CN102417009B - 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 that forms bicycle has: 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 form.
The body system of Electrical Bicycle is the base portion of whole car, it namely is the body of the installation of whole parts, again to determine the ride key of performance of car load, it comprises that mainly handlebar, front fork, vehicle frame three parts form, and existing design content elaborates 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 the front pipe of vehicle frame and the vehicle frame, existing 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 behind the widening frame simultaneously, and chain stay contact pin is used for installing the fixedly rotary actuator flywheel of trailing wheel left and right sides after strengthening, and the contact pin opening is selected open front or vertical openings formula, without the after-opening formula.Vehicle frame select 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 turning function, can keep riding steadily.This patent is selected coventional type shock-absorbing front fork formula or is added the compact form shock-absorbing front fork on the version, is exactly at fork leg place, the left and right sides of front fork design spring installation, can weaken human body and be jolted in ground or impact the vibrations that bring when riding mountain bike formula battery-driven car.It is the size (opening shelves with chain stay behind the vehicle frame equates) of having widened front fork shelves that this patent changes existing front fork, and the leg contact pin that has strengthened left and right sides, is used for installing 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 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 by bike human body both arms simultaneously, keep riding stable.This patent is not done any special requirement 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 still uses 15 pages～27 pages contents of document 1 to carry out.
It will be considered to the impact of car load center of gravity 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, more easily settles storage battery 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, this patent is not done any change, but according to this patent characteristics, can only select the wheel rim lock, wherein the caliper brake brake system is most widely used, and product is maximum, and brake lever and lock body are to adopt steel cable and flexible pipe to transmit braking force; During braking, realize slowing down or braking in simultaneously clamping of both sides lock body wheel rim both sides; Integral structure has reduced wheel rim axial wobble to be affected deceleration and stopping performance, keeps braking steadily.For this reason must be at the vertical 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 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 caliper brake.
Existing wheel part is comprised of car rim, spoke, the antero posterior axis of tire, front and back wheel, and this patent wheel partly adopts this structure, but front and back wheel is designed to identical structure and size, with identical after existing rear wheel increases the left side flywheel again.
Tire still adopts existing type, consider the 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, as described in 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.
Axle is support and the centre of gration of front and rear wheel.The axle body of axle is formed by left and right floral disc and three interference fit of central siphon; Bearing by axle rod and axle body combination, forms the complete 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, by the nuts and washers at axle rod two ends, 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 axle hollow, doubles as the part into hydraulic circuit.Existing flywheel rear shaft is that the face of cylinder with right floral disc position makes right flywheel fuse, installs very heavyly in the above, and very heavy spring forms the indexing mechanism of single-direction transmission with the overcoat that is provided with interior ratchet.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.All be driving wheel according to front and back wheel of the present invention, the left and right sides full symmetric 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 such as 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, such as the 67-72 page or leaf of document 1.
The design of power hydraulic system is list of references 2 " hydrostatic drive design guidance ", and existing power hydraulic system is comprised of energy element, power element, control element, auxiliary element and working medium.The present invention tramples movement characteristic according to the people, does not adopt the various Hydraulic Pumps of present use as energy element, but with reference to the structure design of vane type rotary actuator the arranged on left and right sides vane type swing Hydraulic Pump.And power element be in the design of the left and right sides symmetry of front and back wheel two groups four piston type rotary actuator flywheels, their calculating parameter and Specification are seen 158-161 page or leaf and the 229-230 page or leaf of document 2.The 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 pressure survey two class auxiliary elements.
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 port size decision of the Hydraulic Elements that connected by its more than the 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.Flare fitting and hose assembly simple in structure are used in suggestion.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 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 pressure sensor.
The function of considering during hydraulic medium selected mainly be carry can and 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 selection of existing cranked technical requirements and 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 to 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 form, such as 82 pages of document.Or the face of cylinder makes fuse outside the axletree floral disc, establishes seal ring at this fuse; 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, such as 56 pages of document 1.
The mechanism that produces intermitten is mainly by the ratchet of overcoat inner circle, and very heavy, the very heavy spring that is installed on the fuse forms.
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 overcoat inner circle promotes very heavy (together with fuse) simultaneously clickwise, and then promotes the trailing wheel rotation, and front-wheel is flower wheel, and car load is advanced.When overcoat stops operating and car load when advancing by inertia, fuse and very heavyly still clockwise rotating, but this moment under overcoat ratchet ramp effect with in the very heavy very heavy groove that is pressed into fuse, very heavy ineffective.
Technical requirements is: flywheel strength is the assurance of flywheel transmitting torque, and flywheel applies the power of 4900N along driving direction, and flywheel should be without 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 exactly the size of pedal force when riding by assistant sensor, then signal (or after amplifying) is delivered to the A/D mouth of controller MCU, again by MCU control motor current, and then obtain the electrical motor output torque that is directly proportional with the foot-operated torque of people.The drive ratio of electric power and manpower is called assist rate, and it is 1: 1 or 2: 1 functions that existing controller provides assist rate.Use the synthetic torque of electric power and manpower, no matter still climb against the wind, 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 discussion, 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 formed 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 with it the electric weight of certain relation if conversion element energy direct feeling is measured, and sensor is just without end instr at this moment.
The sensor that is applied to now electric assisted bicycle can only use torque sensor bar none, and it is the mechanical twisting stress of directly measuring axle drive shaft.This class 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 such as the 41-67 page or leaf in the document 3.
Running part all is to utilize the chain transmission 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, turn 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 be directly used in foot-operated drive system, because the energy source of existing power hydraulic system all is electrical motor or combustion engine, it 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: can obtain identical continual mileage in the situation that accumulator capacity reduces half, thereby storage battery volume or quality can be reduced one times, be that battery-driven car is lighter and handier, safer, more adapt to new national standard to the new demand of complete vehicle quality; It is very most of that while storage battery cost accounts for integral vehicle cost, 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 axle moment of torsion, the sensors with auxiliary electrode were complex structure, 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 consists of 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 alternately characteristics of 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 that left and right two vane types that are fixed on vehicle frame center tap both sides swing Hydraulic Pump, and its input shaft Center has square toes or foil in order to be connected with the left and right sides crank, 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 arranged on left and right sides symmetry of front and rear wheel two groups four piston type rotary actuator flywheels, the overcoat cylindrical of flywheel is designed to gear, by tooth bar and the outer Knucle-gear engagement of Case of fly-wheel, reciprocating motion of the pistons is changed into the gyroscopic movement of Case of fly-wheel, 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 fully opposite.So just at the design oil circuit of bicycle arranged on left and right sides symmetry, with flexible pipe homonymy crank vane type is swung former and later two piston type rotary actuator flywheels of Hydraulic Pump and homonymy with the power oil main line and directly be connected; And the hollow shaft rod by 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 and pedal, drive crank and blade, make the interior liquid of top oil cylinder of this lateral lobe chip swing Hydraulic Pump compressed, be about to pedal force and become the fluid pressure energy, again through threeway with hydraulic oil the power master hydraulic fluid port that is delivered to the oil cylinder with gear racks 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 by both sides respectively, pushing piston travels forward, utilize the outer Knucle-gear engagement of tooth bar and Case of fly-wheel, 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 the promotion of overcoat inner circle ratchet again, rotate forward together with fuse, make the front and back wheel synchronous rotary, jointly drive car load and advance; Meanwhile, hydraulic oil is delivered to the return hydraulic fluid port of oil cylinder with gear racks front portion of the piston type rotary actuator flywheel of front axle and rear axle opposite side by the hollow shaft rod, the blade of the piston of piston type rotary actuator and vane type swing Hydraulic Pump is made returning movement before and after promoting, and this moment this side flywheel under overcoat 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, do not need to use control element and fuel tank etc. not to be suitable for the element of bicycle, hydraulic energy 100% utilizes.
The alerting ability that the present invention utilizes pipe fitting to arrange, by flexible pipe in the situation that do not affect the front-wheel steering function, transmit simultaneously the hydraulic medium that carries energy to front and rear wheel, synchronously change the pressure energy of hydraulic pressure transfer into mechanical energy at the axle place with power element again, the driven in synchronism bicycle advances before and after reaching thus, improve off-road capability, again without the sorrow of chain-taking.
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 pedal force 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 current, and then generation and 1: 1 electrical motor of pedal force output torque, merge so that foot-operated drive system and electric propulsion system are perfect, produce electric power and the synthetic torque of manpower of the assist rate 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 front fork shelves and vehicle frame.Strengthened besides the contact pin of chain stay behind the pin contact pin of front fork left and right side and the vehicle frame left and right sides, and stayed two fixed orifices in contact pin, the bolt of rear end plate on the oil cylinder with gear racks 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 three fixed orifices that are provided with corresponding setting on the oil cylinder of three bolt of rear end plates and vane type swing Hydraulic Pump in its arranged on left and right sides 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---lower adaptor place of pipe before front fork shoulder and the vehicle frame
The contact pin of Fig. 2 front fork pin
1---front fork moves back; 2---the contact pin of front fork pin and HM Hydraulic Motor fixed orifice
The contact pin of Fig. 3 vehicle frame back vent
1---rear chain stay; 2---vertical fork; 3---back vent contact pin and HM Hydraulic Motor fixed orifice
Fig. 4 vehicle frame center tap
1---lower pipe; 2---standpipe; 3---rear chain stay; 4---center tap is settled 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 Fig. 5 inner circle ratchet
1---axletree left side Case of fly-wheel; 2---axletree right side Case of fly-wheel
The oil cylinder with gear racks 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 swings Hydraulic Pump
1---power master hydraulic fluid port; 2---vane type swings the cylinder body of 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---the lobus lateralis sinister chip swings 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 oil cylinder with gear racks of front axle left hand piston formula rotary actuator flywheel;
6---the oil cylinder with gear racks 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 oil cylinder with gear racks of front axle right hand piston formula rotary actuator flywheel;
10---the oil cylinder with gear racks of rear axle right hand piston formula rotary actuator flywheel;
13---the lobus lateralis dexter chip swings 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, 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 such as 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 oil cylinder with gear racks 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 fully equal, the left and right floral disc spacing that should equal axletree is added the width of two piston type rotary actuator flywheels.Three bolts of center tap steel plate contact pin left and right sides and left and right sides piston type swing that three fixed orifices are connected on the cylinder body of Hydraulic Pump, are used for fixing the left and right sides Hydraulic Pump.
Middle left and right lateral lobe chip of the present invention swing Hydraulic Pump with the people about the energy alternately trampled of both feet change the energy element that in left side oil circuit or right side oil circuit hydraulic pressure alternately produces pressure energy into.
Power element is that the 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, and also design is identical with the right side flywheel structure, the left side flywheel of opposite direction.Be exactly with the cylinder at left floral disc and right floral disc position and all as the fuse of left flywheel and right flywheel, establish very heavy groove on the left and right floral disc face of cylinder, very heavy, very heavy spring is installed; 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 by steel ball and axle bumper (or silk shelves); Left floral disc and right floral disc are installed on the axletree (front axle and rear axle) by the bearing of axle bumper endoporus.
Because 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.Front wheel of the present invention no longer is 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 vane type of this side swings the output of Hydraulic Pump overhead power master hydraulic fluid port and carries the energy hydraulic medium when certain batter is trampled, transmit hydraulic energy to front-wheel and trailing wheel respectively by the homonymy threeway again, this side power oil main line that leads to trailing wheel is secured on the rear chain stay corresponding leg of vehicle frame with pipe clamp; And this side power oil main line that leads to front-wheel is fixed on the lower pipe of vehicle frame with pipe clamp and on the front fork corresponding leg, manage simultaneously lower adaptor place and with the consistent lubricant pipe they are connected before front fork shoulder and vehicle frame.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, be subjected to 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 arranged on left and right sides piston type rotary actuator flywheel, hydraulic energy is 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 blade that the opposite side vane type swings Hydraulic Pump 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 that vane type swings Hydraulic Pump equals the twice of the oil pocket capacity of piston type rotary actuator.
Secondary hydraulic fluid port and secondary oil pipe that the both sides vane type swings Hydraulic Pump do not participate in transformation of energy.
When stopping to scrunch, the Case of fly-wheel of all piston type rotary actuator flywheels all stops operating, under overcoat inner circle ratchet ramp effect with in the very heavy very heavy groove that is pressed into fuse, left and right sides flywheel very heavy all ineffective, bicycle relies on inertia to advance.
When the hydraulic pressure front-and-back drive bicycle is combined with electric propulsion system, the power supply subsystem and the driving motor subsystem that form the hydraulic electric morpet still use prior art, the technology of the intelligent controller of control subsystem is also very ripe, the present invention is for booster type electric bicycle core parts---sensor, provides cheapness 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 pedal force when riding (torque), through pressure---the electric signal (or behind amplifying signal) after the electric conversion is delivered to the A/D mouth of intelligent controller MCU, controlled again the electric current of electrical motor by MCU, this just obtains electric power and the synthetic torque that the manpower torque overlaps fully, does not step on empty sense.
The working pressure sensor, its technology is very ripe, and available of a great variety, it is simple in structure, and is linear good, and stable performance is reliable, and with low cost, is easy to make assembling and easy maintenance.Can popularize well the booster type electric bicycle, it can reduce the storage battery consumption, and integral vehicle cost is reduced, and alleviates simultaneously complete vehicle weight, rides safer, more can adapt to new national standard.
When both feet a little firmly just can switch to pure motoring condition simultaneously smoothly.
Claims (2)
1. power hydraulic system, this power hydraulic system is totally-enclosed hydraulic circuit, has energy element and power element; It is characterized in that: fuel tank and control piece are not set, its power oil main line is to be symmetrically arranged, with energy element---vane type swings Hydraulic Pump (1,13) power master hydraulic fluid port joins, the power oil main line leads to respectively power element---the piston type rotary actuator flywheel (5 of front axle and the same side, rear axle place by threeway, 6,9,10) power master hydraulic fluid port, so just can synchronously produce torque in front and back wheel, and then the driving car load advances, and the power oil main line at pipe lower interface place before front fork shoulder and the vehicle frame is designed to flexible pipe (4,12), to guarantee that car turns to flexibly; Meanwhile, the return hydraulic fluid port of the left and right sides, antero posterior axis place piston type rotary actuator flywheel is connected mutually by quill shaft rod (7,8), makes opposite side piston type rotary actuator flywheel and vane type swing together returning movement of Hydraulic Pump; It is alternately to trample the characteristics that energy is provided according to human body left and right sides pin that vane type swings Hydraulic Pump, the left and right sides, the place of connecing has been designed symmetrically vane type and has been swung Hydraulic Pump in vehicle frame, its pump shaft place is provided with square toes formula spline with the blade pump shaft, crank, pedal become one, crank assemblies becomes 15-30 ° of angle with vertical line, in order to raise the efficiency; The cylinder body that vane type swings Hydraulic Pump is provided with three fixed orifices, and described center tap is not arranged to 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 arranged on left and right sides; The mounting hole of two fixed piston formula rotary actuators has all been established in the contact pin of front fork pin and the contact pin of vehicle frame back vent.
2. described power hydraulic system according to claim 1, two groups are total to quadruplet piston type rotary actuator flywheel-power element about the left and right sides of front axle and back axle is designed symmetrically, the Case of fly-wheel cylindrical is designed to gear, and be meshed with the piston-rack of piston type rotary actuator, piston motor and unidirectional indexing mechanism flywheel are integrated into a grip assembly like this; The left side flywheel with the difference of right side flywheel is: overcoat inner circle ratchet opposite direction and very heavy, very heavy spring, the setting of very heavy groove, installation direction are also opposite, and the cylinder body of motor is provided with two fixed-use bolts.
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 CN102417009A (en) | 2012-04-18 |
| CN102417009B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| HK1256666A2 (en) * | 2018-09-28 | 2019-09-27 | Yuk Chun Jon Chan | A motor drive apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2588342B2 (en) * | 1992-07-22 | 1997-03-05 | 安徳 佐藤 | Bicycle hydraulic drive |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN102417009A (en) | 2012-04-18 |
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