CN104358849A - Electric control continuously variable transmission of oil-fired vehicle and speed changing method - Google Patents

Electric control continuously variable transmission of oil-fired vehicle and speed changing method Download PDF

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Publication number
CN104358849A
CN104358849A CN201410495583.XA CN201410495583A CN104358849A CN 104358849 A CN104358849 A CN 104358849A CN 201410495583 A CN201410495583 A CN 201410495583A CN 104358849 A CN104358849 A CN 104358849A
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CN
China
Prior art keywords
gear
follower
speed
driving wheel
driven shaft
Prior art date
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Pending
Application number
CN201410495583.XA
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Chinese (zh)
Inventor
李新民
刘冰雪
张绍培
宋凡
李炎红
张辉
雷晓倩
余萍
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LUOYANG RUINENG TRANSMISSION TECHNOLOGY Co Ltd
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LUOYANG RUINENG TRANSMISSION TECHNOLOGY Co Ltd
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Application filed by LUOYANG RUINENG TRANSMISSION TECHNOLOGY Co Ltd filed Critical LUOYANG RUINENG TRANSMISSION TECHNOLOGY Co Ltd
Priority to CN201410495583.XA priority Critical patent/CN104358849A/en
Publication of CN104358849A publication Critical patent/CN104358849A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H37/00Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Abstract

The invention relates to the technical field of speed changing devices and discloses an electric control continuously variable transmission of an oil-fired vehicle and a speed changing method. The electric control continuously variable transmission of the oil-fired vehicle, which is adopted for the method, is characterized in that a driving wheel of a driving wheel transmission mechanism is connected with a driven wheel of a driven wheel transmission mechanism through a transmission belt; a driving shaft connected with a driving wheel fixing cone disk on the driving wheel is connected with a clutch; a driving wheel moving cone disk on the driving wheel is connected with an electric speed regulating driving device through a spiral thrust device; the electric speed regulating driving device comprises a speed changing regulating motor, a speed reducing gear group and a transmission controller. The requirements on high-speed traveling and low-speed climbing properties of the vehicle can be met; sensors of the driving shaft and a driven shaft are monitored by the transmission controller, the speed ratio of the driving shaft to the driven shaft is automatically adjusted, low-speed large torque output during climbing can be realized, and high-speed output on a flat ground is realized, so that an engine works in a high-efficiency area; the electric control continuously variable transmission of the oil-fired vehicle is simple in structure, convenient to operate, low in production cost and easy to promote and popularize.

Description

A kind of fuel-engined vehicle electric controlling stepless variable speed case and method for changing speed
Technical field
The present invention relates to the technical field of automobile speed-changing device, particularly relate to a kind of fuel-engined vehicle electric controlling stepless variable speed case and method for changing speed.
Background technique
At present, the existing traffic tool generally adopt fuel-engined vehicle, usual two kinds of the speed change due to fuel-engined vehicle: one cuts off power by clutch, just can carry out gear shift, frequent operation when there is gear shift, another kind is senior automaitc shfit, gear-change operation is convenient, but it is too high to there is price.A kind of gearshift performance of market in urgent need is good for this reason, easy to operate, cheap infinitely variable transmission.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of fuel-engined vehicle electric controlling stepless variable speed case and method for changing speed.
For achieving the above object, the present invention adopts following technological scheme:
A kind of fuel-engined vehicle electric controlling stepless variable speed case, comprise have in casing, casing electric speed regulation drive unit, clutch, driving wheel transfer mechanism, follower transfer mechanism, fall along gear mechanism, final gear and differential mechanism;
The driving wheel that described driving wheel transfer mechanism has the driving shaft for connecting clutch and is nested with to follower transfer mechanism transfer of torque on driving shaft, driving wheel includes the driving wheel fixed cone dish be fixed on driving shaft cone dish movable with the driving wheel be nested with on driving shaft, and the movable cone dish of driving wheel is connected with the spiral thrust device be nested with on driving shaft by angular contact ball bearing; And form " V " type belt grooves having and change the driving wheel upper driving band radius of clean-up between driving wheel fixed cone dish and the movable cone dish of driving wheel;
Described follower transfer mechanism includes the driven shaft of transfer of torque, the follower to driven shaft transfer of torque, follower includes and is nested with follower fixed cone dish on driven shaft and fixing cone dish movable with the follower be nested with on driven shaft, the thrust spring that follower movable cone dish axle sleeve is nested with contacts with the spring seat on driven shaft, or thrust spring is contacted with the spring seat on driven shaft by thrust-bearing; The driver slot that described follower movable cone dish axle sleeve is arranged is nested with on the drive pin on driven shaft; And form " V " type belt grooves had for changing the follower upper driving band radius of clean-up between follower fixed cone dish and the movable cone dish of follower;
The driving shaft of described driving wheel transfer mechanism is connected with motor by clutch, and the driving wheel be nested with on driving shaft is connected by the follower of driving belt with follower transfer mechanism; The spiral thrust device connecting the movable cone dish of driving wheel is connected with electric speed regulation drive unit;
Falling that the driven shaft of described follower transfer mechanism is arranged has along gear mechanism move ahead gear and the backward gear that is connected with a joggle by reverse gear and final gear that are connected with a joggle with final gear; And final gear and differential gear are connected with a joggle;
Wherein, described electric speed regulation drive unit has adjustment motor, train of reduction gears, the gearbox control of speed change, is connected by train of reduction gears with the described adjustment motor that gearbox control is electrically connected with described spiral thrust device;
Wherein, housing is provided with the driving shaft speed probe of a monitoring driving shaft rotating speed; Housing is provided with the output speed sensor of a monitoring output speed.
A kind of fuel-engined vehicle electric controlling stepless variable speed case, described clutch is centrifugal clutch, include clutch housing, spline housing, described clutch housing is fixedly connected with is formed by the inner ring of the shell with spline with band internal spline, clutch housing has the inner chamber holding spline housing bearing housing, and holds the exocoel of thrust collar dish;
The exocoel of clutch housing and thrust collar dish form in the tapered thrust cavity in cross section and are evenly equipped with some centrifugal steel balls;
The inner ring of the band internal spline of clutch housing and the line shaft spline joint of connecting engine axle, the unidirectional sliding connection of unilateral bearing inner ring in line shaft external part and spline housing bearing housing;
The outer chamber wall of clutch housing and stretch into this cavity spline housing outer wall between form clutch cavity, spring return function cavity respectively;
The spline of the clutch housing body wall in clutch cavity is evenly equipped with some clutch steel discs; Some clutch friction plates uniform on the spline of spline housing outer wall and some clutch steel disc intercross arrangement, the annular boss of thrust collar dish another side in clutch cavity contacts with the first clutch steel disc of intercross arrangement, the end clutch steel disc of intercross arrangement is provided with clutch snap ring, and clutch snap ring clip is in the outer chamber wall of clutch housing;
Be provided with return spring in the spring return function cavity of clutch housing, return spring one end is fixed on the return spring the other end in the spring groove on thrust disc and is fixed on by annular spring base in the draw-in groove of ring outer wall in clutch housing;
Wherein, the spline joint on clutch steel disc and clutch housing inwall, the spline joint on clutch friction plate and spline housing;
Wherein, the thrust disc of displacement to be vertically arranged in clutch housing band internal spline on ring outer wall by flat key.
A kind of fuel-engined vehicle electric controlling stepless variable speed case, described spiral thrust device has the speed regulation gear of movable part and the spiral thrust seat of fixed component, the internal thread that in timing gear wheel bore, one end is arranged and the outside thread screwed connection of spiral thrust seat, spiral thrust seat is nested with on driving shaft by bearing, and the outer ring of spiral thrust seat is arranged in the axis hole of casing; Spiral thrust seat and driving shaft axially locating, spiral thrust seat is provided with the locating slot that restriction spiral thrust seat rotates, locating slot is corresponding with the locating stud of casing axis hole; In timing gear wheel bore, the other end is provided with angular contact ball bearing seat, the angular contact ball bearing of angular contact ball bearing seat internal fixtion be nested with the movable cone dish of driving wheel that flat key on driving shaft is connected and be fixedly connected with; Or replace with ball screw thrust device; Ball screw thrust device is connected and composed by ball engagement by the internal thread of speed regulation gear and the outside thread of spiral thrust seat.
A kind of fuel-engined vehicle electric controlling stepless variable speed case, the movable cone dish of described follower has the cone dish be nested with on driven shaft and the axle sleeve be nested with on driven shaft and connects and composes, axle sleeve is provided with the spiral chute of two symmetrical transmission torsion, two spiral chutes are nested with drive pin two ends fixing on driven shaft, and spiral fluted hypotenuse contacts with the drive pin be fixed on driven shaft is corresponding.
A kind of fuel-engined vehicle electric controlling stepless variable speed case, described driven shaft one end is provided with the reduced diameter section in order to fixing follower fixed cone dish, the middle part of driven shaft is provided with the enlarged diameter section in order to the cone of follower activity in axial sliding dish, the driven shaft of enlarged diameter section is provided with the drive pin corresponding with driver slot on follower movable cone dish axle sleeve; Driven shaft the other end reduced diameter section is sequentially provided with spring seat installation position, driven shaft bearing installation position, along the gear installation position of gear mechanism, wherein the gear segment axle of suitable gear mechanism is splined shaft position.
A kind of fuel-engined vehicle electric controlling stepless variable speed case, described have the splined shaft concentric with driven shaft along gear mechanism, splined shaft is equipped with the gear that moves ahead, fixing spline housing, backward gear, described fixing spline housing and splined shaft spline joint, described fixing spline housing is provided with the gear shift spline housing of slip, be provided with the spline be connected with move ahead gear or backward gear spline in described gear shift spline housing, gear shift spline housing is outside equipped with the fork slot be connected with gear-change operation bar upper shift fork; The described gear that moves ahead is connected with a joggle by final gear and differential mechanism, and described backward gear is connected with a joggle by reverse gear third wheel, final gear and differential mechanism.
A kind of fuel-engined vehicle electric controlling stepless variable speed case, described casing, comprising: the housing of stepless speed variator be combined with bonnet form rear chamber, stepless speed variator housing be combined the front cavity formed with protecgulum; Described rear chamber, comprise: in order to hold electric speed regulation drive unit electric speed regulation drive unit cavity, in order to hold driving wheel transfer mechanism driving wheel transfer mechanism cavity, in order to hold the follower transfer mechanism cavity of follower transfer mechanism, the side of described driving wheel transfer mechanism cavity is set to automatically controlled speed governing cavity, and opposite side is set to follower transfer mechanism cavity;
The housing corresponding with described driving wheel transfer mechanism cavity has makes the driving shaft of driving wheel transfer mechanism pass and bearings mounted circular mounting hole; To be coaxially arranged with in cavity before corresponding with the circular mounting hole of housing drive shaft bearing to hold on driving shaft and driving shaft be nested with the clutch cavity of clutch; The axial corresponding end holding clutch shaft with clutch cavity is provided with coaxial engine flywheel cavity; The dead in line of the axis of the circular mounting hole of described bearing, the axis of clutch cavity and engine flywheel cavity;
The housing corresponding with described follower transfer mechanism cavity has makes the driven shaft of follower transfer mechanism pass and bearings mounted circular mounting hole; The suitable gearshift cavity that falls in order to hold to fall along gearshift is coaxially arranged with in cavity before corresponding with the circular mounting hole of housing driven shaft bearing;
Described suitable gearshift cavity side accommodates the shifting-fork gear-shifting bar cavity with the shifting-fork gear-shifting bar be connected along shifting sleeve on gearshift driven shaft; Opposite side accommodates the reverse gear cavity with the reverse gear be connected along backward gear on gearshift driven shaft, be provided with below reverse gear cavity in order to hold and to fall along the gear that moves ahead on gearshift driven shaft, and the main gear reducer structure cavity of final gear that reverse gear is connected;
The side-lower of described final gear cavity is provided with the differential mechanism cavity in order to hold the differential mechanism be connected with a joggle with final gear;
A kind of fuel-engined vehicle electric controlling stepless variable speed case, the microcontroller acquires interface that described gearbox control has a processing signals and the driving shaft speed probe of monitoring driving shaft rotating speed, the output speed sensor electrical of monitoring output speed are connected; Microprocessor pulse-width modulation PWM end interface is electrically connected with the adjustment motor for speed change through motor-drive circuit; Microprocessor analog-to-digital conversion interface is connected with the speed governing sensor electrical of monitoring engine throttle, is connected with the skidding sensor electrical of monitoring braking state.
A kind of stepless change method of fuel-engined vehicle electric controlling stepless variable speed case, the spiral thrust device controlled by electric speed regulation drive unit, change the driving belt radius of clean-up on driving wheel transfer mechanism driving wheel and the driving belt radius of clean-up on follower transfer mechanism follower, regulate the speed ratio of driving shaft and driven shaft to change, its step is as follows:
1), forward travel time, electric speed regulation drive unit is energized, and the adjustment motor that gearbox control controls is in and treats working state, and the speed ratio of driving shaft and driven shaft, remains unchanged;
Ato unit, motor drives the driving wheel of driving wheel transfer mechanism to rotate by clutch, driving wheel drives the follower of follower transfer mechanism to rotate by rubber transmission belting, and the movable cone dish of the follower on follower torque force promotes drive pin by the spiral chute on follower movable cone dish axle sleeve and is delivered on driven shaft; Falling along gear mechanism by final gear, differential mechanism external output torque on driven shaft;
Simultaneously, the microprocessor of gearbox control is by monitoring the electrical signal of the electrical signal of the driving wheel speed probe of driving shaft rotating speed, the secondary speed sensor of monitoring output speed, and the electrical signal of the throttle line sensor of Monitoring and Controlling engine speed, process through microprocessor, the sense of rotation of regulating and controlling motor and rotating speed, reach the speed ratio automatically regulating driving shaft and driven shaft;
A) when starting to walk or go up a slope, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, compared with the starting speed ratio of the driving shaft calculated and the speed ratio of driven shaft and the driving shaft of storage and driven shaft or upward slope speed ratio, speed ratio is identical, microprocessor judges is starting or upward slope state, increase speed ratio, regulating and controlling motor rotates backward, spiral thrust device is driven to reduce the radius of clean-up of rubber transmission belting on driving wheel by train of reduction gears, increase the radius of clean-up of rubber transmission belting on follower, increase the speed ratio of driving shaft and driven shaft, assisted deceleration, increase moment of torsion, or manually the button controlled on gearbox control directly increases speed ratio, assisted deceleration, increases moment of torsion,
Wherein, the speed regulation gear internal thread of spiral thrust device rotates along the outside thread of spiral thrust seat, speed regulation gear is made to drive driving wheel activity cone rim axle slowly to leave driving wheel fixed cone dish, increase cross section between the movable cone dish of driving wheel and driving wheel fixed cone dish and form the spacing of " V " type groove, driving belt is moved to drive sprocket axle core, reduces the radius of clean-up of driving wheel upper driving band;
Simultaneously, along with the dragging of driving belt at follower is loosened, on driven shaft, the movable cone dish of follower is by the effect of thrust spring axial force, rubber transmission belting is moved to follower edge, reduce cross section between follower fixed cone dish and follower movable cone dish and form the spacing of " V " type groove, thus realize the movable cone dish of follower and follower fixed cone dish closes up, increase the radius of clean-up of rubber transmission belting on follower, drive pin is promoted by the symmetric helix groove that follower movable cone dish axle sleeve is arranged, directly torque force is delivered on driven shaft, thus reaches vehicle deceleration;
B) when level road, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, and the driving shaft calculated and the speed ratio of driven shaft are with the driving shaft of storage compared with the level road speed ratio of driven shaft, and speed ratio is identical, microprocessor judges is level road state
When motor speedup, send instruction, reduce the speed ratio of driving shaft and driven shaft, regulating and controlling motor rotates forward, and regulates motor by train of reduction gears, spiral thrust device, the radius of clean-up of rubber transmission belting on driving wheel to be increased; On follower, the radius of clean-up of rubber transmission belting reduces, and reaches the speed ratio reducing driving shaft and driven shaft, and assisting vehicle accelerates;
Wherein, the speed regulation gear internal thread of spiral thrust device rotates along the outside thread of spiral thrust seat, the driving wheel activity cone rim driving wheel fixed cone dish that speed regulation gear is connected by angular contact ball bearing is axially slowly mobile to work, reduce cross section between the movable cone dish of driving wheel and driving wheel fixed cone dish and form the spacing of " V " type groove, along with rubber transmission belting drags the rotation of follower, gradually increase the radius of clean-up of rubber transmission belting between the movable cone dish of driving wheel and driving wheel fixed cone dish;
Simultaneously, the rubber transmission belting of tension, impel the movable cone dish of the follower on driven shaft overcome spring force and follower fixed cone dish from, thus realize the movable cone dish of follower and follower fixed cone dish opens, increase cross section between follower fixed cone dish and follower movable cone dish and form the spacing of " V " type groove, reduce the radius of clean-up of rubber transmission belting on follower, thus realize vehicle speedup;
When the electrical signal that microprocessor monitors receives engine throttle line sensor reduces, microprocessor judges motor slows down, the adjustment motor of Microprocessor S3C44B0X, and the speed ratio of driving shaft and driven shaft is remained unchanged;
When microprocessor monitors receives the electrical signal of brake, microprocessor sends instruction, makes adjustment motor reduce the radius of clean-up of rubber transmission belting on driving wheel by spiral thrust device, increases the radius of clean-up of rubber transmission belting on follower, deceleration auxiliary brake;
C) during descending, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, the driving shaft calculated and the speed ratio of driven shaft with the driving shaft of storage compared with the descending speed ratio of driven shaft, speed ratio is identical, Microprocessor S3C44B0X regulates motor static, and the speed ratio of driving shaft and driven shaft remains unchanged;
When microprocessor monitors receives the electrical signal of brake, microprocessor sends instruction, by the radius of clean-up regulating motor, spiral thrust device to reduce rubber transmission belting on driving wheel, increases the radius of clean-up of rubber transmission belting on follower, deceleration auxiliary brake;
2), when traveling need be swung to, by the gear-change operation bar along gear mechanism, gear shift spline housing is departed from the gear that moves ahead, gear shift spline housing is connected with backward gear spline, backward gear, by reverse gear third wheel, makes final gear, differential mechanism externally reverse output torque; Fuel-engined vehicle backward backward travels;
Simultaneously, gearbox control sends instruction, adjustment motor rotates backward, train of reduction gears is made to drive speed regulation gear to drive driving wheel activity cone rim axially gradually to leave driving wheel fixed cone dish, reduce the radius of clean-up of rubber transmission belting on driving wheel, increase the radius of clean-up of rubber transmission belting on follower, realize the backward of lower-speed state.
Owing to adopting technological scheme as above, the present invention has following superiority:
A kind of fuel-engined vehicle electric controlling stepless variable speed case and method for changing speed, can meet the requirement of running at high speed with low speed grade climbing performance simultaneously with motor; When vehicle is climbed, the engine throttle that foot treadle controls adjusts the speed ratio of driving shaft and driven shaft automatically by gearbox control, realizes exporting low-speed big, makes power plant be operated in high efficient area; The speed ratio of driving shaft and driven shaft can also be adjusted simultaneously by the hand push button of gearbox control, realize exporting low-speed big, make power plant be operated in high efficient area.When travelling on vehicle level land, the engine throttle controlled by gearbox control, foot treadle adjusts the speed ratio of driving shaft and driven shaft automatically, realizes speedy carding process, makes high vehicle speeds, make engine operation in high efficient area.Its structure is simple, and easy to operate, cost of production is low, is easy to popularize.
Accompanying drawing explanation
Fig. 1 is the structural representation of fuel-engined vehicle electric controlling stepless variable speed case of the present invention;
Fig. 2 is the housing structure schematic diagram of fuel-engined vehicle electric controlling stepless variable speed case;
Fig. 3 is the spiral thrust mechanism structure schematic diagram of fuel-engined vehicle electric controlling stepless variable speed case;
Fig. 4 is the ball screw arrangement schematic diagram of electric controlling stepless variable speed case;
Fig. 5 is the driven movable cone dish structural representation of band spiral fluted;
Fig. 6 is the structural representation of the clutch of electric controlling stepless variable speed case.
Fig. 7 is that gearbox is along the cooperating structure schematic diagram of shelves, final gear and differential mechanism;
Fig. 8 is the structural representation of follower transfer mechanism;
Fig. 9 is down the structural representation along gear mechanism;
Figure 10 is the structural representation of spiral thrust device;
Figure 11 is the circuit block diagram of gearbox control;
In figure: 1--casing, 2--clutch, 3--driving wheel fixed cone dish, 4--train of reduction gears, 5--regulates motor, the movable cone dish of 6--driving wheel, 7--spiral thrust seat, 8--follower fixed cone dish, 9--rubber transmission belting, the movable cone dish of 10--follower, 11--final gear, 12--differential mechanism, 13--reverse gear third wheel, 14--shifting-fork gear-shifting bar, 15--driving shaft speed probe, 16--output speed sensor, 17--speed regulation gear, 18--angular contact ball bearing, 19--drive pin, 20--moves ahead gear, 21--gear shift spline housing, 22--backward gear, 23--fixes spline housing, 24--protecgulum, 25--main casing, 26--bonnet, 27--driving shaft, 28--driven shaft, 29--ball, 30--motor junction plane, 31--gear arm, 32--thrust spring.
Embodiment
Below in conjunction with accompanying drawing, also by best embodiment, the present invention is described in detail.
As shown in Figure 1 to 11, a kind of fuel-engined vehicle electric controlling stepless variable speed case, comprises in casing 1, casing 1 and is provided with electric speed regulation drive unit, clutch 2, driving wheel transfer mechanism, follower transfer mechanism, suitable gear mechanism, final gear 11 and differential mechanism 12;
Described driving wheel transfer mechanism has driving shaft for connecting clutch 2 with being nested with and is bonded to the driving wheel of follower transfer mechanism transfer of torque on driving shaft, driving wheel is bonded by the movable cone dish 6 of the driving wheel fixed cone dish 3 be fixed on driving shaft and the driving wheel be nested with on driving shaft, and the movable cone dish 6 of driving wheel is connected with the spiral thrust device be nested with on driving shaft by angular contact ball bearing; And form " V " type belt grooves having and change the driving wheel upper driving band radius of clean-up between driving wheel fixed cone dish 3 and the movable cone dish 6 of driving wheel;
Described follower transfer mechanism comprises: the driven shaft of transfer of torque, the follower to driven shaft transfer of torque, follower has and to be nested with on driven shaft and fixing follower fixed cone dish 8 and the movable cone dish 10 of follower be nested with on driven shaft combine composition, the thrust spring that follower movable cone dish 10 axle sleeve is nested with contacts with the spring seat on driven shaft, or thrust spring is contacted with the spring seat on driven shaft by thrust-bearing; The driver slot that described follower movable cone dish 10 axle sleeve is arranged is nested with on the drive pin 19 of driven shaft, coordinates with the drive pin 19 on driven shaft; And form " V " type belt grooves had for changing the follower upper driving band radius of clean-up between follower fixed cone dish 8 and the movable cone dish 10 of follower;
The driving shaft of described driving wheel transfer mechanism is connected with motor by clutch 2, and the driving wheel be nested with on driving shaft is connected by the follower of driving belt with follower transfer mechanism; The spiral thrust device connecting the movable cone dish 6 of driving wheel is connected with electric speed regulation drive unit;
Falling that the driven shaft of described follower transfer mechanism is arranged has the gear that moves ahead engaged with final gear 11 along gear mechanism, and by backward gear that reverse gear engages with final gear 11; And final gear 11 is connected with differential mechanism 12 gears meshing;
Wherein, described electric speed regulation drive unit has adjustment motor 5, train of reduction gears 4, the gearbox control of speed change, is connected by train of reduction gears with the described adjustment motor 5 that gearbox control is electrically connected with described spiral thrust device; Train of reduction gears is made up of the input reduction gear 4.1 coaxially connected and output reduction gear 4.2.
Wherein, housing is provided with the driving shaft speed probe 15 of a monitoring driving shaft rotating speed; Housing is provided with the output speed sensor 16 of a monitoring output speed.
The clutch of this fuel-engined vehicle electric controlling stepless variable speed case is centrifugal clutch 2, comprising: clutch housing 2.2, spline housing 2.9, and the shell that described clutch housing 2.2 has band spline is fixedly connected with formation with the inner ring of band internal spline; Clutch housing 2.2 has the bearing housing inner chamber holding spline housing 2.9, and holds the exocoel of thrust collar dish 2.4, return spring 2.5, clutch steel disc 2.6, clutch friction plate 2.7;
The cross section that the exocoel of clutch housing 2.2 and thrust collar dish 2.4 connect and compose forms the thrust cavity of taper, some steel balls 2.3 are evenly equipped with in thrust cavity, the inner ring of the band internal spline of clutch housing 2.2 is fixedly connected with line shaft 2.1 spline of connecting engine axle, the unidirectional sliding connection of unilateral bearing 2.10 inner ring in line shaft 2.1 external part and spline housing 2.9 bearing housing, during reversion fixing together;
The outer chamber wall of clutch housing 2.2 and stretch into this cavity spline housing 2.9 outer wall between form clutch cavity, spring return function cavity respectively;
The spline of clutch housing 2.2 wall in clutch cavity is evenly equipped with some clutch steel discs 2.6; Some clutch friction plates 2.7 uniform on the spline of spline housing 2.9 outer wall and some clutch steel disc 2.6 intercross arrangement, the annular boss of thrust collar dish 2.4 another side in clutch cavity contacts with the first clutch steel disc 2.6 of intercross arrangement, the end clutch steel disc 2.6 of intercross arrangement is provided with clutch snap ring 2.8, and clutch snap ring 2.8 clip is in the outer chamber wall of clutch housing 2.2;
Be provided with return spring 2.5 in spring return function cavity, return spring one end is fixed on the return spring the other end in the spring groove on thrust disc 2.4 and is fixed on by annular spring base in the draw-in groove of ring outer wall in clutch housing 2.2;
Wherein, clutch steel disc 2.6 and the spline joint on clutch housing 2.2 inwall, clutch friction plate 2.7 and the spline joint on spline housing 2.9;
Wherein, the thrust disc 2.4 of displacement is vertically arranged on clutch housing 2.2 with on ring outer wall in internal spline by flat key.
Described clutch has the structure of one-way rotation, by unilateral bearing 2.10 control motor and driving shaft can only one-way clutch, when driving shaft rotates backward, driving shaft drives the counter-rotational feature of motor by unilateral bearing 2.10, as shown in Figure 6.This gearbox can also adopt the existing clutch work with one-way rotation.
This spiral thrust device described in fuel-engined vehicle electric controlling stepless variable speed case has the speed regulation gear 17 of movable part and the spiral thrust seat 7 of fixed component, the internal thread that in speed regulation gear 17 hole, one end is arranged and the outside thread screwed connection of spiral thrust seat 7, spiral thrust seat 7 is nested with on driving shaft by bearing, and the outer ring of spiral thrust seat 7 is arranged in the axis hole of casing; Spiral thrust seat 7 and driving shaft 27 axially locating, spiral thrust seat 7 is provided with the locating slot that restriction spiral thrust seat 7 rotates, locating slot is corresponding with the locating stud of casing axis hole; In speed regulation gear 17 hole, the other end is provided with angular contact ball bearing seat, the angular contact ball bearing 17.3 of angular contact ball bearing seat internal fixtion be nested with the movable cone dish 6 of driving wheel that flat key on driving shaft is connected and be fixedly connected with; Or replace with ball screw thrust device; Ball screw thrust device to be connected by ball 29 by the internal thread of speed regulation gear 17 and the outside thread of spiral thrust seat 7 and to form.
Wherein, speed regulation gear 17 is made up of gear disk 17.2 and gear bush 17.1, gear disk 17.2 is provided with projection 17.4, as shown in Figure 10.
Driven movable cone dish 10 described in this fuel-engined vehicle electric controlling stepless variable speed case has the cone dish be nested with on driven shaft and the axle sleeve be nested with on driven shaft and connects and composes, axle sleeve is provided with the spiral chute of two symmetrical transmission torsion, two spiral chutes are nested with drive pin 19 two ends fixing on driven shaft, and spiral fluted hypotenuse contacts with the drive pin be fixed on driven shaft is corresponding.
This driven shaft one end described in fuel-engined vehicle electric controlling stepless variable speed case is provided with the reduced diameter section in order to fixing follower fixed cone dish 8, the middle part of driven shaft is provided with the enlarged diameter section in order to the cone of follower activity in axial sliding dish 10, the driven shaft of enlarged diameter section is provided with the drive pin 19 corresponding with driver slot on follower movable cone dish 10 axle sleeve; The reduced diameter section of the driven shaft the other end is sequentially provided with the gear installation position of spring seat 34 installation position, driven shaft bearing 35 installation position, suitable gear mechanism, and wherein the gear segment axle of suitable gear mechanism is splined shaft position.
This fuel-engined vehicle electric controlling stepless variable speed case, described having on the splined shaft concentric with driven shaft along gear mechanism is equipped with the gear 20 that moves ahead, fixing spline housing 23, backward gear 22, and described fixing spline housing 23 and splined shaft spline joint, as position A; Described fixing spline housing 23 is provided with the gear shift spline housing 21 of slip, described gear shift spline housing 21 endoporus is provided with the spline be connected with the gear 20 that moves ahead, backward gear 22, and gear shift spline housing 21 is outside equipped with the fork slot be connected with gear-change operation bar 14 upper shift fork; The described gear 20 that moves ahead is connected with a joggle by final gear 11 and differential mechanism 12, and described backward gear 22 is connected with a joggle with differential mechanism 12 by reverse gear third wheel 13, final gear 11, and gear-change operation bar 14 stretches out outside housing and is connected with gear arm 31.Wherein, the gear 20 that moves ahead is provided with the wheel tooth 20a that moves ahead, backward gear 22 is provided with backward wheel tooth 22a, fixing spline housing 23 is provided with fixing spline housing tooth 23a and gear shift spline housing 21 spline joint, as position B.
This casing 1 described in fuel-engined vehicle electric controlling stepless variable speed case, comprising: the housing 25 of stepless speed variator be combined with bonnet 26 form rear chamber, stepless speed variator housing 25 be combined the front cavity formed with protecgulum 24; Described rear chamber, comprise: in order to hold electric speed regulation drive unit electric speed regulation drive unit cavity, in order to hold driving wheel transfer mechanism driving wheel transfer mechanism cavity, in order to hold the follower transfer mechanism cavity of follower transfer mechanism, the side of described driving wheel transfer mechanism cavity is set to automatically controlled speed governing cavity, and opposite side is set to follower transfer mechanism cavity;
The housing corresponding with described driving wheel transfer mechanism cavity has makes the driving shaft of driving wheel transfer mechanism pass and bearings mounted circular mounting hole; To be coaxially arranged with in cavity before corresponding with the circular mounting hole of housing drive shaft bearing to hold on driving shaft 27 and driving shaft be nested with the clutch cavity of clutch; The axial corresponding end holding clutch 2 axle with clutch cavity is provided with coaxial engine flywheel cavity; The dead in line of the axis of the circular mounting hole of described bearing, the axis of clutch cavity and engine flywheel cavity;
The housing corresponding with described follower transfer mechanism cavity has makes the driven shaft 28 of follower transfer mechanism pass and bearings mounted circular mounting hole; The suitable gearshift cavity that falls in order to hold to fall along gearshift is coaxially arranged with in cavity before corresponding with the circular mounting hole of housing driven shaft bearing;
Described suitable gearshift cavity side accommodates shifting-fork gear-shifting bar 14 cavity with the shifting-fork gear-shifting bar be connected along shifting sleeve on gearshift driven shaft; Opposite side accommodates the reverse gear cavity with the reverse gear be connected along backward gear on gearshift driven shaft, be provided with below reverse gear cavity in order to hold and to fall along the gear that moves ahead on gearshift driven shaft, and the final gear cavity of final gear 11 that reverse gear is connected;
The side-lower of described final gear cavity is provided with the differential mechanism cavity in order to hold the differential mechanism 12 be connected with a joggle with final gear.
The driving shaft speed probe 15 of microcontroller acquires interface with monitoring driving shaft rotating speed that this gearbox control described in fuel-engined vehicle electric controlling stepless variable speed case has processing signals, the output speed sensor 16 of monitoring output speed are electrically connected; The pulse-width modulation PWM end interface of microprocessor is electrically connected with the adjustment motor 5 for speed change through motor-drive circuit; Microprocessor analog-to-digital conversion interface is connected with the speed governing sensor electrical of monitoring engine throttle, is connected with the skidding sensor electrical of monitoring braking state.
A kind of stepless change method of fuel-engined vehicle electric controlling stepless variable speed case, the spiral thrust device controlled by electric speed regulation drive unit, change the driving belt radius of clean-up on driving wheel transfer mechanism driving wheel and the driving belt radius of clean-up on follower transfer mechanism follower, regulate the speed ratio of driving shaft and driven shaft to change, its step is as follows:
1), forward travel time, electric speed regulation drive unit is energized, and the adjustment motor that gearbox control controls is in and treats working state, and the speed ratio of driving shaft and driven shaft, remains unchanged;
Ato unit, motor drives the driving wheel of driving wheel transfer mechanism to rotate by clutch 2, driving wheel drives the follower of follower transfer mechanism to rotate by rubber transmission belting 9, and driven movable cone dish 10 torque force on follower promotes drive pin 19 by the spiral chute on driven movable cone dish 10 axle sleeve and is delivered on driven shaft; Falling along gear mechanism by final gear 11, differential mechanism 12 externally output torque on driven shaft;
Simultaneously, the microprocessor of gearbox control is by monitoring the electrical signal of the electrical signal of the driving wheel speed probe 15 of driving shaft rotating speed, the secondary speed sensor 16 of monitoring output speed, and the electrical signal of the throttle line sensor of Monitoring and Controlling engine speed, process through microprocessor, the sense of rotation of regulating and controlling motor 5 and rotating speed, reach the speed ratio automatically regulating driving shaft and driven shaft;
A) when starting to walk or go up a slope, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, compared with the starting speed ratio of the driving shaft calculated and the speed ratio of driven shaft and the driving shaft of storage and driven shaft or upward slope speed ratio, speed ratio is identical, microprocessor judges is starting or upward slope state, increase speed ratio, regulating and controlling motor 5 rotates backward, spiral thrust device is driven to reduce work half radius of rubber transmission belting 9 on driving wheel by train of reduction gears 4, increase the radius of clean-up of rubber transmission belting 9 on follower, increase driving shaft and driven shaft speed ratio, assisted deceleration, increase moment of torsion, or manually the button controlled on gearbox control directly increases speed ratio, assisted deceleration, increases moment of torsion,
Wherein, speed regulation gear 17 internal thread of spiral thrust device rotates along the outside thread of spiral thrust seat 7, speed regulation gear 17 is made to drive active movement cone dish 6 slowly to leave initiatively fixed cone dish 3 along axle, increase cross section between the movable cone dish 6 of driving wheel and driving wheel fixed cone dish 3 and form the spacing of " V " type groove, driving belt 9 is moved to drive sprocket axle core, reduces the radius of clean-up of driving wheel upper driving band (9);
Simultaneously, along with the dragging of driving belt 9 at follower is loosened, on driven shaft, the movable cone dish 10 of follower is by the effect of thrust spring 32 axial force, rubber transmission belting 9 is moved to follower edge, reduce cross section between follower fixed cone dish 8 and follower movable cone dish 10 and form the spacing of " V " type groove, thus realize the movable cone dish 10 of follower and close up with follower fixed cone dish 8, increase the radius of clean-up of rubber transmission belting 9 on follower, drive pin 19 is promoted by the symmetric helix groove that follower movable cone dish 10 axle sleeve is arranged, directly torque force is delivered on driven shaft, thus reach vehicle deceleration,
B) when level road, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, the driving shaft calculated and the speed ratio of driven shaft are with the driving shaft of storage compared with the level road speed ratio of driven shaft, and speed ratio is identical, and microprocessor judges is level road state;
When motor 1 speedup, send instruction, reduce the speed ratio of driving shaft and driven shaft, regulating and controlling motor 5 rotates forward, and regulates motor 5 by train of reduction gears 4, spiral thrust device, the radius of clean-up of rubber transmission belting 9 on driving wheel to be increased; On follower, the radius of clean-up of rubber transmission belting 9 reduces, and reaches the speed ratio reducing driving shaft and driven shaft, and assisting vehicle accelerates;
Wherein, speed regulation gear 17 internal thread of spiral thrust device rotates along the outside thread of spiral thrust seat 7, the movable cone dish 6 of driving wheel that speed regulation gear 17 is connected by angular contact ball bearing 17.3 is axially slowly mobile to work along driving wheel fixed cone dish 3, reduce cross section between the movable cone dish 6 of driving wheel and driving wheel fixed cone dish 3 and form the spacing of " V " type groove, along with rubber transmission belting 9 drags the rotation of follower, gradually increase the radius of clean-up of rubber transmission belting 9 between the movable cone dish 6 of driving wheel and driving wheel fixed cone dish 3;
Simultaneously, the rubber transmission belting 9 of tension, impel the movable cone dish 10 of the follower on driven shaft overcome spring force and follower fixed cone dish 8 from, thus realize driven movable cone dish 10 and open with driven fixed cone dish 8, increase cross section between follower fixed cone dish 8 and follower movable cone dish 10 and form the spacing of " V " type groove, reduce the radius of clean-up of rubber transmission belting 9 on follower, thus realize vehicle speedup;
When the electrical signal that microprocessor monitors receives engine throttle line sensor reduces, microprocessor judges motor slows down, the adjustment motor 5 of Microprocessor S3C44B0X, and the speed ratio of driving shaft and driven shaft is remained unchanged;
When microprocessor monitors receives the electrical signal of brake, microprocessor sends instruction, make adjustment motor 5 reduce the radius of clean-up of rubber transmission belting 9 on driving wheel by spiral thrust device, increase the radius of clean-up of rubber transmission belting 9 on follower, deceleration auxiliary brake;
C) during descending, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, the driving shaft calculated and the speed ratio of driven shaft with the driving shaft of storage compared with the descending speed ratio of driven shaft, speed ratio is identical, Microprocessor S3C44B0X regulates motor 5 static, and the speed ratio of driving shaft and driven shaft remains unchanged;
When microprocessor monitors receives the electrical signal of brake, microprocessor sends instruction, by the radius of clean-up regulating motor 5, spiral thrust device to reduce rubber transmission belting 9 on driving wheel, increase the radius of clean-up of rubber transmission belting 9 on follower, deceleration auxiliary brake;
2), when traveling need be swung to, by the gear-change operation bar 14 along gear mechanism, gear shift spline housing 21 is departed from the gear 20 that moves ahead, make gear shift spline housing 21 and backward gear 22 spline joint, backward gear 22, by reverse gear third wheel 13, makes final gear 11, differential mechanism 12 externally reverse output torque; Fuel-engined vehicle backward backward travels;
Simultaneously, gearbox control sends instruction, motor 5 is regulated to rotate backward, train of reduction gears 4 is made to drive speed regulation gear 17 to drive active movement cone dish 6 gradually to leave initiatively fixed cone dish 3 vertically, reduce the radius of clean-up of rubber transmission belting 9 on driving wheel, increase the radius of clean-up of rubber transmission belting 9 on follower, realize the backward of lower-speed state.
Above embodiment is the one of the present invention's more preferably embodiment, and the usual change that those skilled in the art carry out within the scope of the technical program and replacing should be included in protection scope of the present invention.

Claims (9)

1. a fuel-engined vehicle electric controlling stepless variable speed case, is characterized in that: comprise have in casing, casing electric speed regulation drive unit, clutch, driving wheel transfer mechanism, follower transfer mechanism, fall along gear mechanism, final gear and differential mechanism;
The driving wheel that described driving wheel transfer mechanism has the driving shaft for connecting clutch (2) and is nested with to follower transfer mechanism transfer of torque on driving shaft, driving wheel includes the driving wheel fixed cone dish (3) be fixed on driving shaft cone dish (6) movable with the driving wheel be nested with on driving shaft, and movable cone dish (6) of driving wheel is connected with the spiral thrust device be nested with on driving shaft by angular contact ball bearing; And form " V " type belt grooves having and change the driving wheel upper driving band radius of clean-up between driving wheel fixed cone dish (3) and movable cone dish (6) of driving wheel;
Described follower transfer mechanism comprises: the driven shaft of transfer of torque, the follower to driven shaft transfer of torque, follower includes and is nested with follower fixed cone dish (8) also fixing on driven shaft and is nested with movable cone dish (10) of follower on driven shaft, the thrust spring that movable cone dish (10) axle sleeve of follower is nested with contacts with the spring seat on driven shaft, or thrust spring is contacted with the spring seat on driven shaft by thrust-bearing; The driver slot that movable cone dish (10) axle sleeve of described follower is arranged is nested with on the drive pin (19) of driven shaft; And form " V " type belt grooves had for changing the follower upper driving band radius of clean-up between follower fixed cone dish 8 and movable cone dish (10) of follower;
The driving shaft of described driving wheel transfer mechanism is connected with motor by clutch (2), and the driving wheel be nested with on driving shaft is connected by the follower of driving belt with follower transfer mechanism; The spiral thrust device connecting movable cone dish (6) of driving wheel is connected with electric speed regulation drive unit;
Falling that the driven shaft of described follower transfer mechanism is arranged has the gear that moves ahead engaged with final gear (11) along gear mechanism, and by backward gear that reverse gear engages with final gear (11); And this final gear (11) is connected with differential mechanism (12) gears meshing;
Wherein, described electric speed regulation drive unit has adjustment motor (5), train of reduction gears, the gearbox control of speed change, is connected by train of reduction gears with the described adjustment motor (5) that gearbox control is electrically connected with described spiral thrust device;
Wherein, housing is provided with the driving shaft speed probe (15) of a monitoring driving shaft rotating speed; Housing is provided with the output speed sensor (16) of a monitoring output speed.
2. a kind of fuel-engined vehicle electric controlling stepless variable speed case according to claim 1, it is characterized in that: described clutch is centrifugal clutch (2), include clutch housing (2.2) and spline housing (2.9), described clutch housing (2.2) is fixedly connected with by the inner ring being with the shell of spline with band internal spline and forms, clutch housing (2.2) has the inner chamber of accommodation spline housing (2.9) bearing housing, and holds the exocoel of thrust collar dish (2.4);
The exocoel of clutch housing (2.2) and thrust collar dish (2.4) form in the tapered thrust cavity in cross section and are evenly equipped with some centrifugal steel balls (2.3);
The inner ring of the band internal spline of clutch housing (2.2) and line shaft (2.1) spline joint of connecting engine axle, the unidirectional sliding connection of unilateral bearing (2.10) inner ring in line shaft (2.1) external part and spline housing (2.9) bearing housing;
The outer chamber wall of clutch housing (2.2) and stretch into this cavity spline housing (2.9) outer wall between form clutch cavity, spring return function cavity respectively;
The spline of clutch housing (2.2) wall in clutch cavity is evenly equipped with some clutch steel discs (2.6); Some clutch friction plates (2.7) uniform on the spline of spline housing (2.9) outer wall and some clutch steel discs (2.6) intercross arrangement, the annular boss of thrust collar dish (2.4) another side in clutch cavity contacts with the first clutch steel disc (2.6) of intercross arrangement, the end clutch steel disc (2.6) of intercross arrangement is provided with clutch snap ring (2.8), and clutch snap ring (2.8) clip is in the outer chamber wall of clutch housing (2.2);
Be provided with return spring (2.5) in the spring return function cavity of clutch housing (2.2), return spring one end is fixed on the return spring the other end in the spring groove on thrust disc (2.4) and is fixed on by annular spring base in the draw-in groove of the interior ring outer wall of clutch housing (2.2);
Wherein, clutch steel disc (2.6) and the spline joint on clutch housing (2.2) inwall, clutch friction plate (2.7) and the spline joint on spline housing (2.9);
Wherein, the thrust disc (2.4) of displacement is vertically arranged on the interior ring outer wall of clutch housing (2.2) band internal spline by flat key.
3. a kind of fuel-engined vehicle electric controlling stepless variable speed case according to claim 1, it is characterized in that: described spiral thrust device has the speed regulation gear (17) of movable part and the spiral thrust seat (7) of fixed component, the internal thread that in speed regulation gear (17) hole, one end is arranged and the outside thread screwed connection of spiral thrust seat (7), spiral thrust seat (7) is nested with on driving shaft by bearing, and the outer ring of spiral thrust seat (7) is arranged in the axis hole of casing; Spiral thrust seat (7) and driving shaft axially locating, spiral thrust seat (7) is provided with the locating slot that restriction spiral thrust seat (7) is rotated, locating slot is corresponding with the locating stud of casing axis hole; In speed regulation gear (17) hole, the other end is provided with angular contact ball bearing seat, the angular contact ball bearing of angular contact ball bearing seat internal fixtion be nested with movable cone dish (6) of driving wheel that flat key on driving shaft is connected and be fixedly connected with; Or replace with ball screw thrust device; Ball screw thrust device is connected and composed by ball engagement by the internal thread of speed regulation gear (17) and the outside thread of spiral thrust seat (7).
4. a kind of fuel-engined vehicle electric controlling stepless variable speed case according to claim 1, it is characterized in that: described driven movable cone dish (10) has the cone dish be nested with on driven shaft and the axle sleeve be nested with on driven shaft and connects and composes, axle sleeve is provided with the spiral chute of two symmetrical transmission torsion, two spiral chutes are nested with drive pin (19) two ends fixing on driven shaft, and spiral fluted hypotenuse contacts with the drive pin be fixed on driven shaft is corresponding.
5. a kind of fuel-engined vehicle electric controlling stepless variable speed case according to claim 1, it is characterized in that: described driven shaft one end is provided with the reduced diameter section in order to fixing follower fixed cone dish (8), the middle part of driven shaft is provided with the enlarged diameter section in order to movable cone dish (10) of follower in axial sliding, the driven shaft of enlarged diameter section is provided with the drive pin (19) that on cone dish (10) axle sleeve movable with follower, driver slot is corresponding; The reduced diameter section of the driven shaft the other end is sequentially provided with the gear installation position of spring seat (34) installation position, driven shaft bearing (35) installation position, suitable gear mechanism, and wherein the gear segment axle of suitable gear mechanism is splined shaft position.
6. a kind of fuel-engined vehicle electric controlling stepless variable speed case according to claim 1, it is characterized in that: described have the splined shaft concentric with driven shaft along gear mechanism, splined shaft is equipped with the gear that moves ahead (20), fixing spline housing (23), backward gear (22), described fixing spline housing (23) and splined shaft spline joint, described fixing spline housing (23) is provided with the gear shift spline housing (21) of slip, the spline with the gear that moves ahead (20) or backward gear (22) spline joint is provided with in described gear shift spline housing (21), gear shift spline housing (21) is outside equipped with the fork slot be connected with gear-change operation bar (14) upper shift fork, the described gear that moves ahead (20) is connected with a joggle by final gear (11) and differential mechanism (12), and described backward gear (22) is connected with a joggle with differential mechanism (12) by reverse gear third wheel (13), final gear (11).
7. a kind of fuel-engined vehicle electric controlling stepless variable speed case according to claim 1, it is characterized in that: described casing, comprising: the housing (25) of stepless speed variator and bonnet (26) combine the rear chamber, the housing (25) of stepless speed variator and the protecgulum (24) that form and combine the front cavity formed; Described rear chamber, comprise: in order to hold electric speed regulation drive unit electric speed regulation drive unit cavity, in order to hold driving wheel transfer mechanism driving wheel transfer mechanism cavity, in order to hold the follower transfer mechanism cavity of follower transfer mechanism, the side of described driving wheel transfer mechanism cavity is set to automatically controlled speed governing cavity, and opposite side is set to follower transfer mechanism cavity;
The housing corresponding with described driving wheel transfer mechanism cavity has makes the driving shaft of driving wheel transfer mechanism (27) pass and bearings mounted circular mounting hole; To be coaxially arranged with in cavity before corresponding with the circular mounting hole of housing drive shaft bearing to hold on driving shaft (27) and driving shaft be nested with the clutch cavity of clutch; The axial corresponding end holding clutch (2) axle with clutch cavity is provided with coaxial engine flywheel cavity; The dead in line of the axis of the circular mounting hole of described bearing, the axis of clutch cavity and engine flywheel cavity;
The housing corresponding with described follower transfer mechanism cavity has makes the driven shaft of follower transfer mechanism (28) pass and bearings mounted circular mounting hole; The suitable gearshift cavity that falls in order to hold to fall along gearshift is coaxially arranged with in cavity before corresponding with the circular mounting hole of housing driven shaft bearing;
Described suitable gearshift cavity side accommodates shifting-fork gear-shifting bar (14) cavity with the shifting-fork gear-shifting bar be connected along shifting sleeve on gearshift driven shaft; Opposite side accommodates the reverse gear cavity with the reverse gear be connected along backward gear on gearshift driven shaft, be provided with below reverse gear cavity in order to hold and to fall along the gear that moves ahead on gearshift driven shaft, and the final gear cavity of final gear (11) that reverse gear is connected;
The side-lower of described final gear cavity is provided with the differential mechanism cavity in order to hold the differential mechanism (12) be connected with a joggle with final gear.
8. a kind of fuel-engined vehicle electric controlling stepless variable speed case according to claim 1, is characterized in that: the driving shaft speed probe (15) of the microcontroller acquires interface that described gearbox control has a processing signals and monitoring driving shaft rotating speed, the output speed sensor (16) of monitoring output speed are electrically connected; Microprocessor pulse-width modulation PWM end interface is electrically connected with the adjustment motor (5) for speed change through motor-drive circuit; Microprocessor analog-to-digital conversion interface is connected with the speed governing sensor electrical of monitoring engine throttle, is connected with the skidding sensor electrical of monitoring braking state.
9. the stepless change method of a kind of fuel-engined vehicle electric controlling stepless variable speed case as claimed in claim 1, it is characterized in that: the spiral thrust device controlled by electric speed regulation drive unit, change the driving belt radius of clean-up on driving wheel transfer mechanism driving wheel and the driving belt radius of clean-up on follower transfer mechanism follower, regulate the speed ratio of driving shaft and driven shaft to change, its step is as follows:
1), forward travel time, electric speed regulation drive unit is energized, and the adjustment motor that gearbox control controls is in and treats working state, and the speed ratio of driving shaft and driven shaft, remains unchanged;
Ato unit, motor drives the driving wheel of driving wheel transfer mechanism to rotate by clutch (2), driving wheel drives the follower of follower transfer mechanism to rotate by rubber transmission belting (9), and driven movable cone dish (10) torque force on follower promotes drive pin (19) by the spiral chute on driven movable cone dish (10) axle sleeve and is delivered on driven shaft; Falling along gear mechanism by final gear (11), differential mechanism (12) externally output torque on driven shaft;
Simultaneously, the microprocessor of gearbox control is by monitoring the electrical signal of the electrical signal of the driving wheel speed probe (15) of driving shaft rotating speed, the secondary speed sensor (16) of monitoring output speed, and the electrical signal of the throttle line sensor of Monitoring and Controlling engine speed, process through microprocessor, the sense of rotation of regulating and controlling motor (5) and rotating speed, reach the speed ratio automatically regulating driving shaft and driven shaft;
A) when starting to walk or go up a slope, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, compared with the starting speed ratio of the driving shaft calculated and the speed ratio of driven shaft and the driving shaft of storage and driven shaft or upward slope speed ratio, speed ratio is identical, microprocessor judges is starting or upward slope state, increase speed ratio, regulating and controlling motor (5) rotates backward, spiral thrust device is driven to reduce the radius of clean-up of rubber transmission belting (9) on driving wheel by train of reduction gears (4), increase the radius of clean-up of rubber transmission belting (9) on follower, increase the speed ratio of driving shaft and driven shaft, assisted deceleration, increase moment of torsion, or manually the button controlled on gearbox control directly increases speed ratio, assisted deceleration, increases moment of torsion,
Wherein, speed regulation gear (17) internal thread of spiral thrust device rotates along the outside thread of spiral thrust seat (7), speed regulation gear (17) is made to drive active movement cone dish (6) slowly to leave initiatively fixed cone dish 3 along axle, increase cross section between movable cone dish (6) of driving wheel and driving wheel fixed cone dish (3) and form the spacing of " V " type groove, driving belt (9) is moved to drive sprocket axle core, reduces the radius of clean-up of driving wheel upper driving band (9);
Simultaneously, along with driving belt (9) loosens in the dragging of follower, on driven shaft, movable cone dish (10) of follower is by the effect of thrust spring (32) axial force, rubber transmission belting (9) is moved to follower edge, reduce cross section between follower fixed cone dish (8) and follower movable cone dish (10) and form the spacing of " V " type groove, thus realize movable cone dish (10) of follower and close up with follower fixed cone dish (8), increase the radius of clean-up of rubber transmission belting (9) on follower, drive pin (19) is promoted by the symmetric helix groove that movable cone dish (10) axle sleeve of follower is arranged, directly torque force is delivered on driven shaft, thus reach vehicle deceleration,
B) when level road, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, and the driving shaft calculated and the speed ratio of driven shaft are with the driving shaft of storage compared with the level road speed ratio of driven shaft, and speed ratio is identical, microprocessor judges is level road state
When motor 1 speedup, send instruction, reduce the speed ratio of driving shaft and driven shaft, regulating and controlling motor (5) rotates forward, and regulates motor (5) by train of reduction gears (4), spiral thrust device, the radius of clean-up of rubber transmission belting on driving wheel (9) to be increased; On follower, the radius of clean-up of rubber transmission belting (9) reduces, and reaches the speed ratio reducing driving shaft and driven shaft, and assisting vehicle accelerates;
Wherein, speed regulation gear (17) internal thread of spiral thrust device rotates along the outside thread of spiral thrust seat (7), movable cone dish (6) of driving wheel that speed regulation gear (17) is connected by angular contact ball bearing (17.3) is axially slowly mobile to work along driving wheel fixed cone dish (3), reduce cross section between movable cone dish (6) of driving wheel and driving wheel fixed cone dish (3) and form the spacing of " V " type groove, along with rubber transmission belting (9) drags the rotation of follower, gradually the radius of clean-up of rubber transmission belting (9) between movable cone dish (6) of driving wheel and driving wheel fixed cone dish (3) is increased,
Simultaneously, the rubber transmission belting (9) of tension, impel movable cone dish (10) of the follower on driven shaft overcome spring force and follower fixed cone dish (8) from, thus realize driven movable cone dish (10) and driven fixed cone dish (8) and open, increase cross section between follower fixed cone dish (8) and follower movable cone dish (10) and form the spacing of " V " type groove, reduce the radius of clean-up of rubber transmission belting (9) on follower, thus realize vehicle speedup;
When the electrical signal that microprocessor monitors receives engine throttle line sensor reduces, microprocessor judges motor slows down, and the adjustment motor (5) of Microprocessor S3C44B0X, makes the speed ratio of driving shaft and driven shaft remain unchanged;
When microprocessor monitors receives the electrical signal of brake, microprocessor sends instruction, make adjustment motor (5) reduce the radius of clean-up of rubber transmission belting (9) on driving wheel by spiral thrust device, increase the radius of clean-up of rubber transmission belting (9) on follower, deceleration auxiliary brake;
C) during descending, the microprocessor of gearbox control carries out computing to each electrical signal that monitoring receives, the driving shaft calculated and the speed ratio of driven shaft with the driving shaft of storage compared with the descending speed ratio of driven shaft, speed ratio is identical, Microprocessor S3C44B0X regulates motor (5) static, and the speed ratio of driving shaft and driven shaft remains unchanged;
When microprocessor monitors receives the electrical signal of brake, microprocessor sends instruction, by the radius of clean-up regulating motor (5), spiral thrust device to reduce rubber transmission belting (9) on driving wheel, increase the radius of clean-up of rubber transmission belting (9) on follower, deceleration auxiliary brake;
2), when traveling need be swung to, by the gear-change operation bar (14) along gear mechanism, gear shift spline housing (21) is departed from the gear (20) that moves ahead, make gear shift spline housing (21) and backward gear (22) spline joint, backward gear (22), by reverse gear third wheel (13), makes final gear (11), differential mechanism (12) externally reverse output torque; Fuel-engined vehicle backward backward travels;
Simultaneously, gearbox control sends instruction, motor (5) is regulated to rotate backward, train of reduction gears (4) is made to drive speed regulation gear (17) to drive active movement cone dish (6) gradually to leave initiatively fixed cone dish 3 vertically, reduce the radius of clean-up of rubber transmission belting (9) on driving wheel, increase the radius of clean-up of rubber transmission belting (9) on follower, realize the backward of lower-speed state.
CN201410495583.XA 2014-09-25 2014-09-25 Electric control continuously variable transmission of oil-fired vehicle and speed changing method Pending CN104358849A (en)

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CN113417982A (en) * 2021-06-15 2021-09-21 冀满喜 Multi-belt transmission automatic clutch motor gear shifting fork control continuously variable transmission
CN116404803A (en) * 2023-06-07 2023-07-07 华侨大学 Variable-speed variable-torque electric cylinder and engineering machinery thereof

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Application publication date: 20150218