CN2441677Y

CN2441677Y - Engine back fixed straight coupling backing and driving device

Info

Publication number: CN2441677Y
Application number: CN 00244661
Authority: CN
Inventors: 魏钧
Original assignee: JINLUN INDUSTRY EQUIPMENT DEVELOPMENT Co Ltd CHONGQING
Current assignee: JINLUN INDUSTRY EQUIPMENT DEVELOPMENT Co Ltd CHONGQING
Priority date: 2000-10-13
Filing date: 2000-10-13
Publication date: 2001-08-08
Anticipated expiration: 2010-10-13

Abstract

The utility model relates to a rearmounted in-line back-acting and driving device for an engine, which is characterized in that the left and the right sides of a I shaft are free sheathed with gears 4 and 9 of the I shaft with sectional pawls; the middle part of the I shaft is provided with a coupling hand 6 which is in splined coupling with the I shaft; the gears 12 and 13 of the II shaft which are in the splined coupling with the shaft, and a driving gear 15 are arranged on a II shaft 14; the coupling hand 6 can be driven by a shifting fork 7 to move left and right, and can be respectively engaged with the sectional pawl of the gear 4 or 9 of the I shaft at both ends of the coupling hand; or a gear 13 is rotated to rotate the driving gear and a driven gear, of the driving gear 16, which is arranged on a differential case; the gear which is engaged with the gear 4 of the I shaft is arranged on the II shaft; or a gear idle 10 on a half shaft which is engaged with the gear 9 of the I shaft is engaged with the gear 12 of the II shaft to rotate the driving gear and the driven gear arranged on the differential case.

Description

The engine back fixed straight coupling type backing and driving device

The utility model relates to the driving device of positive three-wheel vehicle motor bike, particularly a kind of regular three-wheeled motor vehicle engine back fixed straight coupling type backing and driving device.

The driving engine of the driving device of motor tricycle of the prior art is exposed, and for natural air cooled, thermal diffusivity is good, but has following defective:

1. mechanical efficiency is lower, is 0.85-0.90;

2. owing to adopt the transmission of chain open type, promptly master, passive chain and mid-secondary transmission make sprocket wheel chain dry friction, quick abrasion, and the life-span is low, and general service life is short, will scrap at 3000-5000KM;

3. owing to adopt open architecture, can't be lubricated driving device;

4. when maintaining, need to change the back axle hinge wheel, tear leaf spring earlier open, back axle and vehicle frame are peeled off, tear back axle then open and change sprocket wheel, very trouble;

5. because driving engine and big of vehicle body are direct-connected, can not intercept vibration source, vibration is big, the noise height;

6. owing to add the case that reverses gear in addition, increased load;

7. drive for straddle type, the traveling comfort that drives is relatively poor, and long-distance driving is tired easily;

8. owing to can not seal fully, must reserve engine starting and driver behavior space, mud, water and dust easily enter in the railway carriage.

The purpose of this utility model is to provide a kind of prior art above shortcomings that can overcome, and is applicable to the engine back fixed straight coupling type backing and driving device of motor tricycle.

Above-mentioned purpose of the present utility model is to realize by such technical scheme, it is a kind of engine back fixed straight coupling type backing and driving device, comprise gear box casing, driving engine, diff, by I, II axle, advancement mechanism, neutral gear mechanism, reverse gear mechanism that semiaxis, catcher, main driven gear and shift fork constitute, wherein be suspended on the bridge bracket of back driving engine by coupler with transmission of power to the I axle that is positioned at change speed gear box; It is characterized in that: an I axle left side, the right side is set with the I shaft gear of band joint pawl, has the catcher of splined with it in the middle of the I axle, have the II shaft gear and the driving gear that connect with male splines on the II axle, catcher is in the drive bottom left of shift fork, moving right can be respectively and the joint pawl engagement of the I shaft gear at its two ends, make with I shaft gear ingear II axle on gear rotation and make driving gear and the driven gear that is installed on the differential gear box rotates, or by with I shaft gear ingear semiaxis on carrier gear and II shaft gear engagement, and make driving gear and the driven gear that is installed on the differential gear box rotates, power transmission to diff, is arrived a left side to power distribution by diff again, right axle shaft promptly drives wheel revolutions.

Said structure of the present utility model can further specify by the embodiment that accompanying drawing provides.

Accompanying drawing is a structure echelon sectional view of the present utility model.

Referring to accompanying drawing: the engine back fixed straight coupling type backing and driving device among the figure, comprise gear box casing, driving engine 1, diff 18, by I, II axle 3 and 14, semiaxis 11, catcher 6, main driven

gear

15 and 16 and shift fork 7 advancement mechanism, neutral gear mechanism, the reverse gear mechanism that constitute, wherein be suspended on driving engine on the bridge bracket of back by coupler 2 with transmission of power to being positioned on the change speed gear box I axle 3; It is characterized in that: the left side of I axle, the right side is set with the I shaft gear 4 and 9 of band joint pawl, has the catcher 6 of splined with it in the middle of the I axle, have the II shaft gear 12 that connects with male splines and 13 and driving gear 15 on the II axle 14, catcher is in the drive bottom left of shift fork 7, move right and to mesh with the I shaft gear 4 at its two ends or 9 joint pawl respectively, or make with I shaft gear 4 ingear II axles on gear 13 rotation and make driving gear and the driven gear 16 that is installed on the differential gear box rotates, or by with I shaft gear 9 ingear semiaxis 11 on carrier gear 10 and 12 engagements of II shaft gear, nibble wheel and rotate and make driving gear and be installed in driven on the differential gear box, power transmission to diff 18, is arrived a left side to power distribution by diff again,

right axle shaft

17 and 19 promptly drives wheel 20 rotations.

In said structure, diff is positioned at spherical shell 21, and spherical shell and change speed gear box are connected as one, and the place of wearing axle on the casing is added with seal ring.

Principle of work of the present utility model is such:

One. advancement function: be suspended on the driving engine 1 of back on the bridge bracket by drive coupling 2 power transmission to I axle 3, I axle left and right side sky is overlapping the I shaft gear 4 and the I shaft gear 9 of band joint pawl, is shaped on spline in the middle of the I axle, catcher 6 is contained in the spline segment of I axle.Three-wheel vehicle advances when travelling, stage clip 8 will take over 6 push to the right side the time, joint pawl engagement with I shaft gear 4, the gear teeth 4 and 13 engagements of II shaft gear, transmit power to (at this moment the I axle is opposite with the hand of rotation of II axle) on the II axle 14, the driving gear 15 that is fixed on the II axle is meshed with hard-wired driven big gear wheel 16 on the differential gear box, gear mesh on this gear and the diff, and transmit power on the diff 18, again by diff power distribution on left half axle 17 and right axle shaft 19, left and right sides semiaxis promptly drives wheel 20 rotation, thereby realizing that three-wheel vehicle advances travels.

Two. neutral gear: when pilot control pull bar 5 when left moves to Neutral Position, catcher 6 is mediated, no power takeoff, car can not travel.

Three. reverse gear function: when pilot control pull bar 5 continues to move to when reversing gear the position to left, the catcher 6 and the joint pawl of I shaft gear 9 are meshed, the gear teeth and empty carrier gear 10 engagements that are enclosed within on the semiaxis 11, carrier gear and II shaft gear 12 engagements that are fixed on the II axle, thereby power transmission to the II axle, the I axle identical with II axle hand of rotation (with underdrive with advance travel identical).Reach the purpose of reverse gear, promptly realized retreating of car.

The advantage that the utility model is following owing to said structure has:

1. the mechanical efficiency height can reach 0.94-0.96;

2. long service life: because gear closed-type cylindrical gearing in case, totally-enclosed oil-bath type is lubricated, gear grinding Decrease littlely, the life-span is long, and maintenance cycle is more than 20000KM, and service life is more than 100,000KM;

3. lubricating method: totally-enclosed oil-bath type is lubricated;

4. because the associated component of back axle assembly can independent dismounting, do not need to peel off with car body, easy to disassemble and assemble, maintenance is convenient;

5. because driving engine and back axle are direct-connected, vibration source is intercepted by leaf spring, vibration damping cover, eliminates and resonates, and vibrates for a short time, and noise is low;

6. change speed gear box carries the reverse gear function, and is easy to operate, reliable;

7. the pedal sitting posture is driven, long-distance driving, indefatigability;

8. the closure of car load is good, can complete closed, and mud, water, dust are difficult for into railway carriage.

Claims

1. engine back fixed straight coupling type backing and driving device, comprise gear box casing, driving engine (1), diff (18), by I, II axle (3) and (14), advancement mechanism, neutral gear mechanism, reverse gear mechanism that semiaxis (11), catcher (6), main driven gear (15) and (16) and shift fork (7) constitute, wherein be suspended on the back bridge bracket driving engine by coupler (2) with transmission of power to the I axle (3) that is positioned at change speed gear box; It is characterized in that: the left side of I axle, the right side is set with I shaft gear (4) and (9) of band joint pawl, has the catcher of splined (6) with it in the middle of the I axle, have the II shaft gear (12) and (13) and the driving gear (15) that connect with male splines on the II axle (14), catcher is in the drive bottom left of shift fork (7), move right and to mesh with the I shaft gear (4) at its two ends or the joint pawl of (9) respectively, or make with I shaft gear (4) ingear II axle on gear (13) rotation and make driving gear and the driven gear (16) that is installed on the differential gear box rotates, or by with I shaft gear (9) ingear semiaxis (11) on the engagement of carrier gear (10) and II shaft gear (12), and make driving gear and the driven gear that is installed on the differential gear box rotates, power transmission to diff (18), is arrived a left side to power distribution by diff again, right axle shaft (17) and (19) promptly drive wheel (20) rotation.

2. engine back fixed straight coupling type backing and driving device according to claim 1 is characterized in that: diff is positioned at spherical shell (21), and spherical shell and change speed gear box are connected as one, and the place of wearing axle on the casing is added with seal ring.