CN101362504B

CN101362504B - Adapter gear box in pre-control

Info

Publication number: CN101362504B
Application number: CN2008100457581A
Authority: CN
Inventors: 郭渠汉; 郭智强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-08
Filing date: 2008-08-08
Publication date: 2010-11-10
Anticipated expiration: 2028-08-08
Also published as: CN101362504A

Abstract

The invention discloses a pre-control middle connector variable speed case, which relates to a variable speed box, in particular to a gear variable speed box used for a bicycle or a tricycle. The variable speed box comprises a controller and a variable speed case, the controller comprises an operating lever, a protective cover, a vertical tube and a wire clip, and a steel wire in the vertical tube is connected with the wire clip. The variable speed case comprises a case body and a gear in the case body, a cover box is connected with the case body, the wire clip is positioned in the cover box, a shifting fork is installed in the cover box, and the other end of the shifting fork is positioned in the case box. A front axle and a rear axle are installed in the case box, a bull gear and an output gear are respectively connected with both ends of the front axle, a clutch is installed between the bull gear and the output gear, the shifting fork is connected to the clutch, and a reverse gear is installed on the rear axle through a rear roller pin bearing. The variable speed box adopts the key technology that a rotary extrusion ring is installed through a bearing; a supporting tube is connected between the vertical tube and a leather sheath, and the steel wire penetrates into the supporting tube and gets into a conduit tube. The variable speed box has the advantages of good performance, small volume and light weight, and is more suitable for the gear change of the bicycle or the tricycle to be popularized.

Description

A kind of pre-control center tap change speed gear box

(1) technical field:

The present invention relates to a kind of transmission system, in particular for the change gear transmission of bicycle, three-wheel vehicle.

(2) background technology:

Every year is originated from 2.5 hundred million of drivings in the whole world at present, and wherein China accounts for 1/3, does not also comprise tricycle.Universal bicycle shift is the developing direction of Chinese bicycle, but bicycle shift is a unresolved technical barrier at global bicycle trade, so the value of bicycle is not improved, if popularize bicycle shift, then the value of bicycle will improve 1/3.It is " bicycle center tap change speed gear box " patent of invention of 96117624.5 that the inventor has obtained the patent No. on May 22nd, 2002, the patented product has been made significant contribution for popularizing the bicycle gears speed change, influences popularizing of bicycle gears speed change but also there is following problem in the patented product:

1, owing in guard shield, the spinning ring is installed and is made the weight of change speed gear box lay particular stress on being connected supporting seat between standpipe and the leather sheath by the collar;

2, the spinning ring of two-speed controller is " V " shape, makes when variable speed operation not too smooth;

3, only be provided with the controller of band cross handle, do not satisfy the multiple needs of operating mode.

(3) summary of the invention:

The problem to be solved in the present invention provides a kind of function admirable, volume little, in light weight for overcoming above difficulty exactly, is fit to popularize the transmission system of bicycle or three-wheel vehicle gear change more.Its technical scheme is as follows:

It comprises controller and change speed gear box, and controller comprises control lever, protective cover, standpipe and ply-yarn drill, by nut the spinning ring is installed in protective cover, and control lever is connected on the spinning ring.Standpipe one end has U type groove, and being positioned at U type groove one end in the standpipe has slide block, and last item is arranged on the slide block.The other end at standpipe passes through the leather sheath connecting duct, the other end at conduit connects little spring, the other end of little spring connects ply-yarn drill, and at the end connection steel wire and the big spring that is looped around outside the steel wire of standpipe inner slide, steel wire passes conduit and little spring is connected on the ply-yarn drill.Change speed gear box comprises the gear in casing and the casing, on casing, connect the cover box, the little spring of controller and ply-yarn drill are positioned at the cover box, in the cover box, support is installed, declutch shift shaft is installed on the support, connect shift fork on the declutch shift shaft, shift fork one end fixed support block is connected on the little spring, and the shift fork other end is positioned at casing.Front axle and rear axle are installed in casing, pass through bearing installation big gear wheel and output gear respectively at the front axle two ends, be positioned at output gear one end the axle on preceding needle bearing also is installed, between big gear wheel and output gear, power-transfer clutch is installed, connect shift fork on the power-transfer clutch, the reverse gear of two teeth or three teeth is installed by the back needle bearing on rear axle.Its gordian technique is by bearing installation spinning ring in protective cover; Be connected with support tube between standpipe and leather sheath, steel wire passes support tube and enters in the conduit.

Compared with prior art the beneficial effect that has of the present invention is:

1, in guard shield, makes the weight saving of change speed gear box by bearing installation spinning ring and being connected support tube between standpipe and the leather sheath, add compact conformation, deadweight is only more than one kilogram, deduct and substitute part weight, half kilogram of net gain, be the complete acceptable weight of bicycle, be fit to popularize the bicycle gears speed change more.Three entrucking roads of product of the present invention row, stroke kilometers up to ten thousand are gone through more than ten years, and change speed gear box job failure rate is zero, and the malfunctioning rate of controller is zero, and the misoperation rate is zero, is fit to popularize bicycle and the use of three-wheel vehicle speed change fully;

2, the spinning ring of two-speed controller is " V " shape, makes when variable speed operation very well;

3, not only be provided with the controller of band cross handle, also be provided with the controller of band, satisfy the multiple needs of operating mode along handle;

If 4 popularize the bicycle gears speed change, estimate the annual income space that can open up 50,000,000,000 yuan in the whole world, create 500,000 jobs.

(4) description of drawings:

Fig. 1 is the change speed gear box surface structure scheme drawing of band cross handle three fast controllers;

Fig. 2 is that band is suitable the change speed gear box surface structure scheme drawing of three fast controllers;

Fig. 3 is a band cross handle two-speed controller architecture scheme drawing;

Fig. 4 is Fig. 3 part sectional view;

Fig. 5 is that band is suitable two-speed controller architecture scheme drawing;

Fig. 6 is Fig. 5 part sectional view;

Fig. 7 is a two-speed gearbox designs scheme drawing;

Fig. 8 is three speed transmission structural representations.

(5) specific embodiment:

Embodiment one:

Referring to Fig. 3, Fig. 4, Fig. 7, present embodiment comprises controller and change speed gear box, controller is installed on bicycle or the three-wheel vehicle handgrip, or other wants the position of installing, it comprises control lever 10, protective cover 4, standpipe 5 and ply-yarn drill 9, by nut 1 spinning ring 2 is installed in protective cover 4, control lever 10 is connected on the spinning ring 2.Standpipe 5 one ends have U type groove 33, and being positioned at U type groove one end in the standpipe has slide block 12, and last item 3 is arranged on the slide block 12, and spinning ring 2 contacts with last item 3, and last item 3 can move in U type groove 33.The other end at standpipe 5 passes through leather sheath 6 connecting ducts 7, the other end at conduit 7 connects little spring 8, the other end of little spring 8 connects ply-yarn drill 9, and at the end connection steel wire 34 and the big spring 13 that is looped around outside the steel wire of standpipe 5 inner slides, steel wire 34 passes conduit 7 and little spring 8 is connected on the ply-yarn drill 9.Change speed gear box is a cuboid of two semicircle, it comprises the gear in casing 25 and the casing, on casing 25, connect cover box 16, the little spring 8 of controller and ply-yarn drill 9 are positioned at cover box 16, in cover box 16, support 17 is installed, declutch shift shaft 18 is installed on the support, connect shift fork 19 on the declutch shift shaft, shift fork one end fixed support block 26 is connected on the little spring 8, and the shift fork other end is positioned at casing 25.Front axle 27 and rear axle 24 are installed in casing, at front axle 27 two ends respectively by bearing installation big gear wheel 20 and output gear 30, be positioned at also be equipped with on the axle of output gear one end before needle bearing 28.Power-transfer clutch 22 is installed between big gear wheel 20 and output gear 30, is connected shift fork 19 on the power-transfer clutch 22.The reverse gear 23 of two teeth is installed by back needle bearing 31 on rear axle 24.Its gordian technique is by bearing 11 spinning ring 2 to be installed in protective cover 4, is connected with support tube 14 between standpipe 5 and leather sheath 6, and steel wire 34 passes support tube 14 and enters in the conduit 7.The spinning ring 2 of controller is an inverted V-shaped, constitutes the two-speed controller, and control lever 10 is connected the side of spinning ring 2, constitutes the cross handle controller, and protective cover 4 covers on the upper end of standpipe 5.

Embodiment two:

Referring to Fig. 5, Fig. 6, Fig. 7, the controller of present embodiment is suitable the two-speed controller, and other structures are identical with embodiment one.The control lever 10 of controller is connected the top of spinning ring 2, and the lower end of spinning ring 2 is connected the lower end of standpipe 5 by pin 15, and protective cover 4 covers on the lower end of standpipe 5.

Embodiment three:

Referring to Fig. 1 and Fig. 8, the change speed gear box of present embodiment is three speed transmissions, compares with embodiment one, and the reverse gear 23 of three teeth is installed by back needle bearing 31 on rear axle 24, Duo a middle tooth 32 than the reverse gear of two-speed, constitute left, center, right three-speed three speed transmissions (referring to Fig. 8).Controller is three fast cross handle controllers, the many steps (referring to Fig. 1) of the spinning ring of the spinning chain rate two-speed controller of three fast controllers.Other structures are identical with embodiment one.

Embodiment four:

Referring to Fig. 2 and Fig. 8, the controller of present embodiment is that three speed are suitable controller, and other structures are all identical with embodiment three.

Change speed gear box replaces the bicycle center tap, is one with the vehicle frame weldering, and front axle promptly is a bicycle middle shaft, and input and output are coaxial equidirectional, and the chain drum invariant position can be adorned chain cover as usual.

During speed change, pull control lever 10 rotations, the tram controller automatically locks, and the half-twist of two-speed is a gear, and the three-speed rotation is a gear for 60 °.The suitable ordinary bicycle of two-speed uses, two-speed cry speed shelves, the slow suitable uphill road of shelves or uses of going slowly, fast grade suitable level road or fastrunning use again; Three-speed is fit to sports bicycle to be used, and is particularly suitable for mountain bike and uses.Variable speed operation and speed change principle of work are: with two speed transmissions (Fig. 7) cross handle controllers (Fig. 3) is example, if change speed gear box is at slow P PARK Position P, big spring 13 diastoles, little spring 8 compressions, shift fork 19 to the right, power-transfer clutch 22 and the engagement of output gear 30 end teeth, big gear wheel 20 fans the air, and chain drum 29 is 1: 1 with the speed ratio of crank 21.Pull control lever 10 rotations, spinning ring 2 is depressed slide block 12 by last item 3, big spring 13 compressions, steel wire 34 1 ends that slide block 12 stretches to change speed gear box prolong, little spring 8 diastoles in the change speed gear box, promote shift fork 19 left, stir power-transfer clutch 22 and the engagement of big gear wheel 20 end teeth, big gear wheel 20 drives reverse gear 23, and reverse gear 23 drives output gear 30, chain drum 29 is 1: 1.5 with the speed ratio of crank 21, is fast shelves.The many center tooth of three-speed change speed gear box (Fig. 8), the many steps of three-speed controller (Fig. 1, Fig. 2) spinning ring, variable speed operation is identical with speed change principle of work and two-speed.What this change speed gear box adopted as from the foregoing is a kind of indirect variable speed control method, when the operation speed change, compresses or loosen the spring of controller, and when the power-transfer clutch in change speed gear box did not stress, variable speed operation was finished at once.When the power-transfer clutch in change speed gear box was stressed, variable speed operation was exactly the preliminary activities of next variable speed operation process, had also just played the purpose of pre-control.

Claims

1. pre-control center tap change speed gear box, comprise controller and change speed gear box, controller comprises control lever (10), protective cover (4), standpipe (5) and ply-yarn drill (9), in protective cover (4), spinning ring (2) is installed by nut (1), control lever (10) is connected on the spinning ring (2), standpipe (5) one ends have U type groove (33), be positioned at U type groove one end in the standpipe slide block (12) is arranged, last item (3) is arranged on the slide block (12), the other end at standpipe (5) passes through leather sheath (6) connecting duct (7), the other end at conduit (7) connects little spring (8), the other end of little spring (8) connects ply-yarn drill (9), connect steel wire (34) and be looped around big spring (13) outside the steel wire at an end of standpipe (5) inner slide, steel wire (34) passes conduit (7) and little spring (8) is connected on the ply-yarn drill (9); Change speed gear box comprises the gear in casing (25) and the casing, go up connection cover box (16) at casing (25), little spring of controller (8) and ply-yarn drill (9) are positioned at cover box (16), in cover box (16), support (17) is installed, declutch shift shaft (18) is installed on the support, connect shift fork (19) on the declutch shift shaft, shift fork one end fixed support block (26) is connected on the little spring (8), the shift fork other end is positioned at casing (25), front axle (27) and rear axle (24) are installed in casing, pass through bearing installation big gear wheel (20) and output gear (30) respectively at front axle (27) two ends, be positioned at output gear one end the axle on preceding needle bearing (28) also is installed, between big gear wheel (20) and output gear (30), power-transfer clutch (22) is installed, power-transfer clutch (22) is gone up and is connected shift fork (19), go up the reverse gear (23) that two teeth or three teeth are installed by back needle bearing (31) at rear axle (24), it is characterized in that in protective cover (4), spinning ring (2) being installed by bearing (11); Be connected with support tube (14) between standpipe (5) and leather sheath (6), steel wire (34) passes support tube (14) and enters in the conduit (7).

2. according to the described pre-control center tap of claim 1 change speed gear box, the spinning ring (2) that it is characterized in that controller is an inverted V-shaped, constitutes the two-speed controller.

3. according to the described pre-control center tap of claim 1 change speed gear box, it is characterized in that the control lever (10) of controller is connected the side of spinning ring (2), constitute the cross handle controller, protective cover (4) covers on the upper end of standpipe (5).

4. according to the described pre-control center tap of claim 1 change speed gear box, it is characterized in that the control lever (10) of controller is connected the top of spinning ring (2), formation is suitable, and the lower end of spinning ring (2) is connected the lower end of standpipe (5) controller, and protective cover (4) covers on the lower end of standpipe (5).