CN204021166U - Front-wheel main shaft Direct Driving System - Google Patents

Abstract

A kind of front-wheel main shaft Direct Driving System, there is gear-type overrunning clutch, gear accelerator, drive a few part of gear disc crank, drive shaft and bearing to form, wherein, gear-type overrunning clutch is arranged on the flywheel interface of wheel nave, drive shaft, through behind hub centre hole, uses wheel bearing to locate in the hub spindle bowl of the left and right sides; The drive shaft of installing wheel is passed left and right back vent mouth, assembling fork bearing location in fork mouth pedestal, finally install in outer end, both sides and drive gear disc crank and pedal.Front-wheel main shaft Direct Driving System is supporting front vehicle wheel, with the rather dead front axle of bolt, becoming the direct Manpower propulsion of bicycle wheel of rotary axle drive shaft, thus compact conformation, compact, efficiency improves greatly, can be used for any bicycle, Electrical Bicycle, has wide DEVELOPMENT PROSPECT.

Description

Front-wheel main shaft Direct Driving System

Technical field

The utility model relates to the foot drive device of bicycle, Electrical Bicycle, particularly bicycle, front wheel of electric bicycle foot drive device.

Technical background

?the foot drive device of domestic and international bicycle, Electrical Bicycle is all located between axis and rear axle, does not also have a kind of foot drive device to be located on front axle at present, although there are many f-w-d schemes, perfect mostly not.Such as Chinese patent CN200520111343 bicycle front-wheel drive device is on handlebar, install wheel disc crank, and drive with arm, this design is representative, can be used as health and fitness facilities and vehicle for disabled person.Other relates to meter, as CN201220587423 bicycle front-wheel drive device, then connect fork shaped lever on handlebar, both sides are equipped with change-speed box, but also fork has been gone up and has been set up a large amount of parts before combining, makes the numerous and jumbled cost of structure excessive, more importantly, most design is all wheel disc chain, does not also have a kind of design plan using front axle itself to do axle drive shaft.

summary of the invention

the purpose of this utility model, a kind of Manpower driver be arranged on bicycle, Electrical Bicycle front axle to be provided exactly: front-wheel main shaft Direct Driving System, this drive system has abandoned traditional gear wheel chain drive, the front axle rather extremely supporting front-wheel with bolt is become rotating drive shaft direct drive of wheel, and compact conformation, compact, transmitting ratio are large, mechanical efficiency is high.

For realizing above-mentioned technical goal, technical solution adopted in the utility model is: front-wheel main shaft Direct Driving System has gear-type overrunning clutch, gear accelerator, drives a few part of gear disc crank, drive shaft and bearing to form, wherein, gear-type overrunning clutch is arranged on the flywheel interface of wheel nave, drive shaft, through behind hub centre hole, uses wheel bearing to locate in the hub spindle bowl of the left and right sides; The drive shaft of installing wheel is passed left and right back vent mouth, assembling fork bearing location in fork mouth pedestal, finally install in outer end, both sides and drive gear disc crank and pedal.Described gear-type overrunning clutch to be arranged on the right side of front vehicle wheel on flywheel interface, or to be arranged on the left of front vehicle wheel on flywheel interface, when on flywheel interface on the right side of gear-type overrunning clutch is arranged on front-wheel, front-wheel main shaft Direct Driving System is just arranged on right fork leg side, when on flywheel interface on the left of gear-type overrunning clutch is arranged on front-wheel, front-wheel main shaft Direct Driving System is just arranged on left fork leg side.The major part of described gear-type overrunning clutch is that ratchet lock tube and few tooth fly head, and wherein ratchet lock tube is articulated on flywheel interface, and few tooth flies head and is provided with gear with little teeth number.Described ratchet lock tube is a cylindrical shape adaptor, its one end is provided with general screw socket, can be hinged with on the flywheel interface of any bicycle and Electrical Bicycle, the inside of ratchet lock tube be provided with bicycle freewheel general surmount hook tooth, the other end of ratchet lock tube is provided with axle bowl.The afterbody that described few tooth flies head has symmetrical very heavy groove and interior axle bowl, and the other end flying head at few tooth is provided with gear with little teeth number, is provided with balance shaft bowl in addition in the inside of gear with little teeth number.The left fork leg of described front fork or right fork leg are welded with in one logical, in logical be a pipe, its cylinder center has lattice keep off, and both sides are provided with the bearing groove of symmetry.In logical in penetrate acceleration axle, and use in the bearing groove of the left and right sides and accelerate bearing location, then install miniature gears in the outside of fork leg, install big gear wheel in the inner side of fork leg, miniature gears, big gear wheel, acceleration axle are combined into in-line gears accelerator; Require miniature gears and drive fluted disc good engagement, big gear wheel and gear with little teeth number good engagement.Gear accelerator and driving fluted disc, gear with little teeth number form Multi-stage transmission, cooperation through different modulus, the different number of teeth obtains high transmission ratio, embodiment one: establish and drive the modulus m=1.5 of fluted disc to get 56 teeth, gear accelerator miniature gears modulus is identical gets 20 teeth, the big gear wheel modulus m=1.5 that gear accelerator is coaxial, get 56 teeth, gear with little teeth number modulus is identical gets 20 teeth, then transmitting ratio is up to 7.8; Due to the axletree that axle drive shaft is again support flying wheel, therefore the width between centers h1 of fluted disc and miniature gears is driven, equal with the width between centers h2 of big gear wheel and gear with little teeth number, namely more big speed ratio is larger for h1=h2, h, embodiment two: establish and drive the modulus m=1.5 of fluted disc to get 64 teeth, gear accelerator miniature gears modulus is identical gets 20 teeth, the big gear wheel modulus m=1.5 that gear accelerator is coaxial, gets 64 teeth, gear with little teeth number modulus is identical gets 20 teeth, then transmitting ratio is up to 10.2.

First the utility model discloses gear-type overrunning clutch, and combination gear accelerator cleverly, present support wheel and flywheel, with the front axle that bolt is rather dead, become the drive shaft that rotary drives task, direct manpower pedal drives wheel, accessory size is small, compact, weight alleviates greatly, but because the precision of gear-bearing is high, driving efficiency obviously increases, thus more energy-conservation, particularly even flying straight drive system can reduce vehicle frame yardstick to gear, but ride and more unfold, more humane, can be used for all bicycles, Electrical Bicycle, the DEVELOPMENT PROSPECT that tool is wide, thus, positive effect of the present utility model clearly.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, utility model type is further illustrated.

Fig. 1 is front-wheel main shaft Direct Driving System integral structure schematic diagram disclosed in the utility model.

Fig. 2 A, Fig. 2 B, Fig. 2 C are gear-type overrunning clutch structural representations disclosed in the utility model.

In Fig. 1,7 is fork bearings, and 4 is cranks, and 9 is front forks, 6 is wheel bearings, and 6.1 is flywheel interfaces, and 100 is that gear even flies straight drive system, 2.2 is big gear wheels, and 2.3 is accelerate axle, 9.1 be in logical, 2 is gear accelerators, and 2.1 is miniature gearss, and 3 is drive fluted disc, 9.2 is front fork mouths, and 10 is drive shaft, and 1 is gear-type overrunning tooth flywheel, 1B3 is gear with little teeth number, and 9.21 is fork mouth pedestals, and 5 is pedals.

In Fig. 2 A, Fig. 2 B, Fig. 2 C, 1A is ratchet lock tube, and 1A1 is mounting screw socket, and 1A2 hook tooth, 1A3 is axle bowl, and 1B is that few tooth flies head, and 1B1 is very heavy groove, and 1B2 is interior axle bowl, and 1B3 is gear with little teeth number, and 1B4 is balance shaft bowl.

detailed description of the invention

As shown in Figure 1, front-wheel main shaft Direct Driving System 100 has gear-type overrunning clutch 1, gear accelerator 2, drives a few part of fluted disc 3 crank 4, drive shaft 10 and bearing to form, wherein, gear-type overrunning clutch 1 is arranged on the flywheel interface 6.1 of wheel nave, drive shaft 10, through behind hub centre hole, uses wheel bearing 6 to locate in the hub spindle bowl of the left and right sides; To install the drive shaft 10 of wheel 8 through left and right back vent mouth 9.2, in fork mouth pedestal 9.21, assembling fork bearing 7 is located, and finally installs in outer end, both sides and drives fluted disc 3 crank 4 and pedal 5.Gear-type overrunning clutch 1 to be arranged on the right side of front vehicle wheel on flywheel interface, or to be arranged on the left of front vehicle wheel on flywheel interface, when gear-type overrunning clutch 1 to be arranged on the right side of front-wheel on flywheel interface, front-wheel main shaft Direct Driving System 100 is just arranged on right fork leg side, when gear-type overrunning clutch 1 to be arranged on the left of front-wheel on flywheel interface, front-wheel main shaft Direct Driving System 100 is just arranged on left fork leg side.The major part of gear-type overrunning clutch 1 is that ratchet lock tube 1A and few tooth fly a 1B, and wherein ratchet lock tube 1A is articulated on the flywheel interface 6.1 of wheel nave, and few tooth flies a 1B and is provided with gear with little teeth number 1B3.Described ratchet lock tube 1A is a cylindrical shape adaptor, its one end is provided with general mounting screw socket 1A1, can be hinged with on the flywheel interface of any bicycle and Electrical Bicycle, the inside of ratchet lock tube 1A be provided with bicycle freewheel general surmount hook tooth 1A2, the other end of ratchet lock tube is provided with axle bowl 1A3.The afterbody that described few tooth flies a 1B has symmetrical very heavy groove 1B1 and interior axle bowl 1B2, and the other end flying a 1B at few tooth is provided with gear with little teeth number 1B3, is provided with balance shaft bowl 1B4 in addition in the inside of gear with little teeth number 1B3.The left fork leg of front fork or right fork leg are welded with in one logical, in logical be a pipe, its cylinder center has lattice keep off, and both sides are provided with the bearing groove of symmetry.In penetrate in logical 9.1 and accelerate axle 2.3, and in the bearing groove of the left and right sides, use acceleration bearing location, then install miniature gears 2.1 in the outside of fork leg, install big gear wheel 2.2 in the inner side of fork leg, miniature gears, big gear wheel, acceleration axle are combined into in-line gears accelerator; Require miniature gears 2.1 and drive fluted disc 3 good engagement, big gear wheel 2.2 and gear with little teeth number 1B3 good engagement.Gear accelerator 2 and driving fluted disc 3, gear with little teeth number 1B3 form Multi-stage transmission, cooperation through different modulus, the different number of teeth obtains high transmission ratio, embodiment one: establish and drive the modulus m=1.5 of fluted disc 3 to get 56 teeth, gear accelerator 2 miniature gears 2.1 modulus is identical gets 20 teeth, the big gear wheel 2.2 modulus m=1.5 that gear accelerator 2 is coaxial, get 56 teeth, gear with little teeth number 1B3 modulus is identical gets 20 teeth, then transmitting ratio is up to 7.8; Due to the axletree that axle drive shaft is again support flying wheel, therefore the width between centers h1 of fluted disc 3 and miniature gears 2.1 is driven, equal with the width between centers h2 of big gear wheel 2.2 and gear with little teeth number 1B3, namely more big speed ratio is larger for h1=h2, h, embodiment two: establish and drive the modulus m=1.5 of fluted disc 3 to get 64 teeth, gear accelerator 2 miniature gears 2.1 modulus is identical gets 20 teeth, the big gear wheel 2.2 modulus m=1.5 that gear accelerator 2 is coaxial, gets 64 teeth, gear with little teeth number 1B3 modulus is identical gets 20 teeth, then transmitting ratio is up to 10.2.

Claims (8)

1. a front-wheel main shaft Direct Driving System, it is characterized in that: this front-wheel main shaft Direct Driving System (100) has gear-type overrunning clutch (1), gear accelerator (2), drives a few part of fluted disc (3) crank (4), drive shaft (10) and bearing to form, wherein, gear-type overrunning clutch (1) is arranged on the flywheel interface of wheel nave, drive shaft (10), through behind hub centre hole, uses wheel bearing (7) to locate in the hub spindle bowl of the left and right sides; The drive shaft (10) of wheel (8) will be installed through left and right back vent mouth (9.2), assembling fork bearing (7) location in fork mouth pedestal (9.21), finally installs in outer end, both sides and drives fluted disc (3) crank (4) and pedal (5).

2. front-wheel main shaft Direct Driving System as claimed in claim 1, it is characterized in that: gear-type overrunning clutch (1) to be arranged on the right side of front vehicle wheel on flywheel interface, or to be arranged on the left of front vehicle wheel on flywheel interface, when gear-type overrunning clutch (1) to be arranged on the right side of front-wheel on flywheel interface, front-wheel main shaft Direct Driving System (100) is just arranged on right fork leg side, when gear-type overrunning clutch (1) to be arranged on the left of front-wheel on flywheel interface, front-wheel main shaft Direct Driving System (100) is just arranged on left fork leg side.

3. front-wheel main shaft Direct Driving System as claimed in claim 1, it is characterized in that: the major part of gear-type overrunning clutch (1) is that ratchet lock tube (1A) and few tooth fly head (1B), wherein ratchet lock tube (1A) is articulated on flywheel interface, and few tooth flies head (1B) and is provided with gear with little teeth number (1B3).

4. front-wheel main shaft Direct Driving System as claimed in claim 3, it is characterized in that: ratchet lock tube (1A) is a cylindrical shape adaptor, its one end is provided with general mounting screw socket (1A1), can be hinged with on the flywheel interface of any bicycle and Electrical Bicycle, the inside of ratchet lock tube (1A) be provided with bicycle freewheel general surmount hook tooth (1A2), the other end of ratchet lock tube (1A) is provided with axle bowl (1A3).

5. front-wheel main shaft Direct Driving System as claimed in claim 3, it is characterized in that: the afterbody that few tooth flies head (1B) has symmetrical very heavy groove (1B1) and interior axle bowl (1B2), the other end flying head (1B) at few tooth is provided with gear with little teeth number (1B3), is provided with balance shaft bowl (1B4) in addition in the inside of gear with little teeth number (1B3).

6. front-wheel main shaft Direct Driving System as claimed in claim 2, it is characterized in that: the left fork leg of front fork or right fork leg are welded with logical (9.1) in one, in logical (9.1) be a pipe, its cylinder center has lattice keep off, and both sides are provided with the bearing groove of symmetry.

7. front-wheel main shaft Direct Driving System as claimed in claim 6, it is characterized in that: in penetrate in logical (9.1) and accelerate axle (2.3), and in the bearing groove of the left and right sides, use acceleration bearing location, then in the outside of fork leg, miniature gears (2.1) is installed, install big gear wheel (2.2) in the inner side of fork leg, miniature gears, big gear wheel, acceleration axle are combined into in-line gears accelerator; Require miniature gears (2.1) and drive fluted disc (3) good engagement, big gear wheel (2.2) and gear with little teeth number (1B3) good engagement.

8. as claim 1, or the front-wheel main shaft Direct Driving System described in 7, it is characterized in that: gear accelerator (2) and driving fluted disc (3), gear with little teeth number (1B3) forms Multi-stage transmission, through different modulus, the cooperation of the different number of teeth obtains high transmission ratio, embodiment one: establish and drive the modulus m=1.5 of fluted disc (3) to get 56 teeth, gear accelerator (2) miniature gears (2.1) modulus is identical gets 20 teeth, big gear wheel (2.2) the modulus m=1.5 that gear accelerator (2) is coaxial, get 56 teeth, gear with little teeth number (1B3) modulus is identical gets 20 teeth, then transmitting ratio is up to 7.8, due to the axletree that axle drive shaft is again support flying wheel, therefore the width between centers h1 of fluted disc (3) and miniature gears (2.1) is driven, equal with the width between centers h2 of big gear wheel (2.2) and gear with little teeth number (1B3), i.e. h1=h2, h more big speed ratio is larger, embodiment two: establish and drive the modulus m=1.5 of fluted disc (3) to get 64 teeth, gear accelerator (2) miniature gears (2.1) modulus is identical gets 20 teeth, big gear wheel (2.2) the modulus m=1.5 that gear accelerator (2) is coaxial, get 64 teeth, gear with little teeth number (1B3) modulus is identical gets 20 teeth, then transmitting ratio is up to 10.2.