CN103195874A - Grease-lubrication bearing speed reducer for rocket launching platform - Google Patents

Grease-lubrication bearing speed reducer for rocket launching platform Download PDF

Info

Publication number
CN103195874A
CN103195874A CN2012104082730A CN201210408273A CN103195874A CN 103195874 A CN103195874 A CN 103195874A CN 2012104082730 A CN2012104082730 A CN 2012104082730A CN 201210408273 A CN201210408273 A CN 201210408273A CN 103195874 A CN103195874 A CN 103195874A
Authority
CN
China
Prior art keywords
bearing
stuffing box
sealing
bearings
speed reducer
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.)
Granted
Application number
CN2012104082730A
Other languages
Chinese (zh)
Other versions
CN103195874B (en
Inventor
吴声震
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Tailong Decelerator Machinery Co Ltd
Original Assignee
吴小杰
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 吴小杰 filed Critical 吴小杰
Priority to CN201210408273.0A priority Critical patent/CN103195874B/en
Publication of CN103195874A publication Critical patent/CN103195874A/en
Application granted granted Critical
Publication of CN103195874B publication Critical patent/CN103195874B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to the technical field of speed reducers dedicated for rocket launching platforms, in particular to a grease-lubrication bearing speed reducer for a rocket launching platform. The speed reducer comprises a bevel gear pair and an involute drive member with a small tooth difference, and is characterized in that the shaft neck of a small bevel gear shaft is supported in a flange hole in an auxiliary frame by a first sealing bearing and a second sealing bearing; a space ring and a thrust bearing are arranged in front of the second sealing bearing sequentially; an input shaft is supported in a center hole of the auxiliary frame by two third sealing bearings provided with space rings; a first eccentric bearing comprises two fourth sealing bearings and a first eccentric bushing; a second eccentric bearing comprises two fifth sealing bearings and a second eccentric bushing; an output shaft is supported in an inner hole of a main frame by a sixth sealing bearing and a seventh sealing bearing which are provided with space rings; and a sealing piece is mounted in front of the seventh sealing bearing. The grease-lubrication bearing speed reducer has the benefits that bearings can operate reliably, so that the service life of the speed reducer is long, and the noise is low.

Description

Rocket launching platform bearing grease lubrication speed reducer
[technical field] relates to rocket launching pad retarder technical field, a kind of rocket launching platform bearing grease lubrication dynamic balancing speed reducer.
[background technique] (1) " rocket movable launcher supporting arm speed reducer " (20091072401.4); (2) rocket movable launcher awl tooth-double pendulum speed reducer (201010271003.0).Subject matter is: when gear oil lubricated rolling bearing and involute gear engagement pair at the same time, because sliding friction can make gear oil very fast dirty, damage of bearings caused retarder to hinder left alone without help machine for some reason.
K series helix conic reducer rate of fault when being applied to the rotary-brush type aerator of SEW company is very high, Zhejiang leather company sewage-farm, aerator adapted Zhejiang * * K of speed reducer company series retarder uses less than two months bad, change new badly again soon, conscientiously check, analyze after tearing machine open, reason is to bore tooth and is positioned at highest point, the lubricant oil that splashes is difficult to lubricated rolling bearing, make bearing just thirsty oily early, the retainer fracture, the steel ball that is scattered makes the bevel gear snaggletooth again.
" the retarder fault accounts for 40% in the coal mine equipment fault.Bearing is the part in addition 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." " destruction reason and the processing method of mining retarder "
" the bearing wheels tooth surface is bearing multi-form stress effect 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 damage of the heavy-duty gear flank of tooth 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 enters that lubricated lipid degenerates gradually behind the bearing inside, produces 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 last 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 there being active force to cause with relative slip 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 bearing with grease lubrication (or not containing additive mineral oil) in theory, 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 (as gear) is when using oil lubrication in addition, bearing is just used oil lubrication." 921 pages: " ... Lubrication of Rolling Contact Bearing is general with the mineral oil that does not contain additive ";
(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/T0017-1990 L-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 rocket launching platform bearing grease lubrication dynamic balancing speed reducer of long service life.
Before being bearing in first, second stuffing box bearing, the axle journal of [technological scheme] bevel pinion in the support convex marginal pore, installs spacer ring, thrust-bearing before second stuffing box bearing successively; Input shaft is bearing in the preceding support center hole with two the 3rd stuffing box bearings that spacer ring is arranged, first capacity eccentric bearing of both sides comprises two the 4th stuffing box bearings and is contained in first eccentric bushing of brearing bore, the second middle capacity eccentric bearing comprises four the 5th stuffing box bearings and is contained in two second eccentric bushings of stuffing box bearing endoporus, eight stuffing box bearings are same specification bearing, and four eccentric bushings are measure-alike; Output shaft is bearing in the support endoporus with two the 6th stuffing box bearings of band spacer ring, Sealing is housed in order to dustproof before the 6th stuffing box bearing; Described stuffing box bearing is contact-type radial seal bearing, and as RK or RS or HMS (A) or MHS (A) type, described Sealing is rotary shaft lip seal or Che Shi combination seal.
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 is strict, safeguard the repairing difficulty, the place of additional seal device is adopted in inconvenience, can preferentially select stuffing box bearing for use.”
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 1=1000rpm, NAD:i=6.3, n=158.7rpm, NBD:i=40, n=25rpm change the fat cycle
[beneficial effect] technique effect is that 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 rocket launching pad bearing grease lubricates the dynamic balancing speed reducer, comprise main machine base 20, few tooth difference driving component in the main machine base 20, bevel gear pair in auxiliary engine bed 1 and the auxiliary engine bed 1, described few tooth difference driving component comprises main machine base 20, input shaft 4, first planet wheel 21, middle planetary 15, second planet wheel 22, be contained in three capacity eccentric bearings on the input shaft 4, ring gear 23 and W output mechanism, 180 ° of described both sides capacity eccentric bearing and middle capacity eccentric bearing phase differences, described middle planetary take turns 15 thickness be both sides identical first, second planet wheel 21, the twice of 22 thickness, described W output mechanism comprises output shaft 18), pin 14 and column sleeve, described bevel gear pair comprises bevel gear wheel 3 and two symmetrical mounting small coning gear shafts 2 that are engaged with, 6, described small coning gear shaft 6 input ends connect motor, described small coning gear shaft 2 spindle noses connect manual handle, described bevel gear wheel 3 is connected in the input end of input shaft 12, described auxiliary engine bed 1, ring gear 23 and main machine base 20 connect one in turn, it is characterized in that:
The axle journal of described bevel pinion 6 is bearing in the auxiliary engine bed 1 convex marginal pore with first, second stuffing box bearing 7,8, installs spacer ring 9, thrust-bearing 10 successively before second stuffing box bearing 8;
Described input shaft 4 usefulness have two the 3rd stuffing box bearings 5 of spacer ring to be bearing in auxiliary engine bed 1 center hole;
Described first capacity eccentric bearing comprises two the 4th stuffing box bearings 121 and is contained in first eccentric bushing 111 of brearing bore, described middle capacity eccentric bearing comprises four the 5th stuffing box bearings 14 and is contained in the middle eccentric bushing 13 of stuffing box bearing endoporus, described second capacity eccentric bearing comprises two the 6th stuffing box bearings 121 and is contained in second eccentric bushing 111 of brearing bore, eight stuffing box bearings are same specification bearing, and three eccentric bushing throw of eccentric equate;
Two the 7th stuffing box bearings 17 of described output shaft 18 usefulness band spacer ring are bearing in support 20 endoporus, Sealing 19 are housed in order to dustproof before described the 7th stuffing box bearing 17;
Described stuffing box bearing is contact-type radial seal bearing, and 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. rocket launching platform bearing grease lubrication speed reducer, comprise main machine base (15), few tooth difference driving component in the main machine base (15), bevel gear pair in auxiliary engine bed (1) and the auxiliary engine bed (1), described few tooth difference driving component comprises main machine base (15), input shaft (4), first, second planetary pinion (21,22), be contained in first on the input shaft (4), second capacity eccentric bearing, ring gear (23) and W output mechanism, 180 ° of described two capacity eccentric bearing phase differences, described W output mechanism comprises output shaft (18), pin (14) and column sleeve, described bevel gear wheel (3) is connected in the input end of input shaft (12), described bevel gear pair comprises auxiliary engine bed (1), first of bevel gear wheel (3) and symmetrical mounting, second bevel pinion (2,6), described first bevel pinion (2) spindle nose connects manual handle, described second bevel pinion (2) spindle nose connects motor, described auxiliary engine bed (1), ring gear (23) and main machine base (15) connect one in turn, it is characterized in that:
The axle journal of described small coning gear shaft (6) is bearing in auxiliary engine bed (1) the convex marginal pore with first, second stuffing box bearing (7,8), and second stuffing box bearing (8) installs spacer ring (9), thrust-bearing (10) before successively;
Described input shaft (4) is with there being two the 3rd stuffing box bearings (5) of spacer ring to be bearing in auxiliary engine bed (1) center hole, described first capacity eccentric bearing comprises two the 4th stuffing box bearings (12) and is contained in first eccentric bushing (11) of brearing bore that described two capacity eccentric bearings comprise two the 5th stuffing box bearings (20) and are contained in second eccentric bushing (13) of brearing bore;
Described output shaft (18) is bearing in main machine base (15) endoporus with the 6th, the 7th stuffing box bearing (16,17) of band spacer ring, and described the 7th stuffing box bearing (17) is equipped with Sealing (19) before in order to dustproof;
Described stuffing box bearing is contact-type radial seal bearing, and as RK or RS or HMS (A) or MHS (A) type, described Sealing is rotary shaft lip seal or Che Shi combination seal.
CN201210408273.0A 2012-10-09 2012-10-09 Rocket launch platform bearing grease lubrication speed reducer Active CN103195874B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210408273.0A CN103195874B (en) 2012-10-09 2012-10-09 Rocket launch platform bearing grease lubrication speed reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210408273.0A CN103195874B (en) 2012-10-09 2012-10-09 Rocket launch platform bearing grease lubrication speed reducer

Publications (2)

Publication Number Publication Date
CN103195874A true CN103195874A (en) 2013-07-10
CN103195874B CN103195874B (en) 2016-03-16

Family

ID=48718605

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210408273.0A Active CN103195874B (en) 2012-10-09 2012-10-09 Rocket launch platform bearing grease lubrication speed reducer

Country Status (1)

Country Link
CN (1) CN103195874B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728353A (en) * 2014-06-28 2015-06-24 吴小杰 Box body interlayer water cooling high thermal power reduction box with small tooth difference
CN104747658A (en) * 2015-03-06 2015-07-01 吴小杰 Zero-return-difference involute small-tooth-difference reduction box

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR100966915B1 (en) * 2010-03-11 2010-06-30 한월숙 A speed reducer of a detailed planetary gear
CN101963208A (en) * 2010-08-27 2011-02-02 吴声震 Bevel gear-double cycloid speed reduction device for rocket launching movable platform
CN201818762U (en) * 2010-09-03 2011-05-04 杭州建明传动机械有限公司 Speed reducer with strong sealing property
CN102442731A (en) * 2011-04-02 2012-05-09 吴小杰 Cone-cycloid speed reducer for rotary brush type aerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR100966915B1 (en) * 2010-03-11 2010-06-30 한월숙 A speed reducer of a detailed planetary gear
CN101963208A (en) * 2010-08-27 2011-02-02 吴声震 Bevel gear-double cycloid speed reduction device for rocket launching movable platform
CN201818762U (en) * 2010-09-03 2011-05-04 杭州建明传动机械有限公司 Speed reducer with strong sealing property
CN102442731A (en) * 2011-04-02 2012-05-09 吴小杰 Cone-cycloid speed reducer for rotary brush type aerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728353A (en) * 2014-06-28 2015-06-24 吴小杰 Box body interlayer water cooling high thermal power reduction box with small tooth difference
CN104747658A (en) * 2015-03-06 2015-07-01 吴小杰 Zero-return-difference involute small-tooth-difference reduction box

Also Published As

Publication number Publication date
CN103195874B (en) 2016-03-16

Similar Documents

Publication Publication Date Title
CN102996780A (en) Grease lubricated star wheel speed reducer for bearing
CN102996775B (en) Bearing grease lubrication planetary-gear speed reducer
CN102996745B (en) The special low speed planet retarder of bearing grease lubrication roller-way
CN102979894B (en) Bearing grease lubricates large-scale star-wheel gear-box
CN102979875B (en) Bearing grease lubricates large-scale cycloid in planet speed regulator
CN103089928A (en) Bearing grease lubrication megawatt-level ten-shunting wind power acceleration box
CN103195874B (en) Rocket launch platform bearing grease lubrication speed reducer
CN102996722A (en) Bearing-grease-lubrication large-torque cycloid reduction gearbox
CN103791034A (en) Two-stage planetary wind power speed increasing gearbox with bearings lubricated by grease
CN204828624U (en) Forklift driving axle housing wheel limit planet wheel subassembly structure
CN103075469B (en) Grease lubrication dynamic balance reduction gear of rocket launching pad bearing
CN102979856A (en) Bearing-grease lubricating wind-power conical and cycloidal yawing speed reducer
CN103001394B (en) Bearing grease lubrication hybrid permanent magnet pumping-unit motor
CN103089927B (en) Bearing grease lubrication nuclear power station coolant pump quasi-planetary speed reduction box
CN102996774B (en) Bearing-grease-lubridynamic-balance dynamic-balance cycloid tricyclic reduction gearbox
CN102996773B (en) The right-angle drive speed reducer of bearing grease lubrication
CN102996765B (en) Bearing grease lubrication parallel axes series reduction
CN102996729B (en) Grease lubricated large star wheel speed controller for bearing
CN102979888A (en) Bearing grease lubrication worm gear speed reducer of industrial robot
CN102996772B (en) The K series reduction of bearing grease lubrication SEW
CN102996719B (en) Bearing grease lubrication planetary speed reducer specially for roller way
CN103791030A (en) Rail transit gear box with bearings lubricated by grease
CN103062377B (en) Bearing grease lubrication helical gear series reduction
CN102996718A (en) Bearing grease lubricated NGW quasi planetary transmission device
CN102996776B (en) The large-scale star wheel gear box of bearing grease lubrication

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 225325 Baima Industrial Park, Baima Town, Taizhou, Jiangsu

Patentee after: Wu Xiaojie

Address before: 325400 room 761, building 4, Baishi street, Kunyang Town, Pingyang, Zhejiang

Patentee before: Wu Xiaojie

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20181204

Address after: 225400 No. 88 Daqing East Road, Taixing, Taizhou, Jiangsu.

Patentee after: Tailong Decelerating Machine Co., Ltd., Jiangsu

Address before: 225325 Baima Industrial Park, Baima Town, Taizhou, Jiangsu

Patentee before: Wu Xiaojie