CN106151141B - A kind of tractor distributor - Google Patents
A kind of tractor distributor Download PDFInfo
- Publication number
- CN106151141B CN106151141B CN201610530875.1A CN201610530875A CN106151141B CN 106151141 B CN106151141 B CN 106151141B CN 201610530875 A CN201610530875 A CN 201610530875A CN 106151141 B CN106151141 B CN 106151141B
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- China
- Prior art keywords
- valve
- valve assembly
- oil return
- distributor
- spring
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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
- F15B13/022—Flow-dividers; Priority valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
A kind of tractor distributor, including：Distributor body, main control valve assembly, oil return guide valve assembly, unidirectional valve assembly, oil cylinder safety valve complement, decrease speed regulating valve assembly, oil return valve assembly, oil return valve seat, decline valve assembly, locking catch, drive end bearing bracket；By main control valve assembly, oil return guide valve assembly, unidirectional valve assembly, oil cylinder safety valve complement, decrease speed regulating valve assembly, oil return valve assembly, oil return valve seat, decline valve assembly, in the corresponding aperture for inserting distributor body respectively, drive end bearing bracket is screwed onto in the corresponding screwed hole of distributor body again, then will decline valve assembly with locking catch locks.The profile of distributor is cylindrical plug in construction, each control valve is on shell space into circle distribution, distributor body oil duct is ring-shaped groove, all with machining, no cast inside oil duct, it is readily cleaned, manufacturing cost is low, compact, compact conformation, parts easy installation and removal, is adjusted and easy to maintenance.
Description
Technical field
The invention belongs to tractor field, it is related to a kind of tractor distributor.
Background technology
With the fast lifting of Global Agriculture Mechanization Level, domestic and international Farm Machinery Market precisely will to the quality of agronomy operation
Seek more and more higher.Tractor plays an important role as the main product of agricultural machinery in mechanization of agriculture progress.Agriculture
The intensive cultivation of field operation, it is especially desirable to which Characteristics of Tractor Hydraulic Suspension System lifting control element has better performance.Hydraulic suspension
The essential core control element for hanging lifting system is exactly distributor, is typically mounted at the inner chamber or external in lifter of lifter
Right side, the superior functional reliability for determining hydraulic system of its performance.
At present, the distributor used in the hydraulic suspension lifting system of the tractor enterprise production of numerous domestic, its performance product
Matter lags far behind world level, is primarily present leakage, card valve, exceeded quiet sedimentation, pressure transient, maintenance inconvenience etc. and asks
Topic, causes tractor hydraulic system fault rate to remain high, while Related product is also at the update stage.Therefore, having must
Develop that a kind of superior performance, fault rate be low, easy to maintenance, technical indicator is suitable with world level, domestic and international market can be met
The tractor distributor of demand, to lift the technical advantage that tractor hydraulic hangs lifting system, and promotes domestic dilatory energetically
The fast development of machine product technology.
The content of the invention
It is an object of the invention to provide a kind of compact conformation, superior performance, fault rate low, easy to maintenance tractor point
Orchestration.
The present invention is achieved through the following technical solutions above-mentioned purpose：A kind of tractor distributor, including：Distributor body,
Main control valve assembly, oil return guide valve assembly, unidirectional valve assembly, oil cylinder safety valve complement, decrease speed regulating valve assembly, oil return
Valve assembly, oil return valve seat, decline valve assembly, locking catch, drive end bearing bracket；By main control valve assembly, oil return guide valve assembly, unidirectional
Valve assembly, oil cylinder safety valve complement, decrease speed regulating valve assembly, oil return valve assembly, oil return valve seat and corresponding O-ring seal,
Decline valve assembly, in the corresponding aperture that distributor body is inserted respectively, then that drive end bearing bracket is screwed onto into distributor body is corresponding
In screwed hole, it then will decline valve assembly with locking catch and lock.
Distributor body includes：Oil duct in irregular mounting surface and cylindrical mating surface, cylindrical mating surface is three
Road ring-shaped groove, while having axial hole inside also three seals groove, cylindrical housings, for installing various valve elements and valve
Set；Mounting surface fits together with lifter housing, blending bolt connection.
Main control valve assembly includes：Primary control spool, main control valve banking pin and master control valve spring；By main control valve spring
It is sleeved on primary control spool, then by the corresponding aperture of the two insertion distributor body, then main control valve banking pin is screwed into point
In the screwed hole of orchestration housing.
Oil return guide's valve assembly includes：Valve pocket, spring and valve element；Spring and valve element are sequentially placed into valve pocket, then in valve
Put and load onto corresponding O-ring seal, oil return guide's valve assembly is screwed into the corresponding aperture of distributor body.
Unidirectional valve assembly includes：Steel ball, one-way valve spring and one-way valve sleeve；One-way valve spring and steel ball are put into successively
In one-way valve sleeve, while loading onto corresponding O-ring seal on one-way valve set, unidirectional valve assembly is inserted into distributor body
Corresponding aperture in.
Oil cylinder safety valve complement includes：Locking nut, adjustment plug screw, spring, catch and steel ball；Successively by steel ball, catch
It is put into spring in distributor body hole, then adjustment plug screw is screwed into the screwed hole of distributor body, then uses locking nut
Locking.
Decrease speed regulating valve assembly includes：Valve rod, combined seal ring, back-up ring；Valve rod is screwed into distributor body correspondence
Screwed hole in, back-up ring and combined seal ring are then loaded onto on valve rod successively.
Oil return valve assembly includes：Oil return valve seat, spring and oil return valve core；Spring is initially charged with to the endoporus of oil return valve core
In, then by the corresponding aperture of the two insertion distributor body, then oil return valve seat is screwed into the screwed hole of distributor body, together
When load corresponding O-ring seal.
Declining valve assembly includes：Decline valve element, spring and decline valve pocket；Spring, decline valve element are loaded into lowering valve successively
In the endoporus of set, while loading onto corresponding O-ring seal on lowering valve set.
The present invention can reach following good effect after using above-mentioned technical proposal：After the present invention, tractor can be made
Control to hydraulic lift system is more accurate, improves the quality of agronomy operation, the superior of its performance, fault rate are low and safeguard
Convenience the features such as, meet the use requirement of wheeled tractor, improve the overall performance of wheeled tractor, while to the country
The development of tractor lifting mechanism product serves positive impetus.
Brief description of the drawings
Fig. 1 arranges schematic diagram for a kind of structure of tractor distributor of the invention；
Fig. 2 is Fig. 1 A-A diagrammatic cross-sections；
Fig. 3 is Fig. 1 B-B diagrammatic cross-sections；
Fig. 4 is a kind of operation principle schematic diagram of tractor distributor of the invention；
Fig. 5 is a kind of tractor distributor main control valve assembly structure schematic diagram of the invention；
Fig. 6 is a kind of tractor distributor oil return pilot valve assembly structure schematic diagram of the invention；
Fig. 7 is a kind of tractor distributor check valve assembly structure schematic diagram of the invention；
Fig. 8 is a kind of tractor distributor oil cylinder safety valve complement structural representation of the invention；
Fig. 9 is a kind of tractor distributor decrease speed regulating valve assembly structural representation of the invention；
Figure 10 is a kind of tractor distributor oil return valve assembly structure schematic diagram of the invention；
Figure 11 is a kind of tractor distributor lowering valve assembly structure schematic diagram of the invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.As shown in Fig. 1 ~ 11, a kind of tractor distributor, main bag
Include：Distributor body 1, main control valve assembly 2, oil return guide valve assembly 3, unidirectional valve assembly 4, oil cylinder safety valve complement 5, decline
Speed-regulating valve assembly 6, oil return valve assembly 7, oil return valve seat 8, decline valve assembly 9, locking catch 10, drive end bearing bracket 11 and corresponding
O-ring seal etc..
Respectively by main control valve assembly 2, oil return guide valve assembly 3, unidirectional valve assembly 4, oil cylinder safety valve complement 5, decline
Speed-regulating valve assembly 6, oil return valve assembly 7, oil return valve seat 8 and corresponding O-ring seal, decline valve assembly 9, insert respectively into point
In the corresponding aperture of orchestration housing, then drive end bearing bracket 11 is screwed onto in the corresponding screwed hole of distributor body 1, then with locking gear
Piece 10 will decline valve assembly locking, complete the assembling of dispenser assembly.
Distributor body 1 includes：Oil duct on irregular mounting surface F and cylindrical mating surface E, cylindrical mating surface E
It is three road ring-shaped groove G：Respectively oil cylinder trench, oil pump groove and back oil road groove；While also three seals groove H：Point
It is other that oil cylinder trench, oil pump groove and back oil road groove are sealed；There are multiple axial holes inside cylindrical housings, for installing
Various valve elements and valve pocket.Mounting surface F fits together with lifter housing, is connected with.
Main control valve assembly 2 includes：Primary control spool 2.1, main control valve banking pin 2.2 and master control valve spring 2.3.Will be main
Control valve spring 2.3 is enclosed on primary control spool 2.1, then by the corresponding aperture of the two insertion distributor body 1, then by master control
Valve banking pin 2.2 is screwed into the screwed hole of distributor body 1, is limited the position of primary control spool 2.1, is completed the dress of the assembly 2
Match somebody with somebody.
Oil return guide valve assembly 3 includes：Valve pocket 3.1, spring 3.2 and valve element 3.3.Spring 3.2 and valve element 3.3 are put successively
Enter in valve pocket 3.1, then corresponding O-ring is loaded onto on valve pocket 3.1, oil return guide valve assembly 3 is screwed into pair of distributor body 1
Answer in hole.The open and close of oil return guide valve assembly 3 are controlled by main control valve assembly 2.
Unidirectional valve assembly 4 includes：Steel ball 4.1, one-way valve spring 4.2 and one-way valve sleeve 4.3.Successively by one-way valve spring
4.2 and steel ball 4.1 be put into one-way valve sleeve 4.3, while corresponding O-ring is loaded onto on one-way valve sleeve 4.3, by check valve
In the corresponding aperture of the insertion distributor body 1 of assembly 4.
Oil cylinder safety valve complement 5 includes：Locking nut 5.1, adjustment plug screw 5.2, spring 5.3, catch 5.4 and steel ball 5.5.
Steel ball 5.5, catch 5.4 and spring 5.3 are put into the hole of distributor body 1 successively, then adjustment plug screw 5.2 is screwed into distributor shell
In the screwed hole of body 1, then locked with locking nut 5.1.It is the maximum pressure for limiting oil cylinder that it, which is acted on,.
Decrease speed regulating valve assembly 6 includes：Valve rod 6.1, combined seal ring 6.2, back-up ring 6.3.Valve rod 6.1 is screwed into point
In the corresponding screwed hole of orchestration housing 1, back-up ring 6.3 and combined seal ring 6.2 are then loaded onto on valve rod 6.1 successively.The assembly
Effect is the decrease speed for adjusting tractor equipment.
Oil return valve assembly 7 includes：Oil return valve seat 7.1, spring 7.2 and oil return valve core 7.3.Spring 7.2 is initially charged with back
In the endoporus of fuel tap valve element 7.3, then by the corresponding aperture of the two insertion distributor body 1, then oil return valve seat 7.1 is screwed into point
In the screwed hole of orchestration housing 1, while loading corresponding O-ring.The open and close of oil return valve assembly 7 are by oil return pilot valve
Assembly 3 is controlled.
Declining valve assembly 9 includes：Decline valve element 9.1, spring 9.2 and decline valve pocket 9.3.Successively by spring 9.2, lowering valve
Core 9.1 is fitted into the endoporus for declining valve pocket 9.3, while loading onto corresponding O-ring on valve pocket 9.3 is declined.
It is in place of this main innovation of the invention with other distributors：The profile of distributor is cylindrical plug-in type knot
Structure, each control valve is into circle distribution on shell space, and distributor body oil duct is ring-shaped groove, all with machining, without interior
Portion casts oil duct, it is easy to clean, and housing molding process and processing technology are simple, and manufacturing cost is low, compact, compact conformation,
Parts easy installation and removal, adjustment and easy to maintenance, contained integrated valve block structure novelty, are combined ingenious.
The operation principle of distributor：There are two innovative points, 1）The open and close of oil return guide's valve assembly are first by master control
Valve control processed, subsequent oil return guide valve assembly controls the opening and closing of oil return valve assembly again.2）During neutral position, oil pump comes
Oily P mouthfuls by T mouthfuls of direct oil returns of oil return valve, during down position, oil cylinder oil return is only lifted by L mouthfuls of direct oil returns of lowering valve
During position, oil pump is oily just to enter main control valve, opens check valve, enters oil cylinder by A mouthfuls, so as to reduce main control valve card
The probability of valve.And domestic assignment principle is at present：Only one of which oil return valve assembly, and neutral, down position fluid
All by main control valve and oil return valve, fluid causes main control valve and oil return valve clamping stagnation also by main control valve during raised position
Probability than larger.
Contained oil return system structure innovation in distributor, it includes oil return guide valve assembly and oil return valve assembly, on a small quantity
Pressure oil first pass around oil return guide's valve assembly, by oil return guide valve assembly control oil return valve assembly open and close, should
Structure avoids direct impact of the fluid to oil return valve assembly, and oil return route is short, reduces the probability of valve element clamping stagnation.
Contained lowering valve system architecture innovation in distributor, wherein decline valve assembly is arranged on same with main control valve assembly
On one axis, main control valve valve element mechanical control declines the position of valve core, it is possible to decrease the clamping stagnation probability of lowering valve, and under
The front end face that valve assembly is arranged on distributor body drops, it is easy to dismantle, clean and maintenance is convenient.
Claims (9)
1. a kind of tractor distributor, including：Distributor body（1）, main control valve assembly（2）, oil return guide's valve assembly（3）、
Unidirectional valve assembly（4）, oil cylinder safety valve complement（5）, decrease speed regulating valve assembly（6）, oil return valve assembly（7）, oil return valve seat
（8）, decline valve assembly（9）, locking catch（10）, drive end bearing bracket（11）；It is characterized in that：By main control valve assembly（2）, oil return it is first
Pilot valve assembly（3）, unidirectional valve assembly（4）, oil cylinder safety valve complement（5）, decrease speed regulating valve assembly（6）, oil return valve assembly
（7）, oil return valve seat（8）And corresponding O-ring seal, decline valve assembly（9）, insert respectively into distributor body（1）Corresponding aperture
It is interior, then by drive end bearing bracket（11）It is screwed onto distributor body（1）In corresponding screwed hole, then with locking catch（10）It will decline
Valve assembly（9）Locking.
2. a kind of tractor distributor according to claim 1, it is characterised in that：Distributor body（1）Including：Irregularly
Mounting surface（F）With cylindrical mating surface（E）, cylindrical mating surface（E）On oil duct be three road ring-shaped grooves（G）, also simultaneously
There is three seals groove（H）, have axial hole, mounting surface inside cylindrical housings（F）Fit together, be used in combination with lifter housing
Bolt connection.
3. a kind of tractor distributor according to claim 1, it is characterised in that：Main control valve assembly（2）Including：Master control
Valve element processed（2.1）, main control valve banking pin（2.2）With master control valve spring（2.3）；By main control valve spring（2.3）It is sleeved on master
Control valve element（2.1）On, then by the two insertion distributor body（1）Corresponding aperture in, then by main control valve banking pin（2.2）Twist
Enter distributor body（1）Screwed hole in.
4. a kind of tractor distributor according to claim 1, it is characterised in that：Oil return guide's valve assembly（3）Including：Valve
Set（3.1）, spring（3.2）And valve element（3.3）；By spring（3.2）And valve element（3.3）It is sequentially placed into valve pocket（3.1）It is interior, then in valve
Set（3.1）On load onto corresponding O-ring seal, by oil return guide's valve assembly（3）It is screwed into distributor body（1）Corresponding aperture in.
5. a kind of tractor distributor according to claim 1, it is characterised in that：Unidirectional valve assembly（4）Including：Steel ball
（4.1）, one-way valve spring（4.2）And one-way valve sleeve（4.3）；Successively by one-way valve spring（4.2）And steel ball（4.1）It is put into list
To valve valve pocket（4.3）It is interior, while in one-way valve sleeve（4.3）On load onto corresponding O-ring seal, by unidirectional valve assembly（4）Insert
Enter distributor body（1）Corresponding aperture in.
6. a kind of tractor distributor according to claim 1, it is characterised in that：Oil cylinder safety valve complement（5）Including：Lock
Tight nut（5.1）, adjustment plug screw（5.2）, spring（5.3）, catch（5.4）And steel ball（5.5）；Successively by steel ball（5.5）, catch
（5.4）And spring（5.3）It is put into distributor body（1）In hole, then by adjustment plug screw（5.2）It is screwed into distributor body（1）Spiral shell
In pit, locking nut is then used（5.1）Locking.
7. a kind of tractor distributor according to claim 1, it is characterised in that：Decrease speed regulating valve assembly（6）Bag
Include：Valve rod（6.1）, combined seal ring（6.2）, back-up ring（6.3）；By valve rod（6.1）It is screwed into distributor body（1）Corresponding screw thread
In hole, then successively in valve rod（6.1）On load onto back-up ring（6.3）And combined seal ring（6.2）.
8. a kind of tractor distributor according to claim 1, it is characterised in that：Oil return valve assembly（7）Including：Oil return valve
Seat（7.1）, spring（7.2）With oil return valve core（7.3）；By spring（7.2）It is initially charged with oil return valve core（7.3）Endoporus in,
Again by the two insertion distributor body（1）Corresponding aperture in, then by oil return valve seat（7.1）It is screwed into distributor body（1）Spiral shell
In pit, while loading corresponding O-ring seal.
9. a kind of tractor distributor according to claim 1, it is characterised in that：Decline valve assembly（9）Including：Lowering valve
Core（9.1）, spring（9.2）With decline valve pocket（9.3）；Successively by spring（9.2）, decline valve element（9.1）Load and decline valve pocket
（9.3）Endoporus in, while decline valve pocket（9.3）On load onto corresponding O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530875.1A CN106151141B (en) | 2016-07-07 | 2016-07-07 | A kind of tractor distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530875.1A CN106151141B (en) | 2016-07-07 | 2016-07-07 | A kind of tractor distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151141A CN106151141A (en) | 2016-11-23 |
| CN106151141B true CN106151141B (en) | 2017-10-17 |
Family
ID=58061449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610530875.1A Active CN106151141B (en) | 2016-07-07 | 2016-07-07 | A kind of tractor distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151141B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916274B (en) * | 2022-06-07 | 2023-06-27 | 山东弘宇农机股份有限公司 | Tractor position adjusting lifter capable of adjusting descending speed |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1706416A1 (en) * | 1988-11-14 | 1992-01-23 | Литовская сельскохозяйственная академия | Hydraulic control system of agricultural implements |
| US6105613A (en) * | 1997-05-13 | 2000-08-22 | Mita Oleodinamica S.P.A. | Distributor for a hydraulic hoist which is controllable with regard to position and applied force, for tractors and agricultural machines |
| CN2715490Y (en) * | 2004-07-16 | 2005-08-10 | 吴锡璋 | Pressure distributor of wheel tractor |
| CN201100276Y (en) * | 2007-02-05 | 2008-08-13 | 于晓卿 | A distributor |
| CN202048037U (en) * | 2011-03-18 | 2011-11-23 | 常州联发凯迪机械有限公司 | Hydraulic distributor of wheeled tractor |
| CN102979774A (en) * | 2012-05-24 | 2013-03-20 | 山东弘宇机械有限公司 | Control valve block special for tractor hydraulic suspension |
| CN205779981U (en) * | 2016-07-07 | 2016-12-07 | 第一拖拉机股份有限公司 | A kind of tractor allotter |
-
2016
- 2016-07-07 CN CN201610530875.1A patent/CN106151141B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1706416A1 (en) * | 1988-11-14 | 1992-01-23 | Литовская сельскохозяйственная академия | Hydraulic control system of agricultural implements |
| US6105613A (en) * | 1997-05-13 | 2000-08-22 | Mita Oleodinamica S.P.A. | Distributor for a hydraulic hoist which is controllable with regard to position and applied force, for tractors and agricultural machines |
| CN2715490Y (en) * | 2004-07-16 | 2005-08-10 | 吴锡璋 | Pressure distributor of wheel tractor |
| CN201100276Y (en) * | 2007-02-05 | 2008-08-13 | 于晓卿 | A distributor |
| CN202048037U (en) * | 2011-03-18 | 2011-11-23 | 常州联发凯迪机械有限公司 | Hydraulic distributor of wheeled tractor |
| CN102979774A (en) * | 2012-05-24 | 2013-03-20 | 山东弘宇机械有限公司 | Control valve block special for tractor hydraulic suspension |
| CN205779981U (en) * | 2016-07-07 | 2016-12-07 | 第一拖拉机股份有限公司 | A kind of tractor allotter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106151141A (en) | 2016-11-23 |
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