CN1067719A - Roller ring gear conjugation transmission speed reducer - Google Patents

Abstract

A kind of by shock wave device, fixed gear, the roller ring gear conjugation transmission speed reducer that free gear is formed, conjugate curve are set on fixed gear, on free gear, settle cylinder group (or ball group) rolling element as drive engaging set, owing to adopt the conjugate curve engagement driving, so stable working during transmission, noise is little, the transmission efficiency height can reach 90%, and this speed reducer volume is little, can be used for the heavy load transmission, long service life.

Description

Roller ring gear conjugation transmission speed reducer

The present invention relates to transmission decelerating device.

Be used at present that it is simple in structure with the oscillating tooth pin gear speed reducer of shaft drive, volume is little, has obtained certain application on producing, the structural representation of oscillating tooth pin gear speed reducer such as Fig. 1, mainly contain shock wave device (1), Tooth wheel with changeable teeth (2), fixed gear (3) is formed.Shock wave device (1) is that coil in a garden with Tooth wheel with changeable teeth (2), the eccentric installation of fixed gear (3).Tooth wheel with changeable teeth (2) is a garden dish, is provided with several garden week along the garden dish and can coils the pin tooth (4) that warp-wise moves along the garden.Fixed gear (3) is a garden ring, is provided with several garden posts (5) garden week along the garden ring.Shock wave device during work (1) is pressed the rotation of direction shown in the arrow among the figure, the pin tooth (4) of promptly oppressing in garden week of shock wave device this moment (1) glides along garden post (5), driving Tooth wheel with changeable teeth (2) work one simultaneously rotatablely moves, this moment, other each pins also rotated certain distance accordingly, made pin tooth (6) be in the residing location status of beginning hour hands teeth (4).When shock wave device (1) continued rotation, pin tooth (6) glided along garden post (7), drove Tooth wheel with changeable teeth work one again and rotatablely moved.Carry out so continuously, when shock wave device (1) when rotating a circle, Tooth wheel with changeable teeth (2) promptly rotates the distance of a garden intercolumniation, reaches the purpose of deceleration.But this speed reducer is because the line style of flank profil is to replace curve with straight line, so transmission capacity is low, transmission accuracy is poor, and noise is big, the life-span is short.

The objective of the invention is to design a kind of transmission accuracy height, noise is little, the coaxial transmission speed reducer of long service life.

The object of the present invention is achieved like this:

Speed reducer is made up of shock wave device, fixed gear, free gear three parts.Reach the rolling element that rolls with conjugate curve on this curve and pay as the transmission engagement, conjugate curve are arranged on the fixed gear, and several garden post groups (or garden pearl group) are placed on the free gear.Garden post group (or garden pearl group) and conjugate line engagement, and its contacting point is the line contact, motion is steadily in transmission process.Shock wave device links to each other with input shaft, and movable wheel links to each other with output shaft, and the quantity of the wave number of conjugate curve and garden post group (or garden pearl group) is unequal, so when shock wave device rotated a circle, the free gear rotation reached the deceleration purpose less than the distance in a week.In transmission process, there are several garden post groups (or garden pearl group) contact simultaneously, so can alleviate the load of each garden post group (or the garden pearl is organized), prolongation speed reducer working life with conjugate line.

Illustrate that accompanying drawing is as follows:

Fig. 1 is a movable pin gear deceleration machine schematic diagram.

Fig. 2 is the A-A sectional view of Fig. 1

Fig. 3 is the present invention's ring gear conjugation transmission speed reducer schematic diagram that rolls

Fig. 4 is the B-B sectional view of Fig. 3

Fig. 5 is speed reducer conjugate curve coordinate figure of the present invention

Accompanying drawings embodiment and working principle are as follows:

Roller ring gear conjugation transmission speed reducer of the present invention is by fixed gear (8), free gear (9), and shock wave device (10) is formed.Conjugate curve (11) are arranged on fixed gear (8), be arranged with some garden post groups (12) (or garden pearl group) free gear (9) garden, upper edge week, each garden post group (12) can be made up of several gardens post (or garden pearl), garden post (or garden pearl) can freely turn round also and can slide along warp-wise in free gear (10) groove, free gear is installed in the fixed gear, and its garden post (or garden pearl) can contact with conjugate line, shock wave device (10) links to each other with input shaft, and free gear links to each other with output shaft.

Roller ring gear conjugation transmission speed reducer working procedure of the present invention is as follows:

Shock wave device (10) links to each other with input shaft, free gear (9) links to each other with output shaft, when shock wave device (10) rotates by the diagram direction of arrow, shock wave device (10) compressing garden column assembly (13) forces this garden post group to drive whole free gear and moves a certain distance to direction shown in the arrow along conjugate line.Shock wave device continuation rotation is then oppressed garden post group (12) and is moved along conjugate line, and drive the free gear continuation to the rotation of direction shown in arrow certain distance, shock wave device continues rotation, then free gear also continues to rotate in the direction of arrows, shock wave device (10) returns the then wave distance of free gear rotation that circles, and reaches the deceleration purpose.

The conjugate curve of free gear can be tried to achieve (in conjunction with Fig. 4, Fig. 5) by following formula.

The X point coordinates is X in the conjugate curve, Y,

X＝ (E)/2 ·SsinΦ+ (M·R·|sinα|)/(|M|)

Y＝ (E)/2 ·ScosΦ- (N·R·|cosα|)/(|N|)

In the formula: E is garden, post center, an outer garden diameter

R is the garden column radius

Φ be 0 °～360 ° Φ for the tangent line of conjugate curve is made vertical line at the X point, on vertical line, get the line segment that a length is garden column radius R to garden heart direction, 0 is Φ (Fig. 5) with the line of this line segment and the angle of Y-axis.

S＝Cos[arcSin（ (2e)/(E) ·sin（i±1）Φ）]+ (2e)/(E) cos（i±1）Φ

Wherein, e is the offset of shock wave device

I is in the velocity ratio (i ± 1), is incorgruous transmission when getting "+" value, is transmission in the same way when getting " one " value.

M＝T·cosΦ+S·sinΦ

N＝T·sinΦ-S·cosΦ

Wherein:

$\mathrm{T=(i\; \pm 1)\; ·}\frac{\mathrm{2e}}{E}\mathrm{si\; n\; (i\; \pm 1)\; \Phi \; +}\frac{{\mathrm{(i\; \pm 1)·(2e/E)}}^2\mathrm{sin(i\; \pm 1)\Phi \; cos(i\; \pm 1)}}{\sqrt{{\mathrm{1-［2\; e\; /\; E\; ·\; s\; i\; n(i\; \pm 1)\Phi \; ］}}^2}}$

α＝arc tan（M/N）

As M=0 x=SSin Φ E/2

y＝S·cosΦ·E/2-N·R/|N|

As N=0 x=Ssin Φ E/2+MR/|M|

y＝S·cosΦ·E/2

Compared with prior art volume is little for roller ring gear conjugation transmission speed reducer of the present invention, parts are few in addition, cycloid pin gear speed reducer about 30 of all special-purpose parts in addition except that standard piece, and speed reducer of the present invention has only about 10, so because the little efficient height of noise when taking the transmission of the conjugation kind of drive can be not less than 90%.

Claims (3)

1, a kind of have a shock wave device, fixed gear, the rolling ring gear conjugation transmission speed reducer that free gear is formed, it is characterized in that paying as the transmission engagement with the rolling element of conjugate curve and rolling thereon, conjugate curve are arranged on the fixed gear, rolling element is placed on the free gear, and shock wave device links to each other with input shaft, and free gear links to each other with output shaft.

2,, it is characterized in that said rolling element is the garden column assembly according to the said speed reducer of claim 1.

3,, it is characterized in that said rolling element is a garden pearl part according to the said speed reducer of claim 1.

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