Simple brake friction particulate matter collection system and method

Abstract

The invention relates to the technical field of particulate matter collection, in particular to a simple brake friction particulate matter collection system and method. The device comprises a simulation device, and a particulate matter collection and detection device and a control device which are connected with the simulation device, and the simulation device comprises a motor, a brake disc, a brake pad and a hydraulic mechanism and is used for simulating a brake process; the particulate matter collecting and detecting device comprises a thin film and an analyzer and is used for quantitatively discharging particulate matters; the control device comprises a control unit and is used for controlling the simulation braking process and quantifying the standardization of the cycle test of the discharged particulate matter. The cabin body is additionally arranged to form a sealed cavity, so that particulate matters discharged in the simulation brake process are prevented from being polluted by external particulate matters; a scanning electromobility spectrometer is adopted as an analyzer, and key information such as particle size distribution, mass fraction and quantity concentration of weighed particles can be accurately analyzed; the system has particulate matter flow direction control and storage functions, and the collection and analysis efficiency and convenience are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of particle collection, and in particular to a simple brake friction particle collection system and method. Background Art

[0002] In the research and development of brake systems, the collection and analysis of particulate matter generated by brake friction plays a core role. In response to this challenge, technicians are constantly exploring. For example, Chinese patent CN117405567A discloses a brake particulate emission test system and method. The system can simulate the actual road braking conditions of the vehicle, provide a close-to-real test environment for the testing of brake wear particulate matter, and evaluate the particulate stability of different brake systems at different ambient temperatures. However, the system still has shortcomings: the structure is relatively complex, the operation process is cumbersome, and there is still room for improvement in accurately simulating the braking process and quantifying particulate matter emissions. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a simple brake friction particle collection system and method.

[0004] The technical solution adopted by the present invention is as follows: A simple brake friction particle collection system includes a simulation device, a particle collection and detection device and a control device connected to the simulation device, wherein: The simulation device includes an electric motor, a brake disc, a brake pad and a hydraulic mechanism, wherein: the electric motor adopts a three-phase asynchronous motor, drives the bearing to move through a coupling, and the brake disc is installed at one end of the bearing; the brake pad is driven by the hydraulic mechanism and contacts the brake disc to simulate the braking process; The particle collection and detection device, including a film and an analyzer, is located on the side of the solenoid valve. The film collects the particles generated by the simulated braking process through the pipeline, and detects the particles through the analyzer to quantify the emitted particles. The control device includes a control unit, which is respectively connected to the motor, the hydraulic mechanism and the analyzer, and is used to control the simulated braking process and quantify the cycle test standardization of the emitted particulate matter.

[0005] This technical solution can simulate the braking process and quantify the collection and detection of particulate matter emissions. Specifically, the motor drives the bearing to move through the coupling, and then drives the brake disc to rotate, and the power transmission is realized through the connection of the coupling; the brake pad is driven by the hydraulic mechanism to contact the brake disc to simulate the braking process; the hydraulic mechanism drives the brake pad by changing the pressure of the liquid, so that it produces friction with the brake disc; the film collects the particulate matter generated by the simulated braking process through the pipeline, and the particulate matter will be captured by the film in the pipeline; weighing is first performed, and finally the particulate matter is detected by the analyzer to quantify the particulate matter emissions, and the number, particle size distribution, and mass fraction of the particulate matter are quantified by measuring the properties of the particulate matter; the sensor monitors the speed of the brake disc and the pressure of the brake pad in real time, and feeds this information back to the control unit; the control unit controls the motor, hydraulic mechanism, etc. to achieve precise control of the simulated braking process and standardization of cyclic testing of quantitative particulate matter emissions.

[0006] In addition, the simplified brake friction particle collection system and method according to the present invention may also have the following additional technical features: According to one embodiment of the present invention, the simulation device further includes a chamber body, which covers the space where the brake disc and the brake pad are located and forms a sealed cavity to prevent particulate matter emitted during the simulated braking process from being contaminated by external particulate matter.

[0007] This technical solution constructs a simulation device including a chamber to form a sealed cavity covering the space where the brake disc and the brake pad are located, thereby preventing particulate matter emitted during the simulated braking process from being contaminated by the outside world.

[0008] According to one embodiment of the present invention, the simulation device further comprises a base, the motor and the hydraulic mechanism are respectively mounted on two sides of the base, and the brake disc is suspended through a bearing and is located between the motor and the hydraulic mechanism.

[0009] This technical solution achieves stable installation of the motor and the hydraulic mechanism on the base, as well as suspended setting of the brake disc, by adding a base.

[0010] According to one embodiment of the present invention, the film is connected to a pipe, an air inlet end of the film is located at one side of the simulation device, and an air outlet end of the film is connected to the blower via a solenoid valve.

[0011] This technical solution is connected to the inside of the pipeline through a film, and an air inlet end and an air outlet end are provided to achieve the collection of particulate matter and flow direction control.

[0012] According to an embodiment of the present invention, the solenoid valve is connected to a control unit, and the control unit controls the switch of the solenoid valve and the air pump to control the flow direction of the particulate matter.

[0013] According to one embodiment of the present invention, the particles collected through the film are weighed, and a scanning mobility spectrometer is used to analyze the particle size distribution, mass fraction and number concentration of the particles on the film.

[0014] This technical solution uses a scanning mobility spectrometer through an analyzer to analyze the particle size distribution, mass fraction and number concentration of particulate matter.

[0015] According to one embodiment of the present invention, the solenoid valve moves the particles from one storage box to another storage box through a blower, and the intermediate connecting pipe is timed to switch through the solenoid valve, and the particles are continuously collected on the film through an air pump.

[0016] According to one embodiment of the present invention, the inner wall of the pipeline is provided with an antistatic coating and an anti-corrosion coating.

[0017] This technical solution improves the durability of the pipeline and the accuracy of particle collection by providing an antistatic coating and an anti-corrosion coating on the inner wall of the pipeline.

[0018] To achieve the above object, the present invention also provides a simple method for collecting brake friction particles.

[0019] A simple method for collecting brake friction particles comprises the following steps: S1. The control unit drives the motor and hydraulic mechanism to operate, wherein: The motor drives the bearing and brake disc to rotate through the coupling; The hydraulic mechanism drives the brake pads to contact the brake disc to simulate braking; S2, simulates the particulate matter generated in the bin during the braking process and discharges it through the only pipe connected to the bin; S3, the film collects the particles generated by the brakes through the pipeline, weighs the collected particles, and finally detects the collected particles through the analyzer to analyze the particle size distribution, mass fraction and number concentration; S4, control the opening of the solenoid valve and the air pump, adjust the flow direction of the particles, and blow the particles in the bin to the film for collection.

[0020] This technical solution realizes the whole process of simulating the braking process, collecting, detecting and analyzing particles, and storing particles. Specifically, the control unit drives the motor and hydraulic mechanism to rotate the brake disc and contact the brake pad to simulate the braking process; the particles generated in the bin are connected to a single pipeline for discharge to ensure the centralized collection of particles; the particles generated by braking are collected in the pipeline through a film, and the weighed particles are detected by an analyzer to obtain key information such as particle size distribution, mass fraction and number concentration; by controlling the opening of the solenoid valve and the air pump, the flow direction of the particles is adjusted, and all the particles in the bin are sucked onto the film to complete the collection of particles, ensuring the effective collection and analysis of brake friction particles.

[0021] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention integrates a simulation device, a particle collection and detection device, and a control device, which can accurately control the braking process and achieve effective collection, quantitative detection, and analysis of particles during the simulated braking process; (2) The present invention forms a sealed cavity by adding a chamber body to prevent the particulate matter emitted during the simulated braking process from being contaminated by external particulate matter; by using a scanning mobility spectrometer as an analyzer, it can accurately analyze key information such as the particle size distribution, mass fraction and number concentration of the weighed particulate matter; it has the function of controlling and storing the flow direction of the particulate matter, thereby improving the efficiency and convenience of collection and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is the electrical connection diagram of the present invention.

[0024] In the figure: 1. electric motor; 2. bearing; 3. brake disc; 4. hydraulic mechanism; 5. brake pad; 6. particle collection and detection device; 61. film; 62. analyzer; 7. solenoid valve; 8. blower; 9. storage box; 10. control unit; 11. air pump. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example like Figure 1 and Figure 2As shown, this embodiment provides a simple brake friction particle collection system, including a simulation device, a particle collection and detection device 6 connected to the simulation device, and a control device, wherein: The simulation device includes a motor 1, a brake disc 3, a brake pad 5 and a hydraulic mechanism 4, wherein: the motor 1 is a three-phase asynchronous motor, which drives the bearing 2 to move through a coupling, and the brake disc 3 is installed at one end of the bearing 2; the brake pad 5 is driven by the hydraulic mechanism 4 and contacts the brake disc 3, so as to simulate the braking process; The particle collection and detection device 6, including a film 61 and an analyzer 62, is located on the side of the solenoid valve 7. The film 61 collects the particles generated by the simulated braking process through a pipeline, and detects the particles through the analyzer 62, so as to quantify the emitted particles; The control device includes a control unit 10, which is connected to the motor 1, the hydraulic mechanism 4 and the analyzer 62 respectively, and is used to control the simulated braking process and quantify the cycle test standardization of the emitted particulate matter.

[0027] This technical solution can simulate the braking process and quantify the collection and detection of emitted particulate matter. Specifically, the motor 1 drives the bearing 2 to move through the coupling, and then drives the brake disc 3 to rotate, and the power transmission is realized through the connection of the coupling; the brake pad 5 is driven by the hydraulic mechanism 4 to contact the brake disc 3 to simulate the braking process; the hydraulic mechanism 4 drives the brake pad 5 by changing the pressure of the liquid, so that it generates friction with the brake disc 3; the film 61 collects the particulate matter generated by the simulated braking process through the pipeline, and the particulate matter will be captured by the film 61 in the pipeline; weighing is first performed, and finally the particulate matter is detected by the analyzer 62, which is used to quantify the emitted particulate matter, and its number, particle size distribution, and mass fraction are quantified by measuring the properties of the particulate matter; the sensor monitors the speed of the brake disc 3 and the pressure of the brake pad 5 in real time, and feeds this information back to the control unit 10; the control unit 10 controls the motor 1, the hydraulic mechanism 4, etc. to achieve precise control of the simulated braking process and standardization of the cycle test of quantified emitted particulate matter.

[0028] In addition, the simplified brake friction particle collection system and method according to the present invention may also have the following additional technical features: According to one embodiment of the present invention, the simulation device further comprises a chamber body, which covers the space where the brake disc 3 and the brake pad 5 are located and forms a sealed cavity to prevent the particulate matter discharged during the simulated braking process from being contaminated by external particulate matter.

[0029] This technical solution constructs a simulation device including a chamber to form a sealed cavity covering the space where the brake disc 3 and the brake pad 5 are located, thereby preventing particulate matter emitted during the simulated braking process from being contaminated by the outside world.

[0030] According to one embodiment of the present invention, the simulation device further comprises a base, the motor 1 and the hydraulic mechanism 4 are respectively mounted on both sides of the base, and the brake disc 3 is suspended by the bearing 2 and is located between the motor 1 and the hydraulic mechanism 4 .

[0031] This technical solution achieves stable installation of the motor 1 and the hydraulic mechanism 4 on the base, as well as suspended arrangement of the brake disc 3, by adding a base.

[0032] According to an embodiment of the present invention, the film 61 is connected to the inside of the pipeline, the air inlet end thereof is located at one side of the simulation device, and the air outlet end thereof is connected to the air pump 11 via the solenoid valve 7 .

[0033] This technical solution is connected to the inside of the pipeline through the film 61, and an air inlet end and an air outlet end are provided to achieve the collection of particulate matter and flow direction control.

[0034] According to an embodiment of the present invention, the solenoid valve 7 is connected to a control unit 10, and the control unit 10 controls the switch of the solenoid valve 7 and the air pump 11 to control the flow direction of the particulate matter.

[0035] According to an embodiment of the present invention, the collected particles are weighed through the film 61 , and a scanning mobility spectrometer is used to analyze the particle size distribution, mass fraction and number concentration of the particles on the film 61 .

[0036] This technical solution uses a scanning mobility spectrometer through the analyzer 62 to analyze the particle size distribution, mass fraction and number concentration of the particles.

[0037] According to one embodiment of the present invention, the solenoid valve 7 moves the particles from one storage box 9 to another storage box 9 through the blower 8, and the intermediate connecting pipe is timed to switch through the solenoid valve 7, and the particles are continuously collected on the film 61 through the air pump 11.

[0038] According to one embodiment of the present invention, the inner wall of the pipeline is provided with an antistatic coating and an anti-corrosion coating.

[0039] This technical solution improves the durability of the pipeline and the accuracy of particle collection by providing an antistatic coating and an anti-corrosion coating on the inner wall of the pipeline.

[0040] Example Based on the embodiment, Figure 1 and Figure 2 As shown, this embodiment provides a simple method for collecting brake friction particles, comprising the following steps: S1, the control unit 10 drives the motor 1 and the hydraulic mechanism 4 to operate, wherein: The motor 1 drives the bearing 2 and the brake disc 3 to rotate through the coupling; The hydraulic mechanism 4 drives the brake pad 5 to contact the brake disc 3 to simulate braking; S2, air pump 11, simulates the particulate matter generated in the bin during the braking process, and discharges it through the only pipe connected to the bin; S3, bearing 2, and film 61 collect the particles generated by braking through the pipeline, weigh the collected particles, and finally detect the collected particles through the analyzer 62 to analyze the particle size distribution, mass fraction, and number concentration; S4, brake disc 3, control electromagnetic valve 7 and air pump 11 to open, adjust the flow direction of particles, and blow all particles in the bin to film 61 for collection.

[0041] This technical solution realizes the whole process of simulating the braking process, collecting, detecting and analyzing particles, and storing particles. Specifically, the control unit 10 drives the motor 1 and the hydraulic mechanism 4 to rotate the brake disc 3 and contact the brake pad 5 to simulate the braking process; the particles generated in the bin are connected to a single pipeline for discharge to ensure the centralized collection of particles; the particles generated by braking are collected in the pipeline through the film 61, and the weighed particles are detected by the analyzer 62 to obtain key information such as particle size distribution, mass fraction and number concentration; by controlling the opening of the solenoid valve 7 and the air pump 11, the flow direction of the particles is adjusted, and all the particles in the bin are sucked onto the film 61 to complete the collection of particles, ensuring the effective collection and analysis of brake friction particles.

[0042] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A simple brake friction particle collection system, characterized in that: It comprises a simulation device, a particle collection and detection device (6) connected to the simulation device, and a control device, wherein: The simulation device comprises an electric motor (1), a brake disc (3), a brake pad (5) and a hydraulic mechanism (4), wherein: the electric motor (1) is a three-phase asynchronous motor, which drives the bearing (2) to move through a coupling, and the brake disc (3) is installed at one end of the bearing (2); the brake pad (5) is driven by the hydraulic mechanism (4) and contacts the brake disc (3) to simulate the braking process; The particle collection and detection device (6) comprises a film (61) and an analyzer (62), and is located on the side of the solenoid valve (7). The film (61) collects particles generated by the simulated braking process through a pipeline, and detects the particles through the analyzer (62) to quantify the emitted particles. The control device comprises a control unit (10) which is respectively connected to a motor (1), a hydraulic mechanism (4) and an analyzer (62) and is used for controlling a simulated braking process and quantifying the cycle test standardization of emitted particulate matter.

2. The simplified brake friction particle collection system according to claim 1, characterized in that: The simulation device also includes a chamber body, which covers the space where the brake disc (3) and the brake pad (5) are located and forms a sealed cavity to prevent the particles emitted during the simulated braking process from being contaminated by external particles.

3. The simplified brake friction particle collection system according to claim 1 or 2, characterized in that: The simulation device also includes a base, the motor (1) and the hydraulic mechanism (4) are respectively mounted on both sides of the base, and the brake disc (3) is suspended in the air through the bearing (2) and is located between the motor (1) and the hydraulic mechanism (4).

4. The simplified brake friction particle collection system as claimed in claim 1, characterized in that: The film (61) is connected to the inside of the pipeline, with its air inlet end located at one side of the simulation device, and its air outlet end connected to the air pump (11) via a solenoid valve (7).

5. The simplified brake friction particle collection system as claimed in claim 4, characterized in that: The solenoid valve (7) is connected to a control unit (10), and the control unit (10) controls the switch of the solenoid valve (7) and the air pump (11) to control the flow direction of the particles.

6. The simplified brake friction particle collection system as claimed in claim 4, characterized in that: The particle collection and detection device (6) weighs the collected particles through the film (61) and uses a scanning mobility spectrometer to analyze the particle size distribution, mass fraction and number concentration of the particles on the film (61).

7. The simplified brake friction particle collection system as claimed in claim 5, characterized in that: The solenoid valve (7) transfers the particles from one storage box to another storage box through a blower, and the intermediate connecting pipe is timed to open and close through the solenoid valve (7), and the particles are continuously collected on the film (61) through the air pump (11).

8. The simplified brake friction particle collection system as claimed in claim 1, characterized in that: The inner walls of the pipelines are provided with antistatic coatings and anti-corrosion coatings.

9. A simple method for collecting brake friction particles, using the simple system for collecting brake friction particles as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1, the control unit (10) drives the motor (1) and the hydraulic mechanism (4) to operate, wherein: The motor (1) drives the bearing (2) and the brake disc (3) to rotate through the coupling; The hydraulic mechanism (4) drives the brake pad (5) to contact the brake disc (3) to simulate braking; S2, simulates the particulate matter generated in the bin during the braking process and discharges it through the only pipe connected to the bin; S3, the film (61) collects the particles generated by braking through the pipeline, weighs the collected particles, and finally detects the collected particles through the analyzer (62) to analyze the particle size distribution, mass fraction and number concentration; S4, controlling the opening of the electromagnetic valve (7) and the air pump (11), adjusting the flow direction of the particles, and blowing the particles in the bin body to the film (61) for collection.

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