CN2597324Y

CN2597324Y - Differential mechanism assembly for three-wheel or four-wheel motorcycle

Info

Publication number: CN2597324Y
Application number: CNU03233088XU
Authority: CN
Inventors: 宋志平
Original assignee: 伍本银
Priority date: 2003-01-28
Filing date: 2003-01-28
Publication date: 2004-01-07
Anticipated expiration: 2013-01-28

Abstract

The utility model discloses a compensating gear assembly in a tricycle and a four wheeled motorcycle. The principle shaft of the compensating gear is directly connected with the auxiliary shaft of a motor; the gear key of the principle shaft is sleeved with the principle shaft. The auxiliary shaft of the compensating gear is provided with a larger gear and a small gear. The principle gear meshes with the large gear on the auxiliary shaft, the small gear of which meshes with a final transmission gear which is connected with a compensating gear seat. Two satellite gears are symmetrically connected with the compensating gear seat through a satellite gear pin. The two satellite gears respectively mesh with two side satellite gears which are respectively connected with ball cases of the compensating gears which are connected with the left and right semi axis of the vehicle. The utility model has the advantage of that the compensating gear is directly arranged on the motor needless of transmission shaft of previous compensating gear, which improves the transmission efficiency, simplifies the structure and lowers the cost; the installation of compensating gear ball case and an axle ball case reduces the mechanical vibration; the utility model has small volume, which can enables the tricycle and the four wheeled motorcycle with front positioned or rear positioned driving to achieve the power effect of minitype sedan.

Description

A kind of three-wheel or four-wheel motor cycle differential assembly

Technical field

The utility model belongs to system of vehicle transmission mechanism technical field, is specifically related to a kind of differential assembly that is used on three-wheel or the four-wheel motor cycle.

Technical background

Diff is a driving device important on three-wheel and the four-wheel motor cycle, generally be to link to each other with driving engine by a transmission shaft, be contained in propons or back axle the inside, the output direct connection left and right sides semiaxis of diff, the defective that exists is: 1, required transmission shaft is very long very thick, and need a very heavy vehicle bridge to carry, and driving efficiency is low, and mechanical loss is big; 2, semiaxis is long and heavier, and two tires can not be swung on the road surface of differing heights, and walking in a straight line adds that the runout of transmission shaft self is big again all the time, causes the mechanical shock of vehicle big.

Summary of the invention

The purpose of this utility model is to provide a kind of three-wheel and four-wheel motor cycle differential assembly at the deficiency of prior art existence, does not need the transmission shaft of former diff, directly is contained on the driving engine, improves driving efficiency, simplified structure, cost-cutting; Output is provided with diff ball cage and wheel shaft ball cage, reduces mechanical shock.

The technical solution of the utility model is as follows:

A kind of three-wheel and four-wheel motor cycle differential assembly is characterized in that: the main shaft of diff directly is connected with engine countershaft, and the reaction gear key is enclosed within on the main shaft.The big miniature gears of disjunctor is arranged on the countershaft of diff.Big gear wheel engagement on driving gear and the countershaft, miniature gears and final drive gear engagement on the countershaft.Final drive gear connects the diff seat, two planetary wheels are connected on the diff seat by planetary wheel pin symmetry, two planetary wheels respectively again with both sides star gear mesh, both sides star gear connects diff ball cage respectively, diff ball cage connects the left and right sides semiaxis of vehicle.

The utility model has the advantages that:

1, driving efficiency height, the mechanical power loss is little: this differential assembly directly dock powered vehicle and advances or retreat with driving engine, cancelled the carrying vehicle bridge of not only long but also thick transmission shaft of original diff and heaviness, has improved driving efficiency, has reduced mechanical loss.

2, mechanical shock is little: this structure shortens semiaxis and lightens, and has designed diff ball cage and has been connected semiaxis with wheel shaft ball cage, makes two tires energy individual drive under the situation of different road surfaces, differing heights, and mechanical shock is little.

3, applicability is good: this assembly can be used for the two-wheel car engine four-wheel motor cycle or motor-tricycle, because this device directly is docked on the countershaft of driving engine, volume is less, can make the preposition or rearmounted driving of four-wheel and motor-tricycle, plays the power effect of little car.

Description of drawings

Fig. 1 is the constructional drawing of this differential assembly;

Fig. 2 is differential assembly and engine installation scheme drawing together.

The specific embodiment

Referring to Fig. 1, Fig. 2, this differential assembly comprises spindle part A, counter shaft transmission part B and final running part C, and they all place in the differential casing 1, and there are diff ball cage 2A and 2B in differential casing 1 outer both sides.Spindle partly comprises main shaft 7 and driving gear 6, and driving gear 6 is connected with main shaft 7 by spline.Counter shaft transmission comprises that partly countershaft 5 and key are enclosed within the big miniature gears 8 of disjunctor and 9 above it.Big gear wheel 8 engagements on driving gear 6 and the countershaft, final running part comprises final drive gear 13, diff seat 11, two planetary wheel 10A and 10B, two side star gear 4A, 4B, miniature gears 9 engagements on final drive gear 13 and the countershaft, diff seat 11 is connected with final drive gear 13 by holding screw 14, two planetary wheel 10A are connected with diff seat 11 by planetary wheel pin 12 with 10B, side star gear 4A and 4B are contained in the diff seat 11, with planetary wheel 10A and 10B engagement, planetary wheel 10A, 10B and side star gear 4A, 4B is finishing bevel gear cuter.Side star gear 4A is connected the diff ball cage 2A and the 2B on differential casing 1 outer both sides with 4B, diff ball cage 2A is connected semiaxis 3A and 3B with 2B, connects wheel shaft ball cage 15A, 15B on the drive wheel of both sides more respectively.

Referring to Fig. 2, the main shaft of this assembly 7 directly with after driving engine 16 (as homemade existing C B, CG machine) docks, forms a complete running gear.

This differential assembly working process as follows:

When driving engine was in the work of some gears, engine countershaft (original minor sprocket part) drove diff main shaft 7, driving gear 6 rotations.When vehicle need advance, driving gear 6 drove countershaft big gear wheel 8, another related miniature gears 8 transmission final drive gears 13 and 11 rotations of diff seat on the countershaft big gear wheel 8.Side star gear 4A, 4B in the diff seat 11 drives diff ball cage 2A, 2B and semiaxis 3A, 3B rotation simultaneously, and vehicle is kept straight on.When vehicle need be turned because the adhesive ability of two tire road pavement is not strong, planetary wheel 10A and 10B as required one just change, another counter-rotating makes both sides star gear obtain different rotating speeds, reaches the purpose that turns to smoothly.

Claims

1, a kind of three-wheel or four-wheel motor cycle differential assembly, the main shaft (8) that it is characterized in that diff is directly paid with driving engine and spool is connected, reaction gear (6) key is enclosed within on the main shaft (7), conjuncted big miniature gears (8 is housed on the countershaft of diff (5), 9), driving gear (6) meshes with the big gear wheel (8) of countershaft, miniature gears of countershaft (9) and final drive gear (13) engagement, final drive gear (13) connects diff seat (11), two planetary wheel (10A, 10B) be connected on the diff seat (11) by planetary wheel pin (12) symmetry, respectively again with both sides star gear (4A, 4B) engagement, both sides star gear (4A, 4B) connect diff ball cage (2A respectively, 2B), diff ball cage (2A, 2B) left and right sides semiaxis (the 3A of connection vehicle, 3B).

Differential assembly according to claim 1 is characterized in that planetary wheel (10A, 10B) and side star gear (4A, 4B) are finishing bevel gear cuter.