CN105015685A - Camshaft applicable to motor tricycle, electric tricycle and diesel three-wheeled vehicle - Google Patents
Camshaft applicable to motor tricycle, electric tricycle and diesel three-wheeled vehicle Download PDFInfo
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Abstract
The invention relates to a camshaft applicable to a motor tricycle, an electric tricycle and a diesel three-wheeled vehicle, in particular to a manual braking motor tricycle, a manual braking electric tricycle and a manual braking diesel three-wheeled vehicle. The invention provides the camshaft matched with a lever-type brake shoe applicable to a three-wheeled vehicle and the like (a lever-type brake shoe for short). The camshaft is installed on braking baseboards of rear wheels of the motor tricycle, the electric tricycle and the diesel three-wheeled vehicle, and the arm of force of the camshaft is larger. The large-arm of force camshaft can satisfy the characteristic of larger opening amplitude of the lever-type brake shoe. When the camshaft is used by matching with the lever-type brake shoe, the lever effect of the lever-type brake shoe can be given full play, and thus the braking force is increased and the braking effect is improved.
Description
Technical field
The present invention relates to manual braking's formula motor-tricycle, manual braking's formula electro-tricycle and manual braking's formula diesel oil three-wheeled vehicle.In particular to the brake component-camshaft (usual people are also called rod-pulling type brake equipment manual braking) on the rear service brake base plate of above-mentioned three kinds of vehicles.
Motor-tricycle refers to the various motor-tricycles being provided with motor cycle engine.Wherein, contain one and motor cycle engine is installed, but car body mass is comparatively light, and transport administration belongs to the motor-tricycle (such as: motor tricycle ridding by deformed man, the elderly's motor-tricycle etc.) of unpowered vehicle.
Background technology
For a long time, the dead and wounded number that China causes because of traffic accident is every year wandered about 310,000 rows, and it is in rising trend, the traffic accident relating to three-wheeled vehicle account for certain proportion again, the especially big traffic accident relating to three-wheeled vehicle had is in an accident just more than dead tens people, this except driveship not high, violating the regulations overcrowding beyond, the brake failure of three-wheeled vehicle is also major reason.Therefore, to spread in short widely in public centre: " brake of three-wheeled vehicle is not all right ".
For this reason, let us does a service brake experiment for manual braking's formula motor-tricycle.Experimental article is: [completely using the muscle strength of chaufeur as only braking energy source, increased the brake equipment of braking force by the principle of lever force-saving, we are called rod-pulling type brake equipment it to rod-pulling type motor-tricycle.Take the motor-tricycle of rod-pulling type service braking device, we are called rod-pulling type motor-tricycle it, and (most motor-tricycles adopts rod-pulling type brake equipment.It is reported, nearly 400 ~ 5,000,000 of the year volume of production and marketing of China's rod-pulling type motor-tricycle.Rod-pulling type brake equipment taked by whole electro-tricycles.)]; Experiment purpose is: the service brake effect of inspection rod-pulling type motor-tricycle.When this vehicle empty wagons moving velocity is approximately 30 kilometers per hour, stepping on brake pedal fiercely, stops in the front that vehicle is being approximately 6 ~ 8 meters, and the braking mark between wheel and ground is obvious; The approval weight that the label of this rod-pulling type motor-tricycle is indicated is 200 kilograms, when landing two individual weight be respectively about 75 kilograms hold visitor after, namely after load-carrying 150 kilograms, when the speed of a motor vehicle is approximately 30 kilometers per hour, stepping on brake pedal fiercely, stops in the position that this vehicle is about 20 meters in front, during the braking mark of observing and rubbing produced between wheel and ground of getting off, but at all can not find braking mark, namely wheel is not by locking.The rod-pulling type motor-tricycle using other various brand instead is reformed above-mentioned service brake experiment repeatedly, and result is all roughly the same.
Experimental result: during the empty wagons service brake of (1) rod-pulling type motor-tricycle, braking effect is substantially good, rear wheel locking, can have braking mark; (2) after the load-carrying of rod-pulling type motor-tricycle during service brake, braking effect is obviously deteriorated, and what rear wheel degree was different embraces dead, does not have braking mark; (3) after load-carrying, rear wheel service brake weak effect is the universal phenomenon of rod-pulling type motor-tricycle.
(above-mentioned experiment shows: after people have not done load-carrying, service brake was tested, only when empty wagons service brake is tested, there is braking mark, just think that braking is qualified by mistake, after people do not expect load-carrying, braking effect can be deteriorated, and the situation of not dead wheel can occur after not expecting load-carrying to embrace).
Since the early 1990s in last century, a large amount of motor-tricycles is developed by two-wheeled motor vehicle, so far the history of recent two decades is had, the development of three-wheeled vehicle is that car body is increasing, car body mass is increasing, the situation that manufacturing scale is increasing, but, brake equipment still almost indiscriminately imitates the rod-pulling type brake equipment of two-wheeled motor vehicle then so far completely, car body mass and braking force are seriously incompatible, and the car body mass day by day increased displays more and more highlightedly with the hypodynamic contradiction of braking.
[total weight of the rod-pulling type motor-tricycle found reaches 800 kilograms (weight that label indicates).Such as: the model that Mount Everest great river, Chongqing motor-tricycle Co., Ltd produces in August, 2009 is: the motor-tricycle of DJ150ZH-2: conducting oneself with dignity is: 300 kilograms; Load carrying ability is: 500 kilograms; In addition, the motor-tricycle of the model ZS150ZH-2D that Jiangsu Zongshen Motor Tricycle Manufacture Co., Ltd. produces in September, 2009, the total weight that label indicates is 660 kilograms, wherein conducts oneself with dignity: 360 kilograms, load-carrying: 300 kilograms].
How to improve the service brake effect of three-wheeled vehicle? every braking problem relating to vehicle, all be unable to do without lever problem, especially most three-wheeled vehicles, be unable to do without lever problem especially.
That can rotate around attachment point under force strongly be called lever, such as: crow bar, draw water tractor driver Bing etc.Lever can be straight, also can be curved, " strong " not necessarily rod, general reference have certain length but under the effect of external force indeformable object.
Lever has " five elements ":
(1) fulcrum: lever, around the attachment point rotated, is called fulcrum.When lever rotation, fulcrum is relatively-stationary.
(2) power: the power making lever rotation, is called power.
(3) resistance: the power hindering lever rotation, is called resistance.
(4) power arm: from fulcrum to the vertical distance of dynamic action line, be called power arm.
(5) resistance arm: from fulcrum to the vertical distance of drag effect line, be called resistance arm.
Fig. 1 is the schematic diagram of the rear wheel pull rod type service braking device of motor-tricycle of the prior art.It comprises four levers: be positioned at each lever on two rear service brake base plates, sometimes, we are also called trailing wheel swing arm lever it, and be called for short swing arm regulations and parameters, this swing arm lever is made up of swing arm 5 and camshaft 6; Be positioned at (hereinafter referred to as the chaufeur underfooting) lever near chaufeur right crus of diaphragm, sometimes, we are also called foot pedal lever it, this foot pedal lever is formed by stepping on arm 1, treadle 2, axle 11 and pedal 10; Also have an intermediate lever between three levers recited above, sometimes, we are also called rocker lever it, and this rocker lever is made up of rocking arm 3, rocking bar 4 and axle 11; Be connected with pull bar 20 between the resistance arm (treadle 2) of the lever of chaufeur underfooting and the power arm (rocking arm 3) of intermediate lever, two resistance arms (rocking bar 4) on intermediate lever are connected with pull bar 21 and pull bar 22 with the power arm (swing arm 5) of the lever on two rear service brake base plates respectively.(rear service brake base plate not shown in the figures only illustrates the brake shoe brake cheek 30 being positioned at and pulling at the bottom of this braking)
[in order to the convenience described, sometimes, we also can be called first lever the lever (foot pedal lever) being positioned at chaufeur underfooting; Intermediate lever (rocker lever) is called second lever: be called rear turbine/lever being positioned at lever (swing arm lever) abbreviation pulled at the bottom of rear service brake].
Motor-tricycle is developed by two-wheeled motor vehicle, and the rear wheel pull rod type brake equipment of motor-tricycle is formed by the rear wheel pull rod type brake equipment transformation of two-wheeled motor vehicle.We the rear wheel pull rod type brake equipment of motor-tricycle compared with the rear wheel pull rod type brake equipment of two-wheeled motor vehicle, find that the lever of their chaufeur underfooting and rear turbine/lever are almost identical (lever of their chaufeur underfooting being compared with rear turbine/lever, the proportionate relationship of its shape, size and power arm and resistance arm, all almost identical), their difference is only had more an intermediate lever in the rear wheel pull rod type brake equipment of motor-tricycle.
Cause wheel to embrace one of them not dead reason and be just intermediate lever.
For a long time, the motor-tricycle that domestic more than 200 enterprises manufacturing three-wheeled vehicle produce, the structure of nearly all intermediate lever is completely the same, that is: two resistance arms (rocking bar 4) on intermediate lever are equal, and it is equal [in motor-tricycle field with the power arm (rocking bar 3) on intermediate lever, more than 200 manufactures in the enterprise of motor-tricycle at home, only find that the power arm of the intermediate lever of the motor-tricycle that the Ji Jia enterprise listed produces is slightly larger than resistance arm below, only find a producer (the Feitian five-pointed star board motor-tricycle that Feitian Lei Wo international heavy industry joint-stock company in Zhucheng, Shandong Province produces) in September, 2009, afterwards, in succession find again several producer (large fortune in Luoyang, north is large sun easily, Luoyang Mount Everest etc.), in electro-tricycle field, the intermediate lever of whole electro-tricycles all takes two resistance arms (rocking bar 4) equal, and the structure equal with the power arm (rocking arm 3) on intermediate lever].
In FIG, if represent the pulling force of pull bar 20 with F;
The pulling force of pull bar 21 is represented with M;
The pulling force of pull bar 22 is represented with N;
The power arm of intermediate lever is represented with R;
The resistance arm of intermediate lever is represented with r;
(power of intermediate lever is exactly the pulling force of pull bar 20; The resistance of intermediate lever is exactly the pulling force of pull bar 21 and the pulling force of pull bar 22);
According to lever principle: lever balance time, kinetic moment=resisting moment;
That is: power × power arm=resistance × resistance arm
Specific to above-mentioned intermediate lever: F × R=M × r+N × r
That is: F × R=r (M+N)
Due to: R=r
So: F=M+N
Because two resisting moments are equal, that is: M × r=N × r
So: M=N
Can find out from analysis above: when two resistance arms of intermediate lever are equal, and time equal with the power arm of intermediate lever, pull bar 21 is equal with the pulling force of pull bar 22, and the pulling force of the pulling force of pull bar 21 and pull bar 22 equals the half of the pulling force of pull bar 20 respectively,
That is:
Can find out from above formula: the pulling force of pull bar 21 equals the half of the pulling force of pull bar 20, the pulling force of pull bar 22 also equals the half of the pulling force of pull bar 20.That is, in braking procedure, pulling force is by after intermediate lever, and the size of pulling force will reduce half, and [strictly speaking, moment reduces half.When two resistance arms of intermediate lever are equal, and time equal with power arm, pulling force reduces half.In addition, above-mentioned conclusion also can be confirmed by experiment.Experimental technique is: blocked from middle part by three pull bars (pull bar 20, pull bar 21 and pull bar 22), a spring balance is connected in each truncated position, three pull bars connect three spring balances altogether, when we be applied to step on pull the application force varied in size on 10 time, read the numerical value of three spring balances respectively, consequently: the pulling force of pull bar 21 is equal all the time with the pulling force of pull bar 22; And the pulling force of pull bar 21 equals the half of the pulling force of pull bar 20 all the time; The pulling force of pull bar 22 also equals the half of the pulling force of pull bar 20 all the time.Such as: when the reading of the spring balance on pull bar 20 is 10 kilograms, the reading of the spring balance on pull bar 21 is 5 kilograms, and the reading of the spring balance on pull bar 22 is also 5 kilograms; When the reading of the spring balance on pull bar 20 is 30 kilograms, the reading of the spring balance on pull bar 21 is 15 kilograms, and the reading of the spring balance on pull bar 22 is also 15 kilograms; When the reading of the spring balance on pull bar 20 is 60 kilograms, the reading of the spring balance on pull bar 21 is 30 kilograms, and the reading of the spring balance on pull bar 22 is also 30 kilograms etc.].
For a long time, almost identical with rear turbine/lever with the lever of the chaufeur underfooting of two-wheeled motor vehicle with rear turbine/lever from the lever of the chaufeur underfooting of motor-tricycle, people do not identify and arrange two resistance arms on intermediate lever, pulling force is by after intermediate lever, pulling force can be caused to reduce the result of half, thus do not identify the result that can cause braking force drop by half, and then do not recognize that the rear wheel pull rod type brake equipment of motor-tricycle also exists the shorter shortcoming of the power arm of lever.
[in recent years, in succession find the situation of power arm slightly larger than resistance arm of the intermediate lever of the motor-tricycle of described several manufacturer production, but, meanwhile, the power arm of first lever of this motor-tricycle of described several manufacturer production reduces again widely, the length of the power arm of first lever of this several producer has been down to 200 millimeter (for a long time, the length of the power arm of the foot pedal lever of motor-tricycle is almost identical with the length of the power arm of the foot pedal lever of two-wheeled motor vehicle, approximately all in 260 ~ 280 millimeter or upper and lower, can regard as roughly and approximately be down to about 200 from 260 ~ 280 millimeter), like this, the power arm of intermediate lever is slightly larger than resistance arm outwardly, but the braking force of whole rear wheel pull rod type brake equipment does not increase in fact, its object is not the result produced for the resistance arm of two on intermediate lever, the technical personnel this demonstrating described several producers does not identify pulling force equally by after intermediate lever, pulling force will reduce half.(reduction that the power arm of the amplitude increased from the power arm of intermediate lever and foot pedal lever is simultaneously a large amount of, described several producer does not identify pulling force by after intermediate lever, and pulling force will reduce half.On the contrary, if the power arm of the foot pedal lever of motor-tricycle remains unchanged, namely the length of 260 ~ 280 millimeter roughly is still remained on, and the length of power arm on intermediate lever equals the length sum of two resistance arms on this intermediate lever, then can think that people have recognized that pulling force is by after intermediate lever, pulling force will reduce half.Because when only having the length when the power arm on intermediate lever to equal the length of the resistance arm of this intermediate lever of twice, pulling force just can be made by after intermediate lever, remain unchanged.If: certain intermediate lever is provided with a power arm and two resistance arms, the maxim of power arm is 200 millimeters, the maxim of one of them resistance arm is 100 millimeters, the maxim of another resistance arm is also 100 millimeters, so, pulling force is by after this intermediate lever, and the size of its pulling force remains unchanged)].
Can find out from point folding above and experiment: existing motor-tricycle is relative to two-wheeled motor vehicle, the car body mass of motor-tricycle increases, but braking force have dropped half on the contrary, is approximately the braking force of two-wheeled motor vehicle
People did not both find, did not also expect that pulling force is by after intermediate lever, can change stealthily.People always habitually think to prejudice: the effect of intermediate lever is only used to the point of action of change power, does not change the size of power; And objective fact is: intermediate lever not only changes the point of action of power, the size of power also there occurs change stealthily.
Manual braking's formula electro-tricycle is roughly the same with the rear wheel travelling crane braking device of above-mentioned manual braking's formula motor-tricycle with the rear wheel travelling crane braking device of manual braking's formula diesel oil three-wheeled vehicle, they equally all contain an intermediate lever (or all containing the lever that is provided with two resistance arms), after asking lever during same pulling force passes through, the size of pulling force will reduce half, same braking force for approximately only two-wheeled motor vehicle 1/2nd.
For the shortcoming that the braking force of the rear wheel travelling crane braking device of above-mentioned three-type-person's dynamic braking formula three-wheeled vehicle is minimum, the applicant have submitted name on September 30th, 2010 respectively to Patent Office of State Intellectual Property Office and is called: the utility model of " lever brake shoes for three-wheeled vehicle and other vehicles " (hereinafter referred to as " lever brake shoe ") and application for a patent for invention, and the patent No. or application number are respectively: " 201020557185.3 ", " 201010502972.2 "; The publication number of utility model patent is: " CN201794969U "; The publication number of application for a patent for invention is: " CN102032295A ".
After above-mentioned three-type-person's dynamic braking formula three-wheeled vehicle of famine braking force installs described " lever brake shoe ", compensate for the deficiency of the braking force of brake equipment, considerably increase braking force, improve braking effect.
Friction lining mainly offsets to supporting pin (fulcrum of lever) direction by the technical scheme of " lever brake shoe " on the basis of existing technology, namely shortens the resistance arm of brake shoe brake cheek lever.When power arm is constant, shorten resistance arm, be just equivalent to increase power arm.Thus make " lever brake shoe " become further laborsaving lever.
Another feature according to lever: laborsavingly do not economize merit.That is: when using laborsaving lever, power of having economized but has taken distance, that is: power of having economized but has taken the distance of dynamic action point movement.
Specific to " lever brake shoe ", when friction lining is after the skew of supporting pin direction, be equivalent to the power arm increasing brake shoe brake cheek lever, thus make " lever brake shoe " become laborsaving lever relative to existing brake shoe brake cheek, economize power, but distance has been taken, take the distance of dynamic action point movement, that is: brake shoe brake cheek can increase away from the distance of that one end (that one end contacted with the camshaft) movement of supporting pin, that is: in braking procedure, the amplitude that " lever brake shoe " opens can increase.
As shown in Figure 2, (camshaft 6 is in rotary course in camshaft 6 to make brake shoe brake cheek 30 open required power resources, squeese pressure is produced to brake shoe brake cheek 30), and camshaft 6 of the prior art is in rotary course, the arm of force is less (generally, people is applied to the power of lever or makes lever be called the power of lever according to the power that the wish of people is rotated, and the resistance hindering the lever power that direction is rotated as required to be called lever; Equally, generally, the arm of force that the wish according to people is rotated being called power arm, being called resistance arm hindering the lever arm of force that direction is rotated as required.But under special circumstances, if conversely, people also can be called power arm resistance arm, or power arm is called resistance arm.So the present invention is referred to as the arm of force power arm and resistance arm, that is: the arm of force comprises power arm and resistance arm), can not meet the feature that amplitude that " lever brake shoe " open is larger better.Only have the camshaft of the large arm of force in rotary course, brake shoe brake cheek just can be made to open larger amplitude, could support the use better with " lever brake shoe ".
(lay special stress on is needed to point out: the arm of force of addressed camshaft 6, refers to the arm of force when brake compensation above.Here lay special stress on " balance " two word.As shown in Figure 2, O point represents the axle center of camshaft 6, and B point represents when brake compensation, the extruding stress action spot of camshaft 6 pairs of brake shoe brake cheek 30; The arm of force of camshaft 6 refers to the distance from O point to B point.In practice, owing to repeatedly braking continually, with the naked eye obviously can observe near the B point of camshaft 6, have and the bright metal surface that produces stressed through repeatedly extrusion friction, generally, this bright metal surface can present fitfull, various difform small size, this small size is exactly bearing surface, and the geometric center point of this bearing surface is exactly B point.That is: B point is stressed geometric center point.As can be seen here, the plane of action of one that generates when bearing surface is repeatedly brake compensation comparatively stable application force.In addition, M represents the thickness of camshaft 6, and L represents the longitudinal length of camshaft 6).
The camshaft 6 be positioned on rear wheel back-plate links together with swing arm 5, form a lever, the power arm of this lever is the effective length of swing arm, fulcrum is the axle center of camshaft 6, the distance that OB is 2 is resistance arm, and generally, people always think: the distance that OB is 2 is less, namely the resistance arm of camshaft 6 is less, and braking effect is better.But people do not expect: when camshaft 6 and " lever brake shoe " with the use of after, the resistance arm of camshaft 6 is larger, and braking effect is better.
(camshaft 6 can regard a gauge member substantially as to following is a list the numerical value being positioned at the arm of force of the camshaft 6 on rear service brake base plate of motor-tricycle of the prior art, electro-tricycle and diesel oil three-wheeled vehicle.Be arranged on the shape of the camshaft 6 on the motor-tricycle of various brand, size and the arm of force roughly the same; Be arranged on the shape of the camshaft 6 on the diesel oil three-wheeled vehicle of various brand, size and the arm of force roughly the same; Only find the size slightly difference of the arm of force of the camshaft 6 be arranged on electro-tricycle, the maximum arm of force being arranged on the camshaft 6 on electro-tricycle is: 15 millimeters):
The arm of force being arranged on the camshaft on the rear service brake base plate of motor-tricycle is: 13 millimeters.
The maximum arm of force being arranged on the camshaft on the rear service brake base plate of electro-tricycle is: 15 millimeters.
The arm of force being arranged on the camshaft on the rear service brake base plate of diesel oil three-wheeled vehicle is; 17 millimeters.
But, the enterprise manufacturing motor-tricycle, electro-tricycle and manufacture diesel oil three-wheeled vehicle does not directly manufacture camshaft, but buy (in addition from the enterprise of special manufacture component-camshaft, from camshaft accessory seen in the market and the camshaft on being arranged on vehicle rear service brake base plate, the basis of this camshaft product do not show with it manufacture this camshaft factory's name, factory site and trade mark).
Summary of the invention
First technical matters that will solve of the present invention is to provide three kinds and is arranged on the rear wheel back-plate of motor-tricycle coordinates better camshaft with " lever brake shoes for three-wheeled vehicle and other vehicles ".
The technical matters that another will solve of the present invention is to provide two kinds and is arranged on the rear wheel back-plate of electro-tricycle coordinates better camshaft with " lever brake shoes for three-wheeled vehicle and other vehicles ".
The technical matters that another will solve of the present invention is to provide two kinds and is arranged on the rear wheel back-plate of diesel oil three-wheeled vehicle coordinates better camshaft with " lever brake shoes for three-wheeled vehicle and other vehicles ".
4th technical matters that will solve of the present invention is to provide one and is provided with camshaft, and coordinates the better motor-tricycle of better braking effect with " lever brake shoes for three-wheeled vehicle and other vehicles ".
5th technical matters that will solve of the present invention is to provide one and is provided with camshaft, and coordinates the better electro-tricycle of better braking effect with " lever brake shoes for three-wheeled vehicle and other vehicles ".
6th technical matters that will solve of the present invention is to provide one and is provided with camshaft, and coordinates the better diesel oil three-wheeled vehicle of better braking effect with " lever brake shoes for three-wheeled vehicle and other vehicles ".
For solving above-mentioned first technical matters, first technical scheme of the present invention is: a kind of camshaft for motor-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, it is held to levy and is: the arm of force of this camshaft is: 15 millimeters≤arm of force <17 millimeter.
For solving above-mentioned first technical matters, second technical scheme of the present invention is: a kind of camshaft for motor-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, it is held to levy and is: the arm of force of this camshaft is: 17 millimeters≤arm of force <19 millimeter.
For solving above-mentioned first technical matters, 3rd technical scheme of the present invention is: a kind of camshaft for motor-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, it is characterized in that: the arm of force >=19 millimeter of this camshaft.
For solving another technical matters above-mentioned, 4th technical scheme of the present invention is: a kind of camshaft for electro-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, it is characterized in that: the arm of force of this camshaft is: 17 millimeters≤arm of force <19 millimeter.
For solving another technical matters above-mentioned, 5th technical scheme of the present invention is: a kind of camshaft for electro-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, it is characterized in that: the arm of force >=19 millimeter of this camshaft.
For solving another technical matters above-mentioned, 6th technical scheme of the present invention is: a kind of camshaft for diesel oil three-wheeled vehicle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, it is characterized in that: the arm of force of this camshaft is: 19 millimeters≤arm of force <22 millimeter.
For solving another technical matters above-mentioned, 7th technical scheme of the present invention is: a kind of camshaft for diesel oil three-wheeled vehicle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, it is characterized in that: the arm of force >=22 millimeter of this camshaft.
For solving above-mentioned 4th technical matters, 8th technical scheme of the present invention is: a kind of motor-tricycle, this motor-tricycle is provided with a kind of parts, these parts are camshaft, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, the arm of force >=15 millimeter of this camshaft.
For solving above-mentioned 5th technical matters, 9th technical scheme of the present invention is: a kind of electro-tricycle, this electro-tricycle is provided with a kind of parts, these parts are camshaft, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, the arm of force >=17 millimeter of this camshaft.
For solving above-mentioned 6th technical matters, of the present invention ten technical scheme is: a kind of diesel oil three-wheeled vehicle, this diesel oil three-wheeled vehicle is provided with a kind of parts, these parts are camshaft, this camshaft is arranged on the back-plate of rear wheel, and be flexibly connected with this back-plate, the arm of force >=19 millimeter of this camshaft.
After adopting the camshaft of the large arm of force, during braking, when not increasing cam axle angle, the stress action spot of camshaft can obtain larger miles of relative movement, thus makes the dynamic action of brake shoe brake cheek point obtain larger miles of relative movement.(when the camshaft of the large arm of force is identical with the angle that the camshaft of the little arm of force rotates, the distance of the stress action spot movement of the camshaft of the large arm of force is greater than the camshaft of the little arm of force.)
After above-mentioned three-type-person's dynamic braking formula three-wheeled vehicle installs the camshaft of the large arm of force, to coordinate better " lever brake shoes for three-wheeled vehicle and other vehicles ", give full play to the leverage of " lever brake shoes for three-wheeled vehicle and other vehicles ", increase braking force, improve braking effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing (except Fig. 1, Fig. 2; Each accompanying drawing is the schematic diagram of simplification) the specific embodiment of the present invention is described in further detail.
Fig. 1 is the schematic diagram of the rear wheel pull rod type service braking device of manual braking's formula motor-tricycle of the prior art.
Fig. 2 is the schematic diagram of the arm of force of camshaft of the prior art.
Fig. 3 is the front view (schematic diagram) of camshaft of the present invention.
Fig. 4 is the birds-eye view (schematic diagram) of camshaft shown in Fig. 3.
Fig. 5 is the left view (schematic diagram) of camshaft shown in Fig. 3.
Fig. 6 is the schematic diagram of the camshaft of another shape.
Fig. 7 is the schematic diagram of the camshaft of another shape.
Fig. 8 is the schematic diagram of the camshaft that section is rectangle.
Fig. 9 is the schematic diagram of the camshaft of section oval in shape.
Detailed description of the invention
Fig. 3, Fig. 4 and Fig. 5 show the embodiment of the camshaft (parts) of manual braking's formula motor-tricycle of the present invention.This camshaft 6 is arranged on the back-plate on the rear wheel of manual braking's formula motor-tricycle, and be flexibly connected with pulling at the bottom of this braking, the arm of force of this camshaft 6 equal 15 millimeters (also can with reference to figure 2, the arm of force of this camshaft 6 refers to the distance from O point to B point.The shape of this camshaft 6 is roughly the same with the shape of camshaft of the prior art, this camshaft 6 is compared with camshaft of the prior art, it is substantially only distinguished: the arm of force of the camshaft 6 in present embodiment is comparatively large, and present embodiment takes the arm of force to equal the scheme of 15 millimeters).
After taking the camshaft of the large arm of force, when braking, when the camshaft 6 of the large arm of force of present embodiment is identical with the angle that the camshaft of the little arm of force of the prior art rotates, the distance of the stress action spot movement of the camshaft 6 of the large arm of force is greater than the camshaft of the little arm of force, thus make the stress action spot of brake shoe brake cheek obtain larger miles of relative movement, that is: meet the feature that amplitude that " lever brake shoe " open is larger.So, when the camshaft 6 in this embodiment and " lever brake shoe " with the use of time, the leverage of " lever brake shoe " can be given full play to, increase braking force, improve braking effect.
Here need lay special stress on to point out: above and noted earlier and support the use to refer to support the use and be advisable.The present invention and " lever brake shoe " are two independently product or patented technologies respectively.When gap between the meticulousr or each parts that " lever brake shoe ", brake wheel and other parts manufacture is less, " lever brake shoe " completely can with the camshaft of the little arm of force of the prior art with the use of (or being called and being used alone; Be used alone the camshaft that refers to " lever brake shoe " and the little arm of force of the prior art with the use of), and reach good braking effect.Support the use compared with being used alone: the difference being only superiority and inferiority, being better effects if, goodly distinguishing preferably with effect, instead of can coordinate and the difference that can not coordinate, is not the difference of right and wrong.
With reference to embodiment above, also the arm of force of camshaft 6 can be arranged to equal 17 millimeters, equally, also the arm of force of camshaft 6 can be arranged to equal 19 millimeters, the arm of force of camshaft 6 can also be arranged on: 15 millimeters≤arm of force <17 millimeter, and be arranged on: within the scope of 17 millimeters≤arm of force <19 millimeter; Even the arm of force can also be arranged to the camshaft being greater than 19 millimeters.
With reference to embodiment above, (manual braking's formula electro-tricycle is compared with manual braking's formula motor-tricycle, its difference is only the difference of dynamic traction device substantially, the structure being positioned at the car side brake on rear wheel is roughly the same), be arranged on the camshaft (parts) on the rear wheel back-plate of manual braking's formula electro-tricycle, the arm of force of camshaft can be arranged to equal 17 millimeters, also the arm of force of camshaft can be arranged to equal 19 millimeters, the arm of force of camshaft can also be arranged on: 17 millimeters≤arm of force <19 millimeter, even the arm of force can also be arranged to the camshaft being greater than 19 millimeters.
With reference to embodiment (compared with manual braking's formula motor-tricycle, its difference is only the difference of dynamic traction device to manual braking's formula diesel oil three-wheeled vehicle substantially, and the structure being positioned at the car side brake on rear wheel is roughly the same) above.Be arranged on the camshaft (parts) on the rear service brake base plate of manual braking's formula diesel oil three-wheeled vehicle, the arm of force of camshaft can be arranged to equal 19 millimeters, also the arm of force of camshaft can be arranged to equal 22 millimeters, the arm of force of camshaft can also be arranged on: within the scope of 19 millimeters≤arm of force <22 millimeter, even the arm of force can also be arranged to the camshaft being greater than 22 millimeters.
The shape of camshaft can be various, is not limited to a kind of shape shown in Fig. 3, Fig. 4 and Fig. 5.Such as: can be shape as shown in Figure 6, can be shape as shown in Figure 7, also can be rectangular shape as shown in Figure 8, can also be elliptical shape as shown in Figure 9 etc.
After described three-type-person's dynamic braking formula three-wheeled vehicle installs the camshaft of the large arm of force, when not increasing cam axle angle, " lever brake shoe " can be made to open larger amplitude, give full play to the leverage of " lever brake shoe ", increase braking force, improve braking effect.
About " lever ": " five elements " in lever and the concept relevant to " lever ", in country or textbook, all there is unified regulation, should be as the criterion with the Uniform provisions of the science in country or textbook.
About " arm of force ": the arm of force is the general designation of power arm and resistance arm, the arm of force comprises power arm and resistance arm (that is: power arm can be called the arm of force, and resistance arm also can be called the arm of force).The arm of force refers to when braking " balance ", the straight-line distance from the axle center (O point) of camshaft to stress point (B point), as shown in Figure 5 (also can with reference to figure 2).Here lay special stress on " balance " two word.
The present invention is relevant with the size of the arm of force of camshaft, and has nothing to do with the shape of camshaft.How shape regardless of camshaft changes or bends.The back-plate of every rear wheel at manual braking's formula motor-tricycle, manual braking's formula electro-tricycle and manual braking's formula diesel oil three-wheeled vehicle is provided with the camshaft of the large arm of force, and the arm of force of this camshaft meet or exceed of the present invention and numerical value, just should fall within scope of the present invention.
Claims (10)
1. the camshaft for motor-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and is flexibly connected with this back-plate, it is characterized in that: the arm of force of this camshaft is: 15 millimeters≤arm of force <17 millimeter.
2. the camshaft for motor-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and is flexibly connected with this back-plate, it is characterized in that: the arm of force of this camshaft is: 17 millimeters≤arm of force <19 millimeter.
3., for a camshaft for motor-tricycle, this camshaft is parts, and this camshaft is arranged on the back-plate of rear wheel, and is flexibly connected with this back-plate, it is characterized in that: the arm of force >=19 millimeter of this camshaft.
4. the camshaft for electro-tricycle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and is flexibly connected with this back-plate, and it is held to levy and is: the arm of force of this camshaft is: 17 millimeters≤arm of force <19 millimeter.
5., for a camshaft for electro-tricycle, this camshaft is parts, and this camshaft is arranged on the back-plate of rear wheel, and is flexibly connected with this back-plate, it is characterized in that: the arm of force >=19 millimeter of this camshaft.
6. the camshaft for diesel oil three-wheeled vehicle, this camshaft is parts, this camshaft is arranged on the back-plate of rear wheel, and is flexibly connected with this back-plate, it is characterized in that: the arm of force of this camshaft is: 19 millimeters≤arm of force <22 millimeter.
7., for a camshaft for diesel oil three-wheeled vehicle, this camshaft is parts, and this camshaft is arranged on the back-plate of rear wheel, and is flexibly connected with this back-plate, it is characterized in that: the arm of force >=22 millimeter of this camshaft.
8. a motor-tricycle, this motor-tricycle is provided with a kind of parts, and these parts are camshaft, and this camshaft is arranged on the back-plate of rear wheel, and are flexibly connected with this back-plate, it is characterized in that: the arm of force >=15 millimeter of this camshaft.
9. an electro-tricycle, this electro-tricycle is provided with a kind of parts, and these parts are camshaft, and this camshaft is arranged on the back-plate of rear wheel, and are flexibly connected with this back-plate, it is characterized in that: the arm of force >=17 millimeter of this camshaft.
10. a diesel oil three-wheeled vehicle, this diesel oil three-wheeled vehicle is provided with a kind of parts, and these parts are camshaft, and this camshaft is arranged on the back-plate of rear wheel, and are flexibly connected with this back-plate, it is characterized in that: the arm of force >=19 millimeter of this camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168932.7A CN105015685A (en) | 2014-04-17 | 2014-04-17 | Camshaft applicable to motor tricycle, electric tricycle and diesel three-wheeled vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168932.7A CN105015685A (en) | 2014-04-17 | 2014-04-17 | Camshaft applicable to motor tricycle, electric tricycle and diesel three-wheeled vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105015685A true CN105015685A (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410168932.7A Pending CN105015685A (en) | 2014-04-17 | 2014-04-17 | Camshaft applicable to motor tricycle, electric tricycle and diesel three-wheeled vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN105015685A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2245029Y (en) * | 1995-12-18 | 1997-01-15 | 王建民 | Brake device for tricycle |
| DE29715215U1 (en) * | 1997-08-26 | 1997-11-06 | Reineke, Wolfgang, 46509 Xanten | Three-wheeled bicycle, in particular as a movement aid and / or means of transport for the disabled or disabled |
| US6158542A (en) * | 1997-09-25 | 2000-12-12 | Nolet; Leopold L. | Motor-assisted vehicle |
| CN2873618Y (en) * | 2005-10-26 | 2007-02-28 | 孙文彦 | Double side braking device for electric tricycle main shaft |
| CN102826155A (en) * | 2011-06-15 | 2012-12-19 | 苏社芳 | Rear wheel pull rod type travelling crane braking structure for motor tricycle and electric tricycle |
-
2014
- 2014-04-17 CN CN201410168932.7A patent/CN105015685A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2245029Y (en) * | 1995-12-18 | 1997-01-15 | 王建民 | Brake device for tricycle |
| DE29715215U1 (en) * | 1997-08-26 | 1997-11-06 | Reineke, Wolfgang, 46509 Xanten | Three-wheeled bicycle, in particular as a movement aid and / or means of transport for the disabled or disabled |
| US6158542A (en) * | 1997-09-25 | 2000-12-12 | Nolet; Leopold L. | Motor-assisted vehicle |
| CN2873618Y (en) * | 2005-10-26 | 2007-02-28 | 孙文彦 | Double side braking device for electric tricycle main shaft |
| CN102826155A (en) * | 2011-06-15 | 2012-12-19 | 苏社芳 | Rear wheel pull rod type travelling crane braking structure for motor tricycle and electric tricycle |
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Application publication date: 20151104 |
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