CN110513472A - A kind of agricultural machinery automatic transmission control oil sources block - Google Patents
A kind of agricultural machinery automatic transmission control oil sources block Download PDFInfo
- Publication number
- CN110513472A CN110513472A CN201910907543.4A CN201910907543A CN110513472A CN 110513472 A CN110513472 A CN 110513472A CN 201910907543 A CN201910907543 A CN 201910907543A CN 110513472 A CN110513472 A CN 110513472A
- Authority
- CN
- China
- Prior art keywords
- oil
- oil inlet
- directional control
- control valve
- filter
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000009977 dual effect Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 80
- 239000000446 fuel Substances 0.000 description 11
- 230000007935 neutral effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009414 blockwork Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
-
- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
-
- 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
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
-
- 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
- F16H61/0021—Generation or control of line pressure
- F16H2061/0034—Accumulators for fluid pressure supply; Control thereof
-
- 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
- F16H61/0021—Generation or control of line pressure
- F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a kind of agricultural machinery automatic transmission to control oil sources block, including oil inlet port P, oil return port T, filter with bypass, pilot operated directional control valve, pressure reducing valve, accumulator and two-bit triplet solenoid directional control valve, the oil inlet port P is connect by fluid pressure line with the oil inlet port of the filter with bypass, the oil outlet of filter with bypass and the oil inlet end of pilot operated directional control valve connect, the upper outlet end of pilot operated directional control valve and the oil inlet end of pressure reducing valve connect, the next outlet end of pilot operated directional control valve and the oil inlet end of accumulator connect, the dual function of electro-hydraulic control gear shift and forced feed lubrication may be implemented in this agricultural machinery automatic transmission control oil sources block, guarantee that shifting speed is stablized in gearshift procedure, it is preferential to guarantee that gear supply pressure oil does not interrupt, ensure not lose gear, the labor intensity and proficiency of driver are substantially reduced simultaneously, it is special It Shi Yongyu not unmanned, remote driving agricultural machinery speed change system.
Description
Technical field
The present invention relates to transmission technology field, specially a kind of agricultural machinery automatic transmission controls oil sources block.
Background technique
Traditional agricultural machinery relies on manual shift substantially, needs pilot control gear shifting handle, Lai Shixian gearshift procedure, to driving
The skilled operation degree of member requires height, and large labor intensity.
Manual transmission usually works under high load capacity as traditional power transmission part, moving component, in addition frequently
Impact, is also easy to produce failure brought by gear shift and unreasonable operation.For example, in gearshift procedure, shifting of transmission handle without
Method is successfully pushed into corresponding gear, and in vehicle driving up or by jolting road surface, shifting of transmission handle can be suddenly from certain
A gear skips to neutral gear automatically, causes power interruption, or there are random shelves.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of agricultural machinery automatic transmission control oil sources
The dual function of electro-hydraulic control gear shift and forced feed lubrication may be implemented in block, guarantees that shifting speed is stablized in gearshift procedure, preferential to guarantee
Gear supply pressure oil does not interrupt, it is ensured that does not lose gear, while substantially reducing the labor intensity and proficiency of driver, especially
Suitable for unmanned, remote driving agricultural machinery speed change system, the problems in background technique can be effectively solved.
To achieve the above object, the invention provides the following technical scheme: a kind of agricultural machinery automatic transmission controls oil sources block, packet
It includes oil inlet port P, oil return port T, changed with filter, pilot operated directional control valve, pressure reducing valve, accumulator and the two-bit triplet electromagnetism bypassed
To valve, the oil inlet port P is connect by fluid pressure line with the oil inlet port of the filter with bypass, the filter with bypass
The connection of the oil inlet end of oil outlet and pilot operated directional control valve, the next outlet end of pilot operated directional control valve and the oil inlet end of pressure reducing valve connect,
The upper outlet end of pilot operated directional control valve and the oil inlet end of accumulator connect, the oil outlet and two-bit triplet electromagnetic switch of accumulator
The next oil outlet of the next oil inlet end connection of valve, two-bit triplet solenoid directional control valve is connect with oil return port T, and described two
The input terminal of three-way solenoid valve is electrically connected with the output end of external electric-control system.
As a preferred technical solution of the present invention, the oil inlet port P passes through second one-way valve and the mistake with bypass
Filter connection.
As a preferred technical solution of the present invention, the upper outlet end of the pilot operated directional control valve is unidirectional by third
The connection of the oil inlet end of valve and accumulator.
As a preferred technical solution of the present invention, the oil outlet of the filter of the band bypass is also connected with safety
Valve.
As a preferred technical solution of the present invention, the oil inlet end of the filter of the band bypass passes through the first check valve
It is connect with emergency oil sources.
As a preferred technical solution of the present invention, the oil inlet port P, the filter with bypass, pilot operated directional control valve
Accumulation of energy oil circuit is constituted with accumulator.
As a preferred technical solution of the present invention, the oil inlet port P, with bypass filter, pilot operated directional control valve,
Accumulator and two-bit triplet solenoid directional control valve constitute gear oil feeding line.
As a preferred technical solution of the present invention, the oil inlet port P, the filter with bypass, pilot operated directional control valve
Lubricant passage way is constituted with pressure reducing valve.
As a preferred technical solution of the present invention, the oil inlet port P, the filter with bypass and safety valve are constituted
Off-load oil circuit.
Compared with prior art, the beneficial effects of the present invention are: the control oil sources block design of this agricultural machinery automatic transmission is reasonable,
Of a tightly knit structure, the dual function that electro-hydraulic control gear shift and forced feed lubrication may be implemented works as filtering by the way that the filter with bypass is arranged
Device block when, can by the check valve of bypass carry out fuel feeding, ensure gear control and lubrication pressure oil not reduce, not in
Disconnected, the safety of effective protection speed changer and operator, pilot operated directional control valve plays pressure-gradient control valve, preferentially guarantees to gear fuel feeding
Oil circuit supply pressure oil, it is ensured that do not lose gear, guarantee that power transmission is not interrupted, by the way that the control of two-bit triplet solenoid directional control valve is arranged
Gear shifting hydraulic processed oil into and out of oil circuit, can be realized gear control fuel feeding, emergency braking oil-break makes transmission neutral, further
Sound assurance is generated to the safety of equipment and personnel, the setting of accumulator can reduce impact caused by DFF Direct Fuel Feed, play
Damping, the effect of buffering, the effective stability for guaranteeing control oil sources block work.
Detailed description of the invention
Fig. 1 is principle schematic diagram of the present invention.
In figure: 1 two-bit triplet solenoid directional control valve, 2 accumulators, 3 pressure reducing valves, 4 first check valves, 5 pilot operated directional control valves, 6 bands
The filter of bypass, 7 second one-way valves, 8 safety valves, 9 third check valves, 10, emergency oil sources.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of agricultural machinery automatic transmission control oil sources block, including into
Oily port P, oil return port T, filter 6, pilot operated directional control valve 5, pressure reducing valve 3, accumulator 2 and two-bit triplet electromagnetism with bypass change
To valve 1, oil inlet port P is connect by fluid pressure line with the oil inlet port of the filter 6 with bypass, the filter 6 with bypass
Oil inlet end is connect by the first check valve 4 with emergency oil sources 10, and oil inlet port P passes through second one-way valve 7 and the filtering with bypass
Device 6 connects, and the setting of the first check valve 4, second one-way valve 7 and oil sources 10 of meeting an urgent need can guarantee that vehicle failure cannot be timely
When fuel feeding, can by emergency oil sources 10 carry out fuel feeding, come maintain vehicle working portion lubrication, reduce workpiece between
The oil outlet of abrasion, the filter 6 with bypass is connect with the oil inlet end of pilot operated directional control valve 5, the oil outlet of the filter 6 with bypass
It is also connected with safety valve 8, the setting of safety valve 8, in hydraulic system fault, safety valve 8 is in access, maximum pressure is limited,
Play the role of safeguard protection, it is ensured that speed changer does not damage, and the upper outlet end of pilot operated directional control valve 5 passes through third check valve 9
Connect with the oil inlet end of accumulator 2, the setting of third check valve 9 ensures that pressure is constant in accumulator 2, gearshift control pressure not by
The next outlet end of the influence fluctuated to charge oil pressure, pilot operated directional control valve 5 is connect with the oil inlet end of pressure reducing valve 3, liquid controlled reversing
The upper outlet end of valve 5 is connect with the oil inlet end of accumulator 2, oil outlet and the two-bit triplet solenoid directional control valve 1 of accumulator 2
The next oil outlet of the next oil inlet end connection, two-bit triplet solenoid directional control valve 1 is connect with oil return port T, two-bit triplet electricity
The input terminal of magnetic reversal valve 1 is electrically connected with the output end of external electric-control system, oil inlet port P, the filter 6 with bypass, hydraulic control
Reversal valve 5 and accumulator 2 constitute accumulation of energy oil circuit, oil inlet port P, the filter 6 with bypass, pilot operated directional control valve 5,2 and of accumulator
Two-bit triplet solenoid directional control valve 1 constitutes gear oil feeding line, and filter 6 that oil inlet port P, band bypass and subtracts pilot operated directional control valve 5
Pressure valve 3 constitutes lubricant passage way, and oil inlet port P, the filter 6 with bypass and safety valve 8 constitute off-load oil circuit, this agricultural machinery becomes automatically
Fast device control oil sources block design is rationally, of a tightly knit structure, and the dual function of electro-hydraulic control gear shift and forced feed lubrication may be implemented, effectively protect
The safety for protecting speed changer and operator, reduces the labor intensity and proficiency of driver, at the same especially suitable for it is unmanned,
The agricultural machinery speed change system of remote driving.
When in use: this transmission oil source block is mounted between quantitative oil pump and electrichydraulic control automatic transmission, pressure oil
Source enters oil sources block from oil inlet port P, flows to the filter 6 with by-passing valve through second one-way valve 7, filters out pressure well cuts
And oil cleanliness is improved, third check valve 9 is entered by the bottom of pilot operated directional control valve 5, and then fill to 2 fuel feeding of accumulator
Pressure, when oil pressure reaches setting value in accumulator 2, pilot operated directional control valve 5 is pushed into upper working position by the thrust that pressure oil generates, and is completed
Forced feed lubrication is carried out to speed changer to the filling liquid of accumulator 2, while under the action of pressure reducing valve 3.
When not needing gear shift, by the spring force of two-bit triplet solenoid directional control valve 1, return two-bit triplet solenoid directional control valve 1
To the next, in-line disconnection at this time, to 2 pressure maintaining of accumulator, noenergy loss；External transmission control valve group is come simultaneously
Gear control oil connected with fuel tank, speed changer is maintained at neutral position；When needing to carry out gear shift, electric-control system is to two-bit triplet
The electromagnetism end of solenoid directional control valve 1 issues shift signal, so that two-bit triplet solenoid directional control valve 1 is in the upper, gives external transmission
Gear control valve group fuel feeding, gear where being controlled through external transmission gear control valve group.
When vehicle variables pumping system fault-free, pressure oil-source gives system supply pressure oil, second one-way valve from oil inlet port P
7 is in the conductive state, the first check valve 4 not fuel feeding and prevent oil liquid flow through the first check valve 4；When due to hydraulic pump or its power
When failure normally cannot provide hydraulic oil to system, by meeting an urgent need, oil sources 10 provides a system to pressure oil, and the first check valve 4 is in
On state, second one-way valve 7 are in closed state, work normally at this point, ensuring to lubricate by emergency oil fuel feeding with gear.
The present invention has rational design, of a tightly knit structure, and the dual function of electro-hydraulic control gear shift and forced feed lubrication may be implemented, effectively protect
The safety for protecting speed changer and operator, reduces the labor intensity and proficiency of driver, at the same especially suitable for it is unmanned,
The agricultural machinery speed change system of remote driving, improves ease of use；The setting of pilot operated directional control valve 5 preferentially guarantees to gear fuel feeding oil
Road supply pressure oil, it is ensured that do not lose gear, guarantee that power transmission is not interrupted, improve ease of use.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of agricultural machinery automatic transmission controls oil sources block, it is characterised in that: including oil inlet port P, oil return port T, band bypass
Filter (6), pilot operated directional control valve (5), pressure reducing valve (3), accumulator (2) and two-bit triplet solenoid directional control valve (1), the oil inlet
Port P is connect by fluid pressure line with the oil inlet port of the filter (6) with bypass, the oil outlet of the filter (6) with bypass
It is connect with the oil inlet end of pilot operated directional control valve (5), the next outlet end of pilot operated directional control valve (5) and the oil inlet end of pressure reducing valve (3) connect
Connect, the upper outlet end of pilot operated directional control valve (5) is connect with the oil inlet end of accumulator (2), the oil outlet of accumulator (2) with two
The next oil inlet end connection of three-way solenoid valve (1), the next oil outlet and the oil return of two-bit triplet solenoid directional control valve (1)
Port T connection, the input terminal of the two-bit triplet solenoid directional control valve (1) are electrically connected with the output end of external electric-control system.
2. a kind of agricultural machinery automatic transmission according to claim 1 controls oil sources block, it is characterised in that: the oil inlet port
P is connect by second one-way valve (7) with the filter (6) with bypass.
3. a kind of agricultural machinery automatic transmission according to claim 1 controls oil sources block, it is characterised in that: the liquid controlled reversing
The upper outlet end of valve (5) is connect by third check valve (9) with the oil inlet end of accumulator (2).
4. a kind of agricultural machinery automatic transmission according to claim 1 controls oil sources block, it is characterised in that: the band bypass
The oil outlet of filter (6) is also connected with safety valve (8).
5. a kind of agricultural machinery automatic transmission according to claim 1 controls oil sources block, it is characterised in that: the band bypass
The oil inlet end of filter (6) is connect by the first check valve (4) with emergency oil sources (10).
6. a kind of agricultural machinery automatic transmission according to claim 1 controls oil sources block, it is characterised in that: the oil inlet port
P, filter (6), pilot operated directional control valve (5) and accumulator (2) with bypass constitute accumulation of energy oil circuit.
7. a kind of agricultural machinery automatic transmission according to claim 1 controls oil sources block, it is characterised in that: the oil inlet port
P, filter (6), pilot operated directional control valve (5), accumulator (2) and two-bit triplet solenoid directional control valve (1) with bypass constitute gear and supply
Oil circuit.
8. a kind of agricultural machinery automatic transmission according to claim 1 controls oil sources block, it is characterised in that: the oil inlet port
P, filter (6), pilot operated directional control valve (5) and pressure reducing valve (3) with bypass constitute lubricant passage way.
9. a kind of agricultural machinery automatic transmission according to claim 4 controls oil sources block, it is characterised in that: the oil inlet port
P, filter (6) and safety valve (8) with bypass constitute off-load oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907543.4A CN110513472A (en) | 2019-09-24 | 2019-09-24 | A kind of agricultural machinery automatic transmission control oil sources block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907543.4A CN110513472A (en) | 2019-09-24 | 2019-09-24 | A kind of agricultural machinery automatic transmission control oil sources block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110513472A true CN110513472A (en) | 2019-11-29 |
Family
ID=68632083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910907543.4A Pending CN110513472A (en) | 2019-09-24 | 2019-09-24 | A kind of agricultural machinery automatic transmission control oil sources block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513472A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696172A (en) * | 2020-11-03 | 2021-04-23 | 中国海洋石油集团有限公司 | Electro-hydraulic compound control underground decoding device and decoding method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758808A (en) * | 2012-07-26 | 2012-10-31 | 徐州徐工挖掘机械有限公司 | Pilot oil source control block of front high-pressure filter |
| CN204783913U (en) * | 2015-06-30 | 2015-11-18 | 徐工集团工程机械股份有限公司 | Underground scraper hydraulic pressure guide oil supply unit |
| CN204870985U (en) * | 2015-07-08 | 2015-12-16 | 安徽合力股份有限公司 | A integrated valve block that is used for container empty van to pile high quick -witted hydraulic braking system |
| CN105605011A (en) * | 2015-12-28 | 2016-05-25 | 徐州徐工挖掘机械有限公司 | Small hydraulic excavator pilot oil source valve group |
| CN107264498A (en) * | 2017-05-27 | 2017-10-20 | 徐工集团工程机械股份有限公司科技分公司 | It is a kind of that there is the electrichydraulic control hand brake system for exporting oil sources |
| CN207047941U (en) * | 2017-06-28 | 2018-02-27 | 徐州徐工挖掘机械有限公司 | A kind of small type hydraulic excavator pilot control valve group and small type hydraulic excavator |
| CN208474211U (en) * | 2018-05-11 | 2019-02-05 | 郑州宇通重工有限公司 | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system |
| CN210566181U (en) * | 2019-09-24 | 2020-05-19 | 洛阳智能农业装备研究院有限公司 | Control oil source block of automatic transmission of agricultural machine |
-
2019
- 2019-09-24 CN CN201910907543.4A patent/CN110513472A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758808A (en) * | 2012-07-26 | 2012-10-31 | 徐州徐工挖掘机械有限公司 | Pilot oil source control block of front high-pressure filter |
| CN204783913U (en) * | 2015-06-30 | 2015-11-18 | 徐工集团工程机械股份有限公司 | Underground scraper hydraulic pressure guide oil supply unit |
| CN204870985U (en) * | 2015-07-08 | 2015-12-16 | 安徽合力股份有限公司 | A integrated valve block that is used for container empty van to pile high quick -witted hydraulic braking system |
| CN105605011A (en) * | 2015-12-28 | 2016-05-25 | 徐州徐工挖掘机械有限公司 | Small hydraulic excavator pilot oil source valve group |
| CN107264498A (en) * | 2017-05-27 | 2017-10-20 | 徐工集团工程机械股份有限公司科技分公司 | It is a kind of that there is the electrichydraulic control hand brake system for exporting oil sources |
| CN207047941U (en) * | 2017-06-28 | 2018-02-27 | 徐州徐工挖掘机械有限公司 | A kind of small type hydraulic excavator pilot control valve group and small type hydraulic excavator |
| CN208474211U (en) * | 2018-05-11 | 2019-02-05 | 郑州宇通重工有限公司 | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system |
| CN210566181U (en) * | 2019-09-24 | 2020-05-19 | 洛阳智能农业装备研究院有限公司 | Control oil source block of automatic transmission of agricultural machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696172A (en) * | 2020-11-03 | 2021-04-23 | 中国海洋石油集团有限公司 | Electro-hydraulic compound control underground decoding device and decoding method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207621329U (en) | A kind of hydraulic control system of double-clutch speed changer | |
| CN102673639B (en) | Hydraulic steering control system and crane with system | |
| CN104019066B (en) | A kind of ocean platform lifting mechanism hydraulic control system | |
| CN201309504Y (en) | System for lifting and steering a rigid mine self-dumping truck | |
| CN102062204B (en) | Clutch hydraulic control device of double-clutch automatic transmission | |
| CN102155447A (en) | Rotating hydraulic system of crane and rotating buffer valve thereof | |
| CN104879336A (en) | Valve back compensation type load-sensitive multitandem valve with bidirectional confluence function | |
| CN103542019A (en) | Clutch hydraulic control device of double-clutch automatic transmission | |
| CN105626844A (en) | Hydraulic control system of wet type double-clutch speed changing box | |
| CN103008362B (en) | Hydraulic press-down parallel servo control method and loop for plate and strip rolling mill | |
| CN103591062B (en) | Loading machine quantitative pump pressure compensates and automatic deloading hydraulic system | |
| CN110513472A (en) | A kind of agricultural machinery automatic transmission control oil sources block | |
| CN202023782U (en) | Rotary hydraulic system of crane and rotary cushion valve of rotary hydraulic system | |
| CN101367347B (en) | Lifting and steering control method and system of self-discharging vehicle for rigid mining | |
| CN105114616A (en) | Gear shifting electrohydraulic device | |
| CN210566181U (en) | Control oil source block of automatic transmission of agricultural machine | |
| CN102992195A (en) | Counterweight hanging control device, hydraulic control system and mobile crane | |
| CN203485987U (en) | Steering control valve and engineering vehicle steering system | |
| CN203516244U (en) | Fast feed and working feed circuit | |
| CN108179781A (en) | Loader hydraulic control system | |
| CN202381429U (en) | Forward jumping prevention control valve of crane telescopic oil cylinder and crane telescopic system | |
| CN103511379B (en) | A kind of crane, hydraulic system and switching valve | |
| CN203272767U (en) | Multifunctional electro-hydraulic control operating valve | |
| CN202967905U (en) | Counterweight mount control device, liquid control system and mobile crane | |
| CN103206423B (en) | A kind of hydraulic system and engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |