CN204646840U - A kind of high-volume hydraulic distributor - Google Patents
A kind of high-volume hydraulic distributor Download PDFInfo
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- CN204646840U CN204646840U CN201520328620.8U CN201520328620U CN204646840U CN 204646840 U CN204646840 U CN 204646840U CN 201520328620 U CN201520328620 U CN 201520328620U CN 204646840 U CN204646840 U CN 204646840U
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- way valve
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Abstract
The utility model relates to a kind of high-volume hydraulic distributor, belongs to technical field of hydraulic pressure.It comprises distributor body, distributor body offers oil pump oil inlet P, oil cylinder cavity of resorption interface A, cylinder upper cavity oil interface B and oil return inlet T, main control valve and one-way valve are installed in distributor body, described one-way valve comprises first, second one-way valve, first, second one-way valve described is arranged in parallel between described oil cylinder cavity of resorption interface A and described main control valve, and described distributor body top is also provided with safety valve.Main control valve is in diverse location, can realize between oil pump oil inlet P, oil return inlet T, oil cylinder cavity of resorption interface A and cylinder upper cavity oil interface, forming the relation being communicated with or blocking, the hydraulic jack that distributor is controlled is in lifting, neutrality, decline, floating state, the utility model pressure distributor structure is simple, is quick on the draw, good airproof performance, usability is stablized, reliability is high, convenient disassembly, is convenient to maintenance.
Description
Technical field
The utility model relates to a kind of high-volume hydraulic distributor, belongs to technical field of hydraulic pressure.
Background technique
The effect of hydraulic pressure elevator of tractor connects and traction farm implements, handles the lifting of farm implements, control the tilth of farm implements, to tractor driving wheel weightening finish, to improve the adhesion property of tractor, hydraulic energy outputted on Work machine and carries out other operation.Wherein pressure distributor is the core component of hydraulic control system, its effect is responsible for realizing hydraulic control lifter by hydraulic control oil cylinder to complete lifting, neutrality, decline and float function, thus realizing the lifting of farm implements, lower degradation action, its performance has directly great impact to whole tractor hydraulic suspension arrangement performance.
In recent years, tractor manufacture, development progress are accelerated, Development Trend tendency high-power, high-performance.There is following shortcoming in traditional pressure distributor: easily causes the faults such as poorly sealed, card valve, and accuracy of manufacturing requires comparatively tight, and maintenance cost is high, along with the lifting of tractor power, easily causes and promote for faults such as shortage of oil, lifting speed are slow.The technical performance of traditional pressure distributor has been difficult to adapt to current development trend.
Model utility content
The deficiency that the utility model exists for above-mentioned prior art, provides a kind of structure simple, good airproof performance, and the high-volume hydraulic distributor accelerating lifting speed.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of high-volume hydraulic distributor, comprise distributor body, described distributor body offers oil pump oil inlet P, oil cylinder cavity of resorption interface A, cylinder upper cavity oil interface B and oil return inlet T, main control valve and one-way valve are installed in described distributor body, described one-way valve comprises the first one-way valve and the second one-way valve, described first one-way valve and the second one-way valve are arranged in parallel between described oil cylinder cavity of resorption interface A and described main control valve, and described distributor body top is also provided with safety valve.Described safety valve communicates with oil pump oil inlet P, can prevent system overvoltage.Damage hydraulic element.
Further, described main control valve is arranged on the middle position of described distributor body, described safety valve is arranged on the right side on described distributor body top, described first one-way valve is arranged on the front side on described distributor body top, and described second one-way valve is arranged on the left side on described distributor body top.
Further, the steel ball lower end of described first one-way valve is provided with control push rod.When the hydraulic jack that this distributor controls is in decline or quick condition, control push rod and can open steel ball conveniently by the first one-way valve connection oil cylinder cavity of resorption interface A and oil return inlet T
During lifting state, the oil input channel of described first one-way valve, the second one-way valve is communicated with the oil pocket of described main control valve, and the oil road of described first one-way valve, the second one-way valve is communicated with described oil cylinder cavity of resorption interface A.
The beneficial effects of the utility model are: by the position that main control valve place is different, control oil pump oil inlet P, oil cylinder cavity of resorption interface A, the relation being communicated with or blocking is formed between cylinder upper cavity oil interface B and oil return inlet T, thus the hydraulic jack realizing controlling to use this distributor to control is in lifting, neutral, the state declining and float, main control valve in parallel with oil cylinder cavity of resorption interface A place first, second one-way valve increases the right wing between oil pump and oil cylinder logical pasta when the state of lifting amasss, be convenient to the high pressure oil of large discharge by oil pump oil inlet P, oil cylinder cavity of resorption interface A enters into the cavity of resorption of hydraulic jack, accelerate lifting speed, to meet the performance requirement of powerful tractor.In a word, the utility model structure is simply convenient to safeguard, good airproof performance, and usability is more stable, more reliable, especially accelerates the lifting speed of oil cylinder when the state of lifting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional drawing along C-C direction in Fig. 1;
Fig. 3 is the sectional drawing along D-D direction in Fig. 2;
Fig. 4 is oil circuit control principle drawing of the present utility model.
In figure, the 1, first one-way valve; 2, the second one-way valve; 3, safety valve; 4, steel ball; 5, push rod is controlled; 6, main control valve; 7, oil pocket; 8, distributor body.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1 to 4, a kind of high-volume hydraulic distributor, comprise distributor body 8, described distributor body 8 offers oil pump oil inlet P, oil cylinder cavity of resorption interface A, cylinder upper cavity oil interface B and oil return inlet T, in described distributor body 8, main control valve 6 and one-way valve are installed, described one-way valve comprises the first one-way valve 1 and the second one-way valve 2, described first one-way valve 1 and the second one-way valve 2 are arranged in parallel between described oil cylinder cavity of resorption interface A and described main control valve 6, and described distributor body top is also provided with safety valve 3.
Described main control valve 6 is arranged on the middle position of described distributor body, described safety valve 3 is arranged on the right side on described distributor body top, described first one-way valve 1 is arranged on the front side on described distributor body top, and described second one-way valve 2 is arranged on the left side on described distributor body top.
Steel ball 4 lower end of described first one-way valve is provided with and controls push rod 5.When the hydraulic jack that this distributor controls is in decline or quick condition, control push rod and can open steel ball conveniently by the first one-way valve connection oil cylinder cavity of resorption interface A and oil return inlet T.
During lifting state, the oil input channel of described first one-way valve, the second one-way valve is communicated with the oil pocket 7 of described main control valve, and the oil road of described first one-way valve, the second one-way valve is communicated with described oil cylinder cavity of resorption interface A.
The oil circuit control working principle of the utility model pressure distributor is as follows:
Lifting state oil pump oil inlet P communicates with oil cylinder cavity of resorption interface A, oil return inlet T communicates with cylinder upper cavity oil interface B, the high pressure oil of oil pump, by the oil pocket of oil pump oil inlet P, main control valve, then enters into the first one-way valve and the second one-way valve, enters into oil cylinder cavity of resorption by first, second one-way valve; And cylinder upper cavity oil low pressure oil enters into fuel tank by cylinder upper cavity oil interface B, oil return inlet T, the piston realizing oil cylinder moves;
Neutral condition closes oil cylinder cavity of resorption interface A, cylinder upper cavity oil interface B, and oil pump oil inlet P is connected with oil return inlet T, and oil pump is next oily directly can enter into fuel tank;
Decline state oil pump oil inlet P communicates with cylinder upper cavity oil interface B, oil return inlet T communicates with oil cylinder cavity of resorption interface A, the high pressure oil of oil pump can enter into cylinder upper cavity oil, and the fluid of oil cylinder cavity of resorption enters into fuel tank by oil cylinder cavity of resorption interface A, oil return inlet T, and the piston of oil cylinder moves down;
Quick condition oil pump oil inlet P, oil return inlet T, oil cylinder cavity of resorption interface A, cylinder upper cavity oil interface B, 4 interfaces are interconnected, and oil cylinder piston maintains transient equiliblium.
The utility model high-volume hydraulic distributor can be widely used in high and medium power tractor hydraulic suspension arrangement.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a high-volume hydraulic distributor, comprise distributor body, described distributor body offers oil pump oil inlet P, oil cylinder cavity of resorption interface A, cylinder upper cavity oil interface B and oil return inlet T, it is characterized in that, main control valve and one-way valve are installed in described distributor body, described one-way valve comprises the first one-way valve and the second one-way valve, described first one-way valve and the second one-way valve are arranged in parallel between described oil cylinder cavity of resorption interface A and described main control valve, and described distributor body top is also provided with safety valve.
2. high-volume hydraulic distributor according to claim 1, it is characterized in that, described main control valve is arranged on the middle position of described distributor body, described safety valve is arranged on the right side on described distributor body top, described first one-way valve is arranged on the front side on described distributor body top, and described second one-way valve is arranged on the left side on described distributor body top.
3. high-volume hydraulic distributor according to claim 1 and 2, is characterized in that, the steel ball lower end of described first one-way valve is provided with control push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328620.8U CN204646840U (en) | 2015-05-20 | 2015-05-20 | A kind of high-volume hydraulic distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328620.8U CN204646840U (en) | 2015-05-20 | 2015-05-20 | A kind of high-volume hydraulic distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646840U true CN204646840U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328620.8U Active CN204646840U (en) | 2015-05-20 | 2015-05-20 | A kind of high-volume hydraulic distributor |
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| Country | Link |
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| CN (1) | CN204646840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956757A (en) * | 2017-12-08 | 2018-04-24 | 山东弘宇农机股份有限公司 | A kind of multifunctional assembled hydraulic control valve |
-
2015
- 2015-05-20 CN CN201520328620.8U patent/CN204646840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956757A (en) * | 2017-12-08 | 2018-04-24 | 山东弘宇农机股份有限公司 | A kind of multifunctional assembled hydraulic control valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |