CN108679217A - Loader-digger gearbox electric-control system - Google Patents
Loader-digger gearbox electric-control system Download PDFInfo
- Publication number
- CN108679217A CN108679217A CN201810670531.XA CN201810670531A CN108679217A CN 108679217 A CN108679217 A CN 108679217A CN 201810670531 A CN201810670531 A CN 201810670531A CN 108679217 A CN108679217 A CN 108679217A
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- China
- Prior art keywords
- solenoid valve
- gear
- control system
- electric
- time
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a kind of loader-digger gearbox electric-control systems, belong to engineering machinery field.It includes gear selector, reversing solenoid valve, gear solenoid valve, time-delay relay and accumulator, the gear selector port respectively with reversing solenoid valve, gear solenoid valve, time-delay relay connects, independent power input port there are two being set on the gear selector, two independent power input ports are respectively reversing solenoid valve and the power supply of gear solenoid valve, the reversing solenoid valve and the gear solenoid valve are used to control the oil charging-discharging of gear clutch, the time-delay relay is not powered off for controlling in gear solenoid valve setting time, the accumulator is used to power for the electric-control system.The present invention, to gear solenoid valve control, is realized gear clutch in interior disengagement of not draining the oil in short-term, improves gear shift efficiency, greatly improve the working efficiency in a working cycles by time-delay relay.
Description
Technical field
The invention belongs to a kind of work machine control systems, specifically, more particularly to a kind of loader-digger gearbox
Electric-control system.
Background technology
It is well known that the working condition of loader-digger is mainly spading operation and loading operation, it is high-efficient homework, complete machine
The switch operation for needing frequently progress forward-reverse, is all to pass through excavation for being equipped with the type of electrically controlled gearbox or more and acting
What loading machine gearbox electric control system controls were realized.
Loader-digger gearbox electric-control system is generally mainly by gear selector, gearbox control, reversing solenoid valve
And gear solenoid valve, harness composition.For loader-digger during loading operation, each loading operation period needs commutation 4
Secondary, each gear clutch that commutates every time needs to carry out oil-filled process of draining the oil, however mainly used in loading operation 1 grade or
2 grades, the gear clutch of gear solenoid valve control has carried out the process of unnecessary oil charging-discharging when commutating every time, seriously affects
Working efficiency increases oil consumption, has compressed the profit space of user, reduces product competitiveness.In addition, current engineering machinery row
The gearbox type of industry is various, each electrically controlled gearbox needs specially to develop dedicated selector lever or exploitation price more
Expensive controller, and the performance difference of different selector levers and controller is very big, increases the purchase vehicle cost of user and makes
With detection maintenance cost in the process.
Invention content
It is an object of the present invention to provide a kind of loader-digger gearbox electric-control systems, are loaded with overcoming to excavate in the prior art
The gear clutch of gear solenoid valve control has carried out unnecessary oil charging-discharging process when machine gearbox electric-control system commutates every time
Defect.
Realization that the present invention adopts the following technical solutions：
Loader-digger gearbox electric-control system of the present invention, including gear selector, reversing solenoid valve, gear electricity
Magnet valve, time-delay relay and accumulator, the gear selector port respectively with reversing solenoid valve, gear solenoid valve, delay after
Electric appliance connects, and is set on the gear selector there are two independent power input port, two independent power input ports are divided
Not Wei reversing solenoid valve and the power supply of gear solenoid valve, the reversing solenoid valve and the gear solenoid valve are for controlling gear clutch
The oil charging-discharging of device, the time-delay relay are not powered off for controlling in gear solenoid valve setting time, and the accumulator is for being
The electric-control system power supply.
The reversing solenoid valve includes Y1 advances solenoid valve, Y2 retrogressing solenoid valves.
The gear solenoid valve includes Y3 gears solenoid valve, Y4 gears solenoid valve, Y5 gears solenoid valve, Y6 gear electromagnetism
Valve.
The electric-control system further includes the intermediate relay converted for signal.
The electric-control system further includes the fly-wheel diode for eliminating circuit external interference.
The time-delay relay sets control time for not powering off of gear solenoid valve as 1S.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention realizes gear clutch and is not put interior in short-term by time-delay relay to gear solenoid valve control
Oil disengages, and improves gear shift efficiency, greatly improves the working efficiency in a working cycles；
(2) generalization of the invention for realizing selector lever may be implemented by the function switching signal of intermediate relay
Reliability is high to be suitable for other gearboxes by gear selector.
Description of the drawings
Fig. 1 is the circuit diagram of the present invention；
Fig. 2 is the schematic diagram of the time-delay relay of the present invention；
Fig. 3 is the gear selector and gearbox solenoid valve logic chart of the present invention；
In figure：1, intermediate relay；2, gear selector；3, time-delay relay；4, diode；5, accumulator；6, after Y2
Move back solenoid valve；7, Y1 advances solenoid valve；8, Y3 gears solenoid valve；9, Y4 gears solenoid valve；10, Y5 gears solenoid valve；11, Y6 grades
Position solenoid valve.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1：
As shown in Figure 1, loader-digger gearbox electric-control system of the present invention, including gear selector 2, commutation electricity
Magnet valve, gear solenoid valve, time-delay relay 3 and accumulator 5,2 port of gear selector respectively with reversing solenoid valve, gear electromagnetism
Valve, time-delay relay 3 connect, and set that there are two independent power input port, two independent power inputs on gear selector 2
Port is respectively reversing solenoid valve and the power supply of gear solenoid valve, reversing solenoid valve and the gear solenoid valve for control gear from
The oil charging-discharging of clutch, time-delay relay 3 are not powered off for controlling in the gear solenoid valve setting short time, and accumulator 5 is used for as institute
State electric-control system power supply.Wherein, reversing solenoid valve includes Y1 advances solenoid valve 7, Y2 retrogressing solenoid valves 6；Gear solenoid valve includes
Y3 gears solenoid valve 8, Y4 gears solenoid valve 9, Y5 gears solenoid valve 10, Y6 gears solenoid valve 11；Electric-control system further includes being used for
Eliminate the fly-wheel diode 4 of circuit external interference.
2 operation principle of gear selector：Function declaration now is carried out by taking advance 1 grade and 1 grade of retrogressing as an example, it is specific as follows：Shelves
2 port 1 of digit selector is the power inlet of Y1 advances solenoid valve 7, Y2 retrogressing solenoid valves 6, and 2 port 9 of gear selector is Y3
The power inlet of gear solenoid valve 8, Y4 gears solenoid valve 9, Y5 gears solenoid valve 10, Y6 gears solenoid valve 11, other ports
For signal output；When gear selector 2 is in 1 grade of drive shift, 2 port 5,2,7 of gear selector exports high level signal；Shelves
When digit selector 2 is in 1 grade of reverse drive gear, 2 port 6,2,7 of gear selector exports high level.
As shown in Figure 1 and Figure 2, the operation principle of time-delay relay 3：Port 85 inputs for 3 coil power of time-delay relay
Mouthful, port 86 is 3 coil grounding ports of time-delay relay, and port 30 is the public port of 3 controlled end of time-delay relay, port 87
For the normally opened port of 3 controlled end of time-delay relay, port 87a is the normally closed port of 3 controlled end of time-delay relay, when port 85 has
Rated voltage, port 86 are grounded simultaneously, and time-delay relay 3 is attracted 30 feet immediately and 87 feet are connected, and 3 inside of time-delay relay is kept
Attracting state, when No. 85 foot power-off times are less than or equal to 1S, 30 feet are remained up with 87 feet, when No. 85 foot power-off times are more than
When 1S, 30 feet and 87 feet disconnect.
In work cycle, when gear selector 2 from advance 1 grade be switched to retrogressing 1 grade when, if the switching action when
Between be less than or equal to 1S, time-delay relay 3 will not have actual machine action, the power cord of the gear solenoid valve of gear selector 2
It is always maintained at electricity, Y3 gears solenoid valve 8, Y5 gears solenoid valve 10 will be always maintained at electricity, Y3 gears solenoid valve 8, Y5 gears
The gear clutch that solenoid valve 10 controls will be always maintained at oil-filled state and not disengage, avoided in entire work cycle gear from
The Oil feeding process of draining the oil of clutch, reduces shift time, improves work efficiency.Fig. 3 show gear selector 2 and gearbox
Solenoid valve logic chart.
Embodiment 2：
As shown in Figure 1, the electric-control system further includes the intermediate relay 1 converted for signal, intermediate relay 1 is basic
Principle：Port 86 is 1 coil power input port of intermediate relay, 1 coil grounding ports of the intermediate relay of port 85, port 30
For the public port of 1 controlled end of intermediate relay, port 87 is the normally opened port of 1 controlled end of intermediate relay, during port 87a is
Between 1 controlled end of relay normally closed port；When port 86 has rated voltage, port 85 to be grounded simultaneously, intermediate relay 1 will immediately
Being connected from 30 with 87a becomes 30 and 87 conductings.Intermediate relay 1 is converted by the output signal to gear selector 2, can
To realize that gear selector 2 is suitable for other gearboxes, the generalization of gear selector 2 is realized, development cost is reduced.
Other contents of the present embodiment are same as Example 1.
Claims (6)
1. a kind of loader-digger gearbox electric-control system, it is characterised in that：Including gear selector (2), reversing solenoid valve, shelves
Position solenoid valve, time-delay relay (3) and accumulator (5), gear selector (2) port respectively with reversing solenoid valve, gear
Solenoid valve, time-delay relay (3) connect, and are set on the gear selector (2) there are two independent power input port, two only
Vertical power input port is respectively that reversing solenoid valve and gear solenoid valve are powered, the reversing solenoid valve and the gear electromagnetism
Valve is used to control the oil charging-discharging of gear clutch, and the time-delay relay (3) is for controlling in the gear solenoid valve setting short time
It does not power off, the accumulator (5) is used to power for the electric-control system.
2. loader-digger gearbox electric-control system according to claim 1, it is characterised in that：The reversing solenoid valve packet
Include Y1 advances solenoid valve (7), Y2 retreats solenoid valve (6).
3. loader-digger gearbox electric-control system according to claim 2, it is characterised in that：The gear solenoid valve packet
Include Y3 gears solenoid valve (8), Y4 gears solenoid valve (9), Y5 gears solenoid valve (10), Y6 gears solenoid valve (11).
4. loader-digger gearbox electric-control system according to claim 1, it is characterised in that：The electric-control system also wraps
Include the intermediate relay (1) converted for signal.
5. loader-digger gearbox electric-control system according to claim 1, it is characterised in that：The electric-control system also wraps
Include the diode (4) for eliminating circuit external interference.
6. the loader-digger gearbox electric-control system according to claim 1-5 any one, it is characterised in that：It is described to prolong
When relay (3) set control gear solenoid valve constantly electric switching time as 1S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670531.XA CN108679217B (en) | 2018-06-26 | 2018-06-26 | Electric control system for gearbox of backhoe loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670531.XA CN108679217B (en) | 2018-06-26 | 2018-06-26 | Electric control system for gearbox of backhoe loader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108679217A true CN108679217A (en) | 2018-10-19 |
| CN108679217B CN108679217B (en) | 2021-02-05 |
Family
ID=63812451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810670531.XA Active CN108679217B (en) | 2018-06-26 | 2018-06-26 | Electric control system for gearbox of backhoe loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108679217B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559818Y (en) * | 2002-08-23 | 2003-07-09 | 徐州装载机厂 | Electrohydraulic variable speed operated valve |
| CN200999858Y (en) * | 2007-01-27 | 2008-01-02 | 徐工集团工程机械有限公司试验研究中心 | Electric-controlled speed changing box shift controller |
| CN101255918A (en) * | 2008-04-03 | 2008-09-03 | 常林股份有限公司 | Controller for shifting of gearbox |
| CN201297376Y (en) * | 2008-10-17 | 2009-08-26 | 天津港集装箱货运有限公司 | Electrical control circuit of electronic hydraulic transmission box |
| CN203189801U (en) * | 2012-11-23 | 2013-09-11 | 天津工程机械研究院 | Electro-hydraulic shift control valve for loader speed changer |
| CN103958943A (en) * | 2012-08-20 | 2014-07-30 | 株式会社小松制作所 | Works vehicle and method for controlling works vehicle |
| CN204226568U (en) * | 2014-11-27 | 2015-03-25 | 山推工程机械股份有限公司 | The automatically controlled speed variator system of a kind of bulldozer |
| CN105221741A (en) * | 2015-10-13 | 2016-01-06 | 中外合资沃得重工（中国）有限公司 | Loader electrically controlled gearbox hydraulic control device |
-
2018
- 2018-06-26 CN CN201810670531.XA patent/CN108679217B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559818Y (en) * | 2002-08-23 | 2003-07-09 | 徐州装载机厂 | Electrohydraulic variable speed operated valve |
| CN200999858Y (en) * | 2007-01-27 | 2008-01-02 | 徐工集团工程机械有限公司试验研究中心 | Electric-controlled speed changing box shift controller |
| CN101255918A (en) * | 2008-04-03 | 2008-09-03 | 常林股份有限公司 | Controller for shifting of gearbox |
| CN201297376Y (en) * | 2008-10-17 | 2009-08-26 | 天津港集装箱货运有限公司 | Electrical control circuit of electronic hydraulic transmission box |
| CN103958943A (en) * | 2012-08-20 | 2014-07-30 | 株式会社小松制作所 | Works vehicle and method for controlling works vehicle |
| CN203189801U (en) * | 2012-11-23 | 2013-09-11 | 天津工程机械研究院 | Electro-hydraulic shift control valve for loader speed changer |
| CN204226568U (en) * | 2014-11-27 | 2015-03-25 | 山推工程机械股份有限公司 | The automatically controlled speed variator system of a kind of bulldozer |
| CN105221741A (en) * | 2015-10-13 | 2016-01-06 | 中外合资沃得重工（中国）有限公司 | Loader electrically controlled gearbox hydraulic control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108679217B (en) | 2021-02-05 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electric control system of excavator loader gearbox Effective date of registration: 20211217 Granted publication date: 20210205 Pledgee: Industrial and Commercial Bank of China Limited Linyi Economic Development Zone sub branch Pledgor: SHANDONG LINGONG CONSTRUCTION MACHINERY Co.,Ltd. Registration number: Y2021980015222 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |