CN108561356A - A kind of used with tractor commutation hydraulic device - Google Patents
A kind of used with tractor commutation hydraulic device Download PDFInfo
- Publication number
- CN108561356A CN108561356A CN201711484679.6A CN201711484679A CN108561356A CN 108561356 A CN108561356 A CN 108561356A CN 201711484679 A CN201711484679 A CN 201711484679A CN 108561356 A CN108561356 A CN 108561356A
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- China
- Prior art keywords
- valve
- pressure
- energy storage
- inching
- oil
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- 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
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A kind of used with tractor commutation hydraulic device, mainly by reversal valve, inching valve, pressure regulator valve, proportional pressure-reducing valve, energy storage valve group at, oil circuit inlet communication on valve body is divided into two-way oil circuit by pressure regulator valve and after setting up operating oil pressure in pressure regulator valve, is connected to the energy storage valve all the way；Another way is connected to proportional pressure-reducing valve by inching valve for for switching oil circuit, oil stream being entered to the reversal valve of clutch；Pressure regulator valve mainly sets up the operating oil pressure of tractor reverse clutch, the oil cleanliness of line filter principal security hydraulic system, the setting of energy storage valve mainly mitigates impact and eliminates pulsation, the setting of proportional pressure-reducing valve and inching valve realizes that the forward demand of low speed of the reasonable boosting characteristic and tractor of the operating oil pressure of reverse clutch, the setting of reversal valve are to realize to advance to fall back the switching of oil circuit；The features such as it has drive path simple, and installation, maintenance and operation are convenient, and work efficiency is high, and manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of used with tractor commutation hydraulic devices, belong to used with tractor Powershift transmission hydraulic pressure
Control technology field.
Background technology
The gear box of tractor that country's tractor Corporation R ＆ D goes out at present is mostly that tooth gearbox or synchronizer are shifted gears, such
Output of products torque and rotation speed change are bigger, first stepping on clutch are needed when shift, and more demanding to shift opportunity, when shift
Machine assurance is not allowed to easily cause larger impact or flame-out, increases so as to cause labor intensity, shift time extends, operating efficiency
It is low, the defects of power performance and the economy performance is difficult to ensure.Existing dynamic power shift gear box is mostly imported product or introduction state
Outer technology, this external product structure is extremely complex, is all made of monolithic construction, and repairs extremely inconvenience, and cost is higher, not
Suitable for domestic market, and due to the country in automatically controlled, hydraulic pressure and mechanically there is more problem, it is domestic on copying such product
Also there is the problems such as many manufactures, manufacturing process, reliability and vehicle match.Present domestic market starts to manufacture experimently double clutch
Add the Powershift transmission of synchronizer shift, for the combination off the row of effectively control double clutch, develops this suitable operating mode
Commutation hydraulic device, to break away from the difficult situation by external import.
Invention content
It is an object of the invention to overcome the shortcomings of the prior art, and it is simple to provide a kind of drive path, installation, dimension
It protects and easy to operate, work efficiency is high, the low used with tractor commutation hydraulic device of manufacturing cost.
The purpose of the present invention is by following technical solution to complete, and a kind of used with tractor commutates hydraulic device, mainly
By reversal valve, inching valve, pressure regulator valve, proportional pressure-reducing valve, energy storage valve group at the oil circuit inlet communication on valve body is in pressure regulator valve, warp
It crosses pressure regulator valve and is divided into two-way oil circuit after setting up operating oil pressure, be connected to the energy storage valve all the way；Another way by inching valve and
Proportional pressure-reducing valve is connected to for for switching oil circuit, oil stream being entered to the reversal valve of clutch.
As preferred：The pressure regulator valve is by first segment stem bar, pressure regulator valve valve pocket, the first pressure regulation valve spring, the second pressure regulation
Valve spring, pressure regulation valve core, pressure regulation valve spring retainer composition；The energy storage valve is by energy storage valve plug screw, energy storage valve core, energy storage valve
Spring and flow nipple composition；Oil circuit import on the valve body is connected to via the second line filter and by first segment stem bar
In pressure regulator valve；It is described through the first line filter and to pass through the second flow nipple connection energy storage valve all the way.
As preferred：The proportional pressure-reducing valve and inching valve is by inching valve valve rod, oil sealing, inching valve valve pocket, first micro-
Dynamic valve spring, the second fine motion valve spring, fine motion valve spring retainer, proportional pressure-reducing valve spool, ratio valve spring, proportional pressure-reducing valve spring
Seat, proportional pressure-reducing valve valve pocket composition, the inching valve valve rod, which is configured with, can tip into or out clutch and push and pull inching valve valve
The pedal of bar adjusts oil pressure when clutch work.
The reversal valve is made of commutation valve rod, retaining spring and steel ball, by push-and-pull commutation valve rod, carries out tractor
Advance, the switching of neutral gear and retrogressing gear.
Present invention employs reversal valve, inching valve, line filter, pressure regulator valve, proportional pressure-reducing valve, line filter, storages
Energy threshold Integrated design, compact-sized, the setting of line filter makes the reliability of commutation hydraulic device greatly promote again, fine motion
The setting of valve and proportional pressure-reducing valve allows tractor with extremely low speed by road surface, and the setting of energy storage valve then mitigates clutch
Impact when device is shifted gears and elimination hydro pulse.
The present invention has drive path simple, and installation, maintenance and operation are convenient, and work efficiency is high, and manufacturing cost is low to wait spies
Point.
Description of the drawings
Fig. 1 is structure of the invention schematic diagram.
Fig. 2 is internal structure schematic diagram of the present invention.
Fig. 3 is external structure schematic diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the present invention will be described in detail：Shown in Fig. 1-3, a kind of used with tractor of the present invention
Commutate hydraulic device, is mainly made of reversal valve 1, inching valve 2, pressure regulator valve 4, proportional pressure-reducing valve 5, energy storage valve 8, the oil on valve body
Road inlet communication is in pressure regulator valve（4）, two-way oil circuit is divided by pressure regulator valve and after setting up operating oil pressure, all the way through the first pipe filter
Clear device 3 is connected to the energy storage valve 8；Another way is connected to proportional pressure-reducing valve by inching valve 2 for switching oil circuit, entering oil stream
The reversal valve 1 of clutch.
As shown in the figure, the pressure regulator valve 4 is by first segment stem bar 1200, pressure regulator valve valve pocket 1300, the first pressure regulation valve spring
1400, the second pressure regulation valve spring 1500, pressure regulation valve core 1700, pressure regulation valve spring retainer 1800 form；Set up clutch working oil
Pressure, and when clutch knot is arranged when providing commutation preferably boost characteristic.
The energy storage valve 8 is by energy storage valve plug screw 2200, energy storage valve core 2000, energy storage valve spring 2100 and flow nipple
2300 compositions, impact when being shifted gears with mitigating and elimination hydro pulse.
Oil circuit import on the valve body via the second line filter 7 and is communicated in tune by first segment stem bar 1200
Pressure valve 4；Described is connected to the energy storage valve 8 through the first line filter 3 and by the second flow nipple 2300 all the way.
The line filter and line filter, it is ensured that fluid cleaning when valve is run is reduced in the valve course of work
Clamping stagnation.
Proportional pressure-reducing valve 5 and inching valve 2 of the present invention are by inching valve valve rod 450, oil sealing 460, inching valve valve pocket
470, the first fine motion valve spring 400, the second fine motion valve spring 500, fine motion valve spring retainer 600, proportional pressure-reducing valve spool（700）、
Ratio valve spring 800, proportional pressure-reducing valve spring base 900, proportional pressure-reducing valve valve pocket 950 form, and the inching valve valve rod is mating
There is the pedal that can be tipped into or out clutch and push and pull inching valve valve rod, adjusts oil pressure when clutch work.
The reversal valve 1 is made of commutation valve rod 100, retaining spring 200 and steel ball 300, by pushing and pulling the valve rod that commutates,
Carry out tractor advance, neutral gear and the switching for retreating gear.
The present invention reduces oil pressure when clutch work by tipping into or out clutch pedal, push-and-pull inching valve valve rod,
Realize the skidding of clutch, it is ensured that can be run with extremely low speed with tractor.
Claims (4)
- The hydraulic device 1. a kind of used with tractor commutates, mainly by reversal valve（1）, inching valve（2）, the first line filter（3）, adjust Pressure valve（4）, proportional pressure-reducing valve（5）, the second line filter（7）, energy storage valve（8）Composition, it is characterised in that the oil circuit on valve body Import is via the second line filter（7）It is communicated in pressure regulator valve（4）, two road binders are divided by pressure regulator valve and after setting up operating oil pressure Road, all the way through the first line filter（3）The connection energy storage valve（8）；Another way passes through inching valve（2）And proportional pressure-reducing valve Connection is for switching oil circuit, oil stream being entered to the reversal valve of clutch（1）.
- The hydraulic device 2. used with tractor according to claim 1 commutates, it is characterised in that the pressure regulator valve（4) by first Flow nipple（1200）, pressure regulator valve valve pocket（1300）, the first pressure regulation valve spring（1400）, the second pressure regulation valve spring（1500）, pressure regulation Valve core（1700）, pressure regulation valve spring retainer（1800）Composition；The energy storage valve（8）By energy storage valve plug screw（2200）, energy storage valve Spool（2000）, energy storage valve spring（2100）And flow nipple（2300）Composition；Oil circuit import on the valve body is via the second pipe Road filter（7）And pass through first segment stem bar（1200）It is communicated in pressure regulator valve（4）；It is described all the way through the first line filter （3）And pass through the second flow nipple（2300）The connection energy storage valve（8）.
- The hydraulic device 3. used with tractor according to claim 1 commutates, it is characterised in that the proportional pressure-reducing valve（5）With Inching valve（2）By inching valve valve rod（450）, oil sealing（460）, inching valve valve pocket（470）, the first fine motion valve spring（400）, second Fine motion valve spring（500）, fine motion valve spring retainer（600）, proportional pressure-reducing valve spool（700）, ratio valve spring（800）, ratio subtracts Pressure valve spring base（900）, proportional pressure-reducing valve valve pocket（950）Composition, the inching valve valve rod be configured with can tip into or out from Clutch and the pedal for pushing and pulling inching valve valve rod adjust oil pressure when clutch work.
- The hydraulic device 4. used with tractor according to claim 1 commutates, it is characterised in that the reversal valve（1）By commutating Valve rod（100）, retaining spring（And steel ball 200)（300）Composition is commutated valve rod by push-and-pull, carry out tractor advance, neutral gear and Retreat the switching of gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484679.6A CN108561356A (en) | 2017-12-29 | 2017-12-29 | A kind of used with tractor commutation hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484679.6A CN108561356A (en) | 2017-12-29 | 2017-12-29 | A kind of used with tractor commutation hydraulic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108561356A true CN108561356A (en) | 2018-09-21 |
Family
ID=63529550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711484679.6A Pending CN108561356A (en) | 2017-12-29 | 2017-12-29 | A kind of used with tractor commutation hydraulic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561356A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253747A (en) * | 2020-10-29 | 2021-01-22 | 第一拖拉机股份有限公司 | Electric hydraulic control system for tractor |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000158958A (en) * | 1998-11-20 | 2000-06-13 | Yanmar Diesel Engine Co Ltd | Agricultural tractor |
| JP2002227976A (en) * | 2001-01-31 | 2002-08-14 | Kubota Corp | Forward and reverse gear change structure of tractor |
| CN202251195U (en) * | 2011-10-17 | 2012-05-30 | 合肥力威汽车油泵有限公司 | Single-point compensation electromagnetic hydraulic combined control valve |
| CN103277360A (en) * | 2013-06-21 | 2013-09-04 | 合肥力威汽车油泵有限公司 | Electromagnetic hydraulic combined control valve |
| CN204164314U (en) * | 2014-10-17 | 2015-02-18 | 绍兴金道齿轮箱有限公司 | Hydraudynamic drive bridge case integrated gearbox |
| CN204175829U (en) * | 2014-09-18 | 2015-02-25 | 杭州前进齿轮箱集团股份有限公司 | A kind of clutch application valve with fine motion function |
| CN204186921U (en) * | 2014-10-17 | 2015-03-04 | 绍兴金道齿轮箱有限公司 | A kind of hydraulic transmission gearbox |
| CN104564878A (en) * | 2014-12-19 | 2015-04-29 | 杭州前进齿轮箱集团股份有限公司 | Manual-control inching reversal valve |
| CN204387298U (en) * | 2014-12-19 | 2015-06-10 | 浙江中柴机器有限公司 | Vehicle gear box oil-way system |
| CN106382263A (en) * | 2016-10-09 | 2017-02-08 | 合肥协力液压科技有限公司 | Automatic speed changing and inching integrated electro-hydraulic control valve |
| CN208565106U (en) * | 2017-12-29 | 2019-03-01 | 杭州前进齿轮箱集团股份有限公司 | A kind of used with tractor commutation hydraulic device |
-
2017
- 2017-12-29 CN CN201711484679.6A patent/CN108561356A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000158958A (en) * | 1998-11-20 | 2000-06-13 | Yanmar Diesel Engine Co Ltd | Agricultural tractor |
| JP2002227976A (en) * | 2001-01-31 | 2002-08-14 | Kubota Corp | Forward and reverse gear change structure of tractor |
| CN202251195U (en) * | 2011-10-17 | 2012-05-30 | 合肥力威汽车油泵有限公司 | Single-point compensation electromagnetic hydraulic combined control valve |
| CN103277360A (en) * | 2013-06-21 | 2013-09-04 | 合肥力威汽车油泵有限公司 | Electromagnetic hydraulic combined control valve |
| CN204175829U (en) * | 2014-09-18 | 2015-02-25 | 杭州前进齿轮箱集团股份有限公司 | A kind of clutch application valve with fine motion function |
| CN204164314U (en) * | 2014-10-17 | 2015-02-18 | 绍兴金道齿轮箱有限公司 | Hydraudynamic drive bridge case integrated gearbox |
| CN204186921U (en) * | 2014-10-17 | 2015-03-04 | 绍兴金道齿轮箱有限公司 | A kind of hydraulic transmission gearbox |
| CN104564878A (en) * | 2014-12-19 | 2015-04-29 | 杭州前进齿轮箱集团股份有限公司 | Manual-control inching reversal valve |
| CN204387298U (en) * | 2014-12-19 | 2015-06-10 | 浙江中柴机器有限公司 | Vehicle gear box oil-way system |
| CN106382263A (en) * | 2016-10-09 | 2017-02-08 | 合肥协力液压科技有限公司 | Automatic speed changing and inching integrated electro-hydraulic control valve |
| CN208565106U (en) * | 2017-12-29 | 2019-03-01 | 杭州前进齿轮箱集团股份有限公司 | A kind of used with tractor commutation hydraulic device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253747A (en) * | 2020-10-29 | 2021-01-22 | 第一拖拉机股份有限公司 | Electric hydraulic control system for tractor |
| CN112253747B (en) * | 2020-10-29 | 2024-05-28 | 第一拖拉机股份有限公司 | Electrohydraulic control system for tractor |
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