CN203847676U - Breather of reduction gearbox - Google Patents
Breather of reduction gearbox Download PDFInfo
- Publication number
- CN203847676U CN203847676U CN201420256216.XU CN201420256216U CN203847676U CN 203847676 U CN203847676 U CN 203847676U CN 201420256216 U CN201420256216 U CN 201420256216U CN 203847676 U CN203847676 U CN 203847676U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- speed reducer
- diameter pipe
- pipe section
- elbow
- 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
Links
- 230000009467 reduction Effects 0.000 title abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 40
- 244000144985 peep Species 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 2
- 238000007689 inspection Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 239000006260 foam Substances 0.000 description 15
- 239000003570 air Substances 0.000 description 12
- 239000003595 mist Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 230000000241 respiratory effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- -1 when serious Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The utility model relates to a breather of a reduction gearbox. The breather comprises a tee joint, an elbow, a filter screen ball, a spiral piece centrifugal separator and a top cover. One end of the straight tube of the tee joint is connected with the reduction gearbox through a flange, another end of the straight tube of the tee joint is an inspection hole and is blocked by a nut and a plug screw, and the third end of the straight tube of the tee joint is connected with one end of the elbow. The pipe section where the other end of the elbow is located is divided into a small-diameter pipe section, a gradual expanding section for decelerating gas flow and a large-diameter pipe section in sequence. The spiral piece centrifugal separator is arranged in the small-diameter pipe section. The filter screen ball is placed in the large-diameter pipe section. An annular pore plate is connected with the lower portion in the top cover. The inner side of the annular pore plate is provided with internal threads which are connected with external threads on an upper opening of the large-diameter pipe section. By the adoption of the breather, gas with oil in the reduction gearbox is subjected to spiral centrifugal separation, deceleration and filtering separation by the filter screen ball after being breathed out; when external air is sucked into the reduction gearbox, dust in the air is separated through gas steering and filtered out by the filter screen ball, so that the air in the reduction gearbox does not carry along the dust. The breather has the advantages of being simple in structure, small in resistance, smooth in breathing and the like.
Description
Technical field
The utility model relates to a kind of speed reducer breathing equipment, particularly relates to the resuscitation apparatus match equipment of relatively large speed reducer.
Background technique
Gear reduction box is widely used in the middle of mechanical transmission.For the inside and outside differential pressure of balance speed reducer, the expanded by heating gas while discharging running in speed reducer or casing internal air pressure suck outside air while lowering, essential SCBA---speed reducer resuscitation apparatus.Speed reducer resuscitation apparatus balance the inside and outside air pressure of deceleration box, when discharging heated gas, the mist of oil that can carry gas, oil droplet carry out separation or filtration, and the lubricant oil under separation or filtration is back to speed reducer oil storage pool, make the gas of discharging be with less lubricant oil as far as possible; When sucking extraneous gas, the dust in can filtered air.
Although speed reducer resuscitation apparatus is an annex of speed reducer, its performance quality also can directly affect the performance of speed reducer own.It shown in Fig. 1, Fig. 2, is exactly a kind of old-fashioned speed reducer resuscitation apparatus, by flange 2 and flange gasket 1 and speed reducer, be connected and fixed, by threeway 3, elbow 7, connect resuscitation apparatus critical piece, nut 4, plug screw 6 and drain plug gasket 5 form peep hole, are convenient to check and abnormal conditions processing.Resuscitation apparatus Main Function parts are labyrinth pipe nipples 8, at the interior 4 groups of little filter screens that filling respectively two filter screen packing rings 9 and two little filter screens 10 of interior 4 orifice plate boxes 12 of cylindrical shell 11, on be perpendicular labyrinth lower plate 13 and perpendicular labyrinth upper plate 14, large filter screen 16 is laid in perpendicular labyrinth upper plate 14, top cover 18 screws, push down large filter screen trim ring 17, fix all filter screens and assembly parts, ring-shaped orifice plate 15 is air outlet or suction ports of resuscitation apparatus.In practical implementation, such resuscitation apparatus easily sprays lubricant oil, forms lubricant oil and leaks in a large number, waste oil product, pollution working environment; And unsmooth breath, cause the sealing position of reduction gearbox output shaft to suck band dirt air, when serious, dust pollution lubricant oil even makes speed reducer locking turn round.Particularly when the bull gear reducer as coal pulverizer rotation dynamic separator, output shaft is for larger hollow shaft is through speed reducer gearwheel center portion, in the middle of hollow shaft, also have major diameter fuel dropping pipe to pass through, because the sealing surface of output hollow shaft is larger, the harmful effect that the defect of this resuscitation apparatus is brought is more outstanding.
Analyze the defect of this resuscitation apparatus, although first labyrinth pipe nipple 8 is comprised of 5 trifles, its passage section is little, and when gas passes through, flow velocity is high, and the fluid adhering on horizontal maze board can not reflux.The little filter screen of its two, 4 orifice plates, 12 box group has 8 little filter screens, but the percent opening of its orifice plate is lower and difficult raising, causes gas high flow rate, and filter screen can not filter oil droplet mist of oil.Its three, it is limited that perpendicular labyrinth lower plate 13 and perpendicular labyrinth upper plate 14 structures are doomed its percent opening, passage section is little, airspeed is high, strong to the carrying of mist of oil, oil droplet, traction force, loses centrifugation.The whole shortcoming of this resuscitation apparatus is: complex structure, processing trouble; Passage section is little, and gas flow rate is high, and mist of oil, the effect of oil droplet separating and filtering are little; Respiratory resistance is large, causes other sealing surface generation breathing phenomenon of speed reducer.
Summary of the invention
The purpose of this utility model is to provide a kind of speed reducer resuscitation apparatus, with solve resuscitation apparatus to lubricating oil separation, filter and reduce the technical problems such as flow resistance.
In order to realize foregoing invention object, the technological scheme that the utility model adopts is as follows:
A speed reducer resuscitation apparatus, comprises threeway, elbow, filter screen group, screw piece centrifugal separator and top cover; Straight tube one end of described threeway is connected with speed reducer by flange, the other end is peep hole, by nut and plug screw shutoff, the 3rd end is connected with described elbow one end, and the pipeline section at described elbow the other end place is followed successively by path pipeline section, reduces gradually expanding section and the large-diameter pipe section of airspeed; In path pipeline section, be provided with screw piece centrifugal separator, in large-diameter pipe section, place filter screen group; In described top cover, bottom connects ring-shaped orifice plate, and this ring-shaped orifice plate inner side is internal thread, connects with the upper interface external thread of large-diameter pipe section.
The screw piece that screw piece centrifugal separator is set in path pipeline section is weldingly fixed in the center stand column and fixed cross beam that the stainless reinforcing bar of minor diameter does, and fixed cross beam two ends are weldingly fixed on the inwall of path pipeline section.
Large-diameter pipe pars infrasegmentalis welding screen support gusset, places filter screen group on it; Filter screen group is stainless steel filament woven mesh agglomerate.
The upper end of ring-shaped orifice plate is welded with two minor diameter positioning beam, and positioning beam is located when screwing for top cover, stops the displacement of filter screen group under gas shock simultaneously.
Compared with prior art, its advantage is the utility model: simple in structure, make easily; Resistance is less, breathe smooth and easy, reduced from other sealing surface of speed reducer, breathe may; Technology is reasonable, successful.For the performance of speed reducer mass action provides effective assurance.After silk screen foam removal, gas is oil-containing foam not substantially.Right >=3 μ m-5 μ m oil foams, arresting efficiency reaches 98%-99.8%, and pressure drop, resistance are less.
Accompanying drawing explanation
Fig. 1 is original respiratory organ structure figure.
Fig. 2 is original resuscitation apparatus head detail drawing.
In figure: 1-flange gasket, 2-flange, 3-three-way pipe, 4-nut, 5-drain plug gasket, 6-plug screw, 7-elbow, 8-labyrinth pipe nipple, 9-filter screen packing ring, the little filter screen of 10-, 11-cylindrical shell, 12-orifice plate box, the perpendicular labyrinth of 13-lower plate, 14-perpendicular labyrinth working, 15-ring-shaped orifice plate, the large filter screen of 16-, the large filter screen trim ring of 17-, 18-top cover.
Fig. 3 is the utility model respiratory organ structure schematic diagram.
In figure: 21-flange gasket, 22-flange, 23-three-way pipe, 24-nut, 25-drain plug gasket, 26-plug screw, 27-elbow, 28-path pipeline section, 29-screw piece, 210-screw piece newel, 211-fixed cross beam, 212-gradually expanding section, 213-screen support gusset, 214-large-diameter pipe section, 215-filter screen, 216-ring-shaped orifice plate, 217-top cover, 218-positioning beam.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The structure of a kind of speed reducer resuscitation apparatus described in the utility model is referring to Fig. 3, and wherein flange 22 and flange gasket 21 and speed reducer are connected and fixed.By threeway 23, elbow 27, form resuscitation apparatus critical piece.Nut 24, plug screw 26 and drain plug gasket 25 form the plugging structure of peep hole.Screw piece 29 centrifugal separators that corrosion resistant plate is made are set in path pipeline section 28, screw piece 29 is weldingly fixed in the center stand column 210 and fixed cross beam 211 that the stainless reinforcing bar of minor diameter does, fixed cross beam 211 two ends are weldingly fixed on the inwall of path pipeline section 28, are connecting afterwards gradually expanding section 212 to reduce airspeed; The rear connection large-diameter pipe of gradually expanding section 212 section 214, large-diameter pipe section 214 bottom welding screen support gussets 213, on it, place filter screen group 215, the interior bottom of top cover 217 connects ring-shaped orifice plate 216, ring-shaped orifice plate 216 inner sides are internal thread, connect with the upper interface external thread of large-diameter pipe section 214, the upper end of ring-shaped orifice plate 216 is welded with two minor diameter stainless steel positioning beam 218.Positioning beam 218 is location when screwing for top cover 217, rolls into a ball 215 upper ends offset with filter screen simultaneously, stops the displacement of filter screen group 215 under gas shock.
When speed reducer running inside temperature raises, internal pressure is during higher than external pressure, outwards exhale, internal gas is by adpting flange 22, threeway 23, elbow 27, enter screw piece 29 centrifugal separators that arrange in path pipeline section 28, air-flow is under the guide functions of spinning disk on screw, due to the centrifugal force producing in flow rotation process, make the part oil droplet in air-flow be thrown toward tube wall or screw piece, owing to being attached to lubricated oil surface tension and the wettability of tube wall or screw piece, Action of Gravity Field, plane of inclination along screw piece flows downward, from screw piece bottom, splash into elbow, along three-way tube wall, flow back to speed reducer.In spiral separation not separated fall compared with small particle diameter oil droplet, oily foam, with air-flow, continue to rise, after flaring pipeline section 212, airspeed reduces, and has weakened air-flow to the carrying of oil droplet, oily foam, traction capacity, when air-flow rolls into a ball 215 through filter screen, compared with oily foam, the mist of oil of small particle diameter, by silk screen, to be caught, oil droplet is assembled increase in silk screen, enough large oil droplets are because Action of Gravity Field falls to circling round in flow, again with spinning disk surface helical flow downwards, then fall into elbow, along three-way tube wall, flow back to speed reducer.Breathe out not with the gas of mist of oil, oily foam.
When speed reducer internal pressure is low, can suck ambient air outside from resuscitation apparatus; from the circumferential gas opening of resuscitation apparatus ring-shaped orifice plate 216; enter from the bottom up the space of top cover inside; grit larger in air can be separated in the steering procedure of air-flow; can not enter in resuscitation apparatus; compared with little grit, can by silk screen agglomerate 215, be filtered and can not enter speed reducer; guaranteed that speed reducer sucks cleaner air; cleaner air passes through silk screen agglomerate 215 each parts of resuscitation apparatus below again, enters speed reducer inside.
First the utility model adopts the centrifugation of eddy flow chip gas-liquid, and flow area is relatively large, and resistance is little; Air-flow rotates rising under screw piece guide functions, and oil droplet is very easily separated attached wall under centrifugal action; Then along the screw piece angle having a down dip, flow back to resuscitation apparatus lower inlet.Air-flow after spiral separation expands and slows down at gradually expanding section, makes airspeed enter filter screen group in OK range.Filter screen group 215 is stainless steel filament net braiding agglomerate.When the gas with oily foam rises, oily foam and silk screen filament collide and are attached in filament surfaces, and the diffusion of filament surfaces oil foam, gravitational settling, repeatedly accumulation make oily foam form larger fluid and drip the contact that interweaves that flows to filament along filament.The surface tension of the wettability of filament, capillarity and fluid, drips fluid increasing, until the fluid of assembling drip the large gravity to self surpass the climbing power of gas and fluid capillary make a concerted effort time, oil droplet is separated whereabouts from filament just.After silk screen foam removal, gas is oil-containing foam not substantially.Right >=3 μ m-5 μ m oil foams, arresting efficiency reaches 98%-99.8%, and pressure drop, resistance are less.
Above-mentioned is the exhalation process of the speed reducer internal gas flow of contrast prior art; when speed reducer internal pressure is low, suck outside air; from the gas port of ring-shaped orifice plate 216, enter from the bottom up; grit larger in air can be in the separation that turns to of air-flow; can not enter resuscitation apparatus; compared with little grit, can by silk screen agglomerate, be filtered and can not enter speed reducer, guarantee that speed reducer sucks cleaner air.When silk screen agglomerate dust or greasy dirt are long-pending many, can take out and clean or change.
The utility model adopts two-stage to remove measure to what rise with oil droplet mist air-flow.One-level is removed and is adopted spiral plate type centrifugation, removes the larger oil droplet of particle diameter in air-flow; Secondary is removed and is adopted the filtering type of filamentary webs agglomerate separated, removes the trickle oily foam of particle diameter.Flaring pipeline section, makes the airspeed that enters filter screen group reach OK range.
Above described just for the utility model is described, is construed as the utility model and is not limited to above embodiment, meet the various flexible form of the utility model thought all within protection domain of the present utility model.
Claims (4)
1. a speed reducer resuscitation apparatus, is characterized in that, comprises threeway, elbow, filter screen group, screw piece centrifugal separator and top cover; Straight tube one end of described threeway is connected with speed reducer by flange, the other end is peep hole, by nut and plug screw shutoff, the 3rd end is connected with described elbow one end, and the pipeline section at described elbow the other end place is followed successively by path pipeline section, reduces gradually expanding section and the large-diameter pipe section of airspeed; In path pipeline section, be provided with screw piece centrifugal separator, in large-diameter pipe section, place filter screen group; In described top cover, bottom connects ring-shaped orifice plate, and this ring-shaped orifice plate inner side is internal thread, connects with the upper interface external thread of large-diameter pipe section.
2. a kind of speed reducer resuscitation apparatus according to claim 1, it is characterized in that, the screw piece that screw piece centrifugal separator is set in path pipeline section is weldingly fixed in the center stand column and fixed cross beam that the stainless reinforcing bar of minor diameter does, and fixed cross beam two ends are weldingly fixed on the inwall of path pipeline section.
3. a kind of speed reducer resuscitation apparatus according to claim 1, is characterized in that, large-diameter pipe pars infrasegmentalis welding screen support gusset, places filter screen group on it; Filter screen group is stainless steel filament woven mesh agglomerate.
4. a kind of speed reducer resuscitation apparatus according to claim 1, is characterized in that, the upper end of ring-shaped orifice plate is welded with two minor diameter positioning beam, and positioning beam is located when screwing for top cover, stops the displacement of filter screen group under gas shock simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420256216.XU CN203847676U (en) | 2014-05-19 | 2014-05-19 | Breather of reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420256216.XU CN203847676U (en) | 2014-05-19 | 2014-05-19 | Breather of reduction gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847676U true CN203847676U (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420256216.XU Expired - Lifetime CN203847676U (en) | 2014-05-19 | 2014-05-19 | Breather of reduction gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847676U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633065A (en) * | 2014-12-26 | 2015-05-20 | 南车戚墅堰机车车辆工艺研究所有限公司 | Breather for gear box and using method of breather for gear box |
| CN104960516A (en) * | 2015-06-29 | 2015-10-07 | 四川制动科技股份有限公司 | Spiral air exhaust structure for railway brake valve |
| CN105673824A (en) * | 2016-04-05 | 2016-06-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Breather device of light rail gearbox |
| WO2017045279A1 (en) * | 2015-09-19 | 2017-03-23 | 江苏泰宇减速机有限公司 | Speed reducer with bent pipe vent cap |
| CN107503976A (en) * | 2017-09-04 | 2017-12-22 | 陕西未来能源化工有限公司 | A kind of gas-liquid separation breathes oil return apparatus |
| GB2545574B (en) * | 2015-12-17 | 2018-10-17 | Romax Tech Limited | A Gearbox Seal for a Gearbox of a High Speed Train with a Pressure Differential |
| CN109132264A (en) * | 2018-09-12 | 2019-01-04 | 江苏新天宝机械有限公司 | A kind of anti sling liquid respirator |
| CN112413093A (en) * | 2021-01-11 | 2021-02-26 | 宁波丰特机械设备有限公司 | Centrifugal compressor gear box negative pressure balance system |
| WO2021213778A1 (en) * | 2020-04-21 | 2021-10-28 | Bayerische Motoren Werke Aktiengesellschaft | Deaerating device |
-
2014
- 2014-05-19 CN CN201420256216.XU patent/CN203847676U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633065A (en) * | 2014-12-26 | 2015-05-20 | 南车戚墅堰机车车辆工艺研究所有限公司 | Breather for gear box and using method of breather for gear box |
| CN104960516A (en) * | 2015-06-29 | 2015-10-07 | 四川制动科技股份有限公司 | Spiral air exhaust structure for railway brake valve |
| WO2017045279A1 (en) * | 2015-09-19 | 2017-03-23 | 江苏泰宇减速机有限公司 | Speed reducer with bent pipe vent cap |
| GB2545574B (en) * | 2015-12-17 | 2018-10-17 | Romax Tech Limited | A Gearbox Seal for a Gearbox of a High Speed Train with a Pressure Differential |
| CN105673824A (en) * | 2016-04-05 | 2016-06-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Breather device of light rail gearbox |
| CN107503976A (en) * | 2017-09-04 | 2017-12-22 | 陕西未来能源化工有限公司 | A kind of gas-liquid separation breathes oil return apparatus |
| CN109132264A (en) * | 2018-09-12 | 2019-01-04 | 江苏新天宝机械有限公司 | A kind of anti sling liquid respirator |
| WO2021213778A1 (en) * | 2020-04-21 | 2021-10-28 | Bayerische Motoren Werke Aktiengesellschaft | Deaerating device |
| CN112413093A (en) * | 2021-01-11 | 2021-02-26 | 宁波丰特机械设备有限公司 | Centrifugal compressor gear box negative pressure balance system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |