CN2934760Y - Oil-saving stepless variable-speed unit - Google Patents

Abstract

The utility model relates to a stepless gearbox, characterized in that a spring-loaded column is arranged on the end face along the outer circumference of the active gearshift sliding disc; a spring setting angle is correspondingly arranged on the eccentric-ball cover, one end of the auxiliary speed-shifting spring houses the spring setting angle and the other end houses the spring lever arm, the spring lever arm is installed on the spring-loaded column, and the spring sleeve houses the auxiliary speed-shifting spring; a longitudinal slot and a transverse slot are provided on the spring-loaded column; a bulge and a slot are arranged on the spring lever arm, and the other end envelopes the bulge on the spring lever arm; the slot on the spring lever arm holds the pin of the lever arm; the lever arm of the supporting spring is set in the vertical slot of the spring-loaded column, and the pin of the lever arm is transversally wedged into the transversal slot on the spring-loaded column. The auxiliary speed-shifting spring ensures strong explosive strength, low fuel consumption, low noise and less exhaust gas of stepless motorcycle and long service life of the engine.

Description

Oil saving stepless speed variator

Technical field:

The utility model relates to stepless speed variator, specifically mainly is the stepless speed variator that is used for motorcycle.

Background technique:

Existing stepless speed-change motorcycle, component wear is fast, and noise is big, and exhaust emissions is big, and its reason is: the clutch that motorcycle adopts is a centrifugal clutch, when motorcycle slows down, is difficult to cut off the inertial force of the speed of a motor vehicle, and driving wheel forces motor together to rotate.In the unsuitable too fast highway section of the speed of a motor vehicle,, then be difficult to bring into play the economic speed of motorcycle as streets and lanes, busiest section, obstacle road surface etc.When higher speed transformed, driving wheel can not get the useful horsepower of engine power to motorcycle by low speed; When motorcycle is worked under the light load condition, gear shift mode is that the engine spindle that adopts drives initiatively speed change disc assembly rotation, the generation centrifugal force of dishing out at a high speed of the centrifugal integument in the speed change dish rail slot initiatively, centrifugal pearl forces the slider disc of active speed change dish to overcome the pressure of the passive speed change dish spring in back, flabellum dish to active speed change dish is drawn close, and increases the initiatively middle speed belt diameter of speed change dish with this, dwindles the moving speed change dish intermediate belt diameter in back, reach the purpose that improves the speed of a motor vehicle, otherwise then slow down.Thus, the motorcycle speed change mainly is to utilize the slider disc extruding speed belt of the centrifugal force pulls active speed change dish of the centrifugal pearl generation in the active speed change dish, change the rotating diameter of speed belt, thereby realize the purpose of bull wheel band steamboat or steamboat band bull wheel, with this speed change, but when quickening, because the centrifugal force that centrifugal pearl produces exists unstable and consumes big problem, cause the useful load of motor all not to be delivered on the driving wheel, cause to drive the useful horsepower can not get power, when showing as motor and under light load, working, the oil consumption height, wearing and tearing are big, and exhaust emissions is big, and noise is big.

Summary of the invention:

The purpose of this utility model provides and a kind ofly can make that the stepless speed-change motorcycle oil consumption is low, noise is little, waste gas is few, and can prolong the oil saving stepless speed variator in motivation life-span.

In order to achieve the above object, the utility model by the following technical solutions: oil saving stepless speed variator comprises the rail slot in active slip disc assembly, main shaft, starting gear, active speed change slider disc, centrifugal pearl, centrifugal pearl door and the centrifugal pearl door; Flabellum dish, speed belt, Stationary Steel Bushing, wear-resistant sleeve packing ring, wear-resistant sleeve, active speed change slider disc, centrifugal pearl door are nested with on main shaft successively, and tighten with mainshaft nut and pad, and main shaft is provided with starting gear; Centrifugal pearl is positioned at the initiatively rail slot of speed change slider disc, and speed belt is nested with on the main shaft between flabellum dish and the active slip disc assembly, evenly is provided with a plurality of spring-loaded posts on the excircle end face of edge active speed change slider disc; Be provided with a plurality of spring established angles at centrifugal pearl door and active speed change slider disc homonymy accordingly near on the side of spindle mounting hole; Auxiliary variable speed spring one end is nested with on the spring established angle, and its other end is nested with on the spring movable arm, and the spring movable arm is installed on the spring-loaded post, and spring protecting sleeve is nested with on the auxiliary variable speed spring; Have cannelure and transverse groove on the spring-loaded post; The spring movable arm is provided with projection and groove; One end of auxiliary variable speed spring is nested with on the spring established angle, its the other end is nested with on the projection of spring movable arm, groove holding on the spring movable arm is on the movable arm pin, the supported spring movable arm places in the cannelure of spring-loaded post, and the movable arm pin laterally is placed in the transverse groove on the spring-loaded post.

After adopting above technological scheme, when motor when idling or starting are travelled, the auxiliary variable speed spring is in compressive state, active speed change slider disc there is a lateral thrust, rising along with engine speed, initiatively the centrifugal force of the centrifugal pearl in the speed change slider disc rail slot and then increases, promote the spring pressure that active speed change slider disc overcomes passive speed change dish, drive the auxiliary variable speed spring and draw close to the flabellum dish, the lateral thrust of auxiliary variable speed spring is along with the opposite direction that active speed change dish moves weakens simultaneously.When the auxiliary variable speed spring is crossed the nature extended length, it little by little helps centrifugal pearl promotion active speed change slider disc to draw close to the flabellum dish again, make initiatively speed change slider disc and the middle speed belt diameter increase of flabellum dish, the speed belt reduced in the middle of the passive speed change dish in back is with this speedup.When slowing down, initiatively the centrifugal force of the interior centrifugal pearl of speed change slider disc rail slot is along with the rotating speed of motor weakens, speed belt and then increases the passive speed change dish in back makes it under the pressure of spring in the middle of, and initiatively the speed belt in the middle of the speed change dish reaches the purpose of deceleration followed by dwindling.Because the design of auxiliary variable speed spring makes stepless speed-change motorcycle explosive force strong, speed-raising is fast, and oil consumption is low, and noise is little, and waste gas is few, and has prolonged the life-span of motor.

Description of drawings:

Fig. 1 is the utility model assembling schematic representation;

Fig. 2 is the new general assembly cross-sectional schematic of this practicality;

Fig. 3 is an initiatively speed change slider disc schematic perspective view of the utility model;

Fig. 4 is the utility model spring movable arm schematic perspective view;

Fig. 5 is the centrifugal pearl door of a utility model schematic perspective view.

Embodiment:

Contrast accompanying drawing below, the utility model is further described: as shown in Figure 1, oil saving stepless speed variator comprises the rail slot 21 in active slip disc assembly 6, main shaft 7, starting gear 8, active speed change slider disc 11, centrifugal pearl 14, centrifugal pearl door 15 and the centrifugal pearl door 15; Flabellum dish 3, speed belt 4, Stationary Steel Bushing 5, wear-resistant sleeve packing ring 9, wear-resistant sleeve 10, active speed change slider disc 11, centrifugal pearl door 15 are nested with successively on main shaft 7, and tighten with mainshaft nut 1 and pad 2, and main shaft 7 is provided with starting gear 8; Centrifugal pearl 14 is positioned at the initiatively rail slot 21 of speed change slider disc 11, speed belt 4 is nested with on the main shaft 7 between flabellum dish 3 and the active slip disc assembly 6, as Fig. 2, Fig. 3, shown in Figure 4, along evenly being provided with a plurality of spring-loaded posts 12 on the excircle end face of active speed change slider disc 11; Be provided with a plurality of spring established angles 16 at centrifugal pearl door 15 and active speed change slider disc 11 homonymies accordingly near on the side of main shaft 7 mounting holes; Auxiliary variable speed spring 18 1 ends are nested with on spring established angle 16, and its other end is nested with on spring movable arm 19, and spring movable arm 19 is installed on the spring-loaded post 12, and spring protecting sleeve 17 is nested with on auxiliary variable speed spring 18.As shown in Figure 3, have cannelure 13 and transverse groove 24 on the spring-loaded post 12.As shown in Figure 4, spring movable arm 19 is provided with projection 23 and groove 22.As shown in Figure 2, one end of auxiliary variable speed spring 18 is nested with on spring established angle 16, its the other end is nested with on the projection 23 of spring movable arm 19, groove 22 holdings on the spring movable arm 19 are on movable arm pin 20, supported spring movable arm 19 places in the cannelure 13 of spring-loaded post 12, and movable arm pin 20 laterally is placed in the transverse groove 24 on the spring-loaded post 12.

Claims (4)

1, oil saving stepless speed variator comprises the rail slot (21) in active slip disc assembly (6), main shaft (7), starting gear (8), active speed change slider disc (11), centrifugal pearl (14), centrifugal pearl door (15) and the centrifugal pearl door (15); Flabellum dish (3), speed belt (4), Stationary Steel Bushing (5), wear-resistant sleeve packing ring (9), wear-resistant sleeve (10), active speed change slider disc (11), centrifugal pearl door (15) are nested with successively on main shaft (7), and tighten with mainshaft nut (1) and pad (2), main shaft (7) is provided with starting gear (8); Centrifugal pearl (14) is positioned at the initiatively rail slot (21) of speed change slider disc (11), speed belt (4) is nested with on the main shaft (7) between flabellum dish (3) and the active slip disc assembly (6), it is characterized in that evenly being provided with a plurality of spring-loaded posts (12) on the excircle end face of edge active speed change slider disc (11); Be provided with a plurality of spring established angles (16) at centrifugal pearl door (15) and active speed change slider disc (11) homonymy accordingly near on the side of main shaft (7) mounting hole; Auxiliary variable speed spring (18) one ends are nested with on spring established angle (16), and its other end is nested with on spring movable arm (19), and spring movable arm (19) is installed on the spring-loaded post (12), and spring protecting sleeve (17) is nested with on auxiliary variable speed spring (18).

2, oil saving stepless speed variator according to claim 1 is characterized in that having on the spring-loaded post (12) cannelure (13) and transverse groove (24).

3, oil saving stepless speed variator according to claim 1 is characterized in that spring movable arm (19) is provided with projection (23) and groove (22).

4, according to claim 1,2 or 3 described oil saving stepless speed variators, an end that it is characterized in that auxiliary variable speed spring (18) is nested with on spring established angle (16), its the other end is nested with on the projection of spring movable arm (19) (23), groove (22) holding on the spring movable arm (19) is on movable arm pin (20), supported spring movable arm (19) places in the cannelure (13) of spring-loaded post (12), and movable arm pin (20) laterally is placed in the transverse groove (24) on the spring-loaded post (12).

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