CN2696974Y

CN2696974Y - Man power driven speed variable load/passenger tricycle

Info

Publication number: CN2696974Y
Application number: CN 200320115131
Authority: CN
Inventors: 程永福
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-01
Filing date: 2003-12-01
Publication date: 2005-05-04
Anticipated expiration: 2013-12-01

Abstract

The utility model relates to a man power driven speed variable load/passenger tricycle. The man power driven speed variable load/passenger tricycle is characterized in that two different kinds of speed are determined by two groups of sprockets, and a transmission is used for speed changing. Wherein, the transmission is installed on the after-frame of the tricycle body, and a gearshift device is used for gear shifting; the central axis of the transmission comprises a cylinder, a rectangle and a solid column milled with the flat around, a fixed sprocket and two rotatable links are installed on the transmission, and a gearshift disk is arranged between the sprockets; the gearshift disk is provided with a convex tooth, three convex teeth meshed with the convex tooth of the gearshift disk is arranged on a rotating disk, and that the gearshift disk is respectively meshed with different rotatable gears determines corresponding group of sprockets to be used; the gearshift disk is installed in a U-type slot arranged on the lower end of a shifting fork lever which is plumb with the U-type slot; the gearshift comprises a gearshift column frame and a gearshift rod, and the gearshift rod can move in the gearshift column frame. When changing the gearshift, the gearshift rod is pushed by the right foot of the rider, and the gearshift disk is pulled and hung on the corresponding speed threshold. The man power driven speed variable load/passenger tricycle has the advantages of labor saving of uphill, start and load bearing, agile gearshift, convenient and reliable use.

Description

The passenger-cargo three-wheel vehicle of manpower speed change

Affiliated technical field

The utility model relates to a kind of trishaw, specifically is the passenger-cargo three-wheel vehicle of a kind of manpower speed change.

Background technology

General trishaw no matter passenger train or freight all have only a cover chain gear apparatus, does not possess speed changing function, is with a kind of speed all the time.This is starting, is going up a slope or is requiring great effort very much during the big weight of carrying.

Summary of the invention

The purpose of this utility model provides and a kind ofly can adopt two kinds of transmission speeds according to driving road-condition and load capacity, conversion freely, labour-saving manpower speed change three-wheel vehicle.

The purpose of this utility model reaches like this: the passenger-cargo three-wheel vehicle of a kind of manpower speed change is characterized in that: also have change-speed box, change-speed box is installed in the rear lower position of vehicle frame by bracing frame 27.Change-speed box constitutes two groups of chain sprocket drive with drive sprocket, the chain of three-wheel vehicle.Sprocket wheel 8 is connected with the driving wheel 26 of three-wheel vehicle by chain 28.Two sprocket wheels 6,9 are connected with

flywheel

22,23 by

chain

29,30 in addition.Sprocket

wheel

8,9,6 orders are installed on the center shaft 4 of change-speed box, are provided with gear disk 7 between two sprocket wheels 9,6, and the two ends of gear disk 7 are placed on respectively in the two U type grooves of shifting fork bar 5.U type groove upward movement, gear disk thereupon upwards and 6 meshing connections of sprocket wheel, U type groove moves downward, gear disk thereupon downwards with 9 meshing connections of sprocket wheel.The two ends of change-speed box center shaft 4 are provided with

bearing seat

10,17, are fixed on the bearing block support piece 20,21.Change-speed box has a shift device to be fixed on the position of vehicle frame by tread plate.

Gear disk is a disk, and the centre has a square hole, evenly distributed 6 shapes, size, thickness is identical, spacing equates double wedge around the tow sides of disk, square hole.Sprocket wheel 9 and 6 near the one sides of gear disks have 3 identical with double wedge shape, size, thickness on the gear disk and spacing is its double wedge of 2 times.Shift fork slide cartridge frame 3 is rectangle racks, and diaxon is a hollow shaft longitudinally, difference built-in two solid shifting fork bars 5, and there is a U type groove vertical with its direction the lower end of shifting fork bar 5.Be connected with shift fork contiguous block 1 in the upper end of shifting fork bar 5, shift fork contiguous block 1 is provided with orientation lever 2.The center shaft 4 of described change-speed box is a solid axle, position at sprocket wheel 9,6 places is cylindrical, be on cylinder, to open a breach, be milled with a plane in the position at sprocket wheel 8 places, the position at gear disk 7 places be with gear disk on the rectangular shaft that matches of institute's opening square hole.Described gear device contains gear tube 19 and gear shift lever 18, and the gear tube is a right-angled triangle, is installed on the vehicle frame, gear shift lever is the L type, it is inserted in the tube limit, a right angle of gear tube frame on one side, is connected with steel wire extension spring 14 on the termination, and another side is fixed on another square edge of gear tube frame.Be fixed with two

pulleys

15,16 on the tricycle frame, be connected with mild steel 13 between two pulleys, between the cross sill of shift fork contiguous block 1 and shift fork sliding rack 3, connect steel wire extension spring 11, the upper end of steel wire extension spring 11 connects one group of two steel wire extension spring 12, and the other end of extension spring 12 is connected with flexible steel-wire rope 13 by pulley 16.

Described three-wheel vehicle is the cylindrical fireworks that adopt 24 inches wheels and 26 inches wheel institute adapteds.

The utlity model has following advantage:

1, upward slope, load-bearing, startup is laborsaving, the conversion speed of a motor vehicle is convenient and swift.

2, simple and reliable for structure, use, easy for installation, input cost is low, long service life.

3, applied widely, both can be used for passenger tricycle, can be used for the shipping three-wheel vehicle again.

Description of drawings

Fig. 1 is the structural representation after change-speed box is installed by this manpower speed change tricycle frame.

Fig. 2-Figure 10 is the variable part scheme drawing of change-speed box.Wherein, Fig. 2 is the assembly drawing of change-speed box, and Fig. 3 is shift fork slide cartridge frame figure, Fig. 4 is shifting fork bar figure, Fig. 5 is shift fork contiguous block figure, and Fig. 6 is a change-speed box center shaft front view, and Fig. 7 is the C-C section-drawing of Fig. 6, Fig. 8 is the B-B section-drawing of Fig. 6, Fig. 9 is the gear disk front view, and Figure 10 is the lateral plan of Fig. 9, and Figure 11 is the scheme drawing that deviates from the gear disk one side of sprocket wheel 6,9, Figure 12 is the lateral plan of Figure 11, and Figure 13 is the scheme drawing of sprocket wheel 6,9 near the gear disk one side.

Figure 14-Figure 16 is the shift device part-structure scheme drawing of change-speed box.Wherein, Figure 14 is the assembly drowing of gear device, and Figure 15 is gear tube frame figure, and Figure 16 is gear shift lever figure.

Among the figure, 1 shift fork contiguous block, 2 orientation levers, 3 shift fork slide cartridge framves, 4 transmission system center shafts, 5 shifting fork bars, 6 change wheels, 7 gear disks, 8 conduction wheels, 9 change wheels, 10,17 are bearing seat, 11 steel wire extension springs, 12 2 steel wire extension spring combinations, 13 stone dead wires, 14 steel wire extension springs, 15,16 are pulley, 18 gear shift levers, 19 gear tube framves, 20,21 are the bearing block support piece, 22 flywheels, 23 flywheels, 24 brake wheels, 25 trailing wheel main shafts, 26 right leg chain drums, 27 transmission system bearing supports, the 28,29, the 30th, chain.

The specific embodiment

Accompanying drawing has provided an embodiment of the present utility model.

Referring to accompanying drawing.

The change-speed box of three-wheel vehicle is installed in the rear lower position of vehicle body by bracing frame 27, the original driving wheel of change-speed box and three-wheel vehicle, and sprocket wheel 7 and chain have constituted new driving device together.Sprocket wheel 8 is connected with the original driving wheel 26 of three-wheel vehicle by chain 28, and sprocket wheel 26 is 22 teeth, and sprocket wheel 8 is 14 teeth.Two speed-changing chains 6,9 are connected with

flywheel

22,23 by

chain

29,30 respectively, and sprocket wheel 9 uses 22 toothed chain wheels, and sprocket wheel 6 uses 18 toothed chain wheels, forms two groups of chain sprocket drive.Sprocket

wheel

8,9,6 orders are installed on the center shaft 4 of change-speed box, are provided with gear disk 7 between two speed-changing chains 9,6.One rectangle shift fork slide cartridge frame 3 is arranged above the change-speed box center shaft, and diaxon is a hollow shaft longitudinally, difference built-in two solid shifting fork bars 5, and there is a U type groove vertical with its direction the lower end of shifting fork bar 5.The two ends of gear disk 7 are placed on respectively in the two U type grooves of shifting fork bar.Because gear disk is a disk, the centre has a square hole, evenly distributed 6 shapes, size, thickness is identical, spacing equates double wedge around the tow sides of disk, square hole, become sprocket wheel 9 and 6 one sides near gear disks also have 3 with gear disk on mutually meshing shape, the size of double wedge, thickness is identical and spacing is its double wedge of 2 times, so when U type groove upward movement, gear disk makes progress and 6 meshing connections of sprocket wheel thereupon, U type groove moves downward, gear disk thereupon downwards with 9 meshing connections of sprocket wheel, gear disk has played the effect of power-transfer clutch.Like this, two transmission paths have been formed two groups of sprocket wheels.Consisting of of two groups of sprocket wheels, first group of (22 teeth/14 teeth) * (22 teeth/18 teeth) is called first speed, and second group of (22 teeth/14 teeth) * (18 teeth/22 teeth) is called second speed.First speed is normal speed, and second speed is a speed change.Which group sprocket wheel two groups of speed-changing chains determine to use by the conversion of gear device by gear disk.The driving wheel of three-wheel vehicle, change-speed box are finished power transmission jointly.

The two ends of change-speed box center shaft 4 are provided with

bearing seat

10,17, are fixed on the bearing block support piece 20,21.Change-speed box center shaft 4 is solid axles, is cylindrical in the position at sprocket wheel 9,6 places, and sprocket wheel 9,6 can rotate on axle.Position at sprocket wheel 8 places has a plane, and sprocket wheel 8 is fixed on the center shaft 4 by screw rod, can not rotate on axle.In the position at gear disk place is rectangle, matches with institute's opening square hole on the gear disk, guaranteed gear disk can only be on axle crank motion, and the reciprocating distance of the length of rectangle decision gear disk.When travelling, sprocket wheel 9,6 drives the three-wheel vehicle trailing wheel by

flywheel

22,23 and rotates.

On the cross sill of shift fork slide cartridge frame 3, also be provided with steel wire extension spring 11, two steel wire extension springs 12 of the other end of steel wire extension spring 11 and another group are connected, the other end of steel wire extension spring 12 is connected on the pulley 16, be provided with stone dead wire 13 between the

pulley

16,15, shift device be connected with pulley 15 and the place ahead of being fixed on vehicle frame by the position of tread plate, between speed change and the gear by pulley, steel wire and extension spring transmission.Be connected with shift fork contiguous block 1 in the upper end of shifting fork bar 5, fixed orientation bar 2 on the shift fork contiguous block 1.Shift device contains gear tube 19 and gear shift lever 18.The gear tube is a right-angled triangle, is installed on the vehicle frame, and gear shift lever is the L type, on one side it is inserted in the tube limit, a right angle of gear tube frame, is connected with steel wire extension spring 14 on the termination, and another side is fixed on another square edge of gear tube frame.Be fixed with two

pulleys

15,16 on the tricycle frame, be connected with mild steel 13 between two pulleys, connect extension spring 11 between the cross sill of shift fork contiguous block 1 and shift fork sliding rack 3, the upper end of extension spring connects two extension springs 12 of another group, and the other end of extension spring 12 is connected with flexible steel-wire rope 13 by pulley 16.

In this example, three-wheel vehicle is the cylindrical fireworks that adopt 24 inches wheels and 26 inches wheel institute adapteds.32 steel wires of front-wheel, 40 steel wires of trailing wheel.Three cylindrical fireworks use the front and back wheel cylindrical fireworks of former 26 inches wheels, and steel wire uses the steel wire of 24 inches wheels.Because vehicle body has reduced, so the seat-box of passenger tricycle can be placed on the wheel, under the back wheels of vehicle main shaft situation identical with former manpower passenger tricycle shaft length, seat-box can be widened in 1 meter, takes advantage of seat more loose, comfortable.And to the shipping three-wheel vehicle, when carrying more goods, start and go up a slope comparatively laborsaving.

Use first speed during normal the enforcement, extension spring 11 is tension, and gear disk is stabilized in first speed.If run into when object is heavier on the steep or car of grade ratio, can use second speed instead.During the operation speed change, earlier the speed of a motor vehicle is slowed down, right crus of diaphragm is turned right and is pedaled gear shift lever 18 then, and gear shift lever one rotates slightly, pulling steel wire extension spring 14, under the combined action of

pulley

15,16 and stone dead wire 13, the steel

wire extension spring

12,14 of helping loose state at ordinary times is pulled upwardly, and gear disk 7 is travelled forward, and draws to hang up sprocket wheel 6, use second group of sprocket wheel, become the second speed state of kinematic motion.In the process of steel wire pulling, orientation lever 2 has played balance and directed effect.Otherwise, when needing normal the enforcement gear shift lever is pedaled back original position, first chain wheel set is dialled back gear disk in the steel wire extension spring again, uses first speed.Speed-change and gearshift is very flexible.

Claims

1, the passenger-cargo three-wheel vehicle of a kind of manpower speed change, it is characterized in that: also have change-speed box, change-speed box is installed in the rear lower position of vehicle frame by bracing frame (27), change-speed box constitutes two groups of chain sprocket drive with drive sprocket, the chain of three-wheel vehicle, sprocket wheel (8) is connected with the driving wheel (26) of three-wheel vehicle by chain (28), and two sprocket wheels (6), (9) are connected with flywheel (22), (23) by chain (29), (30) in addition; Sprocket wheel (8), (9), (6) order are installed on the center shaft (4) of change-speed box, between two sprocket wheels (9), (6), be provided with gear disk (7), the two ends of gear disk (7) are placed on respectively in the two U type grooves of shifting fork bar (5), U type groove upward movement, gear disk makes progress and meshing connection of sprocket wheel (6) thereupon, U type groove moves downward, gear disk thereupon downwards with meshing connection of sprocket wheel (9); The two ends of change-speed box center shaft (4) are provided with bearing seat (10), (17), are fixed on bearing block support piece (20), (21); Change-speed box has a shift device to be fixed on the position of vehicle frame by tread plate.

2, three-wheel vehicle as claimed in claim 1, it is characterized in that: described gear disk is a disk, the centre has a square hole, evenly distributed 6 shapes, size, thickness is identical, spacing equates double wedge around the tow sides of disk, square hole, in sprocket wheel (9) and (6) near the one side of gear disk have 3 identical with double wedge shape, size, thickness on the gear disk and spacing is its double wedge of 2 times; Described shift fork slide cartridge frame (3) is a rectangle rack, diaxon is a hollow shaft longitudinally, difference built-in two solid shifting fork bars (5), there is a U type groove vertical with its direction the lower end of shifting fork bar (5), be connected with shift fork contiguous block (1) in the upper end of shifting fork bar (5), shift fork contiguous block (1) is provided with orientation lever (2); The center shaft of described change-speed box (4) is a solid axle, position at sprocket wheel (9), (6) place is cylindrical, be on cylinder, to open a breach, be milled with a plane in the position at sprocket wheel (8) place, the position at gear disk (7) place be with gear disk on the rectangular shaft that matches of institute's opening square hole; Described gear device contains gear tube (19) and gear shift lever (18), the gear tube is a right-angled triangle, be installed on the vehicle frame, gear shift lever is the L type, it is inserted in the tube limit, a right angle of gear tube frame on one side, be connected with steel wire extension spring (14) on the termination, another side is fixed on another square edge of gear tube frame; Be fixed with two pulleys (15), (16) on the tricycle frame, be connected with mild steel (13) between two pulleys, between the cross sill of shift fork contiguous block (1) and shift fork sliding rack (3), connect steel wire extension spring (11), the upper end of steel wire extension spring (11) connects one group two steel wire extension springs (12), and extension spring (12) other end is connected with flexible steel-wire rope (13) by pulley (16).

3, manpower speed change three-wheel vehicle as claimed in claim 1 or 2 is characterized in that: described three-wheel vehicle is the cylindrical fireworks that adopt 24 inches wheels and 26 inches wheel institute adapteds.