CN101041361A - Hand-held automotive monocycle - Google Patents

Abstract

The invention discloses a walking maneuvering irish buggy driven by gas engine, comprising frame chassis (5), engine (3), transmission shaft (6), throttle control handle (13), wheel (11), braking handle (14), hydraulic clutch gear gearbox (9) and control digging machine (12). When the buggy is pushed two hands grasp handles tightly, two foots and wheel (11) forms three-point support. Hands and foots can not be loosened to do other things and only forefinger and thumb are used to control hands. For adapting the characteristic, on two pairs of gears with different gear number in gearbox hydraulic friction clutch plate are set respectively to constitute fast-slow two-speed hydraulic clutch. The digging machine (12) is moved by forefinger to drive the rocker of hydraulic rotary valve (10) control close and open of clutch so that variable-speed driving of buggy can be realized.

Description

Hand-held automotive monocycle

Affiliated field

The present invention relates to a kind of with ICE-powered, the hand-held automotive monocycle that can on country road, travel.

No matter how flourishing the traffic of country is, highway can only realize that all the village village is logical, can not accomplish that the every household is logical.In the numerous transportation vehicle of China, the number wheelbarrow is the most original, the most ancient, but it can transport the agricultural byproducts that peasant household produced of scattered settlement come from country lane, also can be transported to man of peasant household to material used for agriculture such as transporting to the other chemical fertilizer of highway, plastic sheeting for farm use, rural area building materials.This shows that wheelbarrow remains a kind of suitable vehicle.

The wheelbarrow in ancient times is made with timber, wood wheel, wooden vehicle frame, when travelling " cluck,coo " cry.So the Sichuan people claims that wheelbarrow is " a cock car ".The wheelbarrow that uses all is to use the steel manufacturing now, and wheel adopts the inflated rubber tire, and ball bearing of main shaft is housed on the axletree, boosts comparatively laborsaving.Wheelbarrow can pivot stud, and it can both travel the walking path of every people, as runs into little ditch, just as long as the springboard in shop can pass through, with carry on the shoulder, the people lifts and compares, and wants much laborsaving relatively.Though wheelbarrow has many advantages, it is rickshaw after all, is restricted at aspects such as load carrying ability, manpower persistence, and its efficient can not improve again.Therefore, installing combustion engine additional on wheelbarrow, make it to become hand-held automotive monocycle, is a feasible research topic.

Through the Searches of Patent Literature, do not find wheelbarrow and add powerdriven relevant document record, do not seen similar products like on the market yet and can use for reference, only consult the prior art on the technology books such as " utility machine design manuals ", reconfigure, make it to become a kind of new model of practicality.

Summary of the invention

The purpose of this invention is to provide a kind of with the transport capacity of ICE-powered hand-held automotive monocycle with the raising wheelbarrow.Although combustion engine was invented more than 100 year, extensively be used on the various vehicles, and developed into very high technical merit.Why wheelbarrow still still manpower promote not install additional combustion engine? the one, wheelbarrow is a kind of ancient transport vehicle, relatively seems very backward with modern vehicle, thereby is not paid attention to by people, also can not spend more energy to go research, makes it to improve to some extent; The 2nd, wheelbarrow installs combustion engine additional and truly have many difficulties on structure design.The present invention is exactly the characteristics of controlling of analyzing existing wheelbarrow, and uses modern mature technology then, is combined in dexterously on the wheelbarrow, makes it to become a kind of hand-held automotive monocycle.

Wheelbarrow has only a wheel and two car pin, and when travelling, the trammer tiltedly carries the shoulder belt on the handlebar on the arm piggyback, and bipod separates, and the two hand-tight handlebars of holding are firmly mentioned the car pin.At this moment, two pin of trammer become three point support with wheel, and the center of gravity of car is between 3 o'clock, and the close together of the close wheel of center of gravity, makes wheel bear most of load-carrying, and the people bears small part weight.During promotion, bend over to lift up stern, forward lean also firmly promotes car to advance.In the driving process, because road is rugged, vehicle body jolts, and the irregular variation of center of gravity all will be leaned on the power of pedaling of the bearing force and the bipod of two arms, carries out center of gravity at any time and regulates and promote car and be traveling on the country trail.This shows, during go-cart, can not unclamp trick and do other thing, otherwise car will cover, the operating feature of Here it is manpower wheelbarrow.Installing the wheelbarrow of combustion engine additional, how to adapt to these characteristics, is exactly design content of the present invention.

At first, select to be fit to combustion engine and the tire that wheelbarrow is used, could determine the load-carrying and the speed of a motor vehicle of automotive monocycle.The combustion engine of wheelbarrow configuration can be chosen on market, can match engine petrol, also can select diesel motor for use.Its maximum power is between 2.2～3KW (3～4 horsepowers), and maximum speed of revolution is no more than 3000 rev/mins, and volume is little, and is in light weight.Automotive monocycle is established two gears of speed, when driving engine was in maximum speed of revolution, the highest line car speed per hour of fast car bumper is no more than 8km/h, and was approaching with people's walking speed per hour, the F-Zero of slow train retaining is about 4km/h, also can control throttle conversion road speed in this section speed per hour.Why the slow train gear to be set? the one, wheel can obtain bigger moment of torsion when car went up a slope, and improved the hill climbing ability of car; The 2nd, install a little inclined to one side wheel additional for studying automotive monocycle from now on, make it to become tiller, preset a reasonably ploughing speed.Because wheelbarrow energy original place conversion direction is not so establish the reversing gear.In addition, driving engine unstart or starting back power-transfer clutch are at disengaged position, and automotive monocycle can both promote by manpower.

It is after the power that wheelbarrow installs combustion engine additional, its power transmission and control and as automobile or walking tractor, will be equipped with power-transfer clutch, change speed gear box, wheel braking device and operating-controlling mechanism thereof, car is engaged with the power transmission of driving engine at any time or separate, and by change speed gear box conversion road speed, can drag when needing parking or deceleration.Disposing these parts all will have separately operating-controlling mechanism, realizes with manual operation.The power-transfer clutch of automobile, brake and throttle tramp with one's feet, and walker tractor is moving with pulling, and automotive monocycle can not vacate pin and come stepping on clutch, also can not unclamp a hand and remove to stir the gear handle.Operating feature according to wheelbarrow, speed-changing gear box of the present invention does not adopt handsetting gear to change the control method of ratio of number of teeth, power-transfer clutch does not adopt dry disc clutch spring application or that lever compresses yet, but dexterously with two pairs of gear pairs that width between centers is identical, ratio of number of teeth is different in the change speed gear box, the wet friction clutch-plate is installed on the end face of two driven gears separately, and the clutch gear that forms the different ratios of number of teeth of speed car two retainings is paid.Pay when fast car bumper clutch gear and to be in engage position, change speed gear box output express rotating speed, the idle running of slow train gear pair; Pay when slow train retaining clutch gear and to be in engage position, change speed gear box output slow train rotating speed, the idle running of express gear pair.As long as control power-transfer clutch from just realizing fast and slow speed of a motor vehicle conversion with closing.Though many cover power-transfer clutchs in the change speed gear box have lacked the gear handle of a handsetting gear, meet the handling characteristics of wheelbarrow.

Analyze two hands controlling wheelbarrow again, to determine which kind of method compressing and to control power-transfer clutch with.Can not leave handlebar though push away the hand of wheelbarrow, thumb and forefinger can unclamp.The grip force of people's finger bending is far longer than the power of opening that finger stretches, and according to these characteristics, the thrust of clutch-lining of the present invention does not adopt spring or lever, and adopts hydraulic oil to come the pressing friction sheet.Because be the thrust that can not overcome spring or lever with the stingy power of a forefinger, and be very easy with angle of valve core rotation that a forefinger removes to pull the hydraulic manual rotary valve.If the employing electromagnetic valve is pressed electric knob and can be controlled clutch just need only point, just to adorn a cover supply unit on the car more.As not adopting electromagnetic valve, also can utilize the power of driving engine, in change speed gear box, establish hydraulic efficiency gear, with the pressure of hydraulic oil, control by manual rotary valve.This rotary valve should have---neutrality---slow three positions soon, and when spool during at center position, hydraulic oil is closed, and does not all have pressure in two hydraulic rams of speed car, and power-transfer clutch is in released state, and wheelbarrow separates with power, can only promote by manpower; When the manual rotary valve angle that turns left, hydraulic oil and express oil cylinder are connected, and the compacted joint of express clutch gear, car are done the express operation.Remove express, rotary valve must be rotated back into center position from the left side.Connect the slow train power-transfer clutch, the necessary again angle of turning clockwise of rotary valve ...With regard to forming the rotating rule control spool be: left---neutrality---to the right---neutrality is rotated so repeatedly, just can control power-transfer clutch from close,---speed change of neutrality---slow train---neutrality is travelled to realize the express of wheelbarrow.The rotation repeatedly of this spool directly removes to stir the bar handle of spool with a forefinger, can occur the difference that crooked grip force of forefinger and forefinger stretch the power of opening again.The forefinger bending energy is scratched the angle that movable valve plug rotates, and is also very smooth, the thrust of stretching again with forefinger, and differing promotes spool surely and gets back to original position, also can feel very not smoothly.For this reason, the present invention must design and only utilize the forefinger grip force can scratch the stingy machine of moving ratchet-type, this stingy machine is only scratched moving gear change hand lever with forefinger, drive ratchet and stir 90 ° of ratchet anticlockwise motions, eccentric link on the ratchet turns left 90 ° and promote the spool rocking arm and forward the express position to from first dead center, and check sheet is with ratchet lock, the express clutch engagement realizes that express travels.Unclamp forefinger, ratchet is got back to the home position under action of reset spring.Want the express disengaging of clutch, need only scratch moving gear change hand lever with forefinger again, ratchet repeats above-mentioned action again, and eccentric link pulling spool forwards center position to, and the hydraulic oil of express oil cylinder is cut off, and power-transfer clutch is in and leaves the position.Unclamp forefinger, ratchet returns original position again.Clock over, forefinger is scratched moving gear change hand lever again ...So only intermittently scratch moving gear change hand lever with forefinger, just---the circulation control action of neutral (neutral)---(slow train) to the right---neutral (neutral) of can realizing (express) left of spool, guarantee that the hydraulic valve core manoeuvrable is reliable, thereby only just solved the problem of controlling of automotive monocycle clutch and speed change with the gear change hand lever on the stingy machine.

Various vehicles all require starting slowly from dead ship condition to bringing into operation, and then gentle acceleration, and wheelbarrow is no exception.Manual rotary valve needs only slow rotational valve core and can reach this requirement, and electromagnetic valve just is difficult to accomplish slow starting.

The automotive monocycle speed of a motor vehicle is very slow, travels on die Dorfstrasse, and road is rugged, and the road conditions complexity must be provided with braking device, guarantees traffic safety.One cover expanding brake formula brake gear is installed in the cavity of wheel tyre bead, handle formula brake handle be contained in right handlebar below, also be scratch with forefinger moving, the size of forefinger grip force, the order of importance and emergency of decision brake.

Throttle control handle also is contained in right handlebar brake handle top, stirs plus-minus convertible road speed of throttle and shutdown with thumb.

Driving engine and change speed gear box can only be installed in below the compartment, the size of diameter of tyres, and the mounting condition and the carriage underframe that satisfy driving engine have enough spaces from the road surface, the weight capacity of 500kg also will be arranged.In addition, wheelbarrow is controlled where the shoe pinches, also has the lateral stability extreme difference.Adopt expanded letter, nonskid tire, the area that contacts to earth increases, and not only can adapt in the earth travels down, and lateral stability is made moderate progress.

Wheelbarrow does not have the compartment, has only a packaged goods platform, high about should being designed to, middle low V shaped slab.T shape shelf are housed on the centre of V shaped slab and the trailing edge, and goods just leans against on the T shape frame, ties up with rope again.In the driving process, the car shake, goods produces displacement, and V shaped slab has an inside gradient, and goods can be drawn close from the trend central support in shake, center of gravity is remained unchanged be beneficial to lateral stability, guarantees traffic safety.

Truck and tritruck are all by the chassis of being made up of roof beam structure, and various parts such as driving engine, change speed gear box, wheel all are contained on the chassis.Beam frame structure is not adopted on chassis of the present invention, but is designed to the box-like chassis by the steel plate welding.Two sections of front and back are divided on the chassis: semicircle wheel cover is arranged in the carton and crate of leading portion, and wheel cover is welded in becomes the reinforcement of carton and crate gusset in the case, and axletree bearing and wheel are installed in the wheel cover.Outside, box-like chassis, driving engine is installed on the right side, and change speed gear box is installed in the left side, makes transverse center of gravity in a basic balance; The chassis back segment is the tool box that links to each other with semicircle wheel cover, and the front, tool box is little, and the back is big and flat and dark, acclivitous loudspeaker box-like, but interior holding tool of case and rope, and the outside is welded with the splayed handlebar at the bottom of the case, and shoulder belt and operating-controlling mechanism are arranged on the handlebar.Handlebar also will be regulated center of gravity except bearing a heavy burden, make car keep the manipulation force of balance to pass to the box-like chassis, and car just can travel evenly.

Description of drawings

Fig. 1 is a hand-held automotive monocycle of the present invention overall layout chart;

Fig. 2 is a box-like chassis structure scheme drawing;

Fig. 3 is a hydraulic clutch speed-changing gear box cutaway view;

Fig. 4 is the hydraulic work system schematic diagram;

Fig. 5 is wheel and brake gear part sectional view;

Fig. 6 is that hydraulic manual rotary valve and ratchet-type are scratched the machine cutaway view.

Embodiment

Fig. 1 is a hand-held automotive monocycle of the present invention overall layout chart.The main body of vehicle frame of automotive monocycle is box-like chassis (5), and various parts all are installed on the chassis, concrete layout: the V shaped slab (2) that is welded with the loading thing on box-like chassis (5).Low in the middle of the V shaped slab, left and right sides height, along the axis and trailing edge is traditional thread binding that detouchable T shape shelf (1) are arranged, the goods of dress small size just is close to T shape shelf, and ties up with rope; The goods of dress large volume can be pulled down T shape shelf, directly is contained on the V shaped slab.When car is advanced, mobile trend is arranged, in the middle of trend, draw close, guarantee that the transverse center of gravity of car is constant, make traffic safety because of the leaning angle of both sides V shaped slab because of shake makes goods.

Driving engine (3) is installed on the right on box-like chassis (5) (annotating: see with the trammer position, down together).The transmission shaft of driving engine (6) passes from wheel (11) fwd hole, is connected with the hydraulic clutch speed-changing gear box (9) on the left side.Not impaired for preventing car to the right overturning time protection driving engine, under the engine installation seat board, be welded with right fender bracket (4).

Hydraulic clutch speed-changing gear box (9) is installed on the left side on box-like chassis (5), and is not impaired for preventing car protection change speed gear box when the overturning of the left side, also is welded with left fender bracket (8) under change speed gear box.Manual rotary valve rocking arm (10) is arranged on the change speed gear box, have pull bar to scratch machine (12) and be connected with the ratchet-type on the left handlebar.

The following installation wheel (11) on box-like chassis (5), posteroinferior two sides are welded with two handlebars and car pin, and trammer's energy walking vehicle is indiscriminately ad. as one wishes controlling car.During parking, two car pin contact to earth and become three point support with wheel (11), and car can be parked on the road surface reposefully.Ratchet-type is housed on left handlebar scratches machine (12), engine throttle handgrip (13) is housed above the right handlebar, install below the throttle and carry dynamic formula brake handle (14).

Fig. 2 is a box-like chassis structure scheme drawing.Box-like chassis (5) is the box beam shelf structure that is welded into steel plate, is welded with one in the forebody box Open Side Down the semicircle wheel cover (20) of back-off, and it is the guard shield of tire, is again the reinforcement gusset of box beam.The latter half of opening rectangle reverse taper tool box (21) backward that is welded with of box along both sides, tool box hemline welding tractor handle, makes handlebar become herringbone separately to the back upper place.There is engine installation seat (15) on the right of box, and it has ear shape hole (16), makes the engine installation bolt have certain setting range.There is through hole (17) both sides of box, engine driveshaft (6) passes from the hole, be connected with the elementary input shaft that the left side change speed gear box mount pad (18) of box is gone up the hydraulic clutch speed-changing gear box of installing (9) again, after gear change, the final stage output shaft passes through hole (19) again and is connected with the axle head of wheel (11), makes box-like chassis (5) become the erecting stage of each parts.

Fig. 3 is a hydraulic clutch speed-changing gear box cutaway view.Five pairs of bearing holes are arranged on the gearbox body (32), one (22), two (25), three (28), four (30) and five (31) are housed respectively.On one (22) gear Z is housed ₁On two (25) gear Z is housed ₂, Z ₃, Z ₅One end of three (28) is equipped with gear Z ₇With express hydraulic ram K, oil cylinder K is fixed and can not rotate by support (29).Oil cylinder piston and express active friction plate (26), from movable friction plate (27), clutch gear Z ₄Contact; The other end is equipped with slow train hydraulic ram M, its piston and slow train active friction plate (26), from movable friction plate (27), clutch gear Z ₆Contact.On four (30) gear Z is housed ₈, Z ₉On five (31) gear Z is housed ₁₀

The spindle nose of one (22) inserts the through hole (17) on (Fig. 2) box-like chassis (5) and joins with (Fig. 1) engine driveshaft (6).The hole (19) that the spindle nose of five (31) inserts box-like chassis (5) is connected with the axle of wheel (11), drives wheel rolling.

The spindle nose of two (25) of change speed gear box has keyway to be connected with the hydraulic oil pump (24) of outside, and Hydraulic Elements adapter plate (23) is equipped with in the inside, and the connection oil pipe K of express hydraulic ram K is arranged on the adapter plate (23) ₃With slow train hydraulic ram M be connected oil pipe M ₃

When hydraulic oil enters express oil cylinder K, with active friction plate (26), from movable friction plate (27) and express clutch gear Z ₄Compressive engagement.At this moment, the express transmission ratio of number of teeth i of hydraulic clutch speed-changing gear box (9) _kFor:

$i_k=\frac{z_1}{z_2}\·\frac{z_3}{z_4}\·\frac{z_7}{z_8}\·\frac{z_9}{z_{10}}$

The rotating speed of engine driveshaft (6) input drives wheel (11) and rotates behind gear reduction, realize the express operation.When stepping on the gas, the slow train clutch gear is paid Z ₅, Z ₆Be in released state, in change speed gear box, dally.

When hydraulic oil enters slow train hydraulic ram M, with slow train active friction plate (26), from movable friction plate (27) and slow train clutch gear Z ₆Compressive engagement.At this moment, the slow train pinion ratio i of hydraulic clutch speed-changing gear box (9) _MFor:

$i_M=\frac{z_1}{z_2}\·\frac{z_5}{z_6}\·\frac{z_7}{z_8}\·\frac{z_9}{z_{10}}$

The rotating speed of engine driveshaft input after gear change, is realized the slow train operation.When clocking over, the express clutch gear is paid Z ₃, Z ₄Idle running.

When gear change hand lever is placed on center position or not starting of driving engine, hydraulic clutch gear Z ₄, Z ₆Be in released state.At this moment, moving wheelbarrow is tried hard to recommend in personnel selection, and wheel (11) becomes driving wheel and oppositely drives Z ₁₀, Z ₉, Z ₈, Z ₇The idle running of the two pairs of gear pairs realizes unpoweredly, also can promote wheelbarrow with manpower, drives several gears and dallies but the gas of will requiring great effort more.

The present embodiment as disliking the speed of a motor vehicle too fast or slow excessively, need only increase and decrease gear Z implementing test session ₁, Z ₂The gear ratio can improve or reduce the speed of a motor vehicle.As only improving separately or reducing the express speed of a motor vehicle, just change gear Z ₃, Z ₄Ratio of number of teeth; As only improving separately or reducing crawl speed, just change gear Z ₅, Z ₆Ratio of number of teeth just can make hydraulic clutch speed-changing gear box (9), finally adapt to the operating needs of hand-held automotive monocycle.

Fig. 4 is the hydraulic work system schematic diagram.According to pascal's principle design-calculated hydraulic efficiency pressure system, purpose is the pressure oil that oil pump (24) is pumped, and acts on the piston of express hydraulic ram K or slow train hydraulic ram M, makes piston move work done, and friction clutch disc is compressed, and this thrust can be calculated with following formula:

F＝10PSη (N)

In the formula: F---thrust (N)

P---pressure (bar)

S---piston action area (cm ²)

η---efficient

The size of thrust F is relevant with efficient with piston action area S, system pressure P.If piston area is constant, just can only improves system pressure and obtain enough thrust F.The piston miles of relative movement of two oil cylinders of this hydraulic efficiency pressure system is very little, and power is low, thereby adopts the safety overflow valve of no priority valve.Though shortcomings such as this simple direct acting type by pass valve has operation pressure to lag behind, and noise is big can satisfy the system works requirement, the noise also sound of launched machine is covered.After test,, change the by pass valve that priority valve is arranged again if this kind by pass valve is not competent.

The pressure spring pine of safety overflow valve (35) is arrived minimum position, fire an engine (3), throttle (13) is in minimum speed, oil pump (24) work, hydraulic oil sucks oil pump (24) from fil (33), after the pressurization, one the road to compression indicator (34), and one the road to manual rotary valve (36) center position O ₃Wait for that another road is to safety overflow valve (35).When hydraulic pressure greater than spring pressure, safety overflow valve (35) is backed down, hydraulic oil overflows back oil sump.Two oil cylinder K and M and oil pipe all lead to oil sump, do not have pressure.At this moment, tighten the spring pressure of safety overflow valve (35), pressure is risen, get final product up to the minimum pressure of compression indicator (34) index to system requirements.

When manual rotary valve (36) forwards O → K to from center position O _KThe express position, pressure oil is through O ₃K ₃Oil pipe promotes piston and is pressed on express clutch gear Z with active friction plate (26) with from movable friction plate (27) to express hydraulic ram K ₄On, make car keep off operation soon.At this moment, slow train hydraulic ram M and oil pipe M ₃All lead to oil sump, do not have pressure, slow train clutch gear Z ₆Idle running.

When manual rotary valve forwards O → M to _MThe slow train position, pressure oil is through O ₃M ₃Oil pipe promotes piston and is pressed on slow train clutch gear Z with active friction plate (26) with from friction lining (27) to slow train hydraulic ram M ₆On, make car keep off operation slowly.At this moment, express hydraulic ram K and oil pipe K ₃All lead to oil sump, do not have pressure, express clutch gear Z ₄Idle running.

The selected driving engine of the present embodiment is ready-made product, all passes through test run, the maximum power of driving engine and torque rating when indicating maximum speed.The driving engine of wheelbarrow apolegamy, maximum power are bigger than what calculate, and wheelbarrow just has certain reserve power, ability economic and reliable when travelling.In the present embodiment, may there are differences between the data of various calculating and the practical application, must could finalize the design through overtesting, the simplest way is exactly test run, all should be greater than maximum engine torque with the thrust and the brake control power of checking power-transfer clutch.During this programme test run, the wheelbarrow gr.wt., maximum speed left by driving engine, travel with the slow train retaining, this moment sudden stop, just have three kinds of phenomenons and take place: the one, car is checked, driving engine is forced to and will stops working, the engaging force that brake control power and power-transfer clutch are described is all greater than maximum engine torque, and the power-transfer clutch of car and brake gear can both guarantee that traffic safety is reliable; The 2nd, car is checked, and engine speed descends, the sound oppressiveness, and the freeing pipe over-emitting black exhaust illustrates that drag is good, clutch fading will be heightened hydraulic fluid pressure; The 3rd, car is stopped incessantly, and sending out the machine of advising has reduction of speed automatic oiling door again slightly, and car advances as usual, illustrates that clutch engagement power is passable, and drag is not enough, should adjust brake.Above-mentioned test run, still unsuccessful through adjusting, then to add large tank and friction lining diameter or increase friction lining sheet number, also can select the hydraulic oil pump of big one-level for use, examination again is up to succeeding in the test run.

The Hydraulic Elements of this programme adopt board-like installation, in Fig. 3, hydraulic oil pump (24) is contained in the axle head of two (25), connect with key, the turnover oilhole of oil pump (24) is communicated with the oilhole of Hydraulic Elements adapter plate (23), safety overflow valve (35) and manual rotary valve (36) all are contained in the Hydraulic Elements adapter plate (23), and inner oilhole is pressed Fig. 4 principle and connected, the outside oil pipe K that uses ₃, M ₃Be connected with M with oil cylinder K respectively, fil stretches to the oil sump bottom, is connected with adapter plate (23) with oil pipe.Hydraulic Elements are contained in a shared oil sump in the change speed gear box, have both utilized hydraulic oil oilgear and bearing, and power-transfer clutch is worked in oil bath, good heat dissipation, and nothing leaks outside, and structure is also compact.Certainly, also exist oil easily dirty, often clean fil, change hydraulic pressure wet goods shortcoming.After the trial-production,, again oil sump is separately made if bad.

Fig. 5 is wheel and brake gear part sectional view: expanded letter has the inflating rubber wheel (11) of anti-slip tank, is contained on the wheel tyre bead (37), becomes tire assembly.The tire assembly of automobile is the two ends that are contained in axle shaft, and changing of tire is very convenient.The tire assembly of wheelbarrow is contained on the wheel shaft of belt brake drum, and there is bearing at the wheel shaft two ends, can only be contained in the centre of two bearing seats (38) on box-like chassis (5), and changing of tire must be torn bearing seat (38) open, and is very inconvenient.Brake wheel (39) and brake facing (40) are housed in the wheel (11), leave braking gap between the two.Scratch the moving dynamic formula brake handle (14) of carrying with finger, drive pull bar (44) and rocking arm (42), brake eccentric cam (43) is rotated, brake facing (40) opened with brake wheel (39) contact, produce friction drag, play the drag effect, brake handle (14) is put forward the size of power, the order of importance and emergency of decision brake.Releasing of brake handle (14), retracing spring (41) retracts original position with brake facing (40), and brake is removed.

Fig. 6 scratches the machine cutaway view for hydraulic manual rotary valve and ratchet-type: what be equipped with on the ratchet (46) that eccentric link (45) becomes 90 ° of installations with four stirs post (51).Scratch moving gear change hand lever (50) with finger, make ratchet (48) promote to stir post (51), make 90 ° of ratchet (46) anticlockwise motions, eccentric link (45) is from first dead center O ₁Rotate 90 ° to K ₁Point, connecting rod promote manual rotary valve (36) and also forward K to from center position O _k, hydraulic circuit O ₃K ₃Connect.At this moment, non-return reed (47) withstands ratchet, and ratchet (46) can not reverse.Unclamp finger, gear change hand lever (50) resets under the effect of own wt and spring (52), and ratchet (48) drives in the wrong direction and compression torsion spring (49), ratchet (48) " is bowed " cross to stir post (51), torsion spring (49) resets ratchet (48) again, finishes manipulation process one time.

Moving 90 ° of ratchet (46) revolution, the radius of gyration of eccentric link (45) just in time equals manual rotary valve (36), and O forwards K to by center position _kDistance.So, scratch moving gear change hand lever (50) continuously, will make the eccentric link on the ratchet (46), from O ₁-K ₁-O ₂-M ₁Promote manual rotary valve (36), from O-K _K-O-M _MRealize control action again and again to power-transfer clutch.

Indicator stem (53) is arranged on the shell of eccentric link (45), before the fire an engine, hydraulic manual rotary valve (36) should be placed on center position O.At this moment, calibration bar (53) should refer on center position.

Claims (4)

1. one kind is the hand-held automotive monocycle of power with the combustion engine, by box-like chassis (5), driving engine (3) and throttle control handle (13), hydraulic clutch speed-changing gear box (9) and ratchet-type are scratched machine (12), wheel (11), brake gear and brake handle (14) are formed, it is characterized in that: only adorn a wheel (11) under box-like chassis (5), braking device is housed on the wheel, two sides, box-like chassis (5) are installed driving engine (3) and hydraulic clutch speed-changing gear box (9) respectively, ratchet-type is housed on the left handlebar scratches machine (12), on the right handlebar throttle (13) and brake handle (14) are arranged; After driving engine (3) starting, transmission shaft (6) is passed to change speed gear box (9) with power, make wheel (11) realize dynamic, can control speed change and travel.

2. hand-held automotive monocycle according to claim 1 is characterized in that: express clutch gear Z is housed on the spline shaft of hydraulic clutch speed-changing gear box (9) ₄, slow train clutch gear Z ₆, active friction plate (26) and from movable friction plate (27), fast, two groups of hydraulic clutches of slow train of composition are connected with slow train hydraulic ram M with express hydraulic ram K respectively.

3. hand-held automotive monocycle according to claim 1 is characterized in that: hydraulic oil pump (24), fil (33), compression indicator (34), safety overflow valve (35), manual rotary valve (36) are housed on the Hydraulic Elements adapter plate (23) in the change speed gear box (9), are connected with slow train hydraulic ram M with express hydraulic ram K with oil pipe respectively; Manually rotary valve (36) is connected with the stingy machine (12) of ratchet-type.

4. according to claim 1,3 described hand-held automotive monocycles, it is characterized in that: ratchet-type scratch machine (12) by ratchet (46), ratchet (48), stir the hydraulic clutch steering unit that post (51), torsion spring (49), spring (52), non-return reed (47) and gear change hand lever (50) are formed, be connected with manual rotary valve rocking arm (10) with eccentric link (45).

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