RU1787838C - Vehicle brake system compressor drive - Google Patents

Abstract

Usage: refers to the brake system of a vehicle. The inventive pulley is freely mounted on the compressor shaft, and on both sides of the pulley there are electromagnetic couplings, alternately interacting with the pulley and electrically connected to the contacts of the air pressure sensor in the brake system, while one of the electromagnetic couplings is kinematically connected to the compressor shaft via a planetary gearbox. 2 ill.

Description

The invention relates to mechanical engineering, in particular a vehicle braking system.

A known drive of the compressor of the brake system of the vehicle, containing a pulley belt drive, mounted on the shaft of the compressor. However, the known device is ineffective.

An object of the invention is to increase operational efficiency.

This is achieved by the fact that the compressor drive is equipped with electromagnetic couplings that interact alternately with the pulley, one of which is placed on one side of the pulley, mounted on the compressor shaft freely, to connect this shaft to the pulley directly, and the other on the opposite side. Of the latter and made planetary gearbox for connecting the shaft through it with a pulley, while both couplings are electrically connected to the contacts of the air pressure sensor in the brake system with which the drive is equipped,

Figure 1 shows a kinematic diagram of a compressor drive; figure 2 is the same electrical circuit.

The compressor drive 1 contains a belt pulley 2 3. The pulley 2 is mounted on the shaft 4 of the compressor 1. The compressor drive 1 is equipped with electromagnetic couplings 5 and 6, which are made to interact alternately with the pulley 2. The electromagnetic clutch 6 is placed on one side of the pulley 2 and freely mounted on shaft 4 of compressor 1 for directly connecting this shaft 4 to pulley 2. The electromagnetic clutch 5 is placed on the opposite side of the pulley 2 and is made with a planetary gear 7 for connecting the shaft 4 to the pulley 2 through it. The electromagnetic clutches 5 and 6 are electrically connected to the contacts 8 and 9 of the air pressure sensor 10 in the vehicle brake system.

- The drive works as follows,

When starting the vehicle engine, there is no pressure in the brake system, while contacts 8 are on

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pressure sensor 10, an electromagnetic clutch 6 is engaged, which interacts with the pulley 2, The rotation from the pulley 2 is transmitted to the electromagnetic clutch 6, the latter through the planetary gear 7 drives the shaft 4 of the compressor 1..

After reaching the working pressure in the brake system to the required value, the contacts 8 of the sensor 10 are disconnected, as a result, the electromagnetic clutch 6 is also turned off, while the contacts 9 are turned on, the latter turn on the electromagnetic clutch 5 and the pulley 2 transmits rotation to the shaft 4 of the compressor 1 through the electromagnetic clutch 5 and the rotational speed of the shaft 4 of the compressor 1 decreases.

Thus, the use of the invention significantly accelerates the achievement of the required pressure in the brake system,

than reducing vehicle downtime.

Claims (1)

SUMMARY OF THE INVENTION A compressor drive brake system of a vehicle, comprising a belt pulley mounted on a compressor shaft, characterized in that, in order to increase operating efficiency, it is equipped with electromagnetic clutches interacting with the pulley in turn, one of which is placed on one side of the pulley, mounted on the compressor shaft freely to connect this shaft to the pulley directly, and the other on the opposite side of the latter and made with a planetary gear for connecting without a shaft with a pulley, both couplings being electrically connected to the contacts of the air pressure sensor in the brake system. b H