CN203282960U

CN203282960U - Adjustable eccentric bicycle hub

Info

Publication number: CN203282960U
Application number: CN2013202142188U
Authority: CN
Inventors: 蔡贵席
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-11
Filing date: 2013-04-11
Publication date: 2013-11-13
Anticipated expiration: 2023-04-11

Abstract

The utility model belongs to the technical field of bicycle hubs and provides an adjustable eccentric bicycle hub which comprises a hub pipe. The hub pipe is provided with an end cover which is provided with a sliding groove, a gearbox is arranged in the hub pipe, a wheel shaft penetrates through the sliding groove, and the hub pipe is connected with a telescopic rod. The wheel shaft is parallel with a driving shaft and sleeved with a gear A, a sliding piece and a gear B, the driving shaft is provided with driven teeth A, driven teeth B and helical teeth, the helical teeth drive a helical gear to rotate, the helical gear rotates to drive the telescopic rod to stretch out and retract, the gear A is in transmission connection with the driven teeth A, the gear B is in meshed transmission with the driven teeth B, and the sliding piece is connected with an adjusting rod. The adjustable eccentric bicycle hub is reasonable and reliable in whole structure and control, and is durable.

Description

The adjustable eccentric cycle hub

Technical field

The utility model belongs to the cycle hub technical field.

Background technology

The wheel hub wheel shaft of common bicycle is arranged on fixing position, center, this kind wheel hub is installed can be used for general walking-replacing tool.Also have and can regulate wheel shaft and wheel eccentricities plays at the middle bicycle of riding the bicycle designs that bicycle undulation jolts through patent retrieval.But it is reasonable not to exist on the structural entity integraty and aspect control, causes the reliable durable of parts hang down and easily damage.

The utility model content

Be to provide a kind of reliability and durability adjustable eccentric cycle hub rational in infrastructure and easily operate the conversioning wheel eccentric shaft and wheel shaft rehabilitation center state in order to solve above-mentioned not enough the purpose of this utility model.

For realizing the purpose of this utility model, a kind of technical scheme of the present utility model is: a kind of adjustable eccentric cycle hub comprises the hub pipe, the hub pipe is provided with end cap, and end cap is provided with chute, is provided with gear case in described hub pipe, wheel shaft passes chute, and the hub pipe is connected with expansion link; It is characterized in that: described wheel shaft is parallel with axle drive shaft, and on wheel shaft, cover has gear A, sliding part and gear B, and axle drive shaft is provided with driven tooth A, driven tooth B and helical teeth, and helical teeth drives helical wheel and rotates, and drives expansion link when helical wheel rotates and stretches and contract; Described gear A and driven tooth A driving coupling, gear B and driven tooth B engaged transmission; Described sliding part connects with adjust bar.

Described adjustable eccentric cycle hub is characterized in that: described gear A chain drive driven tooth A, described gear B and driven tooth B engaged transmission.

Described adjustable eccentric cycle hub is characterized in that: the end of described gear A, sliding part and gear B is respectively equipped with dog, and sliding part is provided with spring.

Described adjustable eccentric cycle hub is characterized in that: described wheel shaft is provided with impeller and the shift fork that gear A, gear B are separated with sliding part, and impeller connects with sliding part.

The utility model is easy to operate simple when mode is ridden in conversion, rationally can flexible parts be quit work the automatic cutout transmission device after wheel eccentric shaft or rehabilitation center on control structure, the position that wheel shaft is rested on originally set, spiral helical teeth and spiral beveled wheel right-angle drive are steadily reliable, establish bevelled fork controls wheel eccentric shaft and wheel shaft rehabilitation center position and accurately put in place.

Description of drawings

Fig. 1 is the solid assembling decomposition chart of a kind of embodiment of the utility model adjustable eccentric cycle hub;

Fig. 2 is assembled exploded perspective constructional drawing on wheel shaft;

Fig. 3 is the block diagram after wheel shaft, gear, chain, axle drive shaft, the helical wheel of the utility model adjustable eccentric cycle hub assembles;

Fig. 4 is the view of other direction after the assembling of Fig. 3;

Fig. 5 is the constructional drawing of the utility model sliding part, gear;

Fig. 6 is the three-dimensional view of the utility model adjustable eccentric cycle hub assembling hind axle in center;

Fig. 7 is the three-dimensional view of the utility model adjustable eccentric cycle hub assembling hind axle at eccentric position;

Fig. 8 is the cross section view of the utility model adjustable eccentric cycle hub assembling hind axle in center;

Fig. 9 is the cross section view of the utility model adjustable eccentric cycle hub assembling hind axle at eccentric position;

Figure 10 is the gear box structure figure of the utility model adjustable eccentric cycle hub;

Figure 11 is the utility model adjustable eccentric cycle hub gear case another side constructional drawing.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the utility model adjustable eccentric cycle hub is described in further detail.

as shown in FIG., the hub pipe 1 of the utility model adjustable eccentric cycle hub, bolt 2, bearing 3, gear case 4, end cap 5, chute 6, very little cover 7, brake disc 8, screw 9, shift fork 10, bearing seat 11, wheel shaft 12, chain 13, driven tooth A14, helical teeth 15, axle drive shaft 16, gear A 17, sliding part 18, spring 19, helical wheel 20, helical gear shaft 21, expansion link 22, gear B 23, impeller 24, latch 25, retracing spring 26, flywheel 27, driven tooth B28, helical wheel axle bed 29, guide groove 30, groove 31, inclined-plane 32, back-up ring 33, dog 34, protruding key 35, screw 36, drive axle bed 37, recoil spring 38, adjust bar 39, rocker stand 40, drag-line 41, Rocker arm 42, guide slot 43.

It is outside that the two ends of wheel shaft extend out to the hub pipe end-cap, and after the two ends of wheel shaft were fixed on the vehicle frame of bicycle, whole hub unit was enclosed within on wheel shaft, drives whole hub unit during the rotation of hub pipe and rotate around wheel shaft, has sliding part only and do not turn.

Embodiment 1

As shown in Figures 1 to 9, described adjustable eccentric cycle hub, bearing 3 is arranged on the bearing seat of gear case 4, bearing 3 is enclosed within on wheel shaft 12, gear A, gear B are enclosed within on wheel shaft 12 and can rotate on wheel shaft, and sliding part 18 is enclosed within on wheel shaft 18 and can is endwisely slipping on wheel shaft and can not rotate on wheel shaft 12.

Axle drive shaft 16 is arranged in the driving axle bed 37 of gear case 4, gear A 17 and driven tooth A14 chain 13 transmissions, gear B and driven tooth B engaged transmission, axle drive shaft 16 is provided with helical teeth 15, helical teeth 15 and helical wheel 20 engaged transmission, helical wheel 20 internal diameters offer tapped bore 36,36 li expansion links 22 that are provided with thread of tapped bore, expansion link 22 is fixedly connected with hub pipe 1, and when helical wheel 20 rotates, expansion link 22 is stretching out or shrinking under the effect of screw thread in helical gear shaft 21.

controlling wheel shaft 12 is achieved like this in hub pipe 1 position bias or rehabilitation center, knob tension drag-line 41 Rocker arm 4s 2 push away adjust bar 39 and sliding part 18 inside when vehicle wheel rotation, dog 34 on sliding part 18 engages mutually with the dog 34 on gear 17A, this moment, the rotation of wheel hub drove also and then rotation of axle drive shaft 16, be located at helical teeth 15 engagement helical wheel 20 backward rotation on axle drive shaft 16, when helical wheel 20 rotates, expansion link 22 is stretched outward from helical gear shaft 21 under the effect of screw thread, also driving hub pipe 1 when expansion link 22 stretches out pulls open with the wheelbase of wheel shaft 12, in the situation that partially not askew wheel shaft 12 and hub pipe 1 bias of realizing of the cooperation lower hub of guide slot 43 and end cap 5, during the eccentric certain position of wheel shaft 12 and hub pipe 1, the internal diameter of hub pipe 1 starts top to shift fork 10, because shift fork 10 jag sections are thinner and be processed with inclined-plane 32, shift fork 10 forces top to impeller 24, the elastic force impeller 24 that impeller 24 overcomes recoil spring 38 extremely separates sliding part 18 and gear A 17 tops along groove 31, thereby realize that sliding part 18 and gear B 23 automatically separate to control telescopic component and quit work, 17 of gear A dally around wheel shaft 12 at this moment, axle drive shaft 16 and helical wheel 20 all quit work, realize that wheel shaft 12 is in the former position of setting bias of hub pipe 1, make bicycle running be in the state that rises and falls and jolt and travel.

when knob loosens drag-line 41, sliding part 18 engages with it to another gear B 23 on effect downslide moving part 18 tops of spring 19, gear B 23 and driven tooth B28 engaged transmission, helical teeth 15 engagement helical wheel 20 forward rotation, when helical wheel 20 rotates, expansion link 22 shrinks back in helical gear shaft 21 under the effect of screw thread, also driving hub pipe 1 when expansion link 22 shrinks back furthers with the wheelbase of wheel shaft 12, at hub pipe 1 and wheel shaft 12 during near concentric position, the internal diameter of hub pipe 1 starts top to another shift fork 10, because shift fork 10 jag sections are thinner and be processed with inclined-plane 32, shift fork 10 forces top to impeller 24, the elastic force impeller 24 that impeller 24 overcomes spring 19 extremely separates sliding part 18 and gear B 23 tops along groove 31, thereby realize that sliding part 18 and gear B 23 automatically separate to control telescopic component and quit work, 23 of gear B dally around wheel shaft 12 at this moment, axle drive shaft 16 and helical wheel 20 all quit work, realize that wheel shaft 12 and hub pipe 1 are being in concentric position, make bicycle be in the parallel state that smoothly travels.

Hence one can see that can make axle drive shaft rotate and reverse with the chain-driving another side with the direct geared engaged transmission on one side at same group of axle upper driving, and the worm gear forward or reverse can make wheel shaft be in bias and the concentric of wheel hub.

Chain sprocket described in the utility model also can replace with the direct geared engagement, can reach equally axle drive shaft and rotate and reverse, the technique effect that makes expansion link shrink and stretch out.

Claims

1. adjustable eccentric cycle hub, comprise hub pipe (1), hub pipe (1) is provided with end cap (5), end cap (5) is provided with chute (6), be provided with gear case (4) in described hub pipe (1), wheel shaft (12) passes chute (6), and hub pipe (1) is connected with expansion link (22);

It is characterized in that:

Described wheel shaft (12) is parallel with axle drive shaft (16), the upper cover of wheel shaft (12) has gear A (17), sliding part (18) and gear B (23), axle drive shaft (16) is provided with driven tooth A (14), driven tooth B (28) and helical teeth (15), helical teeth (15) drives helical wheel (20) and rotates, and drives expansion link (22) when helical wheel (20) rotates and stretches out and shrink;

Described gear A (17) and driven tooth A (14) driving coupling, gear B (23) and driven tooth B (28) engaged transmission;

Described sliding part (18) is connected with adjust bar (39).

2. adjustable eccentric cycle hub according to claim 1, is characterized in that: described gear A (17) chain (13) driving driven tooth A (14).

3. adjustable eccentric cycle hub according to claim 1, it is characterized in that: the end of described gear A (17), sliding part (18) and gear B (23) is respectively equipped with dog (34), and sliding part (18) is provided with spring (19).

4. adjustable eccentric cycle hub according to claim 1, it is characterized in that: described wheel shaft (12) is provided with impeller (24) and the shift fork (10) that gear A (17), gear B (23) are separated with sliding part (18), and impeller (24) is connected with sliding part (18).