CN201890147U - Control system for power takeoff - Google Patents
Control system for power takeoff Download PDFInfo
- Publication number
- CN201890147U CN201890147U CN2010205432812U CN201020543281U CN201890147U CN 201890147 U CN201890147 U CN 201890147U CN 2010205432812 U CN2010205432812 U CN 2010205432812U CN 201020543281 U CN201020543281 U CN 201020543281U CN 201890147 U CN201890147 U CN 201890147U
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- control
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- power takeoff
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Abstract
The utility model provides a control system for a power takeoff, which comprises a parking control gas circuit, a power takeoff control gas circuit and a pneumatic control stop valve (8). A control port (84) of the pneumatic control stop valve is connected with a gas outlet (22) of a relay valve (2) of the parking control gas circuit; a gas inlet (81) of the pneumatic control stop valve is connected with a gas source (6) by the aid of a reversing valve (5); and a gas outlet (82) of the pneumatic control stop valve is connected with a working cylinder (7) of the power takeoff. By the aid of the technical scheme, the control system is capable of reliably judging that a vehicle is in a running state or a parking state only with a simple structure, and enables the power takeoff to act only in the parking state. The control system is not only simple and reliable in structure, but also strong in universality, and any power takeoff system can be controlled by the control system.
Description
Technical field
The utility model relates to a kind of control system that is used for power takeoff, particularly, relates to and a kind ofly can make power takeoff locking under driving states, the control system of power taking under the Parking state.
Background technology
The function of a lot of special-use vehicles relies on mobile unit to realize, and the work of these mobile units be unable to do without the input of power.At present, in the power input method of mobile unit the most easily method just be to use power takeoff, obtain the power of automotive engine by power takeoff.
Power takeoff is exactly one group of variable gear, claims power take off again, generally is to be formed by combining by gear case, power-transfer clutch.The kind of common automobile power takeoff has engine torque extraction device, change-speed box power takeoff and auxiliary gear box power takeoff etc., its principle all be by with the gear of power takeoff respectively with in-engine, change-speed box in or auxiliary gear box in the gear of high-speed operation be meshed, thereby obtain power.And being switched on or switched off of this power is that a master cock by in the operator's compartment is controlled.
Because the function of modern vehicle is more and more, the button that distributes in the operator's compartment, knob are also more and more, and the density of arranging is increasing, and chaufeur is careless slightly will to cause maloperation.If chaufeur in the vehicle ' process maloperation takes place and connects power takeoff, thereby power input mobile unit causes the equipment entry into service, and the consequence that causes may be catastrophic.
The utility model content
The purpose of this utility model provides a kind of control system that is used for power takeoff, this control system judges that by the air pressure in the Parking control gas circuit it still is the Parking state that vehicle is in motoring condition, and only can control the power takeoff action when vehicle is in the Parking state.
To achieve these goals, the utility model provides a kind of control system that is used for power takeoff, this control system comprises Parking control gas circuit and power takeoff control gas circuit, wherein, the control system of described power takeoff also comprises gas control shutoff valve, the gas control shutoff valve control mouth of this gas control shutoff valve links to each other with the relay valve air extractor duct of the relay valve of described Parking control gas circuit, the gas control shutoff valve admission port of described gas control shutoff valve links to each other with source of the gas, and the gas control shutoff valve air extractor duct of described gas control shutoff valve links to each other with the power takeoff working cylinder.
Preferably, described gas control shutoff valve links to each other with described source of the gas by change-over valve, and wherein, described gas control shutoff valve admission port links to each other with the change-over valve air extractor duct of described change-over valve, and the change-over valve admission port of described change-over valve links to each other with described source of the gas.
Preferably, described gas control shutoff valve links to each other with described power takeoff working cylinder by change-over valve, wherein, described gas control shutoff valve air extractor duct links to each other with the change-over valve admission port of described change-over valve, and the change-over valve air extractor duct of described change-over valve links to each other with described power takeoff working cylinder.
By technique scheme, just can judge reliably that by simple structure vehicle is in motoring condition or Parking state, and power takeoff only could be moved under the Parking state.This control system is not only simple and reliable for structure, and highly versatile, and no matter which kind of power takeoff system can control by control system of the present utility model.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification sheets, is used from explanation the utility model with the following specific embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is a Parking control gas circuit scheme drawing;
Fig. 2 is a power takeoff control gas circuit scheme drawing;
Fig. 3 is the scheme drawing of a kind of embodiment of the control system that is used for power takeoff of the present utility model;
Fig. 4 is the scheme drawing of the another kind of embodiment of the control system that is used for power takeoff of the present utility model.
Description of reference numerals
1 hand control valve (HCV), 11 hand control valve (HCV) admission ports
12 hand control valve (HCV) air extractor ducts, 13 hand control valve (HCV) exhausr ports
2 relay valves, 21 relay valve admission ports
22 relay valve air extractor ducts, 23 relay valve exhausr ports
24 relay valves control mouthful 3 check valves
4 braking during standstill air chambers 5,5 ' change-over valve
51,51 ' change-over valve admission port 52,52 ' change-over valve air extractor duct
53,53 ' change-over valve exhausr port, 6 sources of the gas
7 power takeoff working cylinders, 8 gas control shutoff valves
81 gas control shutoff valve admission ports, 82 gas control shutoff valve air extractor ducts
83 gas control shutoff valve exhausr ports, 84 gas control shutoff valves control mouth
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
Fig. 1 is a Parking control gas circuit scheme drawing.Fig. 2 is a power takeoff control gas circuit scheme drawing.Fig. 3 is the scheme drawing of a kind of embodiment of the control system that is used for power takeoff of the present utility model.Fig. 4 is the scheme drawing of the another kind of embodiment of the control system that is used for power takeoff of the present utility model.
Because having the emergency brake system of the special-use vehicle of mobile unit all is the brake mode of dying usually, that is to say, in compressed air brake cylinder, charge into pressure gas when removing braking during standstill, thereby the spring brake off power in the compression braking during standstill air chamber, stop in compressed air brake cylinder, to charge into pressure gas when implementing braking during standstill, and with the discharge of the pressure gas in the compressed air brake cylinder, thereby make the spring reset in the braking during standstill air chamber produce braking force.
The structure of described as can be seen from Figure 1 Parking control gas circuit, this Parking control gas circuit comprises source of the gas 6, hand control valve (HCV) 1, relay valve 2 and braking during standstill air chamber 4, wherein, source of the gas 6 links to each other with the hand control valve (HCV) admission port 11 of hand control valve (HCV) 1, preferably, source of the gas 6 links to each other with hand control valve (HCV) admission port 11 by check valve 3, the effect of adding this check valve 3 is to be convenient to control source of the gas 6, prevent when source of the gas air pressure is lower than system, the gas backstreaming of system, influence braking effect, can also before pressure gas arrives hand control valve (HCV) 1, turn-off source of the gas 6, thereby be convenient to the maintenance of hand control valve (HCV) 1 and replacing etc.; The hand control valve (HCV) air extractor duct 12 of hand control valve (HCV) 1 links to each other with the relay valve of relay valve 2 control mouth 24; The relay valve admission port 21 of relay valve 2 directly links to each other with source of the gas 6 or links to each other with source of the gas 6 by check valve 3; The relay valve air extractor duct 22 of relay valve 2 links to each other with braking during standstill air chamber 4.
When removing braking during standstill, hand control valve (HCV) 1 is opened, pressurized air arrives relay valve control mouth 24 through hand control valve (HCV) admission port 11 and hand control valve (HCV) air extractor duct 12, because relay valve control mouth 24 has air pressure, so relay valve admission port 21 communicates with relay valve air extractor duct 22, thereby make the pressure gas in the source of the gas 6 arrive braking during standstill air chamber 4, compress braking during standstill air chamber 4 interior springs (not shown) thereby releasing braking during standstill power through relay valve admission port 21 and relay valve air extractor duct 22.
When implementing braking during standstill, hand control valve (HCV) 1 cuts out, hand control valve (HCV) admission port 11 communicates with hand control valve (HCV) exhausr port 13, hand control valve (HCV) air extractor duct 12 does not have pressure gas output, so relay valve control mouth 24 does not have air pressure, therefore relay valve admission port 21 communicates with relay valve exhausr port 23, relay valve air extractor duct 22 does not have pressure gas output, so the pressure gas in the braking during standstill air chamber 4 is discharged in the atmosphere by relay valve air extractor duct 22, relay valve exhausr port 23, spring reset in the braking during standstill air chamber 4, thus braking during standstill power produced.
Fig. 2 is the scheme drawing of power takeoff control gas circuit.Comparison diagram 1 and Fig. 2 are as can be known.Parking control gas circuit and power takeoff control gas circuit are separate.In Fig. 2, source of the gas 6 links to each other with the change-over valve admission port 51 of change-over valve 5, and change-over valve air extractor duct 52 links to each other with power takeoff working cylinder 7.Whether therefore, can control power takeoff by change-over valve 5 works.
When starting power takeoff, control change-over valve 5 makes change-over valve admission port 51 communicate with change-over valve air extractor duct 52, and the pressure gas in the source of the gas 6 charges into power takeoff working cylinder 7, and power takeoff is started working.
When closing power takeoff, control change-over valve 5 makes change-over valve air extractor duct 52 communicate with change-over valve exhausr port 53, and the pressure gas in the power takeoff working cylinder 7 is discharged into atmosphere by change-over valve air extractor duct 52 and change-over valve exhausr port 53, thereby power takeoff is quit work.
Figure 3 shows that the scheme drawing of a kind of embodiment of the control system that is used for power takeoff of the present utility model.The structure that is used for a kind of embodiment of control system of power takeoff of the present utility model as seen from the figure.A kind of control system that is used for power takeoff provided by the utility model comprises Parking control gas circuit and power takeoff control gas circuit, wherein, the control system of described power takeoff also comprises gas control shutoff valve 8, the gas control shutoff valve control mouth 84 of this gas control shutoff valve 8 links to each other with the relay valve air extractor duct 22 of the relay valve 2 of described Parking control gas circuit, the gas control shutoff valve admission port 81 of described gas control shutoff valve 8 links to each other with source of the gas 6, and the gas control shutoff valve air extractor duct 82 of described gas control shutoff valve 8 links to each other with power takeoff working cylinder 7.
Therefore, when vehicle is in motoring condition, relay valve air extractor duct 22 has pressure gas output, therefore gas control shutoff valve control mouth 84 has air pressure, gas control shutoff valve admission port 81 ends at this moment, gas control shutoff valve air extractor duct 82 communicates with gas control shutoff valve exhausr port 83, so the pressure gas in the power takeoff working cylinder 7 is discharged into atmosphere by gas control shutoff valve air extractor duct 82 and gas control shutoff valve exhausr port 83, thereby power takeoff is quit work; When vehicle is in the Parking state, the 22 no pressure gas outputs of relay valve air extractor duct, therefore gas control shutoff valve is controlled mouthful 84 no air pressure, this moment, gas control shutoff valve admission port 81 communicated with gas control shutoff valve air extractor duct 82, cut off with gas control shutoff valve exhausr port 83, therefore charge into pressure gas in the power takeoff working cylinder 7, thus the work of control power takeoff.
By simple connection structure gas circuit being controlled in Parking with upper type is connected with power takeoff control gas circuit, the control signal that utilizes the air pressure of braking during standstill whether to work as power takeoff, simply and reliably power takeoff is controlled, power takeoff only could be moved under the Parking state
Preferably, described gas control shutoff valve 8 links to each other with described source of the gas 6 by change-over valve 5, and wherein, described gas control shutoff valve admission port 81 links to each other with the change-over valve air extractor duct 52 of described change-over valve 5, and the change-over valve admission port 51 of described change-over valve 5 links to each other with described source of the gas 6.
Perhaps, preferably, as shown in Figure 4 of the present utility model is used for the scheme drawing of another kind of embodiment of the control system of power takeoff, described gas control shutoff valve 8 links to each other with described power takeoff working cylinder 7 by change-over valve 5 ', wherein, described gas control shutoff valve air extractor duct 82 links to each other with the change-over valve admission port 51 ' of described change-over valve 5 ', and the change-over valve air extractor duct 52 ' of described change-over valve 5 ' links to each other with described power takeoff working cylinder 7.
The difference of above-mentioned two kinds of preferred implementations is that change-over valve 5 is different with the position of gas control shutoff valve 8 in power takeoff control gas circuit, in general, this is to the not influence of control effect, but consider the actual arrangement situation of gas circuit in the vehicle, can select the arrangement form of two kinds of embodiments according to actual conditions, perhaps above-mentioned two kinds of embodiments simply are out of shape, for example add some valve or other devices commonly used, this all belongs within the scope of the present utility model or can obtain enlightenment by the utility model.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up by any suitable manner, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (3)
1. control system that is used for power takeoff, this control system comprises Parking control gas circuit and power takeoff control gas circuit, it is characterized in that, the control system of described power takeoff also comprises gas control shutoff valve (8), the gas control shutoff valve control mouthful (84) of this gas control shutoff valve (8) links to each other with the relay valve air extractor duct (22) of the relay valve (2) of described Parking control gas circuit, the gas control shutoff valve admission port (81) of described gas control shutoff valve (8) links to each other with source of the gas (6), and the gas control shutoff valve air extractor duct (82) of described gas control shutoff valve (8) links to each other with power takeoff working cylinder (7).
2. control system according to claim 1, it is characterized in that, described gas control shutoff valve (8) links to each other with described source of the gas (6) by change-over valve (5), wherein, described gas control shutoff valve admission port (81) links to each other with the change-over valve air extractor duct (52) of described change-over valve (5), and the change-over valve admission port (51) of described change-over valve (5) links to each other with described source of the gas (6).
3. control system according to claim 1, it is characterized in that, described gas control shutoff valve (8) links to each other with described power takeoff working cylinder (7) by change-over valve (5 '), wherein, described gas control shutoff valve air extractor duct (82) links to each other with the change-over valve admission port (51 ') of described change-over valve (5 '), and the change-over valve air extractor duct (52 ') of described change-over valve (5 ') links to each other with described power takeoff working cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205432812U CN201890147U (en) | 2010-09-26 | 2010-09-26 | Control system for power takeoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205432812U CN201890147U (en) | 2010-09-26 | 2010-09-26 | Control system for power takeoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890147U true CN201890147U (en) | 2011-07-06 |
Family
ID=44219624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205432812U Expired - Fee Related CN201890147U (en) | 2010-09-26 | 2010-09-26 | Control system for power takeoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201890147U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755706A (en) * | 2012-07-27 | 2012-10-31 | 温州市公安消防支队 | One-key control system for power takeoff device |
| CN103303140A (en) * | 2013-06-06 | 2013-09-18 | 东风汽车公司 | Double-H operated power takeoff electrical control system capable of carrying out traveling power take-off and use method of electrical control system |
| CN103303226A (en) * | 2013-06-06 | 2013-09-18 | 东风汽车公司 | Single-H operated power takeoff control system capable of canceling traveling power take-off and use method of single-H operated power takeoff control system |
| CN103318066A (en) * | 2013-06-06 | 2013-09-25 | 东风汽车公司 | Double-H controlled power takeoff control system capable of canceling driving power taking-off and utilization method for same |
| CN104527633A (en) * | 2014-12-30 | 2015-04-22 | 浙江科力车辆控制***有限公司 | Novel power take-off and hand brake control system |
| CN105946568A (en) * | 2016-06-08 | 2016-09-21 | 徐州重型机械有限公司 | Power takeoff control system and engineering vehicle |
| WO2017210891A1 (en) * | 2016-06-08 | 2017-12-14 | 徐州重型机械有限公司 | Power take-off control system and construction vehicle |
| CN113320381A (en) * | 2020-02-28 | 2021-08-31 | 北汽福田汽车股份有限公司 | Power take-off device and control method of power take-off device |
-
2010
- 2010-09-26 CN CN2010205432812U patent/CN201890147U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755706A (en) * | 2012-07-27 | 2012-10-31 | 温州市公安消防支队 | One-key control system for power takeoff device |
| CN102755706B (en) * | 2012-07-27 | 2014-10-29 | 温州市公安消防支队 | One-key control system for power takeoff device |
| CN103303140A (en) * | 2013-06-06 | 2013-09-18 | 东风汽车公司 | Double-H operated power takeoff electrical control system capable of carrying out traveling power take-off and use method of electrical control system |
| CN103303226A (en) * | 2013-06-06 | 2013-09-18 | 东风汽车公司 | Single-H operated power takeoff control system capable of canceling traveling power take-off and use method of single-H operated power takeoff control system |
| CN103318066A (en) * | 2013-06-06 | 2013-09-25 | 东风汽车公司 | Double-H controlled power takeoff control system capable of canceling driving power taking-off and utilization method for same |
| CN103303140B (en) * | 2013-06-06 | 2015-06-24 | 东风汽车公司 | Double-H operated power takeoff electrical control system capable of carrying out traveling power take-off and use method of electrical control system |
| CN103318066B (en) * | 2013-06-06 | 2015-09-09 | 东风汽车公司 | The power takeoff device control system that the two H cancelling driving power taking handle and using method thereof |
| CN103303226B (en) * | 2013-06-06 | 2015-09-23 | 东风汽车公司 | The power takeoff device control system that the single H cancelling driving power taking handles and using method thereof |
| CN104527633A (en) * | 2014-12-30 | 2015-04-22 | 浙江科力车辆控制***有限公司 | Novel power take-off and hand brake control system |
| CN105946568A (en) * | 2016-06-08 | 2016-09-21 | 徐州重型机械有限公司 | Power takeoff control system and engineering vehicle |
| WO2017210891A1 (en) * | 2016-06-08 | 2017-12-14 | 徐州重型机械有限公司 | Power take-off control system and construction vehicle |
| CN113320381A (en) * | 2020-02-28 | 2021-08-31 | 北汽福田汽车股份有限公司 | Power take-off device and control method of power take-off device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20170926 |