CN2487593Y

CN2487593Y - Gear shifting device capable of shifting forward or backword

Info

Publication number: CN2487593Y
Application number: CN 01226944
Authority: CN
Inventors: 苏泓瑜
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2001-06-07
Filing date: 2001-06-07
Publication date: 2002-04-24
Anticipated expiration: 2011-06-07

Abstract

A gear shifting device capable of shifting forward or backward comprises a gear shifting rod, a gear shifting hub, a shifting fork leader, a reverse couple axle and a principal axis, wherein the gear shifting hub is smoothly covered with a gear shifting wheel. Two sides of the gear shifting wheel are positioned by a compression spring. A shifting fork is arranged on the shifting fork leader, wherein one end of the shifting fork is inserted into a sliding rail of a shift groove of the gear shifting wheel, while the other end is inserted into a sliding lump of the principal axis. Two sides of the sliding lump are separately provided with a forward gear and a backward gear. The utility model can realize accurate and smooth gear shifting.

Description

The gearshift that can advance and fall back

The utility model is the gearshift that advances and fall back about a kind of.

Increase along with people's income, promoted the raising of the level of consumption, people have the ability to improve the quality of life to be engaged in various outdoor activities, among various stress-relieving activities, open beach buggy and galloping happy on the sandy beach, attracting vast fan always, and it need utilize a gearshift, to reach the function of advancing or retreating, known gearshift, as shown in Figure 1, basically be by gear-shift lever 1, hub range shift axle 2, shift fork guide rod 3 and main shaft 4 constitute, wherein, hub range shift axle 2 is provided with integrated hub range shift 21, the sheathed gear 22 of one side of hub range shift 21, and utilize a torsion spring 23 contact gears 22 to make it the location, and gear-shift lever 1 is meshed with the gear 22 of hub range shift axle 2 with a gear 11, a sheathed shift fork 31 on the shift fork guide rod 3, the gear groove slide rail place that is embedded on the hub range shift 21 is inserted in one termination of this shift fork 31, the termination then is embedded in the slide block 41 of main shaft 4 in addition, during operation, be to pull gear-shift lever 1, rotate and drive hub range shift 21, with order about shift fork 31 1 terminations in the gear groove slide rail of hub range shift 21 move to desired the gear groove of conversion, the termination then drives slide block 41 at main shaft 4 superior displacements in addition, come and forward gear 42 or backward gear 43 inlay card mutually, use the function that reaches gear shift, this structure need to be applied on the motor bikes such as the beach buggy of gear shift or car for disabled persons by the locomotive dealer for a long time always, though it can reach the gear shift purpose, but, the rider carries out gear shift when action because pulling gear-shift lever 1, because slide block 41 is driven displacement and close (falling back) gear 42 that advances by shift fork 31,43 o'clock, gear 42 (falls back) because advance, 43 is to be in a slew mode that continues behind engine running, therefore close slide block 41 might not embed (falling back) gear 42 that advances just, hole clipping 421 on 43,431, but need treat hole clipping 421 sometimes, 431 rotate to when corresponding with slide block 41, just can finish the action of inlay card combination, because hub range shift 21 is one-body molded with hub range shift axle 2, though in the position that a side utilizes torsion spring 23 to restrain shift fork 31 slide rail on hub range shift 21, gear-shift lever 1 has been pulled to the gear of advance (falling back) but have as the driver, and slide block 41 not simultaneously with advance (falling back) gear 42,43 phase inlay cards, and this shift fork 31 also fail to enter hub range shift 21 on (falling back) fixed point 211 of advancing of gear groove slide rail, 212, and make gear shift produce the phenomenon that has some setbacks, and necessity of being improved is arranged.

The purpose of this utility model is to be to provide a kind of gearshift that advances and fall back, and can reach the effect of smooth and easy and accurate gear shift.

In order to achieve the above object, the utility model provides a kind of gearshift that advances and fall back, comprise: gear-shift lever, hub range shift axle, shift fork guide rod, reverse couple axle and main shaft, this gear-shift lever is provided with a gear, this hub range shift axle is provided with a hub range shift, this hub range shift is provided with gear groove slide rail, and this hub range shift side is installed with a gear, and the gear of this gear-shift lever is meshed with the gear of this hub range shift side;

This shift fork guide rod is provided with a shift fork, this shift fork one termination is inserted and is embedded on the gear groove slide rail of this hub range shift, the slide block that is embedded on this main shaft is then inserted in the termination in addition, and this slide block dual side-edge is respectively equipped with forward gear and backward gear, and this backward gear meshes with the tooth of this reverse couple axle periphery; It is characterized in that:

This hub range shift be bearing fit be sheathed on this hub range shift axle, and this hub range shift dual side-edge is located with the compression spring contact.

The described gearshift that advances and fall back is characterized in that: this reverse couple axle in addition side is established a conversion gear, the output shaft engagement of this conversion gear and speed-changing mechanism, and forward gear also meshes with the output shaft of speed-changing mechanism.

The gearshift that advances and fall back of the present utility model is to be sheathed on the hub range shift axle by hub range shift, and sets with compression spring in the hub range shift both sides, makes the hub range shift can be in the slip about doing on the hub range shift axle.Can be driven the fixed point on the gear groove slide rail that enters hub range shift smoothly with the shift fork that makes the shift fork guide rod, be reached the function of smooth and easy and accurate gear shift.

In sum, advantage of the present utility model is: for being sheathed on the hub range shift axle and can horizontally slipping on the hub range shift axle, it is smooth and easy really to have reached accurately reaching of gear shift by hub range shift for this gearshift, and the effect that can promote use.

Be the effect that enables to be easier to understand structure of the present utility model and can reach, cooperate graphic detailed description as the back with preferred embodiment now:

Brief description of drawings:

Fig. 1 is the section-drawing of known gearshift.

Fig. 2 is the utility model gearshift partial side view.

Fig. 3 is the scheme drawing that the utility model is transformed to D Drive.

Fig. 4 is the scheme drawing that the utility model is transformed to backward gear.

See also Fig. 2 and shown in Figure 4, gear-shift lever 5 is meshed with gear 61 on the hub range shift axle 6 with gear 51, and on hub range shift axle 6 a sheathed hub range shift 62, this hub range shift 62 can be done a left side on hub range shift axle 6, right slip, and one compression spring 63 is set respectively in hub range shift 62 2 sides, 64, and on hub range shift 62, be provided with gear groove slide rail, this gear groove slide rail is provided with the fixed point of advancing, the neutral gear fixed point and three fixed points of fixed point that fall back, a sheathed shift fork 71 on the shift fork guide rod 7, these shift fork 71 1 ends are inserted on the gear groove slide rail that is embedded on the hub range shift 62, side is then inserted the slide block 81 that is embedded on the main shaft 8 in addition, this slide block 81 can be made left and right displacement freely at main shaft 8, and be respectively equipped with forward gear 82 and backward gear 83 at slide block 81 dual side-edges, and backward gear 83 and with the engagement of the tooth of reverse couple axle 84 peripheries, oppositely couple axle 84 other sides are established a conversion gear 85, conversion gear 85 and with output shaft 91 engagement of speed-changing mechanism 9, and see also shown in Figure 3, forward gear 82 also meshes with output shaft 91, and main shaft 8 again with gear 861 engagements of final axle 86, final axle 86 also is connected to wheel with chain 87.

See also shown in Figure 3, after starting engine at ordinary times, promptly the driving disk 92 drive belts 93 via speed-changing mechanism 9 order about output shaft 91 rotations, and drive forward gear 82 rotations by output shaft 91, make backward gear 83 rotations simultaneously and through the transmission of conversion gear 85 (seeing also shown in Figure 4) and reverse couple axle 84, when desiring to be converted into D Drive, please cooperate and consult Fig. 2 and shown in Figure 3, control lever 10 is converted into D Drive D by neutral gear N, then control lever 10 is pulled gear-shift lever 5, and then the gear 61 interlock hub range shifts 62 that the gear 51 of gear-shift lever 5 drives hub range shifts 62 sides are rotated, and make shift fork 71 move to the fixed point 621 of advancing of gear groove slide rail on the hub range shift 62, and hub range shift 62 and thereby be forced to right shift and force compression spring 64 to shrink to the right, the same time, the termination in addition of shift fork 71 promptly drives slide block 81 and does on main shaft 8 to the action of shifting left, and make slide block 81 in the hole clipping 821 that under left dislocation, is embedded in forward gear 82, to make forward gear 82 drive main shaft 8 rotations, rotate synchronously by the final axle 86 of main shaft 8 driven wheels, 861 orders again, come to drive wheel and be rotated in the forward, reach the purpose that makes car advance with chain 87.

See also Fig. 2 and shown in Figure 4 again, when desire is made reverse motion, control lever 10 is converted into backward gear R, make control lever 10 pull gear-shift lever 5, and then the gear 61 interlock hub range shifts 62 that the gear 51 of gear-shift lever 5 drives hub range shifts 62 sides are rotated, and make shift fork 71 move to the fixed point 622 that falls back of gear groove slide rail on the hub range shift 62, and hub range shift 62 and thereby be forced to shrink left to the compressing compression spring 63 that shifts left, the same time, the termination in addition of shift fork 71 promptly drives slide block 81 is done right shift on main shaft 8 action, and slide block 81 is embedded in the hole clipping 831 of backward gear 83 under the displacement to the right, rotate synchronously to make backward gear 83 drive main shaft 8, rotate synchronously by the final axle 86 of main shaft 8 driven wheels, 861 orders again, and can reach the purpose that allows car fall back by chain 87 drive wheels contrarotations.

And effect of the present utility model is, because of hub range shift 62 is to be sheathed on the hub range shift axle 6, utilize the compression spring 63 of dual side-edge again, 64 contact makes hub range shift 62 location, therefore hub range shift 62 can be in the slip about doing on the hub range shift axle 6, when gear shift makes car advance, when fixed point 621 moves because shift fork 71 marches forward, hub range shift 62 can be forced to transitional slide to the right, and make compression spring 64 by crowded contraction, and then make shift fork 71 can enter smoothly on the hub range shift 62 advancing the fixed point 621, the hole clipping 821 that can ejection slide block 81 embeds forward gear 82 with seasonal shift fork 71 smoothly, same, when gear shift made car fall back, because shift fork 71 is to falling back fixed point 622 when moving, hub range shift 62 can be forced to transitional slide left, and make compression spring 63 by crowded contraction, and then make shift fork 71 can enter falling back fixed point 622 on the hub range shift 62 smoothly, can embed the hole clipping 831 of backward gear 83 smoothly by ejection slide block 81 with seasonal shift fork 71, and reach accurately and the action of gear shift smoothly.

Claims

1, a kind of gearshift that advances and fall back, comprise: gear-shift lever, hub range shift axle, shift fork guide rod, reverse couple axle and main shaft, this gear-shift lever is provided with a gear, and this hub range shift axle is provided with a hub range shift, and this hub range shift is provided with gear groove slide rail, this hub range shift side is installed with a gear, and the gear of this gear-shift lever is meshed with the gear of this hub range shift side;

2, the gearshift that advances and fall back as claimed in claim 1 is characterized in that: this reverse couple axle in addition side is established a conversion gear, the output shaft engagement of this conversion gear and speed-changing mechanism, and forward gear also meshes with the output shaft of speed-changing mechanism.