CN2428339Y

CN2428339Y - Speed variator special low-floor coach

Info

Publication number: CN2428339Y
Application number: CN 00224923
Authority: CN
Inventors: 罗元月; 魏文峰; 阙定胜; 邓立勇; 谭德日; 卢致辉; 曾文明; 邱显平
Original assignee: Shaoguan Hongda Gear Co ltd
Current assignee: Shaoguan Hongda Gear Co ltd
Priority date: 2000-05-26
Filing date: 2000-05-26
Publication date: 2001-05-02
Anticipated expiration: 2010-05-26

Abstract

The utility model relates to a special speed variator for a low-floor coach. Apart from being composed of a casing, a shaft assembly, an intermediate shaft assembly, a reverse-gear and a shaft thereof and a double-shaft assembly, the utility model is characterized in that the special speed variator for low-floor coach is arranged in the casing or on the casing, the utility model also comprises a steering output gear and a shaft thereof, a driving and a driven bevel gear sets and an output shaft, a shaft is vertically crossed with the output shaft and is perpendicular to the output shaft, and after the special speed variator for low-floor coach, an engine and a clutch are transversely arranged on the back bridge of an automobile, the output shaft of the special speed variator for low-floor coach drives the back bridge. The utility model has the advantages that the special speed variator for low-floor coach makes a carriage have a low floor so as to be convenient for passengers to get on and off the coach, particularly for children and old men to get on and off the coach, and the special speed variator for low-floor coach is a post-position type so as to have low noise, large upslope attaching force, simple operation, low labor intensity and stable high-speed running when the automobile runs.

Description

The special-purpose change-speed box of low-floor bus

The utility model relates to motor passenger vehicle change-speed box new varieties.

At present, the leading change-speed box of domestic passenger vehicle all is that input shaft is collinear or parallel with the output shaft direction, driving engine, power-transfer clutch, change-speed box is vertically placed load carrying floor can't be lowerd, cause the floor higher, make child, on the old man, it is very inconvenient to get off, want to reduce floor level, unique feasible method just only takes driving engine laterally preposition, the form of f-w-d, arrange the chassis like this, both strengthened the noise in the railway carriage when travelling, too little and can not obtain enough tractive forces when causing going up a slope again as the front-wheel adhesive ability of drive wheel, can not give full play to the grade climbing performance of automobile, and abroad, engine at extreme rear, the motor omnibus of back-wheel drive, its driving engine, power-transfer clutch, change-speed box also all is horizontally placed on after the drive axle, drive axle adopts dependent suspension, but because change-speed box also is traditional parallel-axis type speed variator, therefore, requirement is provided with direction driving device and angle transmission between change-speed box and main reduction gear, like this, must make between change-speed box and the main reduction gear distance bigger, and cause the steering unit of driving engine and transmission clutch all complicated, both improved the manufacturing cost of automobile, the labour intensity when having strengthened driver operation again.

The purpose of this utility model is to provide that a kind of load carrying floor can be lowerd, automobile upward slope adhesive ability is big, noise is low, handles the special-purpose change-speed box of simple low-floor bus.

The utility model is to adopt the also vertical mode of change-speed box power input shaft and power take-off shaft grade separation to achieve the goal, output shaft is with 90 ° of one group of bevel gear change of directions, after change-speed box places back axle, the gearbox output direction is consistent with the automobile working direction, the direct drive trailing wheel, drive axle-free between the bridge before and after the automobile can make in the compartment floor lower and leans back.

The utility model characteristics: one is to use this change-speed box, and the passenger car floor is low, is convenient to the passenger and gets on or off the bus, and especially is convenient to child, the old man gets on or off the bus; The 2nd, this change-speed box is rear-mounted, and noise is little during running car, and upward slope adhesive ability is big, handles simply, and labour intensity is little, and it is stable to run at high speed.

Below in conjunction with accompanying drawing embodiment is described:

Fig. 1 is the multistage cut-away diagram in this change-speed box plane.

Fig. 2 looks scheme drawing for this change-speed box master.

With reference to Fig. 1-2, this change-speed box removes by housing (13) and is positioned on a shaft-cup (14) in the housing or on the housing, one axle assembly (15), countershaft assembly (16), reverse gearwheel (17), reverse gearwheel axle (18), two bonnets (19), outside two axle assemblies (20) are formed, be positioned on and turn to output gear (1) in addition in the housing or on the housing, turn to output shaft (2), driving bevel gear (3), passive bevel gear (4), output shaft (5), output flange (6), jam nut (7,12), oil sealing (8), bearing (9,10), output shaft end cap (11), turn to output shaft (2) right part and left neck to be positioned on housing (13) lining with bearing, its right neck is equipped with and turns to output gear (1), the left part is equipped with driving bevel gear (3), turn to output shaft (2) two ends to lock with jam nut, turn to output gear (1) and two (20) engagement that cogs, output shaft (5) middle part bearing (9,10) be positioned on the output shaft end cap (11), output shaft end cap (11) is positioned on housing (13) the right-hand member hole, output shaft (5) the inner is equipped with passive bevel gear (4), lock with jam nut (12), the outer end is equipped with output flange (6), lock with jam nut (7), passive bevel gear (4) and initiatively umbrella (3) engagement, output shaft (5) and (15) grade separation and vertical.

Claims

The special-purpose change-speed box of a kind of low-floor bus, remove by housing (13) and be positioned on a shaft-cup (14) in the housing or on the housing, one axle assembly (15), countershaft assembly (16), reverse gearwheel (17), reverse gearwheel axle (18), two bonnets (19), outside two axle assemblies (20) are formed, it is characterized in that this change-speed box is positioned on turns to output gear (1) in the housing or on the housing in addition, turn to output shaft (2), driving bevel gear (3), passive bevel gear (4), output shaft (5), output flange (6), jam nut (7,12), oil sealing (8), bearing (9,10), output shaft end cap (11), turn to output shaft (2) right part and left neck to be positioned on housing (13) lining with bearing, its right neck is equipped with and turns to output gear (1), the left part is equipped with driving bevel gear (3), turn to output shaft (2) two ends to lock with jam nut, turn to output gear (1) and two (20) engagement that cogs, output shaft (5) middle part bearing (9,10) be positioned on the output shaft end cap (11), output shaft end cap (11) is positioned on housing (13) the right-hand member hole, output shaft (5) the inner is equipped with passive bevel gear (4), lock with jam nut (12), the outer end is equipped with output flange (6), lock with jam nut (7), passive bevel gear (4) and initiatively umbrella (3) engagement, output shaft (5) and (15) grade separation and vertical.