SU920292A1

SU920292A1 - Brake hydraulic drive control member

Info

Publication number: SU920292A1
Application number: SU792758591A
Authority: SU
Inventors: Борис Григорьевич Тригер; Тамара Борисовна Цыганкова
Original assignee: За витель
Priority date: 1979-04-26
Filing date: 1979-04-26
Publication date: 1982-04-15

Description

(54) ОРГАН УПРАВЛЕНИЯ ГИДРОПРИВОДОМ TOP/WO3A(54) TOP / WO3A HYDRAULIC CONTROL BODY

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Изобретение относитс к автомобилестроению и можег быть использовано в тормозных системах транспортных средств с гидравлическим приводом.The invention relates to the automotive industry and can be used in brake systems of vehicles with hydraulic drive.

Известен орган управлени гидропривода тормозов, содержащий корпус с цилиндром и резервуаром, сообщенным с атмосферой, поршень, с канавками на торце уплотнительный элемент,- взаимодействующий с одной стороны с тормозной жидкостью, а с другой с порщнем, впускной и выпускной клапаны с пружинами, толкатель порщн с регулировочной т гой, пылезащитный чехол 1.Known control body hydraulic brakes, comprising a housing with a cylinder and a reservoir communicated with the atmosphere, a piston, with grooves on the end of the sealing element, interacting with one side of the brake fluid, and on the other with the piston, the inlet and exhaust valves with springs, pusher piston with adjustment bar, dust cover 1.

Однако такой орган управлени имеет небольщой срок службы, так как уплотнительный элемент при каждом торможении перемещаетс в цилиндре и сравнительно быстро изнашиваетс . Кроме того, во врем эксплуатации происходит снижение уровн тормозной жидкости в резервуаре, что вл етс причиной попадани воздуха в гидропривод, вследствие чего снижаетс надежность его работы.However, such a control has a short lifespan, since the sealing element moves in the cylinder during each braking and wears out relatively quickly. In addition, during operation a decrease in the level of brake fluid in the reservoir occurs, which causes air to enter the hydraulic actuator, as a result of which its reliability is reduced.

Цель изобретени - повышение .долговечности и надежности работы органа управлени гидропривода тормозов.The purpose of the invention is to increase the durability and reliability of the control body of the hydraulic actuator of the brakes.

Поставленна цель достигаетс тем, что орган управлени гидроприводом тормоза, содержащий корпус с рабочей камерой, подвижный в осевом направлении элемент и св занный с ним толкатель, снабжен упругим кольцом и промежуточным толкателем, выполненным в виде стакана, установленного между подвижным в осевом направлении элементом- и основным толкателем и расположенный в упом нутом стакане втулки, подпружиненной к его торцу и шарнирно св занной с The goal is achieved by the fact that the hydraulic brake control body, comprising a housing with a working chamber, an axially movable element and a pusher associated with it, is provided with an elastic ring and an intermediate pusher, made in the form of a glass, installed between an axially movable element and main pusher and located in the said sleeve glass, spring-loaded to its face and pivotally connected to

10 основными толкателем, подвешенный в осевом направлении элемент выполнен в виде мембраны, укрепленной по периферии в корпусе и установленной с возможностью взаимодействи с наружным дном стакана, а ,5 упругое кольцо расположено между мембраной и корпусом соосно со стаканом промежуточного толкател .10 main pusher, axially suspended element is made in the form of a membrane, reinforced on the periphery in the housing and installed with the possibility of interaction with the outer bottom of the glass, and 5 elastic ring is located between the membrane and the housing coaxially with the glass of the intermediate pusher.

Кроме того, упругое кольцо выполнено с радиальными разрезами, в стакане выполнен кольцевой паз, а упом нутое кольцо из20 нутри укреплено в кольцевом пазу стакана, а снаружи зафиксировано в корпусе.In addition, the elastic ring is made with radial cuts, an annular groove is made in the glass, and the said ring of 20 nut is fixed in the annular groove of the glass, and fixed on the outside in the body.

Claims

The drawing shows a hydraulic brake control, longitudinal section. The hydraulically controlled brake .33 includes a housing 1, in a cylindrical cavity of which a piston 2 is installed, which contacts one end with a membrane 3 fixed to the end of the housing by means of a cover 4, which is made inwardly and forms a diaphragm, 3 working chamber. Between the membrane 3 and the inner conical surface of the housing 1 there is a split ring. 5, one end of which is in contact with the housing 1 through the balls 6, and the second enters the annular groove 7 of the piston 2. A spring-loaded intermediate pusher 9 with a spring 10 is mounted to the 8-jack 8 of the piston 2. A guaranteed backlash I is installed between the intermediate push-rod 9 and the end of the jack 8 of the piston 2. The intermediate pusher 9 is connected with the main pusher 12 and the adjusting thrust 13. On the split ring 5 there are recesses for the central ball 6 and the grooves of variable depth for the side balls. The petals themselves bevel overlap each other, and a gap is formed at the junction between them near the piston 2. In the cylindrical cavity of the piston 2, a spring 10 is installed and an intermediate pusher 9 with an aperture, which on one side contacts the push rod 9 with an adjusting rod 13 connected to the brake pedal (not shown), and on the other side there is a gap between them and piston 2 11. Adjusting t ha 13 and the pusher 9 are closed with a corrugated dust cover. Move to the left of the piston 2 and the intermediate pusher 9 is limited to retaining rings, respectively 14 and 15. At the tide of the housing 1 on the thread there is a latch 16, against which in the piston 2 there is an annular groove 17. At the tide of the cover 4 a hole 18 is made, closed by a threaded plug 19 with a gasket and in the center of the lid there is a hole 20 connecting the working chamber with the brake line. The control of the hydraulic brake works as follows. Through the opening 18, the working chamber is filled with brake fluid. Before filling, the latch 16 is inserted into the annular groove 17. Having filled the system, the opening 18 is closed with the stopper 19 and the latch 16 is withdrawn from the annular groove 17. Using the adjusting rod 13, the compression of the spring 10 is adjusted with the force required to select all the gaps brake system. At the same time, the gap 11 is much reduced, but remains sufficient to compensate for the volume of the working chamber when the brake fluid is heated. The fixing of the piston 2 with the retainer 16 ensures that the hydraulic drive is filled with the necessary amount of brake fluid. When the brake pedal is pressed (not shown), the pusher 12 moves the intermediate pusher 9 and compresses the spring 10. The intermediate pusher 9 contacts the piston 2, which together with the split ring 5 moves the diaphragm 3 to the right, and the latter compresses the brake fluid entering the hydraulic drive line. The return of the membrane 3 to its initial position is carried out by the pressure of the brake fluid returning from the hydraulic line under the action of the steel springs of the brake shoes. The present invention allows to increase the durability of the device by eliminating the wear of the working surface of the piston seal, since the elastic wall of the working chamber is at the same time a seal experiencing only bending loads, and, moreover, this design improves the reliability of operation brake fluid pressure, as it almost completely eliminates the ingress of air into the cavity of the working chamber. Claims. A hydraulic brake control device comprising a housing with a working chamber, an axially movable element and a pusher associated with it, characterized in that in order to increase durability and reliability of operation, it is provided with an elastic ring and an intermediate pusher designed as a glass installed between the axially movable element and the main pusher and located in the said sleeve glass, which is spring-loaded to its face and pivotally connected to the main pusher, movable in the axial direction the element is made in the form of a membrane, reinforced at the periphery in the body and installed with the possibility of interaction with the outer bottom of the glass, and the elastic ring is located between the membrane and the body coaxially with the glass of the intermediate pusher.

2. The organ of claim 1, characterized in that the elastic ring is made with radial cuts, an annular groove is made in the beaker, and said ring is internally fastened in the annular groove of the beaker, and fixed in the body from the outside. Sources of information taken into account in the examination 1. USSR Patent No. 311469, cl. F 16 D 65/32, 1969 (prototype).