CN101525034B - Double cam self-adapting automatic gear shifting hub - Google Patents
Double cam self-adapting automatic gear shifting hub Download PDFInfo
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- CN101525034B CN101525034B CN2009101035079A CN200910103507A CN101525034B CN 101525034 B CN101525034 B CN 101525034B CN 2009101035079 A CN2009101035079 A CN 2009101035079A CN 200910103507 A CN200910103507 A CN 200910103507A CN 101525034 B CN101525034 B CN 101525034B
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Abstract
The invention discloses a double cam self-adapting automatic transmission hub, comprising a power plant, a bottom fork, a box, a brake device, a transmission shaft which is arranged in and matches the box aswirl, a slow gear transmission mechanism and a conical disc clutch double cam self-adapting transmission assembly; wherein, a slow gear transmission shaft is arranged in and matches the box aswirl as well as is parallel to the transmission shaft. The double cam self-adapting automatic transmission hub not only keeps the output power of motors and the driving conditions of vehicles in the optimum matching state and realizes balance control of the driving moment of vehicles and comprehensive running resistance, but also does not need to hand off transmission chains when backing vehicles, has the same backing operation as the common vehicles and simple operation and self adapts to automatic transmission along with the variation of running resistance under the condition of not cutting off the driving force. The double cam self-adapting automatic transmission hub is beneficial for energy efficiency of vehicles and mechanical power equipments and has the characteristics of small volume, light weight, simple structure and suitability for installation on the hub and for portable electric bicycles with small volume.
Description
Technical field
The present invention relates to a kind of Vehicular hub, particularly a kind of double cam self-adapting automatic gear shifting hub.
Background technology
In the prior art, automobile, motor bike, Electrical Bicycle all are by governor handle or acceleration pedal direct control throttle gate or current control speed basically, or adopt manual mechanical automatic transmission mode to realize speed change.The operation of navigating mate is depended in the operation of handle or acceleration pedal fully, usually can cause operation and garage's situation not to match, and causes motor or driving engine fluctuation of service, the stall phenomenon occurs.
Self-propelled vehicle by rider under the situation of not knowing resistance to motion, only rule of thumb operate the transmission system of control, have following problem unavoidably: 1. when startup, upward slope and heavy load, since resistance to motion increase, force motor or engine speed to descend, driving engine stall, heating even stop operating in the work of low efficiency district.2. owing to there is not mechanical transmission to adjust moment of torsion and speed, can only promote the use of, can not satisfy under mountain area, hills and the heavy load conditions and use, dwindle range of use at region of no relief; 3. drive wheel place installing space is little, has installed to be difficult to hold automatic transmission with hydraulic torque converter and other up-to-date technology behind driving engine or the motor again; 4. do not possess adaptive function, can not detect, revise and get rid of the operation mistake of chaufeur automatically; 5. change when unexpected in the speed of a motor vehicle, motor or driving engine are under the unstable state operating mode turn round, must cause motor or engine power and resistance to motion to be difficult to coupling.6. continuing, distance is short, hill climbing ability is poor, and applicable area is little.
In order to overcome the above problems, a series of cam self-adapting automatic gear shifting device has appearred, utilize the resistance to motion power cam, reach self-shifting purpose; For cooperating self shifter, overriding clutch is set, and there is shunting in transmission; When moveing backward, cross owing to keep off and keep off slowly the transmission existence soon, thereby can make change-speed box stuck, can't move backward; For solving the reversing problem, reversing gear is set on automatic transmission with hydraulic torque converter, when needing reversing, messenger chain is separated by driver's driving, realize reversing; Owing to increased reversing gear, make speed changer structure become comparatively complicated, improve cost of manufacture, and need the driver manually to move backward, use also comparatively complicated.
Therefore, need a kind of automatic gear shift hub, not only can self adaptation do not cut off under the situation of propulsive effort and carry out shift speed change automatically with the change in resistance of travelling, solve the little problem that can not satisfy road usage under the complex conditions of motor torque-rotation speed change, and reversing is without the hand off messenger chain, simple in structure, volume is little, in light weight, installation footprint is little.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of double cam self-adapting automatic gear shifting hub, not only can detect driving torque-rotating speed and resistance to motion-vehicle speed signal automatically according to resistance to motion, make motor or engine output and traveling state of vehicle be in the optimum matching state all the time, realize the balance control of vehicular drive moment and comprehensive resistance to motion, can carry out shift speed change automatically with the change in resistance of travelling not needing to cut off under the situation of propulsive effort self adaptation, can satisfy under mountain area, hills and the heavy load conditions and use, the speed of a motor vehicle changes steady slow; And the reversing do not need the hand off messenger chain, car backing operation is identical with common vehicle.
Double cam self-adapting automatic gear shifting hub of the present invention, comprise engine installation, chain stay, casing, transmission shaft, wheel and be arranged on brake gear on the transmission shaft, described transmission shaft is arranged in the casing and its normal-running fit, the part of transmission shaft is stretched out casing and is outputed power, the left leg pipe and the right leg pipe of chain stay divide the Train Wheel left and right sides, also comprise keeping off transmission device and the cone-disk clutch double cam self-adapting speed changing assembly that is arranged on the transmission shaft slowly;
The described transmission device that keeps off slowly is an overdrive clutch formula transmission device;
Cone-disk clutch double cam self-adapting speed changing assembly comprises that the axial external cone plate of torus, the axial inner cone dish of torus gear ring, speed change spring and free-running fit are enclosed within the transmission gear on the transmission shaft;
The rotatable parts of described torus axial inner cone dish gear ring and engine installation are in the circumferencial direction heavy keying fit, and the axial inner cone dish of torus gear ring is by overdrive clutch formula transmission device and transmission gear engagement; Circle is the axial conical surface in the axial inner cone dish of the torus gear ring, and the axial external cone plate excircle of torus is the axial conical surface, and the mode that the axial inner cone dish of torus gear ring is worked in coordination with the conical surface is enclosed within the axial external cone plate excircle of torus;
Described transmission shaft circumference is provided with the cam path that an above spiral launches, be processed with the pin-and-hole identical on the axial external cone plate circumference of torus with cam path quantity, the axial external cone plate free-running fit of torus is enclosed within on the transmission shaft, and cam pin passes pin-and-hole and inserts cam path; Speed change gapping of spring engage sleeves is on transmission shaft, and the relative transmission shaft of an end fixedly installs, and the other end is by the axial external cone plate of torus, and the inner conical surface of the axial inner cone dish of torus gear ring and the male cone (strobilus masculinus) of the axial external cone plate of torus are fitted under the speed change action of the spring;
The axial external cone plate of described transmission gear and torus is provided with edge type strainer respectively and by the edge type strainer transmission of intermeshing.
Further, also comprise tubular sensing frame, described tubular sensing frame one end and the axial external cone plate heavy keying fit of torus, the other end fixedly installs annular magnetic steel, with the axial relative fixed of annular magnetic steel Hall element is set;
Further, brake gear is fixedly installed on the right leg pipe of chain stay, right leg tube end is provided with axle block, axle block is open-ended and ride over the bearing seat cylindrical of transmission shaft, described axle block open end seals by following fixed block, between following fixed block and the bearing seat adjustment piece is set, adjusts surface and the suitable shape of bearing seat cylindrical that piece contacts with the bearing seat cylindrical;
Further, also comprise fixed link and packing ring assembly, described axle block is provided with fixed orifice, the fixed orifice that described fixed link was fixedly installed on the brake gear support and passed successively packing ring assembly and axle block makes between axle block and the brake gear captives joint, described packing ring assembly comprises bulb packing ring and the spherical groove packing ring that is mated, and the bulb of described bulb packing ring presses the spherical groove of spherical groove packing ring;
Further, the end excircle that described spherical groove packing ring cooperates with the bulb packing ring is provided with annular boss, and the spherical groove packing ring extends into the fixed orifice of axle block, and annular boss presses axle block;
Further, also comprise fixed block, described fixed link is fixed by captive nut after passing axle block and fixed block successively, and the suitable shape of described fixed block end and bearing seat cylindrical also presses closer the bearing seat cylindrical; Bolt hole on the described fixed block is vertical waist shaped hole;
Further, described casing comprises left box body and right case, and described engine installation is the motor that is arranged in the left box body, and described left box body right part is provided with the tubular boss, described tubular boss is plugged on the right case, and the surface that the tubular boss cooperates with right case is provided with the o RunddichtringO; Described rotor by drive sleeve and the axial inner cone dish of torus gear ring in the circumferencial direction heavy keying fit, the drive sleeve cylindrical cooperates with the right side and the left side of left box body by the 3rd annular bearing with rolling contact and second annular bearing with rolling contact, and described the 3rd annular bearing with rolling contact seals by seal ring IV and left box body by seal ring III, second annular bearing with rolling contact; The bearing side seal of seal ring III and seal ring IV has lubricating oil;
Further, two ends, transmission shaft left and right sides cylindrical cooperates with the left side and the right side of casing by first annular bearing with rolling contact and the 4th annular bearing with rolling contact respectively, by seal ring V sealing, envelope has lubricating oil to described the 4th annular bearing with rolling contact in the described right case with extraneous;
Further, the support of brake gear is by the 5th annular bearing with rolling contact and transmission shaft normal-running fit, bearing sleeve is at the 5th annular bearing with rolling contact cylindrical, and described the 5th annular bearing with rolling contact two ends are provided with seal ring I and seal ring II respectively, and envelope has lubricating oil between seal ring I and the seal ring II;
Further, described speed change spring is a butterfly spring group, is arranged on the left side of the axial external cone plate of torus; The expansion direction of described cam path is opposite with transmission shaft takeoff output hand of rotation from left to right, and the edge type strainer pressure line expansion direction of transmission gear and the axial external cone plate of torus is identical with transmission shaft takeoff output hand of rotation from left to right; Between described speed change spring and the axial external cone plate of torus the 3rd surface bearing is set; Cam pin inserts cam path by the cam guide with its free-running fit.
The invention has the beneficial effects as follows: double cam self-adapting automatic gear shifting hub of the present invention, not only can detect driving torque-rotating speed and resistance to motion-vehicle speed signal according to resistance to motion, make motor or engine output and traveling state of vehicle be in the optimum matching state all the time, realize the balance control of vehicular drive moment and comprehensive resistance to motion, self adaptation is carried out shift speed change automatically with the change in resistance of travelling under the situation of not cutting off propulsive effort, and reversing does not need the hand off messenger chain, car backing operation is identical with common vehicle, and is simple to operate; The present invention not only helps vehicle and mechanical and power equipment is energy-efficient, can also the control vehicle emission abatement, improve dynamic property, economy, drive safety and the traveling comfort of vehicle greatly; Owing to can under the situation of not cutting off propulsive effort, self adaptation carry out shift speed change automatically with the change in resistance of travelling, can satisfy under mountain area, hills and the heavy load conditions and use, it is mild that motor or engine load are changed, and power actuated vehicle operates steadily, and improves safety; Compare with other automatic transmission with hydraulic torque converter, the present invention has advantages such as volume is little, in light weight, simple in structure, compact conformation, low cost of manufacture, is suitable for wheel hub and installs, and more accords with the little light characteristics of Electrical Bicycle volume.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is an axial section structural representation of the present invention;
Fig. 2 is a chain stay connection structure scheme drawing;
Fig. 3 be Fig. 2 along A to view;
Fig. 4 is that axial external cone plate of torus and the axial inner cone dish of torus gear ring cooperate radial cross-section;
Fig. 5 is the axial external cone plate structural representation of torus;
Fig. 6 is the transmission gear structural representation;
Fig. 7 is provided with the cam path structural representation on the transmission shaft;
Fig. 8 is the axle block structural representation;
Fig. 9 is the fixed-block-architecture (FBA) scheme drawing.
The specific embodiment
Fig. 1 is an axial section structural representation of the present invention, and as shown in the figure: the engine installation of present embodiment is a motor, sees from left to right during work that left-hand revolution, motor are external rotor electric machine.
Double cam self-adapting automatic gear shifting hub of the present invention comprises chain stay, casing 4, motor, transmission shaft 1, wheel 14 and brake gear 20, and chain stay comprises left leg pipe 7 and right leg pipe 18,18 fens Train Wheel 14 left and right sides of left leg pipe 7 and right leg pipe; Casing 4 comprises left box body 41 and right case 42, and motor is positioned at left box body 41 and is arranged on transmission shaft 1 excircle, and motor stator 8 is fixedly installed in the left box body 41;
Described left box body 41 right parts are provided with the tubular boss, and described tubular boss is plugged on the right case 42, and the surface that the tubular boss cooperates with right case 42 is provided with o RunddichtringO 38; Described rotor by drive sleeve and the axial inner cone dish of torus gear ring 27 in the circumferencial direction heavy keying fit, the drive sleeve cylindrical cooperates with the right side and the left side of left box body 41 by the 3rd annular bearing with rolling contact 28 and second annular bearing with rolling contact 3, and described the 3rd annular bearing with rolling contact 28 seals by seal ring IV 3a and left box body 41 by seal ring III 28a, second annular bearing with rolling contact 3; The bearing side seal of seal ring III 28a and seal ring IV 3a has lubricating oil; Employing has the lubricated electric machine structure of liquid oils, can prolong service life more than the twice, saves the operation and maintenance cost;
Two ends, transmission shaft 1 left and right sides cylindrical cooperates with the left side and the right side of casing by first annular bearing with rolling contact 2 and the 4th annular bearing with rolling contact 23 respectively; , by seal ring V 39 sealings, envelope has lubricating oil, the right-hand member of transmission shaft 1 to stretch out casing 4 and wheel 14 heavy keying fit to described the 4th annular bearing with rolling contact 23 in the described right case 42 with extraneous;
Also comprise and keep off transmission device and the cone-disk clutch double cam self-adapting speed changing assembly that is arranged on the transmission shaft slowly, slowly keeping off transmission device comprises and keeps off transmission shaft 12 slowly, slowly keep off between the left and right sides both ends of the surface of two ends, transmission shaft 12 left and right sides and right case 42 and cooperating by the 6th annular bearing with rolling contact 11 and the 7th annular bearing with rolling contact 19 respectively, it is parallel with transmission shaft 1 to keep off transmission shaft 12 slowly;
A. keep off slowly transmission device comprise be enclosed within side by side keep off slowly on the transmission shaft 12 and with its at the gear of retaining slowly 13 of circumferencial direction heavy keying fit with keep off overriding clutch 15 slowly, in the present embodiment, the mode of heavy keying fit adopts spline structure; Slowly keep off overriding clutch 15 and be provided with and keep off gear ring 16 slowly, keep off gear 13 slowly and keep off overriding clutch 15 outer rings slowly and adopt screw ways of connecting heavy keying fit at circumferencial direction; Slowly keep off overriding clutch 15 and be the roller type overriding clutch, the described gear ring 16 that keeps off slowly extends axially part as the inner ring that keeps off overriding clutch 15 slowly.
B. cone-disk clutch double cam self-adapting speed changing assembly comprises that the axial external cone plate 29 of torus, the axial inner cone dish of torus gear ring 27, speed change spring 5 and free-running fit are enclosed within the transmission gear 25 on the transmission shaft 1;
The axial inner cone dish of described torus gear ring 27 with keep off gear 13 engagements slowly, interior circle is the axial conical surface, the excircle of rotor 9 by drive sleeve and the axial inner cone dish of torus gear ring 27 by spline structure in the circumferencial direction heavy keying fit; Axial external cone plate 29 excircles of torus are the axial conical surface, and the mode that the axial inner cone dish of torus gear ring 27 is worked in coordination with the conical surface is enclosed within axial external cone plate 29 excircles of torus; The cam path 1a that uniform three spirals launch on described transmission shaft 1 circumference, be processed with the pin-and-hole 29a identical on axial external cone plate 29 circumference of torus with cam path 1a quantity, axial external cone plate 29 free-running fits of torus are enclosed within on the transmission shaft 1, cam pin 31 passes pin-and-hole 29a and inserts cam path 1a, described cam pin 31 inserts cam path 1a by the cam guide 31a with its free-running fit, to reduce the friction force between cam pin 31 and the cam path 1a; Speed change spring 5 free-running fits are enclosed within on the transmission shaft 1, one end fixedly installs near the relative transmission shaft 1 of boss that transmission shaft 1 is provided with, the other end passes through the 3rd surface bearing 17 near the axial external cone plate 29 of torus, avoid because of the friction force between speed change spring 5 and the axial external cone plate 29 of torus causes the speed change spring to reverse the alerting ability of influence action; The inner conical surface of the axial inner cone dish of torus gear ring 27 and the male cone (strobilus masculinus) of the axial external cone plate 29 of torus fit tightly under 5 effects of speed change spring, are provided with prestress adjustment circle 6 between the boss of speed change spring 5 and transmission shaft 1; Speed change spring 5 is arranged on the left side of the axial external cone plate 29 of torus, and in the cavity between rotor gear frame and transmission shaft 1, speed change spring 5 is a butterfly spring group in the present embodiment; The expansion direction of cam path 1a is opposite with transmission shaft 1 takeoff output hand of rotation from left to right, i.e. clockwise direction;
Also comprise tubular sensing frame 35, axial external cone plate 29 heavy keying fit of described tubular sensing frame 35 1 ends and torus, the other end fixedly installs annular magnetic steel 36, the axially relative Hall element 37 that on casing 4, fixedly installs with annular magnetic steel 36, detect because the axial external cone plate 29 of torus that resistance to motion causes moves axially distance by Hall element 37, directly transfer to control unit for vehicle, by the operation of control unit for vehicle, reach purpose energy-saving and cost-reducing and that reduce discharging according to displacement (resistance) situation control driving engine;
In the present embodiment, also comprise fixed link 32 and packing ring assembly, described axle block 22 is provided with fixed orifice, the fixed orifice that described fixed link 32 was fixedly installed on brake gear 20 supports and passed successively packing ring assembly and axle block 22 makes between axle block 22 and the brake gear 20 captives joint, described packing ring assembly comprises bulb packing ring 32a and the spherical groove packing ring 32b that is mated, the bulb of described bulb packing ring 32a presses the spherical groove of spherical groove packing ring 32b, bulb packing ring 32a and spherical groove packing ring 32b can self adaptation adjust the right alignment of brake gear and driving system during installation, and assurance device can normally move;
Described spherical groove packing ring 32b is provided with annular boss with the end excircle that bulb packing ring 32a cooperates, and spherical groove packing ring 32b extends into the fixed orifice of axle block 22, and annular boss presses axle block 22, and is simple in structure, easy for installation;
In the present embodiment, also comprise fixed block 10, described fixed link 32 passes axle block 22 successively and fixed block 10 backs are fixed by captive nut, the suitable shape of described fixed block 10 ends and bearing seat 33 cylindricals also presses closer bearing seat 33 cylindricals, can adjust installation error easily according to the assembling situation, the packing precision; Bolt hole 101 and bolt hole 102 on the fixed block are vertical waist shaped hole, are convenient to vertically regulate the installation site, reach the purpose of good fix;
The support of brake gear 20 is by the 5th annular bearing with rolling contact 21 and transmission shaft 1 normal-running fit, bearing seat 33 is enclosed within the 5th annular bearing with rolling contact 21 cylindricals, described the 5th annular bearing with rolling contact 21 two ends are provided with seal ring I 21a and seal ring II 21b respectively, envelope has lubricating oil between seal ring I 21a and the seal ring II 21b, guarantees bearing energy long-term operation;
During assembling, by the sphere boss 32a of adjustment fixed link 32 and the relative position between the bulb packing ring 32a, make between chain stay, brake gear 20 and the transmission shaft 1 and guarantee squareness, with fixed block 10 with adjust piece 34 engagings and tighten, make axle block and transmission shaft keep right alignment, avoid brake gear 20 and axle block to rub partially.
Above embodiment is an optimum structure of the present invention, is not the qualification to protection domain of the present invention; Such as, motor also is not limited to external rotor electric machine, also can be inner rotor motor, just on connection mode, adjust to some extent, or the like some technical characterictics all can make corresponding change, and do not influence the realization of this goal of the invention.
The fast retaining power transmission line of present embodiment:
The axial external cone plate 29 → cam pin of the axial inner cone dish of rotor → torus gear ring 27 → torus 31 → transmission shaft 1 → wheel 14.
Slowly keep off power transmission line:
The axial inner cone dish of rotor → torus gear ring 27 → slowly keeps off gear 13 → keep off slowly transmission shaft 12 → keep off slowly overriding clutch 15 → keep off the slowly axial external cone plate 29 → cam pin of gear ring 16 → transmission gear 25 → torus 31 → transmission shaft 1 → wheel 14.
Slowly keep off power transmission line and also pass through following route simultaneously: the axial external cone plate 29 of transmission gear 25 → edge type strainer Meshing Pair → torus → compression speed change spring 5, prevent to keep off slowly appearance compression speed change spring 5 past compound compression in the transmission process, prevent axial external cone plate 29 applyings of the axial inner cone dish of torus gear ring 27 and torus;
The reversing power transmission line:
The axial external cone plate 29 → transmission gear 25 of wheel 14 → transmission shaft 1 → torus → keep off slowly gear ring 16 → keep off slowly overriding clutch 15 → keep off slowly transmission shaft 12 → keep off the slowly axial inner cone dish of gear 13 → torus gear ring 27 → rotor
Simultaneously, the axial external cone plate 29 → edge type strainer Meshing Pair of wheel 14 → transmission shaft 1 → torus → compression speed change spring 5 breaks away from the axial external cone plate 29 of the axial inner cone dish of torus gear ring 27 and torus and fits, and realizes reversing smoothly;
Fast retaining of the present invention transmits the resistance transfer route and retaining transmission resistance transfer route is opposite with power transmission line slowly.
Resistance also passes through following route: the axial external cone plate 29 of transmission shaft 1 → cam pin 31 → torus → compression speed change spring 5; Simultaneously, the axial external cone plate 29 of torus → promotion tubular sensing frame 35 (annular magnetic steel 36) → Hall element 37 → control unit → driving engines;
The present invention is when operation, the inner conical surface of the axial inner cone dish of torus gear ring 27 and the male cone (strobilus masculinus) of the axial external cone plate 29 of torus fit tightly under 5 effects of speed change spring, form an automatic transmission that keeps certain pressure, and can enclose 6 thickness by the adjustment of increase prestress and adjust the required pressure of clutches engaged, reach the transmission purpose, at this moment, rotor drives the axial inner cone dish of torus gear ring 27, the axial external cone plate 29 of torus, cam pin 31, transmission shaft 1, makes wheel 14 left-hand revolutions; Slowly keeping off overriding clutch this moment is in and surmounts state.
Resistance is greater than propulsive effort during motor vehicle starting, and resistance forces transmission shaft 1 to clockwise rotate certain angle, and under the effect of cam path 1a, cam pin 31 drives the axial external cone plate 29 compression speed change springs 5 of torus to the direction motion of compression speed change spring 5; The axial external cone plate 29 of torus separates with the axial inner cone dish of torus gear ring 27, synchronously, slowly keep off the overriding clutch engagement, the driving motor rotor drive the axial inner cone dish of torus gear ring 27, slowly keep off gear 13, slowly keep off transmission shaft 12, slowly keep off overriding clutch 15, keep off gear ring 16, transmission gear 25, the axial external cone plate 29 of torus, cam pin 31, transmission shaft 1 slowly, wheel 14 is rotated with retaining speed slowly; Therefore, realize the bottom gear starting automatically, shortened cranking time, reduced starting power.Meanwhile, speed change spring 5 absorbs movement resistor moment energy, holds potential energy fully for recovering soon the gear transferring power.
After starting successfully, resistance to motion reduces, when component is reduced to less than in the speed change butterfly spring automatic transmission that speed change spring 5 produced pressure, because of producing speed change spring 5 pressure, the compression of passive movement resistance discharges promotion rapidly down, the inner conical surface of finishing the male cone (strobilus masculinus) of the axial external cone plate 29 of torus and the axial inner cone dish of torus gear ring 27 recovers to fit tightly state, keeps off overriding clutch slowly and is in and surmounts state.
In the reversing process, reversing power is delivered to the edge type strainer Meshing Pair by wheel 14, transmission shaft 1, the axial external cone plate 29 of torus, edge type strainer drives the axial external cone plate 29 compression speed change springs 5 of torus, the axial external cone plate 29 of the axial inner cone dish of torus gear ring 27 and torus is broken away from fit, realize reversing smoothly;
In the driving process,, realize variable block not needing to cut off under the situation of propulsive effort, make whole locomotive operation steady along with the variation self shifter principle of resistance of motion is the same, safe and low consumption, and also transfer route oversimplifies, and improves driving efficiency.
Fig. 2 is a chain stay connection structure scheme drawing, Fig. 3 be Fig. 2 along A to view, Fig. 8 is the axle block structural representation, Fig. 9 is the fixed-block-architecture (FBA) scheme drawing, as shown in the figure: brake gear 20 is fixedly installed on the right leg pipe 18 of chain stay, right leg pipe 18 ends are provided with axle block 22, axle block 22 is open-ended and ride over bearing seat 33 cylindricals of transmission shaft 1, described axle block 22 open ends seal by following fixed block 30, be provided with between following fixed block and the bearing seat 33 and adjust piece 34, adjust surface and the suitable shape of bearing seat 33 cylindricals that piece 34 contacts with bearing seat 33 cylindricals; Adopt detachable adjustment piece 34 structures, can according to circumstances adjust right alignment during installation, easy for installation and can guarantee that the long period of mechanism normally moves;
In the present embodiment, also comprise fixed link 32 and packing ring assembly, described axle block 22 is provided with fixed orifice, the fixed orifice that described fixed link 32 was fixedly installed on brake gear 20 supports and passed successively packing ring assembly and axle block 22 makes between axle block 22 and the brake gear 20 captives joint, described packing ring assembly comprises bulb packing ring 32a and the spherical groove packing ring 32b that is mated, the bulb of described bulb packing ring 32a presses the spherical groove of spherical groove packing ring 32b, bulb packing ring 32a and spherical groove packing ring 32b can self adaptation adjust the right alignment of brake gear and driving system during installation, and assurance device can normally move;
Described spherical groove packing ring 32b is provided with annular boss with the end excircle that bulb packing ring 32a cooperates, and spherical groove packing ring 32b extends into the fixed orifice of axle block 22, and annular boss presses axle block 22, and is simple in structure, easy for installation;
In the present embodiment, also comprise fixed block 10, described fixed link 32 passes axle block 22 successively and fixed block 10 backs are fixed by captive nut, the suitable shape of described fixed block 10 ends and bearing seat 33 cylindricals also presses closer bearing seat 33 cylindricals, can adjust installation error easily according to the assembling situation, the packing precision; Bolt hole 101 and bolt hole 102 on the fixed block are vertical waist shaped hole, are convenient to vertically regulate the installation site, reach the purpose of good fix;
During assembling, by the sphere boss 32a of adjustment fixed link 32 and the relative position between the bulb packing ring 32a, make between chain stay, brake gear 20 and the transmission shaft 1 and guarantee squareness, with fixed block 10 with adjust piece 34 engagings and tighten, make axle block and transmission shaft keep right alignment, avoid brake gear 20 and axle block to rub partially.
Fig. 4 is that axial external cone plate of torus and the axial inner cone dish of torus gear ring cooperate radial cross-section, and as shown in the figure: the mode that the axial inner cone dish of torus gear ring 27 is worked in coordination with the conical surface is enclosed within axial external cone plate 29 excircles of torus; The cam path 1a that uniform three spirals launch on transmission shaft 1 circumference, be processed with the pin-and-hole 29a identical on axial external cone plate 29 circumference of torus with cam path 1a quantity, axial external cone plate 29 free-running fits of torus are enclosed within on the transmission shaft 1, and cam pin 31 passes the inner conical surface of the axial inner cone dish of pin-and-hole 29a insertion cam path 1a torus gear ring 27 and the male cone (strobilus masculinus) of the axial external cone plate 29 of torus fits tightly.
Fig. 5 is the axial external cone plate structural representation of torus, Fig. 6 is the transmission gear structural representation, as shown in the figure: the axial external cone plate 29 of torus is provided with pin-and-hole 29a, right-hand member is provided with edge type strainer, transmission gear 25 left ends are provided with edge type strainer, the edge type strainer engagement of axial external cone plate 29 of torus and transmission gear 25 forms the edge type strainer Meshing Pair, and in the present embodiment, the pressure line of edge type strainer Meshing Pair is pressed anticlockwise direction from left to right and launched.
Fig. 7 is provided with the cam path structural representation on the transmission shaft, and as shown in the figure: the cam path 1a that three spirals of uniform processing launch on transmission shaft 1 circumference, in the present embodiment, cam path 1a presses the cw expansion from left to right.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. double cam self-adapting automatic gear shifting hub, comprise engine installation, chain stay, casing (4), transmission shaft (1), wheel (14) and be arranged on brake gear (20) on the transmission shaft (1), described transmission shaft (1) is arranged in the casing (4) and its normal-running fit, the part of transmission shaft (1) is stretched out casing (4) and is outputed power, the left leg pipe (7) of chain stay and right leg pipe (18) divide Train Wheel (14) left and right sides, it is characterized in that: also comprise and keep off transmission device and the cone-disk clutch double cam self-adapting speed changing assembly that is arranged on the transmission shaft (1) slowly;
The described transmission device that keeps off slowly is an overdrive clutch formula transmission device;
Cone-disk clutch double cam self-adapting speed changing assembly comprises that the axial external cone plate of torus (29), the axial inner cone dish of torus gear ring (27), speed change spring (5) and free-running fit are enclosed within the transmission gear (25) on the transmission shaft (1);
The rotatable parts of the axial inner cone dish of described torus gear ring (27) and engine installation are in the circumferencial direction heavy keying fit, and the axial inner cone dish of torus gear ring (27) is by overdrive clutch formula transmission device and transmission gear (25) engagement; Circle is the axial conical surface in the axial inner cone dish of the torus gear ring (27), and the axial external cone plate of torus (29) excircle is the axial conical surface, and the mode that the axial inner cone dish of torus gear ring (27) is worked in coordination with the conical surface is enclosed within the axial external cone plate of torus (29) excircle;
Described transmission shaft (1) circumference is provided with the cam path (1a) that an above spiral launches, be processed with the pin-and-hole (29a) identical on the axial external cone plate of torus (29) circumference with cam path (1a) quantity, the axial external cone plate of torus (29) free-running fit is enclosed within on the transmission shaft (1), and cam pin (31) passes pin-and-hole (29a) and inserts cam path (1a); Speed change spring (5) free-running fit is enclosed within on the transmission shaft (1), the relative transmission shaft of one end (1) fixedly installs, the other end is by the axial external cone plate of torus (29), and the male cone (strobilus masculinus) of the inner conical surface of the axial inner cone dish of torus gear ring (27) and the axial external cone plate of torus (29) is fitted under speed change spring (5) effect;
Described transmission gear (25) and the axial external cone plate of torus (29) are provided with edge type strainer respectively and by the edge type strainer transmission of intermeshing;
Brake gear (20) is fixedly installed on the right leg pipe (18) of chain stay, right leg pipe (18) end is provided with axle block (22), axle block (22) is open-ended and ride over bearing seat (33) cylindrical of transmission shaft (1), described axle block (22) open end seals by following fixed block (30), be provided with between following fixed block and the bearing seat (33) and adjust piece (34), adjust surface and the suitable shape of bearing seat (33) cylindrical that piece (34) contacts with bearing seat (33) cylindrical.
2. double cam self-adapting automatic gear shifting hub according to claim 1, it is characterized in that: also comprise tubular sensing frame (35), described tubular sensing frame (35) one ends and the axial external cone plate of torus (29) heavy keying fit, the other end fixedly installs annular magnetic steel (36), the axially relative Hall element (37) that fixedly installs on casing with annular magnetic steel (36).
3. double cam self-adapting automatic gear shifting hub according to claim 2, it is characterized in that: also comprise fixed link (32) and packing ring assembly, described axle block (22) is provided with fixed orifice, the fixed orifice that described fixed link (32) was fixedly installed on brake gear (20) support and passed successively packing ring assembly and axle block (22) makes between axle block (22) and the brake gear (20) captives joint, the spherical groove packing ring (32b) that described packing ring assembly comprises bulb packing ring (32a) and is mated, the bulb of described bulb packing ring (32a) presses the spherical groove of spherical groove packing ring (32b).
4. double cam self-adapting automatic gear shifting hub according to claim 3, it is characterized in that: described spherical groove packing ring (32b) is provided with annular boss with the end excircle that bulb packing ring (32a) cooperates, spherical groove packing ring (32b) extends into the fixed orifice of axle block (22), and annular boss presses axle block (22).
5. double cam self-adapting automatic gear shifting hub according to claim 4, it is characterized in that: also comprise fixed block (10), described fixed block (10) is fixedly installed on the axle block (22) by bolted connection, described fixed link (32) passes axle block (22) successively and fixed block (10) back is fixed by captive nut, and the suitable shape of described fixed block (10) end and bearing seat (33) cylindrical also presses closer bearing seat (33) cylindrical; Bolt hole on the described fixed block (10) is vertical waist shaped hole.
6. double cam self-adapting automatic gear shifting hub according to claim 5, it is characterized in that: described casing (4) comprises left box body (41) and right case (42), described engine installation is for being arranged on the motor in the left box body (41), described left box body (41) right part is provided with the tubular boss, described tubular boss is plugged on the right case (42), and the surface that the tubular boss cooperates with right case (42) is provided with o RunddichtringO (38); Described rotor by drive sleeve and the axial inner cone dish of torus gear ring (27) in the circumferencial direction heavy keying fit, the drive sleeve cylindrical cooperates with the right side and the left side of left box body (41) by the 3rd annular bearing with rolling contact (28) and second annular bearing with rolling contact (3), and described the 3rd annular bearing with rolling contact (28) seals with left box body (41) by seal ring IV (3a) by seal ring III (28a), second annular bearing with rolling contact (3); The bearing side seal of seal ring III (28a) and seal ring IV (3a) has lubricating oil.
7. double cam self-adapting automatic gear shifting hub according to claim 6, it is characterized in that: transmission shaft (1) two ends, left and right sides cylindrical cooperates with the left side and the right side of casing (4) by first annular bearing with rolling contact (2) and the 4th annular bearing with rolling contact (23) respectively, by seal ring V (39) sealing, envelope has lubricating oil to described the 4th annular bearing with rolling contact (23) in the described right case with extraneous.
8. double cam self-adapting automatic gear shifting hub according to claim 7, it is characterized in that: the support of brake gear (20) is by the 5th annular bearing with rolling contact (21) and transmission shaft (1) normal-running fit, bearing seat (33) is enclosed within the 5th annular bearing with rolling contact (21) cylindrical, described the 5th annular bearing with rolling contact (21) two ends are provided with seal ring I (21a) and seal ring II (21b) respectively, and envelope has lubricating oil between seal ring I (21a) and the seal ring II (21b).
9. double cam self-adapting automatic gear shifting hub according to claim 8 is characterized in that: described speed change spring (5) is a butterfly spring group, is arranged on the left side of the axial external cone plate of torus (29); The expansion direction of described cam path (1a) is opposite with transmission shaft (1) takeoff output hand of rotation from left to right, and the edge type strainer pressure line expansion direction of transmission gear (25) and the axial external cone plate of torus (29) is identical with transmission shaft (1) takeoff output hand of rotation from left to right; Between described speed change spring (5) and the axial external cone plate of torus (29) the 3rd surface bearing (17) is set; Cam pin (31) inserts cam path (1a) by the cam guide (31a) with its free-running fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101035079A CN101525034B (en) | 2009-03-31 | 2009-03-31 | Double cam self-adapting automatic gear shifting hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101035079A CN101525034B (en) | 2009-03-31 | 2009-03-31 | Double cam self-adapting automatic gear shifting hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101525034A CN101525034A (en) | 2009-09-09 |
| CN101525034B true CN101525034B (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101035079A Expired - Fee Related CN101525034B (en) | 2009-03-31 | 2009-03-31 | Double cam self-adapting automatic gear shifting hub |
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| CN (1) | CN101525034B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792006B (en) * | 2010-03-10 | 2013-01-23 | 西南大学 | Hub type manual-automatic integrated intelligent self-adaptive transmission sensing electrically-driven automatic transmission |
| ES2619052T3 (en) * | 2011-11-25 | 2017-06-22 | Honda Motor Co., Ltd. | Straddle electric vehicle |
| CN102529572B (en) * | 2012-01-20 | 2014-03-26 | 西南大学 | Mechanical intelligent self-adaption two-gear automatic-gear-shifting hub |
| CN102628493B (en) * | 2012-04-26 | 2015-04-29 | 向永川 | Automatic speed changer |
| CN102717705B (en) * | 2012-06-18 | 2015-07-22 | 西南大学 | Mechanical intelligent adaptive double-gear automatic speed change hub with multiple cams |
| US9950770B2 (en) * | 2016-05-19 | 2018-04-24 | GM Global Technology Operations LLC | Multispeed internally geared hub with selectable fixed gear |
| CN107128162A (en) * | 2017-06-28 | 2017-09-05 | 吉林大学 | A kind of heavy-duty vehicle Electric Motor Wheel assembly apparatus and automobile |
| CN108462271A (en) * | 2018-03-12 | 2018-08-28 | 宁勤顺 | The brushless direct current motor of included torsion slow start slow stop and its application |
| CN111055677B (en) * | 2019-12-31 | 2022-10-04 | 西南大学 | Intelligent central driving type electric drive assembly with transmission sensing function |
| CN111204407B (en) * | 2019-12-31 | 2021-06-15 | 西南大学 | Fixed shaft type large-load self-adaptive electric drive assembly adopting central drive form |
-
2009
- 2009-03-31 CN CN2009101035079A patent/CN101525034B/en not_active Expired - Fee Related
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| CN101525034A (en) | 2009-09-09 |
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Granted publication date: 20110601 |