CN2180829Y - Differential wheel system automatic gearing box for vehicles - Google Patents

Abstract

The utility model relates to a differential wheel system automatic speed changing box for vehicles, which belongs to the speed changing system of vehicles. The utility model is composed of shafts, differentiators and cylindrical gears, wherein, the gear [13], the differentiator [11] and the gear [15] are arranged on the input shaft [19] in turn; the gear [13] and the gear [15] are separately engaged with the gear [14] and the gear [16] which are arranged on the shaft [10]; the gear [14] is fixed on the shaft [10]; the gear [14], the gear [16], the differentiator [12] and the gear [17] are arranged on the shaft [10] from left to right in turns; the gear [17] is engaged with the gear [18] which is arranged on the shaft [20], an output shaft; the gears and differentiators can be arranged on the shaft [20], according to the arrangement structure of the gears and differentiators which are arranged on the shaft [10]. The utility model is suitable for automatic speed changing systems of various vehicles.

Description

Differential wheel system automatic gearing box for vehicles

Vehicle differential gear train automatic transmission case belongs to the speed variator system of vehicle.

Existing vehicle gear box as shown in Figure 1, all adopt the hand control handle to move the mode of ［ 2 ］, ［ 4 ］, ［ 6 ］ three-speed gear (or the centrifugal device that closes) and the gear ［ 1 ］ on the input shaft ［ 7 ］, ［ 3 ］, ［ 5 ］ and mesh respectively and come the conversion class, make output shaft ［ 8 ］ obtain different rotating speeds.Have the vehicle speed change under steam of this gearbox, can not leave the gear shift of hand control handle, cause work load to the driver; Also may be unskilled or nervously cause operate miss to damage gear or other mechanisms because of driver's operation, thus engine misses cause driving accident.

External in recent years senior luxury models have carrier wheel (or clutch) auto-shifting device of installation liquid (gas) power or electric power, and its shift signal is all from the electronic auto-control system, so price is high, general vehicle does not all adopt.

The purpose of this utility model be to provide a kind of pure machinery, without hand control, just under steam, when resistance wheel square difference such as load-carrying, trip-start and road surface variation and needs change the vehicle rotating speed, can regulate the vehicle differential gear train automatic transmission case of the speed of a motor vehicle automatically according to vehicle.

The utility model is to utilize the differentiator be made up of two pairs of cone gears to combine with cylindrical gears, realizes automatic control velocity.This mode of utilizing differentiator and cylindrical gears combination speed change, the application area that makes original differentiator are the gear device etc. that needs sedan-chair behind the Transmitted chains of branch's additional movement such as the automobile, gear making machine in the mechanical transmission, and expansion has been arranged again.

The purpose of this utility model is achieved in that

Vehicle differential gear train automatic transmission case, by axle, differentiator and gear are formed, its input shaft ［ 19 ］ is a same axis with the main shaft of differentiator ［ 11 ］, differentiator ［ 11 ］ the main shaft left and right sides is separately installed with gear ［ 13 ］ and ［ 15 ］, gear ［ 13 ］ and ［ 15 ］ are meshed respectively at gear ［ 14 ］ and ［ 16 ］ on the axle ［ 10 ］, gear ［ 14 ］ is fixed on the axle ［ 10 ］, on the axle ［ 10 ］ gear ［ 14 ］ is installed successively from left to right, ［ 16 ］, differentiator ［ 12 ］ and gear ［ 17 ］, gear ［ 17 ］ and axle ［ 20 ］ are gear ［ 18 ］ engagement on the output shaft, gear ［ 18 ］ is fixed on the axle ［ 20 ］, on output shaft ［ 20 ］, still can gear and differentiator be installed according to the arranging structure of axle ［ 10 ］, and with axle ［ 10 ］ on the respective gears engagement.

Between gear ［ 13 ］ and the gear ［ 15 ］ third wheel ［ 9 ］ can be installed, be used for changing the gear sense of rotation.

Because the moving line of each differentiator all is three, just three kinds of rotating speeds: the umbrella gear in (1) differentiator left side rotates, and does not change on the right side, and then the left side umbrella gear rotates with 2 times of revolutions to the differentiator cross axle; (2) umbrella gear in differentiator left side does not change, and right umbrella gear changes, and then right umbrella gear is with 2 times of rotational speed to the differentiator cross axle; (3) unitary rotation of differentiator left and right sides umbrella gear and cross axle; So the utility model automatic transmission case variable velocity shelves number is: 3 ⁿ-1, n is the number of differentiator combination, so according to actual needs, can select the combined number of differentiator arbitrarily.

Adopt the utility model vehicle differential gear train automatic transmission case, can be according to different needs of resistance wheel square such as vehicle driving, load-carrying, vehicle launch and road surface variations, come automatic governing speed, thereby alleviated driver's work load, also reduced the loss of vehicle mechanism.

Fig. 1 is existing vehicle speed variation transmission case drive system structure schematic representation;

Fig. 2 is the utility model automatic transmission case structural representation;

Fig. 3 is embodiment's 1 bicycle rear axle third gear automatic transimission kinematic scheme;

Fig. 4 is embodiment's 2 motorcycle rear axles nine shift automatic variable speed kinematic schemes.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Embodiment 1:

As shown in Figure 3, drive the gear ［ 21 ］ of right lateral star wheel series by wheel for inputting ［ 30 ］, then planet wheel ［ 22 ］ rotation, right lateral star wheel frame ［ 31 ］ revolution, because of being fixed on the stationary axle ［ 32 ］, do not change sun gear ［ 33 ］, main shaft and cross axle that right lateral star wheel frame ［ 31 ］ drives differentiator ［ 23 ］ rotate together, can produce three kinds of moving lines this moment: (a) differentiator ［ 23 ］ the right umbrella gear changes, left bevel gear does not change, then right umbrella gear drives ratchet free wheel device ［ 28 ］ with 2 times of rotating speeds to differentiator ［ 23 ］ cross axle and rotates, so external axle sleeve ［ 27 ］ rotates output; (b) the right umbrella gear of differentiator ［ 23 ］ does not change, left bevel gear rotates, then left bevel gear rotates with 2 times of revolutions to differentiator ［ 23 ］ cross axle, therefore left lateral star-wheel external toothing ［ 24 ］ rotates, through planet wheel ［ 25 ］ certainly then make left lateral star wheel frame ［ 34 ］ revolution (be fixed on axle ［ 32 ］ on do not change because of sun gear ［ 26 ］) drive left side ratchet free wheel device ［ 29 ］ to rotate, so external axle sleeve ［ 27 ］ rotates output; (c) differentiator ［ 23 ］ left and right sides umbrella gear and cross axle unitary rotation, because left lateral star-wheel reduction speed ratio is greater than the right lateral star wheel frame, ［ 29 ］ the ratchet free wheel device is surmounted and inoperative by ［ 28 ］ free wheel device, drive external axle sleeve ［ 27 ］ by ［ 28 ］ ratchet and rotate output, these three kinds of revolutions are respectively:

$n_a\mathrm{=2n}{}_{}\mathrm{/\; （1+}\frac{Z_{\mathrm{23}}}{Z_{\mathrm{21}}}）$

$n_b\mathrm{=2n}{}_{}\mathrm{/\; (1\; +}\frac{Z_{\mathrm{23}}}{Z_{\mathrm{21}}}\mathrm{)\; (1+}\frac{Z_{\mathrm{24}}}{Z_{\mathrm{26}}})$

$n_C\mathrm{=n}{}_{}\mathrm{(\; 1+}\frac{Z_{\mathrm{23}}}{Z_{\mathrm{21}}})$

Embodiment 2:

Motorcycle ［ 9 ］ shift automatic variable speed transmission device, as shown in Figure 4, drive differentiator ［ 41 ］ and rotate through gear ［ 44 ］, ［ 45 ］ by wheel for inputting ［ 40 ］, then differentiator ［ 41 ］ can produce three kinds of drive paths (i.e. three kinds of rotating speeds): (a) differentiator ［ 41 ］ the right umbrella gear does not change, left side umbrella gear rotates with 2 times of revolutions to differentiator ［ 41 ］ cross axle, drives differentiator ［ 42 ］ main shaft and cross axle rotation through gear ［ 46 ］, ［ 47 ］ and free wheel device ［ 35 ］; (b) the right umbrella gear of differentiator ［ 41 ］ rotates, left bevel gear is motionless, then right umbrella gear drives differentiator ［ 42 ］ main shaft and cross axle rotation with 2 times of rotations to differentiator ［ 41 ］ main shaft and cross axle through gear ［ 48 ］, ［ 49 ］ and free wheel device ［ 36 ］; (c) differentiator ［ 41 ］ left and right sides umbrella gear is with the cross axle unitary rotation, because left side gear ［ 46 ］, ［ 47 ］ reduction speed ratio are less than the right gear ［ 48 ］, ［ 49 ］ reduction speed ratio, it is inoperative so the right free wheel device ［ 36 ］ is surmounted by left side free wheel device ［ 35 ］, differentiator ［ 41 ］ transmitting gear ［ 46 ］, ［ 47 ］ and free wheel device ［ 35 ］ drive differentiator ［ 42 ］ main shaft and cross axle rotates, and these three kinds of rotating speeds are respectively:

$n_{\mathrm{42-a}}\mathrm{=\; 2n}{}_{}\mathrm{/\; (}\frac{Z_{\mathrm{45}}}{{\mathrm{<figure-callout\; id="44"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{44}}}·\frac{Z_{\mathrm{47}}}{Z_{\mathrm{46}}}{\mathrm{)\; =\; 2n}}_{}(\frac{{\mathrm{<figure-callout\; id="44"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{44}}{\mathrm{·\; Z}}_{\mathrm{46}}}{Z_{\mathrm{45}}{\mathrm{·Z}}_{\mathrm{47}}}{\mathrm{)\; =\; n}}_{}\frac{1}{i_1}$

$n_{\mathrm{42-b}}\mathrm{=\; 2n}{}_{}\mathrm{/(}\frac{Z_{\mathrm{45}}}{{\mathrm{<figure-callout\; id="44"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{44}}}·\frac{Z_{\mathrm{49}}}{Z_{\mathrm{28}}}\mathrm{)\; =\; 2n\; (}\frac{{\mathrm{<figure-callout\; id="44"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{44}}{\mathrm{·Z}}_{\mathrm{48}}}{Z_{\mathrm{45}}{\mathrm{·Z}}_{\mathrm{47}}}{\mathrm{)\; =\; n}}_{}\frac{1}{i_2}$

$n_{\mathrm{42-c}}\mathrm{=\; n}{}_{}\mathrm{/（}\frac{Z_{\mathrm{45}}}{{\mathrm{<figure-callout\; id="44"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{44}}}·\frac{Z_{\mathrm{47}}}{Z_{\mathrm{46}}}\mathrm{)\; =\; n\; (}\frac{{\mathrm{<figure-callout\; id="44"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{44}}{\mathrm{·\; Z}}_{\mathrm{46}}}{Z_{\mathrm{45}}{\mathrm{·\; Z}}_{\mathrm{47}}}{\mathrm{)\; =\; n}}_{}\frac{1}{i_3}$

N wherein _λBe the input shaft revolution;

Z is the number of teeth of each respective gears.

In like manner, differentiator ［ 42 ］ to the drive path of differentiator ［ 43 ］ also has three, that is:

(a ') differentiator ［ 42 ］ left bevel gear does not change, right umbrella gear driven gear ［ 54 ］ rotates with 2 times of revolutions to differentiator ［ 42 ］ cross axle, drive differentiator ［ 43 ］ main shaft and cross axle rotation through third wheel ［ 39 ］, gear ［ 55 ］, because differentiator ［ 42 ］ left side umbrella gear does not change, then gear ［ 53 ］ and differentiator ［ 43 ］ left bevel gear do not change yet, differentiator ［ 43 ］ the right umbrella gear and gear ［ 56 ］ rotate with the revolution of 2 times of differentiator ［ 43 ］ cross axles, and driven gear ［ 37 ］ rotates output;

The right umbrella gear of (b ') differentiator ［ 42 ］ does not change, the a left side normal wheeling driving gear of umbrella ［ 50 ］ rotates with 2 times of revolutions to differentiator ［ 42 ］ cross axle, gear ［ 53 ］ links to each other with differentiator ［ 43 ］ left side umbrella gear, because differentiator ［ 42 ］ the right umbrella gear does not change, so differentiator ［ 43 ］ main shaft and cross axle do not change yet, so differentiator ［ 43 ］ the right umbrella gear and gear ［ 55 ］ do not change yet.Gear ［ 50 ］ rotates and makes gear ［ 53 ］ backward rotation through gear ［ 51 ］, ［ 52 ］ third wheel ［ 38 ］, drives gear ring ［ 37 ］ and rotates output;

(c ') differentiator ［ 42 ］ left and right sides umbrella gear and cross axle unitary rotation, then move by the revolution of around side umbrella gear with 1:1, drive differentiator ［ 43 ］ left side umbrella gear and cross axle respectively rotates through gear ［ 50 ］, ［ 51 ］, ［ 52 ］, ［ 38 ］, ［ 53 ］ and gear ［ 54 ］, ［ 39 ］, ［ 55 ］, so differentiator ［ 43 ］ the right umbrella gear rotates with the revolution of gear ［ 56 ］ with the algebraic sum of left side umbrella gear and cross axle revolution, drives gear ring ［ 37 ］ and rotates output.

These three kinds of output revolutions are respectively:

$n_{\mathrm{a＇}}\mathrm{=\; n}{}_{\mathrm{42}}\mathrm{\times 2\times 2(}\frac{{\mathrm{<figure-callout\; id="54"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{54}}{\mathrm{·Z}}_{\mathrm{39}}{\mathrm{·Z}}_{\mathrm{56}}}{Z_{\mathrm{39}}{\mathrm{·Z}}_{\mathrm{55}}{\mathrm{·Z}}_{\mathrm{39}}}{\mathrm{)\; =\; n}}_{\mathrm{42}}\frac{1}{i_4}$

$n_{\mathrm{b＇}}\mathrm{=\; n}{}_{\mathrm{42}}\mathrm{\times 2(}\frac{Z_{\mathrm{50}}{\mathrm{·Z}}_{\mathrm{52}}{\mathrm{·Z}}_{\mathrm{38}}{\mathrm{·Z}}_{\mathrm{56}}}{Z_{\mathrm{51}}{\mathrm{·Z}}_{\mathrm{38}}{\mathrm{·Z}}_{\mathrm{53}}{\mathrm{·Z}}_{\mathrm{37}}}{\mathrm{)\; =\; n}}_{\mathrm{42}}\frac{1}{i_5}$

$n_{\mathrm{c＇}}\mathrm{=n}{}_{\mathrm{42}}\mathrm{\times 2(2}\frac{Z_{\mathrm{54}}}{{\mathrm{<figure-callout\; id="39"\; label="Z"\; filenames="942017471\_DRIMG2.png"\; state="\{\{state\}\}">Z</figure-callout>}}_{\mathrm{39}}}·\frac{Z_{\mathrm{39}}}{Z_{\mathrm{55}}}+\frac{Z_{\mathrm{50}}}{Z_{\mathrm{51}}}·\frac{Z_{\mathrm{52}}{\mathrm{·\; Z}}_{\mathrm{38}}}{Z_{\mathrm{38}}{\mathrm{·Z}}_{\mathrm{51}}}{\mathrm{)\; =\; n}}_{\mathrm{42}}\frac{1}{i_6}$

Connect combination by above two kinds of groups three and can produce 9 kinds of revolutions, that is:

$n_1\mathrm{=\; n}{}_{}\frac{1}{i_1}·\frac{1}{i_4}{\mathrm{;\; n}}_2\mathrm{=\; n}{}_{}\frac{1}{i_1}·\frac{1}{i_5}{\mathrm{;\; n}}_3\mathrm{=\; n}{}_{}\frac{1}{i_1}·\frac{1}{i_6}$

$n_4\mathrm{=\; n}{}_{}\frac{1}{i_2}·\frac{1}{i_4}{\mathrm{;\; n}}_5\mathrm{=\; n}{}_{}\frac{1}{i_2}·\frac{1}{i_5}{\mathrm{;\; n}}_6\mathrm{=\; n}{}_{}\frac{1}{i_2}·\frac{1}{i_6}$

$n_7\mathrm{=\; n}{}_{}\frac{1}{i_3}·\frac{1}{i_4}{\mathrm{;\; n}}_8\mathrm{=\; n}{}_{}\frac{1}{i_3}·\frac{1}{i_5}{\mathrm{;\; n}}_9\mathrm{=\; n}{}_{}\frac{1}{i_3}·\frac{1}{i_6}$

Change the output sleeve in the present embodiment ［ 37 ］ gear ring into output gear, then the present embodiment structure also can be used for the vehicle automatic transmission device.

The utility model is owing to alleviated the programmed sequence of operations of driver, alleviate the mental burden of driver and reduced its skilled operation degree, so it is practical more to home-use car, this device is installed on the automobile, it is few to increase expense, provide the condition that makes things convenient for to the driver, the selling market of automobile is enlarged, general home-usely can accept per family.

Claims (2)

1, vehicle differential gear train automatic transmission case, by some axles, differentiator and gear are formed, it is characterized in that the input shaft [19] and the main shaft of differentiator [11] are the same axises, be separately installed with gear [13] and [15] in differentiator [11] the main shaft left and right sides, gear [13] and [15] respectively at axle [10] cog [14] and [16] be meshed, gear [14] is fixed on the axle [10], on the axle [10] gear [14] is installed successively from left to right, [16], differentiator [12] and gear [17], gear [17] and axle [20] are gear [18] engagement on the output shaft, gear [18] is fixed on the axle [20], still can gear and differentiator be installed on the output shaft [20] according to the arranging structure on the axle [10], and with the respective gears engagement of axle [10].

2, vehicle according to claim 1 differential gear train automatic transmission case is characterized in that can increasing third wheel ［ 9 ］ between gear ［ 13 ］ and the gear ［ 15 ］.

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