CN2375822Y - Oil and liquid lubricating device for electric hub speed reducer of electric bicycle - Google Patents

Oil and liquid lubricating device for electric hub speed reducer of electric bicycle Download PDF

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Publication number
CN2375822Y
CN2375822Y CN98250338U CN98250338U CN2375822Y CN 2375822 Y CN2375822 Y CN 2375822Y CN 98250338 U CN98250338 U CN 98250338U CN 98250338 U CN98250338 U CN 98250338U CN 2375822 Y CN2375822 Y CN 2375822Y
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CN
China
Prior art keywords
oil
gear
lubrication
seal
wheel hub
Prior art date
Application number
CN98250338U
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Chinese (zh)
Inventor
张天任
施力江
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中国人民解放军第四八一三工厂
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Priority to CN98250338U priority Critical patent/CN2375822Y/en
Application granted granted Critical
Publication of CN2375822Y publication Critical patent/CN2375822Y/en

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Abstract

The utility model belongs to an oil and liquid lubricating device for a gear speed reducer of an electric wheel hub of an electric bicycle. The utility model is characterized in that a sealing cavity, which is accommodated with a two-stage speed-reducing driving member of a gear, is arranged in an electric wheel hub and is composed of a front cover of a motor, an oil sealing ring, a gear box cover, a right half-axle assembly, a gear sleeve, a double-face sealing bearing, a plurality of standard and firm members, an oil sealing member, etc. The upper part of the cavity is provided with screw holes used for cleaning and feeding (change) oil, and proper lubricating oil is injected into the cavity. The oil and liquid lubricating device uses an oil-bath lubrication method, and realizes splash lubrication by gear transmission. Thus, the utility model can overcome the defect of the existing device with grease lubrication, avoid dry friction and improve the lubricating condition of the gear transmission with heavy load.

Description

A kind of electric bicycle electric wheel hub retarder oil lubrication device
The utility model relates to a kind of electric bicycle electric wheel hub, particularly relates to a kind of gear reducer oil lubrication device of electric bicycle electric wheel hub.
The modal driving mode of known domestic and international miscellaneous electric bicycle is nothing more than there being three kinds: directly driving, friction driving and gear drive.Be to utilize brushless external rotor formula direct current generator to slow down and can be with the operation of the direct driving wheel of low speed except that only a few at present, all the other all need could be to realize normally moving than the low speed driving wheel after slowing down.Friction drives and the gear reduction driving all belongs to deceleration.Now, domestic, external electric bicycle electric wheel hub production firm, at brushless inner rotor formula and the high rotating speed output characteristics that brush (iron core armature type, no iron core line drum formula, printing winding disc type) direct current generator is arranged, adopt the gear reduction driving mode mostly.Although they are not quite similar in selected gearing down part and topology layout, but all can be included into gear reduction and so on basically, and the main driving component in these reduction gears mechanism devices nearly all simply is lubricated with lubricating grease, and does not also have the lubricating fitting of sealing on the structure.In fact, this lubricating system is difficult to satisfy the requirement of use work, and owing to final dry friction causes gear early failue---gear life is short, is inevitable.Because all moving surfaces all exist various forms of frictions, wearing and tearing are results of surperficial phase mutual friction, and are lubricated then be a kind of effective measures that reduce abrasion, improve abrasion state.
The purpose of this utility model is all deficiencies and the drawback at existing electric bicycle electric wheel hub gear reduction lubricating status, a kind of new-type oil lubrication device is provided, utilize bath oiling, be conceived to set up hydrldynamic pressure lubrication, realize or approaching realization boundary lubrication, avoid dry friction, cool to improve gear-driven lubricating condition, to reach, scale removal, increase the service life, the purpose of damping noise reduction.
The utility model is realized by the following technical solutions:
In the electric wheel hub of electric bicycle electric wheel hub retarder oil lubrication device, set up a Seal cage (25) that can contain secondary gear gearing down part, this chamber is made up of motor protecgulum, tooth case lid, right axle shaft assembly, geared sleeve, bearing and some standard fastenerss, oil seal, be shaped on the chamber and can in the chamber, inject proper lubrication oil by this hole for the screw that cleans the usefulness of changing oil.
There is the groove that matches with the right axle shaft assembly right side of motor protecgulum (1) and can places the tooth block (1-1) of first order gear reduction driving component; Motor protecgulum (1) is matched by groove on their public junction planes and flange with right axle shaft assembly (14) and connects, tooth block (1-1) is connected with the tooth case lid (6) that can contain the two-stage gear drive, fill up therebetween with special oil seal (2), oil-impregnated bearing (19) is held or sealed to the right supporting of motor output shaft (18), the supporting of gear shaft (a 22) left side with the dual face seals profile shaft, (21) are complementary, and geared sleeve (16) and right axle shaft assembly (14) hold or seal oil-impregnated bearing (17), (15) the formation Seal cage that is complementary by the dual face seals profile shaft.
The firm screw that links each assembly that is useful on when constituting Seal cage all must add screw glue and give sealing.
Selected bearing must all be dual face seals type or sealing oil-impregnated bearing.
The lubricating oil product of selecting for use in its Seal cage is medium-sized EP gear oil, and its kinematical viscosity is not less than 90cst (50 ℃).
The utility model is compared as the oiling agent of the main driving component of gear reducer with lubricating grease with existing apparatus, and following characteristics are arranged:
Because existing most direct current generator is high-speed electric expreess locomotive, therefore its output speed adopts gear transmission mostly to carry out double reduction mostly in the 2500-3500r/min scope.The linear velocity at meshed transmission gear pitch circle place is in the 0.6-3m/s scope.Again since the motor output power mostly in the 130-230w scope; Its output torque is mostly in the 0.5-0.9N.m scope, so the calculating contact stress at meshed transmission gear pitch circle place is mostly in the 1000-15000MPa scope; The tooth root calculated stress is in the 200-700MPa scope.This just means that gear transmission is than the heavy load state.Existing with grease lubrication, be equivalent to the exposed gear transmission, and because retarder is airtight by among the wheel hub, after wearing and tearing appear in gear pair, a large amount of metal filings and the particle that may exist or produce stick in the lubricating grease owing to removing, and produce in esse metal abrasives thereby formed the flank of tooth, will aggravate the inordinate wear of gear teeth contact area, secondly, the lubricating grease at this place is also difficult changes and additional (mainly being the more difficult dismounting of Consumer); Moreover, because the high speed rotating of gear and the high-stress state that forms than heavy load, the temperature of working area also rises gradually, and does not have cooling measure, and these all will cause the grease dilution, fly stream, be difficult to maybe can't form the proper lubrication oil film, so that cause the dry friction of circular tooth contact, thereby more quickened the heel and toe wear of gear, temperature, vibration and noise also increase thereupon and rise, thereby make transmission quality and decrease in efficiency, the result causes gear-driven early failue.
As previously mentioned, the utility model is based on the bath lubrication principle, set up one dexterously with the Seal cage of oil for grease lubrication, the suitable line speeds of utilizing the gear rotation to produce, drive proper lubrication oil, spread, wash away, clean, cooling off each driving component comparatively ideally with the form of splashing, thereby all deficiencies and drawback have been overcome with grease lubrication, reach and improve gear-driven lubricating condition, cooling, cooling, scale removal, reduce wear, gram divides the bearing capacity of performance gear, improves transmission efficiency, increase the service life, and the effect of damping noise reduction.
Further introduce the utility model below in conjunction with accompanying drawing.
Accompanying drawing 1 is the structural representation that the two-stage involute cylindrical gear gearing down of electric wheel hub constitutes lubricating fitting.
Among the figure, 1 is the motor protecgulum, 1-1 is the tooth block, and 2 are oil seal washer, and 3,10 is Cross Recess Head Screw, 4,11 is normal type single coil spring lock washer, 5,12 is plain washer, and 6 is the tooth case lid, and 7,8,9 are respectively the Cross Recess Head Screw that tooth case lid upper oil hole is used, plain washer and oil sealing gasket, 13 is cross recessed countersunk head sscrew, and 14 is the right axle shaft assembly, and 15,17,19,21 hold or seal oil-impregnated bearing for the dual face seals profile shaft, 16 is geared sleeve (gearwheel), 18 is motor output shaft, and 20 is small gear, and 22 is gear shaft (small gear), 23 is plate gear, and 25 is Seal cage.
With reference to accompanying drawing, Seal cage of the present utility model (25), by motor protecgulum (1), oil seal washer (2), tooth case lid (6), right axle shaft assembly (14), geared sleeve (16), bearing (19), (21), (15), (17), firm of employing standard, oil seal link to be formed.Wherein: motor protecgulum (1) links with cross recessed countersunk head sscrew (13) with right axle shaft assembly (14), and sealing between two and coaxial centering thereof are matched by groove and the flange on their public junction planes; Pad links with oil seal washer (2) between protecgulum (1) and tooth case lid (6), with Cross Recess Head Screw (3), (10), spring washer (4), (11), plain washer (5), (12) tightening; The sealing at left end axial plane place is matched by bearing (19), (21) its corresponding axle journal, bearing saddle bore; The sealing of right-hand member realizes sealing by matching of the bearing saddle bore on bearing (15), (17) its corresponding right axle shaft axle journals (14), geared sleeve (16), the tooth case lid (6).
Bearing described in the utility model, be dual face seals type or sealing oil-impregnated bearing, both can keep the interior original lubricating grease of bearing not leak, lubricating oil in the Seal cage is entered in it, to destroy PERFORMANCE OF GREASES, more make it seal the possible passage of inner chamber and exocoel, prevent the leakage of lubricant oil.
Described proper lubrication oil comprises oil product and oil mass, and its oil product adopts the medium-sized EP gear oil more than No. 90, and promptly its kinematical viscosity is for being not less than 90cst (50 ℃) person.This oil is added with an amount of extreme pressure agent, so it has advantages of high bearing capacity, and because of having added antioxygen, anti-bubble, additive such as antirust, so its oxidation stability, anti-corrosive properties and rust protection etc. are all good than non-EP gear oil.In addition, the service test that this oil product carries out in enclosed gear drives such as metallurgy, colliery, cement plant, thermoelectricity plant, chemical fertilizer factory, chemical fibre factory proves that it is functional, is applicable to the lubricating condition of various gear drives than heavy load.Its oil mass, in fuel head: for secondary gear reducer, be immersed in the pasta with gearwheel, the darkest is 3 times of tooth depths, and the most shallow 1/2 tooth depth that is about is advisable, but the maximum oil face should be lower than below the race diameter of dual face seals bearing (21).
Described for the oilhole structure of cleaning the usefulness of changing oil, tie up to tooth case lid (6) top and open screw Cross Recess Head Screw (7), plain washer (8), oil sealing gasket (9) to constitute robust sealed.
The used seal approach of described various fastening piece means in forming above-mentioned Seal cage process, the fastening piece that links fastening each associated components that is useful on, when connection is tightened, all must add screw glue and give sealing, guarantee the sealing of oil pocket, in case splashing of fluid overflowed and seepage.
Described screw glue is selected happy safe 242 glue for use.

Claims (5)

1. electric bicycle electric wheel hub retarder oil lubrication device, it is characterized in that: in electric wheel hub, set up a Seal cage (25) that can contain secondary gear gearing down part, this chamber is made up of motor protecgulum, tooth case lid, right axle shaft assembly, geared sleeve, bearing and some standard fastenerss, oil seal, be shaped on the chamber and can in the chamber, inject proper lubrication oil by this hole for the screw that cleans the usefulness of changing oil.
2. electric wheel hub retarder oil lubrication device according to claim 1 is characterized in that: there is the groove that matches with the right axle shaft assembly right side of motor protecgulum (1) and can places the tooth block (1-1) of first order gear reduction driving component; Motor protecgulum (1) is matched by groove on their public junction planes and flange with right axle shaft assembly (14) and connects, tooth block (1-1) is connected with the tooth case lid (6) that can contain the two-stage gear drive, fill up therebetween with special oil seal (2), oil-impregnated bearing (19) is held or sealed to the right supporting of motor output shaft (18), the supporting of gear shaft (a 22) left side with the dual face seals profile shaft, (21) are complementary, and geared sleeve (16) and right axle shaft assembly (14) hold or seal oil-impregnated bearing (17), (15) the formation Seal cage that is complementary by the dual face seals profile shaft.
3. gear reducer oil lubrication device according to claim 1 is characterized in that: the firm screw that links each assembly that is useful on when constituting Seal cage all must add screw glue and give sealing.
4. gear reducer oil lubrication device according to claim 1 is characterized in that: selected bearing must all be dual face seals type or sealing oil-impregnated bearing.
5. gear reducer oil lubrication device according to claim 1 is characterized in that: the lubricating oil product of selecting for use in its Seal cage is medium-sized EP gear oil, and its kinematical viscosity is not less than 90cst (50 ℃).
CN98250338U 1998-12-24 1998-12-24 Oil and liquid lubricating device for electric hub speed reducer of electric bicycle CN2375822Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98250338U CN2375822Y (en) 1998-12-24 1998-12-24 Oil and liquid lubricating device for electric hub speed reducer of electric bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN98250338U CN2375822Y (en) 1998-12-24 1998-12-24 Oil and liquid lubricating device for electric hub speed reducer of electric bicycle

Publications (1)

Publication Number Publication Date
CN2375822Y true CN2375822Y (en) 2000-04-26

Family

ID=33994854

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98250338U CN2375822Y (en) 1998-12-24 1998-12-24 Oil and liquid lubricating device for electric hub speed reducer of electric bicycle

Country Status (1)

Country Link
CN (1) CN2375822Y (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102330808A (en) * 2011-07-12 2012-01-25 许晓华 Improved structure of reduction box
CN102979856A (en) * 2012-11-17 2013-03-20 吴小杰 Bearing-grease lubricating wind-power conical and cycloidal yawing speed reducer
CN102996765A (en) * 2012-09-11 2013-03-27 吴小杰 Bearing grease lubrication SEW-F series speed reducer
CN102996773A (en) * 2012-09-11 2013-03-27 吴小杰 Bearing grease lubricated SEW S-series speed reducer
CN102996772A (en) * 2012-09-11 2013-03-27 吴小杰 Bearing grease lubricated SEW K-series speed reducer
CN102996719A (en) * 2012-10-09 2013-03-27 吴小杰 Grease lubricated special planet speed reducer for roller table for bearing
CN102996775A (en) * 2012-10-09 2013-03-27 吴小杰 Grease lubricated star wheel speed reducer for bearing
CN103062377A (en) * 2012-09-11 2013-04-24 吴小杰 R-series speed reducer of SEW and with grease lubricated bearings
CN103075469A (en) * 2012-10-09 2013-05-01 吴小杰 Grease lubrication dynamic balance reduction gear of rocket launching pad bearing
CN103089929A (en) * 2012-11-03 2013-05-08 吴小杰 Bearing grease lubrication megawatt-level quasi satellite semi-direct-driving wind power acceleration box
CN103089927A (en) * 2012-11-03 2013-05-08 吴小杰 Quasi satellite speed reduction box of bearing grease lubrication nuclear power station cooling pump
CN103195874A (en) * 2012-10-09 2013-07-10 吴小杰 Grease-lubrication bearing speed reducer for rocket launching platform
CN103791041A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power speed increasing gearbox with bearings lubricated by grease
CN103791044A (en) * 2012-10-30 2014-05-14 吴小杰 Special planetary gear box with bearings lubricated by grease for high-power tubular pump
CN103791033A (en) * 2012-10-30 2014-05-14 吴小杰 Duplex double-arm type wind power speed increasing gearbox with bearings lubricated by grease
CN103791038A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power speed increasing gear box with bearings lubricated by grease
CN103791040A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power speed increasing gear box with high power and bearings lubricated by grease
CN103791036A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power generation yawing gear box with bearings lubricated by grease
CN103791034A (en) * 2012-10-30 2014-05-14 吴小杰 Two-stage planetary wind power speed increasing gearbox with bearings lubricated by grease
CN103791030A (en) * 2012-10-30 2014-05-14 吴小杰 Rail transit gear box with bearings lubricated by grease
CN104565319A (en) * 2013-10-18 2015-04-29 无锡爱奇克发动机有限公司 Variable-gear motor gearbox structure of electric bicycle

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102330808A (en) * 2011-07-12 2012-01-25 许晓华 Improved structure of reduction box
CN102996772B (en) * 2012-09-11 2016-08-03 嵊州明智科技服务有限公司 The K series reduction of bearing grease lubrication SEW
CN102996765A (en) * 2012-09-11 2013-03-27 吴小杰 Bearing grease lubrication SEW-F series speed reducer
CN102996773A (en) * 2012-09-11 2013-03-27 吴小杰 Bearing grease lubricated SEW S-series speed reducer
CN102996772A (en) * 2012-09-11 2013-03-27 吴小杰 Bearing grease lubricated SEW K-series speed reducer
CN102996765B (en) * 2012-09-11 2016-02-03 吴小杰 Bearing grease lubrication parallel axes series reduction
CN102996773B (en) * 2012-09-11 2016-03-09 吴小杰 The right-angle drive speed reducer of bearing grease lubrication
CN103062377A (en) * 2012-09-11 2013-04-24 吴小杰 R-series speed reducer of SEW and with grease lubricated bearings
CN103062377B (en) * 2012-09-11 2016-02-03 吴小杰 Bearing grease lubrication helical gear series reduction
CN103075469A (en) * 2012-10-09 2013-05-01 吴小杰 Grease lubrication dynamic balance reduction gear of rocket launching pad bearing
CN102996775A (en) * 2012-10-09 2013-03-27 吴小杰 Grease lubricated star wheel speed reducer for bearing
CN102996775B (en) * 2012-10-09 2016-02-03 吴小杰 Bearing grease lubrication planetary-gear speed reducer
CN103195874A (en) * 2012-10-09 2013-07-10 吴小杰 Grease-lubrication bearing speed reducer for rocket launching platform
CN102996719A (en) * 2012-10-09 2013-03-27 吴小杰 Grease lubricated special planet speed reducer for roller table for bearing
CN103075469B (en) * 2012-10-09 2016-08-17 陈伟 Grease lubrication dynamic balance reduction gear of rocket launching pad bearing
CN103791038A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power speed increasing gear box with bearings lubricated by grease
CN103791040A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power speed increasing gear box with high power and bearings lubricated by grease
CN103791036A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power generation yawing gear box with bearings lubricated by grease
CN103791034A (en) * 2012-10-30 2014-05-14 吴小杰 Two-stage planetary wind power speed increasing gearbox with bearings lubricated by grease
CN103791030A (en) * 2012-10-30 2014-05-14 吴小杰 Rail transit gear box with bearings lubricated by grease
CN103791044A (en) * 2012-10-30 2014-05-14 吴小杰 Special planetary gear box with bearings lubricated by grease for high-power tubular pump
CN103791033A (en) * 2012-10-30 2014-05-14 吴小杰 Duplex double-arm type wind power speed increasing gearbox with bearings lubricated by grease
CN103791041A (en) * 2012-10-30 2014-05-14 吴小杰 Wind power speed increasing gearbox with bearings lubricated by grease
CN103089927A (en) * 2012-11-03 2013-05-08 吴小杰 Quasi satellite speed reduction box of bearing grease lubrication nuclear power station cooling pump
CN103089929A (en) * 2012-11-03 2013-05-08 吴小杰 Bearing grease lubrication megawatt-level quasi satellite semi-direct-driving wind power acceleration box
CN102979856A (en) * 2012-11-17 2013-03-20 吴小杰 Bearing-grease lubricating wind-power conical and cycloidal yawing speed reducer
CN104565319A (en) * 2013-10-18 2015-04-29 无锡爱奇克发动机有限公司 Variable-gear motor gearbox structure of electric bicycle

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Patentee after: Xuzhou Zhongyi electromechanical Co., Ltd.

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