CN2299013Y - Labour saving reducer of manpower tricycle - Google Patents

Abstract

The utility model provides a labor saving reducer of a manpower tricycle, which is mainly composed a case body, a main shaft, a fixed shaft, a spline sleeve, a sprocket, a sliding gear, a spline wheel, a driving gear, a driven gear, a drive gear, a shifting fork, a speed regulation rod, an elasticity positioning lock and a pull wire. When the utility model is used, the case is arranged in a triangle frame of the tricycle; both ends of the main shaft are provided with pedals, and the pull wire is arranged on handle bars. The utility model can rotate at constant speed and can reduce speed through triple gear drive to save labor through regulating the speed regulation rod, which solves the problem of the labor taking of the tricycle in upslope. The utility model is suitable for manpower tricycles.

Description

Manual tricycle deceleration labour saver

The utility model relates to transmission for vehicles, particularly a kind of manual tricycle deceleration labour saver.

In prior art, manual tricycle is to rely on foot-operated, sprocket wheel, flywheel and chain to come speed change, because sprocket diameter is big, flywheel diameter is little, can speedup, but not laborsaving, when climbing, just feel very painstaking, sometimes the driver has to get off car is pushed to the slope, and this is the deficiency of available man-power three-wheel vehicle just.

The purpose of this utility model is to overcome the deficiency of prior art, and a kind of arbitrarily speed change, labour-saving manual tricycle deceleration labour saver are provided.

Task of the present utility model realizes by this way; This change-speed box includes main shaft, sprocket wheel, it is characterized in that casing in addition, spline housing, cliding gear, the spline wheel, driving gear, anchor shaft, axle sleeve, driven gear, the A gear, the B gear, shift fork, governor lever, elastic positioning pin and backguy, spline housing is installed on the main shaft with pair of bearings and a spacing axle sleeve, main shaft is installed on the casing by bearing and bearing carrier ring and the bearing that contacts with spline housing and bearing carrier ring, extending the outer spline housing of casing is connected with sprocket wheel, cliding gear is made up of left and right sides siamesed big gear wheel and miniature gears, male splines cover with the spline housing in its female splines and the casing is installed on the spline housing, spline wheel and the driving gear fixing with main shaft are housed on the main shaft between spline housing and the bearing, the diameter of this spline wheel and the shape of spline are identical with spline housing with quantity, anchor shaft is loaded in the casing of main shaft below, axle sleeve is socketed on the anchor shaft, driven gear, A gear and B gear are loaded on the axle sleeve at interval, driven gear and driving gear engagement, A gear and B gear can be respectively and the big gear wheel and the pinion of cliding gear, shift fork places in the big gear wheel and the gap between the miniature gears of cliding gear, its declutch shift shaft is connected with the governor lever that is positioned at the casing outside, elastic positioning pin is installed on the adjusting lever, is provided with three knock holees on the casing of corresponding elastic positioning pin, backguy is connected with elastic positioning pin is terminal.

During use, casing is installed on the spider of manual tricycle, loads onto foot-operatedly at the main shaft two ends, again backguy is installed on the handlebar at last and just can.Principle of work of the present utility model is such: when shift fork slides to cliding gear on the spline wheel, cliding gear not with any gear mesh, main shaft rotates just and drives the spline housing rotation by spline wheel and cliding gear, make sprocket rotation, do not slow down this moment, as existing three-wheel vehicle, main shaft and sprocket wheel rotate with speed.And when shift fork was allocated to its big gear wheel and A gear mesh with cliding gear, main shaft rotated and then drives the driven gear rotation by driving gear, and the A gear that links with driven gear just drives the cliding gear rotation, makes spline housing and sprocket rotation.Because the diameter and the driving gear of driven gear are approaching, and that the number of teeth of A gear is lacked than the big gear wheel of cliding gear is a lot, thereby plays deceleration effort.When shift fork was allocated to cliding gear with the B gear mesh, same principle also can play deceleration effort, the speed difference that is only subtracted.This shows that the utility model can play deceleration effort, thereby reach the labour-saving requirement that make elastic positioning pin break away from knock hole as long as the user pulls backguy when upslope, with the another hand governor lever being pushed wherein can once slowing down the position again.As for that deceleration gear, the user can decide in its sole discretion according to the slope size.Therefore, the utility model can overcome the deficiency of prior art, can realize the requirement of deceleration labour-saving.

Below in conjunction with accompanying drawing structure of the present utility model is further described.

Fig. 1 is the cutaway view of the utility model inner structure.

Fig. 2 is the cutaway view of Fig. 1 along the A-A line.

Fig. 3 is that the B of Fig. 2 is to view.

The utility model is made like this; As shown in drawings, spline housing 9 is installed on the main shaft 1 with pair of bearings 7 and a spacing axle sleeve 8, and main shaft 1 is installed on the casing 13 by bearing 3 and axle sleeve 2 and the bearing 1 that contacts with spline housing 9 and bearing carrier ring 10.Extending casing 13 outer spline housings 9 is connected with sprocket wheel 12.Cliding gear 6 is made up of left and right sides siamesed big gear wheel and miniature gears, male splines cover with the spline housing 9 in its female splines and the casing 13 is installed on the spline housing 9, spline wheel 5 and the driving gear 4 fixed with main shaft 1 are housed on the main shaft 1 between spline housing 9 and the bearing 3, and the diameter of this spline 5 and the shape of spline are identical with spline housing 9 with quantity.Anchor shaft 15 is loaded in the casing 13 of main shaft 1 below.Axle sleeve 18 is socketed on the anchor shaft 15.Driven gear 19, A gear 16 and B gear 14 are loaded on the axle sleeve 18 at interval, driven gear 19 and driving gear 4 engagements.A gear 16, B gear 14 can be respectively and the big gear wheel and the pinion of cliding gear 6.Shift fork 17 places in the big gear wheel and the space between the miniature gears of cliding gear 6, and its declutch shift shaft 23 is connected with the governor lever 20 that is positioned at casing 13 outsides.Elastic positioning pin 21 is installed on the adjusting lever 20, is provided with three knock holees 24 on the casing 13 of corresponding elastic positioning pin 21, backguy 22 and 21 terminal connections of elastic positioning pin.

The utility model is applicable to that manual tricycle uses.

Claims (1)

1, a kind of manual tricycle deceleration labour saver, include main shaft (1), sprocket wheel (12), it is characterized in that casing (13) in addition, spline housing (9), cliding gear (6), spline wheel (5), driving gear (4), anchor shaft (15), axle sleeve (18), driven gear (19), A gear (16), B gear (14), shift fork (17), governor lever (20), elastic positioning pin (21) and backguy (22), spline housing (9) is installed on the main shaft (1) with a pair of bearings (7) and a spacing axle sleeve (8), main shaft (1) is installed on the casing (13) by bearing (3) and bearing carrier ring (2) and the bearing (11) that contacts with spline housing (9) and bearing carrier ring (10), extending the outer spline housing (9) of casing (13) is connected with sprocket wheel (12), cliding gear (6) is made up of left and right sides siamesed big gear wheel and miniature gears, male splines cover with the spline housing (9) in its female splines and the casing (13) is installed on the spline housing (9), spline wheel (5) and the driving gear (4) fixing with main shaft (1) are housed on the main shaft (1) between spline housing (9) and the bearing (3), the diameter of this spline wheel (5) and the shape of spline are identical with spline housing (9) with quantity, anchor shaft (15) is loaded in the casing (13) of main shaft (1) below, axle sleeve (18) is socketed on the anchor shaft (18), driven gear (19), A gear (16) and B gear (14) are loaded on the axle sleeve (18) at interval, driven gear (19) and driving gear (4) engagement, A gear (16) and B gear (14) can be respectively and the big gear wheel and the pinion of cliding gear (6), shift fork (17) places in the big gear wheel and the gap between the miniature gears of cliding gear (6), its declutch shift shaft (23) is connected with the governor lever (20) that is positioned at casing (13) outside, elastic positioning pin (21) is installed on the adjusting lever (20), is provided with three knock holees (24) on the casing (13) of corresponding elastic positioning pin (21), backguy (22) is connected with elastic positioning pin (21) is terminal.

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