CN201254262Y - Full-automatic speed changing integral vehicle wheel - Google Patents

Abstract

The utility model relates to a full automatic speed-change integrated wheel, which radically solves the problems that the concentricity between the existing gearbox and the wheel hub is difficult to ensure in the assembly process and the installation is difficult, and adopts the technical points that: a centrifugal mechanism, a rotational gear train, a speed-change mechanism and an adjusting and positioning device are assembled on a hollow axle in the wheel hub, the centrifugal mechanism comprises a centrifugal shaft sleeve assembled on the hollow axle and a fly ball forming one body with a shifting fork, the rotational gear train comprises a left ratchet wheel and a right ratchet wheel as well as a planetary gear mechanism assembled in the wheel hub, one end of a gear lever assembled in the hollow axle cavity is connected with the centrifugal shaft sleeve, and the other end thereof is connected with a movable spline in the speed-change mechanism, an edge bulge of the movable spline is meshed with a groove of a pawl disposed on the hollow axle, a positioning spigot is arranged on an outer side end cap at the joint part with the wheel hub, and a positioning table is arranged at the contact parts between the left ratchet wheel and the wheel hub and between the right ratchet wheel and the wheel hub respectively. The utility model has the advantage of reasonable structural design, and is suitable for being assembled on bicycles, electric motor cars and the like.

Description

Automatic speed-changing integral type wheel

Technical field

The utility model relates to a kind of wheel body with full automatic transmission gerbox and drive wheels and directly is assembled into single-piece automatic speed-changing integral type wheel, and it mainly is applicable to the drive wheels as the bicycle with speed changing function, battery-driven car etc.

Background technology

At present, the change-speed box that is used for drive wheels such as bicycle, battery-driven car is of a great variety, and all is assemblied in the wheel hub of wheel as an isolated system.The inventor has applied for and has obtained multinomial patent through continuous research, as notification number is CN2385966Y a kind of " automatic transmission with hydraulic torque converter ", this change-speed box is characterised in that: centrifugal mechanism links to each other with the parts that rotate train by a cover sun and planet gear, and the parts of described rotation train are arbitrary in ratchet, housing and the end cap.Planetary wheel is directly installed on the parts that rotate train by gear wheel shaft, centrifugal mechanism be installed in planetary wheel mating teeth circle on, or on the parts that rotate train, have and planetary wheel mating teeth circle, on the sun wheel that centrifugal mechanism is installed in planetary wheel is meshed.Centrifugal mechanism is to be fixed on the mounting base on the gear ring and to be hinged on the pedestal and the flyball shift fork consubstantiality.This change-speed box with the speed change centrifugal mechanism by sun and planet gear with after the parts that rotate train link to each other, make the rotating speed of centrifugal mechanism obtain changing, the actual speed of centrifugal mechanism is different from the rotating speed of bicycle quick and train miscellaneous part thereof, so the change of speed is more flexible, bicycle walking is laborsaving; Notification number is a kind of " transmission system " of CN2448616Y, this device is characterised in that: mobile device is housed in the center shaft, what be fixedly linked with mobile device is a lining, movable spline is contained in the lining, ratchet also is housed on center shaft, and Planetary gear seat and gear ring are equipped with baulk ring between Planetary gear seat and the gear ring, the baulk ring cylindrical has draw-in groove, be installed in gear ring in very heavy being meshed.Have groove on the ratchet, the edge of movable spline has projection, and both are meshed.This concavo-convex combination can make spline no matter be stuck in which groove in speed change, that is to say in which speed district all reliable and stablely, can not be shifted voluntarily; Notification number is a kind of " automatic transmission with hydraulic torque converter " of CN2345446Y, this change-speed box is characterised in that: the speed change pull bar is housed in hollow shaft, hollow shaft is with Cenbrifugal shaft sleeve outward, has a groove on the hollow shaft, is installed with the Cenbrifugal shaft sleeve that a bearing pin connects center shaft in the groove, adjustable bolt is equipped with in the hollow shaft end, elastic component is housed in the hollow shaft, and the two ends of elastic component connect adjustable bolt and speed change pull bar respectively, utilize adjustable bolt to adjust pulling force and pressure, make resetting of speed change pull bar reliable, gearshift performance is stable.The inventor once be assembled into above-mentioned three patented technologies have hollow shaft, the full automatic transmission gerbox of the transmission system of speed change pull bar, flyball centrifugal mechanism, ratchet and activity spline fitted, it is hollow axocoel internal speed-changing pull bar crank motion under the drive of flyball centrifugal mechanism, speed change pull bar drive activity spline is in each groove of ratchet, be each retaining district conversion, realize the speed change purpose.In addition, existing change-speed box outer hull divides usually with speed change centnifugal force gear case body and is arranged, and outer hull is complexity comparatively, and full automatic transmission gerbox is difficult to be guaranteed with the concentricity of wheel nave in fitting process, has caused the difficulty of installing.The axial force that rotatable parts in the casing are subjected to is bigger, and left and right bearing is fragile under the effect of this bigger axial force, after the permanent wearing and tearing, can have influence on the speed change alerting ability of inner driving parts, causes the gearshift performance of change-speed box to reduce.How to make the assembling of wheel and change-speed box under the prerequisite that guarantees gearshift performance more rationally is present problem demanding prompt solution.

The utility model content

The purpose of this utility model is for a kind of automatic speed-changing integral type wheel of reasonable in design is provided, the concentricity that fundamentally solves in the fitting process that existing change-speed box exists with wheel nave is difficult to be guaranteed, the problem of difficulty is installed, guarantees the speed change alerting ability of inner driving parts simultaneously.

The technical solution of the utility model is: this automatic speed-changing integral type wheel comprises wheel, its technical essential is: the described interior hollow shaft of wheel hub that is assembled in wheel is provided with centrifugal mechanism, rotate train, speed-changing mechanism and adjustment registration device, described centrifugal mechanism comprise the Cenbrifugal shaft sleeve that is assembled on the described hollow shaft and with the flyball of shift fork consubstantiality, described rotation train comprises a left side that is assembled in the described wheel nave, right ratchet, sun and planet gear, speed change pull bar one end that is assembled in the described hollow axocoel is connected with described Cenbrifugal shaft sleeve, the other end is connected with movable spline in the described speed-changing mechanism, the groove of the ratchet of installing on the edge projection of described movable spline and the described hollow shaft is meshed, the interface of outside end cap and described wheel nave is provided with positioning spigot, a described left side, the contact position of right ratchet and described wheel nave is provided with positioning table respectively.

Advantage of the present utility model and the good effect that is produced are: because the utility model has adopted the integral structure of wheel and change-speed box, utilize wheel nave to replace the casing of change-speed box, and outside end cap is provided with positioning spigot at the interface with wheel nave, and the contact position of left and right ratchet and wheel nave is provided with positioning table respectively.Above-mentioned wheel nave can an extrusion forming, in the time of saving in material, has removed the assembly error of change-speed box outer hull and wheel nave, has strengthened the concentricity of transmission system and wheel nave.Positioning spigot and positioning table have played axial location that limits drive disk assembly and the effect that improves concentricity, weakened the axial force that left and right bearing bears to a great extent, reduce bearing degree of wear in the course of the work, guaranteed the speed change alerting ability of the inner driving parts of wheel nave simultaneously.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is an inner structure cutaway view of the present utility model.

Sequence number explanation among the figure: 1 cover of dust, 2 jam nuts, 3 left bearings, 4 end caps, 5 positioning spigots, 6 wheel naves, 7 wheel webs, 8 wheels, 9 positioning tables, 10 sprocket wheels, 11 ratchets, 12 hollow shafts, 13 right bearings, 14 movable splines, 15 speed change pull bars, 16 right ratchets, 17 gear rings, 18 sun and planet gears, 19 left ratchets, 20 positioning tables, 21 gear rings, 22 flyballs, 23 shift forks, 24 Cenbrifugal shaft sleeves, 25 springs.

The specific embodiment

In conjunction with Fig. 1 the utility model is described in detail.This automatic speed-changing integral type wheel comprises wheel 8, wherein: be assembled with parts such as centrifugal mechanism, rotation train, speed-changing mechanism and adjustment registration device on the hollow shaft 12 in the wheel nave 6 of wheel 8, hollow shaft 12 adopts hollow shafts, and centrifugal mechanism comprises the Cenbrifugal shaft sleeve 24 that is assembled on the hollow shaft 12, be fixed on the mounting base on the gear ring 21 and be hinged on the pedestal and parts such as flyball 22 shift fork 23 consubstantialities.Rotate train and comprise parts such as the left and right ratchet 19,16 that is assembled in the wheel nave 6, sun and planet gear 18, gear ring 17, sprocket wheel 10, utilize spring 25 to be assembled with speed change pull bar 15 in hollow shaft 12 chambeies, speed change pull bar 15 1 ends are connected with Cenbrifugal shaft sleeve 24, the other end is connected with movable spline 14 in the speed-changing mechanism, and the groove of the ratchet of installing on the edge projection of movable spline 14 and the hollow shaft 12 11 is meshed.Speed change pull bar 15 moves back and forth in hollow shaft 12 under the leverage of the centnifugal force of flyball 22 and shift fork 23, thus speed change pull bar 15 drive activity splines 14 at each groove of ratchet 11, promptly each speed change retaining district's internal conversion realizes the speed change purpose.25 pairs of speed change pull bars 15 of spring play the effect of the buffering that resets.Hollow shaft 12 left and right two ends are provided with jam nut 2 and cover of dust 1 respectively.Wheel nave 6 can an extrusion forming, outside end cap 4 is provided with positioning spigot 5 at the interface with wheel nave 6, between end cap 4 and the hollow shaft 12 left bearing 3 is set, being provided with of this positioning spigot 5 guaranteed position stability and the right alignment of wheel nave 6 with end cap 4, reduced the axial force of 4 pairs of left bearings 3 of end cap.The left ratchet 19 and the right ratchet 16 that rotate in the train are provided with positioning table 20,9 respectively in the contact position with wheel nave 6.This positioning table 20,9 has guaranteed to rotate between the driving parts in the train and the axial location and the right alignment of right bearing 13, thereby has strengthened matching relationship and speed change alerting ability between the driving parts.

Claims (1)

1, a kind of automatic speed-changing integral type wheel, comprise wheel, it is characterized in that: be assembled with centrifugal mechanism on the hollow shaft in the wheel nave of described wheel, rotate train, speed-changing mechanism and adjustment registration device, described centrifugal mechanism comprise the Cenbrifugal shaft sleeve that is assembled on the described hollow shaft and with the flyball of shift fork consubstantiality, described rotation train comprises a left side that is assembled in the described wheel nave, right ratchet, sun and planet gear, speed change pull bar one end that is assembled in the described hollow axocoel is connected with described Cenbrifugal shaft sleeve, the other end is connected with movable spline in the described speed-changing mechanism, the groove of the ratchet of installing on the edge projection of described movable spline and the described hollow shaft is meshed, outside end cap is provided with positioning spigot at the interface with described wheel nave, a described left side, right ratchet is provided with positioning table respectively in the contact position with described wheel nave.

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