CN103481872A - Emergency brake system of trackless vehicle - Google Patents
Emergency brake system of trackless vehicle Download PDFInfo
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- CN103481872A CN103481872A CN201310423325.6A CN201310423325A CN103481872A CN 103481872 A CN103481872 A CN 103481872A CN 201310423325 A CN201310423325 A CN 201310423325A CN 103481872 A CN103481872 A CN 103481872A
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Abstract
The invention discloses an emergency brake system of a trackless vehicle. The emergency brake system comprises a branching fastener, a matching pin, an emergency brake rope, a tension spring, a pressure pad of a chassis pad assembly, a bearing block of the chassis pad assembly, an emergency brake fluid channel of a matching ring fastener, a pressure spring, a pushing hydraulic cylinder, a top pulley, a slide plate, a translation bearing, a pawl, a fork arm, a lower hook, an upper hook, a plate spring, a rocker arm, a shaft structure and the like. A stress end of a parking brake control lever is connected with one end of a main cable, and the other end of the main cable is connected with a main connection point of the branching fastener; the matching ring fastener is configured on the lower surface of the branching fastener in a clinging manner; a connection point of the matching ring fastener is connected with one end of the emergency brake rope on the opposite side of the main connection point of the branching fastener. An output hydraulic pipeline of a main brake cylinder is branched into two channels including a brake fluid channel and an emergency brake fluid channel, and the brake fluid channel is used for conventional braking. An emergency brake execution assembly is mounted on the bearing block of the chassis pad assembly via the shaft structure of the emergency brake execution assembly and is positioned under a chassis structure of a vehicle body.
Description
Technical field
The present invention relates to a kind of free-wheel car emergency braking manipulation-actuating system.
Background technology
Brake system is on vehicle, to use so that extraneous (being mainly road surface) applies certain power in some part of vehicle (being mainly wheel), thereby it is carried out to a series of special arrangements of forced brake to a certain degree.The brake system effect is: the vehicle in making to travel carries out forced deceleration according to the requirement of chaufeur and even stops; Make the vehicle of stagnation of movement (be included on ramp) steadily halt under the different kinds of roads condition; Make the car speed of descent run keep stable.What vehicle was played to brake action can only be to act on vehicle and external force that direction is contrary with vehicle heading, and the size of these external force is all random, uncontrollable, so must install a series of special arrangements on vehicle to realize above-mentioned functions.Existing vehicle braking system generally has two functions, in guaranteeing Vehicle Driving Cycle, can and guarantee by driver requested ramp to stop that vehicle reliably park, and they are called the service brake emergency brake system of unifying.Service braking system is use in driving and handle the system of implementing braking by foot pedals, and drg normally is arranged on all wheel hubs or wheel rim; Braking during standstill be after parking, prevent vehicle smooth and with and pull joystick by hand and handle the system of implementing braking, drg generally is arranged on the transmission shaft after change-speed box or part-time case.The friction that this two function is by tire and road surface comes into force.For unconventional emergency braking, be to occur at once at emergency situation, chaufeur is foot pedals rapidly, and hand is pulled joystick and handled and implement braking.The friction that this mode remains by tire and road surface comes into force, and slides still longlyer, and driver and crew throw before still, do not have emergency effect rapidly, and can cause damage of components, especially before wheel system.Given this, urgently research and develop a kind of free-wheel car emergency braking manipulation-actuating system, not exclusively rely on the friction on tire and road surface and come into force, and can the utmost point in the short time with extremely short coasting distance, realize without before driver and crew, throw rapidly, safety, nondestructively stop.
Summary of the invention
For realize emergency situation rapidly, safety, the harmless parking, the invention provides a kind of free-wheel car emergency braking system.It consists of a minute clasp, fitting pin, emergency braking rope, extension spring, chassis cushion member pressure pad section, chassis cushion member bearing support part, cooperation and-loop fastener emergency braking liquid road, stage clip, pushing tow hydraulic actuating cylinder, top block, slide plate, translation bearing, ratchet, yoke, lower draw-bar, upper hook, leaf spring, rocking arm and axle construction etc.The force side of parking brake lever is connected with an end of main push-towing rope rope, and the other end of main push-towing rope rope connects with the main point of connection of minute clasp and is connected; Below minute clasp, be close to the compound and cooperation and-loop fastener; At the main point of connection offside of minute clasp, coordinate the point of connection of and-loop fastener to be connected with an end of emergency braking rope.The output hydraulic pressure pipeline tap two-way of master brake cylinder, a road is the braking liquid road, in order to conventional brake, another road is emergency braking liquid road.Below the chassis of vehicle body structure, emergency braking is carried out member and is installed on chassis cushion member bearing support part with its axle construction.
The technical solution used in the present invention is:
The free-wheel car emergency braking system is divided into the manipulation link gear and two ones, the mechanism that performs an action is, manoeuvre portion system comprises parking brake lever, main push-towing rope rope, minute clasp, fitting pin, braking during standstill manipulation hawser, the limit rope that resets, draws snap ring, slide opening, emergency braking rope, extension spring, cooperation and-loop fastener, pedal, braking liquid road, master brake cylinder, emergency braking liquid road, stage clip, pushing tow hydraulic actuating cylinder, top block, slide plate, translation bearing, upper hook; Enforcement division system comprises chassis cushion member pressure pad section, chassis cushion member bearing support part, ratchet, yoke, lower draw-bar, leaf spring, rocking arm and axle construction.
The force side of parking brake lever is connected with an end of main push-towing rope rope, and the other end of main push-towing rope rope connects with the main point of connection of minute clasp and is connected; The main point of connection offside that divides clasp, two minutes point of connection of minute clasp connect respectively two braking during standstills and handle hawsers.Below minute clasp, be close to the compound and cooperation and-loop fastener; At the main point of connection offside of minute clasp, coordinate the point of connection of and-loop fastener to be connected with an end of emergency braking rope.
The stress point of pedal is connected with the piston rod of master brake cylinder by rocking bar; The output hydraulic pressure pipeline tap two-way of master brake cylinder, a road is the braking liquid road, in order to conventional brake, another road is emergency braking liquid road, in order to emergency braking.
Below the chassis of vehicle body structure, being close to attaching has chassis cushion member pressure pad section, carries out installation and the work of member in order to emergency braking; The rear pars infrasegmentalis of chassis cushion member pressure pad section is shaped with chassis cushion member bearing support part, in order to emergency braking to be installed, carries out member; Emergency braking is carried out member and is installed on chassis cushion member bearing support part with its axle construction.
Operator's compartment left-front corner at chassis structure is offered a slide opening, in order to smooth, through reset limit rope jam, draws snap ring.
Working process and the kinematic principle of technical solution of the present invention are:
When driving states needs emergent stopping, under chaufeur is swift, step on plate when vehicle, then on pull parking brake lever;
The piston rod pressurized of master brake cylinder, the hydraulic cavities internal pressure liquid of pushing master brake cylinder drives the vehicle conventional brake by the braking liquid road; Simultaneously, by emergency braking liquid road drive move → slide plate on the piston rod → top block of pushing tow hydraulic actuating cylinder be subject to ejection with in the interlock of translation bearing, move → with the logical hole that is linked that coordinates and-loop fastener and divide clasp of wearing of move → fitting pin on the fitting pin of slide plate one;
The main push-towing rope rope is through a series of tensions, tightening process → cooperation and-loop fastener and minute flexible reach of the locked body of clasp formation, and two braking during standstills that are connected with minute clasp are handled hawser while tension, drive vehicle parking; Simultaneously, with the emergency braking rope tension that coordinates and-loop fastener to be connected → emergency braking rope, pull the force side of the force side of upper hook → upper hook to overcome pendulum → upper hook and the release of lower draw-bar dropout → leaf spring stored energy behind the force side of the pulling force forward swing of extension spring → upper hook, bullet is put the emergency braking that is positioned at front part of vehicle vehicle frame below and is carried out member → emergency braking and carry out the member moment bottom, the antagonistic force g of two ratchet contact with road surface → road surfaces of moment of the limit rope tension extensions → emergency braking execution member that resets in contraction state to ratchet
bwith the resistance s of road surface to ratchet
bproduce simultaneously and increase, road surface is the friction force s to front-wheel to the antagonistic force of front-wheel and road surface
wFstart to reduce simultaneously; The antagonistic force g of road surface to ratchet
bwith the resistance s of road surface to ratchet
btransfer make a concerted effort to become the strong point at axle construction strong point O and shift braking force b; Car body inertia power v starts the conicity force consumption that supported point shifts braking force b, car body gravity g
vstart supported point and shift vertical component of braking force b and the road surface antagonistic force g to trailing wheel
wBthe antagonistic force g of move after balance → body gravity starts → road surface to trailing wheel
wBwith the friction force s of road surface to trailing wheel
wBstart conicity force consumption that the supported point of increase → car body inertia power v shifts braking force b simultaneously and be the car body inertia v that makes a concerted effort
c; The car body inertia v that makes a concerted effort
cshift braking force b with the strong point and form again strong point braking b with joint efforts
c, vertical component transferance of this power in occupant gravity center of human body B → make occupant's human body overweight → human body is about the friction drag at seat, i.e. occupant's human body friction f
bstart to increase → consume occupant's human body force of inertia i
b;
If vehicle is carried out before the axle construction of member and two ratchets are subject to respectively to push away and carried out swinging under member with rear resistance → emergency braking and open greatly because inertia continues slide → emergency braking simultaneously, further stretch → Vehicular body front of the limit rope that resets is subject to emergency braking to carry out the axle construction support of member and raise up → vehicle two wheelies and leave the antagonistic force g of road surface → road surface to ratchet
bwith the resistance of road surface to ratchet, further increase, road surface is the friction force s to front-wheel to the antagonistic force of front-wheel and road surface
wFdisappear simultaneously; The antagonistic force g of road surface to ratchet
bwith the resistance s of road surface to ratchet
bthe transfer strong point of making a concerted effort to form at axle construction strong point O shift braking force b and increase; The conicity force that the supported point of car body inertia power v shifts braking force b further consumes, car body gravity g
vvertical component of complete supported some transfer braking force b and the road surface antagonistic force g to trailing wheel
wBthe antagonistic force g of move → road surface to trailing wheel after institute's balance → body gravity is further
wBwith the friction force s of road surface to trailing wheel
wBthe conicity force of the simultaneously further supported some transfer of increases → car body inertia power v braking force b consume and and the car body inertia the become v that makes a concerted effort
cfurther reduce; The car body inertia v that makes a concerted effort
cshift the formed strong point braking of braking force b b with joint efforts with the strong point
cafter increasing also, turn, transferance is in occupant gravity center of human body B; Strong point braking is b with joint efforts
cvertical component b
cvacting on that occupant gravity center of human body B → occupant's human body is overweight → human body is about the friction drag at seat, i.e. occupant's human body friction f
bfurther increase → further consume occupant's human body force of inertia i
b; Strong point braking is b with joint efforts
cconicity force b
chact on occupant gravity center of human body B → consumption occupant human body force of inertia i
b;
Through the transients of above-mentioned man-machine control action and vehicle movement, the powerful inertia power of car body is carried out member by emergency braking and trailing wheel almost exhausts; If vehicle does not continue to slide because inertia exhausts, under emergency braking execution member, swinging is further opened greatly, causes car body further to be faced upward, spacing until the limit rope that resets is straightened; Now the powerful force of inertia of car body is all exhausted by emergency braking execution member and trailing wheel.
After car body inertia power is carried out member and trailing wheel and all exhausted by emergency braking, emergency braking can be removed; Chaufeur is put back to parking brake lever, decontrol again underfooting pedal → vehicle two trailing wheel brake offs, the force side of upper hook is retracted the force side forward swing of rear pendulum → upper hook by extension spring, the supported point of standby lodge → car body shifts the conicity force of braking force b and push up back → move backward → and emergency braking execution member starts backswing, the resistance s of progressively land → road surface of progressively reduce → two front-wheels of angle to ratchet
btwo ratchets of the member of disappearance → emergency braking execution simultaneously loosen;
Chaufeur plucks out the snap ring that draws on the left-front corner slide opening, then pull-up draws the snap ring → limit rope that resets to tighten up;
Chaufeur continues that pull-up draws the limit rope that resets of snap ring → anxiety to drive on ratchet → emergency braking execution member to put and the antagonistic force that overcomes leaf spring progressively resets, on leaf spring accumulation of energy → lower draw-bar side swipe hasp, the accumulation of energy of hook → leaf spring finishes, emergency braking carry out member locate wait to put → vehicle enters state to be driven.
The invention has the beneficial effects as follows:
Take full advantage of existing brake operating mechanism and chassis structure, avoided misoperation and hysteresis motion, without the extra training to driver and crew.Simple in structure, pure physical construction, thereby produce and install easily.Be independent of automotive power, driving system, steering swivel system etc., thereby other functions are had no effect; Supporting role due to emergency braking execution member of the present invention, make the vehicle front-wheel separate with road surface, and the front-wheel while having avoided existing emergency braking and relevant parts and components damage; Simultaneously, car body is faced upward and is made after center of gravity to move, and driver and crew's force of inertia transfers to towards the chassis direction by being parallel to the chassis direction, has avoided throwing before human body.By reversing, make emergency braking carry out the member backswing to failure state, vehicle drops to all tire and road surface contact condition by the state of raising up, then pull-up draws snap ring, makes emergency braking carry out the member backswing to initial condition, and releasing emergency braking method is simple and easy.Emergency braking provided by the invention is once onset, and two front-wheels have broken away from road surface, thereby does not require that the chaufeur both hands are not from bearing circle.
The accompanying drawing explanation
Fig. 1 is system interlink relational structure schematic diagram of the present invention;
Fig. 2 is emergency braking actuating unit mounting structure upward view of the present invention;
Fig. 3 is that emergency braking is carried out the element structure front view;
Fig. 4 is that emergency braking is carried out the element structure birds-eye view;
Fig. 5 is emergency braking initial time state of kinematic motion schematic diagram of the present invention;
The emergency braking that Fig. 6 is emergency braking initial time car body is carried out member assembled shaft strong point state of kinematic motion schematic diagram;
Fig. 7 is emergency braking initial time passenger state of kinematic motion schematic diagram;
Fig. 8 is that emergency braking of the present invention faces end state of kinematic motion schematic diagram constantly;
Fig. 9 is that emergency braking faces the end emergency braking execution member assembled shaft strong point state of kinematic motion schematic diagram of car body constantly;
Figure 10 is that emergency braking faces end passenger's state of kinematic motion schematic diagram constantly;
Fig. 1～5, in 8: 1. parking brake lever, 2. main push-towing rope rope, 3. divide clasp, 4. fitting pin, 5. braking during standstill is handled hawser, 6. limit rope resets, 7. draw snap ring, 8. slide opening, 9. emergency braking rope, 10. extension spring, 11. chassis cushion member pressure pad section, 12. chassis cushion member bearing support part, 13. cooperation and-loop fastener, 14. pedal, 15. braking liquid road, 16. master brake cylinder, 17. emergency braking liquid road, 18. stage clip, 19. pushing tow hydraulic actuating cylinder, 20. top block, 21. slide plate, 22. translation bearing, 23. ratchet, 24. yoke, 25. lower draw-bar, 26. upper hook, 27. leaf spring, 28. rocking arm, 29. axle construction.
In Fig. 2: 30. chassis structures.
In Fig. 5,6,8 and 9: g
bfor the antagonistic force of road surface to ratchet, s
bfor the resistance of road surface to ratchet, g
wFfor the antagonistic force of road surface to front-wheel, s
wFfor the friction force of road surface to front-wheel, O is the axle construction axle construction strong point, and b is that the strong point shifts braking force, and v is car body inertia power, g
vfor car body gravity, g
wBfor the antagonistic force of road surface to trailing wheel, s
wBfor the friction force of road surface to trailing wheel.
In Fig. 6,8 and 9: v
cfor car body inertia power car body inertia is made a concerted effort, b
cfor strong point braking is made a concerted effort.
In Fig. 7,10: i
bfor occupant's human body force of inertia, B is the occupant gravity center of human body, f
bfor occupant's human body friction.
In Figure 10: b
cvfor vertical component, b
chfor conicity force.
The specific embodiment
Organization plan of the present invention:
In the emergency braking actuating unit mounting structure upward view of the present invention shown in the system interlink relational structure schematic diagram of the present invention shown in Fig. 1 and Fig. 2:
The force side of parking brake lever 1 is connected with an end of main push-towing rope rope 2, and the other end of main push-towing rope rope 2 connects with the main point of connection of minute clasp 3 and is connected; The main point of connection offside that divides clasp 3, two minutes point of connection of minute clasp 3 connect respectively two braking during standstills and handle hawsers 5.
The stress point of pedal 14 is connected with the piston rod of master brake cylinder 16 by rocking bar; The output hydraulic pressure pipeline tap two-way of master brake cylinder 16, a road is braking liquid road 15, in order to conventional brake, another road is emergency braking liquid road 17, in order to emergency braking.
The hydraulic cavities of pushing tow hydraulic actuating cylinder 19 is connected in the outlet on emergency braking liquid road 17; The piston rod top of pushing tow hydraulic actuating cylinder 19 is equipped with top block 20, in order to skid pushing tow slide plate 21.Slide plate 21 is structure as a whole with fitting pin 4, and this integrative-structure forms minute clasp 3 and the structure that is linked that coordinates and-loop fastener 13 to coordinate with translation bearing 22, stage clip 18.
Below minute clasp 3, be close to compound and cooperation and-loop fastener 13; At the main point of connection offside of minute clasp 3, coordinate the point of connection of and-loop fastener 13 to be connected with an end of emergency braking rope 9; The other end of emergency braking rope 9 is connected to the force side of hook 26.The force side of upper hook 26 is connected to extension spring 10, spacing in order to guarantee resetting of upper hook 26.
Below chassis of vehicle body structure 30, being close to attaching has chassis cushion member pressure pad section 11, carries out installation and the work of member in order to emergency braking; The rear pars infrasegmentalis of chassis cushion member pressure pad section 11 is shaped with chassis cushion member bearing support part 12, in order to emergency braking to be installed, carries out member; Emergency braking is carried out member and is installed on chassis cushion member bearing support part 12 with its axle construction 29.
Offer a slide opening 8 in the operator's compartment left-front corner of chassis structure, in order to smooth, through reset limit rope 6 jam, draw snap ring 7.
At the emergency braking shown in the system interlink relational structure schematic diagram of the present invention shown in Fig. 1 and Fig. 3,4, carry out in the element structure view: emergency braking is carried out member and is consisted of ratchet 23, the limit rope 6 that resets, yoke 24, lower draw-bar 25, leaf spring 27, rocking arm 28 and axle construction 29.End is puted forth effort in the emergency braking work that ratchet 23 is carried out member for emergency braking, in order to bundle, grabs road surface, produces powerful counteraction braking force; Reset limit rope 6 for the scalable hawser member of large limit for length, after removing at emergency braking, draw snap ring 7 by pull-up, the pull-up emergency braking is carried out member and is resetted, when emergency braking is carried out the member bottom to maximum angle, by the jam that draws snap ring 7 and slide opening 8 and the limit for length of limit rope 6 and spacing; Rocking arm 28 is that emergency braking carries out the structure principal arm beam of member, and its front end is divided into two yokes 24, is equipped with lower draw-bar 25 above front end, in order to upper hook 26 hasps; Rear end is shaped with axle construction 29, and the long tubular axle sleeve cover of itself and rocking arm one has major axis, in order to chassis cushion member bearing support part 12, to form the axle normal-running fiies; In the rear end of rocking arm 28, the front upper side of axle construction 29, being close to attaching has leaf spring 27, in order to the pad in chassis cushion member pressure pad section 11, depresses, and under the work for rocking arm 28, plays accumulation of energy.
Technical scheme working process of the present invention (as Fig. 1～4):
When vehicle when driving states needs emergent stopping, step on plate 14 under chaufeur is swift, then on pull parking brake lever 1;
2. the piston rod pressurized of master brake cylinder 16, push the hydraulic cavities internal pressure liquid of master brake cylinder 16 by braking liquid road 15 driving vehicle conventional brakes; Simultaneously, by emergency braking liquid road 17 drive move → slide plate 21 on the piston rod → top block 20 of pushing tow hydraulic actuating cylinders 19 be subject to ejection with in 22 interlocks of translation bearing, move → with the logical hole that is linked that coordinates and-loop fastener 13 and divide clasp 3 of wearing of move → fitting pin 4 on the fitting pin 4 of slide plate 21 one;
3. main push-towing rope rope 2 is handled 5 while of hawser tension through a series of tensions, tightening process → cooperation and-loop fastener 13 with the flexible reach of the locked body of minute clasp 3 formations, two braking during standstills that are connected with minute clasp 3, drives vehicle parking, simultaneously, pull the force side of the force side of upper hook 26 → above link up with 26 to overcome behind the force side of the pulling force forward swing of extension spring 10 → above link up with 26 put → above to link up with 26 and lower draw-bar 25 dropout → leaf spring 27 stored energies releases with emergency braking rope 9 tensions that coordinate and-loop fastener to be connected → emergency braking rope 9, bullet is put the emergency braking that is positioned at front part of vehicle vehicle frame below and is carried out member → emergency braking and carry out the member moment bottom, carry out two ratchet contact with road surface → (the antagonistic force gs of (referring to Fig. 5～7) road surface to ratchet of 23 moments of member in the limit rope 6 tension extension → emergency brakings that reset of contraction state
bwith the resistance s of road surface to ratchet
bproduce simultaneously and increase, road surface is the friction force s to front-wheel to the antagonistic force of front-wheel and road surface
wFstart to reduce simultaneously, the antagonistic force g of road surface to ratchet
bwith the resistance s of road surface to ratchet
btransfer make a concerted effort to become the strong point at axle construction strong point O and shift braking force b, car body inertia power v starts the conicity force consumption that supported point shifts braking force b, car body gravity g
vstart supported point and shift vertical component of braking force b and the road surface antagonistic force g to trailing wheel
wBthe antagonistic force g of move after balance → body gravity starts → road surface to trailing wheel
wBwith the friction force s of road surface to trailing wheel
wBstart conicity force consumption that the supported point of increase → car body inertia power v shifts braking force b simultaneously and be the car body inertia v that makes a concerted effort
c, the car body inertia v that makes a concerted effort
cshift braking force b with the strong point and form again strong point braking b with joint efforts
c, vertical component transferance of this power in occupant gravity center of human body B → make occupant's human body overweight → human body is about the friction drag at seat, i.e. occupant's human body friction f
bstart to increase → consume occupant's human body force of inertia i
b),
4. if vehicle is carried out before the axle construction 29 of member and two ratchets 23 are subject to respectively to push away and is carried out swinging under member with rear resistance → emergency braking and open greatly because inertia continues slide → emergency braking simultaneously, reset limit rope 6 further stretchings → Vehicular body front be subject to axle construction 29 supports of emergency braking execution member and raise up → vehicle two wheelies and leave road surface → (the antagonistic force g of (referring to Fig. 5,8～10) road surface to ratchet
bwith the resistance of road surface to ratchet, further increase, road surface is the friction force s to front-wheel to the antagonistic force of front-wheel and road surface
wFdisappear simultaneously; The antagonistic force g of road surface to ratchet
bwith the resistance s of road surface to ratchet
bthe transfer strong point of making a concerted effort to form at axle construction strong point O shift braking force b and increase; The conicity force that the supported point of car body inertia power v shifts braking force b further consumes, car body gravity g
vvertical component of complete supported some transfer braking force b and the road surface antagonistic force g to trailing wheel
wBthe antagonistic force g of move → road surface to trailing wheel after institute's balance → body gravity is further
wBwith the friction force s of road surface to trailing wheel
wBthe conicity force of the simultaneously further supported some transfer of increases → car body inertia power v braking force b consume and and the car body inertia the become v that makes a concerted effort
cfurther reduce; The car body inertia v that makes a concerted effort
cshift the formed strong point braking of braking force b b with joint efforts with the strong point
cafter increasing also, turn, transferance is in occupant gravity center of human body B; Strong point braking is b with joint efforts
cvertical component b
cvacting on that occupant gravity center of human body B → occupant's human body is overweight → human body is about the friction drag at seat, i.e. occupant's human body friction f
bfurther increase → further consume occupant's human body force of inertia i
b; Strong point braking is b with joint efforts
cconicity force b
chact on occupant gravity center of human body B → consumption occupant human body force of inertia i
b);
5. through the transients of above-mentioned man-machine control action and vehicle movement, the powerful inertia power of car body is carried out member by emergency braking and trailing wheel almost exhausts; If vehicle does not continue to slide because inertia exhausts, under emergency braking execution member, swinging is further opened greatly, causes car body further to be faced upward, spacing until the limit rope 6 that resets is straightened; Now the powerful force of inertia of car body is all exhausted by emergency braking execution member and trailing wheel.
6., after car body inertia power is carried out member and trailing wheel and all exhausted by emergency braking, emergency braking can be removed; Chaufeur is put back to parking brake lever 1, decontrol again underfooting pedal 14 → vehicle two trailing wheel brake offs, the force side of upper hook 26 is retracted rear pendulum → above link up with 26 force side forward swing by extension spring 10, standby lodge → (the supported point of (referring to Fig. 8) car body shifts the conicity force of braking force b and push up back → move backward → and emergency braking execution member starts backswing, the resistance s of progressively land → road surface of progressively reduce → two front-wheels of angle to ratchet
btwo ratchets 23 of the member of disappearance → emergency braking execution simultaneously loosen);
7. chaufeur plucks out and draws snap ring 7 on left-front corner slide opening 8, then pull-up draws the snap ring 7 → limit rope 6 that resets to tighten up;
8. chaufeur continues that pull-up draws the limit rope 6 that resets of snap ring 7 → anxiety to drive on ratchet 23 → emergency brakings execution members to put and the antagonistic force that overcomes leaf spring 27 progressively resets, link up with 27 accumulation of energys of 26 → leaf spring on leaf spring 27 accumulation of energys → lower draw-bar 25 side swipes hasp and finish, emergency braking carry out member locate wait to put → vehicle enters state to be driven.
Beneficial effect of the present invention:
1. take full advantage of existing brake operating mechanism and chassis structure, avoided misoperation and hysteresis motion, and do not needed driver and crew are done to extra training;
2. simple in structure, pure physical construction, thereby production is installed easily;
3. be independent of automotive power, driving system, steering swivel system etc., thereby other functions are had no effect;
4. carry out the supporting role of member due to emergency braking of the present invention, the vehicle front-wheel is separated with road surface, the front-wheel while having avoided existing emergency braking and relevant parts and components damage; Simultaneously, car body is faced upward and is made after center of gravity to move, and driver and crew's force of inertia transfers to towards the chassis direction by being parallel to the chassis direction, has avoided throwing before human body.
5. by reversing, make emergency braking carry out the member backswing to failure state, vehicle drops to all tire and road surface contact condition by the state of raising up, then pull-up draws snap ring 7, makes emergency braking carry out the member backswing to initial condition, and releasing emergency braking method is simple and easy.
6. emergency braking provided by the invention is once onset, and two front-wheels have broken away from road surface, thereby does not require that the chaufeur both hands are not from bearing circle.
Claims (6)
1. a free-wheel car emergency braking system, be to form by handling link gear with two ones, the mechanism that performs an action, and it is characterized in that:
Manoeuvre portion system comprises parking brake lever, main push-towing rope rope, minute clasp, fitting pin, braking during standstill manipulation hawser, the limit rope that resets, draws snap ring, slide opening, emergency braking rope, extension spring, cooperation and-loop fastener, pedal, braking liquid road, master brake cylinder, emergency braking liquid road, stage clip, pushing tow hydraulic actuating cylinder, top block, slide plate, translation bearing, upper hook; Enforcement division system comprises chassis cushion member pressure pad section, chassis cushion member bearing support part, ratchet, yoke, lower draw-bar, leaf spring, rocking arm and axle construction.
The force side of parking brake lever is connected with an end of main push-towing rope rope, and the other end of main push-towing rope rope connects with the main point of connection of minute clasp and is connected; The main point of connection offside that divides clasp, two minutes point of connection of minute clasp connect respectively two braking during standstills and handle hawsers.Below minute clasp, be close to the compound and cooperation and-loop fastener; At the main point of connection offside of minute clasp, coordinate the point of connection of and-loop fastener to be connected with an end of emergency braking rope;
The stress point of pedal is connected with the piston rod of master brake cylinder by rocking bar; The output hydraulic pressure pipeline tap two-way of master brake cylinder, a road is the braking liquid road, in order to conventional brake, another road is emergency braking liquid road, in order to emergency braking;
Below the chassis of vehicle body structure, being close to attaching has chassis cushion member pressure pad section, carries out installation and the work of member in order to emergency braking; The rear pars infrasegmentalis of chassis cushion member pressure pad section is shaped with chassis cushion member bearing support part, in order to emergency braking to be installed, carries out member; Emergency braking is carried out member and is installed on chassis cushion member bearing support part with its axle construction;
Operator's compartment left-front corner at chassis structure is offered a slide opening, in order to smooth, through reset limit rope jam, draws snap ring.
2. according to the free-wheel car emergency braking system shown in claim 1, it is characterized in that: below minute clasp (3), be close to compound and cooperation and-loop fastener (13); At the main point of connection offside of minute clasp (3), coordinate the point of connection of and-loop fastener (13) to be connected with an end of emergency braking rope (9); The other end of emergency braking rope (9) is connected to the force side of hook (26).The force side of upper hook (26) is connected to extension spring (10), spacing in order to guarantee resetting of upper hook 26.
3. according to the free-wheel car emergency braking system shown in claim 1, it is characterized in that: emergency braking is carried out member and is consisted of ratchet (23), the limit rope that resets (6), yoke (24), lower draw-bar (25), leaf spring (27), rocking arm (28) and axle construction (29).
4. according to the free-wheel car emergency braking system shown in claim 1 or 3, it is characterized in that: end is puted forth effort in the emergency braking work that ratchet (23) is carried out member for emergency braking, in order to bundle, grabs road surface, produces powerful counteraction braking force; The limit rope (6) that resets is the scalable hawser member of large limit for length, after removing at emergency braking, draw snap ring (7) by pull-up, the pull-up emergency braking is carried out member and is resetted, when emergency braking is carried out the member bottom to maximum angle, by the jam that draws snap ring (7) and slide opening (8) and the limit for length of limit rope (6) and spacing; Rocking arm (28) is that emergency braking carries out the structure principal arm beam of member, and its front end is divided into two yokes (24), is equipped with lower draw-bar (25) above front end, in order to upper hook (26) hasp; Rear end is shaped with axle construction (29), and the long tubular axle sleeve cover of itself and rocking arm one has major axis, in order to chassis cushion member bearing support part (12), to form the axle normal-running fit; Rear end in rocking arm (28), the front upper side of axle construction (29), being close to attaching has leaf spring (27), in order to the pad in chassis cushion member pressure pad section (11), depresses, and under the work for rocking arm (28), plays accumulation of energy.
5. according to the free-wheel car emergency braking system shown in claim 1 or 3, it is characterized in that:
When driving states needs emergent stopping, under chaufeur is swift, step on plate 14 when vehicle, then on pull parking brake lever 1;
The piston rod pressurized of master brake cylinder 16, the hydraulic cavities internal pressure liquid of pushing master brake cylinder 16 drives the vehicle conventional brake by braking liquid road 15; Simultaneously, by emergency braking liquid road 17 drive move → slide plate 21 on the piston rod → top block 20 of pushing tow hydraulic actuating cylinders 19 be subject to ejection with in 22 interlocks of translation bearing, move → with the logical hole that is linked that coordinates and-loop fastener 13 and divide clasp 3 of wearing of move → fitting pin 4 on the fitting pin 4 of slide plate 21 one;
Main push-towing rope rope 2 is handled 5 while of hawser tension through a series of tensions, tightening process → cooperation and-loop fastener 13 with the flexible reach of the locked body of minute clasp 3 formations, two braking during standstills that are connected with minute clasp 3, drives vehicle parking; Simultaneously, pull the force side of the force side of upper hook 26 → above link up with 26 to overcome behind the force side of the pulling force forward swing of extension spring 10 → above link up with 26 put → above to link up with 26 and lower draw-bar 25 dropout → leaf spring 27 stored energies releases with emergency braking rope 9 tensions that coordinate and-loop fastener to be connected → emergency braking rope 9, bullet is put the emergency braking that is positioned at front part of vehicle vehicle frame below and is carried out member → emergency braking and carry out the member moment bottom, the antagonistic force g of two ratchet contact with road surface → road surfaces of 23 moments of the limit rope 6 tension extensions → emergency brakings execution members that reset in contraction state to ratchet
bwith the resistance s of road surface to ratchet
bproduce simultaneously and increase, road surface is the friction force s to front-wheel to the antagonistic force of front-wheel and road surface
wFstart to reduce simultaneously; The antagonistic force g of road surface to ratchet
bwith the resistance s of road surface to ratchet
btransfer make a concerted effort to become the strong point at axle construction strong point O and shift braking force b; Car body inertia power v starts the conicity force consumption that supported point shifts braking force b, car body gravity g
vstart supported point and shift vertical component of braking force b and the road surface antagonistic force g to trailing wheel
wBthe antagonistic force g of move after balance → body gravity starts → road surface to trailing wheel
wBwith the friction force s of road surface to trailing wheel
wBstart conicity force consumption that the supported point of increase → car body inertia power v shifts braking force b simultaneously and be the car body inertia v that makes a concerted effort
c; The car body inertia v that makes a concerted effort
cshift braking force b with the strong point and form again strong point braking b with joint efforts
c, vertical component transferance of this power in occupant gravity center of human body B → make occupant's human body overweight → human body is about the friction drag at seat, i.e. occupant's human body friction f
bstart to increase → consume occupant's human body force of inertia i
b;
If vehicle is carried out before the axle construction 29 of member and two ratchets 23 are subject to respectively to push away and is carried out swinging under member with rear resistance → emergency braking and open greatly because inertia continues slide → emergency braking simultaneously, reset limit rope 6 further stretchings → Vehicular body front be subject to axle construction 29 supports of emergency braking execution member and raise up → vehicle two wheelies and leave the antagonistic force g of road surface → road surface to ratchet
bwith the resistance of road surface to ratchet, further increase, road surface is the friction force s to front-wheel to the antagonistic force of front-wheel and road surface
wFdisappear simultaneously; The antagonistic force g of road surface to ratchet
bwith the resistance s of road surface to ratchet
bthe transfer strong point of making a concerted effort to form at axle construction strong point O shift braking force b and increase; The conicity force that the supported point of car body inertia power v shifts braking force b further consumes, car body gravity g
vvertical component of complete supported some transfer braking force b and the road surface antagonistic force g to trailing wheel
wBthe antagonistic force g of move → road surface to trailing wheel after institute's balance → body gravity is further
wBwith the friction force s of road surface to trailing wheel
wBthe conicity force of the simultaneously further supported some transfer of increases → car body inertia power v braking force b consume and and the car body inertia the become v that makes a concerted effort
cfurther reduce; The car body inertia v that makes a concerted effort
cshift the formed strong point braking of braking force b b with joint efforts with the strong point
cafter increasing also, turn, transferance is in occupant gravity center of human body B; Strong point braking is b with joint efforts
cvertical component b
cvacting on that occupant gravity center of human body B → occupant's human body is overweight → human body is about the friction drag at seat, i.e. occupant's human body friction f
bfurther increase → further consume occupant's human body force of inertia i
b; Strong point braking is b with joint efforts
cconicity force b
chact on occupant gravity center of human body B → consumption occupant human body force of inertia i
b;
Through the transients of above-mentioned man-machine control action and vehicle movement, the powerful inertia power of car body is carried out member by emergency braking and trailing wheel almost exhausts; If vehicle does not continue to slide because inertia exhausts, under emergency braking execution member, swinging is further opened greatly, causes car body further to be faced upward, spacing until the limit rope 6 that resets is straightened; Now the powerful force of inertia of car body is all exhausted by emergency braking execution member and trailing wheel.
After car body inertia power is carried out member and trailing wheel and all exhausted by emergency braking, emergency braking can be removed; Chaufeur is put back to parking brake lever 1, decontrol again underfooting pedal 14 → vehicle two trailing wheel brake offs, the force side of upper hook 26 is retracted rear pendulum → above link up with 26 force side forward swing by extension spring 10, the supported point of standby lodge → car body shifts the conicity force of braking force b and push up back → move backward → and emergency braking execution member starts backswing, the resistance s of progressively land → road surface of progressively reduce → two front-wheels of angle to ratchet
btwo ratchets 23 of the member of disappearance → emergency braking execution simultaneously loosen;
Chaufeur plucks out and draws snap ring 7 on left-front corner slide opening 8, then pull-up draws the snap ring 7 → limit rope 6 that resets to tighten up;
Chaufeur continues that pull-up draws the limit rope 6 that resets of snap ring 7 → anxiety to drive on ratchet 23 → emergency brakings execution members to put and the antagonistic force that overcomes leaf spring 27 progressively resets, link up with 27 accumulation of energys of 26 → leaf spring on leaf spring 27 accumulation of energys → lower draw-bar 25 side swipes hasp and finish, emergency braking carry out member locate wait to put → vehicle enters state to be driven.
6. according to the free-wheel car emergency braking system shown in claim 1, it is characterized in that: do not change the existing emergency braking maneuverability pattern of vehicle, without the extra training to driver and crew.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423325.6A CN103481872B (en) | 2013-09-16 | 2013-09-16 | A kind of free-wheel car emergency braking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423325.6A CN103481872B (en) | 2013-09-16 | 2013-09-16 | A kind of free-wheel car emergency braking system |
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| Publication Number | Publication Date |
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| CN103481872A true CN103481872A (en) | 2014-01-01 |
| CN103481872B CN103481872B (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310423325.6A Active CN103481872B (en) | 2013-09-16 | 2013-09-16 | A kind of free-wheel car emergency braking system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB277195A (en) * | 1926-11-16 | 1927-09-15 | Thomas Gasson | Improvements in and connected with emergency braking devices for road vehicles |
| US4133414A (en) * | 1977-05-23 | 1979-01-09 | Fukuzo Ushitani | Device for emergency braking and preventing an automobile from slipping sideways |
| CN2222654Y (en) * | 1993-02-18 | 1996-03-20 | 赵贵良 | High-efficiency brake directly on road for motor vehicle |
| CN2438630Y (en) * | 2000-09-02 | 2001-07-11 | 王文锡 | Emergency brake of vehicle |
| CN2673746Y (en) * | 2003-05-17 | 2005-01-26 | 王文锡 | Vehicle danger avoidance brake |
| GB2470229A (en) * | 2009-05-15 | 2010-11-17 | Bndean Abdulkadir Omer | Additional vehicle braking system |
| JP2013018407A (en) * | 2011-07-12 | 2013-01-31 | Chunichi Sangyo Kk | Brake device for truck |
-
2013
- 2013-09-16 CN CN201310423325.6A patent/CN103481872B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB277195A (en) * | 1926-11-16 | 1927-09-15 | Thomas Gasson | Improvements in and connected with emergency braking devices for road vehicles |
| US4133414A (en) * | 1977-05-23 | 1979-01-09 | Fukuzo Ushitani | Device for emergency braking and preventing an automobile from slipping sideways |
| CN2222654Y (en) * | 1993-02-18 | 1996-03-20 | 赵贵良 | High-efficiency brake directly on road for motor vehicle |
| CN2438630Y (en) * | 2000-09-02 | 2001-07-11 | 王文锡 | Emergency brake of vehicle |
| CN2673746Y (en) * | 2003-05-17 | 2005-01-26 | 王文锡 | Vehicle danger avoidance brake |
| GB2470229A (en) * | 2009-05-15 | 2010-11-17 | Bndean Abdulkadir Omer | Additional vehicle braking system |
| JP2013018407A (en) * | 2011-07-12 | 2013-01-31 | Chunichi Sangyo Kk | Brake device for truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103481872B (en) | 2015-10-07 |
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Effective date of registration: 20171102 Address after: 226600 Nanyang village, Haian Development Zone, Jiangsu, Nantong province 3 Patentee after: Jiangsu Shenxiang Electromechanical Co., Ltd. Address before: No. 1800 road 214122 Jiangsu Lihu Binhu District of Wuxi City, Jiangnan University College of things Patentee before: Jiangnan University |
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Address after: 226600 Nanyang village, Haian Development Zone, Nantong City, Jiangsu Province, 3 Patentee after: Jiangsu Shenxiang electromechanical Co., Ltd Address before: 226600 Nanyang village, Haian Development Zone, Nantong City, Jiangsu Province, 3 Patentee before: JIANGSU SHENXIANG ELECTROMECHANICAL Co.,Ltd. |