CN201380754Y - Limit condition vehicle power assembly - Google Patents

Abstract

The power assembly of the extreme condition vehicle comprises an automobile engine, a clutch, an automobile gearbox and a transfer case, and is characterized in that the engine and the automobile gearbox are separately arranged, the engine is positioned at the front end of a frame, the automobile clutch is arranged at the output end of the engine, and the gearbox is positioned in the middle of the frame and connected with the automobile clutch through a transmission shaft. The utility model integrates the gearbox and the transfer case into a whole and is arranged in the middle of the whole vehicle independently; the vibration load generated to the engine mount when the engine works is effectively reduced, the engine mount is protected, and the service life of the engine mount is prolonged. Meanwhile, the gearbox and the transfer case are integrated and arranged in the middle of the whole vehicle, so that most of load is prevented from being intensively arranged at the front end of the vehicle, and the load distribution of the front shaft and the rear shaft is optimized.

Description

Power train of limit-condition automobile

Technical field

The utility model belongs to the truck field, especially relates to a kind of power train of limit-condition automobile, is applicable to 4x4 limiting condition cross country car.

Background technology

At present, each automobile vendor of the world has all developed the 4x4 limit-condition automobile of different-style, the power that their driving engine sends all is directly to be transferred to change speed gear box by power-transfer clutch, by passing to auxiliary gear box by transmission shaft after the change speed gear box speed change, and then redistribute according to demand by auxiliary gear box, drive axle before and after passing to respectively, thus powered vehicle is advanced.This traditional arrangement is combined as a whole driving engine, power-transfer clutch, change speed gear box and is installed in the vehicle frame front end by engine mounting, and the high vibration that produces during engine operation all acts on the engine mounting.When the vehicle ' road conditions were abominable, vibration is aggravation at double, and engine mounting is worked under the situation of bearing the super large vibrational load, very easily is damaged, and influences vehicle driving safety.Mainly concentrate on operator's compartment, driving engine and the change speed gear box owing to limit-condition automobile load in addition, this arrangement that driving engine, power-transfer clutch, change speed gear box are concentrated in together, can cause vehicle front and back load distribution inequality, the whipping phenomenon takes place in Ackermann steer angle easily, even the danger that rollover takes place is arranged, driver and crew's life security will be on the hazard.

The utility model content

The purpose of this utility model is in order to overcome the deficiency that the above-mentioned background technology exists; provide a kind of can effectively reduce engine operation the time to vibrational load that engine mounting produced; effectively the protection engine mounting improves the engine mounting power train of limit-condition automobile in service life.Make it can optimize the distribution of automobile front and back axle load.

For achieving the above object, the utility model is by the following technical solutions: power train of limit-condition automobile, comprise automotive engine, power-transfer clutch, automobile gearbox and auxiliary gear box, it is characterized in that described driving engine and automobile gearbox are arranged apart, driving engine is positioned at the vehicle frame front end, autoclutch is installed in the driving engine mouth, and change speed gear box is positioned at the central frame beam position, and is connected by transmission shaft between the autoclutch.

In such scheme, the mouth of described power-transfer clutch can have output flange, and this output flange is connected with transmission shaft one end.

In such scheme, described power-transfer clutch comprises clutch driving case, clutch driven disc, platen, friction lining, the clutch output shaft of captiveing joint with clutch plate and clutch cover back plate, its feature is captiveed joint with the end of clutch output shaft mouth at an end that is described output flange, the other end passes housing, extend to hull outside, link to each other with transmission shaft.

In such scheme, it is characterized in that described power-transfer clutch is a clutch with diaphragm spring; Be provided with diaphragm spring between described platen and the clutch cover back plate, the outward flange of described diaphragm spring is connected with the platen contact, is provided with driven roller between described diaphragm spring and the clutch cover back plate.

In such scheme, described change speed gear box and auxiliary gear box preferably become one, and a mouth of auxiliary gear box links to each other with preceding vehicle bridge by front propeller shaft, and another mouth links to each other with the back vehicle bridge by rear propeller shaft.

The beneficial effects of the utility model are as follows:

The utility model becomes one change speed gear box and auxiliary gear box, is arranged in the car load midway location separately; To the vibrational load that engine mounting produced, protect engine mounting when effectively reducing engine operation, improved the service life of engine mounting.Simultaneously, the integrated car load midway location that is arranged in of change speed gear box and auxiliary gear box has also been avoided most of load concentration is arranged in vehicle front, has optimized front/rear weight distribution.

Description of drawings

Fig. 1: the utility model structural representation;

Fig. 2: the utility model embodiment front view;

Fig. 3: the utility model embodiment birds-eye view;

Fig. 4: the utility model embodiment change speed gear box and auxiliary gear box structure diagram.

Fig. 5: the clutch configuration scheme drawing of flanged output.

The specific embodiment:

Below in conjunction with the accompanying drawing illustrated embodiment the utility model is described in further details.Referring to figs. 1 through Fig. 4, power train of limit-condition automobile described in the utility model mainly comprises 1 of automobile engine, power-transfer clutch 2, automobile gearbox 3 and auxiliary gear box 4, described driving engine 1 is arranged apart with automobile gearbox 3, driving engine is positioned at vehicle frame 5 front ends, the power-transfer clutch 2 of flanged output is installed in the driving engine mouth, change speed gear box 3 is positioned at vehicle frame 5 midways location, with pass through between the output flange of autoclutch 2 between be connected by transmission shaft 6.Described change speed gear box 3 becomes one with auxiliary gear box 4, and the preceding clutch end 9 of auxiliary gear box 4 links to each other with propons by front propeller shaft 7, and back clutch end 10 links to each other with back axle by rear propeller shaft 8.

The change speed gear box 3 of band auxiliary gear box 4 can pass to propons and back axle with the power from power-transfer clutch 2 respectively through the forward and backward clutch end 9,10 of auxiliary gear box in proportion, the preceding clutch end 9 of auxiliary gear box is connected with automobile front axle by front propeller shaft 7, and back clutch end 10 is connected with automobile axle by rear propeller shaft 8.

With reference to Fig. 5, the power-transfer clutch 2 of the flanged output that the utility model is designed has a housing 21 that is fixedly linked with driving engine 1, is equipped with clutch driving case 22, clutch driven disc 23, platen 24, friction lining 25, the clutch output shaft 26 of captiveing joint with clutch plate and clutch cover back plate 27 in the described housing 21.Described clutch driving case 22 links to each other with the output shaft of driving engine 1, the power of driving engine 1 is transported to clutch driving case 22, and combining between platen 24 and friction lining 25 control clutch driving disc spacing pressings 22 and the clutch driven disc 23, thereby the conduction or the disconnection of control power.Can make with the friction lining 25 of clutch driven disc 23 captive joints by platen 24 compressing clutch driven discs 23 to contact, utilize friction force to make the two realization power transmission with clutch driving case 22; Just can disconnect contacting of friction lining 25 and clutch driving case 22 and unclamp platen 24, thereby disconnect power transmission.At flange output shaft 11 of end captive joint of clutch output shaft 26 mouths, flange output shaft 11 passes housing 21, extends to housing 21 outsides.Setting up flange output shaft 11 can be convenient to clutch output shaft 26 and be connected with transmission shaft 6.After driving engine and change speed gear box are arranged apart,, the input shaft of clutch output shaft 26 with change speed gear box linked together after also can connecing transmission shaft 6 by flange output shaft 11 even distance is far between driving engine and the change speed gear box.

The above-mentioned power-transfer clutch 2 preferred clutch with diaphragm springes that adopt; Be provided with diaphragm spring 28 between described platen 24 and the clutch cover back plate 27, the outward flange of described diaphragm spring 28 is connected with platen 24 contacts, is provided with driven roller 29 between described diaphragm spring 28 and the clutch cover back plate 27.This power-transfer clutch can be according to the combination of the speed change automatic guidance power-transfer clutch of driving engine 2 bent axles.When the crankshaft rotating speed of driving engine 1 increases, because action of centrifugal force, make the increase that moves radially of driven roller 29, at this moment, and diaphragm spring 28 compressing platens 24 extruding clutch driven discs 26, thus guarantee that power-transfer clutch moves and combination along bonding position gradually.At this moment, the power that driving engine sends is given flange output shaft 11 through clutch transmits, passes to change speed gear box by flange output shaft 11 by transmission shaft 6 again.

During assembling, power-transfer clutch 2 is held together by housing 21 and driving engine 1, and the power-transfer clutch mouth is connected with the input end of change speed gear box after connecting transmission shaft 6 by flange output shaft 11.

Claims (5)

1, power train of limit-condition automobile, comprise automotive engine, power-transfer clutch, automobile gearbox and auxiliary gear box, it is characterized in that described driving engine and automobile gearbox are arranged apart, driving engine is positioned at the vehicle frame front end, autoclutch is installed in the driving engine mouth, change speed gear box is positioned at the central frame beam position, and is connected by transmission shaft between the autoclutch.

2, power train of limit-condition automobile according to claim 1 is characterized in that the mouth of described power-transfer clutch has output flange, and this output flange is connected with transmission shaft one end.

3, power train of limit-condition automobile according to claim 2, described power-transfer clutch comprises clutch driving case, clutch driven disc, platen, friction lining, the clutch output shaft of captiveing joint with clutch plate and clutch cover back plate, its feature is captiveed joint with the end of clutch output shaft mouth at an end that is described output flange, the other end passes housing, extend to hull outside, link to each other with transmission shaft.

4, power train of limit-condition automobile according to claim 3 is characterized in that described power-transfer clutch is a clutch with diaphragm spring; Be provided with diaphragm spring between described platen and the clutch cover back plate, the outward flange of described diaphragm spring is connected with the platen contact, is provided with driven roller between described diaphragm spring and the clutch cover back plate.

5, according to the described power train of limit-condition automobile of arbitrary claim in the claim 1 to 4, it is characterized in that described change speed gear box and auxiliary gear box become one, a mouth of auxiliary gear box links to each other with preceding vehicle bridge by front propeller shaft, and another mouth links to each other with the back vehicle bridge by rear propeller shaft.

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