专利摘要:
A vehicle load-sensing assembly for use with a vehicle fluid-pressure braking system comprises an input member subjected to a force in a road spring and a valve which has a movable valve member for controlling the flow of fluid through the valve. A thrust transmitting mechanism is located between the input member and the valve member. The thrust transmitting mechanism comprises relatively movable parts, and a camming device is disposed between the parts to transmit movement between the parts to control operation of the valve member.
公开号:SU919584A3
申请号:SU782616800
申请日:1978-05-18
公开日:1982-04-07
发明作者:Филлип Реджинальд Фарр Глин
申请人:Гирлинг Лимитед (Фирма);
IPC主号:
专利说明:

one
The invention relates to the automotive industry, in particular to devices for adjusting the braking forces.
The closest technical solution to the present invention is a brake force regulator for an automobile, containing a valve with a movable valve element for regulating fluid flow, an input element under the influence of a spring suspension, and a transmission mechanism located between input element and valve element
Known regulator does not have sufficient reliability. . | 8
The purpose of the invention is to increase reliability.
This goal is achieved by the fact that the transmission mechanism is made in the form of a rotary disk, mounted 20 rotatably under the action of an input element, a rotary disk located between said disks of a cam device for converting an axial 25
the movement of the input element in the rotational movement of the rotary disk, and the means connecting the rotary disk with the valve element. .
The cam device is made: In the form of oblique grooves formed circumferentially on the surfaces of the swivel and non-rotary disks and roller elements facing each other.
The means connecting the rotary disk with the valve element is an intermediate disk mounted for axial movement between the rotary disk and the valve element, wherein an additional cam device is installed between the intermediate disk and the rotary disk, the valve element being in the form of a piston, and an intermediate disc is mounted coaxially with said piston in a cylindrical channel formed in a non-rotatable disc. 39 The means connecting the swivel disk with the valve element is a shaft mounted in the sleeve, rigidly connected to the rotary disk, and a lever connected to the end of the shaft in contact with the valve element made in the form of a piston, the axis of which is perpendicular to the axis of the sleeve . Fig. 1 shows a regulator, a first modification; Fig. 2 is the same, second modification. The regulator (Fig., 1.) contains a valve 1 mounted on the chassis 2 av | gomobil and having a housing 3 with a stepped cylindrical channel t, closed at the end with a smaller diameter and distant from each other, located at opposite ends of the channel part with a large seals 5 and 6. The inlet 7 communicates the brake master cylinder, acting from the brake pedal, with a cavity enclosed between the seals 5 and 6, and the exhaust port 8 communicates the torus of the rear wheels of the car with covered end First, from the outside of the seal 5- The valve element containing the piston 9 is passed downward in the chassis 2 through the seal 6 and the aperture 10. The valve element has a suit 11 of reduced diameter passing through the zone of the location of the seal 5 and supporting the expanded head 12, entering the sealing clutch with the seal 5, the internal diameter of which is larger than the internal diameter of the seal 6. Thus, by changing the position of the piston 9, the flow of fluid from the main cylinder to the brake discs is regulated. The valve 1, depending on the load being tested by the car, is controlled by the transmission mechanism 13, P is placed between the piston 9 and the input element I, which contains a support for supporting the upper end of the spring 15 of the suspension, which rests with its lower end one on the rear axle 17. 13 contains a rotary disk 18 bolted to the underside of chassis 2 and housing 3 in order to eliminate possible rotation% and a rotary disk 19 with a load transfer base plate 20 located between the element} C and disk 19. Balls or rollers 21 placed in the inclined grooves 22 adjacent to each other and located at a certain angular distance oj of each other 22 adjacent surfaces of the disks 18 and 19, in which the balls or rollers 21 move, thereby causing relative axial movement of the disks 18 and 19, for example, removing them from each other , while rotating the disk 19, or rotating the disk 19 with the axial movement of the disks 18 and 19 towards each other. The mechanism 13 acts on the free lower end of the piston 9 through an intermediate disk 23, which does not have the possibility of rotation and is adapted for relative axial movement 8 of the channel 2 of the disk 10, which includes the piston 9. Balls or rollers 25 are arranged in complementary-semicircular sections slots 26 and 27, made in facing Iqpyr to other surfaces of discs 19 and 23, respectively. The slope angle of slots 22, 26 and 27 is chosen so that when the piston is moved, for example, by 0.10 inches, element 14 moves the largest by 0 , 0 2 inches. During normal operation of the device, axle 9 is subjected to axial load and, therefore, fluid flows from the inlet 7 to the outlet 8 past the head 12, remote from the seat represented by the seal 5. The valve works like this until wherein the resultant pressure force acting on the piston 9 is sufficient to overcome the axial force of the spring 15 of the suspension, which is transmitted to the valve through the grooves 22 and, therefore, to engage the head 12 with the seal 5, closing the valve. With a further increase in the fluid pressure at the inlet, the piston moves up and down and regulates the flow of fluid in a known manner from the inlet 7 to the outlet 8. If the inlet pressure becomes less than the outlet pressure, the fluid flows in the opposite direction. the direction from the outlet 8 to the inlet 7. When increasing the load on the spring 15 of the suspension, for example, in the case of 59 full load of the car, the pressure acting on the valve 1 increases, me to overcome the spring force of the suspension 15 through the gear 13. Thus, before the liquid can be fed zakroets valve 1, to the rear brakes and cherez.vypusknoe opening 8 at a higher pressure. When overcoming the force of the spring 15
权利要求:
Claims (3)
[1]
the piston 9 moves downward in the direction of the axis 17, while exerting pressure on the disk 19 through the balls 25 and the sloping surfaces 26 and 27. The disk 19 begins to rotate, and it comes out of the engagement with the disk 18 breaking, abutting the balls 21 and sloping the surface of the unit 22, the resistance of the spring 15 suspension. When pressure exceeds this level, the valve delivers fluid to the rear brakes with less pressure. In the modified design of the device (Fig. 2), the disk 23 is excluded. And the balls or rollers 25. The disk 19 is integral with the shaft 28 adapted for rotation in the sleeve 29 in the housing 1, and the lever 30 is rigidly fixed on the free end of the shaft 28 The latter acts on the free end of the piston 9 which operates in the cylindrical channel and is located at a right angle to the axis of the sleeve 29. In this device design (Fig. 2) ° the rotation of the disk 19 is followed by the angular movement of the lever 30 to change the position of the valve item depending on the eneny load on the car. The design and operation of the other parts of the device shown in FIG. 2, is analogous to the structural and operation of the device shown in FIG. 1, and the corresponding parts of both devices. have the same corresponding numerals. Claim 1. Braking force regulator for a car, comprising a valve with a movable valve element for a regulating element, a rotary disk located between said disks of a cam device for converting axial movement of the inlet fluid flow element, under the influence of a spring suspension, and a transmission mechanism located between the input element and the valve element, in which, in order to increase reliability, the transmission mechanism is made in a view of a rotary disc, installed with the possibility of rotational movement of the rotary disc under the action of an input element, and means connecting the rotary disc with the valve element.
[2]
2. The regulator of claim 1, wherein the cam device is made in the form of inclined grooves formed circumferentially on facing surfaces of the swivel and non-rotary discs and roller elements.
[3]
3. The regulator of claim 1 is distinguished by the fact that the means connecting the rotary disk with the valve element is an intermediate disk mounted with the possibility of axial movement between the pivotal disk and the valve element. between the intermediate disk and the rotary device, an additional cam device is installed, the valve element being designed as a piston, and an intermediate disk mounted coaxially with the specified piston in a cylindrical channel formed in a non-rotary disk. , {. The regulator according to claim 1, wherein the means connecting the rotatable disk to the valve element is a shaft mounted in the sleeve rigidly connected to the rotary disk and connected with the end of the shaft, a lever in contact with a valve element made in the form of a piston, the axis of which is perpendicular to the axis of the sleeve. Sources of information taken into account in the examination 1. USSR author's certificate N 28517, 1СЛ. B 60 T 8/18, 1925.
e 11123
类似技术:
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同族专利:
公开号 | 公开日
IT1095817B|1985-08-17|
GB1577029A|1980-10-15|
JPS53143869A|1978-12-14|
IT7823501D0|1978-05-17|
BR7803157A|1979-07-10|
FR2391097A1|1978-12-15|
DE2821779A1|1978-11-23|
US4232909A|1980-11-11|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US3802750A|1969-12-31|1974-04-09|Aisin Seiki|Load-sensing and instruction-transmitting mechanism for cooperation with a hydraulic wheel brake system of a powered vehicle|
DE2411437A1|1974-03-09|1975-09-11|Knorr Bremse Gmbh|ADJUSTABLE LOAD BRAKE VALVE FOR COMPRESSED AIR CONTROLLED VEHICLES|
US3884532A|1974-07-10|1975-05-20|Wabco Westinghouse Gmbh|Vehicle load-weighing apparatus and valve means operable responsively thereto|
GB1557006A|1975-07-14|1979-12-05|Girling Ltd|Vehicle load sensing arrangements|
US3997735A|1975-09-24|1976-12-14|Bell Telephone Laboratories, Incorporated|Telephone station make-busy circuit|IN150635B|1979-01-16|1982-11-20|Lucas Industries Ltd|
DE3276418D1|1982-03-16|1987-07-02|Bendix Italia|Regulating brake valve|
GB8620313D0|1986-08-21|1986-10-01|Gordon W D|Thrust producing unit|
FR2629412B1|1988-03-30|1991-10-25|Bendix France|BRAKE CORRECTOR SERVO-LOADED BY A VEHICLE ACCORDING TO THE PLATFORM OF THE LATEST|
DE3906161A1|1989-02-28|1990-08-30|Teves Gmbh Alfred|Load-dependent brake-pressure control device for a fluid-operated motor-vehicle brake system|
DE3915221A1|1989-05-10|1990-11-15|Teves Gmbh Alfred|Dual control unit for hydraulic brakes - has lever of variable length acting via control pistons to vary input to output hydraulic pressure ratio|
FR2649046B1|1989-06-28|1991-09-13|Bendix France|SUPPORT PART FOR SUSPENSION SPRING|
JPH03104760A|1989-09-19|1991-05-01|Tokico Ltd|Load sensing type liquid pressure control device|
US7189033B2|2003-11-20|2007-03-13|The Boeing Company|Apparatus and methods for thrust sensing valves|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
GB2120477A|GB1577029A|1977-05-19|1977-05-19|Vehicle load sensing assemblies|
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