CN103318066A - Double-H controlled power takeoff control system capable of canceling driving power taking-off and utilization method for same - Google Patents
Double-H controlled power takeoff control system capable of canceling driving power taking-off and utilization method for same Download PDFInfo
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- CN103318066A CN103318066A CN2013102218726A CN201310221872A CN103318066A CN 103318066 A CN103318066 A CN 103318066A CN 2013102218726 A CN2013102218726 A CN 2013102218726A CN 201310221872 A CN201310221872 A CN 201310221872A CN 103318066 A CN103318066 A CN 103318066A
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Abstract
A double-H controlled power takeoff control system capable of canceling driving power taking-off comprises an air storage cylinder which passes through a power taking-off solenoid valve and a high-gear shielding valve successively to be communicated with an air inlet of a power takeoff and an air inlet of a central air cylinder. An air outlet of the power takeoff is communicated with a rod cavity of a power takeoff control air cylinder, an air outlet of the central air cylinder is connected with a double-H valve in a double-H control system of a rear auxiliary box through a gas passage, and a power taking-off switch is connected in series on a coil of a power taking-off solenoid valve. During usage, air is fed into the power takeoff and the central air cylinder simultaneously to synchronize power taking-off and parking, so that the de-synchronous power taking-off and parking at high gears and long-time ventilation caused by the failure of the power taking-off valve can be prevented by the power taking-off solenoid valve, and sudden elevation during traveling is avoided eventually. By means of the control system and a utilization method thereof, power taking-off and parking can be synchronized, sudden elevation during traveling of a vehicle can be avoided, and the safety is high.
Description
Technical field
The present invention relates to a kind of power takeoff control system of dumping car, relate in particular to power takeoff control system and using method thereof that a kind of two H that cancel the driving power taking handle, specifically be applicable to power taking, the synchronous method of stopping and avoid unexpected lifting phenomenon, strengthen the safety of power taking.
Background technology
At present, domestic normal generation dumping car is lifting automatically suddenly in motion, so that the phenomenon of clobber, and this kind phenomenon tends to cause serious traffic accident, causes enormous economic loss, even car crash.Though numerous main engine plants all propose different preventive with refitting factory, as: power takeoff and lugs are carried out chain control, expectation power taking, the realization simultaneously of stopping, thereby unexpected lifting phenomenon appears when avoiding driving a vehicle, but in actual applications, usually because power taking, stop between chain control inharmonious, the situation of cause car not stop, power takeoff having been worked, the unexpected lifting phenomenon that occurs when not solving driving.
The Chinese patent Granted publication number is CN2837570Y, Granted publication day is the gas control device that the utility model patent on November 15th, 2006 discloses a kind of discharging vehicle hydraulic tipping gear, this gas control device comprises: air tank, maneuvering valve, hydraulic actuating cylinder, change-over valve, fuel tank, power takeoff cylinder and the gear type pump that has check valve, this maneuvering valve is a three position four-way directional control valve, has gas port A, gas port B, gas port P and gas port T, this gas port P is communicated with this air tank, this gas port T is in communication with the outside, this gas port A is communicated with this change-over valve, this gas port B is communicated with this power takeoff cylinder, and, this power takeoff cylinder, this gear type pump, this change-over valve, this hydraulic actuating cylinder and this fuel tank connect by oil circuit, wherein, between the gas port P of this air tank and this maneuvering valve, also be provided with a safe manoeuvring valve.Though this utility model has improved the safety of its use by the mode that a safe manoeuvring valve is set between air tank, maneuvering valve, it still has following defective:
This utility model is summarized as maloperation when travelling with the reason of unexpected lifting phenomenon, thereby it arranges a safe manoeuvring valve between air tank, maneuvering valve, the maloperation power taking of also can not driving a vehicle appears when guaranteeing to travel, thereby avoiding unexpected lifting phenomenon, is similar double insurance effect but it plays, not with power taking with stop not chain, can't realize power taking, stop synchronously, in case run into the factor beyond the maloperation, just can not effectively solve unexpected lifting problem, safety is lower.
Summary of the invention
The objective of the invention is to overcome can't realizing power taking, stopping synchronously of existing in the prior art, the defective that safety is lower and problem, provide a kind of and can realize power taking, stop synchronously, power takeoff control system and using method thereof that two H of the cancellation driving power taking that safety is higher handle.
For realizing above purpose, technical solution of the present invention is: the power takeoff control system that two H of cancellation driving power taking handle, comprise air tank and power takeoff, described air tank communicates with the admission port of power takeoff behind the power taking electromagnetic valve, the output shaft of power takeoff is connected with gear type pump, and is in series with the power taking switch at the coil of power taking electromagnetic valve;
Described air tank all communicates with power takeoff admission port, meta cylinder air inlet behind power taking electromagnetic valve, high-grade shielding valve successively, the air extractor duct of power takeoff communicates with the rod chamber of power takeoff control cylinder, and the air extractor duct of meta cylinder is connected with double H valve gas circuit in the two H control system of back odd-side.
The described back two H control system of odd-side comprise double H valve and reducing valve, and the air extractor duct of described meta cylinder comprises high-grade air extractor duct and low-grade air extractor duct;
Described high-grade air extractor duct communicates with the double H valve admission port, and low-grade air extractor duct communicates with the double H valve relief port, and the double H valve air extractor duct communicates with air tank behind reducing valve, and the coil of high-grade shielding valve all communicates with low-grade air extractor duct, double H valve relief port.
The using method of the power takeoff control system that a kind of two H of above-mentioned cancellation driving power taking handle, described using method may further comprise the steps:
Press the power taking switch earlier, power taking electromagnetic valve coil place circuit is switched on, the coil of power taking electromagnetic valve gets, the power taking electromagnetic valve is opened, at this moment, pressurized air in the air tank enters power takeoff admission port and meta cylinder air inlet respectively successively behind power taking electromagnetic valve, high-grade shielding valve, wherein, enter pressurized air in the meta cylinder enter again double H valve in the two H control system of back odd-side with the open slew device after the connection between mouth, the transmission shaft in the odd-side, transmission shaft stops operating, and vehicle is slack; Simultaneously, enter in the rod chamber that pressurized air in the power takeoff enters the power takeoff control cylinder again with the power gear in the odd-side behind the power take-off gear that promotes power takeoff and the change-speed box and be meshed, power takeoff is capable, the output shaft driven gear pump of capable power takeoff turn round to drive hydraulic efficiency pressure system carry out the lifting of vehicle, descend with in stop operation, thereby realization parking power taking.
Described high-grade shielding valve is controlled folding by the gas in the low-grade air extractor duct.
Described double H valve is by horizontal gear-shift lever control folding.
Compared with prior art, beneficial effect of the present invention is:
1, the present invention cancels the power takeoff control system of two H manipulations of driving power taking and the air tank in the using method thereof successively through the power taking electromagnetic valve, behind the high-grade shielding valve with the power takeoff admission port, the meta cylinder air inlet all communicates, during use, in case the conducting power takeoff carries out power taking, then the meta of conducting simultaneously cylinder is to open the double H valve in the two H control system of back odd-side, thereby mouth in the odd-side behind the open slew device, connection between the transmission shaft, make vehicle slack, realize power taking, stop synchronously, the unexpected lifting phenomenon that has occurred when having avoided the driving power taking from the source, make power taking to carry out when stopping, safety has obtained large increase.Therefore, the present invention not only can realize power taking, stop synchronously, and safety is higher.
2, the present invention cancels in power takeoff control system that the two H of driving power taking handle and the using method thereof set up a high-grade valve that shields between power taking electromagnetic valve, power takeoff, its effect is as follows: at first, high-grade shielding valve can mask top grade, thereby the odd-side cylinder is because high-grade the district when ventilating the power taking that causes can not place neutral position with the back odd-side after avoiding change-speed box, power output can not be interrupted, power taking, the asynchronous caused unexpected lifting phenomenon of stopping; Secondly, high-grade shielding valve can be avoided direct connection the between power takeoff and power taking electromagnetic valve, the air tank, the unexpected lifting phenomenon that causes when occurring growing the ventilation situation in case the power taking electromagnetic valve hinders for some reason.Therefore, the present invention can effectively avoid vehicle to occur unexpected lifting phenomenon in motion.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: air tank 1, power takeoff 2, power taking electromagnetic valve 3, power taking switch 4, meta cylinder 7, high-grade air extractor duct 71, low-grade air extractor duct 72, double H valve 8, double H valve admission port 81, double H valve air extractor duct 82, double H valve relief port 83, reducing valve 11, high-grade shielding valve 13, the two H control system 14 of back odd-side.
The specific embodiment
The present invention is further detailed explanation below in conjunction with description of drawings and the specific embodiment.
Referring to Fig. 1, the power takeoff control system that two H of cancellation driving power taking handle, comprise air tank 1 and power takeoff 2, described air tank 1 communicates with the admission port of power takeoff 2 behind power taking electromagnetic valve 3, the output shaft of power takeoff 2 is connected with gear type pump, and is in series with power taking switch 4 at the coil of power taking electromagnetic valve 3;
Described air tank 1 all communicates with power takeoff 2 admission ports, meta cylinder 7 admission ports behind power taking electromagnetic valve 3, high-grade shielding valve 13 successively, the air extractor duct of power takeoff 2 communicates with the rod chamber of power takeoff 2 control cylinders, and the air extractor duct of meta cylinder 7 is connected with double H valve 8 gas circuits in the two H control system 14 of back odd-side.
The described back two H control system 14 of odd-side comprise double H valve 8 and reducing valve 11, and the air extractor duct of described meta cylinder 7 comprises high-grade air extractor duct 71 and low-grade air extractor duct 72;
Described high-grade air extractor duct 71 communicates with double H valve admission port 81, low-grade air extractor duct 72 communicates with double H valve relief port 83, double H valve air extractor duct 82 communicates with air tank 1 behind reducing valve 11, and the coil of high-grade shielding valve 13 all communicates with low-grade air extractor duct 72, double H valve relief port 83.
The using method of the power takeoff control system that a kind of two H of above-mentioned cancellation driving power taking handle, described using method may further comprise the steps:
Press power taking switch 4 earlier, power taking electromagnetic valve 3 coil place circuit are switched on, the coil of power taking electromagnetic valve 3 gets, power taking electromagnetic valve 3 is opened, at this moment, pressurized air in the air tank 1 enters power takeoff 2 admission ports and meta cylinder 7 admission ports respectively successively behind power taking electromagnetic valve 3, high-grade shielding valve 13, wherein, enter pressurized air in the meta cylinder 7 enter again double H valve 8 in the two H control system 14 of back odd-side with the open slew device after the connection between mouth, the transmission shaft in the odd-side, transmission shaft stops operating, and vehicle is slack; Simultaneously, enter in the rod chamber that pressurized air in the power takeoff 2 enters power takeoff 2 control cylinders again with the power gear in the odd-side behind the power take-off gear that promotes power takeoff 2 and the change-speed box and be meshed, power takeoff 2 is capable, the output shaft driven gear pump of capable power takeoff 2 turn round to drive hydraulic efficiency pressure system carry out the lifting of vehicle, descend with in stop operation, thereby realization parking power taking.
Described high-grade shielding valve 13 is controlled folding by the gas in the low-grade air extractor duct 72.
Described double H valve 8 is by horizontal gear-shift lever control folding.
Principle of the present invention is described as follows:
Domestic through the automatic lifting when running at high speed of regular meeting's generation engineering dump truck, the phenomenon of clobber, it often is accompanied by serious traffic accident, even car crash, causes the tremendous economic loss.Described fault vehicle mates two layshaft gearbox more, from back odd-side tween drive shaft power taking, and be responsible for from power taking switch of the many employings of power takeoff control system of back odd-side tween drive shaft power taking controlling the power taking electromagnetic valve, after the power taking switch was pressed, high pressure air can arrive power takeoff and meta cylinder simultaneously, if change-speed box is in low-grade zone position, the meta cylinder then places neutral position with odd-side behind the change-speed box, power output is interrupted, and power takeoff work simultaneously realizes parking power taking function.
But there is potential safety hazard in this technology: if change-speed box is in high-grade zone position, though the meta cylinder can be pushed forward to the position, but because of the high-grade district ventilation of odd-side cylinder behind the change-speed box, cylinder piston is in foremost, and the back odd-side can not be placed neutral position, power output can not be interrupted, power takeoff work simultaneously realizes the power taking function, and this kind situation is when car load is run at high speed, easily cause traffic accidents such as " nose hit bridge ", have potential safety hazard.
In addition, the power takeoff in the existing control system directly is connected with power takeoff electromagnetic valve, air tank, in case power taking electromagnetic valve et out of order, as the crosstalk of power taking switch etc., long ventilation situation will appear in power takeoff, at this moment, power takeoff will be worked automatically, and unexpected lifting phenomenon easily takes place.
At above defective, the solution of having announced is a lot, but all can not guarantee safe power taking, still unexpected lifting phenomenon can appear when driving, and the present invention solves above defective from the control of propulsion source (power takeoff), not only can avoid the generation of unexpected lifting phenomenon, and parking power taking that can safety, safety is very strong, and cost performance is very high.
Embodiment 1:
The power takeoff control system that two H of cancellation driving power taking handle, comprise that air tank 1, power takeoff 2, power taking electromagnetic valve 3, power taking switch 4, meta cylinder 7, high-grade shielding valve 13 comprise double H valve 8 and reducing valve 11 with the two H control system 14 of back odd-side, the two H control system 14 of this back odd-side;
Described air tank 1 all communicates with power takeoff 2 admission ports, meta cylinder 7 admission ports behind power taking electromagnetic valve 3, high-grade shielding valve 13 successively, the air extractor duct of power takeoff 2 communicates with the rod chamber of power takeoff 2 control cylinders, the output shaft of power takeoff 2 is connected with gear type pump, and the air extractor duct of meta cylinder 7 is connected with double H valve 8 gas circuits in the two H control system 14 of back odd-side;
The described back two H control system 14 of odd-side comprise double H valve 8 and reducing valve 11, and the air extractor duct of described meta cylinder 7 comprises high-grade air extractor duct 71 and low-grade air extractor duct 72; Described high-grade air extractor duct 71 communicates with double H valve admission port 81, and low-grade air extractor duct 72 communicates with double H valve relief port 83, and double H valve air extractor duct 82 communicates with air tank 1 behind reducing valve 11;
Be in series with a power taking switch 4 on described power taking electromagnetic valve 3 coils, the coil of described high-grade shielding valve 13 all communicates with low-grade air extractor duct 72, double H valve relief port 83, and (high-grade shielding valve 13 is controlled folding by the gas in the low-grade air extractor duct 72, connect when in the pipeline gas being arranged, disconnect by spring when dying).
The using method of the power takeoff control system that a kind of two H of above-mentioned cancellation driving power taking handle, this using method may further comprise the steps:
Press power taking switch 4 earlier, power taking electromagnetic valve 3 coil place circuit are switched on, the coil of power taking electromagnetic valve 3 gets, power taking electromagnetic valve 3 is opened, at this moment, pressurized air in the air tank 1 is successively through power taking electromagnetic valve 3, enter power takeoff 2 admission ports and meta cylinder 7 admission ports respectively behind the high-grade shielding valve 13, wherein, enter pressurized air in the meta cylinder 7 and enter double H valve 8(double H valve 8 in the two H control system 14 of back odd-side again by horizontal gear-shift lever control folding) with mouth in the odd-side behind the open slew device, connection between the transmission shaft, transmission shaft stops operating, vehicle is slack, simultaneously, enter in the rod chamber that pressurized air in the power takeoff 2 enters power takeoff 2 control cylinders again with the power gear in the odd-side behind the power take-off gear that promotes power takeoff 2 and the change-speed box and be meshed, this moment, power takeoff 2 was capable, subsequently, the output shaft driven gear pump of capable power takeoff 2 turns round to drive the lifting that hydraulic efficiency pressure system is carried out vehicle, descend with in stop operation, thereby realize the parking power taking.
Claims (5)
1. cancel the power takeoff control system of two H manipulations of driving power taking, comprise air tank (1) and power takeoff (2), described air tank (1) communicates with the admission port of power takeoff (2) behind power taking electromagnetic valve (3), the output shaft of power takeoff (2) is connected with gear type pump, and the coil at power taking electromagnetic valve (3) is in series with power taking switch (4), it is characterized in that:
Described air tank (1) all communicates with power takeoff (2) admission port, meta cylinder (7) admission port behind power taking electromagnetic valve (3), high-grade shielding valve (13) successively, the air extractor duct of power takeoff (2) communicates with the rod chamber of power takeoff (2) control cylinder, and the air extractor duct of meta cylinder (7) is connected with double H valve (8) gas circuit in the two H control system (14) of back odd-side.
2. the power takeoff control system of two H manipulations of cancellation according to claim 1 driving power taking is characterized in that:
The described back two H control system (14) of odd-side comprise double H valve (8) and reducing valve (11), and the air extractor duct of described meta cylinder (7) comprises high-grade air extractor duct (71) and low-grade air extractor duct (72);
Described high-grade air extractor duct (71) communicates with double H valve admission port (81), low-grade air extractor duct (72) communicates with double H valve relief port (83), double H valve air extractor duct (82) communicates with air tank (1) behind reducing valve (11), and the coil of high-grade shielding valve (13) all communicates with low-grade air extractor duct (72), double H valve relief port (83).
3. the using method of the power takeoff control system of two H manipulations of the described cancellation driving of a claim 1 power taking is characterized in that described using method may further comprise the steps:
Press power taking switch (4) earlier, power taking electromagnetic valve (3) coil place circuit is switched on, the coil of power taking electromagnetic valve (3) gets, power taking electromagnetic valve (3) is opened, at this moment, pressurized air in the air tank (1) is successively through power taking electromagnetic valve (3), enter power takeoff (2) admission port and meta cylinder (7) admission port respectively behind the high-grade shielding valve (13), wherein, enter pressurized air in the meta cylinder (7) enter again double H valve (8) in the two H control system (14) of back odd-side with the open slew device after mouth in the odd-side, connection between the transmission shaft, transmission shaft stops operating, and vehicle is slack; Simultaneously, enter in the rod chamber that pressurized air in the power takeoff (2) enters power takeoff (2) control cylinder again with the power gear in the odd-side behind the power take-off gear that promotes power takeoff (2) and the change-speed box and be meshed, power takeoff (2) is capable, the output shaft driven gear pump of capable power takeoff (2) turn round to drive hydraulic efficiency pressure system carry out the lifting of vehicle, descend with in stop operation, thereby realization parking power taking.
4. the using method of the power takeoff control system handled of a kind of two H that cancel the driving power taking according to claim 3, it is characterized in that: the described high-grade valve (13) that shields is controlled folding by the gas in the low-grade air extractor duct (72).
5. the using method of the power takeoff control system handled of a kind of two H that cancel the driving power taking according to claim 3, it is characterized in that: described double H valve (8) is controlled folding by horizontal gear-shift lever.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310221872.6A CN103318066B (en) | 2013-06-06 | 2013-06-06 | The power takeoff device control system that the two H cancelling driving power taking handle and using method thereof |
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| CN201310221872.6A CN103318066B (en) | 2013-06-06 | 2013-06-06 | The power takeoff device control system that the two H cancelling driving power taking handle and using method thereof |
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| CN103318066B CN103318066B (en) | 2015-09-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583278A (en) * | 2018-03-30 | 2018-09-28 | 东风商用车有限公司 | A kind of power takeoff relay control system and its application method with clutch |
| CN108626389A (en) * | 2018-06-07 | 2018-10-09 | 陕西法士特汽车传动集团有限责任公司 | A kind of commercial car rear power takeoff work protection system |
| CN112483515A (en) * | 2020-12-08 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Self-discharging vehicle lifting control circuit, device and self-discharging vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583278A (en) * | 2018-03-30 | 2018-09-28 | 东风商用车有限公司 | A kind of power takeoff relay control system and its application method with clutch |
| CN108583278B (en) * | 2018-03-30 | 2023-05-05 | 东风商用车有限公司 | Power takeoff relay control system with clutch and application method thereof |
| CN108626389A (en) * | 2018-06-07 | 2018-10-09 | 陕西法士特汽车传动集团有限责任公司 | A kind of commercial car rear power takeoff work protection system |
| CN108626389B (en) * | 2018-06-07 | 2023-11-14 | 陕西法士特汽车传动集团有限责任公司 | Rear power takeoff work protection system of commercial vehicle |
| CN112483515A (en) * | 2020-12-08 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Self-discharging vehicle lifting control circuit, device and self-discharging vehicle |
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| CN103318066B (en) | 2015-09-09 |
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Address after: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan Patentee after: dFac Address before: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan Patentee before: Dongfeng Car Co. |