CN100516554C - Built-in constant-pressure output control pressure source module - Google Patents
Built-in constant-pressure output control pressure source module Download PDFInfo
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- CN100516554C CN100516554C CNB2006100521659A CN200610052165A CN100516554C CN 100516554 C CN100516554 C CN 100516554C CN B2006100521659 A CNB2006100521659 A CN B2006100521659A CN 200610052165 A CN200610052165 A CN 200610052165A CN 100516554 C CN100516554 C CN 100516554C
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Abstract
The invention discloses a built-in type constant pressure outputting controlled pressure source module, which is characterized by the following: comprising module body; opening pivoted oil pump inlet P, multiport proportion operating valve group rotating group outlet P', controlled pressure outlet Y1, Y2 and draining mouth T'; dividing the rotating oil pump inlet P to at least two ways; connecting the one way to the multiport proportion operating valve group rotating group outlet P'; connecting the other way to filter F; dividing the other end of the filter F to two way through adjustable pressure output pressure relief valve Rd; connecting one way to the controlled pressure outlet Y1, Y2 through each one-way valve S; connecting the other way to the draining mouth T' through adjustable pressure-limiting valve Rf. This invention possesses compact structure, which can decrease cost.
Description
Technical field
The present invention relates to the pilot pressure oil sources technical field of crane hydraulic system.
Background technique
As everyone knows, hydraulic automobile is gone up vehicle hydraulic system at hoist (hydraulic construction machine) must be equipped with the pilot pressure oil sources, hydraulic control multi-channel proportional control valve, electric liquid multi-channel proportional control valve are provided, the elevator winch stop assembly declutches and other need fluid control pressure used, domestic most engineering machinery manufactory is provided with control oil pump and control loop specially in system, increased system complexity, pipe arrangement also increases, and has improved manufacture cost.For this reason, there is the company of manufacturing and designing in the time of system design, to cancel special-purpose control oil pump, but in system, be provided with reduction valve and accumulator in addition, be installed in the outside of multi-channel proportional control valve, be connected with pipeline, from control valve, obtain incoming pressure, from external reduction valve pressure output control, this structure arrangement makes size huge again, and floor space increases, fabricating cost improves, because the incoming pressure fluctuation is bigger, sometimes up to 20MPa, influences pressure output control stability, so, require further improvement design.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned defective, and a kind of built-in constant-pressure output control pressure source module that compact structure is reasonable, simple and practical, reduce system cost that makes is provided.
The present invention solves the problems of the technologies described above the technological scheme that is adopted:. a kind of built-in constant-pressure output control pressure source module, it is characterized in that including module body, the module body surface has dump pump inlet P, outlet P ' and pilot pressure delivery outlet Y1 to multichannel proportional control valve group revolution connection, Y2 and drain tap T ', dump pump inlet P is divided into two-way at least, one the tunnel removes to connect the outlet P ' of multi-channel proportional operating valve set revolution connection, filter F is taken on another road, the other end of filter F is divided into two-way after exporting reduction valve Rd through adjustable level pressure, one the tunnel meets pilot pressure delivery outlet Y1 respectively through separately one-way valve S at least, Y2, another road meets drain tap T ' through Adjustable pressure limiting valve Rf.
As improvement, also tell one tunnel process one-way valve S behind the described adjustable level pressure output reduction valve Rd and remove to connect pilot pressure pressure tap Ym, pilot pressure pressure tap Ym and pilot pressure delivery outlet Y1, Y2 are contiguous at the module body surface location, are convenient to user test like this and use.
As improvement, described dump pump inlet P also tells one the tunnel and removes to connect incoming pressure pressure tap G, is convenient to user test like this and uses.
Further improve, the adjusting bolt of adjustable level pressure output reduction valve Rd is arranged on the side of module body, and the adjusting bolt of described Adjustable pressure limiting valve Rf also is arranged on the side of module body, and close to each other, makes things convenient for the user to regulate and set use like this.
Further improve, described filter is left mounting hole near the position of module body another side, and the end cap that is connected with cooperation is installed, and is lined with seal ring between end cap and the mounting hole, is convenient to the user and changes filter, avoids the card valve.
At last, be arranged on the back side of module body to the outlet P ' of multichannel proportional control valve group revolution connection, and dump pump inlet P, drain tap T ' are distributed in the end face position of module body, pilot pressure pressure tap Ym and pilot pressure delivery outlet Y1, Y2 are distributed in the positive position of module body, are convenient to module and the multi-channel proportional control valve goes connection.
Compared with prior art, the invention has the advantages that: employing can with the built-in constant-pressure output control pressure source module of the superimposed installation of multi-channel proportional control valve, it can simplify hydraulic system, the special pilot pressure source oil pump that is equipped with in the cancellation system, need not the special accumulator of installing on control loop, as long as main frame one starts, this module Y1, the Y2 mouth is exported needed pilot pressure scope immediately, reduced system layout, reduced system's fabricating cost, adopt the structure of adjustable level pressure output reduction valve and Adjustable pressure limiting valve, make things convenient for the user pressure to be carried out real-time regulated and setting, enlarge using scope, module P mouth according to system's needs, Y1, the Y2 mouth has all been installed pressure-measuring point, also being convenient to the user observes and regulates in the time of debugging, the big filter of circulation area has been installed in the module, preventing the card valve, and has been convenient for changing filter core, selecting revolution is more rational with oil pump as the P mouth incoming pressure of this module, and spool in let out also very few.
Description of drawings
Fig. 1 is the built-in constant-pressure output control pressure source module hydraulic schematic diagram;
Fig. 2 is the structure sectional view of this module;
Fig. 3 is the plan view of this module;
Fig. 4 is the side view of this module.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1-4, a kind of built-in constant-pressure output control pressure source module, it includes module body 6, module body 6 surfaces have dump pump inlet P, outlet P ' to multichannel proportional control valve group revolution connection, incoming pressure pressure tap G and pilot pressure delivery outlet Y1, Y2, pilot pressure pressure tap Ym and drain tap T ', dump pump inlet P is divided into three the tunnel, one the tunnel removes to connect the outlet P ' of multi-channel proportional operating valve set revolution connection, one the tunnel removes to connect incoming pressure pressure tap G, filter F is taken on another road, the other end of filter F is divided into two-way after exporting reduction valve Rd through adjustable level pressure, one the tunnel meets pilot pressure delivery outlet Y1 respectively through separately one-way valve S, Y2 and pilot pressure pressure tap Ym, and pilot pressure pressure tap Ym and pilot pressure delivery outlet Y1, Y2 is contiguous at the module body surface location, be distributed in the positive position of module body, one-way valve S adopts steel ball 23, the top cover 21 of spring 22 and perforate is formed, and another road meets drain tap T ' through Adjustable pressure limiting valve Rf.Be arranged on the back side of module body to the outlet P ' of multichannel proportional control valve group revolution connection, and dump pump inlet P, drain tap T ' are distributed in the end face position of module body.The adjusting bolt of adjustable level pressure output reduction valve Rd is arranged on the side of module body, wherein spool 9, valve pocket 12, spring 11, spring seat 13, adjusting bolt 16, nut 15, fastening screw nut 17, O RunddichtringO 14 have been formed adjustable level pressure output reduction valve Rd, the adjusting bolt of Adjustable pressure limiting valve Rf 10 also is arranged on the side of module body, and it is located adjacent one another, spool 9 has runner to module body 6 surface formings, runner port 7 end cover 8 that has been threaded.Filter 5 is left mounting hole near the position of module body another side, and the end cap 2 that is connected with cooperation is installed, and end cap 2 surfaces have knob 1, are lined with seal ring 3 between end cap and the mounting hole, are lined with seal ring 4 between end cap and the filter 5, are convenient to it and change filter core.
Its working principle is such, (revolution discharge capacity 32～40ml/r) enters from the P mouth swirl gear with oil pump, one the road directly exports the revolution connection of stack to from the back side, use for swirl gear work, another road enters level pressure output relief pressure valve cartridge by filter, the pilot pressure that is decompressed to 3.0MPa is from Y1 and the output of Y2 mouth, pilot pressure source as whole hydraulic system, this pilot pressure is delivered to the spring force that spool left end and spool right-hand member set by the relief pressure valve cartridge central small hole simultaneously and contends with, when Y1 and Y2 mouth pilot pressure the time greater than 3.0MPa, spool moves right, turn down the P chamber to the circulation area (orifice size) between Y1 and the Y2 mouth, the pilot pressure of Y1 and Y2 mouth is reduced, otherwise be moved to the left, increase the P chamber to the circulation area (orifice size) between Y1 and the Y2 mouth, improve Y1 and Y2 mouth pilot pressure, make this pilot pressure basicly stable at 3.0MPa, pilot pressure setting this moment available adjustment bolt is regulated, if P mouth pressure moment sharply increases, the explosive decompression and relief pressure valve cartridge has little time to move right, when causing Y1 and Y2 mouth pressure output control superpressure, adjustable limiting valve is opened immediately, cut down Y1 and Y2 mouth surge pressure, make pilot pressure be no more than 5.0MPa, owing to adopt the P mouth inlet pressure source of swirl gear oil pump as this module, be that the P mouth pressure is less than 3.0Mpa the time when swirl gear control valve meta unloads, level pressure output reduction valve spool 9 is in full open automatically, do not reduce pressure, Y1 and Y2 mouth pressure output control equate with the P mouth pressure, be not less than 1.0MPa in order to ensure the required minimum pilot pressure of system, generally be provided with adjustable back pressure valve with the superimposed revolution connection of this module inside, even guaranteeing Y1 and Y2 mouth pressure output control also can reach greater than 1.0MPa in the time of swirl gear control valve meta, and can be adjusted to 2.0MPa, so just can guarantee under all operating modes of revolution connection, this module Y1 and Y2 mouth can both provide the output of ideal control pressure, the Ym mouth can be measured Y1 and Y2 mouth pressure output control at any time, the G mouth is measured P mouth incoming pressure, the valve core diameter of level pressure output reduction valve is 6mm, very little with the valve body matching gap, in order to prevent the card valve, filter has been installed, a small amount of interior leakage that Spielpassung produces and the oil return behind the adjustable pressure limiting opening of valves are all flowed out from T ' mouthful, straight-through fuel tank is to improve Y1 and Y2 mouth pressure output control stability.
The overall structure of this product is formed and profile is seen Fig. 1-4, the valve piece that presents rule, available three screws are connected with the multi-channel proportional operating valve set is superimposed, install very convenient, beneath screw hole can be connected with base, module has been formed the very compact chip module of size with filter, adjustable level pressure output reduction valve (comprising spool, spring, valve pocket, spring seat, adjusting bolt, nut, fastening screw nut and O-ring seals composition), the Adjustable pressure limiting valve concentrated module body inside that is assembled in such as (as the secondary relief valves of type pilot).
Claims (7)
1. built-in constant-pressure output control pressure source module, it is characterized in that including module body, the module body surface has dump pump inlet (P), to outlet of multichannel proportional control valve group revolution connection (P ') and pilot pressure delivery outlet (Y1, Y2) and drain tap (T '), dump pump inlet (P) is divided into two-way at least, one tunnel outlet of removing to connect multi-channel proportional operating valve set revolution connection (P '), filter (F) is taken on another road, the other end of filter (F) is divided into two-way after exporting reduction valve (Rd) through adjustable level pressure, one the tunnel meets pilot pressure delivery outlet (Y1 respectively through separately one-way valve (S) at least, Y2), another road connects drain tap (T ') through Adjustable pressure limiting valve (Rf).
2. built-in constant-pressure output control pressure source module according to claim 1, it is characterized in that also telling behind the adjustable level pressure output reduction valve (Rd) the one tunnel and go to connect pilot pressure pressure tap (Ym) through one-way valve (S), pilot pressure pressure tap (Ym) is contiguous with pilot pressure delivery outlet (Y1, Y2) at the module body surface location.
3. built-in constant-pressure output control pressure source module according to claim 1 is characterized in that dump pump inlet (P) also tells one the tunnel and go to connect incoming pressure pressure tap (G).
4. built-in constant-pressure output control pressure source module according to claim 1 is characterized in that the adjusting bolt of adjustable level pressure output reduction valve (Rd) is arranged on the side of module body.
5. built-in constant-pressure output control pressure source module according to claim 1 is characterized in that the adjusting bolt of Adjustable pressure limiting valve (Rf) is arranged on the side of module body.
6. built-in constant-pressure output control pressure source module according to claim 1 is characterized in that mounting hole is left at the position of the close module body another side of filter (F), and the end cap that is connected with cooperation is installed, and is lined with seal ring between end cap and the mounting hole.
7. built-in constant-pressure output control pressure source module according to claim 1, it is characterized in that the outlet (P ') to multichannel proportional control valve group revolution connection is arranged on the back side of module body, and dump pump inlet (P), drain tap (T ') are distributed in the end face position of module body, and pilot pressure pressure tap (Ym) and pilot pressure delivery outlet (Y1, Y2) are distributed in the positive position of module body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100521659A CN100516554C (en) | 2006-06-28 | 2006-06-28 | Built-in constant-pressure output control pressure source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100521659A CN100516554C (en) | 2006-06-28 | 2006-06-28 | Built-in constant-pressure output control pressure source module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101096970A CN101096970A (en) | 2008-01-02 |
| CN100516554C true CN100516554C (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100521659A Expired - Fee Related CN100516554C (en) | 2006-06-28 | 2006-06-28 | Built-in constant-pressure output control pressure source module |
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| CN (1) | CN100516554C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982660A (en) * | 2010-10-29 | 2011-03-02 | 江门市兴江转向器有限公司 | Flow control valve of hydraulic steering system |
| CN102718145B (en) * | 2012-03-23 | 2015-05-20 | 昆山三一机械有限公司 | Crawler crane modularized hydraulic system and crane comparing same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4170214A (en) * | 1978-01-23 | 1979-10-09 | Double A Products Company | Hydraulic valve module |
| WO1981003208A1 (en) * | 1980-05-01 | 1981-11-12 | Boeing Co | Integral hydraulic blocking and relief valve |
| US4518004A (en) * | 1983-11-21 | 1985-05-21 | Hr Textron Inc. | Multifunction valve |
| US4787294A (en) * | 1987-07-29 | 1988-11-29 | Hydreco, Incorporated | Sectional flow control and load check assembly |
| US5313873A (en) * | 1991-10-12 | 1994-05-24 | Mercedes-Benz Ag | Device for controlling the flow of fluid to a fluid unit |
| US5992450A (en) * | 1998-06-30 | 1999-11-30 | Eaton Corporation | Cartridge valve having solenoid bypass and integral relief valve |
| CN1719046A (en) * | 2005-07-15 | 2006-01-11 | 上海昂丰矿机科技有限公司 | Automatic control valve block of biliquid flow |
-
2006
- 2006-06-28 CN CNB2006100521659A patent/CN100516554C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4170214A (en) * | 1978-01-23 | 1979-10-09 | Double A Products Company | Hydraulic valve module |
| WO1981003208A1 (en) * | 1980-05-01 | 1981-11-12 | Boeing Co | Integral hydraulic blocking and relief valve |
| US4518004A (en) * | 1983-11-21 | 1985-05-21 | Hr Textron Inc. | Multifunction valve |
| US4787294A (en) * | 1987-07-29 | 1988-11-29 | Hydreco, Incorporated | Sectional flow control and load check assembly |
| US5313873A (en) * | 1991-10-12 | 1994-05-24 | Mercedes-Benz Ag | Device for controlling the flow of fluid to a fluid unit |
| US5992450A (en) * | 1998-06-30 | 1999-11-30 | Eaton Corporation | Cartridge valve having solenoid bypass and integral relief valve |
| CN1719046A (en) * | 2005-07-15 | 2006-01-11 | 上海昂丰矿机科技有限公司 | Automatic control valve block of biliquid flow |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101096970A (en) | 2008-01-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Jiangbei Yuzhou Hydraulic Equipment Factory Assignor: Lu Yongsong Contract record no.: 2011330000592 Denomination of invention: Built-in constant-pressure output control pressure source module Granted publication date: 20090722 License type: Exclusive License Open date: 20080102 Record date: 20110525 |
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| ASS | Succession or assignment of patent right |
Owner name: NINGBO JIANGBEI YUZHOU HYDRAULIC EQUIPMENT FACTORY Free format text: FORMER OWNER: LU YONGSONG Effective date: 20110708 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 315211 NINGBO YUZHOU HYDRAULIC EQUIPMENT FACTORY, KONGPULI, JIANGBEI, NINGBO CITY, ZHEJIANG PROVINCE TO: 315021 NO. 98, XINGYONG ROAD, JIANGBEI DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110708 Address after: Jiangbei District in Zhejiang province 315021 Hing Ningbo Yonglu No. 98 Patentee after: Ningbo Jiangbei Yuzhou Hydraulic Equipment Factory Address before: 315211 Ningbo Jiangbei Zhejiang Kongura Rika Ningbo Jiangbei hydraulic equipment factory Patentee before: Lu Yongsong |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20180628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |