CN101769276A - Quick unloading device for hydraulic servomotor - Google Patents
Quick unloading device for hydraulic servomotor Download PDFInfo
- Publication number
- CN101769276A CN101769276A CN200810205118A CN200810205118A CN101769276A CN 101769276 A CN101769276 A CN 101769276A CN 200810205118 A CN200810205118 A CN 200810205118A CN 200810205118 A CN200810205118 A CN 200810205118A CN 101769276 A CN101769276 A CN 101769276A
- Authority
- CN
- China
- Prior art keywords
- oil
- motivation
- unloading
- hydraulic oil
- discharging device
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000003754 machining Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 36
- 239000010720 hydraulic oil Substances 0.000 claims description 22
- 230000008450 motivation Effects 0.000 claims description 22
- 210000003746 feather Anatomy 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 13
- 230000003746 surface roughness Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000010426 asphalt Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a quick unloading device for a hydraulic servomotor and a method for ensuring sealing effect. The quick unloading device adopts a structure that a control element (1) arranged on one side of the hydraulic servomotor is combined with an unloading valve (2) arranged on an end part (20) at the bottom of the hydraulic servomotor. The unloading valve (2) mainly comprises an oil guide block (3) and an unloading disk (4), wherein matching surfaces of the oil guide block (3) and the unloading disk (4) are provided with two corresponding annular sealing planes (10), (11) which are consistent in size respectively; and an oblique through hole (21) connected with an oil cavity (15) is arranged at a place on a joint surface of the oil guide block (3) and the unloading disk (4), which has a certain distance from a centre. The unloading device adopting the structure can guarantee the unloading speed and has the advantages of small volume, convenient assembly and reliable performances. At the same time, the machining precision of the annular sealing planes is guaranteed by technological equipment and technological measures and is subjected to stabilizing treatment for a plurality of times, so that long sealing effect is guaranteed and maintained and that the leakage rate is lower than that required by design is guaranteed.
Description
Technical field:
The present invention relates to a kind of fast discharging device that is used for the hydraulic oil motivation.The feather valve in the cylinder outside at the bottom of comprising the control unit that places hydraulic oil motivation one side and placing the hydraulic oil motivation.
Background technique:
What the existing fast discharging device that is used for the hydraulic oil motivation of METHOD FOR TURBOGENERATOR SET adopted is the hydraulic manifold block assembly, by cartridge valve and asphalt channel and dispose hydraulic control component and implement unloading.Because the maximum draining traffic requirement during the oil engine unloading reaches 3600 liters/minute, satisfies the cartridge valve of this characteristic, its overcurrent latus rectum need reach 80 millimeters, and the boundary dimension of this cartridge valve is: 145 millimeters of diameters, 205 millimeters of length.Add control unit and asphalt channel, the length and width of this part assembly cross section is respectively more than 450 millimeters and 350 millimeters, and height is greater than 400 millimeters, and whole integrated package assembly need be installed in a side of oil engine.As seen, former discharge mechanism has not only occupied very big space, and inconvenience is installed, because the lateral space of oil engine is limited.
Summary of the invention:
The technical problem to be solved in the present invention provides and a kind ofly can guarantee the discharge rate fast discharging device of the hydraulic oil motivation of little, easy for installation, the reliable performance of volume again.
For solving the problems of the technologies described above, the combined structural type of feather valve (2) of cylinder end portion at the bottom of the present invention adopts the control unit (1) that places hydraulic oil motivation (20) one sides and places the hydraulic oil motivation.Because it axially still leaves very large space to oil engine in the mounting point of main frame.
Feather valve by oil-guiding block (3), unload load plate (4), shell (5), spring (6), pilot pin (7), bolt (8), O shape circle (9) is formed.
Oil-guiding block respectively has the ring packing plane of two correspondences and consistent size (10), (11) with unloading on the load plate fitting surface.98 millimeters of the external diameters of planar annular (10), 82 millimeters of internal diameters are the sealing surfaces between active chamber (13) and the oil back chamber (12); 175 millimeters of the external diameters of planar annular (11), 159 millimeters of internal diameters are the sealing surfaces between chamber (14) and the oil back chamber (12).Oil-guiding block (3) with unload load plate (4) junction plane on 96 millimeters places are provided with 11 millimeters of diameters apart from the center oblique through hole (21) be connected oil pocket (15), its gradient is identical with the male cone (strobilus masculinus) of oil back chamber (12).
Because feather valve is installed in the axial of oil engine, has avoided oil engine limited unfavorable factor of its lateral space in the mounting point of main frame, has reasonably used original axial space, and is easy for installation.Feather valve among the present invention (2), the length and width of its cross section are 330 millimeters, and be consistent with the end cylinder of oil engine, highly is 320 millimeters, also reduced than original device in the prerequisite lower volume that satisfies discharge rate.As a further improvement on the present invention, take necessary technological equipment and technological measure to guarantee the machining accuracy of unloading load plate (4) and oil-guiding block (3), make the machining accuracy of oil-guiding block (3) fitting surface be: planeness is less than 0.005 millimeter, 0.8 grade of surface roughness; The coplane degree preliminary working of unloading two planar annulars on load plate (4) fitting surface reaches:＜0.03 millimeter, and 1.6 grades of surface roughnesses; And these two parts are implemented repeatedly stabilization to eliminate internal stress.Fitting surface with two parts carries out facing-up then.Owing to taked these technical measures, unload area of contact after two planar annulars on load plate (4) and oil-guiding block (3) fitting surface are fitted all greater than 80%, and ride quality is good, and promptly two planar annulars are also yielding and still can keep good sealing effect behind the long-play.After testing, the leakage rate of hydraulic oil only reaches 0.51L/min much smaller than the designing requirement of 1.32L/min.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1: the sectional drawing of feather valve among the present invention.
Fig. 2: the schematic representation after this discharge mechanism and oil engine are supporting.
Embodiment:
Face (16) by Fig. 1 and the visible feather valve of Fig. 2 cooperates with the end cylinder outer side surface of oil engine, passes hole (17) with 8 bolts and is fixed on the cylinder bottom of oil engine.Discharge mechanism hydraulic control component be installed on the cylinder side, the end, hydraulic control component (1) import is communicated with oil engine active chamber (17), the outlet be communicated with oil pocket (15).Cylinder at the bottom of the oil engine (18) has and the corresponding asphalt channel of oil-guiding block, promptly corresponding to the active chamber (17) of chamber (13); Corresponding to the oil return annular groove (19) of oil back chamber (12) and the return line of connected system.
Unloading load plate (4) when the chamber (13) of oil engine active chamber (17) and feather valve does not have pressure fits with oil-guiding block under the effect of spring force.When the rising of active chamber oil pressure, the discharge mechanism control unit connects the mouth of oil pocket (15) to be opened simultaneously, and pressure oil enters the chamber (14) of feather valve.The pressure in feather valve (13), (14) two chambeies equates, but owing to unload the right side compression area of load plate (4) greater than chamber (13) area, unload load plate (4) right side active force just greater than the active force in left side, unload load plate (4) and be adjacent to oil-guiding block (3), (13), (14), (12) three chambeies isolate respectively, feather valve (2) cuts out, and oil engine (20) enters the loading working state.In case when needing unloading, the commutation of the hydraulic control component of discharge mechanism (1) acknowledge(ment) signal, unloading valve pocket (14) is by connecting oblique through hole (21) the draining decompression of oil pocket (15), and chamber (13) still hold original pressure, when the pressure after chamber (14) descend and the difference of chamber (13) pressure reach certain value, it is stressed stressed less than the left side to unload the load plate right side, unload load plate (4) and pushed away oil-guiding block (3), high pressure oil in oil engine active chamber (17) and the unloading valve pocket (13) enters the oil back chamber (12) of feather valve fast, and another chamber of a part of extending oil motivation of annular oil-return groove (19) in cylinder at the bottom of the oil engine, some enters the system oil return pipeline, the oil engine unloading.
For cooperating the present invention, the hydraulic oil motivation need be done corresponding change: through hole (17) and annular oil-return groove (19) (see figure 2) corresponding with feather valve oil-guiding block (3) chamber (13) and chamber (12) are set respectively on its end cylinder cylinder bottom, and annular oil-return groove (19) also need be connected with another chamber and the system oil return system with the hydraulic oil motivation.
Claims (9)
1. fast discharging device that is used for the hydraulic oil motivation, it comprises a control unit (1) and a feather valve (2) that places hydraulic oil motivation one side, it is characterized in that: described feather valve (2) is installed on cylinder (18) outside at the bottom of the oil engine on the hydraulic oil motivation axial direction.
2. according to the described fast discharging device that is used for the hydraulic oil motivation of claim 1, it is characterized in that: the critical piece of described feather valve (2) has oil-guiding block (3), unloads load plate (4).
3. according to the described fast discharging device that is used for the hydraulic oil motivation of claim 2, it is characterized in that: oil-guiding block (3) and unload ring packing plane (10), the face (11) that two correspondences and consistent size are respectively arranged on load plate (4) fitting surface.
4. according to the described fast discharging device that is used for the hydraulic oil motivation of claim 3, it is characterized in that: 98 millimeters of the external diameters of described planar annular (10), 82 millimeters of internal diameters are the sealing surfaces between active chamber (13) and the oil back chamber (12).
5. according to the described fast discharging device that is used for the hydraulic oil motivation of claim 3, it is characterized in that: 175 millimeters of the external diameters of described planar annular (11), 159 millimeters of internal diameters are the sealing surfaces between chamber (14) and the oil back chamber (12).
6. according to the described fast discharging device that is used for the hydraulic oil motivation of claim 2, it is characterized in that: oil-guiding block (3) upward is provided with an oblique through hole (21) and connects oil pocket (15) apart from a distance, center.
7. according to the described fast discharging device that is used for the hydraulic oil motivation of claim 6, it is characterized in that: oil-guiding block (3) with unload load plate (4) junction plane on 96 millimeters places are provided with an oblique through hole (21) and are connected oil pocket (15) apart from the center.
8. make the described method that is used for the fast discharging device of hydraulic oil motivation of claim 1 for one kind, it is characterized in that: take necessary technological equipment and technological measure to guarantee the machining accuracy of unloading two planar annulars on load plate (4) and oil-guiding block (3) fitting surface, and implement repeatedly stabilization, make the area of contact of unloading load plate (4) and oil-guiding block (3) fitting surface greater than 80%, and can keep good sealing effect for a long time.
9. be used for the method for the fast discharging device of hydraulic oil motivation according to the described manufacturing of claim 8, it is characterized in that: make the machining accuracy of oil-guiding block (3) fitting surface be: planeness is less than 0.005 millimeter.Guarantee 0.8 grade of surface roughness during the two planar annular preliminary working of unloading load plate (4) fitting surface; Coplane degree is less than 0.03 millimeter.Last oil-guiding block and unload the fitting surface of planting dish and implement facing-up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102051182A CN101769276B (en) | 2008-12-30 | 2008-12-30 | Quick unloading device for hydraulic servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102051182A CN101769276B (en) | 2008-12-30 | 2008-12-30 | Quick unloading device for hydraulic servomotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101769276A true CN101769276A (en) | 2010-07-07 |
| CN101769276B CN101769276B (en) | 2012-05-23 |
Family
ID=42502324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102051182A Expired - Fee Related CN101769276B (en) | 2008-12-30 | 2008-12-30 | Quick unloading device for hydraulic servomotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101769276B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351014A (en) * | 2015-12-11 | 2016-02-24 | 上海新力机器厂 | Novel disc type unloading valve of EH oil system oil engine of steam turbine |
| CN110260028A (en) * | 2019-06-24 | 2019-09-20 | 中国神华煤制油化工有限公司 | A kind of anti-leak oil motor |
-
2008
- 2008-12-30 CN CN2008102051182A patent/CN101769276B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351014A (en) * | 2015-12-11 | 2016-02-24 | 上海新力机器厂 | Novel disc type unloading valve of EH oil system oil engine of steam turbine |
| CN110260028A (en) * | 2019-06-24 | 2019-09-20 | 中国神华煤制油化工有限公司 | A kind of anti-leak oil motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101769276B (en) | 2012-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206111487U (en) | Compressor valve organizes assembly structure | |
| CN101769276B (en) | Quick unloading device for hydraulic servomotor | |
| CN201778850U (en) | Oil pump for automobile engine | |
| CN102671791B (en) | Anti-explosion ball head | |
| CN202039871U (en) | Safety valve | |
| CN102852708B (en) | Hydraulic motor with flushing function | |
| CN101865003B (en) | Automobile engine oil pump | |
| CN202812354U (en) | Thread plug-in type pressure-reducing valve | |
| CN201386574Y (en) | Fast unloading device of hydraulic oil motor | |
| CN204344448U (en) | Combination brake switch and proporting exhausting type high pressure split water injection pump | |
| CN104500477B (en) | Pressure-releasing type fluid-control one-way logical valve | |
| CN205244515U (en) | Diesel engine is two -stage voltage limiting valve for high pressure common rail | |
| CN102661396A (en) | Novel valve core connecting sleeve mechanism for stop valve | |
| CN102979653B (en) | Marine oil pressing valve matching part | |
| CN105317602A (en) | External fuel pump assembly | |
| CN111412374A (en) | Valve head structure of lubricating oil pressure regulating valve | |
| CN213117616U (en) | SMC mould oil circuit self-locking valve | |
| CN205896656U (en) | Oil pump of relief valve is equipped with | |
| CN203162139U (en) | High-pressure sealing plug | |
| CN201517645U (en) | Dual-purpose one-way valve | |
| CN202203193U (en) | Multifunctional gear pump for band sawing machine | |
| CN103727079A (en) | High-pressure small-drift-diameter high-precision slide-valve-type safety and overflow valve | |
| WO2024145885A1 (en) | Fluid end and fracturing pump | |
| CN210234938U (en) | Brake master cylinder fixing structure | |
| CN212617560U (en) | Feeding system of longitudinal pump body of engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: XINLI MACHINE PLANT, SHANGHAI Free format text: FORMER OWNER: SHANGHAI AEROSPACE HYDRAULIC CONTROL SYSTEM CO., LTD. Effective date: 20130513 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200125 PUDONG NEW AREA, SHANGHAI TO: 201112 MINHANG, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130513 Address after: 201112 No. 3392, Ting Lou Road, Shanghai, Minhang District Patentee after: SHANGHAI XINLI MACHINE PLANT Address before: 200125 Dongfang Road, Shanghai, Pudong New Area, No. 3333 Patentee before: Shanghai Aerospace Hydraulic Control System Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: No. 540 Pusan Road, Pudong New Area, Shanghai, 200125 Patentee after: SHANGHAI XINLI MACHINERY FACTORY CO.,LTD. Address before: 201112 No. 3392, Ting Lou Road, Shanghai, Minhang District Patentee before: SHANGHAI XINLI MACHINE PLANT |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20211230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |