阅读说明：本技术 一种汽车制动鼓蹄片自控散热及高温报警装置 (Automatic control heat dissipation and high temperature alarm device for automobile brake drum shoes ) 是由 陈志勇 李朝明 梁祺星 郑烁 黄鹏超 陈晖� 杨明柏 于 2020-06-09 设计创作，主要内容包括：本发明汽车制动鼓蹄片自控散热及高温报警装置,包括蓄电池、温度传感器、温度控制器、鼓风机、声光报警装置,蓄电池通过导线与温度控制器连接,货车两后轮的制动鼓蹄片内侧壁设有传感器定位孔,温度传感器分别设置在传感器定位孔中,温度传感器通过传感器电路与温度控制器连接,鼓风机分别安装在货车两后轮的制动鼓蹄片内侧的制动底板内侧表面,鼓风机通过鼓风机电路与温度控制器连接,温度控制器控制鼓风机工作时鼓风机朝向制动鼓蹄片方向吹风,声光报警装置通过报警电路与温度控制器连接。采用本发明能够实现对汽车制动鼓的自控散热及高温报警,达到主动预防交通事故的目的。(The invention discloses an automatic control heat dissipation and high temperature alarm device for automobile brake drum shoes, which comprises a storage battery, a temperature sensor, a temperature controller, an air blower and an audible and visual alarm device, wherein the storage battery is connected with the temperature controller through a lead, sensor positioning holes are formed in the inner side walls of the brake drum shoes of two rear wheels of a truck, the temperature sensor is respectively arranged in the sensor positioning holes, the temperature sensor is connected with the temperature controller through a sensor circuit, the air blower is respectively arranged on the inner side surfaces of brake bottom plates on the inner sides of the brake drum shoes of the two rear wheels of the truck, the air blower is connected with the temperature controller through an air blower circuit, the temperature controller controls the air blower to blow air towards the direction of the brake drum shoes when the air blower works, and the audible. The invention can realize automatic control heat dissipation and high temperature alarm of the automobile brake drum, and achieve the purpose of actively preventing traffic accidents.)

1. An automatic control heat dissipation and high temperature alarm device for automobile brake drum shoes is characterized by comprising a storage battery (5), a temperature sensor (11), a temperature controller (6), an air blower (3) and an audible and visual alarm device (7), wherein the storage battery (5) is connected with the temperature controller (6) through a lead, the inner side walls of the brake drum shoes (12) of two rear wheels of a truck are provided with sensor positioning holes (15), the temperature sensors (11) are respectively arranged in the sensor positioning holes (15), the temperature sensor (11) is connected with the temperature controller (6) through a sensor circuit (2), the air blower (3) is respectively arranged on the inner side surfaces of brake bottom plates (13) on the inner sides of the brake drum shoes (12) of the two rear wheels of the truck, the air blower (3) is connected with the temperature controller (6) through an air blower circuit (4), and the temperature controller (6) controls the air blower (3) to blow air towards the brake drum shoes (12) when the air blower (3) works, the sound and light alarm device (7) is connected with the temperature controller (6) through an alarm circuit.

2. The automatic heat dissipation and high temperature alarm device for the brake drum shoes of the automobile as claimed in claim 1, wherein the blower mounting position is provided in the middle of the inner side surface of the brake base plate (13), and the blower (3) is connected to the blower mounting position by a screw ii (14).

3. The automatic control heat dissipation and high temperature alarm device for the automobile brake drum shoes as claimed in claim 1, wherein the temperature controller (6) receives the temperature signal from the temperature sensor (11) and converts the temperature signal into a voltage signal, the temperature controller (6) processes and judges the voltage signal, and the temperature controller (6) outputs a control signal to a relay switch of the blower (3) to further control the blower (3) to operate.

4. The automatic control heat dissipation and high temperature alarm device for the automobile brake drum shoes as claimed in claim 1, wherein the sound and light alarm device (7) is disposed in a cab of a truck, when the temperature sensor (11) detects that the temperature value of the brake drum shoes (12) reaches the pre-warning temperature value set by the temperature controller (6), the temperature controller (6) automatically controls a relay switch of the sound and light alarm device (7) to enable the sound and light alarm device (7) to work.

Technical Field

The invention relates to the technical field of automobile brake, in particular to an automatic control heat dissipation and high temperature alarm device for an automobile brake drum shoe.

Background

China is a mountainous country, and about 75% of the territorial area of China is mountainous or hilly terrain, so long-distance vehicles often need long-time braking. In addition, due to the fact that the overload and overrun conditions of vehicles caused by various subjective and objective factors are very common, the accidents caused by the brake failure factors are found to be the most according to the statistical traffic accident reasons, the accidents account for 42% of the total number of the accidents according to statistics of relevant departments, most of the accidents are caused by the fact that a brake system has a heat fading phenomenon, and most of the accident-causing vehicles are large and medium-sized vehicles provided with drum brakes.

The automobile brake drum is used as a brake device of an automobile, and directly influences the safety of the automobile. The large and medium-sized automobiles generate high temperature on the brake drum and the brake pad due to frequent braking or long-time continuous braking in a mountain area. When the high temperature heat accumulated in the brake drum exceeds a certain limit, many related failures of the brake will inevitably be caused: such as: the brake pad and the brake drum are quickly worn, and even a driving accident of brake failure caused by high heat fading effect due to high temperature of the shoe of the brake drum can be caused.

Under the condition of high temperature, the drum brake has great image on the braking efficiency of the automobile and even the safety performance of the automobile, and the current schemes for solving the heat dissipation problem at home and abroad comprise the following steps: 1. the vehicle is provided with a water tank which uses water to radiate heat of the brake drum; 2. an automobile speed reducing device is equipped, such as an automobile retarder, exhaust braking is adopted, and the like; 3. in the case of a vehicle requiring continuous braking, the driver drives slowly using the low gear as much as possible. Among the three schemes, the first scheme has the defect of poor reliability of a water-cooling heat dissipation mode; the second scheme adopts a high-tech technology, has high cost, can be only used on a high-grade truck at present and is difficult to popularize in a short time; the third scheme is the most original passive processing method, although the third scheme is effective, the driving experience and technical requirements of drivers are higher in practice, and the overload phenomenon of the vehicle is common at present, the third scheme only addresses the symptoms but not the root causes, and the traffic accidents are also occasionally caused and cannot be completely avoided. Therefore, a better scheme is designed to prevent the traffic safety accidents, and good news can be brought to the society.

Disclosure of Invention

The invention aims to provide a self-control heat dissipation and high-temperature alarm device for a shoe of an automobile brake drum, aiming at the defects in the prior art, so as to realize self-control heat dissipation and high-temperature alarm for the automobile brake drum and achieve the purpose of actively preventing traffic accidents.

The technical scheme adopted by the invention for realizing the purpose is as follows: the utility model provides a car brake drum shoe automatic control heat dissipation and high temperature alarm device, which comprises a storage battery, a weighing sensor and a temperature sensor, a temperature controller, the air-blower, audible and visual alarm device, the battery passes through the wire and is connected with temperature controller, the brake drum shoe inside wall of two rear wheels of freight train is equipped with the sensor locating hole, temperature sensor sets up respectively in the sensor locating hole, temperature sensor passes through sensor circuit and is connected with temperature controller, the air-blower is installed respectively at the inboard surface of the inboard brake shoe of the brake drum shoe of two rear wheels of freight train, the air-blower passes through the air-blower circuit and is connected with temperature controller, temperature controller control air-blower during operation air-blower is bloied towards brake drum shoe direction, audible and visual alarm device passes through alarm.

The further technical scheme of the invention is as follows: and the middle part of the inner side surface of the brake bottom plate is provided with an air blower mounting position, and the air blower is connected to the air blower mounting position through a screw II.

The further technical scheme of the invention is as follows: the temperature controller receives a temperature signal of the temperature sensor and converts the temperature signal into a voltage signal, the temperature controller processes and judges the voltage signal, and the temperature controller outputs a control signal to a relay switch of the air blower so as to control the air blower to work.

The further technical scheme of the invention is as follows: the sound and light alarm device is arranged in a cab of the truck, when the temperature sensor detects that the temperature value of the shoe of the brake drum reaches the preset early warning temperature value of the temperature controller, the temperature controller automatically controls a relay switch of the sound and light alarm device to enable the sound and light alarm device to work.

The automatic control heat dissipation and high temperature alarm device for the automobile brake drum shoe has the following beneficial effects:

1. the system is completely and automatically controlled, the brake drum of the wheel is independently controlled and radiated, and the system is also provided with a monitoring and displaying function, so that the temperature condition of the shoe of the brake drum is displayed in real time, and safety accidents are actively prevented;

2. the heat dissipation is rapid, the performance is reliable, the air blower adopts an air cooling mode, the air cooling and heat dissipation are relatively balanced, the uniform and consistent cold and heat of each particle of the brake drum can be completely ensured, the defect of serious deformation of the brake drum is effectively avoided, and the service life of accessory materials such as the brake drum, a brake pad and the like is greatly prolonged; the trouble that water often flows into the brake drum from a detection hole or the edge of the brake drum in the traditional water-cooling heat dissipation mode and the water tank is free of water is avoided, and the potential safety hazard of water attenuation during service braking is eliminated;

3. the invention is beneficial to keeping the braking efficiency of the vehicle and reducing the maintenance workload of the brake, because the blower is arranged on the inner side surface of the braking bottom plate, the blower exhausts air forcibly from inside to outside when working, a large amount of brake abrasive dust and dust can be discharged from the brake drum in time, and the surface of the friction pair is cooled and cleaned;

4. the invention has simple structure, convenient installation, low manufacturing cost (equivalent to the manufacturing cost of the flushing heat radiating device), easy popularization and application and wide market prospect.

The automatic heat dissipation and high temperature alarm device for the automobile brake drum shoe of the invention is further described with reference to the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic diagram of a material object circuit connection of the automatic heat dissipation and high temperature alarm device for the shoe of the automobile brake drum of the present invention;

FIG. 2 is a schematic circuit diagram of the automatic heat dissipation and high temperature alarm device for the shoe of the automobile brake drum according to the present invention;

FIG. 3 is a schematic view of a single brake drum coupled to a blower;

FIG. 4 is a sectional view taken along line B-B of FIG. 3;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged partial view at C of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 6 from direction D; (ii) a

The reference numbers illustrate: 1-a rear drive axle, 2-a sensor circuit, 3-a blower, 4-a blower circuit, 5-a storage battery, 6-a temperature controller, 7-an audible and visual alarm device, 8-a brake drum inspection hole, 9-an alarm flasher, 10-a bulb, 11-a temperature sensor, 12-a brake drum shoe, 13-a brake bottom plate, 14-a screw II, 15-a sensor positioning hole, and 16-a screw I, 17-a gasket.

Detailed Description

As shown in fig. 1 to 7, the automatic heat dissipation and high temperature alarm device for the automobile brake drum shoe comprises a storage battery 5, a temperature sensor 11, a temperature controller 6, a blower 3 and an audible and visual alarm device 7. The storage battery 5 is connected with the temperature controller 6 through a lead, and the storage battery 5 provides power for the device. As shown in fig. 5 to 7, the inner side walls of the brake drum shoes 12 of the two rear wheels of the truck are provided with sensor positioning holes 15, the temperature sensors 11 are respectively arranged in the sensor positioning holes 15, the temperature sensors 11 are connected with the temperature controller 6 through the sensor circuit 2, the sensor circuit 2 is positioned on the inner side walls of the brake drum shoes 12 through screws i 16 and washers 17, and the temperature controller 6 is an existing device directly purchased and will not be described in detail herein. As shown in fig. 1, 3 and 4, the blower 3 is respectively installed on the inner side surfaces of the brake base plates 13 on the inner sides of the brake drum shoes 12 of the two rear wheels of the truck, in this embodiment, a blower installation position is arranged in the middle of the inner side surfaces of the brake base plates 13, and the blower 3 is connected to the blower installation position through a screw ii 14. The blower 3 is connected to a temperature controller 6 via a blower circuit 4. The temperature controller 6 controls the blower 3 to blow air towards the direction of the brake drum shoes 12 when the blower 3 works, and the sound and light alarm device 7 is connected with the temperature controller 6 through an alarm circuit.

In the running process of the truck, the temperature sensor 11 detects the temperature of the brake drum shoes 12 in real time, detected temperature signals are transmitted to the temperature controller 6, the temperature controller 6 receives the temperature signals of the temperature sensor 11 and converts the temperature signals into voltage signals, and the temperature controller 6 processes and judges the voltage signals. When the temperature of the brake drum shoes 12 reaches a set value T (T can be set to different values according to different vehicle types or brake drum shoe structures), the temperature controller 6 controls the blower 3 to start working, and the temperature controller 6 outputs control signals to a relay switch of the blower 3 to further control the blower 3 to work. The temperature controller 6 processes and judges the voltage signal, namely, whether the temperature value actually detected by the temperature sensor 11 reaches a set value T or not is judged, if the temperature value reaches the set value T, the blower 3 is controlled to work, the automobile brake drum is cooled, and if the temperature value does not reach the set value T, the blower 3 is not controlled to work temporarily. The sound-light alarm device 7 is arranged in a cab of a truck, when the temperature sensor 11 detects that the temperature value of the brake drum shoe 12 reaches the early warning temperature value set by the temperature controller 6, the temperature controller 6 automatically controls a relay switch of the sound-light alarm device 7 to enable the sound-light alarm device 7 to work, a bulb 10 of the sound-light alarm device 7 is on, and an alarm flasher 9 of the sound-light alarm device 7 continuously flashes to remind a driver of taking corresponding safety measures in advance to ensure driving safety.

The above embodiments are only preferred embodiments of the present invention, and the structure of the present invention is not limited to the forms of the above embodiments, and any modifications, equivalents and the like within the spirit and principle of the present invention should be included in the protection scope of the present invention.