Automatic temperature control device for braking system of wheel excavator

Abstract

The utility model discloses an automatic temperature control device for a braking system of a wheel excavator. The automatic temperature control device comprises a controller, a cooling system, a water replenishing system and a constant temperature system, according to the temperature fed back by each sensor installed in the braking system, the temperature control device automatically cools different brakes to a corresponding degree, maintains the temperature of a brake pad not to be ultrahigh, ensures that the temperature of each brake is in the same range, and ensures that the braking performance of a vehicle is reliable and uniform; in addition, the temperature control device has the functions of automatic deicing, unfreezing and heat preservation, the device failure problem caused by solidification of the storage box, pipeline blockage and the like can be solved, manual operation is not needed, and it is guaranteed that the device can work normally in the low-temperature environment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of temperature control, specifically relates to a wheel excavator braking system automatic temperature control device. BACKGROUND

[0002] The wheel excavator chassis mainly comprises a frame, a gearbox, a front axle, a rear axle, a transmission shaft, a braking system and chassis pipelines, and the vehicle has a large weight and relatively fast speed, the highest speed of the current super-speed wheel excavator can reach 90km / h, in the driving process, the brake pads of the vehicle braking system have a great burden, especially in long-time downhill driving or high-speed driving, frequent brake pressing, high-load work of the brake pads of the braking system and temperature rise, but insufficient cooling, which may finally cause brake pad performance heat attenuation, long braking distance, brake failure and other problems, and seriously threatens the vehicle safety and the personal safety of the driver.

[0003] In addition, in the previous driving process, whether the braking system has a temperature that is too high is judged by the experience of the driver, and the cooling operation also needs to be controlled by the driver, which may cause safety accidents due to forgetfulness and neglect, and manual operation, and manual operation relying on experience cannot ensure that the temperatures of the brake pads of the braking system are in the same range, and the temperature difference is too large, so that the braking performance is also greatly different, thereby affecting the driving safety. Furthermore, in a low-temperature environment, the cooling water storage tank and the pipeline are prone to freezing and solidification, so that the cooling water cannot be sprayed, and the device fails. UTILITARIAN CONTENT

[0004] In order to solve the above problems, the utility model aims at providing a wheel excavator braking system automatic temperature control device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a wheel excavator braking system automatic temperature control device, comprising a controller, a cooling system, a water supplement system and a constant temperature system electrically connected with the controller;

[0006] The cooling system realizes water spraying cooling by intelligently adjusting the water pump outlet pressure and the opening degree of the water spraying electromagnetic valve, and the water supplement system realizes alarm by sending a water level signal through the water level sensor; the constant temperature system compares the temperature sensor and the electric heating pipeline with the calibrated temperature, and realizes device deicing and thawing to maintain constant temperature through the heating electromagnetic valve and the electric heating pipeline.

[0007] Further, the controller is electrically connected with the heater, the water spraying electromagnetic valve, the heating electromagnetic valve, the brake temperature sensor, the water tank temperature sensor, the water level sensor and the electric heating pipeline.

[0008] Further, the cooling system comprises a brake system temperature sensor and a nozzle arranged on the brake system, the nozzle is connected with a water pump through an electric heating pipeline, the water pump is connected with a cooling water storage tank, and a water spraying electromagnetic valve is arranged on the electric heating pipeline.

[0009] Further, independent temperature sensors and nozzles are arranged on each brake of the front axle and the rear axle of the brake system to realize independent cooling.

[0010] Further, the water supplement system comprises a water level sensor arranged in the cooling water storage tank, and the water level sensor is matched with an audible and visual alarm.

[0011] Further, the water level in the cooling water storage tank is reduced to 1 / 4 to trigger an alarm, and the audible and visual alarm is realized by a prompt lamp and a buzzer.

[0012] Further, the constant temperature system comprises a temperature sensor and a heater arranged in the cooling water storage tank, the heater is connected with an engine through a heating pipeline, and a heating electromagnetic valve is further arranged on the heating pipeline.

[0013] Compared with the prior art, the utility model has the following advantages: when the temperature of the vehicle brake system is increased, the temperature control device cools the different brakes to a corresponding degree according to the temperature feedback of each sensor arranged in the brake system, maintains the temperature of the brake pad not to be too high, ensures that the temperature of each brake is in the same range, and guarantees that the vehicle braking performance is reliable and uniform; in addition, the temperature control device has the functions of automatic ice melting and thawing and temperature keeping, can solve the device failure problem caused by the condensation of the storage tank and the pipeline blockage, does not need manual operation, and guarantees that the device can work normally in a low temperature environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the specific embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows, obviously, the drawings described below are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor for those skilled in the art.

[0015] Figure 1 It is the automatic temperature control device connection schematic diagram of the wheel excavator brake system in the utility model;

[0016] Figure 2 It is the cooling work flow chart of the automatic temperature control device in the utility model;

[0017] Figure 3 It is the cooling work logic diagram in the utility model;

[0018] Figure 4 It is the water supplement and constant temperature work logic diagram in the utility model;

[0019] In the figure, 1-cooling water storage tank, 2-heater, 3-water pump, 4-water spray solenoid valve, 5-heating solenoid valve, 6-controller, 7-brake temperature sensor, 8-water tank temperature sensor, 9-water level sensor, 10-electric heating pipeline, 11-nozzle. DETAILED DESCRIPTION

[0020] The utility model will be further explained in connection with the drawings and specific embodiments, but should not be understood as the scope of the subject matter described in the utility model is limited to the following examples, without departing from the above technical ideas of the utility model, all kinds of modifications, replacements and changes made according to ordinary technical knowledge and conventional means in the art are included in the scope of the utility model.

[0021] The automatic temperature control device of the wheel excavator brake system disclosed in the application is suitable for wheel excavators and vehicles with similar structural composition features.The functional elements involved in the device include a cooling water storage tank 1, a heater 2, a water pump 3, a water spray solenoid valve 4, a heating solenoid valve 5, a controller 6, a brake temperature sensor 7, a water tank temperature sensor 8, a water level sensor 9, an electric heating pipeline 10 and a nozzle 11, as shown in the figure. Figure 1 The cooling system realizes water spray cooling by intelligently adjusting the water pressure of the water pump 3 and the opening degree of the water spray solenoid valve 4, and the water replenishment system realizes alarm by sending a water level signal through the water level sensor 9;The constant temperature system compares the temperature sensor 8 and the electric heating pipeline 10 with the calibrated temperature, and realizes constant temperature by the heating solenoid valve 5 and the electric heating pipeline 10.

[0022] The working principle of the application is as follows:

[0023] During vehicle driving, the controller 6 will collect the temperature signal of the brake temperature sensor 7 and compare it with the calibrated temperature, and if the temperature exceeds the set range, the controller 6 will send a signal to the water pump 3 and the water spray solenoid valve 4, the water pump 3 will start, the water spray solenoid valve 4 will open, the cooling water in the storage tank will finally reach the nozzle 11 through the pipeline 10 and be sprayed out, and the brake temperature sensor 7 will be cooled;When the temperature decreases to the calibrated temperature range, the water spray solenoid valve is closed to end the cooling.The cooling working process of the device is shown in the figure. Figure 2

[0024] During the cooling process, the controller 6 will intelligently adjust the water pressure of the water pump 3 and the opening degree of the water spray solenoid valve 4 corresponding to the brake according to the collected temperature signals of each brake on the front axle and the rear axle, and increase or decrease the corresponding water spray amount according to the actual temperature condition, so as to ensure that the temperatures of the brakes on the front axle and the rear axle are basically in the same range, avoid the asynchronous braking performance of the brakes on the front axle and the rear axle, and at the same time save water.The automatic cooling logic is shown in the figure. Figure 3 ​As shown.

[0025] In addition, when the temperature control device is working, the water level in the cooling water storage tank 1 gradually decreases. When the water level drops to 1 / 4, the controller receives the signal from the water level sensor 9 and continuously sends a light reminder to the driver. When the water level drops to the critical value, the controller sends an audible and visual alarm to the driver to remind the driver to add cooling water.

[0026] When the ambient temperature is low, the controller 6 collects the signals from the temperature sensor 8 inside the coolant reservoir 1 and the temperature sensor on the electric heating line 10 in real time and compares them with the calibrated temperature. If the temperature is lower than the set value, the controller 6 sends a signal to the heating solenoid valve 5, which opens to introduce hot water from the engine to heat the coolant reservoir 1. After heating to the set temperature, the controller 6 reduces the opening of the heating solenoid valve 5 to reduce the heating amount, ensuring that the temperature inside the coolant reservoir 1 remains above the freezing point but does not continue to rise. At the same time, the controller 6 also energizes the electric heating line 10 to heat and defrost, ensuring that coolant can be smoothly sprayed out through the nozzles. After the vehicle leaves the low-temperature environment, the heating solenoid valve 5 closes, cutting off the engine hot water and stopping the heating of the coolant reservoir. The controller also stops supplying power to the electric heating line. The low water warning and device defrosting control process is as follows: Figure 4 As shown.

[0027] This device intelligently controls the engine hot water supply to the cooling water storage tank for heating, defrosting, and insulation. In low-temperature environments, the temperature control device automatically defrosts and de-ices the entire system. It uses the real-time temperature of the front and rear axle braking system components to perform intelligent temperature control of the braking system.

[0028] The above provides a detailed description of the automatic temperature control device for the braking system of a wheeled excavator provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. An automatic temperature control device for the braking system of a wheeled excavator, characterized in that: Includes a controller (6), a cooling system, a water supply system, and a constant temperature system that are electrically connected to the controller (6); The cooling system achieves water spraying and cooling by intelligently adjusting the water pressure of the water pump (3) and the opening of the water spray solenoid valve (4). The water replenishment system sends a water level signal through the water level sensor (9) to trigger an alarm. The constant temperature system uses a temperature sensor (8) and an electric heating pipeline (10) to compare with the calibrated temperature, and uses a heating solenoid valve (5) and an electric heating pipeline (10) to achieve de-icing and thawing of the device to maintain a constant temperature.

2. The automatic temperature control device for the braking system of a wheeled excavator according to claim 1, characterized in that: The controller (6) is electrically connected to the heater (2), the water spray solenoid valve (4), the heating solenoid valve (5), the brake temperature sensor (7), the water tank temperature sensor (8), the water level sensor (9), and the electric heating pipeline (10).

3. The automatic temperature control device for the braking system of a wheeled excavator according to claim 1, characterized in that: The cooling system includes a brake system temperature sensor (7) and a nozzle (11) installed on the brake system. The nozzle (11) is connected to a water pump (3) via an electric heating line (10). The water pump (3) is connected to a cooling water storage tank (1). A water spray solenoid valve (4) is also installed on the electric heating line (10).

4. The automatic temperature control device for the braking system of a wheeled excavator according to claim 3, characterized in that: Each brake in the braking system is equipped with an independent temperature sensor (7) and nozzle (11) to achieve individual cooling.

5. The automatic temperature control device for the braking system of a wheeled excavator according to claim 1, characterized in that: The water replenishment system includes a water level sensor (9) installed in the cooling water storage tank (1), and the water level sensor (9) is equipped with an audible and visual alarm.

6. The automatic temperature control device for the braking system of a wheeled excavator according to claim 5, characterized in that: The alarm is triggered when the water level in the cooling water storage tank (1) drops to 1 / 4. The audible and visual alarm is achieved by an indicator light and a buzzer.

7. The automatic temperature control device for the braking system of a wheeled excavator according to claim 1, characterized in that: The constant temperature system includes a temperature sensor (8) and a heater (2) installed in the cooling water storage tank (1). The heater (2) is connected to the engine through a heating line (10). A heating solenoid valve (5) is also installed on the heating line (10).

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