CN102417009A - Hydraulic electric power-assisted bicycle and hydraulic front and rear driving cross-country bicycle - Google Patents
Hydraulic electric power-assisted bicycle and hydraulic front and rear driving cross-country bicycle Download PDFInfo
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Abstract
The invention relates to a hydraulic electric power-assisted bicycle and a hydraulic front and rear driving cross-country bicycle, which can be used in the fields of electric bicycles and mountain bikes. The electric power of the existing ordinary electric bicycle is irrelevant to people, the cost for a battery is high, the bicycle is heavy as a whole and is unsafe, and thus, the existing ordinary electric bicycle is difficult to meet the new national standard; and the existing power-assisted type electric bicycle is lack of a torque sensor with low price and high quality. The existing bicycle can only generate a torque by a rear wheel, a front wheel and the rear wheel basically cannot synchronously generate torques, and thus, the cross-country performance is affected. Furthermore, the utilization ratio of the hydraulic energies of the existing hydraulic drive system is low, so that the existing hydraulic drive system is unsuitable for the conversion of pedaling physical energies. According to the hydraulic electric power-assisted bicycle and the hydraulic front and rear driving cross-country bicycle, a specially-designed totally-enclosed hydraulic drive system replaces a chain drive rotating device, and a front driving wheel and a rear driving wheel can be synchronously driven at the same time while the steering performance is not affected; and furthermore, a pressure sensor with low price and high quality is applied to the power-assisted type electric bicycle by replacing the existing various torque sensors which directly detect the torques of rotating shafts. The drawing in the abstract is a hydraulic circuit diagram of a pedaling drive system.
Description
Technical field: Electrical Bicycle and mountain bike
Background technology: the prior art that this patent is used can be quoted as proof from following list of references:
1. " Electrical Bicycle practical technique " Tianjin bicycle trade experts database member of productivity promotion center writes People's Telecon Publishing House 2008.05
2. " hydrostatic drive design guidance " Zhang Liping is write Chemical Industry Press 2009.09
3. China Machine Press 2006.01 is write in the celebrating of " sensor technology and application " golden hair
The basic structure of forming bicycle has: car body part, brake portion, wheel part, foot-operated drive part.
And electric assisted bicycle has also increased electric propulsion system, and it is by storage battery and charger, electrical motor, and assistant sensor and controller are formed.
The body system of Electrical Bicycle is the base portion of whole car; It promptly is the body of the installation of whole parts; It is again the ride key of performance of decision car load; It mainly comprises handlebar, front fork, vehicle frame three parts composition, and existing design content has detailed elaboration in document 1 " Electrical Bicycle practical technique ".
Vehicle frame is that each parts of Electrical Bicycle are installed the major part that depends on; This patent still uses the version of existing rigid-frame or damping frame; And joint behind preceding pipe of vehicle frame and the vehicle frame, prior standard size and form are still used in the standpipe hole, see 11 pages～13 pages in the document 1; And this patent center tap is no longer established the transverse tube that axis is installed, and uses the fixedly steel plate contact pin of left and right sides Hydraulic Pump instead; Chain stay is opened shelves after widening vehicle frame simultaneously, and strengthens the rotary actuator flywheel that back chain stay contact pin is used for installing and fixing the trailing wheel left and right sides, and the contact pin opening is selected open front or vertical openings formula for use, without the after-opening formula.Vehicle frame select for use and 13 pages～15 pages of document 1 are seen in manufacturing, safety requirements.
Front fork partly is the car load important component part, and it supports front-wheel, has the function of turning to, and can keep riding steadily.This patent is selected coventional type shock-absorbing front fork formula for use or is added the compact form shock-absorbing front fork on the version, is exactly fork leg place design spring installation about front fork, when riding mountain bike formula battery-driven car, can weaken human body and jolted in ground or impact the vibrations that bring.It is the size (opening shelves with chain stay behind the vehicle frame equates) of having widened preceding fork shelves that this patent changes existing front fork, and the leg contact pin that has strengthened left and right sides, is used to install the left and right sides rotary actuator flywheel of front-wheel.And 33 pages～40 pages content is still adopted in the document 1 in selecting for use of shock-absorbing front fork technical requirements and capability and performance, front fork.Handlebar and front fork combine the steering hardware that becomes Electrical Bicycle, and handlebar also will support human body both arms by bike simultaneously, and it is stable to keep riding.This patent is not done any special demands or change to existing handlebar design, directly adopts 41 pages～46 pages contents in the document 1 to design.
The construction parameter of vehicle frame, front fork is selected and force analysis also is to use 15 pages～27 pages contents of document 1 to carry out.
Its influence to the car load center of gravity will be considered in the storage battery installation site, see document 1 31 pages～32 pages, the top tube place is arranged, and between down tube and the standpipe, between seat tube and the rear wheel, clothes hanger top or left and right side.And this product does not have axis, settles storage battery more easily than existing design.
The Electrical Bicycle brake system is the pith that ensures cycling safety; It has wheel rim lock, wheel hub lock, dish brake three major types, and this patent is not done any change, but according to this patent characteristics; Can only select the wheel rim lock for use; Wherein pincerlike lock brake system is used the widest, and product is maximum, and brake lever and lock body are to adopt steel cable and flexible pipe to transmit braking force; Glancing impact, realize slowing down or braking in both sides lock body clamping simultaneously wheel rim both sides; Integral structure has reduced wheel rim axial wobble to be influenced deceleration and stopping performance, keeps braking steadily.For this reason must be at upright fork of vehicle frame and fork blade weld brackets assembly, ￠ 8 bearing pins on this carriage assembly will have good cooperating with lock arm hole, and the position and the bearing pin of carriage assembly welding will have accurate squareness.99 pages and 104-112 page or leaf of document 1 seen in the design of concrete pincerlike lock.
Existing wheel part is made up of car rim, spoke, the antero posterior axis of tire, front and back wheel, and this patent wheel partly prolongs use this structure, but front and back wheel is designed to identical structure and size, and is afterwards identical with flywheel on the left of existing rear wheel increases again.
Tire still adopts existing type, consider interface type identical with wheel rim and size, and the specification kind of wheel rim is a lot, all can be used for this patent, and is of the 47-52 page or leaf of document 1.The rim types of front and back wheel is identical, and the bar hole count is also identical.
Forward and backward axle is the support and the centre of gration of front and rear wheel.The axle body of forward and backward axle is formed by left and right floral disc and three interference fit of central siphon; Bearing through axle rod and axle body combination, forms the complete forward and backward axle of a cover by the axle bowl, steel ball (or ball-collecting rack), the axle bumper that are assemblied in the left and right floral disc.Simultaneously, through the nuts and washers at axle rod two ends, forward and backward axle installed respectively be fastened on behind front fork, the vehicle frame on the chain stay.The present invention is designed to the axle rod of forward and backward axle hollow, and double as is the part of hydraulic circuit.Existing flywheel rear axle is that the face of cylinder with right floral disc position makes right flywheel fuse, install in the above very heavy, very heavy spring, be provided with in the overcoat of ratchet form the indexing mechanism of unidirectional transmission.56-57 page or leaf and the 3rd piece of electrical motor 136-195 page or leaf of document 1 seen in the design of wheel hub electric motor.
Spoke is the strength member that connects front and back wheel rim and antero posterior axis.According to front and back wheel of the present invention all is driving wheel, and left and right sides is symmetry fully, is identical characteristics.Spoke quantity, wheel weaving method all are the spoke same design with reference to the right floral disc of the rear axle band flywheel of existing bicycle when the tensile strength of spoke, length, thickness and wheel rim braided design.59-66 page or leaf like document.
Foot-operated drive system is that bicycle can be realized the key device of advancing forward, is innovation of the present invention place.Existing bicycle pedals drive system comprise left and right sides pedal, left and right sides crank, sprocket wheel, chain,, the right side rear flywheel forms.The present invention abandons existing chain gearing fully, uses hydrostatic drive instead.Sprocket wheel and chain no longer are set.Keep pedal, crank, and transform and set up flywheel.
Pedal is the primary link of bicycle drive system, and the present invention has inherited the various designs of existing pedal fully, like the 67-72 page or leaf of document 1.
The design of power hydraulic system is list of references 2 " a hydrostatic drive design guidance ", and existing power hydraulic system is made up of energy element, power element, control element, auxiliary element and working medium.The present invention tramples movement characteristic according to the people, and the various Hydraulic Pumps that do not adopt present use are as energy element, but with reference to the structure design of vane type rotary actuator and arranged on left and right sides vane type swing Hydraulic Pump.And power element be in the design of the left and right sides of front and back wheel symmetry two groups four piston type rotary actuator flywheels, their calculating parameter and Specification are seen the 158-161 page or leaf and the 229-230 page or leaf of document 2.Auxiliary elements such as the control element that totally-enclosed hydraulic circuit of the present invention need not be complicated and huge fuel tank, energy storage only keep and use pipe fitting and two types of auxiliary elements of pressure survey.
Oil pipe, adaptor union, pipe clamp general designation pipe fitting.Oil pipe has hard tube and flexible pipe (India rubber tube or nylon tube).The many port size decisions by its bonded assembly Hydraulic Elements of oil pipe specification, GB/T2351-1993 stipulates with hard tube external diameter and inner diameter hydraulic efficiency pressure system.Adaptor union is used for pipe and Hydraulic Elements, being connected between pipe and the T-pipe joint, pipe and pipe.Suggestion simple flare fitting of utilization structure and hose assembly.The pipe clamp function is to support and the fixed hydraulic pipeline.Pipe fitting is selected and is arranged 30 pages and 100-108 page or leaf seeing document 2; Working standard is seen the 194-195 page or leaf of document 2; The structure type of adaptor union is seen 243 pages of document 2.The axle rod of antero posterior axis of the present invention is designed to hollow, is used for the return hydraulic fluid port of UNICOM's and arranged on left and right sides piston type rotary actuator flywheel.So just formed unique complete closed hydraulic efficiency pressure system.The pressure measuring element that the present invention uses is a pressure sensor.
The function of considering during hydraulic medium selected mainly is that carry can be with lubricated, cool off inessential, the concrete 30-31 page or leaf of list of references 2.
The crank that the present invention uses all is identical with the technical requirements of existing crank and the selection of length.But do not use one crank and right side sprocket wheel, can use square hole crank or spline crank, specifically see 17 pages and 78-79 page or leaf of document 1.
Flywheel be bicycle in riding, the manpower pedaling is converted into the important component part of bicycle advancement mechanism.In order to reduce cyclist's physical consumption and the left and right sides of the present invention rotary actuator alternately exert oneself work done and return, bicycle freewheel all is designed to unidirectional indexing mechanism.Flywheel is by overcoat; Flat shelves; Fuse; Very heavy spring; Very heavy; The fuse packing ring; Seven parts of silk shelves are formed, like 82 pages of document.Or the face of cylinder makes fuse outside the axletree floral disc, on this fuse, establishes seal ring; Steel ball (or ball-collecting rack); Very heavy, very heavy spring; Axle bumper; Bearing; Overcoat; Dust ring and axletree are designed to an integral body, like 56 pages of document 1.
The mechanism that produces intermitten mainly is made up of the ratchet of circle and very heavy, the very heavy spring that is installed on the fuse in the overcoat.
Existing bicycle only is provided with the right side flywheel on the trailing wheel right side.When driving right side Case of fly-wheel clickwise, the ratchet of the interior circle of overcoat promotes very heavy (together with fuse) clickwise simultaneously, and then promotes the trailing wheel rotation, and front-wheel is a flower wheel, and car load is advanced.When overcoat stops operating and car load when advancing by inertia, fuse and very heavy is still clockwise rotating, but under this moment its external sleeve ratchet ramp effect with in the very heavy very heavy groove that is pressed into fuse, very heavy ineffective.
Technical requirements is: flywheel intensity is the assurance of flywheel transfer torque, and flywheel applies the power of 4900N along driving direction, and flywheel should not have damage.The flywheel ratchet should with the tooth bar correct engagement.83 pages of document 1 are seen in the maintaining of flywheel.
The torque power-assisted of electric assisted bicycle is ridden, exactly the optimal design electric propulsion system that matches on the foot-operated drive system basis that bicycle has had.Detect the size of the power of riding when riding exactly through assistant sensor, then signal (or amplifying the back) is delivered to the A/D mouth of controller MCU,, and then obtain riding the electrical motor output torque that torque is directly proportional with the people again by MCU control motor electric current.Electric power is called the power-assisted ratio with the drive ratio of manpower, and it is 1: 1 or 2: 1 functions that existing controller provides the power-assisted ratio.Electrification and manpower synthesize torque, no matter still climb against the wind, and the bicyclist can easily ride.Specifically see 172-174 page or leaf and 246-247 page or leaf in the document 1 " Electrical Bicycle practical technique ".
Intelligent controller sees that the 4th piece 198 pages-260 pages of document 1 have argumentation, can directly use.
Sensor is the core parts of booster type electric bicycle.See " sensor technology and the application " of document 3, sensor is device or the device that can experience specified measuring range and convert usable output signal according to certain rule to.Usually form by end instr and conversion element; If what end instr was directly exported is electric weight, it is just held concurrently simultaneously and is conversion element; Output becomes the electric weight of certain relation with it if conversion element can directly experience measured, and this moment, sensor did not just have end instr.
The sensor that is applied to electric assisted bicycle now can only use torque sensor bar none, and it is a mechanical tersional stress of directly measuring axle drive shaft.This type sensor manufacturing cost and maintenance cost are very high.
The present invention utilizes the hydrostatic drive characteristics, and pressure sensor is used for the booster type electric bicycle.Optional of a great variety, the good linearity of pressure sensor, technology maturation is like the 41-67 page or leaf in the document 3.
Running part all is to utilize chain-driving in the foot-operated drive system of existing bicycle; It can only be delivered to rear axle right side Case of fly-wheel cylindrical sprocket by sprocket wheel through chain with double-legged stampede power and drive car load; Because front fork and front-wheel will turn to flexibly, therefore can't synchronously this power be delivered to front-wheel.Therefore when cross-country, particularly soft on ground, change the sharp turn, when front-wheel ran into obstacle, carrying capacity greatly reduced, and chain-taking very easily.
And existing various hydraulic efficiency pressure system also can't directly be used for foot-operated drive system, because the energy source of existing power hydraulic system all is electrical motor or combustion engine, all is the high-speed and continuous rotation; So existing energy element only adapts to these characteristics in the system; This energy element can not be synchronized with the movement with power element simultaneously, and the energy Occupation coefficient is low, therefore complicated control element and huge fuel tank must be arranged; Energy storage cooperates with it, hydraulic coupling, flow and the direction of control from the pump to the actr.Therefore to carry out from new design existing power hydraulic system.
Compare with pure Electrical Bicycle; Booster type electric bicycle advantage: reducing under the half the situation to obtain identical continual mileage at accumulator capacity, thereby can storage battery volume or quality be reduced one times, is that battery-driven car is lighter and handier; Safer, more adapt to the new demand of new national standard to complete vehicle quality; The storage battery cost accounts for very major part of integral vehicle cost simultaneously, therefore reduces integral vehicle cost.And the booster type electric bicycle that will realize its moment-assistant function fails to popularize and major cause is the torque sensor that existing driving system can only be used direct measurement axis moment of torsion; This type of sensor construction is complicated; Assembling and rare earth material difficult in maintenance or that use is expensive; The preparation difficulty, complex process, manufacturing cost is high.But sensor is the core that constitutes the booster type electric bicycle.
Summary of the invention:
Innovative point of the present invention be the hydraulic transmission mode with particular design be applied to the foot-operated drive system of bicycle and with cheap and good-quality sensor application in the booster type electric bicycle.
The present invention utilizes people's pin to trample motion to be the characteristics of the alternately upper and lower crank motion work done of left and right pin, to have designed the totally-enclosed hydraulic efficiency pressure system of left-right symmetric.Energy element is left and right two vane types swing Hydraulic Pump that is fixed on vehicle frame center tap both sides, its input shaft center be designed with square toes or foil in case with the left and right sides crank connecting link, thereby blade and pump shaft, crank, pedal are become one.During the pedal most significant bit or during lowest order, crank and gravity vertical angle are 15.～30., trample efficient with raising.And power element be in the design of the and arranged on left and right sides of front and rear wheel symmetry two groups four piston type rotary actuator flywheels; Be designed to gear to the overcoat cylindrical of flywheel; Through tooth bar and Case of fly-wheel cylindrical gear mesh; Change reciprocating motion of the pistons the gyroscopic movement of Case of fly-wheel into, piston type rotary actuator and homonymy flywheel are become one.When the present invention has kept existing right side flywheel, designed the left side flywheel with reference to right flywheel structure, two kinds flywheel structure is identical but their ratchet directions and very heavy installation direction are opposite fully.So just, with flexible pipe former and later two piston type rotary actuator flywheels of the swing of homonymy crank vane type Hydraulic Pump and homonymy directly are connected with the power oil main line at the design oil circuit of bicycle and arranged on left and right sides symmetry; And the hollow shaft rod through antero posterior axis is connected the return hydraulic fluid port of both sides piston type rotary actuator flywheel again, forms complete totally-enclosed hydraulic circuit.
The function of this totally-enclosed hydraulic circuit is; When scrunching a certain batter when pedaling, drive crank and blade, make that liquid is compressed in the top oil cylinder of this lateral lobe chip swing Hydraulic Pump; Be about to foot-operated power and become the fluid pressure ability; Again through threeway with hydraulic oil the power master hydraulic fluid port that is delivered to the tooth bar oil cylinder rear portion of front axle and one or two homonymy piston type of rear axle place the same side power element rotary actuator flywheel of power oil main line and the consistent lubricant pipe through both sides respectively, promote piston advances forward, utilize tooth bar and Case of fly-wheel cylindrical gear mesh; The piston linear crank motion is changed into rotatablely move (left side conter clockwise, the right side cw) of Case of fly-wheel.Very heavy by circle ratchet promotion in the overcoat again, rotate forward together with fuse, front and back wheel is rotated synchronously, the driven in common car load advances; Meanwhile; Hydraulic oil is delivered to the anterior return hydraulic fluid port of tooth bar oil cylinder of the piston type rotary actuator flywheel of front axle and rear axle opposite side through the hollow shaft rod; The piston of piston type rotary actuator and vane type swing hydraulic pressure pump blade is made returning movement before and after promoting; And under this moment this side flywheel its external sleeve ratchet ramp effect with in the very heavy very heavy groove that is pressed into fuse, very heavy ineffective.
Swing Hydraulic Pump directly promotion and control rotary actuator like this, need not use control element and fuel tank etc. not to be suitable for the element of bicycle, hydraulic pressure can 100% utilization.
The alerting ability that the present invention utilizes pipe fitting to arrange; Through flexible pipe under the situation that does not influence the front-wheel steering function; To front and rear wheel transmit simultaneously carry can a hydraulic medium, synchronously can change the pressure of hydraulic pressure transfer into mechanical energy with power element again at forward and backward axle place, the driven in synchronism bicycle advances before and after reaching thus; Improve off-road capability, do not have the sorrow of chain-taking again.
The present invention utilize carry in the power hydraulic system conversion process of energy of foot-operated drive system can medium the characteristics that are directly proportional with people's foot-operated power of pressure with pressure sensor as assistant sensor, and the measurement of pressure is more than the method for direct measurement mechanical axle moment of torsion simply and actv. is many.Pressure sensor is optional various in style, technology maturation, and good linearity, reliability is high, and manufacturing and maintenance are easy, and price is low.The electric signal that pressure sensor records is delivered to intelligent controller MCU; Again by MCU control motor electric current; And then generation and 1: 1 electrical motor output torque of foot-operated power; Make foot-operated drive system and electric propulsion system perfection merge, produce the electric power and the synthetic torque of manpower of the power-assisted ratio that meets the requirements.
The present invention has done the comformability change to existing bicycle body.Chain stay is opened shelves after at first having widened preceding fork shelves and vehicle frame.Strengthened the contact pin of chain stay behind pin contact pin and the vehicle frame left and right sides of front fork left and right side besides, and in contact pin, stayed two fixed orifices, the bolt of rear end plate on the tooth bar oil cylinder of it and piston type rotary actuator flywheel is fixed.
The vehicle frame center tap also no longer includes horizontal steel pipe, but replaces with steel plate, and is provided with three bolt of rear end plates and vane type in its and arranged on left and right sides and swings three fixed orifices of corresponding setting on the oil cylinder of Hydraulic Pump and match fixing.Also can between the pump of the left and right sides, settle storage battery.
Description of drawings: the accompanying drawing left side is the place ahead of Electrical Bicycle
Fig. 1 Electrical Bicycle car body
1---front fork pin joint; 2---the contact pin of vehicle frame back vent; 3---the vehicle frame center tap; 4---front fork shoulder and preceding lower adaptor place of managing of vehicle frame
The contact pin of Fig. 2 front fork pin
1---front fork moves back; 2---contact pin of front fork pin and HM Hydraulic Motor fixed orifice
The contact pin of Fig. 3 vehicle frame back vent
1---the back chain stay; 2---upright fork; 3---back vent contact pin and HM Hydraulic Motor fixed orifice
Fig. 4 vehicle frame center tap
1---manage down; 2---standpipe; 3---the back chain stay; 4---center tap is settled the steel plate contact pin and the bolt of rear end plate of Hydraulic Pump
The Case of fly-wheel of the outer Knucle-gear of circle ratchet in Fig. 5
1---axletree left side Case of fly-wheel; 2---axletree right side Case of fly-wheel
The tooth bar oil cylinder of Fig. 6 piston type rotary actuator flywheel
1---power master hydraulic fluid port; 2---cylinder body; 3---the return hydraulic fluid port that communicates with the hollow shaft rod; 4---fix bolt with front fork contact pin or the contact pin of vehicle frame back vent; 5---piston, piston rod, tooth bar integral component
Fig. 7 vane type swing Hydraulic Pump
1---power master hydraulic fluid port; 2---the cylinder body of vane type swing Hydraulic Pump; 3---secondary hydraulic fluid port; 4---fix mounting hole with center tap contact pin; 5---blade, pump shaft, crank, pedal integral component
The hydraulic circuit diagram of the foot-operated drive system of Fig. 8
1---lobus lateralis sinister chip swing Hydraulic Pump;
2,11---left and right side power oil main line;
3---the pressure sensor in the oil circuit;
4,12---left and right side consistent lubricant pipe
5---the tooth bar oil cylinder of front axle left hand piston formula rotary actuator flywheel;
6---the tooth bar oil cylinder of rear axle left hand piston formula rotary actuator flywheel;
7---the quill shaft rod oil pipe of front axle;
8---the quill shaft rod oil pipe of rear axle;
9---the tooth bar oil cylinder of front axle right hand piston formula rotary actuator flywheel;
10---the tooth bar oil cylinder of rear axle right hand piston formula rotary actuator flywheel;
13---lobus lateralis dexter chip swing Hydraulic Pump;
14---secondary oil pipe;
The specific embodiment:
Product of the present invention should adopt shock-absorbing front fork, and vehicle frame can use existing various forms structure.
Because brake system can only be selected the wheel rim lock for use, therefore to found weld brackets assembly on fork and the fork blade at vehicle frame, ￠ 8 bearing pins on this carriage assembly will have well supporting with lock arm hole.
The present invention has made adaptive change to existing car body, and like Fig. 2, Fig. 3 has increased the contact pin of front fork pin and the contact pin of vehicle frame back vent and designed the bolt that two holes are used on the tooth bar oil cylinder with piston type rotary actuator flywheel and fixed.Front fork pin and vehicle frame back vent pin open that grade size is all widened and equal fully, the left and right floral disc spacing that should equal axletree is added the width of two piston type rotary actuator flywheels.Three fixed orifices are connected on the cylinder body of three bolts of center tap steel plate contact pin left and right sides and left and right sides piston type swing Hydraulic Pump, are used for fixing the left and right sides Hydraulic Pump.
Among the present invention left and right side vane type swing Hydraulic Pump with the people about the energy alternately trampled of both feet change in left side oil circuit or right side oil circuit hydraulic pressure alternately produce pressure can energy element.
Power element is that the and arranged on left and right sides at antero posterior axis has designed two groups four piston type rotary actuator flywheels symmetrically, utilizes the outer Knucle-gear of tooth bar and Case of fly-wheel to be meshed, and reciprocating motion of the pistons is changed into the gyroscopic movement of Case of fly-wheel.
The present invention keeps existing right side flywheel, also design and identical, the in the opposite direction left side flywheel of right side flywheel structure.Be exactly with the cylinder at left floral disc and right floral disc position and, on the left and right floral disc face of cylinder, establish very heavy groove, very heavy, very heavy spring is installed all as the fuse of left flywheel and right flywheel; And left side and right side Case of fly-wheel are installed in respectively on the face of cylinder fuse of left floral disc and right floral disc through steel ball and axle bumper (or silk shelves); Left side floral disc and right floral disc pass through the bearing installation of axle bumper endoporus on axletree (front axle and rear axle).
Because of axletree left and right sides of the present invention all is designed with the HM Hydraulic Motor flywheel, so the spoke on wheel rim cylindrical void and the left and right floral disc is left-right symmetric design, and their thicknesses, length, quantity, force analysis are all identical with the design of existing rear axle right side floral disc.Bicycle front-wheel of the present invention no longer is a flower wheel simultaneously, but identical with trailing wheel, and front-wheel is also born and transmitted left side or the effect of right hydraulic motor flywheel torque, so spoke intensity, size and the weaving method of front-wheel and trailing wheel are all identical.
Oil circuit of the present invention is to be symmetrically arranged; The ability hydraulic medium is carried in the top power master hydraulic fluid port output of the vane type of this side swing Hydraulic Pump when certain batter is trampled; Transmit hydraulic energy to front-wheel and trailing wheel respectively through the homonymy threeway again, this side power oil main line that leads to trailing wheel is secured on the back chain stay corresponding leg of vehicle frame with pipe clamp; And this side power oil main line that leads to front-wheel be fixed on pipe clamp on the following pipe of vehicle frame with the front fork corresponding leg on, pipe lower adaptor place is connected them with the consistent lubricant pipe again before front fork shoulder and vehicle frame simultaneously.Like this power master hydraulic fluid port on two of front and back wheel the same side piston type rotary actuator flywheels just therewith side power oil main line communicate, receive the hydraulic energy effect, front and back wheel obtains flywheel torque synchronously, drives bicycle and advances.
Meanwhile antero posterior axis quill shaft rod connects the return hydraulic fluid port of and arranged on left and right sides piston type rotary actuator flywheel; Hydraulic pressure can be transferred to the opposite side oil circuit; The piston that orders about opposite side antero posterior axis place piston type rotary actuator flywheel is returning movement backward; And converge in the opposite side threeway and to drive opposite side vane type swing hydraulic pressure pump blade and make returning movement downwards (this moment, this side flywheel jack was ineffective; And the pedal returning movement that makes progress) during design, the oil pocket capacity of vane type swing Hydraulic Pump equals the twice of the oil pocket capacity of piston type rotary actuator.
The secondary hydraulic fluid port and the secondary oil pipe of both sides vane type swing Hydraulic Pump are not participated in transformation of energy.
When stopping to scrunch, the Case of fly-wheel of all piston type rotary actuator flywheels all stops operating, will very heavyly be pressed in the very heavy groove of fuse under the circle ratchet ramp effect in its external sleeve, and left and right sides flywheel very heavy all ineffective, bicycle dependence inertia advances.
When driving bicycle in hydraulic pressure front and back is combined with electric propulsion system; Power supply subsystem and the driving motor subsystem of forming the hydraulic electric morpet still use prior art; The technology of the intelligent controller of RACS is also very ripe; The present invention is for booster type electric bicycle core parts---sensor, cheapness is provided and the outstanding solution of performance.
The present invention does not adopt the various torque sensors of existing direct measurement rotor axis mechanical tersional stress, but utilizes in the hydrostatic drive in the conversion process of energy, carry in the oil pipe can medium pressure be directly proportional with the size of pedal power (torque).Pressure sensor respectively is set on the left and right sides oil pipe; To detect the size of foot-operated power (torque) when riding; Through pressure---the electric signal (or behind amplifying signal) after the electric conversion is delivered to the A/D mouth of intelligent controller MCU; By the electric current at MCU control motor, this just obtains electric power and the synthetic torque that the manpower torque overlaps fully again, does not step on empty sense.
Working pressure sensor, its technology are very ripe, and available of a great variety, it is simple in structure, and be linear good, and stable performance is reliable, and with low cost, is easy to make assembling and easy maintenance.Can popularize the booster type electric bicycle well, it can reduce the storage battery consumption, and integral vehicle cost is reduced, and alleviates complete vehicle weight simultaneously, and it is safer to ride, and more can adapt to new national standard.
When both feet a little firmly just can switch to pure motoring condition simultaneously smoothly.
Claims (5)
1. the energy element of design-calculated power hydraulic system of the present invention is alternately to trample the characteristics that energy is provided according to human body left and right sides pin; Designed vane type swing Hydraulic Pump specially symmetrically in the center tap left and right sides; Its pump shaft place is provided with square toes formula spline with blade; Pump shaft crank, pedal become one, and crank assemblies becomes 15 °～30 ° angles with gravity vertical, raise the efficiency; Oil cylinder is provided with three fixed orifices.
2. and as the power element of power hydraulic system is at the left and right two groups of quadruplet piston type rotary actuator flywheels altogether of the design of the left and right sides of front axle and back axle also symmetry; It is designed to gear with the Case of fly-wheel cylindrical and is meshed with the piston-rack of piston type rotary actuator, and piston motor and unidirectional transmission indexing mechanism flywheel are integrated into a grip assembly like this; The difference of left side flywheel and right side flywheel is: the circle ratchet is in the opposite direction and very heavy in the overcoat, very heavy spring, and the setting of very heavy groove, installation direction are also opposite, and the motor oil cylinder body is provided with 2 fixed-use bolts.
3. power hydraulic system is the totally enclosed hydraulic circuit, control element that need not be complicated, fuel tank that also need not be huge; Its power oil main line is to be symmetrically arranged; The power master hydraulic fluid port that leads to the piston type rotary actuator flywheel of front axle and the same side, rear axle place again by the threeway of joining with vane type swing Hydraulic Pump power master hydraulic fluid port respectively; So just in the synchronous generation torque of front and back wheel; And then drive car load and advance, and the power of pipe lower adaptor place is responsible for oil and is designed to flexible pipe before front fork shoulder and vehicle frame, can guarantee to turn to flexibly; The return hydraulic fluid port of meanwhile forward and backward axle place left and right sides piston type rotary actuator flywheel is connected through the hollow shaft rod each other, makes opposite side piston type rotary actuator flywheel and vane type swing Hydraulic Pump make returning movement together.
4. the core parts that constitute the booster type electric bicycle are assistant sensors; The present invention utilizes the phenomenon that oil pressure is directly proportional with foot-operated power in the oil pipe in the power hydraulic system transformation of energy link, and adopts pressure sensor is an assistant sensor, and simple and effective many more than the method that directly detects mechanical tersional stress to pressure detection; Technology is also more ripe; The pressure sensor good linearity, stable and reliable for performance, price is low.
5. this patent has been made adaptability design to car body, and center tap is not provided with steel pipe, but is designed to the fixedly steel plate of left and right side vane type swing Hydraulic Pump, respectively is provided with three bolt of rear end plates in its and arranged on left and right sides; Contact pin of front fork pin and the contact pin of vehicle frame back vent also increase, and have all established the mounting hole of two fixed piston formula rotary actuators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110286789 CN102417009B (en) | 2011-09-26 | 2011-09-26 | Hydraulic electric power-assisted bicycle and hydraulic front and rear driving cross-country bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110286789 CN102417009B (en) | 2011-09-26 | 2011-09-26 | Hydraulic electric power-assisted bicycle and hydraulic front and rear driving cross-country bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102417009A true CN102417009A (en) | 2012-04-18 |
| CN102417009B CN102417009B (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110286789 Expired - Fee Related CN102417009B (en) | 2011-09-26 | 2011-09-26 | Hydraulic electric power-assisted bicycle and hydraulic front and rear driving cross-country bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102417009B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176666A1 (en) * | 2017-03-30 | 2018-10-04 | 青岛海尔洗衣机有限公司 | Leveling apparatus, laundry machine having same and control method thereof |
| WO2020079498A1 (en) * | 2018-09-28 | 2020-04-23 | 陈昱骏 | Motor drive apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5387000A (en) * | 1992-07-22 | 1995-02-07 | Sato; Yasunori | Hydraulic drive system for bicycles and the like |
| US5423560A (en) * | 1994-03-17 | 1995-06-13 | Warrick; John J. | Variable speed hydraulic drive, for single or multi-wheel drive bicycles and the like |
| CN2408041Y (en) * | 2000-02-29 | 2000-11-29 | 王坚 | Full hydraulic man power bicycle |
| CN1319528A (en) * | 2001-02-28 | 2001-10-31 | 胡佃吉 | Bidirectional pump hydraulic gearing bicycle |
-
2011
- 2011-09-26 CN CN 201110286789 patent/CN102417009B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5387000A (en) * | 1992-07-22 | 1995-02-07 | Sato; Yasunori | Hydraulic drive system for bicycles and the like |
| US5423560A (en) * | 1994-03-17 | 1995-06-13 | Warrick; John J. | Variable speed hydraulic drive, for single or multi-wheel drive bicycles and the like |
| CN2408041Y (en) * | 2000-02-29 | 2000-11-29 | 王坚 | Full hydraulic man power bicycle |
| CN1319528A (en) * | 2001-02-28 | 2001-10-31 | 胡佃吉 | Bidirectional pump hydraulic gearing bicycle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176666A1 (en) * | 2017-03-30 | 2018-10-04 | 青岛海尔洗衣机有限公司 | Leveling apparatus, laundry machine having same and control method thereof |
| CN108660680A (en) * | 2017-03-30 | 2018-10-16 | 青岛海尔洗衣机有限公司 | A kind of levelling device, washing machine and its control method with the levelling device |
| CN108660680B (en) * | 2017-03-30 | 2020-10-16 | 青岛海尔洗衣机有限公司 | Leveling device, washing machine with leveling device and control method of washing machine |
| US11124913B2 (en) | 2017-03-30 | 2021-09-21 | Qingdao Haier Washing Machine Co., Ltd. | Leveling device, washing machine with the leveling device, and controlling method thereof |
| WO2020079498A1 (en) * | 2018-09-28 | 2020-04-23 | 陈昱骏 | Motor drive apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102417009B (en) | 2013-10-16 |
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