CN2527500Y

CN2527500Y - Variable speed drum assembly with reverse gear trajectory for motorcycle

Info

Publication number: CN2527500Y
Application number: CN 02221680
Authority: CN
Inventors: 段全
Original assignee: Chongqing Shengli Industrial Group Co ltd
Current assignee: CHONGQING SHENGLI INDUSTRY (GROUP) CO., LTD.
Priority date: 2002-02-22
Filing date: 2002-02-22
Publication date: 2002-12-25
Anticipated expiration: 2012-02-22

Abstract

The utility model relates to a variable speed drum assembly with a reverse gear trajectory for a motorcycle, which belongs to a variable speed drum assembly for a motorcycle. Aiming at the existing motorcycle has no variable speed drum assembly to directly realize a reverse gear function, the variable speed drum assembly with a reverse gear trajectory for a motorcycle, which has simple structure and directly realizes the reverse gear function by the variable speed drum assembly is provided. The utility model has the technical proposal that a shifting fork II (1) which is sheathed outside a variable speed drum (3) and a guide pin (2) of a shifting fork I (5) are respectively inserted into a trajectory I groove (11) of the variable speed drum and a trajectory II groove (10) of the variable speed drum. One big end of the variable speed drum (3) is provided with a shifting pin (6) and a positioning pin (7), and a five-star shifting panel (8) which is sheathed outside a screw bolt (9) is engaged with inner threads of the one big end of the variable speed drum (3).

Description

The motor bike variable speed drum assembly that has the reverse gear trajectory

One. technical field

The utility model relates to motor bike variable speed drum assembly, especially has the motor bike variable speed drum assembly of reverse gear trajectory.

Two. background technology

Existing motor bike does not have the variable speed drum assembly and directly realizes the reverse gear function.At number of patent application is 982498713, discloses " a kind of motor tricycle reverse gear " patented technology, exists complex structure, weak points such as cost height.

Three. summary of the invention

The purpose of this utility model provides a kind of simple in structure, is directly realized the motor bike variable speed drum assembly that has the reverse gear trajectory of reverse gear function by the variable speed drum assembly.

The technical scheme that the purpose of this utility model adopted is, its rounded variable speed drum cylindrical has variable speed drum trajectory II groove and variable speed drum trajectory I groove, the variable speed drum cylindrical is with shift fork II and shift fork I, the guide finger of shift fork II and shift fork I device insert in the variable speed drum trajectory II groove respectively and variable speed drum trajectory I groove in, the other end of two guide fingers is and is inserted with jump ring in the circumferential groove and is connected with shift fork I with shift fork II, disk has porous that finger is housed outside the boss rank of the big first end of variable speed drum, have porous that locating dowel pin is housed on the boss rank and dial plate with five-pointed star with holes and be connected, bolt is with the boss rank negative thread engagement that five-pointed star is dialled plate and the big first end of variable speed drum outward.

The utility model connects the S-shaped wire casing of circumference by the cylindrical variable speed drum trajectory II groove of the variable speed drum of big first end by the sealing of circumference short lines arc groove one end, the other end, the S-shaped wire casing other end of circumference connects circumference straight line arc groove, and the sealing of the circumference straight line arc groove other end constitutes.

The utility model is arc groove one end sealing in a zigzag, other end connection circumference straight line arc groove by the cylindrical variable speed drum trajectory I groove of the variable speed drum of microcephaly's one end by circumference, the circumference straight line arc groove other end connects circumference and is down arc groove in a zigzag, and circumference is down arc groove other end sealing formation in a zigzag.

The utility model installs in the crankcase of the motor cycle engine left and right sides in advance, the prong fork of shift fork II and shift fork I is in gear grooved, the outer drag hook pulling of crankcase finger, make the variable speed drum rotation, be inserted in the variable speed drum trajectory II groove and move with trajectory with the interior guide finger of variable speed drum trajectory I groove, and drive shift fork II and shift fork I rise or descending motion with guide finger, and the major-minor shaft gear is moved, and realize having reverse gear, neutral gear, D Drive function.

The utility model compared with prior art, and is simple and compact for structure, and fabrication and installation are convenient, and cost is low, characteristics such as dependable performance.

Four. description of drawings

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is the utility model sectional structure scheme drawing;

Fig. 2 is that Figure 1A-A is to looking scheme drawing;

Fig. 3 is that variable speed drum cylindrical of the present utility model launches scheme drawing.

Among the figure: 1-shift fork II 2-guide finger 3-variable speed drum 4-jump ring 5-shift fork I 6-finger 7-locating dowel pin 8-five-pointed star is dialled the S-shaped wire casing 14-of plate 9-bolt 10-variable speed drum rail hook II groove 11-variable speed drum trajectory I groove 12-circumference short lines arc groove 13-circumference circumference straight line arc groove 15-circumference and is in a zigzag that arc groove 16-circumference straight line arc groove 17-circumference is down arc groove in a zigzag

Five. the specific embodiment

As Fig. 1 as showing, the outer guide fingers 2 that are with shift fork II1 and shift fork I5 device of variable speed drum 3 insert in the variable speed drum trajectory I groove 11 respectively and in the variable speed drum trajectory II groove 10, variable speed drum 3 is equipped with finger 6 and locating dowel pin 7 by big first end, is with five-pointed star outside the bolt 9 and dials plate 8 and variable speed drum 3 big first end negative threads engagements.

Fig. 2, shift fork I5 is connected with guide finger 2 usefulness jump rings 4.

Fig. 3, variable speed drum 3 cylindricals launch the track line of variable speed drum trajectory II groove 10 and variable speed drum trajectory I groove 11, variable speed drum trajectory II groove 10 is made of circumference short lines arc groove 12, the S-shaped wire casing 13 of circumference and circumference straight line arc groove 14, and variable speed drum trajectory I groove 11 is in a zigzag arc groove 15, circumference straight line arc groove 16 and circumference by circumference and is down in a zigzag that arc groove 17 constitutes.

Claims

1. motor bike variable speed drum assembly that has the reverse gear trajectory, it is characterized in that rounded variable speed drum (3) cylindrical has variable speed drum trajectory II groove (10) and variable speed drum trajectory I groove (11), variable speed drum (3) cylindrical is with shift fork II (1) and shift fork I (5), the guide finger (2) of shift fork II (1) and shift fork I (5) device inserts in the variable speed drum trajectory II groove (10) respectively and in the variable speed drum trajectory I groove (11), the other end of two guide fingers (2) is and is inserted with jump ring (4) in the circumferential groove and is connected with shift fork I (5) with shift fork II (1), disk has porous that finger (6) is housed outside the boss rank of the big first end of variable speed drum (3), have porous that locating dowel pin (7) is housed on the boss rank and dial plate (8) with five-pointed star with holes and be connected, bolt (9) is outer to be with the boss rank negative thread engagement that five-pointed star is dialled plate (8) and the big first end of variable speed drum (3).

2. a kind of motor bike variable speed drum assembly that has the reverse gear trajectory according to claim 1, it is characterized in that connecting the S-shaped wire casing of circumference (13) by the sealing of circumference short lines arc groove (12) one ends, the other end by the cylindrical variable speed drum trajectory II groove (10) of the variable speed drum (3) of big first end, the S-shaped wire casing of circumference (13) other end connects circumference straight line arc groove (14), and the sealing of circumference straight line arc groove (14) other end constitutes.

3. a kind of motor bike variable speed drum assembly that has the reverse gear trajectory according to claim 1, it is characterized in that by the cylindrical variable speed drum trajectory I (11) of the variable speed drum (3) of microcephaly's one end by circumference be arc groove (15) one ends sealing in a zigzag, the other end connects circumference straight line arc groove (16), circumference straight line arc groove (16) other end connects circumference and is down arc groove (17) in a zigzag, and circumference is down arc groove (17) other end sealing formation in a zigzag.