CN201778997U - Load-rate measurement device of air compressor - Google Patents
Load-rate measurement device of air compressor Download PDFInfo
- Publication number
- CN201778997U CN201778997U CN2010202962130U CN201020296213U CN201778997U CN 201778997 U CN201778997 U CN 201778997U CN 2010202962130 U CN2010202962130 U CN 2010202962130U CN 201020296213 U CN201020296213 U CN 201020296213U CN 201778997 U CN201778997 U CN 201778997U
- Authority
- CN
- China
- Prior art keywords
- circuit
- air compressor
- load
- flow sensor
- valve assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a load-rate measurement device of an air compressor, which is characterized in that the load-rate measurement device of the air compressor is connected with a flow sensor by a signal wire of an initiating device; the flow sensor is connected to the lower part of a drier with an unloading valve assembly, the air compressor is connected with the drier with an unloading valve assembly by a brake pipeline, and an air storage device is connected with the drier with an unloading valve assembly; and the inner portion of the load-rate measurement device of the air compressor comprises two digital-display timers, a power voltage-stabilizing circuit, a power switching circuit, a sampling hold circuit, a lower-limit setting circuit, a signal comparison circuit, an exciting circuit, and the like. The load-rate measurement device of the utility model has the advantages of high measurement accuracy, good stability, strong anti-jamming capability, and the like, therefore, the load-rate measurement device can satisfy the requirements for measuring and testing the load rate of the air compressor under various complicated working conditions.
Description
Technical field
The utility model relates to a kind of air compressor load factor survey measuring device, belongs to the technical field of air braking system with the air compressor test.
Background technique
Because air braking system has and handles light, reliable operation, is difficult for breaking down, maintains advantages such as convenient, therefore is widely used in load-carrying vehicle, passenger vehicle and automobile train.
The power source of air braking system is an air compressor, and its major function is used for braking system and other devices for producing pressurized air, as air suspension, AMT operating mechanism, air seat, float locomotive cab air-bag, jackshaft differential lock solenoid valve etc. entirely.Along with these new technologies are used, its unit air demand to air compressor is had higher requirement.Because air compressor load factor survey concentrated expression the discharge capacity of air compressor and car load whether each reasonable with coupling between gas consumption of device of air, this performance parameter when for this reason needing measuring vehicle actual travel operating mode, air compressor load factor survey according to actual measurement determines whether the used air compressor discharge capacity of designed load-carrying vehicle is enough, and performance parameter is matched the air compressor that this car is suitable for thus.
Summary of the invention
The purpose of this utility model is to provide a kind of air compressor load factor survey measuring device, its ingenious effective work of air compressor and characteristics that non-productive work hockets utilized, and measuring vehicle is air compressor load factor survey in various actual travel operating modes; Therefore advantages such as whole measurement has precision height, good stability, and antijamming capability is strong can satisfy the test requirements document under the various complex working conditions.
The technical solution of the utility model is achieved in that the air compressor load factor survey measuring device, it is characterized in that: air compressor links to each other with exsiccator band unloading valve assembly by braking line, gas storage device links to each other with exsiccator band unloading valve assembly, flow sensor is connected the bottom of exsiccator band unloading valve assembly, and the air compressor load factor survey measuring device is by flip flop equipment signaling line connection traffic sensing device.
Described air compressor load factor survey measuring device is provided with circuit, signal comparator circuit, exciting circuit, flow sensor by two digital display timers, power supply stabilization circuit, power-switching circuit, sampling hold circuit, lower limits and forms; Two one of digital display timers are the registration of vehicle net cycle times, and another is a record air compressor exhaust unloading time; The fluctuation external voltage source that power supply stabilization circuit will be imported converts the 12V burning voltage to and is sent in the power-switching circuit; Lower limit is provided with circuit and accepts the burning voltage signal that the power-switching circuit transmission comes, and output is through a lower threshold voltage of overtesting affirmation; Flow sensor is converted into voltage signal by institute's air flowing flow in the rubber linking tube, and sampling hold circuit is gathered the normal voltage signal of flow sensor output with higher sample frequency, and sends in the signal comparator circuit; Magnitude of voltage and lower limit that signal comparator circuit is accepted the sampling hold circuit input are provided with the lower threshold that circuit provides, and output two-way logical signal is sent to respectively in net cycle time PT pulse timer or the unloading time PT pulse timer exciting circuit; The corresponding PT pulse timer of the corresponding driving of exciting circuit.
Good effect of the present utility model is the work characteristics at air braking system, i.e. the pressurized air of air compressor generation deposits in the gas cylinder, uses for each consumption gas system, and this is effective work of air compressor; When gas cylinder pressure reaches when necessarily requiring, the pressurized air that air compressor produces directly enters atmosphere, and this is the non-productive work of air compressor; When the tube pressure was reduced to a threshold value, pressurized air stopped to enter atmosphere again, directly is deposited in the gas cylinder; Its ingenious effective work of air compressor and characteristics that non-productive work hockets utilized, measuring vehicle is air compressor load factor survey in various actual travel operating modes, whole measurement has precision height, good stability, with advantages such as antijamming capability are strong, therefore can satisfy the test requirements document under the various complex working conditions.
Description of drawings
Fig. 1 is the pressurized air flow schematic diagram of air compressor output.
Fig. 2 is the internal structure block diagram of air compressor load factor survey measuring device.
Fig. 3 is the circuit diagram of air compressor load factor survey measuring device.
Specific embodiments
Below in conjunction with following each figure the utility model is further described: as shown in Figure 1, the air compressor load factor survey measuring device, it is characterized in that: air compressor 1 links to each other with exsiccator band unloading valve assembly 3 by braking line 2, and gas storage device 8 links to each other with exsiccator band unloading valve assembly 3.Flow sensor 5 is connected the bottom of exsiccator band unloading valve assembly 3, and air compressor load factor survey measuring device 7 is by flip flop equipment signaling line 6 connection traffic sensing devices 5.
Described air compressor load factor survey measuring device is provided with circuit, signal comparator circuit, exciting circuit, flow sensor by two digital display timers, power supply stabilization circuit, power-switching circuit, sampling hold circuit, lower limits and forms; Two one of digital display timers are the registration of vehicle net cycle times, and another is a record air compressor exhaust unloading time; The fluctuation external voltage source that power supply stabilization circuit will be imported converts the 12V burning voltage to and is sent in the power-switching circuit; Lower limit is provided with circuit and accepts the burning voltage signal that the power-switching circuit transmission comes, and output is through a lower threshold voltage of overtesting affirmation; Flow sensor is converted into voltage signal by institute's air flowing flow in the rubber linking tube 4, and sampling hold circuit is gathered the normal voltage signal of flow sensor output with higher sample frequency, and sends in the signal comparator circuit; Magnitude of voltage and lower limit that signal comparator circuit is accepted the sampling hold circuit input are provided with the lower threshold that circuit provides, according to its internal logic algorithm, output two-way logical signal is sent to respectively in net cycle time PT pulse timer or the unloading time PT pulse timer exciting circuit; Exciting circuit drives corresponding PT pulse timer according to logical algorithm is corresponding, thereby realizes air compressor work or the record of unloading condition time according to the gas flow signal.
Air braking system adopts air compressor 1 to provide the pressurized gas of pressurized air, its generation to enter exsiccator band unloading valve assembly 3 by braking line 2.When gas storage device 8 air pressure did not reach designing requirement, air compressor 1 was in the air feed state, and exsiccator band unloading valve assembly 3 is delivered to gas storage device 8 with pressurized gas and stores; When gas storage device 8 air pressure reached designing requirement, air compressor 1 was in unloading condition, and this moment, air compressor provided pressurized air, but exsiccator band unloading valve assembly 3 directly enters atmosphere with pressurized gas by rubber linking tube 4, flow sensor 5.The air compressor load factor survey measuring device is by flow sensor 5, the signal triggering device measurement unloading time that adds up, and is recorded in the timer that the air compressor load factor survey measuring device carries.Another timer record gross vehicle operating time that while air compressor load factor survey measuring device carries,, can measure the air compressor load factor survey of test section according to gross vehicle operating time and air compressor unloading time.
Be illustrated in figure 3 as the circuit diagram of air compressor load factor survey measuring device: two digital display timers are respectively applied for the net cycle time and the air compressor unloading time of registration of vehicle, can be as accurate as 5ms writing time.Because the automobile storage battery situation that exists voltage to beat in charging and discharging process will influence stability and Security that entire measuring device is moved, so this device increased mu balanced circuit, for whole device provides 12V stabilized power source.Power-switching circuit and lower limit are provided with circuit provides 0-5V for inter-process IC threshold value.Sampling hold circuit is gathered the standard signal of flow sensor output with higher sample frequency, sends among the signal IC.The application of sampling hold circuit has guaranteed the amplitude of flux signal near down in limited time, and the output signal of signal IC bigger shake can not occur.Signal processing IC is flux signal and lower limit relatively, the comparison signal of output 0 or 12V, and comparison signal is sent into exciting circuit.When press measure key after, the net cycle time timer picks up counting, when having only flow value to reach in the scope of setting, exciting circuit could drive the timing of air compressor off-load timer.After closing the measurement key, two timers stop timing simultaneously.
Earlier realize that by " startups " button making zero of two timers and timing begin, wait that pair timers stop timing when pressing " end " button, the timer of registration of vehicle net cycle time is worked always in this process.Judge that by flow sensor air compressor is air feed state or unloading condition, as be unloading condition, the timer work of signal comparator circuit and exciting circuit trigger recording air compressor unloading time, its time of adding up is the unloading time of air compressor in net cycle time; Can measure the air compressor load factor survey of vehicle according to these two times at last in the test section.With the characteristics that the effective work and the non-productive work of air compressor hockets, measuring vehicle is air compressor load factor survey in various actual travel operating modes.
Claims (2)
1. air compressor load factor survey measuring device, it is characterized in that: air compressor (1) links to each other with exsiccator band unloading valve assembly (3) by braking line (2), gas storage device (8) links to each other with exsiccator band unloading valve assembly (3), flow sensor (5) is connected the bottom of exsiccator band unloading valve assembly (3), and air compressor load factor survey measuring device (7) is by flip flop equipment signaling line (6) connection traffic sensing device (5).
2. air compressor load factor survey measuring device according to claim 1 is characterized in that described air compressor load factor survey measuring device is provided with circuit, signal comparator circuit, exciting circuit, flow sensor by two digital display timers, power supply stabilization circuit, power-switching circuit, sampling hold circuit, lower limits and forms; Two one of digital display timers are the registration of vehicle net cycle times, and another is a record air compressor exhaust unloading time; The fluctuation external voltage source that power supply stabilization circuit will be imported converts the 12V burning voltage to and is sent in the power-switching circuit; Lower limit is provided with circuit and accepts the burning voltage signal that the power-switching circuit transmission comes, and output is through a lower threshold voltage of overtesting affirmation; Flow sensor is converted into voltage signal by institute's air flowing flow in the rubber linking tube (4), and sampling hold circuit is gathered the normal voltage signal of flow sensor output with higher sample frequency, and sends in the signal comparator circuit; Magnitude of voltage and lower limit that signal comparator circuit is accepted the sampling hold circuit input are provided with the lower threshold that circuit provides, and output two-way logical signal is sent to respectively in net cycle time PT pulse timer or the unloading time PT pulse timer exciting circuit; The corresponding PT pulse timer of the corresponding driving of exciting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202962130U CN201778997U (en) | 2010-08-13 | 2010-08-13 | Load-rate measurement device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202962130U CN201778997U (en) | 2010-08-13 | 2010-08-13 | Load-rate measurement device of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778997U true CN201778997U (en) | 2011-03-30 |
Family
ID=43792209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202962130U Expired - Fee Related CN201778997U (en) | 2010-08-13 | 2010-08-13 | Load-rate measurement device of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778997U (en) |
-
2010
- 2010-08-13 CN CN2010202962130U patent/CN201778997U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101799007B (en) | Air compressor load factor survey meter | |
| CN1915704A (en) | Suspension method for controling module of electromagnetism type magnetic suspension train in normal conduction and low temperature | |
| CN201731902U (en) | Heavy hybrid power electric automobile energy consumption and emission testing system | |
| CN104477048A (en) | Suspension control method of electromagnetic constant conduct low-speed magnetic-levitation train | |
| CN104006292A (en) | Vehicle-mounted liquefied gas cylinder quality safety monitoring device and monitoring method thereof | |
| CN201778997U (en) | Load-rate measurement device of air compressor | |
| CN206856694U (en) | A kind of railcar braking procedure monitoring device | |
| CN201971094U (en) | Instrument of electric motorcycle adopting CAN (Controller Area Network) communication | |
| CN103991558A (en) | Anti-interference torque simulator | |
| CN108819748A (en) | A kind of wireless charging system for electric automobile | |
| CN203093960U (en) | Automobile bumper based on magneto-rheological body | |
| CN110726871B (en) | Fill electric pile measurement calibration equipment | |
| CN201901130U (en) | Crane and brake system thereof | |
| CN201772995U (en) | Spring button tester | |
| CN201484206U (en) | Braking system of electric automobile | |
| CN110562043A (en) | electric automobile braking energy recovery system based on pneumatic motor' double mode | |
| CN203218899U (en) | Intelligent charging system of electric automobile accessory battery | |
| CN201811853U (en) | Single-wheel flat plate-type suspension parameter detecting device | |
| CN201140715Y (en) | Safe driving apparatus of motorcycle | |
| CN203157982U (en) | Electronic parking braking control system and automobile using same | |
| CN101995273A (en) | Automotive actual road particulate emission characteristic measuring device | |
| CN100344486C (en) | Railway carriage derailing detector | |
| CN201268311Y (en) | Tightlock type uncoupling device | |
| CN201121541Y (en) | Car engine management system | |
| CN201628572U (en) | Train load information acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20190813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |