CN2486362Y

CN2486362Y - Hub motor driven of electric bicycle

Info

Publication number: CN2486362Y
Application number: CN 01244967
Authority: CN
Inventors: 王清华; 贺先兵
Original assignee: SUZHOU SMALL ANTELOPE ELECTRIC BICYCLE CO Ltd
Current assignee: SUZHOU SMALL ANTELOPE ELECTRIC BICYCLE CO Ltd
Priority date: 2001-07-19
Filing date: 2001-07-19
Publication date: 2002-04-17
Anticipated expiration: 2011-07-19

Abstract

The utility model discloses a wheel hub motor driven device of an electric bicycle, comprising a wheel shaft and a wheel hub. The inner part of the wheel hub is provided with a disc type winding plastic sealing motor which is engaged with a planet wheel retarding mechanism through circumference inner wheel strips and sun-wheel gears. The planet wheel retarding mechanism is fixed on a clutch which is connected and fixed with the wheel hub. The utility model greatly improves the lubrication condition of the wheel gear and prolongs the service life of the wheel gear to more than 3000 hours, which satisfies the using requirement of an electric bicycle. The utility model adopts a general shaft structure, the machining precision of parts is easy to be ensured, and the noise of running is improved obviously.

Description

The electric bicycle hub motor driving device

The utility model relates to a kind of Electrical Bicycle.

Wheel hub of electric bicycle in the market generally adopts printed motor or compacting motor as power, be delivered on the wheel hub after the deceleration through the two-stage gear, its shortcoming is that the lubricating condition of gear is poor, and the service life of gear is short, is generally about 500 hours, and, this kind structure mostly is the semiaxis structure, promptly the wheel rear axle by about two sections form, therefore, the requirement on machining accuracy of parts than higher, otherwise is easy to generate noise in use.

The purpose of this utility model is: a kind of electric bicycle hub motor driving device is provided, it is made up of disc type winding electric machine, satellite gear speed reduction gearing, power-transfer clutch three parts, improved the lubricating condition of gear greatly, the work life of gear was brought up to more than 3000 hours, can satisfy the operating needs of Electrical Bicycle, and adopted the axis structure, the working accuracy of parts is easy to guarantee that the noise that travels has obtained tangible improvement.

The technical solution of the utility model is: a kind of electric bicycle hub motor driving device, comprise wheel shaft, by the wheel hub of bearing fixing on wheel shaft, described wheel shaft is an axis, be provided with disc type winding plastic packaging motor in the wheel hub, disc type winding plastic packaging motor is engaged with the satellite gear speed reduction gearing by tooth bar in the circumference and sun wheel, the satellite gear speed reduction gearing is fixed on the power-transfer clutch, and power-transfer clutch and wheel hub are connected and fixed.

The further technical scheme of the utility model is: a kind of electric bicycle hub motor driving device, comprise wheel shaft, by the wheel hub of bearing fixing on wheel shaft, described wheel shaft is an axis, be provided with disc type winding plastic packaging motor in the wheel hub, disc type winding plastic packaging motor is engaged with the satellite gear speed reduction gearing by tooth bar in the circumference and sun wheel, the satellite gear speed reduction gearing is fixed on the power-transfer clutch, and power-transfer clutch and wheel hub are connected and fixed; Described disc type winding plastic packaging motor comprises the end cap that is fixed on the wheel shaft, be fixed with the disc type stator on the end cap, the air gap both sides of disc type stator are fixed with magnetic conductive disk and magnet steel dish respectively, the centre of magnetic conductive disk and magnet steel dish is a disk rotor, disk rotor is fixed on the rotor bushing, rotor bushing by bearing fixing on wheel shaft, the end of rotor bushing is fixed with the sun wheel that is enclosed within on the wheel shaft, the periphery of disc type stator is fixed with tooth bar in the circumference, end cap is provided with the carbon brush that inserts from the side, the commutator contact matching on carbon brush and the disk rotor; Described satellite gear speed reduction gearing comprise with circumference in tooth bar and three planetary wheels of sun wheel ingear, on gear wheel shaft, gear wheel shaft is fixed on the pinion carrier planetary wheel by bearing fixing, on the pinion carrier fixed clutch; Described power-transfer clutch comprises and the fixing unilateral bearing of satellite gear speed reduction gearing that unilateral bearing is fixed on the lining, and lining is enclosed within on the wheel shaft and with wheel hub and is connected and fixed; The both sides circle centre position of described wheel hub is fixed with axle sleeve, is provided with bearing between axle sleeve and the wheel shaft, and axle sleeve is fixing by being threaded with the lining on the power-transfer clutch.

The utility model has the advantages that:

1. because motor of the present utility model adopts disc type winding plastic packaging motor, speed reduction gearing to adopt satellite gear speed reduction gearing, power-transfer clutch to adopt unilateral bearing, make wheel shaft can adopt the axis structure, thereby the working accuracy that makes parts is easy to guarantee that the noise that travels has obtained tangible improvement.

2. the utility model has improved the lubricating condition of gear greatly, and the work life of gear was brought up to more than 3000 hours, can satisfy the operating needs of Electrical Bicycle.

The utility model will be further described below in conjunction with drawings and Examples:

Fig. 1 is a structural representation of the present utility model;

Wherein: 1 wheel shaft; 2 wheel hubs; 3 bearings; 4 disc type winding plastic packaging motors; Tooth bar in 5 circumference; 6 sun wheels; 7 satellite gear speed reduction gearings; 8 power-transfer clutchs; 9 end caps; 10 disc type stators; 11 air gaps; 12 magnetic conductive disks; 13 magnet steel dish dishes; 14 disk rotors; 15 rotor bushings; 16 carbon brush; 17 planetary wheels; 18 gear wheel shafts; 19 pinion carriers; 20 unilateral bearings; 21 linings; 22 axle sleeves; 23 commutators.

Embodiment: as shown in the figure, a kind of electric bicycle hub motor driving device, comprise wheel shaft [1], be fixed on wheel hub [2] on the wheel shaft [1] by bearing [3], described wheel shaft [1] is an axis, be provided with disc type winding plastic packaging motor [4] in the wheel hub [2], disc type winding plastic packaging motor [4] is engaged with satellite gear speed reduction gearing [7] by tooth bar [5] in the circumference and sun wheel [6], and satellite gear speed reduction gearing [7] is fixed on the power-transfer clutch [8], and power-transfer clutch [8] is connected and fixed with wheel hub [2]; Described disc type winding plastic packaging motor [4] comprises the end cap [9] that is fixed on the wheel shaft [1], be fixed with disc type stator [10] on the end cap [9], air gap [11] both sides of disc type stator [10] are fixed with magnetic conductive disk [12] and magnet steel dish [13] respectively, the centre of magnetic conductive disk [12] and magnet steel dish [13] is provided with disk rotor [14], disk rotor [14] is fixed on the rotor bushing [15], rotor bushing [15] is fixed on the wheel shaft [1] by bearing [3], the end of rotor bushing [15] is fixed with the sun wheel [6] that is enclosed within on the wheel shaft [1], the periphery of disc type stator [10] is fixed with tooth bar [5] in the circumference, end cap [9] is provided with the carbon brush [16] that inserts from the side, commutator [23] contact matching on carbon brush [16] and the disk rotor [14]; Described satellite gear speed reduction gearing [7] comprise with circumference in tooth bar [5] and sun wheel [6] three planetary wheels of ingear [17], planetary wheel [17] is fixed on the gear wheel shaft [18] by bearing [3], gear wheel shaft [18] is fixed on the pinion carrier [19], on pinion carrier [19] the socket fixed clutch [8]; Described power-transfer clutch [8] comprises and the fixing unilateral bearing [20] of satellite gear speed reduction gearing [7] that unilateral bearing [20] is fixed on the lining [21], and lining [21] is enclosed within wheel shaft [1] and goes up and be connected and fixed with wheel hub [2]; The both sides circle centre position of described wheel hub [2] is fixed with axle sleeve [22], is provided with bearing [3] between axle sleeve [22] and the wheel shaft [1], and axle sleeve [22] is fixing by being threaded with the lining [21] on the power-transfer clutch [8].

Because motor of the present utility model adopts disc type winding plastic packaging motor [4], speed reduction gearing to adopt satellite gear speed reduction gearing [7], power-transfer clutch [8] to adopt unilateral bearing [20], make wheel shaft [1] can adopt the axis structure, thereby the working accuracy that makes parts is easy to guarantee that the noise that travels has obtained tangible improvement; The utility model has improved the lubricating condition of gear greatly, and the work life of gear was brought up to more than 3000 hours, can satisfy the operating needs of Electrical Bicycle.

Claims

1. electric bicycle hub motor driving device, comprise wheel shaft [1], be fixed on wheel hub [2] on the wheel shaft [1] by bearing [3], it is characterized in that: described wheel shaft [1] is an axis, be provided with disc type winding plastic packaging motor [4] in the wheel hub [2], disc type winding plastic packaging motor [4] is engaged with satellite gear speed reduction gearing [7] by tooth bar [5] in the circumference and sun wheel [6], satellite gear speed reduction gearing [7] is fixed on the power-transfer clutch [8], and power-transfer clutch [8] is connected and fixed with wheel hub [2].

2. electric bicycle hub motor driving device according to claim 1, it is characterized in that: described disc type winding plastic packaging motor [4] comprises the end cap [9] that is fixed on the wheel shaft [1], be fixed with disc type stator [10] on the end cap [9], air gap [11] both sides of disc type stator [10] are fixed with magnetic conductive disk [12] and magnet steel dish [13] respectively, the centre of magnetic conductive disk [12] and magnet steel dish [13] is provided with disk rotor [14], disk rotor [14] is in being fixed on the rotor bushing [15], rotor bushing [15] is fixed on the wheel shaft [1] by bearing [3], the end of rotor bushing [15] is fixed with the sun wheel [6] that is enclosed within on the wheel shaft [1], the periphery of disc type stator [10] is fixed with tooth bar [5] in the circumference, end cap [9] is provided with the carbon brush [16] that inserts from the side, commutator [23] contact matching on carbon brush [16] and the disk rotor [14].

3. electric bicycle hub motor driving device according to claim 1, it is characterized in that: described satellite gear speed reduction gearing [7] comprise with circumference in tooth bar [5] and sun wheel [6] three planetary wheels of ingear [17], planetary wheel [17] is fixed on the gear wheel shaft [18] by bearing [3], gear wheel shaft [18] is fixed on the pinion carrier [19], on pinion carrier [19] the socket fixed clutch [8].

4. electric bicycle hub motor driving device according to claim 1, it is characterized in that: described power-transfer clutch [8] comprises and the fixing unilateral bearing [20] of satellite gear speed reduction gearing [7], unilateral bearing [20] is fixed on the lining [21], and lining [21] is enclosed within wheel shaft [1] and goes up and be connected and fixed with wheel hub [2].

5. according to claim 1 or 4 described electric bicycle hub motor drivings device, it is characterized in that: the both sides circle centre position of described wheel hub [2] is fixed with axle sleeve [22], be provided with bearing [3] between axle sleeve [22] and the wheel shaft [1], axle sleeve [22] is fixing by being threaded with the lining [21] on the power-transfer clutch [8].