CN102996716B - Bearing grease lubrication dynamic balance involute three-ring speed reducer - Google Patents
Bearing grease lubrication dynamic balance involute three-ring speed reducer Download PDFInfo
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- CN102996716B CN102996716B CN201210408225.1A CN201210408225A CN102996716B CN 102996716 B CN102996716 B CN 102996716B CN 201210408225 A CN201210408225 A CN 201210408225A CN 102996716 B CN102996716 B CN 102996716B
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Abstract
The present invention relates to three ring braking technique fields, a kind of bearing grease lubrication dynamic balance involute three-ring speed reducer includes support, output shaft, three ring flat-plates, two parallel power shafts, external gear and ring gear, it is characterized in that: on power shaft, sequentially device seals bearing, spacer ring, eccentric bushing, spacer ring, middle eccentric bushing, spacer ring, eccentric bushing, spacer ring and seals bearing, two seal bearing is respectively placed in support two side in order to support power shaft；The capacity eccentric bearing of ring flat-plate includes sealing bearing and eccentric bushing, both sides eccentric bushing and middle eccentric bushing phase contrast 180 °, and three sealing bearings are identical, and three eccentricity set is identical；Output shaft two ends bearing is bearing in support two side endoporus respectively, and there is sealing member clutch shaft bearing both sides, enters bearing in order to dirty oil dust-proof, anti-, and described second bearing has a sealing member preventing support Application of Viscera Oil from entering bearing.Beneficial effect: have the technical effect that bearing operation is reliable, thus decelerator length in service life, noise are low.
Description
[technical field] the present invention relates to existing three ring flat-plate few teeth difference braking technique fields, a kind of bearing grease lubrication dynamic balance involute three
Ring decelerator, support internal gear gear oil lubrication, rolling bearing bearing grease lubricate.
[background technology] background technology mainly has: have after " three ring speed reduction gearings " (85106692): (1) Dalian traffic is big
Learn " Double-crank annular plate cycloidal pin-wheel speed reducer " 96207312 and " Double crank ring-plate type cycloid pinwheel planetary speed reducer " 02231994；
(2) Shanghai Institute Of Technology's " internal gear plate type planet gear driving device " 200420107933；(3) Tianjin Tian Chongzhongzhi section
Skill engineering company " the imitative method of elimination three-ring speed reducer gear engagement impact " 200810053910；(4) Liaoning Technical University is " complete
Balanced dual drive three-ring speed reducer " 200920012531；(5) high-bearing capacity three-ring speed reducer (201110153532.5) etc..
Background technology subject matter is: when gear oil lubricates rolling bearing at the same time with involute gear Meshing Pair, rubs owing to sliding
Wipe, gear oil can be made the most dirty, bearing damage, cause decelerator because of the left alone without help machine of fault.
" decelerator trouble accounts for 40% in coal mine equipment fault.Bearing is the another part being very easy in decelerator damage.Bearing
Failure mode: bearing scratches, bearing is adhered, bearing invades impurity, retainer fracture etc..Reason: big in lubricating oil
Granule foreign content is higher, increases the weight of bearing wear degree." " Slope protection of mine speed reducer and processing method "
" bearing wheels tooth surface subjects the stress effect of multi-form, the flank of tooth and subcutaneous metal everywhere and may produce fine crack and formed
Tired source, stress-number of cycles increases therewith, and crackle will constantly extend so that the formation biscuit metal that is connected with each other comes off, tooth
Face 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 " page 891)
" ... bearing initial failure is frequently not the fatigue rupture that material causes, but pollutant lubricate lipid after entering Bearing inner
Gradually degenerate, Structure deformation face produces caused by impression." (" Sealing Technology of seal deep groove ball bearing " bearing 2009.05)
Radial ball bearing contact stress σ max=5000Mpa (p. д. " the rolling bearing handbook " of not prompt Germania page 134) it is tooth
3-4 times of wheel set σ max=1450Mpa, therefore the cleannes of bearing grease (oily) should be far above the lubricating oil of gear.
Upper page 103 of (a) Shanghai Machinery College " Fundamentals of Machine Design ": " gear drive equipment is pulled down and can be sent out after using a period of time
There is wear trace in existing tooth surface, and under the conditions of poor in lubrication especially or lubricating oil is impure, wear phenomenon becomes apparent from,
Wheel root portion relatively top of wearing and tearing is serious, and little gear wear is serious compared with gear wheel again.Abrasion be due to have between contact surface active force and
Slip relatively causes.... there is relative sliding length Δ S between flank profil, shown that flank profil to be worn and torn.”
(b) Zhu Xiaolu " Gear Transmission Design handbook " page 94: in power gear transmission, tooth surface due to skimming wear,
Burn into is overheated etc., thus occurs that flank of tooth loss is inevitable；
(2) bearing grease lubrication (or without additive mineral oil) is required in theory, gear additive lubricating oil:
(a) Liu Zejiu " rolling bearing application manual " page 893: " when the bearing run up or work under high temperature, cannot make
With during grease lubrication or when the neighbouring another part (such as gear) of bearing uses oil lubrication, oil lubrication just used by bearing.”
Page 921: " ... the lubrication of rolling bearing is typically with the mineral oil without additive "；
(b) Zhu Xiaolu " Gear Transmission Design handbook " page 1087: be in the gear under boundary lubrication condition, should use containing extreme pressure
The lubricating oil of antiwear additive (additive).
SH/T0017-1990 L-FC Grade A bearing oil kinematic viscosity is 90-100；It is 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.
The bearing grease lubrication dynamic balance involute three-ring speed reducer of [summary of the invention] the object of the invention offer length in a kind of service life.
On [technical scheme] first power shaft sequentially device first seal bearing, the first spacer ring, the first eccentric bushing, the second spacer ring, two
Merely hit an eccentric bushing, the 3rd spacer ring, the second eccentric bushing, the 4th spacer ring and second seal bearing, first, second seal bearing divides
It is not placed in body two side endoporus in order to support the first power shaft；The capacity eccentric bearing of the first ring flat-plate include two the 3rd seal bearings with
Being contained in the first eccentric bushing of brearing bore, the capacity eccentric bearing of the second ring flat-plate includes that two the 4th seal bearing and are contained in brearing bore
Second eccentric bushing, the capacity eccentric bearing of middle ring flat-plate includes four sealing bearings and is contained in the two of brearing bore and merely hits an eccentric bushing, the
One, the second eccentric bushing and middle eccentric bushing phase contrast 180 °, three sealing bearings are identical, and three eccentricity set is identical；Output shaft two ends
Being bearing in body two side endoporus respectively with first, second bearing, there is first, second sealing member clutch shaft bearing both sides, with in case
Dirt, anti-dirty oil enter bearing, and described second bearing has the 3rd sealing member preventing internal body viscera oil from entering bearing.
The feasibility of grease lubricating bearing is presented below:
1. Ai Siman " rolling bearing design and application manual " page 221: " when compact conformation, it is preferred to use close equipped with two sides
The radial ball bearing of envelope.Radial ball bearing equipped with two sides sealing ring has been charged into the grease of the whole useful life of enough bearings.”
2. Bu Yan " practical bearing technology handbook " page 95: " at those compact conformations, axial dimension requirement is little, seal request is tight
Lattice, safeguard repairing difficulty, inconvenience use additional seal assemblies place, can preferentially select sealing bearing.”
3. Liu Ze nine " rolling bearing application manual " page 593: " seal bearing and both can have an excellent sealing lubricant environment, with
Time also save complexity lubricating system.So at compact conformation, the strict position of seal request, all suggestions use and seal bearing.”
Zhu Xiaolu " Gear Transmission Design handbook " page 1096: " gear lubricant and gear and other another parts are the same making of it
With the life-span, the service life of oil product is closely related with applying working condition and maintenance technology again.... general industry gear normal operation 2500h.
Or must change oil for 6 months." Liu Zejiu " rolling bearing application manual " page 913: change fat cycle empirical equation as follows:
T=1.475 106K-0.9908-1.025·106K-0.8626(h.)
In formula: COEFFICIENT K=Kf·n·Dm(r mm/s) (ball bearing Kf=0.9-1.1), Dm=(D+d)/2
Result of calculation: the fat cycle of changing sealing bearing changes the fat cycle more than 2500 (h.) of regulation, thus demonstrates sealing bearing and fill
Enter the grease of the whole useful life of enough bearings.
Motor n1=1000rpm, NAD:i=6.3, n=158.7rpm, NBD:i=40, n=25rpm change the fat cycle
[beneficial effect] has the technical effect that bearing operation is reliable, thus decelerator length in service life, noise are low.
[accompanying drawing explanation] Fig. 1, embodiment of the present invention structural representation
The present invention is encyclopaedized by [detailed description of the invention] below in conjunction with the accompanying drawings:
With reference to Fig. 1. a kind of bearing grease lubrication dynamic balance involute three-ring speed reducer, including support 1,2, three ring flat-plates of output shaft,
Two identical, parallel first, second power shafts 12,14, external gear and ring gear, described three ring flat-plate capacity eccentric bearings divide
Be not bearing on first, second power shaft 12,14 monosymmetric relative to output shaft 2, wherein first, second ring flat-plate 91,
92 both sides being arranged in middle ring flat-plate 10, assemble the respectively in the centre bore of first, second ring flat-plate 91,92 and middle ring flat-plate 10
One, the second ring gear 51,52 and middle ring gear 6, described output shaft 2 sequentially couples outside first be meshed with ring gear
Gear 41, central teeth wheel 13 and second external gear 42, middle ring flat-plate 10 thickness of described three ring flat-plates be uniform thickness first, the
The twice of two ring flat-plates 91,92, the facewidth of described first external gear the 41, first ring gear 51 is equal with the first ring flat-plate 91 thickness,
The facewidth of described second external gear the 42, second ring gear 52 is equal with the second ring flat-plate (92) thickness, described central teeth wheel 13,
The facewidth of middle ring gear 6 is equal with middle ring flat-plate 10 thickness, it is characterised in that:
On described first power shaft 12, sequentially device first seals bearing A, the first spacer ring a, first eccentric bushing the 81, second spacer ring
B, middle eccentric bushing the 11, the 3rd spacer ring c, the second eccentric bushing the 82, the 4th spacer ring d and second seal bearing B, described first,
Second seals bearing A, B is respectively placed in support 1 two side endoporus in order to support the first power shaft 12；
The capacity eccentric bearing of described first ring flat-plate 91 includes that two the 3rd seal bearing 71 and are contained in brearing bore the first eccentric bushing 81,
The capacity eccentric bearing of described middle ring flat-plate 10 includes four the 4th middle eccentric bushings 11 sealing bearing 7 and be contained in brearing bore, institute
The capacity eccentric bearing stating the second ring flat-plate 92 includes two the 5th the second eccentric bushings 82 sealing bearing 72 and be contained in brearing bore, described
First, second eccentric bushing 81,82 and middle eccentric bushing 11 phase contrast 180 °, described third and fourth and five seal bearings 71,7
And 72 be same specification bearing, described three eccentricity set 81,8 and 82 eccentric throws are identical；
Described output shaft 2 two ends are bearing in support 1 two side endoporus, described first axle respectively with first, second bearing 3,15
Hold 3 both sides and have first, second sealing member 31,32, in order to prevent the outer dust of body, internal body viscera oil from entering bearing, described the
Two bearings 15 have the 3rd sealing member 16 preventing support Application of Viscera Oil from entering bearing；
Described sealing bearing is contact radial seal bearing, and sealing member is rotary shaft lip seal or Che Shi combination sealing (one-tenth
Big first " mechanical design handbook " volume 3-10-269, page 300)；
" bearing self seal is divided into contact and non-contacting seal by version.Radial seal can be divided into axial by contact
Seal.Single lip seal and double-lip seal can be divided into by the structure of sealing ring." (Liu Zejiu " rolling bearing application manual " page 593).
Claims (1)
1. a bearing grease lubrication dynamic balance involute three-ring speed reducer, including: support (1), output shaft (2), three ring flat-plates,
Two identical first, second parallel power shafts (12,14), external gear and ring gear, described three ring flat-plate capacity eccentric bearings divide
Be not bearing in relative on monosymmetric first, second power shaft of output shaft (2) (12,14), wherein first, second ring flat-plate (91,
92) both sides of middle ring flat-plate (10) it are arranged in, described first, second ring flat-plate (91,92) uniform thickness, first, second ring flat-plate (91,
92) first, second ring gear (51,52) and middle ring gear (6) and are assembled in the centre bore of middle ring flat-plate (10) respectively, described
The first external gear (41), central teeth wheel (13) and the second external gear being meshed with ring gear it is sequentially connected with on output shaft (2)
(42), the twice that middle ring flat-plate (10) thickness is first, second ring flat-plate (91,92) of described three ring flat-plates, described first external tooth
Wheel (41), the first ring gear (51) the facewidth equal with the first ring flat-plate (91) thickness, described second external gear (42), the second internal tooth
The facewidth of circle (52) is equal with the second ring flat-plate (92) thickness, described central teeth wheel (13), the facewidth and the centre of middle ring gear (6)
Ring flat-plate (10) thickness is equal, it is characterised in that:
On described first power shaft (12) sequentially device first seal bearing (A), the first spacer ring (a), the first eccentric bushing (81),
Two spacer rings (b), middle eccentric bushing (11), the 3rd spacer ring (c), the second eccentric bushing (82), the 4th spacer ring (d) and second seal bearing
(B), described first, second sealing bearing (A, B) is respectively placed in support (1) two side endoporus in order to support the first power shaft (12)；
The capacity eccentric bearing of described first ring flat-plate (91) includes that two the 3rd seal bearing (71) and are contained in brearing bore the first eccentric bushing
(81), the capacity eccentric bearing of described middle ring flat-plate (10) includes that four the 4th seal bearing (7) and the middle eccentric bushing being contained in brearing bore
(11), the capacity eccentric bearing of described second ring flat-plate (92) includes two the 5th the second bias sealing bearing (72) and be contained in brearing bore
Set (82), described first, second eccentric bushing (81,82) and middle eccentric bushing (11) phase contrast 180 °, described third and fourth and
Five sealings bearing (71,7 and 72) are same specification bearing, and described three eccentricity set (81,11,82) eccentric throw is identical；
Described output shaft (2) two ends are bearing in support (1) two side endoporus respectively with first, second bearing (3,15), and described first
Bearing (3) both sides have first, second sealing member (31,32) respectively, in order to prevent the outer dust of support, support Application of Viscera Oil from entering bearing,
Described second bearing (15) has the 3rd sealing member (16) preventing support Application of Viscera Oil from entering bearing；
Described sealing bearing is contact radial seal bearing, and described sealing member is rotary shaft lip seal or Che Shi combination sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408225.1A CN102996716B (en) | 2012-10-09 | Bearing grease lubrication dynamic balance involute three-ring speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408225.1A CN102996716B (en) | 2012-10-09 | Bearing grease lubrication dynamic balance involute three-ring speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102996716A CN102996716A (en) | 2013-03-27 |
| CN102996716B true CN102996716B (en) | 2016-11-30 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160919 Address after: Yueqing City, Zhejiang Province, 325603 white town in Wenzhou City, Tian Yang Road No. 3 Applicant after: Chen Wei Address before: Whitehead street in Zhejiang County of Pingyang Province town of Kunyang 325400 Building No. 4 room 761 Applicant before: Wu Xiaojie |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170607 Address after: 225401 Taixing, Sichuan Province, North Sichuan Road, No. 88, No. Patentee after: Shengzhou Mingzhi Technology Service Co., Ltd. Address before: Yueqing City, Zhejiang Province, 325603 white town in Wenzhou City, Tian Yang Road No. 3 Patentee before: Chen Wei |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171225 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: 225401 Taixing, Sichuan Province, North Sichuan Road, No. 88, No. Patentee before: Shengzhou Mingzhi Technology Service Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20181128 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 |