CN2061910U - Inertia transducing solenoid valve blocking-proof bracking device - Google Patents
Inertia transducing solenoid valve blocking-proof bracking device Download PDFInfo
- Publication number
- CN2061910U CN2061910U CN 90200127 CN90200127U CN2061910U CN 2061910 U CN2061910 U CN 2061910U CN 90200127 CN90200127 CN 90200127 CN 90200127 U CN90200127 U CN 90200127U CN 2061910 U CN2061910 U CN 2061910U
- Authority
- CN
- China
- Prior art keywords
- valve
- flyball
- velometer
- valve body
- valve rod
- 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.)
- Withdrawn
Links
Images
Landscapes
- Regulating Braking Force (AREA)
Abstract
The utility model discloses an inertia sensing solenoid valve anti-locking braking device used for a vehicle braking system, in particular to an anti-locking brake device of the vehicle air braking system. The utility model is characterized in that a solenoid valve is controlled by a mechanical centrifugal speedometer for inertia sensing; a brake master cylinder is controlled by the solenoid valve to transport pulsed air pressure to a brake air chamber; so the braking force of the wheels of a vehicle is periodically changed and the locking is prevented; the rotating speed variation of the wheels is detected by the speedometer driven by a rear axle differential. The utility model has the advantages that the wheels are kept rolling in the process of braking; particularly the vehicle can stop stably without sideslip in the roadways with low attachment coefficient such as roadways with snow, rain or mud; the structure is simple; the cost is low.
Description
The utility model relates to a kind of motor vehicle braking systems, particularly anti-lock brake system of automobile pressure brake system of being used for, and it comprises that an inertia sensing that can reflect vehicle wheel rotational speed and one are subjected to this sensor control cock that handle, may command compressed air brake cylinder pressure variation.
The 10th page of magazine " friend of automobile " the 2nd phase in 1988 discloses a kind of Britain Ford.The Lu Sika Green brake control system SCS(Lucas Girling Stop Control Syste that adopts in the dust Scott automobile).It is to adopt the machinery valve system to replace complicated deceleration of electrons antiblock device, thereby makes price reduce to 420 dollars from 1470 dollars, and makes the stability of braking very satisfied.But this technology mainly is to be applied among the automobile of water brake, and this is for domestic automobile of most employing pneumatic brake and inapplicable, and its price is still inclined to one side too high concerning the user of China.
The purpose of this utility model provides a kind of anti-lock function admirable price more cheap new device with regard to the deficiency that is to overcome above-mentioned prior art and for auto-industry, particularly air break automobile.
This purpose can reach by following technical scheme:
With the rotating speed of a velometer as mechanical type inertial sensor monitoring wheel, promptly drive the velometer rotation by mechanical transmission mechanism from rear-axle differential, the rotating speed of velometer and the ratio of revolution of wheel are certain speed ratio.Velometer is with solenoid electric valve of horizontal rectilinear motion control of vehicle wheel rotational speed, control the brake pulse air pressure of supplying with compressed air brake cylinder again by it, when wheel because braked speed reduces during stall, velometer turning unit centnifugal force reduces, draw in to the center, along continuous straight runs moves to a certain side simultaneously, driving solenoid electric valve closure is cut off master cylinder and is led to the air pressure of compressed air brake cylinder and make its pressure releasing part, when pressure reduces, the brake shoe brake cheek lock torque reduces, wheel begins to rotate thereupon, and the velometer rotative speed is also along with rising simultaneously, and its turning unit centnifugal force increases, outwards throw away, along continuous straight runs moves to reversing sense, at this moment disconnects solenoid electric valve, recloses gas circuit, the pressure of compressed air brake cylinder increases, and makes the brake shoe brake cheek lock torque add the big wheel stall.This circulation is through whole braking procedure.So, make wheel in braking procedure, remain rolling condition, thereby prevent locking, make braking very steady.
The drawing of accompanying drawing is described as follows:
Fig. 1 is an anti-lock brake system principle of work scheme drawing.
Fig. 2 is a flyball formula velometer structural representation.
Fig. 3 is a flyball-type velometer structural representation.
Fig. 4 is the solenoid electric valve structural representation.
Fig. 5 is a solenoid electric valve principle of work exploded drawings.
Below in conjunction with drawings and Examples the utility model is described in further details.
Referring to Fig. 1.The figure shows a four-wheel braking, single tube road system anti-lock brake system principle of work.12 is air receiver among the figure, 11 is master cylinder, and 10 are trailing wheel braking solenoid electric valve, and 9 is the back compressed air brake cylinder, 8 is drive gearbox, 7 is the back axle driven wheel of differential, and 6 is velometer, and 5 is the electrical contact switch, 4 is braking signal switch, 3 is the front wheel brake electromagnetic valve, and 2 is preceding compressed air brake cylinder, and 1 is the monitoring display lamp.Referring again to Fig. 2.By driven gear 81 rotations again of cylindrical wheel of suit 83 driven gears 82 on the diff driven wheel of differential 7 of automobile back wheel driving.Gear 81 is packed on the rotating hinge of flyball formula velometer 65, makes flyball formula velometer along with the rotation of wheel is rotated by certain speed ratio.When vehicle wheel rotational speed improved, flyball was because action of centrifugal force is outwards opened, and the hinged intersection point 65A level of flyball link rod moves right simultaneously; When vehicle wheel rotational speed descended, flyball drew in to the center, and hinged intersection point 65A level is moved to the left simultaneously simultaneously, and the inner hole sleeve of a movable sleeve 62 is contained on the dead axle 64 and slidably, spring 63 is housed between nose end and axle head.The left side of movable sleeve 62 leans against on the hinged intersection point 65A of flyball link rod, and its afterbody links to each other with a leverage 61, and leverage 61 links by the moving contact in connecting rod and the electrical contact switch 5.So, when hinged intersection point 65A slows down stall along with wheel braking speed and is moved to the left, electrical contact switch 5 closures also also connect solenoid electric valve 10,3, instantaneous, close air receiver and transport to the gas that master brake cylinder is transported to forward and backward system air chamber 2,9 again, compressed air brake cylinder reduces the brake shoe brake cheek braking force by the pressure-relief valve pressure release, thereby wheel begins to rotate.Flyball outwards opens, and hinged support moves right, and electrical contact switch 5 disconnects, and solenoid electric valve 10,3 also leaves, and the gas circuit of leading to compressed air brake cylinder is connected, and the compressed air brake cylinder increased pressure increases the lock torque of brake shoe brake cheek.Stop during wheel like this, the time pine constantly change, remain in the braking procedure rolling condition and can locking.
Referring to Fig. 3.This is another one embodiment of the present utility model.Be about to the flyball-type velometer 65 of flyball formula velometer 65 usefulness ' replace in the foregoing description, therefore when vehicle wheel rotational speed changes, the left and right parallel motion of the hinged intersection point 65A of flyball link rod by flyball velometer 65 ' in the left and right horizontal of awl dish 65A ' move replace, other mechanism and principle of work are just the same no longer to be repeated here.
Referring to Fig. 4, Fig. 5.There is shown a specific embodiment of solenoid electric valve.This valve is made up of three parts:
(1) electromagnetic driver 39, are positioned under the valve;
(2) connection for bbreather pipe is positioned on the valve, is a normally open valve.It comprises upper valve body 31, following valve body 38, and valve head 32 is with the valve rod 32A that valve head 32 links together, valve rod overcoat 33, locating dowel pin 34, outer spring 35, inner spring 36, outer spring seat 37.Wherein have induction opening 31A on the upper valve body 31, air gate 31B.The lower surface of induction opening is upper valve base 31C, and the upper surface of following valve body 38 is lower valve base 31D.Upper and lower valve body with Bolt Connection together.Valve head 32 is between upper and lower valve seat 31C and 31D, and its underpart is a sleeve-like valve rod 32A, and the valve rod outside is with a valve rod overcoat 33 in addition, but both slide relative.The lower end of valve rod overcoat 33 its afterbody that contacts with the mechanical push rod 39A of electromagnetic driver 39 is equipped with an outer spring seat 37, the outer spring 35 of packing between the upper surface in spring perch 37 and following valve body 38 chambeies outside.Inner spring 36 is contained between valve rod 32A lower surface and the valve rod overcoat 33 endoporus lower surfaces.Afterbody at valve rod 32A is drilled with a pin-and-hole, and is corresponding with pin-and-hole, has two axial elongated slots on valve rod overcoat 33, and 34 of locating dowel pins pass this elongated slot and pin-and-hole.In addition, get out 1～3 air gate respectively, and when valve head 32 sealed with valve seat 31C, these two groups of air gates communicated on the top of valve rod 32A and valve rod overcoat 33;
(3) pressure-relief valve 313, are positioned at the down sidepiece of valve body 38, communicate in its centre hole and the following valve body, and lateral aperture communicate with atmosphere.The pressure that nut 312 can be adjusted spring 311 holds out against steel ball 310 and make valve body and atmospheric sealing down on valve seat.Instantly steel ball 310 was lifted off a seat after the valve body internal pressure surpassed setting, and the valve internal pressure is leaked.
Analyze the working process of solenoid electric valve again below in conjunction with Fig. 5:
State when Fig. 5 (a) is depicted as the solenoid electric valve disconnection.At this moment, valve head 32 and valve seat 31D sealing, induction opening 31A communicates with master brake cylinder 11, and air gate 31B communicates with compressed air brake cylinder 9,2, makes the brake shoe brake cheek brake wheel by the braking pressure of air tank 12.
Fig. 5 (b) is depicted as solenoid electric valve and rigidly connects state when logical.At this moment mechanical push rod 39A promotes valve rod overcoat 33 and overcomes outer spring 35 spring force upward movements earlier, and drives also upward movement of valve rod 32A, makes valve head 32 and upper valve base 31C sealing.Because outer spring power is less than inner spring power, so valve rod overcoat 33 moves on continuing during design.
Fig. 5 (c) is depicted as when valve rod overcoat 33 and overcomes inner spring elastic force, axially elongated slot is to move to end position on locating dowel pin 34 location, at this moment valve rod overcoat and valve rod top two groups of lucky correspondences of aperture of being made communicate, gas in the compressed air brake cylinder enters the air gate that valve rod 32A centre hole passes its underpart again by this aperture and enters down valve body and pressure-relief valve, when pressure surpasses the pressure of setting up, back down steel ball 310 and leak, the brake shoe braking force is weakened.If following valve body internal pressure is reduced to settling pressure when following, the sealing of steel ball 310 returns.And vehicle wheel rotational speed improves, and solenoid electric valve is disconnected, and under inside and outside action of the spring, recovers state shown in Fig. 5 (a).Below circulation is same as described above.Fig. 5 (b), (c) have illustrated valve head 32 to cut off source of the gas, the working process of pressure release behind the valve rod overcoat 33 up K segment distances earlier.
Referring to Fig. 1.Electrical contact switch 5 and stop lamp switch 4 are composed in series an AND gate circuit, work as one like this and brake, stop lamp switch is connected, and supplies with contact switch 5 electric currents, and anti-embracing unit side enters mode of operation.In addition, electrical contact switch 5 can also be connected with the monitoring display lamp 1 of operator's compartment, so just can be convenient to the driver grasp brake and anti-lock device work whether normal.
Except technique scheme, still have following several technical scheme to select:
1, the arrangement of antilock device in braking system:
A, single-pipeline system only at trailing wheel assembling antilock device, at this moment must install check valve additional in brake piping, to prevent trailing wheel when the ANTI LOCK, pulse pressure hinders the brake force of front-wheel;
B, dual circuit system, four-wheel anti-lock, front and back wheel diagonal line arranged crosswise, promptly the near front wheel and off hind wheel are an integral body, off front wheel and left rear wheel are another integral body.
2, the composition mode of AND gate circuit:
A, electrical contact switch 5 and be installed in the electromagnetic control valve body on special switch be connected in series;
Special switch in b, electrical contact switch 5 and stop lamp switch 4, a item and link be connected in series, with the raising safety performance.
3, the anti-lock function monitoring shows:
The light of a, operator's compartment shows and the switch connection that can directly react the electromagnetic valve action, in order to the work of monitoring electromagnetic valve.
B, establish two light respectively and show an action that shows the contact, an action that shows electromagnetic valve.
The utility model compared with prior art has following advantage: simple in structure, with low cost, anti-lock dependable performance, can be used as the type selecting device of air brakes vehicles ABS (Anti-lock Braking System) fully, thereby improve vehicle braked stationarity and safety, reduce the generation of traffic accident.
Claims (5)
1, a kind of motor vehicle braking systems, particularly anti-lock brake system of automobile pressure brake system of being used for, comprise that an inertia sensing that can reflect vehicle wheel rotational speed and one are subjected to control cock that this sensor is handled, may command braking gas circuit pulse air pressure, is characterized in that:
A, said inertial sensor are centrifugal velometers of machinery, and this velometer is driven by constant speed than rotation by mechanical transmission mechanism by rear-axle differential;
B, said control cock are solenoid electric valves, and the break-make of its power supply is controlled by the motion of velometer and by mechanical mechanism, and the braking pressure size of compressed air brake cylinder is supplied with in this solenoid electric valve control.
2, anti-lock brake system according to claim 1 is characterized in that:
A, said inertial sensor are flyball formula velometers 65;
Rotatablely moving of b, flyball formula velometer 65 is cylindrical wheel 83 transmission gears 82 by being installed at rear-axle differential driven wheel of differential 7 afterbodys, transmission is packed in the gear 81 in the 6 afterbody rotating shafts of flyball formula velometer again, flyball is raise along with the speed of automotive wheel or reduce and outwards open or inwardly draw in, the hinged intersection point 65A of flyball link rod is along with the along continuous straight runs sway simultaneously;
The inner hole sleeve of c, movable sleeve 62 is contained on the dead axle 64 and slidably, spring 63 is housed between nose end and axle head, last its afterbody of hinged intersection point 65A that the left side of movable sleeve 62 leans against the flyball link rod links to each other with a leverage 61, and leverage 61 links by the moving contact in connecting rod and the electrical contact switch 5;
D, electrical contact are switched on or switched off 5 control solenoid electric valves 10,3.
3, anti-lock brake system according to claim 1 is characterized in that:
A, said inertial sensor be a flyball-type velometer 65 ';
B, flyball-type velometer 65 ' to rotatablely move be cylindrical wheel 83 transmission gears 82 by being installed at rear-axle differential driven wheel of differential 7 afterbodys, transmission is packed in the gear 81 in the rotating shaft of flyball-type velometer 65 ' afterbody again, flyball is raise along with the speed of automotive wheel or reduce and outwards open or inwardly draw in, the awl dish 65A ' of flyball velometer is along with the along continuous straight runs sway simultaneously;
C, movable sleeve 62 ' inner hole sleeve be contained in dead axle 64 ' go up and slidably, be equipped with between nose end and axle head spring 63 ', movable sleeve 62 ' left end bulge loop and awl dish 65A ' be fixed together, its afterbody and a leverage 61 ' link to each other, and leverage 61 ' by connecting rod and electrical contact the moving contact in 5 is linked;
D, electrical contact are switched on or switched off 5 control solenoid electric valves 10,3.
4,, it is characterized in that said solenoid electric valve 10,3 is made up of three parts according to the described anti-lock brake system of claim 1～3:
A, electromagnetic driver 39 are positioned at the bottom of valve;
B, connection for bbreather pipe, be positioned at the top of valve, it is a normally open valve, it comprises upper valve body 31, following valve body 38, valve head 32, valve rod 32A, valve rod overcoat 33, locating dowel pin 34, outer spring 35, inner spring 36, outer spring seat 37, wherein have induction opening 31A on the upper valve body 31, air gate 31B, the lower surface of induction opening is upper valve base 31C, the upper surface of following valve body 38 is lower valve base 31D, on, following valve body with Bolt Connection together, valve head 32 is positioned at, between lower valve base 31C and the 31D, its underpart band one sleeve-like valve rod 32A, the valve rod outside is with a valve rod overcoat 33, but both slide relative, the lower end of valve rod overcoat 33 contacts with the mechanical push rod 39A of electromagnetic driver 39, its afterbody is equipped with an outer spring seat 37, the outer spring 35 of packing between the upper surface in spring perch 37 and following valve body 38 chambeies outside, inner spring 36 is contained between valve rod 32A lower surface and the valve rod overcoat 33 endoporus lower surfaces, afterbody at valve rod 32A is drilled with a pin-and-hole, corresponding with pin-and-hole, on valve rod overcoat 33, have two axial elongated slots, 34 of locating dowel pins pass this elongated slot and pin-and-hole, in addition, be drilled with 1～3 air gate respectively on the top of valve rod 32A and valve rod overcoat 33, and when valve head 32 sealed with valve seat 31C, these two groups of air gates communicated;
C, pressure-relief valve 313, be positioned at the sidepiece of valve body 38 down, communicate in its centre hole and the following valve body, and lateral aperture communicates with atmosphere, the pressure of nut 312 adjustment springs 311 holds out against steel ball 310 and make valve body and atmospheric sealing down on valve seat, instantly after the valve body internal pressure surpassed setting, steel ball 310 was lifted off a seat the valve internal pressure is leaked.
5, anti-lock brake system according to claim 4 is characterized in that:
A, electrical contact switch 5 compose in series an AND gate circuit with braking signal switch 4;
B, electrical contact switch 5 are also connected with the monitoring display lamp 1 of operator's compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200127 CN2061910U (en) | 1990-01-06 | 1990-01-06 | Inertia transducing solenoid valve blocking-proof bracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200127 CN2061910U (en) | 1990-01-06 | 1990-01-06 | Inertia transducing solenoid valve blocking-proof bracking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2061910U true CN2061910U (en) | 1990-09-12 |
Family
ID=4881990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90200127 Withdrawn CN2061910U (en) | 1990-01-06 | 1990-01-06 | Inertia transducing solenoid valve blocking-proof bracking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2061910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101253084B (en) * | 2005-08-29 | 2011-05-25 | 株式会社小松制作所 | Antilock brake system control device and method |
| CN102849646A (en) * | 2012-09-27 | 2013-01-02 | 太原重工股份有限公司 | Passive safety brake system and direction valve with speed limiting device of passive safety brake system |
-
1990
- 1990-01-06 CN CN 90200127 patent/CN2061910U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101253084B (en) * | 2005-08-29 | 2011-05-25 | 株式会社小松制作所 | Antilock brake system control device and method |
| CN102849646A (en) * | 2012-09-27 | 2013-01-02 | 太原重工股份有限公司 | Passive safety brake system and direction valve with speed limiting device of passive safety brake system |
| CN102849646B (en) * | 2012-09-27 | 2016-03-09 | 太原重工股份有限公司 | The direction valve of non-passive safety brake system and band speed-limit device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1073011A (en) | Speed-responsive tag axle control system | |
| CN1236939C (en) | Electronic pull-in control system | |
| US5758930A (en) | Electronically controllable brake actuation system | |
| CN100413736C (en) | Motorcycle braking device | |
| CN1109613C (en) | Vehicle with controlled-level suspension system | |
| CN200971099Y (en) | Vehicle electronic stability control system | |
| CN2801570Y (en) | Active antislid integrated control system | |
| US5829846A (en) | Hydraulic brake system for a motor vehicle, having two diagonal brake circuits, including an anti-lock system | |
| CN101049795A (en) | Specific intelligent alterable adhesive force system of shortening braking distance of autocar | |
| US5499865A (en) | Brake force control device for a vehicle | |
| CN111409613A (en) | Line-controlled brake system with hydraulic backup brake | |
| CN2061910U (en) | Inertia transducing solenoid valve blocking-proof bracking device | |
| US7475952B2 (en) | Braking system with mechanical combination valves | |
| CN218907207U (en) | Mining vehicle braking anti-lock control system | |
| CN202378862U (en) | Automobile, anti-overturn safety system and anti-overturn safety device for automobile | |
| CN215922161U (en) | Brake system and five-wheel vehicle | |
| CN2108023U (en) | Hydraulic brake seizure preventive device for car | |
| CN101195341A (en) | Hydraulic transmission energy accumulation vehicle | |
| CN111605520A (en) | Gear-driven reverse wheel emergency braking device | |
| CN101224743B (en) | Vehicle anti-collision speed-down, braking air-pressure automatic control device | |
| CN2739053Y (en) | Anti-lock brake device for automobile | |
| CN2071608U (en) | Instantaneous repeat pressure reduction antilocking device for braking | |
| JPS63242757A (en) | Non-slip device for brake gear of automobile and similar device | |
| CN2209625Y (en) | Anti-heavy braking device for vehicle | |
| CN113320339B (en) | New energy vehicle slows down and turns to and shock attenuation collision avoidance system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |