CN202593498U - Air brake air-supply device - Google Patents
Air brake air-supply device Download PDFInfo
- Publication number
- CN202593498U CN202593498U CN 201220274665 CN201220274665U CN202593498U CN 202593498 U CN202593498 U CN 202593498U CN 201220274665 CN201220274665 CN 201220274665 CN 201220274665 U CN201220274665 U CN 201220274665U CN 202593498 U CN202593498 U CN 202593498U
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- China
- Prior art keywords
- air
- drive motor
- air pressure
- control circuit
- gas
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses an air brake air-supply device capable of automatically sensing change of air pressure in an air storage cylinder and automatically stopping a blast pump when the air pressure reaches a threshold value. The air brake air-supply device comprises the air storage cylinder, the blast pump, a driving motor of the blast pump, an air pressure control circuit and a driving motor control device, an air inlet and an air outlet are arranged at two ends of the air storage cylinder respectively, an air outlet of the blast pump is communicated with the air inlet of the air storage cylinder, an air pressure sensor is arranged on the air storage cylinder and is close to the air outlet of the air storage cylinder, an output end of the air pressure sensor is connected with a signal input end of the air pressure control circuit, a linked switch controlled by the air pressure control circuit is serially connected into an output control loop of the driving motor control device, and output ends of the driving motor control device are connected with corresponding input ends of the driving motor respectively. The air brake air-supply device is mainly used for various load-carrying vehicles such as coaches and trucks.
Description
Technical field
The utility model relates to the Automobile air control system of stopping, and refers more particularly to Automobile air gas in the control system gas feeder of stopping of stopping.
Background technology
In the passenger vehicle, generally adopted the electric pneumatic brake system to reach in modern times by electronic inflation pump and air tank with the gas feeder that mainly constitutes supporting with it.Adopted constant pressure type air pressure mode at present, that is: when air tank internal gas pressure >=0.8MPa, the unloader valve of air tank lower end is opened pressure release immediately, makes the air tank internal gas pressure maintain 0.8MPa.The shortcoming of above-mentioned gas feeder is: electronic inflation pump is in running order always, has wasted the energy.In addition, electronic inflation pump continuous running, its service life has been shortened in strain easily, has increased the operation cost of vehicle.
The utility model content
The utility model technical matters to be solved is: the gas that the pressure variation in the automatic perception air tank of a kind of ability is provided and when air pressure reaches threshold values, the closes down inflation pump automatically gas feeder of stopping.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: the gas gas feeder of stopping; Comprise: air tank and inflation pump and drive motor thereof and air pressure control circuit and drive motor control setup; The two ends of air tank are respectively arranged with admission port and air extractor duct; The air extractor duct of inflation pump is connected with the admission port of air tank, is provided with BARO sensor near its air extractor duct place on the air tank, and the mouth of BARO sensor links to each other with the incoming signal end of air pressure control circuit; The gang switch of air pressure control circuit control seals in the output control circuit of drive motor control setup, and the mouth of drive motor control setup links to each other with the corresponding input end of said drive motor respectively.
Described drive motor control setup is a frequency converter, and described drive motor is a three phase alternating current motor, and three ac output ends of frequency converter are corresponding one by one continuous with three mouths of drive motor.
Described air tank is provided with the off-load mouth in its bottom near the admission port place, and the off-load mouth is provided with unloader valve.
Also go here and there in the control loop of said drive motor control setup and be provided with the inflation pump switch.
The beneficial effect of the utility model is: be arranged in the utility model on the air tank near the BARO sensor of the air tank air extractor duct pressure variation in the perception air tank exactly; When air pressure arrives the threshold values of setting; The air pressure control circuit cuts off the control loop of drive motor control setup, makes drive motor and inflation pump quit work.This intermittent duty of drive motor and inflation pump has reduced energy consumption effectively, has prolonged the service life of drive motor and inflation pump.In addition, adopt frequency converter as the drive motor control setup, make that the work of drive motor is more steady, like this, the stop work of gas feeder of whole gas is also more steady.In addition; String is located at the inflation pump switch of the control loop of drive motor control setup; Can when vehicle is not worked, turn-off described gas feeder, thereby prevent generation effectively owing to malfunctioning abnormal condition that cause such as BARO sensor, air pressure control circuits.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, DC control supply, 2, the inflation pump switch, 3, gang switch, 4, frequency converter, 5, drive motor, 6, inflation pump, 7, unloader valve, 8, BARO sensor, 9, air tank, 10, the air pressure control circuit, 11, direct-current input power supplying.
The specific embodiment
Below in conjunction with accompanying drawing, describe the described specific embodiments of the utility model in detail.
As shown in Figure 1; The described gas of the utility model gas feeder of stopping; Comprise: air tank 9, inflation pump 6, drive motor 5 and air pressure control circuit 10 and frequency converter 4; The two ends of air tank 9 are respectively arranged with admission port and the air extractor duct that leads to brake circuits; The air extractor duct of said inflation pump 6 is connected with the admission port of air tank 9, is provided with BARO sensor 8 near its air extractor duct place on the air tank 9, and the mouth of BARO sensor 8 links to each other with the incoming signal end of air pressure control circuit 10; The two ends of the gang switch 3 of air pressure control circuit 10 seal in the output control circuit of frequency converter 4, that is: the motor input end of frequency converter 4 links to each other with DC control supply 1 through the gang switch 3 of air pressure control circuit 10; The dc supply input of frequency converter 4 links to each other with the corresponding output end of direct-current input power supplying 11 respectively, and the mouth of frequency converter 4 links to each other with the corresponding input end of drive motor 5 respectively.In the present embodiment, described drive motor 5 is a three phase alternating current motor, and three ac output ends of frequency converter 4 are corresponding one by one continuous with three mouths of drive motor 5; Also go here and there in the output control circuit of frequency converter 4 and be provided with inflation pump switch 2, can prevent generation effectively owing to malfunctioning abnormal condition that cause such as BARO sensor 8, air pressure control circuits 10; In addition; Described air tank 9 has kept the off-load mouth that is provided with near the admission port place in its bottom and has been arranged on the unloader valve 7 on the off-load mouth; Like this; Even owing to 2 short circuits of inflation pump switch, BARO sensor 8, air pressure control circuit 10 etc. are malfunctioning, make inflation pump 6 continue air feed, the air pressure of air tank 9 still can maintain in the range of pressure of setting.So just guarantee the normal operation that whole gas is stopped gas feeder, guaranteed vehicle safety.
The working process of the utility model is: open DC control supply 1, direct-current input power supplying 11 and inflation pump switch 2, when the air pressure in the air tank 9 was lower than 0.8MPa, gang switch 3 was connected; Make the control output loop of frequency converter 4 connect, frequency converter 4 is in response to DC control supply 1, and ac output end output three phase current electricity is given drive motor 5; Drive motor 5 is started working, and drives inflation pump 6 work, inflates for air tank 9; When the air pressure in the air tank 9 reached 0.8MPa, gang switch 3 broke off, and the control output loop of frequency converter 4 breaks off; Frequency converter 4 outages; Drive motor 5 quits work, and inflation pump 6 stops to inflate to air tank 9, and the internal gas pressure in the air tank 9 is constant; When the pressure in the air tank 9 is lower than 0.8MPa, gang switch 3 closures of air pressure control circuit 10, drive motor 5 starts once more, and inflation pump 6 is resumed work, and inflates for air tank 9, till the air pressure in air tank 9 reaches 0.8MPa once more.
Claims (4)
1. the gas gas feeder of stopping; Comprise: air tank and inflation pump and drive motor thereof; The two ends of air tank are respectively arranged with admission port and air extractor duct; The air extractor duct of inflation pump is connected with the admission port of air tank; It is characterized in that: the described gas gas feeder of stopping also includes air pressure control circuit and drive motor control setup, is provided with BARO sensor near its air extractor duct place on the described air tank, and the mouth of BARO sensor links to each other with the incoming signal end of air pressure control circuit; The gang switch of air pressure control circuit control seals in the output control circuit of drive motor control setup, and the mouth of drive motor control setup links to each other with the corresponding input end of said drive motor respectively.
2. the gas as claimed in claim 1 gas feeder of stopping; It is characterized in that: described drive motor control setup is a frequency converter; Described drive motor is a three phase alternating current motor, and three ac output ends of frequency converter are corresponding one by one continuous with three mouths of drive motor.
3. according to claim 1 or claim 2 the gas gas feeder of stopping, it is characterized in that: described air tank is provided with the off-load mouth in its bottom near the admission port place, and the off-load mouth is provided with unloader valve.
4. according to claim 1 or claim 2 the gas gas feeder of stopping is characterized in that: in the control loop of said drive motor control setup also string be provided with the inflation pump switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274665 CN202593498U (en) | 2012-06-12 | 2012-06-12 | Air brake air-supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274665 CN202593498U (en) | 2012-06-12 | 2012-06-12 | Air brake air-supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202593498U true CN202593498U (en) | 2012-12-12 |
Family
ID=47311072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220274665 Expired - Lifetime CN202593498U (en) | 2012-06-12 | 2012-06-12 | Air brake air-supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202593498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700546A (en) * | 2012-06-12 | 2012-10-03 | 江苏友谊汽车有限公司 | Air supply device for air brake |
| CN103241235A (en) * | 2013-05-28 | 2013-08-14 | 湖南南车时代电动汽车股份有限公司 | Air channel control method and system for air compressor and brake switch of electric vehicle |
-
2012
- 2012-06-12 CN CN 201220274665 patent/CN202593498U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700546A (en) * | 2012-06-12 | 2012-10-03 | 江苏友谊汽车有限公司 | Air supply device for air brake |
| CN103241235A (en) * | 2013-05-28 | 2013-08-14 | 湖南南车时代电动汽车股份有限公司 | Air channel control method and system for air compressor and brake switch of electric vehicle |
| CN103241235B (en) * | 2013-05-28 | 2015-08-05 | 湖南南车时代电动汽车股份有限公司 | The gas path control method of pure electric drive automobile Air compressor and brake switch thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |