CN216185060U - Wheel limit initiative cooling system based on freight train drum brake - Google Patents
Wheel limit initiative cooling system based on freight train drum brake Download PDFInfo
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- CN216185060U CN216185060U CN202122787216.5U CN202122787216U CN216185060U CN 216185060 U CN216185060 U CN 216185060U CN 202122787216 U CN202122787216 U CN 202122787216U CN 216185060 U CN216185060 U CN 216185060U
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- brake
- cooling
- level sensor
- drum
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- 238000001816 cooling Methods 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000003595 mist Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000000110 cooling liquid Substances 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 17
- 239000002826 coolant Substances 0.000 claims description 11
- 238000007667 floating Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 238000009529 body temperature measurement Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a wheel edge active cooling system based on a truck drum brake, which comprises a brake drum, a control system and a cooling system, wherein the brake drum is connected with the control system; the control system comprises a controller, a water level sensor, an infrared temperature sensor and an alarm buzzer, wherein the controller is used for carrying out control commands on the cooling system through electric signals acquired and converted by the water level sensor and the infrared temperature sensor; the wheel edge active cooling system provided by the utility model can effectively reduce the temperature of the brake drum in long-time braking by adopting a mode of spraying water mist on the outer surface of the brake drum, can reduce the temperature to about 150 ℃ when the temperature of the vehicle brake system is overhigh, and ensures the performance of the vehicle brake system and the running safety of a vehicle.
Description
Technical Field
The utility model relates to the technical field of truck brake drum cooling systems, in particular to a wheel edge active cooling system based on a truck drum brake.
Background
The truck transportation bears the important task of freight transportation with the advantages of high trafficability, convenient allocation and transportation and the like. However, the severity and quantity of the traffic accidents caused by the vehicle are far higher than those caused by the domestic vehicle, wherein the brake system is one of the brake systems with the highest use frequency, and the guarantee of the braking performance of the brake is an effective way for improving the safety of the truck.
The road condition of China is complex, and the motor vehicle needs to perform a large amount of braking operation when running on special roads such as mountainous and hilly lands and highlands and passing long downhill sections. Since the truck is heavy, the truck is sometimes full or even overloaded for economic effect, which presents a great challenge to the braking system of the truck. Also according to studies that have been previously made: when the temperature of the brake reaches 250 ℃, the braking efficiency and performance of the brake can be reduced by 10-20%, when the temperature of a brake drum in the brake rises to 600 ℃, the brake can almost lose the braking capability, and meanwhile, the brake shoe can be broken into pieces and other failure phenomena can occur, and at the moment, the brake failure phenomena are very obvious and easily cause traffic accidents. The reason why most trucks encounter traffic hazard accidents on extreme road conditions such as long downhill is brake failure caused by temperature rise of drum brakes in long-time and high-frequency braking processes. Therefore, the configuration of the cooling device is necessary and critical.
At present, trucks in China mainly adopt the following schemes in the aspect of preventing heat fading of brakes:
(1) improved brake structure and friction material
The performance and service life of the brake are mainly determined by the structural design of the brake system and the heat capacity and the heat fading resistance of the friction material. Before designing the brake system, the brake efficiency of the brake system can be obviously improved by selecting and widening the friction lining, arranging the vent holes and selecting a material with better thermal property. The disadvantages of this solution are that the requirements for materials are very demanding, the costs are high, the subsequent validation also requires a long time, and existing vehicles cannot be refitted. It does not have the condition of rapid and wide-range preparation.
(2) Additionally provided with auxiliary braking device
In order to reduce the work of the brake system to reduce the heat generation and slow down the temperature rise of the brake system, most trucks are currently equipped with auxiliary equipment such as an engine reduction device, a truck exhaust brake device, and the like. The disadvantage of this scheme is that the problem of cooling down can not be solved at all, because the auxiliary braking device has limited deceleration capacity, under the extreme condition such as facing long downhill braking, the braking device still can produce a large amount of heat that can't dissipate and lose in time and reduce the device braking performance, forms unsafe factor.
(3) Cooling device for installing brake system
The cooling mode of the traditional cooling system is divided into air cooling and liquid cooling. Air cooling mainly represents forced air cooling heat dissipation, and is realized on the outer wall of the existing brake drum through regularly distributed radially-unfolded fins, but the cooling effect is poor, and the air cooling is widely applied to household small automobiles with lighter load occasions. The main problems of the open type liquid cooling device are that a control switch is still manually and automatically judged by a driver at present, so that misjudgment and missing are caused, and cooling liquid is left on the road surface due to inaccurate manual judgment, so that traffic safety of subsequent roads is influenced, and the use of parts of areas is forbidden; the closed liquid cooling device cannot be successfully popularized due to very high assembly precision and installation cost, and is basically applied to small vehicles.
Based on the various defects and limitations existing in the prior art, the wheel edge active cooling system is designed, the prior open type liquid cooling device is improved, a high-temperature alarm device and a low-water level alarm device are additionally designed, and a driver is guaranteed to master the condition of a vehicle braking system without interfering the road traffic safety when a spray head of a water cooling device is replaced by a spray design to achieve the cooling and cooling of a braking device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wheel edge active cooling system based on a drum brake of a truck, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a wheel edge active cooling system based on a truck drum brake comprises a brake drum, a control system and a cooling system; wherein the content of the first and second substances,
the control system comprises a controller, a water level sensor, an infrared temperature sensor and an alarm buzzer, wherein the controller is used for carrying out control commands on the cooling system through electric signals acquired and converted by the water level sensor and the infrared temperature sensor;
the cooling system comprises a cooling liquid tank and an atomizing spray head used for spraying water mist to the brake drum and the friction lining, wherein the cooling liquid tank is connected with a plurality of cooling liquid supply pipelines through an electronic water pump, the cooling liquid supply pipelines are connected with the atomizing spray head, and each cooling liquid supply pipeline is provided with an electronic water valve.
As a further scheme of the utility model: the water level sensor is a floating ball liquid level sensor and is arranged inside the cooling liquid tank, the floating ball liquid level sensor is used for detecting the surplus of cooling water in the cooling liquid tank, when the water in the cooling liquid tank gradually drops below a set alarm water level along with use, the water level sensor can be connected with a switch to trigger a water shortage alarm, a driver can quickly and conveniently master the water level condition in the cooling liquid tank so as to timely replenish water, the water level sensor judges whether the potential is connected or disconnected through the height of the water level, the design of the floating ball liquid level sensor is simple and reliable, and the measurement precision also meets the monitoring requirement.
As a still further scheme of the utility model: the cooling liquid tank is fixed on the side of a girder of the truck, and the position and the size of the cooling liquid tank are determined by the style of the truck.
As a still further scheme of the utility model: the infrared temperature sensor is connected with a detector through an infrared temperature measuring circuit, the detector is used for continuously collecting the instantaneous temperature of a contact friction area of a brake drum shell and a friction lining, the vehicle can be often in a bumpy state, a fixed temperature measuring device is easy to loose in contact with the brake drum, so that a temperature measuring result is influenced, if the temperature measuring device is in contact with the brake drum, the brake drum rotating at a high speed is easy to rub with the fixed temperature measuring device, so that the temperature measuring device is abraded, the infrared temperature sensor is a common remote temperature measuring device, continuous high-precision temperature measurement can be realized, and electric signal transmission is realized.
As a still further scheme of the utility model: the cooling liquid supply pipeline and the atomizing nozzles are rigidly connected to a girder of the truck, a plurality of atomizing nozzles are arranged, the distance between every two adjacent atomizing nozzles is 0.12-0.15m, and the atomizing nozzles are pressure type atomizing nozzles.
As a still further scheme of the utility model: the controller is respectively connected with the alarm buzzer, the water level sensor, the electronic water pump, the electronic water valve and the infrared temperature sensor, the controller is connected with an external power supply, the controller is a 51 single chip microcomputer, the controller receives temperature signals transmitted by the infrared temperature sensor and controls the buzzer alarm, the electronic water pump and the electronic water valve of each water channel to be opened and closed, and the 51 single chip microcomputer can output execution signals according to the content of each signal channel and programs input in advance.
Compared with the prior art, the utility model has the beneficial effects that:
the wheel edge active cooling system provided by the utility model can effectively reduce the temperature of the brake drum in long-time braking by adopting a water mist spraying mode on the outer surface of the brake drum, the wheel edge active cooling system can be cooled to about 150 ℃ when the temperature of the vehicle brake system is overhigh, the performance of the vehicle brake system and the running safety of a vehicle are ensured, the vehicle brake system can be always kept in a safe range in the continuous working time of the wheel edge active cooling system, an alarm of the wheel edge active cooling system can clearly remind a driver of the working state of the cooling system and the working state of the brake drum, the driver can timely master the states of the brake system and the cooling system, and the traffic safety is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a wheel side active cooling system based on a drum brake of a truck.
Fig. 2 is a schematic diagram of a wheel side active cooling system based on a drum brake of a truck.
In the figure: 1. a coolant tank; 2. an infrared temperature measurement circuit; 3. a coolant supply line; 4. and a brake drum.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a wheel-side active cooling system based on a drum brake of a truck includes a brake drum 4, a control system, and a cooling system; the control system comprises a controller, a water level sensor, an infrared temperature sensor and an alarm buzzer, wherein the controller is used for carrying out control commands on the cooling system through electric signals acquired and converted by the water level sensor and the infrared temperature sensor; the cooling system comprises a cooling liquid tank 1 and an atomizing spray head used for spraying water mist to the brake drum 4 and the friction lining, the cooling liquid tank 1 is connected with a plurality of cooling liquid supply pipelines 3 through an electronic water pump, the cooling liquid supply pipelines 3 are connected with the atomizing spray head, and each cooling liquid supply pipeline 3 is provided with an electronic water valve.
Water level sensor is floater level sensor, and water level sensor sets up inside coolant liquid tank 1, floater level sensor is used for detecting the surplus of coolant liquid tank 1 internal cooling water, water in coolant liquid tank 1 descends gradually along with the use and is less than when the warning water level of settlement, water level sensor will switch on the switch and trigger the alarm that lacks water, the driver just can conveniently master the water level condition in coolant liquid tank 1 fast so that in time moisturizing, water level sensor judges the current potential through floating the height on the liquid level and is in the switch-on or the disconnection, and floater level sensor's design is simple reliable, measurement accuracy also satisfies the monitoring requirement.
The coolant tank 1 is fixed on the side of a girder of the truck, and the position and the size of the coolant tank 1 are determined by the style of the truck.
Infrared temperature sensor is connected with the detector through infrared temperature measurement circuit 2, the detector is used for gathering brake drum shell and friction lining contact friction area's instantaneous temperature lastingly, because the vehicle often can be in the state of jolting, fixed temperature measuring device is not hard up with brake drum 4's contact easily, thereby influence the temperature measurement result, and if temperature measuring device keeps the contact with the brake drum, the mutual friction takes place with fixed temperature measuring device easily for the high-speed rotatory brake drum, thereby lead to temperature measuring device to receive wearing and tearing, and infrared temperature sensor is then common remote temperature measuring device, can realize lasting higher accuracy temperature measurement, and with signal of telecommunication transmission.
In order to ensure the working reliability of a cooling system, a cooling liquid supply pipeline and a plurality of atomizing nozzles are rigidly connected to a girder of a truck, the relative position of a cooling device and a brake device is kept fixed, in order to avoid the problems that the interval between two atomizing nozzles is too large, a weak spraying area appears in the middle, or too much overlapping area interferes to cause waste, the positions of the atomizing nozzles are comprehensively considered, the interval between two adjacent atomizing nozzles is 0.12-0.15m, the atomizing nozzles are pressure type atomizing nozzles, the direct current water column is finely divided into small water beads by the atomizing nozzles which are scattered outside the brake drum in a foggy manner, cooling water mist is scattered on the surface of the brake drum at a proper speed and then is subjected to heat exchange and heat dissipation, the surface of the brake drum is provided with a water film, so that the cooling efficiency is improved, the problem of thermal stress deformation caused by uneven cooling and heating in the cooling process is reduced, the consumption is saved as far as possible on the premise of ensuring the cooling effect, and the water marks left on the ground are reduced, thereby being beneficial to the traffic safety of vehicles afterwards.
The controller respectively with warning bee calling organ, level sensor, electronic water pump, electron water valve and infrared temperature sensor electric connection, and the controller is connected with external power supply, and the controller is 51 singlechips, and the temperature signal of infrared temperature sensor transmission is received to the controller, the switching of control buzzing siren, electronic water pump and each water route electron water valve, 51 singlechips can realize according to the program output execution signal of inputing in advance of the content of each way signal.
The system selects a storage battery with the rated voltage of 24V as a power supply to supply power to electronic equipment in the system, if a vehicle does not have enough space for placing the power supply, the system can also be directly connected with the vehicle storage battery, and a filter screen is arranged in front of a water outlet of the cooling liquid tank 1 to prevent sundries in filtered cooling water from blocking an atomizing nozzle.
The working principle of the utility model is as follows:
during operation, infrared temperature sensor will gather brake drum shell and friction lining contact friction area's instantaneous temperature lastingly, and the instantaneous temperature signal who gathers infrared temperature sensor transmits for corresponding controller, and the controller sends corresponding signal according to the instantaneous temperature data that the collection obtained, compares the temperature data that gathers infrared temperature sensor and the temperature value that has set up in the controller that corresponds and judges: when the temperature data detected by the infrared temperature sensor is higher than the starting temperature value set by the controller, the controller transmits a signal to the electronic water pump and the electronic water valve to command the electronic water pump and the electronic water valve to start, and water mist is sprayed out to cool the brake drum; when the temperature data detected by the infrared temperature sensor is lower than the finishing temperature value set by the controller, the controller finishes transmitting the working signal, the electronic water pump and the electronic water valve are closed, the water mist form has the advantages that the cooling capacity is improved, meanwhile, a higher energy efficiency ratio can be obtained by improving the contact area of water and the shell of the brake drum, the consumption of cooling water is saved, residual water left on the ground after the cooling process is finished is reduced, the running safety of a vehicle is ensured, compared with the traditional direct water dripping mode, the ideal effect on the cooling capacity and the safety is achieved.
The floating ball liquid level sensor is installed in the cooling liquid tank 1 and used for detecting the surplus of cooling water in the cooling liquid tank 1, when the water in the cooling liquid tank 1 gradually drops below a set alarm water level along with use, the water level sensor can be connected with a switch to trigger a water shortage alarm, a driver can quickly and conveniently master the water level condition in the cooling liquid tank 1 so as to supplement water in time, the water level sensor judges whether the potential is connected or disconnected through the height of the floating ball liquid level sensor on the liquid level, the floating ball liquid level sensor is simple and reliable in design, and the measurement precision also meets the monitoring requirement.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. A wheel edge active cooling system based on a truck drum brake comprises a brake drum (4), and is characterized by further comprising a control system and a cooling system; wherein the content of the first and second substances,
the control system comprises a controller, a water level sensor, an infrared temperature sensor and an alarm buzzer, wherein the controller is used for carrying out control commands on the cooling system through electric signals acquired and converted by the water level sensor and the infrared temperature sensor;
the cooling system comprises a cooling liquid tank (1) and an atomizing spray head used for spraying water mist to the brake drum (4) and the friction lining, wherein the cooling liquid tank (1) is connected with a plurality of cooling liquid supply pipelines (3) through an electronic water pump, the cooling liquid supply pipelines (3) are connected with the atomizing spray head, and each cooling liquid supply pipeline (3) is provided with an electronic water valve.
2. The active wheel-rim cooling system based on the drum brake of the freight car as claimed in claim 1, wherein the water level sensor is a floating ball liquid level sensor, and the water level sensor is disposed inside the coolant tank (1).
3. A truck drum brake based wheel rim active cooling system according to claim 1, characterized in that the coolant tank (1) is fixed to the truck beam rim.
4. The active cooling system for the wheel rim based on the drum brake of the freight car as claimed in claim 1, wherein the infrared temperature sensor is connected with a detector through an infrared temperature measurement circuit (2), and the detector is used for continuously collecting the instantaneous temperature of the friction area where the shell of the brake drum contacts with the friction lining.
5. The active wheel rim cooling system based on the drum brake of the truck as claimed in claim 1, wherein the coolant supply line and the plurality of atomizing nozzles are rigidly connected to a truck beam, the distance between two adjacent atomizing nozzles is 0.12-0.15m, and the atomizing nozzles are pressure type atomizing nozzles.
6. The active wheel rim cooling system based on the drum brake of the truck as claimed in claim 1, wherein the controller is electrically connected to the alarm buzzer, the water level sensor, the electronic water pump, the electronic water valve and the infrared temperature sensor, respectively, and the controller is connected to an external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122787216.5U CN216185060U (en) | 2021-11-15 | 2021-11-15 | Wheel limit initiative cooling system based on freight train drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122787216.5U CN216185060U (en) | 2021-11-15 | 2021-11-15 | Wheel limit initiative cooling system based on freight train drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216185060U true CN216185060U (en) | 2022-04-05 |
Family
ID=80910812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122787216.5U Expired - Fee Related CN216185060U (en) | 2021-11-15 | 2021-11-15 | Wheel limit initiative cooling system based on freight train drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216185060U (en) |
-
2021
- 2021-11-15 CN CN202122787216.5U patent/CN216185060U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220405 |