CN102996765B - Bearing grease lubrication parallel axes series reduction - Google Patents
Bearing grease lubrication parallel axes series reduction Download PDFInfo
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- CN102996765B CN102996765B CN201210382835.9A CN201210382835A CN102996765B CN 102996765 B CN102996765 B CN 102996765B CN 201210382835 A CN201210382835 A CN 201210382835A CN 102996765 B CN102996765 B CN 102996765B
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- stuffing box
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Abstract
The present invention relates to mechanical reduction technical field, a kind of bearing grease lubrication parallel axes series reduction, comprise support, first and second and three master and slave gears, second master gear and first from gear couplings on the first axle 5,3rd master gear and second from gear couplings on the second axle, 3rd is also spacing with back-up ring 13 on output shaft from gear couplings, it is characterized in that: first and second axle stuffing box bearing is bearing in support cinclides, has little dome before stuffing box bearing; Output shaft bearing is bearing in the respective aperture of wall, there is Sealing the clutch shaft bearing both sides exporting axle stretch end respectively, second bearing of output shaft tail end fills spacer ring, thrust-bearing and gland successively, gland is connected on bearing hole end face, beneficial effect: adopt rolling bearing bearing grease lubrication in casing, the maximum technique effect of planetary reduction box of gear gear oil pressure lubrication is that bearing operation is reliable, thus retarder long service life, noise are low.
Description
[technical field]
The present invention relates to mechanical reduction technical field, a kind of bearing grease lubrication parallel axes series reduction, is that improvement-support internal gear oil lubrication, the rolling bearing bearing grease of the F series reduction in the large series of German SEW company four lubricates.
[background technique]
The large series reduction of moral SEW company R, F, K and S four, is that Now Domestic copies the widest another type after cycloid speed reducer, spreads all over tobacco machine production line, beer production line, mining machinery ...
R series plagiodont wheel speed reducer is suitable with China coaxial-type cylinder gear speed reducer TZ series (JB/T7000-93); The YNS series (JB/T7000-93) of the series of parallel axis helical teeth wheel speed reducer of F and Nanjing high gear factory, the S series of Tangshan Metallurgical Mine Machinery Factory are quite; YK series circular cone-cylinder gear speed reducer (YB/T050-93) of k series helix bevel gear reducer and Nanjing high gear factory, Tangshan Metallurgical Mine Machinery Factory and Zhengzhou Research Institute of Mechanical Engineering is suitable; S series plagiodont wheel worm-gear speed reducer is suitable with China's worm reducer (JB/T7935-95,6387-92 and 7008-93).
Therefore, the fault that domestic type occurs, R, F, K and S four are large, and serial imitation products also there will be certainly.A fact: K series helix conic reducer rate of fault when being applied to rotary-brush type aerator is very high, Zhejiang leather company sewage farm, the K Series Gear Reducers of aerator adapted Zhejiang ×× speed reducer company uses less than two months bad, change new having gone bad again soon, conscientiously check, analyze after tearing machine open, reason is that cone tooth is positioned at highest point, the lubricant oil splashed is difficult to lubricate rolling bearing, make bearing just thirsty oily early, retainer ruptures, and the steel ball be scattered makes again bevel gear snaggletooth.
" decelerator trouble accounts for 40% in coal mine equipment fault.Bearing is the another part being very easy in retarder damage.Bearing failure form: bearing scratches, bearing is adhered, bearing invades impurity, retainer fracture etc.Reason: in lubricant oil, large granular impurity content is higher, increases the weight of bearing wear degree." " Slope protection of mine speed reducer and processing method "
" bearing wheels tooth surface subjects multi-form effect of stress everywhere; the flank of tooth and subcutaneous metal may produce fine crack and form tired source; stress-number of cycles increases thereupon; crackle is by constantly expansion so that the formation biscuit metal that is connected with each other come off; the flank of tooth occurs that spot corrosion is peeled off, and gear teeth face produces fatigue damage." " Fatigue failure of heavy-duty gear surface and prevention "
(1) basic reason that bearing fault rate is high:
" insufficient lubrication is the main cause causing bearing early damage " (Liu Zejiu " rolling bearing application manual " 891 pages)
" ... bearing early failue is not often the fatigue ruption that material causes, but pollutant lubricates lipid after entering Bearing inner degenerates gradually, and Structure deformation face produces caused by impression." (" sealing technique of seal deep groove ball bearing " bearing 2009.05)
Radial ball bearing contact stress σ max=5000Mpa (p. д. 134 pages, " the rolling bearing handbook " of not prompt Germania) for gear pair σ max=1450Mpa 3-4 doubly, therefore the turbidity test of bearing grease (oil) should far above the lubricant oil of gear.
Upper 103 pages of (a) Shanghai Machinery College " Fundamentals of Machine Design ": " gear transmission equipment is pulled down after using a period of time can find that wear trace appears in tooth surface; lubricating under poor or the impure condition of lubricant oil especially; wear phenomenon is more obvious; gear teeth root weares and teares, and seriously, comparatively gearwheel is serious again in small gear wearing and tearing at comparatively top.Wearing and tearing cause owing to having active force and relative sliding between surface of contact.There is relative sliding length Δ S between flank profil, shown that flank profil will be worn and torn.”
(b) Zhu Xiaolu " Gear Transmission Design handbook " 94 pages: in power gear transmission, tooth surface due to skimming wear, burn into overheated etc., thus occur that flank of tooth loss is inevitable;
(c) " maintenance of wind-driven generator group wheel box bearing and maintenance ": " operations staff's boarding finds there is 2mm in filter cleaner
2flakey iron filings and a large amount of metallic dust; The displacement of high speed shaft bearing damage backgear, causes planet carrier flank engagement abnormal and damages.”
(2) bearing grease lubrication (or not containing additive mineral oil) is required in theory, gear additive lubricating oil:
(a) Liu Zejiu " rolling bearing application manual " 893 pages: " when the bearing run up or work under high temperature; when grease lubrication cannot be used or when the contiguous another part (as gear) of bearing uses oil lubrication, bearing just uses oil lubrication." 921 pages: " ... the lubrication of rolling bearing is generally with the mineral oil not containing additive ";
(b) Zhu Xiaolu " Gear Transmission Design handbook " 1087 pages: be in the gear under boundary lubrication condition, the lubricant oil containing extreme pressure anti-wear additives (additive) should be used.
SH/T0017-1990L-FC Grade A bearing oil kinematical viscosity is 90-100; Be that 288-352 is much smaller than gear oil viscosity.
Conclusion: gear-box, the basic reason that bearing fault rate is high are with gear oil oilgear and rolling bearing simultaneously.
[summary of the invention] provides the bearing grease lubrication parallel axes series reduction of a kind of bearing grease lubrication, the oil lubrication of gear gear.
[technological scheme]
First axle two ends are bearing in first, second stuffing box bearing in the respective aperture of support wall respectively, and first, second little dome is housed before first, second stuffing box bearing respectively; Second axle two ends are bearing in the respective aperture of support wall with the 3rd, the 4th stuffing box bearing respectively, and the 3rd, the 4th little dome is housed before the 3rd, the 4th stuffing box bearing respectively; Output shaft both sides are bearing in the respective aperture of wall with first, second bearing respectively, the clutch shaft bearing both sides of output shaft axle stretch end have the 5th, the 6th Sealing respectively, 5th Sealing is placed in the seat being connected in bearing hole outer end, second bearing of output shaft shaft tail end fills spacer ring, thrust-bearing and gland successively, gland is connected on bearing hole end face, fills out lubricating grease in first, second bearing; Described stuffing box bearing is contact-type radial seal bearing, and as RK type or RS type or HMS (A) type or MHS (A) type, described Sealing is rotary shaft lip seal or Che Shi combination seal.
" self seal of bearing is divided into contact-type and noncontact seal by structural type.Radial seal and axial seal can be divided into by contact-type.Single lip seal and double-lip seal can be divided into by the structure of seal ring." (Liu Zejiu " rolling bearing application manual " 593 pages)
Fill the object of end cap before stuffing box bearing: (a) when stuffing box bearing be single lip seal structure, then end cap and bearing without in the space of seal ring side in order to store a certain amount of lubricating grease; (b) when stuffing box bearing be two-lid sealing structure, then end cap major function ensures that extraneous unfavorable factor such as dust, sand grains etc. enters stuffing box bearing.The feasibility of grease lubricating bearing is presented below:
1. Ai Siman " rolling bearing design and application manual " 221 pages: " when compact structure, preferably use the radial ball bearing that two sides sealing is housed.The radial ball bearing that two sides seal ring is housed has loaded the lubricating grease of the whole life time of enough bearings.”
2. Bu Yan " practical bearing technology handbook " 95 pages: " at those compact structures, axial dimension requirement is little, seal request strict, safeguard repairing difficulty, and inconvenience adopts the place of additional seal assemblies, preferentially can select stuffing box bearing.”
3. Liu Ze nine " rolling bearing application manual " 593 pages: " stuffing box bearing both can have an excellent sealing lubrication environment, also saved complicated lubrication system simultaneously.So at compact structure, the strict position of seal request, all suggestion uses stuffing box bearing.”
[beneficial effect]
Adopt rolling bearing bearing grease lubrication in casing, the maximum technique effect of planetary reduction box of gear gear oil pressure lubrication is that bearing operation is reliable, thus retarder long service life, noise are low.
[attached have a talk about bright]
Fig. 1. be structural representation of the present invention
[embodiment]
With reference to Fig. 1. a kind of bearing grease lubrication parallel axes series reduction, comprise support 1, first driven gear 2, the second driving and driven gear 6,10, the 3rd driving and driven gear 22,14, described second driving gear 6 and the first driven gear 2 be connected on the first axle 5, described 3rd driving gear 22 and the second driven gear 10 are connected on the second axle 7, described 3rd driven gear 14 is connected on output shaft 15 also spacing with back-up ring 13, first driving gear is located on motor, it is characterized in that:
Described first axle 5 two ends are bearing in the respective aperture of support wall with first, second stuffing box bearing 23,3 respectively, before the first end cap 24, second stuffing box bearing 3 is housed before described first stuffing box bearing 23, second end cap 4 are housed;
Described second axle 7 two ends are bearing in the respective aperture of support wall with the 3rd, the 4th stuffing box bearing 20,9 respectively, before the 3rd end cap the 21, four stuffing box bearing 9 is housed before described 3rd stuffing box bearing 20, the 4th end cap 8 are housed;
Described output shaft 15 both sides are bearing in the respective aperture of wall with first, second bearing 18,12 respectively, clutch shaft bearing 18 both sides of described output shaft 15 axle stretch end have first, second Sealing 16,19 respectively, described first Sealing 16 is placed in the seal seats 17 being connected in bearing hole outer end, second bearing 12 of described output shaft 15 shaft tail end fills spacer ring, thrust-bearing 11 successively afterwards and is connected in the nose circle lid 25 of bearing hole end face, fills out lubricating grease in first, second bearing 18,12 described;
Described stuffing box bearing is contact-type radial seal bearing, and " self seal of bearing is divided into contact-type and noncontact seal by structural type, can be divided into radial seal and axial seal by contact-type, can be divided into single lip seal and double-lip seal by the structure of seal ring." (Liu Zejiu " rolling bearing application manual " 593 pages), described Sealing is rotating shaft lip-shaped sealing or Che Shi combination seal (Cheng great Xian " mechanical design handbook " roll up 3-10-269,300 pages).
Claims (1)
1. a bearing grease lubrication parallel axes series reduction, comprising support (1), the first driven gear (2), the second driving and driven gear (6,10), the 3rd driving and driven gear (22,14), described second driving gear (6) and the first driven gear (2) is connected on the first axle (5), described 3rd driving gear (22) and the second driven gear (10) are connected on the second axle (7), described 3rd driven gear (14) is connected in output shaft (15) and goes up and use back-up ring (13) spacing, it is characterized in that:
Described first axle (5) two ends are bearing in the respective aperture of support wall with first, second stuffing box bearing (23,3) respectively, before described first stuffing box bearing (23), the first end cap (24) is housed, before the second stuffing box bearing (3), the second end cap (4) is housed;
Described second axle (7) two ends use the 3rd, the 4th stuffing box bearing (20,9) to be bearing in the respective aperture of support wall respectively, before described 3rd stuffing box bearing (20), the 3rd end cap (21) is housed, before the 4th stuffing box bearing (9), the 4th end cap (8) is housed;
Described output shaft (15) both sides use first respectively, second bearing (18, 12) be bearing in the respective aperture of wall, clutch shaft bearing (18) both sides of described output shaft (15) axle stretch end have first respectively, second Sealing (16, 19), described first Sealing (16) is placed in the seal seats (17) being connected in bearing hole outer end, spacer ring is filled successively after second bearing (12) of described output shaft (15) shaft tail end, thrust-bearing (11) and be connected in the nose circle lid (25) of bearing hole end face, described first, second bearing (18, 12) lubricating grease is filled out in,
Described stuffing box bearing is contact-type radial seal bearing, and Sealing is rotary shaft lip seal or Che Shi combination seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210382835.9A CN102996765B (en) | 2012-09-11 | 2012-09-11 | Bearing grease lubrication parallel axes series reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210382835.9A CN102996765B (en) | 2012-09-11 | 2012-09-11 | Bearing grease lubrication parallel axes series reduction |
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| Publication Number | Publication Date |
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| CN102996765A CN102996765A (en) | 2013-03-27 |
| CN102996765B true CN102996765B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210382835.9A Active CN102996765B (en) | 2012-09-11 | 2012-09-11 | Bearing grease lubrication parallel axes series reduction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6509288B2 (en) * | 2017-08-29 | 2019-05-08 | 本田技研工業株式会社 | Vehicle drive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035021U (en) * | 1988-02-13 | 1989-03-29 | 雷良榆 | Planetary flexible gearing with small tooth number difference |
| WO1997042425A1 (en) * | 1996-05-06 | 1997-11-13 | Volvo Lastvagnar Ab | Sealing device for bearing arrangements and arrangement for sealing of a bearing device |
| CN2375822Y (en) * | 1998-12-24 | 2000-04-26 | 中国人民解放军第四八一三工厂 | Oil and liquid lubricating device for electric hub speed reducer of electric bicycle |
| JP2003034257A (en) * | 2001-07-25 | 2003-02-04 | Koyo Seiko Co Ltd | Electrically driven power steering device |
| CN201610920U (en) * | 2010-03-29 | 2010-10-20 | 浙江顺天减速机制造有限公司 | Speed reducer with parallel shafts and helical gears |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008758A1 (en) * | 2007-02-22 | 2008-08-28 | Schuler Pressen Gmbh & Co. Kg | Transmission hub unit for a wind turbine |
-
2012
- 2012-09-11 CN CN201210382835.9A patent/CN102996765B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035021U (en) * | 1988-02-13 | 1989-03-29 | 雷良榆 | Planetary flexible gearing with small tooth number difference |
| WO1997042425A1 (en) * | 1996-05-06 | 1997-11-13 | Volvo Lastvagnar Ab | Sealing device for bearing arrangements and arrangement for sealing of a bearing device |
| CN2375822Y (en) * | 1998-12-24 | 2000-04-26 | 中国人民解放军第四八一三工厂 | Oil and liquid lubricating device for electric hub speed reducer of electric bicycle |
| JP2003034257A (en) * | 2001-07-25 | 2003-02-04 | Koyo Seiko Co Ltd | Electrically driven power steering device |
| CN201610920U (en) * | 2010-03-29 | 2010-10-20 | 浙江顺天减速机制造有限公司 | Speed reducer with parallel shafts and helical gears |
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| CN102996765A (en) | 2013-03-27 |
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Effective date of registration: 20171227 Address after: 401120 Chongqing city Yubei District Shuangfeng Bridge Street, Airport Road No. 7 Building 3 buildings Patentee after: Chongqing Beijing Great Automotive Components Company Limited Address before: Whitehead street in Zhejiang County of Pingyang Province town of Kunyang 325400 Building No. 4 room 761 Patentee before: Wu Xiaojie |
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Effective date of registration: 20181129 Address after: 225400 No. 88 Daqing East Road, Taixing, Taizhou, Jiangsu. Patentee after: Tailong Decelerating Machine Co., Ltd., Jiangsu Address before: 401120 Chongqing Yubei District Shuangfeng Bridge Street 3 East Road 7 buildings Patentee before: Chongqing Beijing Great Automotive Components Company Limited |