylinder body and cylinder cap；
The cylinder body is fixedly connected to form the chamber of inner sealing with the cylinder cap；The chamber is divided into sealing by the piston
Chamber I and chamber II；The gearshift air inlet connects with the chamber I；The gear air inlet that moves back connects with the chamber II；
The gearshift controlling organization also includes：Locking casing, lock pin, spring, steel ball and transition nuts；
The locking casing is fixedly connected with the cylinder body；The locking casing offers chute；The chute and the chamber I
Connection；
The lock pin is slidably arranged in the locking casing, and the chamber I is hedged off from the outer world；The lock pin can be along the cunning
Groove slides；
The spring is arranged in the chute；The lower end of the spring extrudes the lock pin；
The steel ball is arranged in the chute, positioned at the top of the spring；
The transition nuts are fixedly connected with the shifting shaft；Stopper slot is offered in the transition nuts；The transition nuts
End set is in inclined-plane, and the inclined-plane is located at the side of the stopper slot；
Wherein, the lock pin is fallen into the stopper slot；When carrying out gearshift work, compressed gas is filled with the chamber I, institute
State lock pin described in compressed gas-driven to slide along the chute, after the lock pin leaves the stopper slot, the compressed gas is driven
The dynamic piston elongation, then completes gearshift；When move back gear work, the lock pin is squeezed in institute by the elastic force of the spring
State on the inclined-plane of transition nuts；Compressed gas is filled with the chamber II, piston described in the compressed gas-driven shortens, described
Lock pin slides along the chute, while the lock pin slides along the inclined-plane, then complete after the lock pin falls into the stopper slot
Kept off into moving back.
9. power takeoff device as claimed in claim 8, it is characterised in that the gearshift controlling organization also includes：
Gear travel switch is moved back, is fixed in the chute of the locking casing, positioned at the top of the steel ball；
The gear travel switch that moves back is connected with described control unit；
Wherein, after the lock pin falls into the stopper slot, the steel ball separates with the gear travel switch that moves back, described to move back gear stroke
Switch sends a signal to described control unit, and gear magnetic valve is moved back described in described control unit control and is disconnected, gear is moved back in completion.
10. power takeoff device as claimed in claim 4, it is characterised in that the power takeoff device also includes：
Oil sump, it is arranged on the bottom of the power take-off gear case；
Oil pump, it is connected with the oil sump；
Radiator, it is connected with the oil pump；
Oil pipe, the oil pipe include main oil pipe and Duo Gen oil distributing pipes；The main oil pipe is connected with the radiator；Described more points
The input shaft, the output shaft, the jackshaft, the speed increasing gear train and the one-way shaft are guided in the outlet of oil pipe respectively
The position held.
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| CN201510944103.8A CN105546054B (en) | 2015-12-16 | 2015-12-16 | A kind of power takeoff device |
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|---|---|---|---|
| CN201510944103.8A CN105546054B (en) | 2015-12-16 | 2015-12-16 | A kind of power takeoff device |
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| CN107642589B (en) * | 2017-09-26 | 2019-08-27 | 朱幕松 | Automatic shifting differential mechanism |
| CN107763152B (en) * | 2017-10-20 | 2019-08-27 | 朱幕松 | Automatic speed derailleur for electric vehicle |
| CN108488258B (en) * | 2018-02-07 | 2020-09-18 | 北京航天控制仪器研究所 | Dragging device of vehicle-mounted power take-off power generation system |
| CN109664752A (en) * | 2019-01-28 | 2019-04-23 | 北京福田戴姆勒汽车有限公司 | Car transporter |
| CN114439934A (en) * | 2021-12-23 | 2022-05-06 | 陕西法士特齿轮有限责任公司 | Electric drive bridge integrated with power takeoff and power takeoff control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6758112B2 (en) * | 2001-03-26 | 2004-07-06 | Norihiro Ishii | Power transmission arrangement of a working vehicle and transmission for the working vehicle |
| WO2011093432A1 (en) * | 2010-01-29 | 2011-08-04 | Ｇｋｎ ドライブライン ジャパン株式会社 | Power takeoff unit for automobile |
| CN203627669U (en) * | 2013-10-10 | 2014-06-04 | 湖北星菱特种齿轮箱有限公司 | Multifunctional power take-off unit |
| CN203703071U (en) * | 2014-02-12 | 2014-07-09 | 浙江帕瓦传动设备有限公司 | Full-power power takeoff device of two-stage accelerating structure |
| CN104265839B (en) * | 2014-09-19 | 2016-08-24 | 安徽江淮汽车股份有限公司 | A kind of power takeoff and power takeoff assembly |
| CN204387227U (en) * | 2014-12-11 | 2015-06-10 | 湖北航天技术研究院特种车辆技术中心 | A kind of dual output power take-off gear case |
-
2015
- 2015-12-16 CN CN201510944103.8A patent/CN105546054B/en active Active
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| CN105546054A (en) | 2016-05-04 |
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