CN203099280U - Wind power lubricating system - Google Patents
Wind power lubricating system Download PDFInfo
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- CN203099280U CN203099280U CN 201220660325 CN201220660325U CN203099280U CN 203099280 U CN203099280 U CN 203099280U CN 201220660325 CN201220660325 CN 201220660325 CN 201220660325 U CN201220660325 U CN 201220660325U CN 203099280 U CN203099280 U CN 203099280U
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- piston
- returnning spring
- pressure
- wind
- end cap
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Abstract
The utility model provides a wind power lubricating system, which comprises a two-speed motor, an electric oil pump, a pressure detection contact point, a check valve, a filter device, a temperature control valve, a wind cooler, a pressure sensor and a pressure snubber, wherein the pressure snubber is connected between the outlet of the electric oil pump and a filter interface and is a piston type hydraulic cylinder without a piston rod; one side cavity of a piston is communicated with a pipeline of the outlet of the electric oil pump, and the other side cavity of the piston is internally provided with a reset spring; and the cavity provided with the reset spring is communicated with a gearbox interface or an oil box. The wind power lubricating system has the beneficial effects that a pressure impact peak value produced during the low temperature start of the wind power lubricating system can be effectively reduced, the fluctuation of system pressure under low temperature and normal temperature is absorbed, and safety use performance of equipment is improved; the pressure snubber is simple in structure, is convenient to mount and is suitable for serialized volume production; and the workspace is large, so the wind power lubricating system cannot be influenced by environmental temperature.
Description
Technical field
The utility model belongs to the pressure buffer of hydraulic system, relates in particular to the pressure buffer that the wind-powered electricity generation lubrication system is used.
Background technique
The wind power plant operating ambient temperature alters a great deal, ambient temperature can reach-30 ℃ during low-temperature working, wind-powered electricity generation gear-box oil cooling lubrication system also usually can be in about-10 ℃ startups of oil temperature, and this moment, oil body was very high, also can be very high even the electric oil pump low speed start moves its pressure that starts moment, can reach usually about 2MPa, such instantaneous pressure impact meeting brings harm to lubrication system, the rate of fault of increase system has reduced the safety reliability of lubrication system.
At present, the wind-powered electricity generation lubrication system of domestic use comprises that the phenomenon that the lubrication system generation oil pump motor, coupling of many imports etc. damage is more, and this and cold-starting lubrication system oil pump and compression shock have much relations.Therefore, to reduce the pressure buffer that instantaneous pressure impacts be the technical barrier that related domain needs to be resolved hurrily in development.
Summary of the invention
The purpose of this utility model is a kind of wind-powered electricity generation lubrication system pressure buffer of development, instantaneous pressure when the minimizing electric oil pump starts at low temperatures impacts, reduce the peak-peak of impacting, reduce the rate of fault that reduces lubrication system, improve Security, reliability and the stationarity of lubrication system works.
The technical solution of the utility model is: a kind of wind-powered electricity generation lubrication system, comprise two-speed motor, electric oil pump, the Pressure testing contact, one-way valve, filter for installation, heat-operated valve, forced air cooler and pressure transducer, connection between two-speed motor and the electric oil pump, electric oil pump and one-way valve, connect by pipeline between filter for installation and the forced air cooler, the Pressure testing contact is connected with pressure-detecting device, be connected with heat-operated valve between the entrance and exit of forced air cooler, be connected with pressure transducer on the forced air cooler, it is characterized in that described wind-powered electricity generation lubrication system also comprises pressure buffer, pressure buffer is connected between electric oil pump outlet and the gear-box interface with pipeline, described pressure buffer is the piston-type hydraulic cylinder of piston-rodless, one side chamber of piston-type hydraulic cylinder piston is communicated with the electric oil pump export pipeline, opposite side is equipped with Returnning spring in the chamber, and the chamber that Returnning spring is housed is communicated with the gear-box interface.
Wind-powered electricity generation lubrication system described in the utility model, it is characterized in that described pressure buffer comprises housing, piston in combination seal ring, piston, Returnning spring, end bracket enclosed circle and end cap, described housing is a tubular, and the bottom centre position place has the connection mouth that is connected with the electric oil pump export pipeline of wind-powered electricity generation lubrication system; The inner center portion of described end cap has a shape platform, the center hole that connects two ends is opened in axle shape platform center portion, the mouth of center hole end cap outside is and the gear-box interface connection mouth of wind-powered electricity generation lubrication system that end bracket enclosed is connected the housing opening end, has draining mechanism on the axle shape platform in the end cap; Described piston is not with piston rod, piston is installed in the housing by the piston in combination seal ring, and the initial position that piston is installed is in the bottom of housing, and described Returnning spring is installed in the housing between piston and the end cap, Returnning spring one end and piston end surface connect, and the other end and end cap connect.
Wind-powered electricity generation lubrication system described in the utility model, it is characterized in that described piston is provided with the stroke pin, described stroke pin central position has the hole that connects both ends of the surface, stroke pin external diameter is identical with axle shape platform external diameter in the end cap, the stroke pin is fixedly mounted on piston and Returnning spring and connects in the pin-and-hole of center of face, distance is s between the inner axle of end face and the end cap shape you face, 0＜s≤p* π * d
2/ 4k-S
0, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system in the formula, is used for buffering, and the p value is got 0.7MPa～2.8MPa, and d is a piston diameter, and k is the rigidity of Returnning spring, S
0Be Returnning spring assembling back initial compression amount.
Wind-powered electricity generation lubrication system described in the utility model, the guidance mode that it is characterized in that described Returnning spring is outer guiding or interior guiding, total backlash is 0.8mm～1.0mm between excircle that described outer guiding is a Returnning spring and the inner walls, by Returnning spring excircle and inner walls guiding; Guiding is on the axle shape platform guide sleeve to be housed in the end cap in described, guide sleeve is sleeved on the interior axle of the end cap shape platform, the guide sleeve front end stretches in the stroke pin pin-and-hole of piston, circle is sleeved on the stroke pin in the guide sleeve, the guide sleeve ear end face abuts against on the end cap, between the stroke pin pin-and-hole bottom surface of front-end face and piston the s distance is arranged, 0＜s≤p* π * d
2/ 4k-S
0, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system in the formula, is used for buffering, and the p value is 0.7MPa～2.8MPa, and d is a piston diameter, and k is the rigidity of Returnning spring, S
0Be Returnning spring assembling back initial compression amount, Returnning spring places outside the guide sleeve, and total backlash is 0.5mm～0.6mm between the inner circumference of Returnning spring and the guide sleeve excircle, by Returnning spring inner circumference and guide sleeve excircle guiding.
Wind-powered electricity generation lubrication system described in the utility model is characterized in that the draining mechanism on the axle shape platform is draining hole or drain pan in the described end cap, and draining hole or drain pan communicate with the center hole of axle.
Wind-powered electricity generation lubrication system described in the utility model is characterized in that described Returnning spring is a belleville spring.
During use, the connection mouth of housing bottom is connected with the electric oil pump export pipeline of wind-powered electricity generation lubrication system, the connection mouth on the end cap is connected with the gear-box interface of wind-powered electricity generation lubrication system.The wind-powered electricity generation lubrication system is when cold-starting moves, when the electric oil pump outlet pressure reaches 0.7MPa when above, promptly as the active force p* π * d of oil pump outlet pressure p on wind-powered electricity generation lubrication system pressure buffer piston 4
2/ 4 ﹥ k(S
0+ s) time, a spot of lubricant oil can enter wind-powered electricity generation lubrication system pressure buffer and promote piston 4 and move to right, and the p stroke of big piston 4 more is big more.As p* π * d
2/ 4 ﹤ k (S
0+ s) time, the stored energy of pressure spring will discharge because piston 4 moves to right, and piston 4 pressure oil that will enter that moves to left is sent back in the system.In this course, wind-powered electricity generation lubrication system pressure buffer has absorbed the spike pressure of system's moment, reduces the peak value of system pressure.
The beneficial effects of the utility model are:
1. the compression shock peak value when this system effectively reduces wind-powered electricity generation lubrication system cold-starting absorbs the fluctuation of system pressure under low temperature and the normal temperature, has improved the safe application performance of equipment;
2. the pressure buffer operation interval is big, and the compensator or trimmer pressure action range can reach between 0.7MPa～2.8MPa, maximum service pressure 5MPa.
3. pressure buffer is not subjected to the influence of ambient temperature;
4. pressure buffer is simple in structure, is convenient to install, and is fit to seriation and produces in batches;
5. pressure buffer takes into full account oil draining function, and flexible movements are reliable;
6. pressure buffer housing and end cap are fit to adopt cast steel, are convenient to seriation and batch process;
7. low temperature material is adopted in the pressure buffer sealing, and the existence temperature reaches-45 ℃～120 ℃, and serviceability temperature is-30 ℃～100 ℃.
Description of drawings
Fig. 1 is a wind-powered electricity generation lubrication system schematic representation
Fig. 2 is the pressure buffer structural representation
Fig. 3 is the pressure buffer structural representation of the outer guiding of Returnning spring
Fig. 4 is the pressure buffer structural representation of guiding in the Returnning spring
The drawing reference numeral explanation:
1. housing 2. seal rings 3. piston in combination seal rings 4. pistons 5. Returnning springs 6. end bracket enclosed circles 7. end caps 8. two-speed motors 9. electric oil pumps 10. Pressure testing contacts 11. one-way valves 12. sebific ducts 13. filter for installations 14. heat-operated valves 15. forced air coolers 16. pressure transducers 17. wind-powered electricity generation lubrication system pressure buffers 18. stroke pins 19. guide sleeves
Embodiment
The utility model is described in further detail below in conjunction with the embodiment of accompanying drawing.
The wind-powered electricity generation lubrication system, comprise two-speed motor 8, electric oil pump 9, Pressure testing contact 10, one-way valve 11, filter for installation 13, heat-operated valve 14, forced air cooler 15, pressure transducer 16 and pressure buffer 17, be electrically connected between two-speed motor 8 and the electric oil pump 9, electric oil pump 9 and one-way valve 11, filter for installation 13, be connected by pipeline with forced air cooler 15, Pressure testing contact 10 is connected with pressure-detecting device, be connected with heat-operated valve 14 between the entrance and exit of forced air cooler 15, be connected with pressure transducer 16 on the forced air cooler 15, pressure buffer 17 is piston-type hydraulic cylinders, the oil pocket of piston-type hydraulic cylinder is communicated with electric oil pump 9 export pipelines, and the spring chamber of piston-type hydraulic cylinder is communicated with the gear-box interface.
Pressure buffer comprises the piston-type hydraulic cylinder of being made up of housing 1, seal ring 2, piston in combination seal ring 3, piston 4, Returnning spring 5, end bracket enclosed circle 6 and end cap 7, housing 1 is a tubular, and bottom centre position has the connection mouth that is connected with the electric oil pump export pipeline of wind-powered electricity generation lubrication system; End cap 7 inner center portions have a shape platform, axle shape platform center portion is established and is connected the two ends center hole, the mouth of the end cap of center hole outside is the gear-box interface connection mouth with the wind-powered electricity generation lubrication system, end cap 7 is sealedly connected on housing 1 opening end, have draining mechanism on the shape platform in the end cap 7, draining mechanism is draining hole or drain pan, and draining hole or drain pan communicate with the center hole of axle shape platform.Piston 4 piston-rodless, piston 4 is installed in the housing 1 by piston in combination seal ring 3, and the initial position that piston 4 is installed is at housing bottom, and Returnning spring 5 is installed in the housing between piston 4 and the end cap 7, Returnning spring 5 one ends and piston 4 end faces connect, and the other end and end cap 7 connect.
Piston is provided with the stroke pin identical with embodiment 1.On the axle shape platform guide sleeve 19 is housed in the end cap, guide sleeve 19 is sleeved on the interior axle of the end cap shape platform, guide sleeve 19 front ends stretch in stroke pin 18 pin-and-holes of piston 4, circle is enclosed within on the stroke pin in the guide sleeve 19, guide sleeve 19 ear end faces abut against on the end cap 7, between the stroke pin pin-and-hole bottom surface of front-end face and piston the s distance is arranged, 0＜s≤p* π * d
2/ 4k-S
0, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system in the formula, and the p value is 0.7MPa～2.8MPa, and d is a piston diameter, and k is the rigidity of Returnning spring, S
0Be Returnning spring assembling back initial compression amount, Returnning spring 5 places outside the guide sleeve 19.Returnning spring 5 is butterfly springs, and total backlash is 0.5mm～0.6mm between butterfly spring inner circumference and the guide sleeve excircle, by Returnning spring inner circumference and guide sleeve excircle guiding.
When the wind-powered electricity generation lubrication system when cold-starting moves, two-speed motor 8 is with low-speed running and drive electric oil pump 9 pressure oil output, because the low-temperature condition oil body is very high, system pressure is subjected to the influence of dampings such as filter for installation 13 and fuel feeding nozzle, electric oil pump 9 outlet pressures sharply rise and will open one-way valve 11, but the negotiability of one-way valve 11 under high viscosity is limited and the opening time correspondingly lags behind to some extent, so system pressure moment can be very high.When pump discharge pressure reaches 0.7MPa when above, promptly as the active force p* π * d of oil pump outlet pressure p on wind-powered electricity generation lubrication system pressure buffer piston 4
2/ 4 ﹥ k(S
0+ s) time, a spot of lubricant oil can enter pressure buffer and promote piston 4 and move to right, and the p stroke of big piston 4 more is big more.After the pressure of lubrication system reduces, i.e. p* π * d
2/ 4 ﹤ k (S
0+ s) time, the stored energy of pressure spring will discharge because piston 4 moves to right, and piston 4 be moved to left a part of pressure oil is sent back in the system.Pressure buffer has absorbed the spike pressure of system's moment in this process, reduce the peak value of system pressure, and can absorb the pressure pulsation that oil pump produces, can effectively reduce wind-powered electricity generation lubrication system breakdown rate, improve the stationarity and the safety reliability of equipment operation under low temperature and the normal temperature state.
Claims (6)
1. wind-powered electricity generation lubrication system, comprise two-speed motor (8), electric oil pump (9), Pressure testing contact (10), one-way valve (11), filter for installation (13), heat-operated valve (14), forced air cooler (15), pressure transducer (16) and gear-box, be electrically connected between two-speed motor (8) and the electric oil pump (9), electric oil pump (9) and one-way valve (11), connect by pipeline between filter for installation (13) and the forced air cooler (15), Pressure testing contact (10) is connected with pressure-detecting device, be connected with heat-operated valve (14) between the entrance and exit of forced air cooler (15), be connected with pressure transducer (16) on the forced air cooler (15), it is characterized in that described wind-powered electricity generation lubrication system also comprises pressure buffer (17), pressure buffer (17) is connected between electric oil pump (9) outlet and gear-box interface or electric oil pump (9) outlet and the fuel tank interface, described pressure buffer (17) is the piston-type hydraulic cylinder of piston-rodless, one side chamber of piston-type hydraulic cylinder piston is communicated with electric oil pump (9) export pipeline, Returnning spring (5) is housed in the opposite side chamber, and the chamber that Returnning spring is housed is communicated with gear-box or fuel tank interface.
2. according to the described a kind of wind-powered electricity generation lubrication system of claim 1, it is characterized in that described pressure buffer comprises housing (1), piston in combination seal ring (3), piston (4), Returnning spring (5), end bracket enclosed circle (6) and end cap (7), described housing (1) is a tubular, and the bottom centre position place has the connection mouth that is connected with the electric oil pump export pipeline of wind-powered electricity generation lubrication system; The inner center portion of described end cap (7) has a shape platform, the center hole that connects two ends is opened in axle shape platform center portion, the mouth of center hole end cap outside is the gear-box interface connection mouth with the wind-powered electricity generation lubrication system, end cap (7) is sealedly connected on housing (1) opening end, has draining mechanism on the axle shape platform in the end cap (7); Described piston (4) is not with piston rod, piston (4) is installed in the housing by piston in combination seal ring (3), the initial position that piston is installed is in the bottom of housing, described Returnning spring (5) is installed in the housing (1) between piston (4) and the end cap (7), Returnning spring (5) one ends and piston end surface connect, and the other end and end cap connect.
3. according to the described a kind of wind-powered electricity generation lubrication system of claim 2, it is characterized in that described piston (4) is provided with stroke pin (18), described stroke pin (18) central position has the hole that connects both ends of the surface, stroke pin external diameter is identical with axle shape platform external diameter in the end cap, stroke pin (18) is fixedly mounted on piston (4) and connects in the pin-and-hole of face center with Returnning spring (5), distance is s between the inner axle of end face and end cap (7) the shape you face, 0＜s≤p* π * d
2/ 4k-S
0, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system in the formula, and the p value is got 0.7MPa～2.8MPa, and d is piston (a 4) diameter, and k is the rigidity of Returnning spring (5), S
0Be Returnning spring (5) assembling back initial compression amount.
4. according to the described a kind of wind-powered electricity generation lubrication system of claim 3, the guidance mode that it is characterized in that described Returnning spring (5) is outer guiding or interior guiding, excircle and housing (1) inwall that described outer guiding is a Returnning spring (5) keep 0.8mm～1.0mm gap, and promptly the Returnning spring excircle is led by inner walls; Guiding is on the axle shape platform guide sleeve (19) to be housed in the end cap in described, guide sleeve (19) is sleeved on the interior axle of end cap (7) the shape platform, guide sleeve (19) front end stretches in the stroke pin pin-and-hole of piston (4), circle is sleeved on the stroke pin (18) in the guide sleeve, guide sleeve (19) ear end face abuts against on the end cap (7), between the stroke pin pin-and-hole bottom surface of front-end face and piston the s distance is arranged, 0＜s≤p* π * d
2/ 4k-S
0, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system in the formula, and the p value is got 0.7MPa～2.8MPa, and d is piston (a 4) diameter, and k is the rigidity of Returnning spring (5), S
0Be Returnning spring (5) assembling back initial compression amount, Returnning spring (5) places outside the guide sleeve (20), the inner circumference of Returnning spring (5) and guide sleeve (19) excircle keep 0.5mm～0.6mm gap, by guide sleeve excircle and Returnning spring inner circumference guiding.
5. according to the described a kind of wind-powered electricity generation lubrication system of claim 2, it is characterized in that the draining mechanism on the axle shape platform is draining hole or drain pan in the described end cap (7), draining hole or drain pan communicate with the center hole of axle.
6. according to the described a kind of wind-powered electricity generation lubrication system of claim 2, it is characterized in that described Returnning spring (5) is a belleville spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660325 CN203099280U (en) | 2012-12-04 | 2012-12-04 | Wind power lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660325 CN203099280U (en) | 2012-12-04 | 2012-12-04 | Wind power lubricating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203099280U true CN203099280U (en) | 2013-07-31 |
Family
ID=48850683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220660325 Withdrawn - After Issue CN203099280U (en) | 2012-12-04 | 2012-12-04 | Wind power lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203099280U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016934A (en) * | 2012-12-04 | 2013-04-03 | 大连华锐重工集团股份有限公司 | Wind-powered lubrication system with pressure buffer |
| CN107076269A (en) * | 2014-11-21 | 2017-08-18 | 谐波传动系统有限公司 | Wave gear device |
| CN112699604A (en) * | 2020-12-29 | 2021-04-23 | 成都飞航智云科技有限公司 | Fault modeling and diagnosis method based on neural network algorithm |
-
2012
- 2012-12-04 CN CN 201220660325 patent/CN203099280U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016934A (en) * | 2012-12-04 | 2013-04-03 | 大连华锐重工集团股份有限公司 | Wind-powered lubrication system with pressure buffer |
| CN103016934B (en) * | 2012-12-04 | 2015-06-10 | 大连华锐重工集团股份有限公司 | Wind-powered lubrication system with pressure buffer |
| CN107076269A (en) * | 2014-11-21 | 2017-08-18 | 谐波传动系统有限公司 | Wave gear device |
| CN107076269B (en) * | 2014-11-21 | 2019-04-05 | 谐波传动系统有限公司 | Wave gear device |
| CN112699604A (en) * | 2020-12-29 | 2021-04-23 | 成都飞航智云科技有限公司 | Fault modeling and diagnosis method based on neural network algorithm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150610 |
|
| RGAV | Abandon patent right to avoid regrant |