CN104527633A - Novel power take-off and hand brake control system - Google Patents
Novel power take-off and hand brake control system Download PDFInfo
- Publication number
- CN104527633A CN104527633A CN201410849429.8A CN201410849429A CN104527633A CN 104527633 A CN104527633 A CN 104527633A CN 201410849429 A CN201410849429 A CN 201410849429A CN 104527633 A CN104527633 A CN 104527633A
- Authority
- CN
- China
- Prior art keywords
- air
- valve
- hand brake
- spring
- push rod
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A novel power take-off and hand brake control system comprises a first air storage tank (1), a second air storage tank (2), a power take-off gear shift air cylinder (5), a hand brake valve (6) and a spring brake air chamber (7), an air inlet of the hand brake valve (6) is normally communicated with the second air storage tank (2), and an air outlet of the hand brake valve (6) is connected with an air inlet of the spring brake air chamber (7) and an air inlet of a pressure switch (8); the first air storage tank (1) is normally communicated with an air inlet of a two-position three-way electromagnetic valve (9), an air outlet of the two-position three-way electromagnetic valve (9) is connected with the power take-off gear shift air cylinder (5), and a coil circuit of the two-position three-way electromagnetic valve (9) is connected with a button switch (10) and the pressure switch (8) in series. Due to the fact that the pressure switch and the two-position three-way electromagnetic valve are adopted for the control system, air pressure is converted into switching electric signal control, a traditional air pressure control transmission process is replaced, the service life of the system is prolonged, and the requirement for residual air pressure of the hand brake valve is lowered.
Description
Technical field
The invention belongs to auto manufacturing's technical field, relate to a kind of Novel force and parking brake control system, be applied to power taking and the parking brake control system of engineering truck especially.
Background technology
Engineering truck (such as fire extinguishing tanker, hoisting crane etc.) also have except there is driving functions extra can operating function, i.e. various functional entity, as the water pump, aerial ladder etc. of fire extinguishing tanker, and the loop wheel machine etc. of hoisting crane.In prior art, engineering truck must ensure that when power taking vehicle is in spring brake chamber braking mode, and namely hand brake valve (parking brake) is in braking during standstill state, otherwise engineering truck exists potential safety hazard in power taking process.
Traditional power taking and parking brake control system are as shown in Figure 1, comprise air tank 1, air tank 22, push buttonvalve 3, gas control shutoff valve 4, power takeoff shifting cylinder 5, hand brake valve 6 and spring brake chamber 7, adopt mechanical method, adopt gas control shutoff valve 4 to ensure just to make when hand brake valve exports without air pressure power taking normally use, otherwise cannot power taking be used.But gas control shutoff valve and hand brake valve are with the use of there is fault in actual use, such as gas control shutoff valve diaphragm lost efficacy and caused gas leakage, and during hand brake valve braking during standstill air extractor duct still remaining about 20kPa air pressure cause gas control shutoff valve to export without air pressure, thus affect the power taking operational failure of engineering truck.
Summary of the invention
The object of the invention is the deficiency overcoming prior art structure problem, a kind of Novel force and parking brake control system are provided, have and adopt pressure switch and two-position three way magnetic valve to replace the function of gas control shutoff valve, improve the service life of system and reduce the residual gas pressure requirement of hand brake valve.
The technical scheme that the technical matters that the present invention solves adopts is:
A kind of Novel force and parking brake control system, comprise air tank 1, air tank 22, power takeoff shifting cylinder 5, hand brake valve 6 and spring brake chamber 7, air tank 22, the admission port normal open air tank 22 of hand brake valve 6, the air extractor duct of hand brake valve 6 connects the admission port of spring brake chamber 7 and pressure switch 8 respectively; The admission port of air tank 1 normal open two-position three way magnetic valve 9, the air extractor duct of two-position three way magnetic valve 9 connects power takeoff shifting cylinder 5, and the coil circuit of two-position three way magnetic valve 9 is connected button switch 10 and pressure switch 8 respectively.
During concrete enforcement, above-mentioned pressure switch 8 comprises valve body 44, diaphragm 45, push rod 46, dry-reed tube 42 and socket 41, valve body 44 is provided with admission port 50, valve body 44 inner chamber communicated with admission port 50 is provided with diaphragm 45, diaphragm 45 is provided with push rod 46, push rod 46 upper end is provided with groove, the groove vicinity of push rod 46 is provided with magnet 48, valve body 44 inner chamber is also provided with spring perch 43, spring 47 is provided with in spring perch 43, spring 47 withstands on push rod 46, the upper end of valve body (44) is connected with socket 41, socket 41 is provided with contact pin 49, dry-reed tube 42 is connected with below contact pin 49, dry-reed tube 42 is through spring perch 43, put in the groove of push rod 46.
Diaphragm is loaded between valve body and spring perch, seals and pressure sensitive; Socket is provided with contact pin and dry-reed tube, push rod is provided with magnet, when admission port has enough large air pressure, the atmospheric pressure acted on diaphragm overcomes the elastic force of spring thus promotion diaphragm drives push rod to move up, make magnet away from dry-reed tube, finally realize dry-reed tube under the influence of a magnetic field and switch to open circuit by conducting (ON), otherwise when air pressure is less than setting value, push rod drives magnet to move downward under the elastic force effect of spring, finally realizes dry-reed tube under the influence of a magnetic field by open circuit) switch to path.
When chaufeur need stop carry out power taking operation time, carry out braking during standstill, hand brake valve implication pressure is discharged from mouth, when the air pressure of air extractor duct is down within setting value, the admission port air pressure of pressure switch is also synchronously down within setting value, push rod drives magnet to move downward under the elastic force effect of spring, and dry-reed tube switches to path by open circuit under the influence of a magnetic field.Now chaufeur presses the button switch again, and two-position three way magnetic valve starts the work of being energized, and its air extractor duct air pressure exports power takeoff shifting cylinder to, thus realizes could performing power taking function when hand brake valve braking during standstill.
When normal driving and temporary term stop, hand brake valve air extractor duct has air pressure to export, the atmospheric pressure acted on diaphragm overcomes the elastic force of spring thus promotion diaphragm drives push rod to move up, make magnet away from dry-reed tube, finally realize dry-reed tube under the influence of a magnetic field and switch to open circuit by path, now chaufeur presses the button switch again and cannot realize two-position three way magnetic valve energising, and guarantee cannot use power taking function.
The invention has the beneficial effects as follows:
(1) present invention employs the control system of pressure switch and two-position three way magnetic valve, air pressure is converted into switched electrical signal to control, instead of traditional air pressure controls transfer process, improve the service life of system and reduce the residual gas pressure requirement of hand brake valve.
(2) pressure switch of the present invention, its switch longevity is long, and dependable performance meets frequent operating needs.Dry-reed tube and magnet structure is adopted greatly to improve the life-span of switch motion.
Detailed description of the invention
In Fig. 2 and Fig. 3, a kind of Novel force and parking brake control system, comprise air tank 1, air tank 22, power takeoff shifting cylinder 5, hand brake valve 6 and spring brake chamber 7, air tank 22, the admission port normal open air tank 22 of hand brake valve 6, the air extractor duct of hand brake valve 6 connects the admission port 50 of spring brake chamber 7 and pressure switch 8 respectively; The admission port of air tank 1 normal open two-position three way magnetic valve 9, the air extractor duct of two-position three way magnetic valve 9 connects power takeoff shifting cylinder 5, and the coil circuit of two-position three way magnetic valve 9 is connected button switch 10 and pressure switch 8 respectively.In Fig. 3, pressure switch 8 comprises valve body 44, diaphragm 45, push rod 46, dry-reed tube 42 and socket 41, valve body 44 is provided with admission port 50, valve body 44 inner chamber communicated with admission port 50 is provided with diaphragm 45, diaphragm 45 is provided with push rod 46, push rod 46 upper end is provided with groove, the groove vicinity of push rod 46 is provided with magnet 48, valve body 44 inner chamber is also provided with spring perch 43, spring 47 is provided with in spring perch 43, spring 47 withstands on push rod 46, the upper end of valve body 44 is connected with socket 41, socket 41 is provided with contact pin 49, dry-reed tube 42 is connected with below contact pin 49, dry-reed tube 42 is through spring perch 43, put in the groove of push rod 46.The present invention adopts high life pressure switch, and switch life reaches more than 1,000,000 times, dependable performance, meets frequent operating needs.The natural flax cloth sandwich of one deck can be provided with in diaphragm, promote the life-span of diaphragm deformation, and adopt dry-reed tube and magnet structure greatly to improve the life-span of switch motion.
In Fig. 3, diaphragm 45 is loaded between valve body 44 and spring perch 43, seals and pressure sensitive, socket 41 is provided with contact pin 49 and dry-reed tube 42, push rod 46 is provided with magnet 48, when admission port 50 has enough large air pressure, the atmospheric pressure acted on diaphragm 45 overcomes the elastic force of spring 47 thus promotion diaphragm 45 drives push rod 46 to move up, make magnet 45 away from dry-reed tube 42, finally realize dry-reed tube 42 under the influence of a magnetic field and switch to open circuit (OFF) by conducting (ON), otherwise when air pressure is less than 30kPa, push rod 46 drives magnet 45 to move downward under the elastic force effect of spring 47, finally realize dry-reed tube 42 under the influence of a magnetic field and switch to path (ON) by open circuit (OFF).
When chaufeur need stop carry out power taking operation time, carry out braking during standstill, hand brake valve 6 implication pressure is discharged from exhausr port, when the air pressure of air extractor duct is down within 30kPa, admission port 50 air pressure of pressure switch 14 is also synchronously down within 30kPa, push rod 46 drives magnet 45 to move downward under the elastic force effect of spring 47, and dry-reed tube 42 switches to path ON by open circuit OFF under the influence of a magnetic field.Now chaufeur presses the button switch 10 again, and two-position three way magnetic valve 9 starts the work of being energized, and its air extractor duct air pressure exports power takeoff shifting cylinder 18 to, thus realizes could performing power taking function when hand brake valve braking during standstill.
When normal driving and temporary term stop, hand brake valve air extractor duct has air pressure to export, the atmospheric pressure acted on diaphragm 45 overcomes the elastic force of spring 47 thus promotion diaphragm 45 drives push rod 46 to move up, make magnet 45 away from dry-reed tube 42, finally realize dry-reed tube (42) under the influence of a magnetic field and switch to open circuit OFF by path ON, now chaufeur presses the button switch 10 again and cannot realize two-position three way magnetic valve 9 and be energized, and guarantee cannot use power taking function.
The present invention is applicable to engineering truck, such as fire extinguishing tanker, hoisting crane etc.
Finally, it should be pointed out that above embodiment is only the more representational example of the present invention.Obviously, the invention is not restricted to above-described embodiment, many distortion can also be had.Every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all should think and belong to protection scope of the present invention.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further illustrated.
Fig. 1 is the structural representation of prior art; Fig. 2 is the structural representation of the embodiment of the present invention; Fig. 3 is the structural representation of the invention process pressure switch.
In figure: 1, air tank 1, air tank 23, push buttonvalve 4, gas control shutoff valve 5, power takeoff shifting cylinder 6, hand brake valve 7, spring brake chamber 8, pressure switch 9, two-position three way magnetic valve 10, button switch 41, socket 42, dry-reed tube 43, spring perch 44, valve body 45, diaphragm 46, push rod 47, spring 48, magnet 49, contact pin 50, admission port.
Claims (2)
1. a Novel force and parking brake control system, comprise air tank one (1), air tank two (2), power takeoff shifting cylinder (5), hand brake valve (6) and spring brake chamber (7), air tank two (2), the admission port normal open air tank two (2) of hand brake valve (6), is characterized in that the air extractor duct of hand brake valve (6) connects the admission port of spring brake chamber (7) and pressure switch (8) respectively; Air tank one (1) normal open two-position three way magnetic valve (9) admission port, the air extractor duct of two-position three way magnetic valve (9) connects power takeoff shifting cylinder (5), and two-position three way magnetic valve (connect respectively button switch (10) and pressure switch (8) by the coil circuit of 9.
2. a kind of Novel force according to claim 1 and parking brake control system, it is characterized in that above-mentioned pressure switch (8) comprises valve body (44), diaphragm (45), push rod (46), dry-reed tube (42) and socket (41), valve body (44) is provided with admission port (50), valve body (44) inner chamber communicated with admission port (50) is provided with diaphragm (45), diaphragm (45) is provided with push rod (46), push rod (46) upper end is provided with groove, the groove vicinity of push rod (46) is provided with magnet (48), valve body (44) inner chamber is also provided with spring perch (43), spring (47) is provided with in spring perch (43), spring (47) withstands on push rod (46), the upper end of valve body (44) is connected with socket (41), socket (41) is provided with contact pin (49), dry-reed tube (42) is connected with below contact pin (49), dry-reed tube (42) is through spring perch (43), put in the groove of push rod (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849429.8A CN104527633A (en) | 2014-12-30 | 2014-12-30 | Novel power take-off and hand brake control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849429.8A CN104527633A (en) | 2014-12-30 | 2014-12-30 | Novel power take-off and hand brake control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104527633A true CN104527633A (en) | 2015-04-22 |
Family
ID=52843349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410849429.8A Pending CN104527633A (en) | 2014-12-30 | 2014-12-30 | Novel power take-off and hand brake control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527633A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099150A (en) * | 2017-05-09 | 2018-12-28 | 董润 | The exhaust brake automatic gear shifting system of vehicle braking frequency can be reduced |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084072A (en) * | 1975-05-20 | 1978-04-11 | Aisin Seiki Kabushiki Kaisha | Pressure differential switch device |
| US4266517A (en) * | 1976-11-24 | 1981-05-12 | Naoji Sakakibara | Differential pressure switch device responsive to differential pressure and temperature change |
| CN200995681Y (en) * | 2006-12-06 | 2007-12-26 | 包头北方奔驰重型汽车有限责任公司 | Running and power-takeoff interlocking unit of vehicle |
| CN201777137U (en) * | 2010-09-19 | 2011-03-30 | 中国重汽集团济南动力有限公司 | Power takeoff protection device during parking |
| CN201890147U (en) * | 2010-09-26 | 2011-07-06 | 北汽福田汽车股份有限公司 | Control system for power takeoff |
| CN104175936A (en) * | 2014-08-22 | 2014-12-03 | 中国重汽集团成都王牌商用车有限公司 | Control system preventing cargo box from automatic lifting during dumper running |
| CN204605780U (en) * | 2014-12-30 | 2015-09-02 | 浙江科力车辆控制系统有限公司 | A kind of Novel force and parking brake control system |
-
2014
- 2014-12-30 CN CN201410849429.8A patent/CN104527633A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084072A (en) * | 1975-05-20 | 1978-04-11 | Aisin Seiki Kabushiki Kaisha | Pressure differential switch device |
| US4266517A (en) * | 1976-11-24 | 1981-05-12 | Naoji Sakakibara | Differential pressure switch device responsive to differential pressure and temperature change |
| CN200995681Y (en) * | 2006-12-06 | 2007-12-26 | 包头北方奔驰重型汽车有限责任公司 | Running and power-takeoff interlocking unit of vehicle |
| CN201777137U (en) * | 2010-09-19 | 2011-03-30 | 中国重汽集团济南动力有限公司 | Power takeoff protection device during parking |
| CN201890147U (en) * | 2010-09-26 | 2011-07-06 | 北汽福田汽车股份有限公司 | Control system for power takeoff |
| CN104175936A (en) * | 2014-08-22 | 2014-12-03 | 中国重汽集团成都王牌商用车有限公司 | Control system preventing cargo box from automatic lifting during dumper running |
| CN204605780U (en) * | 2014-12-30 | 2015-09-02 | 浙江科力车辆控制系统有限公司 | A kind of Novel force and parking brake control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099150A (en) * | 2017-05-09 | 2018-12-28 | 董润 | The exhaust brake automatic gear shifting system of vehicle braking frequency can be reduced |
| CN109099150B (en) * | 2017-05-09 | 2020-10-27 | 磐安腾阳汽车制动科技有限公司 | Exhaust brake automatic shift system for vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201970990U (en) | Master brake valve with electric-control and gas-control double-loop signals | |
| CN104061193B (en) | The drum brake hydraulic system of multi-axle heavy type engineering machinery | |
| CN101879845A (en) | Air pump control air circuit for central tire inflation/deflation system | |
| CN104136294A (en) | Brake assembly of a vehicle | |
| CN204605780U (en) | A kind of Novel force and parking brake control system | |
| CN105329229A (en) | Car and braking system of car | |
| CN204110062U (en) | A kind of locomotive brake gear is from moving end transfer device | |
| CN102633200B (en) | Pneumatic control module | |
| CN204095795U (en) | Pneumatic braking device and there is the vehicle of this Pneumatic braking device | |
| CN108331791A (en) | A kind of hydraulic system released without decompression valve type fork-lift truck stopping brake | |
| CN104527633A (en) | Novel power take-off and hand brake control system | |
| CN201753040U (en) | Packing case lifting safety control device | |
| CN104355236B (en) | Compound lorry-mounted crane remote control system | |
| CN209208745U (en) | A kind of commercial vehicle controlled pneumatic braking valve for vehicle | |
| CN103935348A (en) | Automatic restoration brake structure under hydraulic control and mining dump vehicle | |
| CN202901111U (en) | Electronic control pneumatic clutch control device for vehicle | |
| CN102114853A (en) | Antiskid blow down valve for braking system of high-speed train | |
| CN208439246U (en) | A kind of air-pressure type electronic parking braking control valve | |
| CN106394599A (en) | Vehicle and unpowered return conversion system thereof | |
| CN203739872U (en) | Integrated braking system of fork truck | |
| CN202608756U (en) | Hydraulic brake control system of mine dump truck | |
| CN206695989U (en) | Differential lock detection means | |
| CN104442752A (en) | Braking power cut-off control system of walking machine | |
| CN108639033A (en) | A kind of loading machine hand braking system and method with trailer | |
| CN205202737U (en) | Automobile is driven a vehicle and is got power interlock system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |