CN202203201U - Hydraulic distributor - Google Patents
Hydraulic distributor Download PDFInfo
- Publication number
- CN202203201U CN202203201U CN2011203162372U CN201120316237U CN202203201U CN 202203201 U CN202203201 U CN 202203201U CN 2011203162372 U CN2011203162372 U CN 2011203162372U CN 201120316237 U CN201120316237 U CN 201120316237U CN 202203201 U CN202203201 U CN 202203201U
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- CN
- China
- Prior art keywords
- oil
- valve
- main control
- inlet
- oil inlet
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic distributor. A main control valve, a lowering valve, a one-way valve, an oil return valve and an unloading valve are installed in a casing of the distributor. The casing of the distributor is provided with an oil inlet P1 and an oil inlet P2. An oil cylinder oil inlet J, an oil cylinder oil return port H, an oil return port T1 and an oil inlet cavity of the main control valve are communicated with the oil inlet P2, and an oil outlet cavity of the main control valve is communicated with an oil inlet channel of the one-way valve. An oil inlet channel of the oil return valve is communicated with the oil inlet P1, and the oil cylinder oil return port H is communicated with an oil inlet cavity of the lowering valve. When in a neutral position, the main control valve cuts off an oil way between the oil inlet channel of the one-way valve and the oil inlet P2. The hydraulic distributor is simple in structure, flexible in reaction, good in sealing performance, stable in use performance, high in reliability and convenient to dismount and maintain. High-pressure oil enters from the oil inlet P1 and the oil inlet P2. When in the neutral position, the main control valve cuts off the oil way between the one-way valve and the oil inlet P2, and the problem of no-load lifting is solved.
Description
Technical field
The utility model relates to the Hydraulic Field system, relates in particular to a kind of pressure distributor.
Background technique
The effect of hydraulic pressure elevator of tractor is to connect and the traction farm implements, handles the up-down of farm implements, and the tilth of control farm implements to the tractor driving wheel weightening finish, to improve the adhesion property of tractor, can output to its operation of the enterprising Xingqi of Work machine to hydraulic pressure.Pressure distributor is the core component of hydraulic control system, and its effect is to be responsible for the control lifter to accomplish above-mentioned functions, and its performance has direct great influence to whole tractor hydraulic suspension arrangement performance.
In recent years, tractor manufacturing, development progress are accelerated, research and development trend tendency high-power, high-performance.There is following shortcoming in traditional pressure distributor: relatively simple for structure, cause poorly sealed, fault such as card valve etc. easily, and accuracy of manufacturing requires tighter; Maintenance cost is high, and along with the lifting of tractor power, oil pump confession amount strengthens; Return pressure significantly rises, and causes faults such as unloaded lifting easily.The technical performance of traditional pressure distributor has been difficult to adapt to current development trend.
The model utility content
The technical problem that the utility model will solve provides a kind of simple in structure, good airproof performance, usability is stable, reliability is high, be convenient to keep in repair, can not cause the unloaded pressure distributor that promotes.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of pressure distributor comprises distributor body, and main control valve, lowering valve, one-way valve, scavenger valve, unloading valve are installed in the said distributor body; Offer oil inlet P 1, P2 on the distributor body, oil cylinder filler opening J, oil cylinder return opening H; Oil return inlet T 1, the oil suction chamber of main control valve communicates with oil inlet P 2, and the oil pocket that goes out of main control valve communicates with the oil input channel of one-way valve; The oil pocket that goes out of one-way valve communicates with oil cylinder filler opening J, and the oil input channel of scavenger valve communicates with the oil input channel of unloading valve, and the oil pocket that goes out of unloading valve is connected with oil return inlet T 3; The oil input channel of scavenger valve is connected with oil inlet P 1, and the oil pocket that goes out of scavenger valve communicates with oil return inlet T 1, and oil cylinder return opening H is connected with the oil suction chamber of lowering valve; Lowering valve oil return inlet T 2 is set on the lowering valve, and during the neutral position, main control valve cuts off the oil input channel of one-way valve and the oil circuit between the oil inlet P 2.
The pressure distributor of the utility model; Wherein said main control valve is installed in the rear side of bottom in the distributor body, and lowering valve is installed in the front side of bottom, and one-way valve is installed in the rear side on top; Scavenger valve is installed in the front side on top, and unloading valve is installed in the leftward position of one-way valve and scavenger valve.
The pressure distributor of the utility model is provided with before and after the wherein said unloading valve.
The pressure distributor of the utility model is provided with damping hole and several oil inlet holes on the wherein said main control valve.
The utility model pressure distributor is simple in structure, is quick on the draw good airproof performance; Usability is stable, and reliability is high, convenient disassembly; Be convenient to maintenance, high pressure oil gets into from oil inlet P 1, P2, during the neutral position; Main control valve cuts off the oil circuit between one-way valve and the oil inlet P 2, has solved the problem of unloaded lifting.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model pressure distributor;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1.
Embodiment
Shown in Fig. 1-3; The utility model pressure distributor comprises distributor body 1, and the rear side of bottom is installed main control valve 5, the installed in front lowering valve 6 of bottom in the distributor body 1; The rear side of distributor body 1 internal upper part is installed one-way valve 3; The installed in front scavenger valve 4 on top is installed unloading valve 2 in the leftward position of one-way valve 3 and scavenger valve 4, and unloading valve 2 front and back are provided with.Offer oil inlet P 1, P2 on the distributor body 1; Oil cylinder filler opening J; Oil cylinder return opening H, oil return inlet T 1; The oil suction chamber 51 of main control valve 5 communicates with oil inlet P 2, and the oil pocket 52 that goes out of main control valve 5 communicates with the oil input channel 31 in one-way valve 3 left sides, and the oil pocket 32 that goes out of one-way valve 3 communicates with oil cylinder filler opening J.The oil input channel 41 in scavenger valve 4 left sides communicates with the oil input channel 21 of unloading valve 2 front ends; The oil pocket 22 that goes out of unloading valve 2 is connected with oil return inlet T 3 (not shown)s; The oil input channel 41 in scavenger valve 4 left sides is connected with oil inlet P 1, and the oil pocket 42 that goes out of scavenger valve 4 communicates with oil return inlet T 1.Oil cylinder return opening H is connected with the oil suction chamber 61 of lowering valve 6, and the right side of lowering valve 6 is provided with lowering valve oil return inlet T 2.
When using the utility model pressure distributor, oil inlet P 1, P2 are connected with the oil outlet of oil pump, and oil cylinder resembles hydraulic fluid port J and is connected with the filler opening of oil cylinder, and oil cylinder return opening H is connected with the oil outlet of oil cylinder.Oil return inlet T 1 is connected with fuel tank, and lowering valve oil return inlet T 2 is connected with fuel tank, and unloading valve oil return inlet T 3 is connected with fuel tank.
The oil circuit control mode working principle of the utility model pressure distributor is following:
High pressure oil gets into from oil inlet P 1, P2, and during position as shown in Figure 3, neutral position, the oil circuit that main control valve 5 cuts off between one-way valves 3 and the oil inlet P 2 has solved the problem of unloaded lifting.Scavenger valve 4 is opened simultaneously, and high pressure oil gets into from oil inlet P 1, through scavenger valve 4, gets into fuel tank from oil return inlet T 1.
During raised position, scavenger valve 4 cuts out, and main control valve 5 moves to left simultaneously, and the oil circuit between oil inlet P 2 and the one-way valve 3 is opened, and high pressure oil can only pass through one-way valve 3, gets into oil cylinder from oil cylinder filler opening J, and farm implements promote.
During raised position, main control valve 5 moves to right, the oil circuit that main control valve 5 cuts off between one-way valve 3 and the oil inlet P 2, and scavenger valve 4 is opened simultaneously, and high pressure oil gets into from oil inlet P 1, through scavenger valve 4, gets into fuel tank from oil return inlet T.Lowering valve 6 is opened simultaneously, and in-oil cylinder oil gets into fuel tank through lowering valve 6 from lowering valve oil return inlet T 2, and farm implements descend.
The utility model pressure distributor and tractor lifter are supporting, can be widely used in high and medium power tractor hydraulic suspension arrangement.
The utility model is through test of many times, and the detection of how tame main engine factory, and each item technical order all is superior to other conventional construction, can satisfy the current techniques development trend and the market demand.
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technological scheme of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (4)
1. a pressure distributor comprises distributor body, it is characterized in that: main control valve, lowering valve, one-way valve, scavenger valve, unloading valve are installed in the said distributor body; Offer oil inlet P 1, P2 on the distributor body, oil cylinder filler opening J, oil cylinder return opening H; Oil return inlet T 1, the oil suction chamber of main control valve communicates with oil inlet P 2, and the oil pocket that goes out of main control valve communicates with the oil input channel of one-way valve; The oil pocket that goes out of one-way valve communicates with oil cylinder filler opening J, and the oil input channel of scavenger valve communicates with the oil input channel of unloading valve, and the oil pocket that goes out of unloading valve is connected with oil return inlet T 3; The oil input channel of scavenger valve is connected with oil inlet P 1; The oil pocket that goes out of scavenger valve communicates with oil return inlet T 1, and oil cylinder return opening H is connected with the oil suction chamber of lowering valve, and lowering valve oil return inlet T 2 is set on the lowering valve; During the neutral position, main control valve cuts off the oil input channel of one-way valve and the oil circuit between the oil inlet P 2.
2. pressure distributor according to claim 1; It is characterized in that: said main control valve is installed in the rear side of bottom in the distributor body; Lowering valve is installed in the front side of bottom; One-way valve is installed in the rear side on top, and scavenger valve is installed in the front side on top, and unloading valve is installed in the leftward position of one-way valve and scavenger valve.
3. pressure distributor according to claim 2 is characterized in that: be provided with before and after the said unloading valve.
4. pressure distributor according to claim 3 is characterized in that: damping hole and several oil inlet holes are set on the said main control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203162372U CN202203201U (en) | 2011-08-26 | 2011-08-26 | Hydraulic distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203162372U CN202203201U (en) | 2011-08-26 | 2011-08-26 | Hydraulic distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203201U true CN202203201U (en) | 2012-04-25 |
Family
ID=45967323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203162372U Expired - Lifetime CN202203201U (en) | 2011-08-26 | 2011-08-26 | Hydraulic distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015146A (en) * | 2016-07-18 | 2016-10-12 | 山东弘宇农机股份有限公司 | Built-in hydraulic distributor |
| CN110753489A (en) * | 2017-06-15 | 2020-02-04 | 土耳其赫马公司 | Control valve for hydraulic lifter |
-
2011
- 2011-08-26 CN CN2011203162372U patent/CN202203201U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015146A (en) * | 2016-07-18 | 2016-10-12 | 山东弘宇农机股份有限公司 | Built-in hydraulic distributor |
| CN110753489A (en) * | 2017-06-15 | 2020-02-04 | 土耳其赫马公司 | Control valve for hydraulic lifter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG HONGYU AGRICULTURAL MACHINERY CO., LTD. Free format text: FORMER NAME: SHANDONG HONGYU MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 261400 No. 99, Wen Quan Dong Road, Laizhou, Shandong, Yantai Patentee after: SHANDONG HONGYU MACHINERY CO., LTD. Address before: 261400 No. 99, Wen Quan Dong Road, Laizhou, Shandong, Yantai Patentee before: Shandong Hongyu Machinery Co., Ltd. |
|
| CU03 | Correction of utility model patent gazette | ||
| CU03 | Correction of utility model patent gazette |
Correction item: Patentee Correct: Shandong Hongyu Machinery Co., Ltd.|261400 No. 99, Wen Quan Dong Road, Laizhou, Shandong, Yantai False: SHANDONG HONGYU MACHINERY CO., LTD.|261400 No. 99, Wen Quan Dong Road, Laizhou, Shandong, Yantai Number: 52 Volume: 29 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: SHANDONG HONGYU AGRICULTURAL MACHINERY CO., LTD.:261400 YANTAI, SHANDONG PROVINCE TO: SHANDONG HONGYU MACHINERY CO., LTD.:261400 YANTAI, SHANDONG PROVINCE |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG HONGYU AGRICULTURAL MACHINERY CO., LTD. Free format text: FORMER NAME: SHANDONG HONGYU MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261400 No. 99, Wen Quan Dong Road, Laizhou, Shandong, Yantai Patentee after: SHANDONG HONGYU MACHINERY CO., LTD. Address before: 261400 No. 99, Wen Quan Dong Road, Laizhou, Shandong, Yantai Patentee before: Shandong Hongyu Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |