SU955849A3 - Pneumatic brake cylinder with spring energy accumulator for vehicle - Google Patents

Description

The invention relates to brake drive cars.

The closest of the known technical solutions is a pneumatic brake cylinder with spring brake for a vehicle, comprising a housing in which the spring is coaxially embedded energy storage unit and the working brake assembly, the spring assembly energoakkumu- ⁰ insulator configured with separated disinhibitory piston and the spring chambers, and the working brake site - with a pressure chamber and a rod chamber separated by a furniture chamber, in the last of which a pressure rod connected to the membrane is placed, while fifth piston is kinematically linked to the membrane by a control rod, a spring chamber communicates with channel compensation cam rod fl].

A disadvantage of the known cylinder is that the ingress of dust and moisture into the spring chamber reduces its operational reliability.

The purpose of the invention is to increase operational reliability.

This goal is achieved by the fact that the compensation channel is made in the form of a hose connected by nozzles to the spring and rod chambers, while the brake chamber is located next to the pressure chamber and is separated from it by a partition, the control rod is passed through the hole in the specified partition, and the spring chamber is isolated from the atmosphere.

In addition, the nozzles are mounted at the upper points of the walls of the housing, limiting the respective chambers.

The drawing shows a pneumatic brake cylinder with a spring energy battery for a car in section.

A spring 1 accumulator assembly 1 is formed in the cylinder body, in which a piston 2 with a seal 3 and an accumulation spring 4 are installed. Piston 2 divide the spring energy accumulator assembly 1 into the spring chamber 5 and the brake chamber 6. The union 7 serves to supply air to the chamber 6. Pressure plate 8 by means of a control rod 9 passing through seals 10 in the wall 11 is rigidly connected to the piston 2. The working brake assembly 12 is divided by a membrane 13 into a pressure chamber 14 and a rod chamber 15. The membrane 13 abuts against a plate 16 and a slider 17. M A spring 18 is installed between the plate 16 and the end wall of the assembly 12. 5

The slider 17 is connected to the rod 19 connected to the brake mechanism. At the top of the walls of the chambers. 5 and 15, nozzles 20 and 21 are installed, connected by a hose 22. The fitting 23 is used to supply air to the chamber 14. The chamber 5 is isolated from the atmosphere by a plug 24.

ι When the auxiliary and parking brakes are applied in the chamber 6, the pressure decreases and the spring 4 moves the piston 2 and then the rod 9, the membrane 13, the plate 16, the slider 17 and the rod 19, while the air from the chamber 15 flows through the hose 22 into the chamber 5. "

When the brake is turned off, pressure is applied to chamber b, and all the elements return to their original position, while air flows from chamber 5 to chamber 15. _

The proposed cylinder has * 5 increased reliability when working in conditions of high humidity and dust.

Claims (2)

The brake assembly 12 is divided by a membrane; - a wound 13 into a pressure chamber 14 and a stem chamber 15. The diaphragm 13 abuts with a plate 16 and into a slider 17. A spring 18 is installed between the disc 16 and the end wall of the assembly 12. The slider 17 is connected to the stem 19 connected to the brake mechanism. In the upper points of the walls of the chambers. 5 and 15 are installed nozzles 20 and 21, connected by a hose 22, the Nozzle 23 serves to feed air into the chamber 14. The chamber 5 is isolated from the atmosphere behind the muffler 24. I When the auxiliary and standing brake is activated, the pressure in the chamber 6 decreases and the spring 4 moves piston 2 and. then the rod 9, the membrane 13, the plate 16, the slider 17 and the rod 19, while the air from the chamber 15 flows through the hose 22 into the chamber 5. When the brake is released, pressure is applied to chamber 6, and all the elements return to their original position, while air flows from chamber 5 to chamber 15. The proposed cylinder has increased reliability when operating in conditions of high humidity and dustiness. Claim 1. Pneumatic brake cylinder with spring power accumulator for a car, comprising a housing in which a spring power accumulator assembly and a service brake assembly are coaxially integrated. The spring power accumulator assembly is made with separate piston release and spring chambers, and the service brake assembly is a pressure chamber and a rod chamber separated by a membrane, in the latter of which a pressure rod connected to the membrane is placed, said piston being kinematically connected diaphragm by means of control, and the spring chamber is communicated by a compensation channel to the rod chamber, in that, in order to increase the operational reliability of the cylinder, the compensation channel is made in the form of a zshanga connected by nozzles with spring and rod chambers, while the expansion chamber is located the house with a pressure chamber and is separated from it by a partition; the control haul is passed through the hole, the sling is in the indicated partition, and the spring chamber is isolated from the atmosphere. 2. The cylinder according to claim 1, characterized in that the nozzles are mounted in the upper points of the walls of the housing, limiting the corresponding chamber. . Sources of information taken into account in the examination 1, US Patent 2800723, cl. 188-106, 1957.