CN110670663A - Electronic double-throttle system of skid steer loader - Google Patents
Electronic double-throttle system of skid steer loader Download PDFInfo
- Publication number
- CN110670663A CN110670663A CN201911052979.6A CN201911052979A CN110670663A CN 110670663 A CN110670663 A CN 110670663A CN 201911052979 A CN201911052979 A CN 201911052979A CN 110670663 A CN110670663 A CN 110670663A
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- Prior art keywords
- throttle
- control unit
- electronic control
- foot
- hand throttle
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- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 230000009977 dual effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
- E02F9/2012—Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation
Abstract
The invention discloses an electronic double-throttle system of a skid steer loader, and belongs to the technical field of engineering machinery and industrial vehicles. The method comprises the following steps: the output end of the electronic control unit is connected with the oil injection pump in a control way through a lead; the hand throttle is arranged in the cab, and the output end of the hand throttle is connected with the electronic control unit through a lead; the foot accelerator is arranged on the frame, and the output end of the foot accelerator is connected with the electronic control unit through a wire. The model number of the electronic control unit is 1R1994-00010, the model number of the hand throttle is 406788, and the model number of the foot throttle is 406798. The invention solves the problems that the flexible shaft is frozen and knotted in a low-temperature environment, the idle stroke is large, the rotating speed of an engine cannot be adjusted, and the whole vehicle cannot normally walk and work; the requirement that the engine runs at a constant rotating speed is met through the hand throttle, and the precision efficiency of the whole machine operation is improved; the electronic control unit executes the operation with relatively large signals of the hand throttle and the foot throttle, and improves the working efficiency.
Description
Technical Field
The invention relates to a skid steer loader, in particular to an electronic double-throttle system of the skid steer loader, and belongs to the technical field of engineering machinery and industrial vehicles.
Background
The skid steer loader is a wheel type special chassis device which realizes vehicle steering by utilizing linear velocity difference of wheels at two sides. The device is mainly used for occasions with narrow operation places, uneven ground and frequent operation content change.
The throttle adjusting system of the skid steer loader mainly adopts a mechanical flexible shaft to match with a throttle sensor to realize the adjustment of the rotating speed of the engine, for example, a flexible shaft linkage connecting rod mechanism (CN 101831934A) controlled by double throttle disclosed in Chinese patent comprises a hand throttle assembly, a hand throttle flexible shaft, a pedal flexible shaft bracket, a return spring, a pedal, an engine connecting throttle fork joint, a foot throttle flexible shaft and foot throttle bracket fixing bolt, a foot throttle limiting bolt, a hand brake pulling plate and a hand brake bracket fixing bolt, wherein one end of the hand throttle flexible shaft is connected with the hand throttle assembly, and the other end is connected with the pedal flexible shaft bracket; the pedal is connected on the pedal flexible shaft support, the pedal extends downwards from the rotating shaft, a return spring is connected between the extending end and the pedal flexible shaft support, pedal flexible shaft supports on two sides of the extending section are connected with foot accelerator support fixing bolts, the extending end is connected with the foot accelerator flexible shaft, the end of the foot accelerator flexible shaft is provided with an engine to be connected with an accelerator fork joint, a hand brake pulling plate is further connected on the rotating shaft of the pedal, and the hand brake pulling plate is connected with a core shaft of the hand accelerator flexible shaft.
In practice, this system has two disadvantages:
firstly, the whole space of the skid steer loader is limited, if the accelerator flexible shaft is unreasonably arranged, the flexible shaft is easy to be stuck, the idle stroke is large, the rotating speed of an engine does not change when the accelerator is operated, and the whole vehicle cannot normally walk and work.
Second, in cold regions, vehicles are stored in the open air. The icing phenomenon of the accelerator flexible shaft is very common, after the accelerator flexible shaft is iced, the flexible shaft is completely blocked, the rotating speed of an engine cannot be adjusted, and the whole vehicle cannot normally walk and work.
Disclosure of Invention
In order to solve the technical problem, the invention provides an electronic double-throttle system of a skid steer loader.
The technical scheme adopted by the invention is as follows: an electronic dual throttle system for a skid steer loader comprising:
the output end of the electronic control unit is connected with the oil injection pump in a control way through a lead;
the hand throttle is arranged in the cab, and the output end of the hand throttle is connected with the electronic control unit through a lead;
the foot accelerator is arranged on the frame, and the output end of the foot accelerator is connected with the electronic control unit through a wire.
It further comprises the following steps: the electronic control unit is 1R1994-00010, the hand throttle is 406788, and the foot throttle is 406798.
The power supply end of the hand throttle is connected to an E38 pin of the electronic control unit through a lead, the signal end of the hand throttle is connected to an E35 pin of the electronic control unit through a lead, and the grounding end of the hand throttle is connected to an E28 pin of the electronic control unit through a lead;
the power supply end of the foot accelerator is connected to an E38 pin of the electronic control unit through a wire, the signal end of the foot accelerator is connected to an E37 pin of the electronic control unit through a wire, and the grounding end of the foot accelerator is connected to an E28 pin of the electronic control unit through a wire.
The output voltage of the signal end of the hand throttle is 0.75V-3.84V.
And operating the hand throttle to any position and then releasing the hand throttle, wherein the output voltage of the signal end of the hand throttle is kept at the voltage value of the position.
The output voltage of the signal end of the foot accelerator is 0.75V-3.84V.
And the electronic control unit is connected with a fault indicator lamp.
The electronic control unit receives a voltage signal of a signal end of the hand throttle and a voltage signal of a signal end of the foot throttle at the same time, and executes relatively large operation in the hand throttle voltage signal and the foot throttle voltage signal.
Compared with the prior art, the invention has the beneficial effects that:
the problems that the flexible shaft is frozen and knotted in a low-temperature environment, the idle stroke is large, the rotating speed of an engine cannot be adjusted, and the whole vehicle cannot normally walk and work are solved;
the requirement that the engine runs at a constant rotating speed is met through the hand throttle, and the precision efficiency of the whole machine operation is improved;
the electronic control unit executes the operation with relatively large signals of the hand throttle and the foot throttle, and improves the working efficiency.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The following are specific embodiments of the present invention, and the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, an electronic dual throttle system of a skid steer loader comprises:
the output end of the electronic control unit is connected with the oil injection pump through a lead in a control way and is used for controlling the oil injection quantity of the oil injection pump;
the hand throttle 1 is arranged in the cab, the output end of the hand throttle is connected with the electronic control unit through a lead, and an operation signal of the hand throttle 1 is output to the electronic control unit through the lead;
the foot accelerator 2 is installed on the frame, the output end of the foot accelerator is connected with the electronic control unit through a wire, and an operation signal of the foot accelerator 2 is output to the electronic control unit through the wire.
Preferably:
the model of the electronic control unit is 1R1994-00010, the model of the hand throttle is 406788, and the model of the foot throttle is 406798;
the power supply end of the hand throttle is connected to the E38 pin of the electronic control unit through a lead, the signal end of the hand throttle is connected to the E35 pin of the electronic control unit through a lead, and the grounding end of the hand throttle is connected to the E28 pin of the electronic control unit through a lead. In the embodiment, the output voltage of the signal end of the hand throttle is 0.75V-3.84V;
the power supply end of the foot accelerator is connected to an E38 pin of the electronic control unit through a lead, the signal end of the foot accelerator is connected to an E37 pin of the electronic control unit through a lead, and the grounding end of the foot accelerator is connected to an E28 pin of the electronic control unit through a lead. In the embodiment, the output voltage of the signal end of the foot accelerator is 0.75V-3.84V;
the electronic control unit receives the voltage signal of the signal end of the hand throttle and the voltage signal of the signal end of the foot throttle at the same time, and adjusts the oil supply amount of the oil injection pump according to the difference of the voltage signals received by the E35 pin of the electronic control unit, so that the purpose of adjusting the rotating speed of the engine is achieved. The electronic control unit executes a relatively large operation of the hand throttle voltage signal and the foot throttle voltage signal.
When the hand throttle is operated to any position and then the hand throttle is released, according to the mechanical characteristics of the hand throttle, the output voltage of the signal end of the hand throttle can be kept at the voltage value of the position, then the electronic control unit keeps the oil supply quantity of the oil injection pump at a fixed value according to the fixed voltage value received by the E35 pin, so that the rotating speed of the engine is kept at a fixed value, the requirement that the engine runs at a constant rotating speed is met, and the precision efficiency of the whole machine operation is improved.
The electronic control unit is connected with a fault indicator lamp, and when the hand throttle and the foot throttle are in fault, an operator is reminded to troubleshoot related faults through the flashing frequency of the electronic control unit indicator lamp.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. An electronic dual throttle system for a skid steer loader, comprising:
the output end of the electronic control unit is connected with the oil injection pump in a control way through a lead;
the hand throttle is arranged in the cab, and the output end of the hand throttle is connected with the electronic control unit through a lead;
the foot accelerator is arranged on the frame, and the output end of the foot accelerator is connected with the electronic control unit through a wire.
2. The electronic dual throttle system of a skid steer loader of claim 1, wherein: the electronic control unit is 1R1994-00010, the hand throttle is 406788, and the foot throttle is 406798.
3. The electronic dual throttle system of a skid steer loader of claim 2, wherein: the power supply end of the hand throttle is connected to an E38 pin of the electronic control unit through a lead, the signal end of the hand throttle is connected to an E35 pin of the electronic control unit through a lead, and the grounding end of the hand throttle is connected to an E28 pin of the electronic control unit through a lead;
the power supply end of the foot accelerator is connected to an E38 pin of the electronic control unit through a wire, the signal end of the foot accelerator is connected to an E37 pin of the electronic control unit through a wire, and the grounding end of the foot accelerator is connected to an E28 pin of the electronic control unit through a wire.
4. The electronic dual throttle system of a skid steer loader of claim 3, wherein: the output voltage of the signal end of the hand throttle is 0.75V-3.84V.
5. The electronic dual throttle system of a skid steer loader of claim 3, wherein: and operating the hand throttle to any position and then releasing the hand throttle, wherein the output voltage of the signal end of the hand throttle is kept at the voltage value of the position.
6. The electronic dual throttle system of a skid steer loader of claim 3, wherein: the output voltage of the signal end of the foot accelerator is 0.75V-3.84V.
7. The electronic dual throttle system of a skid steer loader of claim 3, wherein: and the electronic control unit is connected with a fault indicator lamp.
8. The electronic dual throttle system of a skid steer loader of claim 3, wherein: the electronic control unit receives a voltage signal of a signal end of the hand throttle and a voltage signal of a signal end of the foot throttle at the same time, and executes relatively large operation in the hand throttle voltage signal and the foot throttle voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911052979.6A CN110670663A (en) | 2019-10-31 | 2019-10-31 | Electronic double-throttle system of skid steer loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911052979.6A CN110670663A (en) | 2019-10-31 | 2019-10-31 | Electronic double-throttle system of skid steer loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110670663A true CN110670663A (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911052979.6A Pending CN110670663A (en) | 2019-10-31 | 2019-10-31 | Electronic double-throttle system of skid steer loader |
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| CN (1) | CN110670663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266476A (en) * | 2021-06-07 | 2021-08-17 | 潍柴动力股份有限公司 | Control method and control system for whole vehicle walking and engine rotating speed |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201535202U (en) * | 2009-04-03 | 2010-07-28 | 辽宁抚挖重工机械股份有限公司 | Motor throttle control device |
| CN101831934A (en) * | 2010-04-09 | 2010-09-15 | 徐州徐工特种工程机械有限公司 | Flexible shaft connecting link mechanism for double-accelerator control |
| CN201835925U (en) * | 2010-11-04 | 2011-05-18 | 天津山河装备开发有限公司 | Combined type control system of electronic control accelerator on crawler crane |
| JP2012082839A (en) * | 2012-01-30 | 2012-04-26 | Kubota Corp | Engine revolution control structure of working vehicle |
| US20130291832A1 (en) * | 2011-01-11 | 2013-11-07 | Daedong Industrial Co., Ltd. | System for selective use of pedal for controlling number of revolution for engine of work vehicle |
| CN108087129A (en) * | 2017-12-13 | 2018-05-29 | 天津雷沃发动机有限公司 | The throttle control system and control method of electric-control motor |
| CN108506100A (en) * | 2018-05-18 | 2018-09-07 | 湖北超能农业装备有限公司 | Accelerator control device and agricultural equipment |
| CN211172174U (en) * | 2019-10-31 | 2020-08-04 | 徐工集团工程机械股份有限公司科技分公司 | Electronic double-throttle system of skid steer loader |
-
2019
- 2019-10-31 CN CN201911052979.6A patent/CN110670663A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201535202U (en) * | 2009-04-03 | 2010-07-28 | 辽宁抚挖重工机械股份有限公司 | Motor throttle control device |
| CN101831934A (en) * | 2010-04-09 | 2010-09-15 | 徐州徐工特种工程机械有限公司 | Flexible shaft connecting link mechanism for double-accelerator control |
| CN201835925U (en) * | 2010-11-04 | 2011-05-18 | 天津山河装备开发有限公司 | Combined type control system of electronic control accelerator on crawler crane |
| US20130291832A1 (en) * | 2011-01-11 | 2013-11-07 | Daedong Industrial Co., Ltd. | System for selective use of pedal for controlling number of revolution for engine of work vehicle |
| JP2012082839A (en) * | 2012-01-30 | 2012-04-26 | Kubota Corp | Engine revolution control structure of working vehicle |
| CN108087129A (en) * | 2017-12-13 | 2018-05-29 | 天津雷沃发动机有限公司 | The throttle control system and control method of electric-control motor |
| CN108506100A (en) * | 2018-05-18 | 2018-09-07 | 湖北超能农业装备有限公司 | Accelerator control device and agricultural equipment |
| CN211172174U (en) * | 2019-10-31 | 2020-08-04 | 徐工集团工程机械股份有限公司科技分公司 | Electronic double-throttle system of skid steer loader |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266476A (en) * | 2021-06-07 | 2021-08-17 | 潍柴动力股份有限公司 | Control method and control system for whole vehicle walking and engine rotating speed |
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