CN202063126U

CN202063126U - Automatic cooling regulating device of brake

Info

Publication number: CN202063126U
Application number: CN201120177997XU
Authority: CN
Inventors: 贺虹; 张为春
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2011-12-07
Anticipated expiration: 2021-05-30

Abstract

The utility model relates to an automatic cooling regulating device of a brake, which is characterized in that a temperature sensor is installed at the upper end of a brake cylinder, a water level sensor is installed at the upper part of a water tank, a flow regulating valve and an electromagnetic valve are arranged on a water spray pipe, a relay is connected with the electromagnetic valve to control the opening of the electromagnetic valve and a data memory is used for storing temperature values. The flow regulating valve is controlled according to acquired water level signals to enable water spray volume to be gradually decreased with the lowering of water level.

Description

A kind of drg cools off control apparatus automatically

Technical field

The utility model relates to the automobile brake field, particularly a kind of system that guarantees ride safety of automobile.

Background technology

The mountain road slope is big curved anxious, needs frequent braking in the vehicle traveling process, and the drg work-hours is longer, brake strap and brake wheel generate heat easily, cause the friction coefficient of friction lining sharply to descend, cause the vehicle brake efficacy decline, have a strong impact on the reliability of braking.In order to keep traffic safety, improve the conveying efficiency of automobile, need reduce thermal load to drg processings of lowering the temperature, regulate injection flow rate simultaneously, prolong and cool off duration.At present at the big problem of brake load, people have designed the energy brake auxiliary device, have alleviated the problem of braking heat load to a certain extent, but this system's relative complex, price are higher, and Applicable scope is received certain restriction.And carry out the cooling of drg trickle for the lorry of some low prices, though have certain effect, but because trickle opportunity, often produce the brake wheel strain cracking, and the cooling duration is difficult to guarantee, cause the vehicle can not cruising and braking, propose a kind ofly can be in good time accurately carry out the device that trickle cooling and automatically regulating injection flow rate guarantee the cooling duration brake wheel at this.

Summary of the invention

The purpose of this utility model is to solve frequently braking in the vehicle traveling process, and the drg work-hours is longer, causes the friction coefficient of friction lining sharply to descend, and causes the vehicle brake efficacy decline, has a strong impact on the integrity problem of braking.The scheme that now provides a kind of drg to cool off automatically.

A kind of drg cools off control apparatus automatically, comprise temperature sensor, water level detector, flow control valve, electromagnetic valve, amplifier, A D conv, relay, data memory.Its characteristics are: temperature sensor is installed in the brake wheel cylinder upper end, water level detector is installed in water tank upper, flow control valve, electromagnetic valve place on the water jet standpipe, link to each other with the electromagnetic valve unlatching of control electromagnetic valve of relay, and data memory is stored temperature value.

The utility model is the advantage of prior art relatively:

1, this brake wheel auto-cool system adopts the control of control ECU system implementation, adopts thermocouple temperature sensor, water level detector respectively temperature and elevation of water surface to be carried out conversion, and system has higher reliability.

2, adopt this system and device that brake wheel is cooled off, can realize in good time cooling automatically, guaranteed the normal operation of brake wheel, and the restriction of this system cools temperature can be determined by the reality demarcation.

3, cooling of freight car braking drum and cooling duration problem are big problems that influences safety problem always, and this system has certain meaning and value of service for solving freight car braking drum cooling problem.

Description of drawings

Fig. 1 is the layout scheme drawing of a kind of drg cooling self-checking device described in the utility model.

The specific embodiment

The 1-temperature sensor; The 2-water level detector; 3-amplifies arithmetic and logic unit; 4-A the D conv; 5-ECU; The 6-data memory; The 7-flow control valve; The 8-relay; The 9-electromagnetic valve.

Below in conjunction with implementing accompanying drawing the utility model is described further.

As shown in Figure 1, drg described in the utility model cooling self-checking device comprise temperature sensor 1, water level detector 2, amplify arithmetic and logic unit 3, A D conv 4, ECU5, data memory 6, flow control valve 7, relay 8, electromagnetic valve 9.

Temperature sensor 1 is transformed into voltage signal to the temperature signal of the brake wheel that detection obtains, water level detector 2 becomes voltage signal to the elevation of water surface signal transition of detected water tank, all passing through amplification arithmetic and logic unit 3 amplifies signal, then after A/D converter 4 converts analog quantity to digital quantity, among the input ECU 5, and temperature signal stored maintenance work after convenient etc. through data memory 6.Temperature signal and setting value compare, if setting value less than the signal value that collects, then ECU 5 gives an order, and makes relay 8 action, opens electromagnetic valve 9, and the brake wheel trickle is lowered the temperature.When the brake wheel temperature is lower than setting value, ECU 5 does not send signal, and relay 8 is failure to actuate, and electromagnetic valve 9 is in closed condition.And the water level signal that collects reduces with the reduction injection flow rate of water level gradually by ECU 5 dominant discharge control cocks 7 and then control injection flow rate.

Claims

1. a drg cools off control apparatus automatically, comprise temperature sensor, water level detector, flow control valve, electromagnetic valve, amplifier, A D conv, relay, data memory, its characteristics are: temperature sensor is installed in the brake wheel cylinder upper end, water level detector is installed in water tank upper, flow control valve, electromagnetic valve place on the water jet standpipe, link to each other with the electromagnetic valve unlatching of control electromagnetic valve of relay, data memory is stored temperature value.