CN102996729A - Grease lubricated large star wheel speed controller for bearing - Google Patents
Grease lubricated large star wheel speed controller for bearing Download PDFInfo
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- CN102996729A CN102996729A CN201210407391XA CN201210407391A CN102996729A CN 102996729 A CN102996729 A CN 102996729A CN 201210407391X A CN201210407391X A CN 201210407391XA CN 201210407391 A CN201210407391 A CN 201210407391A CN 102996729 A CN102996729 A CN 102996729A
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- bearing
- gear
- bearings
- wheel
- shaft
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- 239000004519 grease Substances 0.000 title claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 241000239290 Araneae Species 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 239000012208 gear oil Substances 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 9
- 238000005461 lubrication Methods 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 208000008312 Tooth Loss Diseases 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
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- Rolling Contact Bearings (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of large gear speed controllers and in particular relates to a grease lubricated large star wheel speed controller for a bearing. In a base, gears are lubricated with gear oil and rolling bearings are lubricated with bearing grease. The speed controller comprises primary and secondary bases, wherein the primary base is internally provided with a star wheel transmission part and comprises an input shaft, eccentric bearings, N groups of star wheel components, primary inner gear rings and a cage-shaped hinge pin type output mechanism; and the secondary base is internally provided with a bevel gear pair and a planet differential part. The speed controller is characterized in that planet gears are supported on planet gear shafts by sealed bearings; the two ends of the input shaft are respectively supported in central holes on inner end faces of an output shaft and the secondary base by sealed bearings; an eccentric bearing in each planet gear comprises two sealed bearings and inner eccentric bushings; in the output mechanism, the neck of the output shaft is supported in inner holes of the bases by sealed bearings and sealing parts are arranged on the two sides of the bearings; and inner holes of supporting discs are supported on the outer circle of the flange of the inner end face of the secondary base by sealed bearings. The speed controller has the beneficial effects that the bearing runs reliably, so the speed reducer has long service life and low noise.
Description
[technical field] the present invention relates to large gear speed regulator technical field, and a kind of bearing grease lubricates large-scale star-wheel speed regulator.
[background technique] " adopting planetary-gear speed reducer or the speed regulator of mechanical core body " ZL200510098706.7; " star-wheel speed regulator " ZL200510098385.0; " large-scale involute star-wheel speed regulator " (201110371928.7).
Subject matter: because the engagement pair sliding friction makes gear oil very fast dirty, damage of bearings causes the left alone without help machine of retarder.
" decelerator trouble accounts for 40% in the coal mine equipment fault.Bearing is the in addition part that is very easy in the retarder damage.The bearing mode of failure: bearing scratches, bearing is adhered, bearing is invaded impurity, retainer fracture etc.Reason: large granular impurity content is higher in the lubricant oil, increases the weight of the bearing wear degree." " the destruction reasons and management method of mine speed reducer "
" the bearing wheels tooth surface is bearing 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 will constantly be expanded so that be connected with each other and form biscuit metal and come off; the flank of tooth spot corrosion occurs and peels off, and gear teeth face produces fatigue damage." " Fatigue failure of heavy-duty gear surface and prevention "
(1) the high basic reason of bearing fault rate:
" insufficient lubrication is the main cause that causes the bearing early damage " (891 pages of Liu Zejiu " rolling bearing application manual ")
" ... bearing early failue often is not the fatigue ruption that material causes, but pollutant enter bearing inside afterwards lubricated lipid degenerate gradually, produce due to the impression at the rolling surface of contact." (" sealing technique of seal deep groove ball bearing " bearing 2009.05)
Radial ball bearing contact stress σ max=5000Mpa (р. д. not prompt Germania " 134 pages of rolling bearing handbook) be gear pair σ max=1450Mpa 3-4 doubly, so the turbidity test of bearing grease (oil) should be far above the lubricant oil of gear.
(a) Shanghai Machinery College " Fundamentals of Machine Design " is upper 103 pages: " pull down after gear transmission equipment use a period of time and can find that wear trace appears in tooth surface; lubricating under relatively poor or the impure condition of lubricant oil especially; wear phenomenon is more obvious; the wearing and tearing of gear teeth root are serious than the top, the small gear wearing and tearing are serious than gearwheel again.Wearing and tearing are owing to having active force and relative sliding to cause between the surface of contact.Relative sliding length Δ S has been arranged between flank profil, shown that flank profil will wear and tear.”
(b) " 94 pages of Gear Transmission Design handbook: in the power gear transmission, tooth surface is because skimming wear, burn into are overheated etc., thereby flank of tooth loss to occur be inevitable for Zhu Xiaolu;
(2) require in theory bearing with grease lubrication (or not containing additive mineral oil), the gear additive lubricating oil:
(a) Liu Zejiu " rolling bearing application manual " is 893 pages: " when run up or high temperature under the bearing of working, in the time can't using grease lubrication or bearing contiguous part (such as gear) is when using oil lubrication in addition, bearing is just used oil lubrication." 921 pages: " ... the lubricated general mineral oil with not containing additive of rolling bearing ";
(b) Zhu Xiaolu " 1087 pages of Gear Transmission Design handbook: be in the gear under the boundary lubrication condition, should use the lubricant oil that contains extreme pressure anti-wear additives (additive).
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 the bearing fault rate is high are with gear oil while oilgear and rolling bearing.
[summary of the invention] the object of the invention provides a kind of bearing grease of long service life lubricated large-scale star-wheel speed regulator.
[technological scheme] second planet wheel is bearing on the second planet wheel shaft with two the first stuffing box bearings, and the first row star-wheel is bearing on the first row spider gear shaft with two the second stuffing box bearings; The two ends of input shaft are bearing in output shaft and auxiliary engine bed interior edge face center hole with the 3rd, the 4th stuffing box bearing respectively; Capacity eccentric bearing in every planet wheel comprises two the 5th stuffing box bearings and is contained in the interior eccentric bushing of stuffing box bearing endoporus; In the cage modle pin axle type output mechanism, output shaft neck is bearing in the support endoporus with two rolling bearings, and second, third Sealing is equipped with respectively in the both sides of rolling bearing, and the supporting disk endoporus is bearing on the cylindrical of auxiliary engine bed interior edge face flange with the 4th stuffing box bearing.The feasibility of grease lubricating bearing is presented below:
1. Ai Siman " rolling bearing design and application manual " is 221 pages: " when compact structure, preferably use the radial ball bearing that the two sides sealing is housed.The radial ball bearing that the two sides seal ring the is housed lubricating grease of the whole life time of enough bearings of having packed into.”
2. Bu Yan " 95 pages of practical bearing technology handbook: " and those compact structures, axial dimension require little, seal request strict, safeguard the repairing difficulty, the place of additional seal device is adopted in inconvenience, can preferentially select stuffing box bearing.”
3. Liu Ze nine " rolling bearing application manual " is 593 pages: " stuffing box bearing both can have an excellent sealing to lubricate environment, also saved complicated lubrication system simultaneously.So at compact structure, the strict position of seal request, all stuffing box bearing is used in suggestion.”
" 1096 pages of Gear Transmission Design handbook: " gear lubricant and gear and other are parts the same working life that it is arranged in addition, and the working life of oil product is closely related with applying working condition and maintenance technology again for Zhu Xiaolu.General industry gear normal operation 2500h. or must change oil in 6 months." 913 pages of Liu Zejiu " rolling bearing application manual ": it is as follows to change fat cycle empirical correlation:
T＝1.475·10
6K
-0.9908-1.025·10
6K
-0.8626(h.)
In the formula: COEFFICIENT K=K
fNDm (rmm/s) (ball bearing K
f=0.9-1.1), Dm=(D+d)/2
Result of calculation: the fat cycle of changing of stuffing box bearing, 2500 (h.) greater than regulation changed the fat cycle, thereby had proved packed into the lubricating grease of the whole life time of enough bearings of stuffing box bearing.
Motor n
l=1000rpm, NAD:i=6.3, n=158.7rpm, NBD:i=40, n=25rpm change the fat cycle
[beneficial effect] bearing operation is reliable, thereby retarder long service life, noise are low.
[description of drawings] Fig. 1, embodiment of the invention structural representation
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of bearing grease lubricates large-scale star-wheel speed regulator, comprise main machine base 1 and the auxiliary engine bed 15 that connects with it, described main machine base 1 in-built planet gearing spare, comprise input shaft 12, capacity eccentric bearing, N organizes star wheel component, main ring gear 9 and cage modle pin axle type output mechanism, the capacity eccentric bearing that each group star wheel component in the described star wheel component comprises identical four planetary pinions 8 and is contained in every inner hole of planetary gear, in described four planetary pinions, first and second, the 3rd with 180 ° of fourth round phase differences, second with the third round cophasing, described N group is one group, or two groups, or three groups, or four groups, or five groups, described planetary pinion pin-and-hole is equipped with wear-resisting ring 5, described cage modle pin axle type output mechanism comprises output shaft 3, pin 6, column sleeve, the ring 7 that all carries between planetary pinion reaches and the friction tight supporting disk 10 in pin 6 ends in twos, described ring 7 quantity of all carrying equal 4N-1, described main ring gear 9 is fastened on support 1 endoporus, described auxiliary engine bed 15 in-built bevel gear pairs and planetary differential parts, described bevel gear pair comprises the master, driven wheel of differential 21,17, described planetary differential parts comprise planetary member and differential, described planetary member comprises the first sun gear 16 that connects with driven wheel of differential 17, the first row star-wheel 20, be connected in the first ring gear 13 of auxiliary engine bed 15 endoporus, the first row spider gear shaft 31 and the first planet carrier 14, described differential comprises the second sun gear 19 that is connected on the main power shaft 18, the second planet wheel 22, the second planet wheel shaft 29, the second planet carrier 24 and the second ring gear 23 that connects with the first planet carrier 14, the drive path of input power: second sun gear 19 of a route master motor on main power shaft 18 reaches the second planet wheel 22; Another route speed-adjustable motor reaches the second planet wheel 22 through drive bevel gear 21, driven wheel of differential 17, the first sun gear 16, the first row star-wheel 20, the second ring gear 23 of being connected in the first planet carrier 14, drive the input shaft 12 that connects with it by the second planet carrier 24 after the speed governing, through the output of involute star-wheel component slows down, it is characterized in that:
Two the first stuffing box bearings 30 of described the first row star-wheel 20 usefulness are bearing on the first row spider gear shaft 31, and two the second stuffing box bearings 28 of described the second planet wheel 22 usefulness are bearing on the second planet wheel shaft 29;
The both sides of described input shaft 12 are bearing in output shaft 3 and auxiliary engine bed 15 interior edge face center holes with the 3rd, the 4th stuffing box bearing 25,26 respectively;
Capacity eccentric bearing in the described every planetary pinion 8 comprises two the 5th stuffing box bearings 2 and is contained in eccentric bushing 27 in the brearing bore;
In the described cage modle pin axle type output mechanism, output shaft 3 axle journals are bearing in support 1 endoporus with two rolling bearings 4, second, third Sealing 41,42 is equipped with respectively in the both sides of described rolling bearing 4, and described supporting disk 10 endoporus are bearing on the cylindrical of auxiliary engine bed 15 interior edge face flanges with the 4th stuffing box bearing 11;
Described stuffing box bearing is contact-type radial seal bearing, such as RK or RS or HMS (A) or MHS (A) type, described Sealing is rotary shaft lip seal or Che Shi combination seal (Cheng Daxian " mechanical design handbook " volume 3-10-269,300 pages);
" 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.Structure by seal ring can be divided into single lip seal and double-lip seal." (593 pages of Liu Zejiu " rolling bearing application manual ")
Embodiment is to explanation of the present invention rather than restriction, and the scheme after any simple transformation all belongs to protection scope of the present invention.
Claims (1)
1. a bearing grease lubricates large-scale star-wheel speed regulator, comprise main machine base (1) and the auxiliary engine bed (15) that connects with it, the in-built planet gearing spare of described main machine base (1), comprise input shaft (12), capacity eccentric bearing, N organizes star wheel component, main ring gear (9) and cage modle pin axle type output mechanism, the capacity eccentric bearing that each group star wheel component in the described star wheel component comprises identical four planetary pinions (8) and is contained in every inner hole of planetary gear, in described four planetary pinions, first and second, the 3rd with 180 ° of fourth round phase differences, second with the third round cophasing, described N group is one group, or two groups, or three groups, or four groups, or five groups, described planetary pinion pin-and-hole is equipped with wear-resisting ring (5), described cage modle pin axle type output mechanism comprises output shaft (3), pin (6), column sleeve, the ring (7) that all carries between planetary pinion reaches and the friction tight supporting disk in pin (6) end (10) in twos, described ring (7) quantity of all carrying equals 4N-1, described main ring gear (9) is fastened on support (1) endoporus, the in-built bevel gear pair of described auxiliary engine bed (15) and planetary differential parts, described bevel gear pair comprises the master, driven wheel of differential (21,17), described planetary differential parts comprise planetary member and differential, described planetary member comprises the first sun gear (16) that connects with driven wheel of differential (17), the first row star-wheel (20), be connected in first ring gear (13) of auxiliary engine bed (15) endoporus, the first row spider gear shaft (31) and the first planet carrier (14), described differential comprises the second sun gear (19) that is connected on the main power shaft (18), the second planet wheel (22), the second planet wheel shaft (29), the second planet carrier (14) and the second ring gear (23) that connects with the first planet carrier (14) is characterized in that:
Described the first row star-wheel (20) is bearing on the first row spider gear shaft (31) with two the first stuffing box bearings (30), and described the second planet wheel (22) is bearing on the second planet wheel shaft (29) with two the second stuffing box bearings (28);
The both sides of described input shaft (12) use respectively the 3rd, the 4th stuffing box bearing (25,26) to be bearing in output shaft (3) and auxiliary engine bed (15) interior edge face center hole;
Capacity eccentric bearing in the described every planetary pinion (8) comprises two the 5th stuffing box bearings (2) and is contained in the interior eccentric bushing (27) of stuffing box bearing (2) endoporus;
In the described cage modle pin axle type output mechanism, output shaft (3) axle journal is bearing in support (1) endoporus with two rolling bearings (4), second, third Sealing (41,42) is equipped with respectively in the both sides of described rolling bearing (4), and described supporting disk (10) endoporus is bearing on the cylindrical of auxiliary engine bed (15) interior edge face flange with the 4th stuffing box bearing (11);
Described stuffing box bearing is contact-type radial seal bearing, such as RK or RS or HMS (A) or MHS (A) type;
Described Sealing is rotary shaft lip seal or Che Shi combination seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407391.XA CN102996729B (en) | 2012-10-09 | 2012-10-09 | Grease lubricated large star wheel speed controller for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407391.XA CN102996729B (en) | 2012-10-09 | 2012-10-09 | Grease lubricated large star wheel speed controller for bearing |
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| Publication Number | Publication Date |
|---|---|
| CN102996729A true CN102996729A (en) | 2013-03-27 |
| CN102996729B CN102996729B (en) | 2015-04-08 |
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|---|---|---|---|
| CN201210407391.XA Active CN102996729B (en) | 2012-10-09 | 2012-10-09 | Grease lubricated large star wheel speed controller for bearing |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522672Y (en) * | 2001-12-27 | 2002-11-27 | 孙卫平 | Pin-balanced doulle cycloidal gear epicyclic transmission mechanism |
| CN1428521A (en) * | 2001-12-26 | 2003-07-09 | 王庆雨 | Cycloidal speed reducer |
| WO2007079694A1 (en) * | 2006-01-14 | 2007-07-19 | Guiqiang Qin | Gear type steeping stepless speed change device |
| CN101963208A (en) * | 2010-08-27 | 2011-02-02 | 吴声震 | Bevel gear-double cycloid speed reduction device for rocket launching movable platform |
| CN101963209A (en) * | 2010-08-27 | 2011-02-02 | 吴声震 | Cycloid speed-reducing device of rocket launching movable platform |
| CN101975254A (en) * | 2010-10-08 | 2011-02-16 | 吴声震 | Hydropower generation variable speed gear |
-
2012
- 2012-10-09 CN CN201210407391.XA patent/CN102996729B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428521A (en) * | 2001-12-26 | 2003-07-09 | 王庆雨 | Cycloidal speed reducer |
| CN2522672Y (en) * | 2001-12-27 | 2002-11-27 | 孙卫平 | Pin-balanced doulle cycloidal gear epicyclic transmission mechanism |
| WO2007079694A1 (en) * | 2006-01-14 | 2007-07-19 | Guiqiang Qin | Gear type steeping stepless speed change device |
| CN101963208A (en) * | 2010-08-27 | 2011-02-02 | 吴声震 | Bevel gear-double cycloid speed reduction device for rocket launching movable platform |
| CN101963209A (en) * | 2010-08-27 | 2011-02-02 | 吴声震 | Cycloid speed-reducing device of rocket launching movable platform |
| CN101975254A (en) * | 2010-10-08 | 2011-02-16 | 吴声震 | Hydropower generation variable speed gear |
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| Publication number | Publication date |
|---|---|
| CN102996729B (en) | 2015-04-08 |
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