CN1088528A - Automobile emergency braking device - Google Patents
Automobile emergency braking device Download PDFInfo
- Publication number
- CN1088528A CN1088528A CN 92113825 CN92113825A CN1088528A CN 1088528 A CN1088528 A CN 1088528A CN 92113825 CN92113825 CN 92113825 CN 92113825 A CN92113825 A CN 92113825A CN 1088528 A CN1088528 A CN 1088528A
- Authority
- CN
- China
- Prior art keywords
- automobile
- negative pressure
- emergency braking
- brake
- vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
Automobile emergency braking device of the present invention, be on the former brake system of automobile basis, one cover is installed on automobile chassis frame center of gravity position can be directly and road friction (static friction is main), the pressure that is produced with negative pressure brake bottom inner and outer air pressure difference and form the device of braking force.It is made up of control system, negative pressure source system, negative pressure brake and Lift Part.Make automobile when emergency braking, have two braking force sources,, shorten stopping distance to improve the emergency braking effect of automobile.Just in case when the former brake-system failure of automobile, this device still can produce braking force, thereby further improves the travel safety of automobile simultaneously.Secondly this device reaches result of use the best on more smooth pitch and the cement concrete road at automobile below 6 tons.
Description
The invention belongs to auto brake system.
Auto brake system is through producing the device that braking force stops operating wheel at present, and the friction force between tire and the road (can determine with friction coefficient) has limited the maximum braking potential of vehicle, especially automobile carries out emergency braking under the higher speed of a motor vehicle, owing to the raising along with the speed of a motor vehicle of the friction coefficient of tire-road diminishes, it is more undesirable that braking effect becomes.Along with the raising of automobile limit speed, the requirement of automobile brake perfrmance is also being improved constantly, therefore press for and formulate out dynamical, reliable and stable brake system.
The objective of the invention is to improve the maximum braking potential of automobile when emergency braking, shorten the stopping distance of automobile, improve the emergency braking effect of automobile when the speed of a motor vehicle is higher, just in case when the former brake-system failure of automobile, this device still makes automobile have braking potential simultaneously.
Main points of the present invention are on former auto brake system basis, on automobile chassis frame, overlap the direct and road friction (static friction is main) of energy by adorning one, the pressure that is produced with negative pressure brake bottom inner and outer air pressure difference and form the device of braking force, the position is in the center of gravity position of automobile, can not change the total braking force allocation proportion of former brake system like this, its working process and principle are, during emergency braking: the chaufeur left foot is stepped on dead-man pedal, open emergency braking apparatus master cock and lifting Locking Device by the connecting rod parts, this moment, air entered chamber on the afterburning air chamber of vacuum servo lifter through fil and master cock, the special negative pressure case communicates with chamber under this reinforcing air chamber through master cock, on, antagonistic force when the product of following chamber draught head and effective diaphragm area deducts length of spring compressed, be exactly the thrust of afterburning air chamber, then the push rod parts promote negative pressure brake immediately and descend and to land.The negative pressure brake mobile jib at first makes the former drg braking of automobile, disengaging of clutch with the parts that are connected of the former control system of automobile simultaneously, and the automotive engine throttle gate is opened greatly, and horsepower output improves.The afterburning air chamber of control system in the planet circular system power-transfer clutch on next reciprocating vacuum pump, its upper and lower chamber pressure reduction after master cock communicates disappears, and external contracting drum brake is braked under the spring device effect, i.e. planet circular system power-transfer clutch associating, vacuum pump work.It is worst after negative pressure brake lands, its antagonistic force heightens, the push rod parts promote the drive link upward movement (casing propelling thrust be about vacuum valve master cock tripping force 70%) in the vacuum valve master cock again, through there is the sheath steel rope to make the vacuum guiding valve also move (unlatching) thereupon, vacuum pump through negative pressure system and nylon leaching net to casing bottom continuous air extraction, in rubber plate washer and hairbrush are then gone into rectangular seal bar blocks air together and foreign material, thereby make the instantaneous generation negative pressure of casing bottom, the product of its draught head and bottom payload space is exactly the pressure of negative pressure brake, at last by in the negative pressure brake with the road direct friction, and can be adjusted to braking crawler belt based on static friction, make negative pressure brake produce braking force, and be delivered on the automobile by mobile jib and mobile jib support, thereby automobile has two braking force sources, to improve braking performance of automobile, the negative pressure brake working process does not rely on former auto brake system simultaneously, so just in case when the former braking troubles of automobile, it still can produce braking force.When emergency braking was removed: the chaufeur pine went dead-man pedal, under the clutch pedal retrun spring tension, close the emergency braking apparatus master cock, afterburning air chamber communicates through master cock the chamber up and down in the vacuum servo lifter at this moment, pressure reduction disappears, thrust also disappears thereupon downwards, push rod rises under the pull back spring effect, vacuum valve master cock pulling force disappears, make vacuum valve also under the pull back spring effect, reset (closing), negative pressure brake bottom negative pressure disappears, and under former drg of automobile and clutch retraction springs effect, (can add pull back spring in case of necessity), make negative pressure brake rising return by former connection parts, and pinned by the lifting Locking Device, this moment, automobile brake was removed.Reciprocating vacuum pump returns to automatic control state simultaneously, and the negative pressure value of negative pressure system is remained within the control area.More than constitute a complete whole automobile emergency braking device, it reaches result of use the best on more smooth pitch and the cement concrete road at load carrying ability automobile below 6 tons.
Accompanying drawing 1 is the present invention, automobile emergency braking device control system scheme drawing.
Accompanying drawing 2 is the present invention, and the automobile emergency braking device negative pressure brake is connected the parts scheme drawing with the former control system of automobile.
Accompanying drawing 3 is the present invention, the negative pressure brake of automobile emergency braking device and vacuum servo lifter constructional drawing.
Accompanying drawing 4 is the present invention, the double acting twin-cylinder reciprocating vacuum pump constructional drawing of automobile emergency braking device.
Accompanying drawing 5 is the present invention, negative pressure system scheme drawing in the automobile emergency braking device.
Accompanying drawing 1 is made up of parts such as pedal and drive disk assembly, emergency braking apparatus master cock (hereinafter to be referred as master cock) and lifting Locking Devices.Pedal is located at the left end of automobile cab, and the mode of position and pedal is all different with pedal of clutch, is exempted from chaufeur to misapply in operation, and an end of push rod and pull bar all is shaped on the length adjustment screw thread, constitutes the system that can produce pulling force.Master cock is by housing, drive link, and parts such as piston and push rod are formed, and are shaped on 5 connectors on the housing, and joint 1 is connected with the special negative pressure case; The chamber is connected under the afterburning air chamber of joint 2 and vacuum servo lifter; The chamber is connected with chamber under the afterburning air chamber of vacuum pump robot control system(RCS) on joint 3 and this reinforcing air chamber; Joint 4 is connected with general negative pressure box; In joint 5 and the driving engine on the afterburning air chamber of airfilter and vacuum pump robot control system(RCS) the chamber is connected (leading to atmosphere).When master cock is opened: transmission device pulling drive link, through push rod piston is descended, joint 1.2 intercommunications this moment, joint 3.5 intercommunications, joint 4 is obstructed.When master cock was closed: the drive link pulling force disappeared, and piston resets under the pull back spring effect, joint 2.3.4 intercommunication this moment, and joint 1.5 is all obstructed.The lifting Locking Device is made up of parts such as transmission device, jam plate, tapered ends, and jam plate is fixed on the mobile jib support, is connected with the spring hinge with tapered end, but can only up turns over.When unblanking: transmission device makes left and right sides jam plate all toward external-open, and tapered end breaks away from lockhole on the mobile jib, and mobile jib can lifting.During pinning: the transmission device pulling force disappears, and jam plate resets under action of the spring, rises to when contact with tapered end at mobile jib, turns on the tapered end, and mobile jib puts afterwards that tapered end enters lockhole automatically in place.
Accompanying drawing 2 is by steel rope and sheath, the sheath adapter plate, parts such as pulley are formed, the sheath two ends all are fixed on above the sheath adapter plate, the sheath adapter plate is separately fixed on the vehicle frame and goes here and there on the autoclutch pull bar, plus-minus screw can be finely tuned rope capacity, steel rope (about end each one) was gone here and there steel rope sheath one end respectively and was fixed on the brake pedal bottom bar, the other end is fixed on the mobile jib through pulley, drop at omnidistance 2/3 o'clock in negative pressure brake, lineoutofservice signal pull on the mobile jib makes the car side brake braking, disengaging of clutch, the residue distance is then compressed the spring on the power-transfer clutch mobile jib, drive engine air throttle connecting rod (not drawing among the figure), improve engine power.
Accompanying drawing 3 is made up of parts such as vacuum servo lifter and negative pressure brake.The afterburning air chamber 1 usefulness diaphragm of vacuum servo lifter is divided into lower chamber, and all be connected with master cock with pipeline, the central authorities of diaphragm tighten together through parts such as pallet and push rod, the lower surface of afterburning air chamber is fixed on special-purpose iron plate going up (not drawing among the figure) with screw, this plate is fixed on the vehicle frame again, push rod is connected with negative pressure brake by lever parts 2, and its relevant technologies data are seen attached list.Negative pressure brake is made up of parts such as casing 3, vacuum guiding valve 4, vacuum valve master cock 5, nylon leaching net 6, rectangular rubber sealing band 7, sealing band clamping plate 8, steel spring 9, friction crawler belt 10, mobile jib 11, mobile jib supports 12.Case spare is welded with 5～6mm steel plate, the dividing plate upper strata is a negative pressure box, lower floor with screw fixing vacuum guiding valve 4, vacuum valve master cock 5, nylon leaching net 6 and steel spring 9, front end is being fixed hairbrush and rubber plate washer with screw, rectangular rubber sealing band 7 selects that hardness is low, elasticity is high for use and distortion recovers fast rubber size (as 1140 natural rubber sizing materials) and makes, and sealed clamping plate 8 of adhesive and lead-in are fixed on case spare 3 with screw bottom is coated in the upper end.An auxiliary spring stainless steel strut is respectively being riveted on the both sides of case spare, be connected with mobile jib 11 by spring plate, mobile jib support 12 is riveted on below the vehicle frame, friction crawler belt 10 selects for use hardness height, rubber size (as the butyl rubber sizing material) that friction coefficient is big to make, its inside, upper surface is serving as a contrast cord, and went here and there the casing passage, two ends are connected below the steel spring 9 with hinge, the braking clamping plate of casing upper end are being controlled the motion of the crawler belt that rubs, landing ground is shaped on 3 longitudinal furrow decorative patterns (not drawing among the figure), and its relevant technologies data are seen attached list.
Accompanying drawing 4 is made up of double acting twin-cylinder reciprocating extraction sector, guiding valve valve mechanism and transmission device, it is installed on the vacant position of vehicle frame, driving engine back, while is low according to this pump frequency of utilization, stream time short and light characteristics are made every effort in deadweight, saved cooling system, and multiselect is made with light material.Double acting twin-cylinder reciprocating extraction sector is made up of parts such as cylinder, front and back cylinder head, piston and seal ring, push rods, it is by the crank motion of piston, make the working cycle of carrying out suction and discharge in the cylinder left and right sides chamber repeatedly, up to by taken out reach set pressure in the container till.The guiding valve valve mechanism is made up of parts such as housing, plane guiding valve, joystick and Locking Devices, housing is separately fixed on the gas tube orifice in left and right sides chamber with screw, self-locking device is equipped with a screw spring and a steel ball in the guiding valve endoporus of plane, on the housing plane, have two Baltimore grooves, steel ball is pressed in the Baltimore groove by spring, the plane guiding valve can not be moved voluntarily, can only under joystick side-to-side movement effect, intermittently move, the suction and discharge process of control pump, and make the instantaneous connection in cylinder both sides, reach balance suction and discharge lateral pressure, improve the purpose of exhaust capacity.Transmission device is by casing, spur bevel gear, connecting rod, parts such as planet circular system power-transfer clutch and control parts are formed, planet circular system power-transfer clutch (not drawing structure among the figure) is contained in the casing 1, its little sun gear is through transmission shaft, bearing, universal-joint is connected with belt with the front of the engine shaft upper pulley with belt pulley, planetary wheel is through tie-rod, transmission shaft, bearing is connected with driving gear in the spur bevel gear, big sun gear is controlled by external contracting drum brake, at the external contracting drum brake glancing impact, big sun gear does not rotate, little sun gear rotates and forces planetary wheel to drive the tie-rod rotation in rotation, be antero posterior axis associating (and deceleration), pump is reciprocating under the effect of drive disk assemblies such as connecting rod, otherwise at external contracting drum brake glancing impact not, big sun gear can rotate with little sun gear, then the commentaries on classics of planet tooth does not drive tie-rod and rotates i.e. antero posterior axis separation.Secondly external contracting drum brake is controlled by miniature vacuum thrust device, its structure and vacuum servo lifter are basic identical, the chamber draught head is less than prescribing a time limit under the definite value about its afterburning air chamber, external contracting drum brake is braked under the spring device effect, otherwise draught head is greater than prescribing a time limit on the definite value, push rod thrust surpasses the spring device pulling force, and drg is not braked, thereby constitutes a robot control system(RCS).A manual control pull bar is set in addition again, just uses when automobile engine starting, and load onto cover at running part, make Transmissions such as piston push rod and connecting rod not expose (all not drawing among the figure), its relevant technologies data are seen attached list.
Accompanying drawing 5 is made up of parts such as general negative pressure box, special negative pressure case, one-way valve.1,2 joints in the general negative pressure box are connected with the induction opening of vacuum pump, and 3,4 joints are connected with negative pressure box joint in the negative pressure brake by corrugated hose, and joint 6 is connected with master cock joint 4.Special negative pressure case joint 5 is connected with master cock joint 1, and the special negative pressure case is connected with general negative pressure box with one-way valve through pipeline, makes the special negative pressure case can have more stable negative pressure value, and its relevant technologies data are seen attached list.
The automobile emergency braking device technical data sheet
Claims (4)
1, a kind of automobile emergency braking device of forming by negative pressure brake system and the former brake system of automobile, it is characterized in that on the former brake system of automobile basis, on the frame mass centre position, overlap the direct and road friction of energy by adorning one, the pressure that is produced with negative pressure brake bottom inner and outer air pressure difference and form braking force, and by mobile jib and mobile jib support with the device of brake-force transmission to the automobile.
2,, it is characterized in that switching by control negative pressure brake lifting of vacuum servo lifter and vacuum guiding valve according to the described automobile emergency braking device of claim 1.
3, according to claim 1,2 described automobile emergency braking devices, it is characterized in that making negative pressure brake bottom and vacuum servo lifter produce draught head by double acting twin-cylinder reciprocating vacuum pump and vacuum system, and be provided with automatic control component, the negative pressure value of negative pressure system is remained within the control area.
4,, it is characterized in that by emergency braking apparatus master cock and the special-purpose pedal control that is installed in the operator's compartment left side according to claim 2,3 described automobile emergency braking devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113825 CN1088528A (en) | 1992-12-20 | 1992-12-20 | Automobile emergency braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113825 CN1088528A (en) | 1992-12-20 | 1992-12-20 | Automobile emergency braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088528A true CN1088528A (en) | 1994-06-29 |
Family
ID=4946612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113825 Pending CN1088528A (en) | 1992-12-20 | 1992-12-20 | Automobile emergency braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088528A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000044599A1 (en) * | 1999-01-28 | 2000-08-03 | Hezhang Chen | A vacuum brake for emergency stops |
| CN105398435A (en) * | 2015-11-27 | 2016-03-16 | 吉林大学 | Auxiliary emergency braking system applied to heavy tractor semi-trailer |
| CN110039518A (en) * | 2019-03-21 | 2019-07-23 | 北京精密机电控制设备研究所 | Exoskeleton robot is lifted in a kind of upper limb electromechanics power-assisted lift to move |
| CN113830046A (en) * | 2021-10-29 | 2021-12-24 | 福州大学 | Efficient braking system based on heavy-duty truck and working method thereof |
-
1992
- 1992-12-20 CN CN 92113825 patent/CN1088528A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000044599A1 (en) * | 1999-01-28 | 2000-08-03 | Hezhang Chen | A vacuum brake for emergency stops |
| CN105398435A (en) * | 2015-11-27 | 2016-03-16 | 吉林大学 | Auxiliary emergency braking system applied to heavy tractor semi-trailer |
| CN105398435B (en) * | 2015-11-27 | 2018-10-23 | 吉林大学 | A kind of Emergency Brake Assist System applied to heavy semi-trailer |
| CN110039518A (en) * | 2019-03-21 | 2019-07-23 | 北京精密机电控制设备研究所 | Exoskeleton robot is lifted in a kind of upper limb electromechanics power-assisted lift to move |
| CN110039518B (en) * | 2019-03-21 | 2021-04-13 | 北京精密机电控制设备研究所 | Upper limb electromechanical power-assisted lifting exoskeleton robot |
| CN113830046A (en) * | 2021-10-29 | 2021-12-24 | 福州大学 | Efficient braking system based on heavy-duty truck and working method thereof |
| CN113830046B (en) * | 2021-10-29 | 2022-06-21 | 福州大学 | Efficient braking system based on heavy-duty truck and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1243653C (en) | Vehicle hydraulic braking systrem with at active simulator | |
| CN205185866U (en) | Separation and reunion and braking system of road roller | |
| CN1088528A (en) | Automobile emergency braking device | |
| CN101574929B (en) | Dual-function braking device combining air pump resilience with friction | |
| CN2183300Y (en) | Scram device for automobile | |
| CN110436358A (en) | The explosion-proof traction truck-mounted crane of mining multifunctional crawler type | |
| CN202294751U (en) | Vehicular graded pneumatic braking device | |
| CN2607345Y (en) | Sucking hydraulic cylinder type truck | |
| CN2071603U (en) | Raising and falling apparatus for loading platform at automotive vehicle's rear | |
| CN115230841A (en) | Novel environment-friendly energy-saving booster | |
| CN2918357Y (en) | Braking apparatus of bridge and trestle crane running gear | |
| CN2048835U (en) | Safety brake of motor vehicle | |
| CN2815769Y (en) | Self-propelled concrete arm support pump | |
| CN86100291A (en) | Car brakeing vibration reclaiming scrap with measurable loading | |
| CN2181436Y (en) | Automotive emergency brake | |
| CN201137032Y (en) | Mechanically-actuated single steel wheel vibrated roller | |
| CN1110656A (en) | Friction belt type emergence brake device | |
| CN201195560Y (en) | Novel automobile chassis | |
| CN111536175B (en) | Piston type retarding braking system for truck | |
| CN208440949U (en) | Mechanical Driven list steel wheel heavy vibration roller | |
| CN2238181Y (en) | Farm motor three-wheel semitrailer | |
| CN101480945A (en) | Energy-saving method and special equipment for motor vehicle | |
| CN202641387U (en) | Electric automobile | |
| CN2168078Y (en) | Automatic speed-controlling, oil-saving device for automobile | |
| CN86200312U (en) | Heat rate mechanical energy regenerater for vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |