CN104097452A

CN104097452A - Bicycle wheel hub

Info

Publication number: CN104097452A
Application number: CN201310150482.4A
Authority: CN
Inventors: 蔡贵席
Original assignee: Individual
Current assignee: Cai Xiuqiu
Priority date: 2013-04-11
Filing date: 2013-04-11
Publication date: 2014-10-15
Anticipated expiration: 2033-04-11
Also published as: CN104097452B

Abstract

The invention belongs to the technical field of a bicycle wheel hub. The bicycle wheel hub comprises a hub pipe which is provided with an end cover; a sliding groove is formed in the end cover; a gear box is arranged in the hub pipe; a wheel axle passes through the sliding groove; the hub pipe is connected with a telescopic rod; the wheel axle is parallel to a drive shaft; a gear A, a sliding piece and a gear B sleeve the wheel axle; the drive shaft is provided with a driven gear A, a driven gear B and a worm gear; a worm wheel is driven to rotate by the worm gear; when the worm wheel rotates, the telescopic rod is driven to extend and contract; the gear A is in transmission connection with the driven gear A; the gear B is in meshing transmission with the driven gear B; the sliding piece is connected with an adjusting lever. The bicycle wheel hub is reasonable and reliable in whole structure and control aspect, and durable.

Description

Cycle hub

Technical field

The invention belongs to cycle hub technical field.

Background technology

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

Summary of the invention

The object of the present invention is to provide a kind of reliability and durability cycle hub rational in infrastructure and easily operate conversioning wheel eccentric shaft and wheel shaft rehabilitation center state in order to solve above-mentioned deficiency.

For realizing object of the present invention, a kind of technical scheme of the present invention is: a kind of cycle hub, comprise hub pipe, and hub pipe is provided with end cap, and end cap is provided with chute, in described hub pipe, is provided with gear case, and wheel shaft is through chute, and hub pipe is connected with expansion link; It is characterized in that: described wheel shaft is parallel with axle drive shaft, 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 worm tooth, and worm tooth drives worm gear to rotate, and worm gear drives expansion link stretch and contract while rotation; 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 cycle hub, is characterized in that: chain drive driven tooth A for described gear A, described gear B and driven tooth B engaged transmission.

Described 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 cycle hub, is characterized in that: described wheel shaft is provided with impeller and the shift fork that can make gear A, gear B separate with sliding part, and impeller connects with sliding part.

The present invention is easy to operate simple in the time that mode is ridden in conversion, in control structure, rationally after wheel eccentric shaft or rehabilitation center, can automatically disconnect transmission device quits work flexible parts, the position that wheel shaft is rested on originally set, worm and wormwheel right-angle drive is steadily reliable, establishes bevelled fork controls wheel eccentric shaft and wheel shaft rehabilitation center position and accurately puts in place.

Brief description of the drawings

Fig. 1 is the solid assembling decomposition chart of a kind of embodiment of cycle hub of the present invention;

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

Fig. 3 is the block diagram after wheel shaft, gear, chain, worm screw, the worm gear of cycle hub of the present invention assembles;

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

Fig. 5 is the constructional drawing of sliding part of the present invention, gear;

Fig. 6 is the three-dimensional view of cycle hub assembling hind axle of the present invention in center;

Fig. 7 is the three-dimensional view of cycle hub assembling hind axle of the present invention at eccentric position;

Fig. 8 is the cross section view of cycle hub assembling hind axle of the present invention in center;

Fig. 9 is the cross section view of cycle hub assembling hind axle of the present invention at eccentric position;

Figure 10 is the gear box structure figure of cycle hub of the present invention;

Figure 11 is cycle hub gear case another side constructional drawing of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the specific embodiment of cycle hub of the present invention is described in further detail.

As shown in FIG., the hub pipe 1 of cycle hub of the present invention, 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, worm tooth 15, axle drive shaft 16, gear A 17, sliding part 18, spring 19, worm gear 20, worm-wheel shaft 21, expansion link 22, gear B 23, impeller 24, latch 25, retracing spring 26, flywheel 27, driven tooth B28, worm gear 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.

The two ends of wheel shaft extend out to hub pipe end-cap outside, and the two ends of wheel shaft are fixed on after the vehicle frame of bicycle, and whole hub unit is enclosed within on wheel shaft, when the rotation of hub pipe, drive whole hub unit to rotate around wheel shaft, have sliding part only and do not turn.

Embodiment 1

As shown in Figures 1 to 9, described cycle hub, bearing 3 is arranged on the bearing seat 11 of gear case 4, bearing 3 internal diameters are enclosed within on wheel shaft 12, gear A, gear B are enclosed within on wheel shaft 12 and can on wheel shaft 12, rotate, and sliding part 18 is enclosed within and on wheel shaft 12, can on wheel shaft 12, slides axially and can not on wheel shaft 12, rotate.

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

Controlling wheel shaft 12 is achieved like this in hub pipe 1 position bias or rehabilitation center, in the time of vehicle wheel rotation, knob tension drag-line 41 Rocker arm 4s 2 push away adjust bar 39 and sliding part 18 inside, dog 34 on sliding part 18 engages mutually with the dog 34 on gear 17A, the now rotation of wheel hub drives also and then rotation of axle drive shaft 16, being located at worm tooth 15 on axle drive shaft 16 engages worm gear 20 and rotates backward, when worm gear 20 rotates, expansion link 22 is stretched outward under the effect of screw thread from worm-wheel shaft 21, when stretching out, expansion link 22 also drive hub pipe 1 and the wheelbase of wheel shaft 12 to pull open, in the case of the cooperation lower hub of guide slot 43 and end cap 5 is partially not askew, realize wheel shaft 12 and hub pipe 1 bias, when wheel shaft 12 and hub pipe 1 eccentric certain position, 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 pushes up sliding part 18 and gear A 17 to separating along groove 31, thereby realize sliding part 18 and automatically separate to control quitting work of telescopic component with gear B 23, now 17 of gear A dally around wheel shaft 12, axle drive shaft 16 and worm gear 20 all quit work, realize wheel shaft 12 in the eccentric position of the former setting of hub pipe 1, make the state of bicycle running in rising and falling and jolting 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, worm tooth 15 engages worm gear 20 forward rotation, when worm gear 20 rotates, expansion link 22 shrinks back in worm-wheel shaft 21 under the effect of screw thread, when shrinking back, expansion link 22 also drive hub pipe 1 and the wheelbase of wheel shaft 12 to further, in the time that hub pipe 1 approaches concentric position with wheel shaft 12, 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 pushes up sliding part 18 and gear B 23 to separating along groove 31, thereby realizing sliding part 18 and gear B 23 automatically separates to control telescopic component and quits work, now 23 of gear B dally around wheel shaft 12, axle drive shaft 16 and worm gear 20 all quit work, realize wheel shaft 12 with hub pipe 1 in the position in concentric, make bicycle in the parallel state smoothly travelling.

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

Chain sprocket of the present invention also can replace with 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. a cycle hub, comprise hub pipe (1), hub pipe (1) is provided with end cap (5), end cap (5) is provided with chute (6), in described hub pipe (1), be provided with gear case (4), wheel shaft (12) is through 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 worm tooth (15), worm tooth (15) drives worm gear (20) to rotate, and worm gear (20) drives expansion link (22) to stretch out and shrink while rotation;

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) connects with adjust bar (39).

2. cycle hub according to claim 1, it is characterized in that: described gear A (17) chain (13) drives driven tooth A (14) described gear B (23) and driven tooth B (28) engaged transmission.

3. 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. 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 can make gear A (17), gear B (23) separate with sliding part (18), and impeller (24) connects with sliding part (18).