CN2649393Y

CN2649393Y - Reverse gear driving device

Info

Publication number: CN2649393Y
Application number: CN 200320114814
Authority: CN
Inventors: 李平
Original assignee: CHONGQING WANHU MECHANICAL AND ELECTRICAL Co Ltd
Current assignee: CHONGQING WANHU MECHANICAL AND ELECTRICAL Co Ltd
Priority date: 2003-10-16
Filing date: 2003-10-16
Publication date: 2004-10-20
Anticipated expiration: 2013-10-16

Abstract

The utility model relates to a reverse gear driving device, including a shift change mechanism, a reverse gear speed reducing mechanism and a one body differential assemble (12). The utility model is characterized in that: the reverse gear speed reducing shell body (10) is isolated into upper and lower two parts, and the shift change mechanism and a first class speed reducing mechanism of the reverse gear speed reducing mechanism is provided at the lower part of the reverse gear speed reducing shell body (10) and is connected with an output transmission shaft of the engine drive. A second class speed reducing mechanism of the reverse gear mechanism and the differential assemble (12) are provided at the lower part of the reverse gear speed reducing shell body (10) and is connected with the left and right half shaft of the bridge shell. The utility model makes all parts organically connected to be a whole body with reasonable layout, compact structure, and reducing column; The utility model applies a division lubrication with a gear wheel not easy to damage; the utility model has advantages of strong bearing ability, stable operation, small noise and convenient installment and maintenance.

Description

A kind of reverse drive device

Technical field

The utility model relates to automotive component, is specifically related to a kind of reverse drive device that is used for the horizontal three-wheel of driving engine, four-wheel motor cycle.

Background technology

The three-wheel that volume is little in order to strengthen, wheelbase is short or the manoevreability of four-wheel motor cycle are set up independently gear reversing device usually between driving engine and differential assembly, be contained in outside the driving engine to be connected with the output shaft of driving engine is rigid.Though this independently gear reversing device can be realized the function of reverse gear, complex structure, setting accuracy require height, easy trip stop, poor reliability, the output shaft of damage easily, wearing and tearing driving engine, and dismantle, keep in repair very difficult.The deficiency that exists at gear reversing device independently, people have designed and manufactured the whole box back axle of a kind of reverse gear again, reverse gear mechanism and differential assembly connected as one be contained in the casing, solve setting accuracy to a certain extent and required the problem high and engine output shaft that weares and teares easily, but put because each driving gearshaft is horizontal, gear is vertical, reverse gear mechanism and differential assembly connect as one in addition, make that structure is not compact, box sizes increases; Adopt the conical gear pair of big modulus, big speed ratio because one-level is slowed down, gear diameter increases, the also corresponding increase of box sizes; Because double reduction adopts the cylindrical gear pair of little modulus, close steps, has increased semiaxis and has born moment of torsion, watt loss is big, and is all unfavorable to the intensity and the cylindrical wheel life-span of semiaxis.In addition, the whole box back axle of this reverse gear only takes integral type lubricated, because of gear pairs at different levels are that staggered floor is arranged, rotate lubrication by atomization oil lubrication upper strata gear pair by gear, so the poor lubrication of upper strata gear pair, wearing and tearing easily, life-span weak point, and assemble, dismantle all inconvenient.

Summary of the invention

Goal of the invention of the present utility model provides a kind of reverse drive device, its compact conformation, rationally distributed, volume is little, and is lubricated good, gear is not easy to wear, load-carrying capacity is strong, running steadily, noise is little, assembling, easy to maintenance is applicable to the horizontal three-wheel of driving engine, four-wheel motor cycle.

A kind of reverse drive device described in the utility model, comprise gear shift mechanism, reverse gear speed reduction gearing and connect as one differential assembly with it, it is characterized in that: the reverse gear decelerating casing is divided into two parts up and down, the first class reducer structure of gear shift mechanism and reverse gear speed reduction gearing is located at the top of reverse gear decelerating casing and is connected with the take-off (propeller) shaft of engine power, and the two reduction gear of reverse gear speed reduction gearing and differential assembly are located at the bottom of reverse gear decelerating casing and are connected with left and right half in the axle housing.Like this, each parts organically forms integral structure, and can realize that subregion is lubricated, improves the lubricating condition of each gear, increases the service life.

Described a kind of reverse drive device, its gear shift mechanism vertically is located at the top of reverse gear decelerating casing, the imput shaft of reverse gear speed reduction gearing, idler shaft and spline tooth wheel shaft, three axles vertically are arranged in reverse gear decelerating casing top, and in the first lubricated district, structure is quite compact, gear on the axle all adopts little modulus, close steps cylindrical wheel, can dwindle the gear diameter size, reduce the oad of the device first half, reduced volume; Imput shaft is provided with reverse driving gear and the driving gear that advances, and the upper end of imput shaft passes with the take-off (propeller) shaft of reverse gear decelerating casing bonded assembly cap and engine power and is connected; Be provided with oil sealing in imput shaft and cap cooperation place; Idler shaft is provided with idle gear, the reverse driving gear constant-mesh on idle gear and the imput shaft; The lower end of spline tooth wheel shaft is provided with initiatively conical gear, initiatively conical gear is positioned at the bottom of reverse gear decelerating casing, the top of spline tooth wheel shaft is provided with the spline driven gear, on spline driven gear and the imput shaft advance driving gear engagement or with idler shaft on the idle gear engagement, be provided with oil sealing in the cooperation place, interval at spline tooth wheel shaft and reverse gear decelerating casing middle part; When power that driving engine sends was delivered to spline driven gear engagement on advance driving gear and the spline tooth wheel shaft on the imput shaft and on the imput shaft by take-off (propeller) shaft, motor bike to overtake; When power that driving engine sends be delivered on the imput shaft by take-off (propeller) shaft and the spline tooth wheel shaft on the spline driven gear and idler shaft on during the idle gear engagement, motor bike falls back and travels.

Described a kind of reverse drive device, its differential assembly is connected bearing FE Tiler and differential assembly on the bearing seat of reverse gear decelerating casing bottom by bolt, be contained on the conical gear on the right axle shaft and with its driven bevel gear that rotates synchronously, active conical gear engagement with spline tooth wheel shaft lower end, axle housing covers on the outside of differential assembly and is connected with the bottom of reverse gear decelerating casing, the formation second lubricated district makes each conical gear that is in the second lubricated district obtain good lubricating.

Described a kind of reverse drive device, it is located at the gear shift mechanism on the reverse gear decelerating casing, by being stuck in shift fork in the spline driven gear circular groove, the declutch shift shaft that cooperates with shift fork, forming with shift fork bonded assembly rotating shaft rocking arm, shift fork can be along the declutch shift shaft moving linearly, and the spacing by two positioning ring grooves on the declutch shift shaft and the spring on the shift fork and steel ball reach the stroke location.The rotating shaft rocking arm is turned an angle, stir shift fork along the declutch shift shaft moving linearly, simultaneously the V-arrangement card on the shift fork is stuck in the circular groove on the spline driven gear, make the spline driven gear along spline tooth wheel shaft moving linearly, make the spline driven gear and the driving gear engagement of advancing, perhaps, realize the function that motor bike advances or falls back with the idle gear engagement.

Described a kind of reverse drive device, the reverse driving gear that the imput shaft of reverse gear speed reduction gearing is provided with is an integral structure with advance driving gear and imput shaft, idle gear that idler shaft is provided with and idler shaft also are integral structure.Like this, can strengthen load-carrying capacity, make running steadily, noise reduces.

The utility model organically is connected to an integral body with each parts, and is rationally distributed, makes compact conformation, and volume reduces; Take subregion lubricated, make each gear obtain good lubricating, gear is not easy to wear, has prolonged service life; Not only load-carrying capacity is strong, running is steady, noise is little, and assembling and easy to maintenance.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the birds-eye view of Fig. 1.

The specific embodiment

Referring to Fig. 1 and Fig. 2, to be provided with reverse driving gear 2 and the imput shaft 1 of the driving gear 3 that advances, the idler shaft 6, the lower end that are provided with idle gear 9 are provided with conical gear 4 tops initiatively the top that the spline tooth wheel shaft 7 of spline driven gear 11 is contained in reverse gear decelerating casing 10 is housed, and idle gear 9 and reverse driving gear 2 are meshed, initiatively conical gear 4 is positioned at the bottom of reverse gear decelerating casing 10, oil sealing 19 under installing in spline tooth wheel shaft 7 and cooperation place, reverse gear decelerating casing 10 middle part simultaneously; The declutch shift shaft 15 of gear shift mechanism is contained in reverse gear decelerating casing 10 inside, shift fork 14 is contained in the lower end of declutch shift shaft 15, V-arrangement card on the shift fork 14 is stuck in the circular groove on the spline driven gear 11, rotating shaft rocking arm 16 is contained in the upper end of declutch shift shaft 15, make the shift fork 14 can be along declutch shift shaft 15 moving linearlies, and spacing and spring 22 on the shift fork 14 and steel ball 23 location strokes by two positioning ring grooves on the declutch shift shaft 15; Cap 8 is connected the upper end of reverse gear decelerating casings 10, make the upper end of imput shaft 1 pass cap 8, so that be connected with the take-off (propeller) shaft of engine power, and install oil sealing 18 in imput shaft 1 and cap 8 cooperation places, the upper end of declutch shift shaft 15 is connected with rotating shaft rocking arm 16; With driven bevel gear 5 be contained in its right axle shaft that rotates synchronously on conical gear on, and with active conical gear 4 engagements of spline tooth wheel shaft 7 lower ends; By bolt bearing FE Tiler 13 and differential assembly 12 are connected on the bearing seat of reverse gear decelerating casing 10 bottoms, axle housing 21 covers on the outside of differential assembly 12 and is connected with the bottom of reverse gear decelerating casing 10 and gets final product again.Engine power is delivered on the imput shaft 1 by take-off (propeller) shaft, drive the reverse driving gear 2 on the imput shaft 1 and advance driving gear 3 rotations, also rotate with the idle gear 9 of reverse driving gear 2 constant-meshes, but rotation direction is opposite with reverse driving gear 2 thereupon; The rotating shaft rocking arm 16 of gear shift mechanism is turned an angle, stir shift fork along the declutch shift shaft moving linearly, simultaneously the V-arrangement card on the shift fork 14 is stuck in the circular groove on the spline driven gear 11, make spline driven gear 11 along spline tooth wheel shaft 7 moving linearlies, make spline driven gear 11 and advance driving wheel engagement 3 and drive its forward rotation, the active conical gear 4 of spline tooth wheel shaft 7 and lower end is forward rotation also, also rotate with active conical gear 4 ingear driven bevel gears 5 thereupon, and a drive and differential assembly 12 bonded assembly left sides, right axle shaft rotates, and motor bike promptly to overtake; The rotating shaft rocking arm 16 of gear shift mechanism is rotated another angle, make spline driven gear 11 and idle gear 9 mesh and drive its backward rotation, the active conical gear 4 of spline tooth wheel shaft 7 and lower end is backward rotation also, with active conical gear 4 ingear driven bevel gears 5 also change of direction rotation thereupon, and drive and differential assembly 12 bonded assembly left and right half backward rotation, motor bike promptly falls back backward.

Claims

1, a kind of reverse drive device, comprise gear shift mechanism, reverse gear speed reduction gearing and connect as one differential assembly (12) with it, it is characterized in that: reverse gear decelerating casing (10) is divided into two parts up and down, the first class reducer structure of gear shift mechanism and reverse gear speed reduction gearing is located at the top of reverse gear decelerating casing (10) and is connected with the take-off (propeller) shaft of engine power, and the two reduction gear of reverse gear speed reduction gearing and differential assembly (12) are located at the bottom of reverse gear decelerating casing (10) and are connected with left and right half in the axle housing (20).

2, according to the described a kind of reverse drive device of claim 1, it is characterized in that: gear shift mechanism vertically is located at the top of reverse gear decelerating casing (10); The imput shaft of reverse gear speed reduction gearing (1), idler shaft (6) and spline tooth wheel shaft (7) vertically are arranged in reverse gear decelerating casing (10) top, imput shaft (1) is provided with reverse driving gear (2) and the driving gear that advances (3), the upper end of imput shaft (1) passes with the take-off (propeller) shaft of reverse gear decelerating casing (10) bonded assembly cap (8) and engine power and is connected, and is provided with oil sealing (18) in imput shaft (1) and cap (8) cooperation place; Idler shaft (6) is provided with idle gear (9), reverse driving gear (2) constant-mesh on idle gear (9) and the imput shaft (1); The lower end of spline tooth wheel shaft (7) is provided with initiatively conical gear (4), initiatively conical gear (4) is positioned at the bottom of reverse gear decelerating casing (10), the top of spline tooth wheel shaft (7) is provided with spline driven gear (11), the driving gear that advances (3) engagement on spline driven gear (11) and the imput shaft (1) or with idler shaft (6) on idle gear (9) engagement, be provided with oil sealing (19) down in the cooperation place, interval at spline tooth wheel shaft (7) and reverse gear decelerating casing (10) middle part.

3, according to the described a kind of reverse drive device of claim 1, it is characterized in that differential assembly (12) is connected on the bearing seat of reverse gear decelerating casing (10) bottom by bolt and bearing FE Tiler (13), be contained in active conical gear and its driven bevel gear (5) that rotates synchronously of the differential assembly on the right axle shaft, with active conical gear (4) engagement of spline tooth wheel shaft (7) lower end, axle housing (20) covers on the outside of differential assembly (12) and is connected with the bottom of reverse gear decelerating casing (10).

4, a kind of reverse drive device according to claim 1, it is characterized in that: it is located at the gear shift mechanism on the reverse gear decelerating casing (10), by being stuck in shift fork (14) in spline driven gear (11) circular groove, the declutch shift shaft (15) that cooperates with shift fork (14), forming with shift fork (14) bonded assembly rotating shaft rocking arm (16), shift fork (14) can be along declutch shift shaft (15) moving linearly, and the spacing by last two positioning ring grooves of declutch shift shaft (15) and the spring (22) on the shift fork (14) and steel ball (23) reach the stroke location.

5, a kind of reverse drive device according to claim 1 is characterized in that: reverse driving gear (2) that imput shaft (1) is provided with and the driving gear that advances (3) are integral structure with imput shaft (1); The idle gear (9) that idler shaft (6) is provided with is an integral structure with idler shaft (6).