CN2230272Y

CN2230272Y - Speed-regulating device for vehicle drawn by man

Info

Publication number: CN2230272Y
Application number: CN 95244170
Authority: CN
Inventors: 韩月芳; 来美云
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-08
Filing date: 1995-06-08
Publication date: 1996-07-03
Anticipated expiration: 2005-06-08

Abstract

The utility model relates to a shift speed-regulating device for a jinrikisha, comprising a gear speed regulator, a fork and a chain wheel. The fork controls an input gearset and an output gearset; the input gear and the output gear can be meshed with a middle gear so that the shift speed-regulating can be realized. The utility model has the advantage of long service life and can reduce the maintenance and the labour intensity.

Description

The rickshaw speed regulation device

The utility model is a kind of governor in the rickshaw transmission device, specifically is the rickshaw speed regulating device.

Present rickshaw: also do not have speed regulation device as three-wheel vehicle, this rickshaw remains the main transportation means in large, medium and small city, because of there not being speed regulation device, when loading, the initial operation gas of requiring great effort very much, want pick up speed that prevention is also arranged when operation, therefore, this car does not adapt to the needs that people's work rhythm is accelerated.The speed regulation device that existing most of bicycle does not still have, though mountain bike has the adjusting vehicle speed device, it just uses the sprocket wheel speed governing, and this device body is only big, and service life is short, often keep in repair.

The purpose of this utility model and task are that design provides a kind of speed regulation device with gear change to be used for the gear shift speed governing of three-wheel vehicle and bicycle.

Realize that the overall technical scheme of the utility model is made up of gear governor and fork and sprocket wheel, device has one group of input gear in the gear governor; One group of intermediate gear and one group of output gear, they respectively activity be assemblied on input shaft and the output shaft, fixedly be assemblied on the tween drive shaft, input shaft, tween drive shaft and output shaft adopt the antifriction-bearing box activity to be assemblied in the governor.The central gear and the input shaft of input gear is that female splines is connected, and two input gears on both sides are fastenedly connected with central gear with the garden pin; The central gear of output gear is connected with the output shaft female splines, and two output gears in both sides are fastening even firm with central gear with the garden pin; The central gear of intermediate gear is made one with tween drive shaft, two gears in both sides and central gear is equidistant is fixed on the tween drive shaft with flat key.Two forks control input gear group that links with the central gear of input and the central number of teeth of output and output gear group respectively with the gear mesh of center tooth wheels, carry out the gear speed governing, reach the shifted of rickshaw.

Good effect of the present utility model and advantage are: increased the speed-regulating function of three-wheel vehicle, alleviated physical labor intensity, had many grades of speed, satisfied the various needs that travel.It is than the sprocket speed changing device that assembles on the existing bicycle, and volume is little, and long service life reduces maintenance, keeps the clean and tidy of car body.

Embodiment of the present utility model, according to accompanying drawing detailed make following explanation.

Fig. 1 is the utility model topology view.

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

Fig. 3 is that the utility model is assemblied in the view on the rickshaw.

Input gear

14,15 is captiveed joint with the input gear 16 of central authorities by garden pin 5, and the input gear 16 of central authorities flexibly connects with input shaft 13 female spliness, and input shaft 13 adopts antifriction-bearing box to connect with housing 7 movable assemblings.Intermediate gear 8,9 usefulness flat keys 11 are fixed on the tween drive shaft 10, and with the distance that 12 maintenances of central intermediate gear are equal to, central intermediate gear 12 is with tween drive shaft 10 captive joints or make one, and tween drive shaft 10 adopts antifriction-bearing boxs to flexibly connect housings 7.Output gear 3,6 usefulness garden pins 5 are fastenedly connected with central input gear 4, and central output gear 4 flexibly connects with output shaft 2 female spliness, and input shaft 2 adopts antifriction-bearing box to flexibly connect housing 7, and output shaft 2 connects sprocket wheel 1 in housing 7 outer ends.One of two forks 17 links input gear 16 and output gear 4 respectively, it is connected with fork axle 19 on being connected governor housing 7 by connecting rod 18, fork axle 19 is connected with the gear shift steel wire, whole gear governor gear is in the bottom bracket axle 20 of three-wheel vehicle or bicycle, and sprocket wheel 1 connection chain bar drives the rear wheel running.Adopt the external diameter and the number of teeth of each gear of input gear group, center tooth wheels and output gear wheels not to wait, can realize nine speed ratios of shifted acquisition.During concrete operations: gear shift steel wire 21 drives two forks 17 by fork axle 19 and connecting rod 18 and stirs input gear 16 and output gear 4, make input gear 14 and intermediate gear 9 engagements and

output gear

4,3 and 6 need to mesh with intermediate gear 12 and 8,9 respectively by driving, reaching the output speed ratio is 0.447,0.7 and 0.9 third speed; Two forks 17 are stirred input gear 16 and output gear 4, make input gear 15 and intermediate gear 8 mesh and make

output gear

4,3 and 6 to need to mesh with intermediate gear 12,8 and 9 respectively by driving, and reaching the output speed ratio is 1.3,1.4 and 1.55 third speeds; When fork 17 was in incipient state, input gear 16 and intermediate gear 12 engagements, another fork 17 made

output gear

4,3 and 6 need to mesh with intermediate gear 12,8 and 9 respectively by driving, and the output speed ratio is 2.42,2.6 and 4.5 third speeds.The utility model also can be realized six speed ratios, when driving, only use two

input gears

14,16 of input gear group, output gear wheels and center tooth wheels, 4,6, two intermediate gears 9,12 of two output numbers of teeth, input gear 15, output gear 3 and intermediate gear 8, need not or economize and remove, can reduce cost like this, but shift speed also meet requirements less is that market increases a gear shift speed governing vehicle.

Claims

1, a kind of rickshaw speed regulation device, it is made up of gear governor, fork (17), sprocket wheel (1), it is characterized in that the gear governor gear has one group of input gear (14), (15) and (16), one group of intermediate gear (8), (9) and (12), one group of output gear (3), (6) and (4), import central gear (16) and be connected with input shaft (13) female splines, input gear (14) and (15) are fastenedly connected with the central gear of input (16); Exporting central gear (4) is connected with output shaft (2) female splines, output gear (3) and (6) are fastenedly connected with the central gear of output (4), the same tween drive shaft of central gear (12) (10) of intermediate gear is made one, intermediate gear (8) and (9) with flat key (11) be fixed on that tween drive shaft (10) is gone up, input shaft (13), output shaft (2) and tween drive shaft (10) activity be assemblied on the shell (7) of gear governor, fork (17) links input intermediate gear (16) and exports intermediate gear (4).