CN201068962Y

CN201068962Y - Stageless transmission speed change mechanism

Info

Publication number: CN201068962Y
Application number: CNU2007201474208U
Authority: CN
Inventors: 钟志豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-10
Filing date: 2007-05-10
Publication date: 2008-06-04
Anticipated expiration: 2017-05-10

Abstract

The utility model provides a stageless transmission gear change mechanism. The gear change mechanism comprises a power mechanism, a transmission mechanism and a speed switching mechanism, wherein, the power mechanism drives a fore transmission shaft by prime power, a group of open and close plates are jointed with the fore transmission shaft; the transmission mechanism is arranged on the open and close plates through a belt, the other end of the belt is jointed with a relay gear shift rod which is coaxial with a transmission body and drives a back transmission shaft by means of the transmission body; the speed switching mechanism is characterized in that the back transmission shaft is connected with a pli plate and a driven body, a pli bead is arranged in the pli plate, a pressure plate is pressed on the pli plate, a connecting rod is arranged on the pressure plate, and the other end of the connecting rod is connected with a moving plate of the open and close plates. The structure of the utility model provides a force saving speed change way, and the utility model has the advantages of the combination of time conservation and convenience.

Description

Stepless transmission shifting mechanism

Technical field

The utility model relates to a kind of gear, is meant a kind of structure of stepless transmission gear shift especially.

Background technique

The gear of establishing for the transmission of power of driving mechanism is divided into to fade to high gear (reduction torque) and quickens, or fades to low gear (lifting torque) and lower power, increase torsion.

This case model utility designer studies with great concentration because of the disappearance of above-mentioned background technology, creates a kind of the utility model stepless speed changing mechanism that can be improved really finally.

Summary of the invention

Main purpose of the present utility model is to be to provide a kind of stepless transmission shifting mechanism, rely on described stepless speed changing mechanism, will allow kinetic force according to motive force speed, and speed change automatically, and be stepless change, to have easy, the convenient and sliding suitable effect of transforming gear of gear shift.

In order to reach aforesaid purpose, the utility model is that design has a kind of stepless transmission shifting mechanism, and its formation comprises:

A kind of stepless transmission shifting mechanism, comprise a power mechanism, a driving mechanism and a throw-over mechanism, it is characterized in that: described power mechanism is to come the transmission front propeller shaft by motive force, engages one group of opening and closing disc on the front propeller shaft, and described opening and closing disc comprises fixed tray and movable disk; Described driving mechanism includes belt and is placed on described opening and closing disc place, the belt the other end engages with the relaying speed change lever, relaying speed change lever and transmission body are concentric, and rely on transmission body to drive rear propeller shaft, and on rear propeller shaft socket one elastomer, described elastomer one termination is located on the relaying speed change lever, and an end then is fixed on the fixed body; Described throw-over mechanism be rear propeller shaft in succession Puli's dish with driven body, and Puli has the Puli pearl in coiling, and a platen is depressed on Puli's dish, and platen is that a connecting rod is in succession arranged, described connecting rod the other end place engages with the movable disk of opening and closing disc.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be: so to form and reach infinite variable speed mechanism, make the described stepless speed changing mechanism can automatic speed changing and can laborsaving, timesaving comprehensive benefit.

Description of drawings

Fig. 1 is the schematic representation of the stepless transmission shifting mechanism of the utility model;

Fig. 2 is another schematic representation of the stepless transmission shifting mechanism of the utility model;

Fig. 3 is the stepless transmission shifting mechanism relaying of a utility model speed change lever schematic representation;

Fig. 4 is another speed change lever schematic representation that continues in the stepless transmission shifting mechanism of the utility model.

Description of reference numerals: 1-power mechanism; 10-motive force; The 11-front propeller shaft; The 12-opening and closing disc; The 121-movable disk; The 122-fixed tray; 2-structure driver; The 21-belt; 22-relaying speed change lever; The 23-transmission body; The 24-fixing rod; 3-throw-over mechanism; 31-rear propeller shaft 32-Puli dish; 33-Puli pearl; The 34-platen; The 4-connecting rod; The 41-eyelid retractor; The 5-elastomer; The 6-fixed body; 7-is driven body.

Embodiment

Please cooperate and consult Fig. 1～shown in Figure 4, the stepless transmission shifting mechanism of the utility model design, its structure comprises by a power mechanism 1, a driving mechanism 2, a throw-over mechanism 3 and being formed; Wherein:

Described power mechanism 1 is to come transmission front propeller shaft 11 by motive force 1, engages one group of opening and closing disc 12 on the front propeller shaft 11 and comes transmission opening and closing disc 12, and described opening and closing disc 12 comprises fixed tray 122 and movable disk 121, and movable disk 121 engages with connecting rod 4;

One driving mechanism 2 is to include belt 21 to be placed on described opening and closing disc 12 places, its described opening and closing disc 12 can drive belt 21 when rotating, and belt 21 the other ends engage with relaying speed change lever 22, relaying speed change lever 22 rely on transmission body 23 be concentric, and rely on transmission body 23 to drive rear propeller shaft 31, make belt 21 when stretching drive relaying speed change lever 22, make described relaying speed change lever 22 in the certain limit displacement, and socket one elastomer 5 on rear propeller shaft 31, described elastomer 5 one terminations are located at relaying speed change lever 22, one end then is fixed in fixed body 6, and elastomer 5 has the effect of drawing relaying speed change lever 22 of stretching, and then force traction relaying speed change lever 22, and then can make transmission body 23 and belt 21 combine closely and drive.

One throw-over mechanism 3 be rear propeller shaft 31 in succession Puli coil 32 with driven body, and Puli is coiled Puli pearl 33 is arranged in 32, and a platen 34 is depressed on Puli pearl 33, make Puli pearl 33 when upwards rotating, and then push platen 34, and platen 34 is connecting rods 4 in succession, and described connecting rod 4 the other end places engage with the movable disk 121 of opening and closing disc 12.

It relies on front propeller shaft 11, opening and closing disc 12, belt 21, transmission body 23 after motive force 10 beginning transmissions, and then drives rear propeller shaft 31 and driven body 7; When rear propeller shaft 31 coils 32 together with driving Puli when rotating, and Puli coils 32 in rotation simultaneously, its described inner Puli pearl 33 can be because of the relation of centrifugal force, make Puli pearl 33 to outer rolling, and can push platen 34 at the same time, platen 34 is connecting rods 4 in succession again, described connecting rod 4 has an eyelid retractor 41, is a central point with connecting rod 4, forms a Libra, therefore when platen 34 when pushing connecting rod 4, make connecting rod 4 in addition ends can oppress movable disk 121 in the opening and closing disc 12, so movable disk 121 can be toward fixed tray 122 extruding, the dish that makes opening and closing disc 12 is apart from constriction, and then make belt 21 by the big footpath of path change becoming gradually, and when belt 21 became big footpath gradually by path, meeting drawing relaying speed change lever 22 also accelerated relaying speed change lever 22 coaxial drive body 23 rotating speeds, the running that goes round and begins again, and reach the purpose of acceleration;

When motive force 10 reductions, the Puli pearl 33 that its Puli is coiled in 32 diminishes because of centrifugal force, so can inwardly roll, and platen 34 and connecting rod 4 move in also, and 4 of connecting rods can be put the movable disk that opens opening and closing disc, so movable disk 121 also outwards moves, the dish of opening and closing disc 12 is apart from being broadness gradually, belt 21 moves to axle center place naturally, makes belt 21 become path by big footpath, and coaxial drive body 23 rotating speeds of relaying speed change lever 22 are slack-off gradually and reach the purpose of deceleration.

It is to be socketed in rear propeller shaft 31 that one elastomer 5 is arranged again, its described elastomer 5 one ends are fixed in relaying speed change lever 22, the other end then is fixed in fixed body 6, and described elastomer 5 has the effect of drawing relaying speed change lever 22 of stretching, force traction relaying speed change lever 22, and can make relaying speed change lever 22 coaxial drive bodies 23 combine closely with belt 21 and drive.

The dish of opening and closing disc 12 will make belt 21 be moved outward and be formed greatly directly by the axle center apart from being constriction more after its constriction, 22 of relaying speed change levers can move and reduce the distance to opening and closing disc, and belt 21 is by path gradually during big footpath, the effect that speed is accelerated gradually; Anti-, the dish of opening and closing disc 12 is apart from more being broad, will make after its broadness to move in the belt 21 and form path, and relaying speed change lever 22 can elongate the distance with opening and closing disc 12, and when gradually becoming path by big footpath, the effect that speed is slowed down gradually.

More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1. a stepless transmission shifting mechanism comprises a power mechanism, a driving mechanism and a throw-over mechanism, it is characterized in that:

Described power mechanism is to come the transmission front propeller shaft by motive force, engages one group of opening and closing disc on the front propeller shaft, and described opening and closing disc comprises fixed tray and movable disk;

Described driving mechanism includes belt and is placed on described opening and closing disc place, the belt the other end engages with the relaying speed change lever, relaying speed change lever and transmission body are concentric, and rely on transmission body to drive rear propeller shaft, and on rear propeller shaft socket one elastomer, described elastomer one termination is located on the relaying speed change lever, and an end then is fixed on the fixed body;

Described throw-over mechanism be rear propeller shaft in succession Puli's dish with driven body, and Puli has the Puli pearl in coiling, and a platen is depressed on Puli's dish, and platen is that a connecting rod is in succession arranged, described connecting rod the other end place engages with the movable disk of opening and closing disc.

2. according to the described stepless transmission shifting mechanism of claim 1, described connecting rod has an eyelid retractor, is a central point with connecting rod, forms a Libra.