CN101555931B - Precise drive differential-type isolating device in reverse motion - Google Patents
Precise drive differential-type isolating device in reverse motion Download PDFInfo
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- CN101555931B CN101555931B CN2009101038950A CN200910103895A CN101555931B CN 101555931 B CN101555931 B CN 101555931B CN 2009101038950 A CN2009101038950 A CN 2009101038950A CN 200910103895 A CN200910103895 A CN 200910103895A CN 101555931 B CN101555931 B CN 101555931B
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Abstract
The invention discloses a precise drive differential-type isolating device in reverse motion. A level I and a level II are arranged in a power input sheath along the axial direction. A drive pin penetrates through the power input sheath, the level I and the level II along radial direction. The drive pin is used as a fulcrum of the level I and the level II and leads the level I and the level II tobe fixedly matched with the power input sheath in circumferential direction. The dynamic points of the level I and the level II are arranged on and fixedly matched with the radial opposite sides of adynamic output shaft I in circumferential direction. The resistance points of the level I and the level II are arranged on and fixedly matched with the radial opposite sides of a dynamic output shaftII in circumferential direction. A balance shaft are matched with the dynamic output shaft I and the dynamic output shaft II through a gear pair I and a gear pair II which has the same transmission ratio. The invention can isolate reverse disturbance motion from positive function motion, and can realize passive autobalance in the balance shaft of another system, eliminates the disturbance to positive function motion, and has strong adaptability to additional disturbance, and also has fast response time. The system is in a self-locking condition all the time; the backlash can be reduced; the service life is long; the maintenance is simple and convenient; the structure is simple; and the manufacturability is good.
Description
Technical field
The present invention relates to a kind of high-accuracy mechanical transmission device, is a kind of precise drive differential-type isolating device in reverse motion.
Background technique
Gear transmission is used to transmit motion and the power between the diaxon, compares with other mechanical transmission, and gear has advantages such as compact structure, running is steady, noise is less, therefore is widely used in various machines and the instrument.
And transmission system exists from the additional square outside the system and disturbs in transmission process, and existing structure can't overcome the interference outside the system, when the additional moment in an external world imposes on the output terminal of system, will destroy the motor pattern and the kinematic accuracy of system.Precision transmission system requires that strict motor pattern and kinematic accuracy are arranged in the high-tech art field, and require it that big bearing capacity is arranged, and this transmission system place equipment is in comparing rugged environment, the operating load fluctuation is big, form an additional disturbance torque, reverse being added on the transmission system, thus the motor pattern and the kinematic accuracy of destruction transmission system can not reach the equipment preset function.。
Therefore, need a kind of precision drive isolation mounting, disturbed motion is separated with functional movement, further eliminated, guaranteed that transmission system is strict with default motor pattern and kinematic accuracy operation, had big bearing capacity, higher precision, and have self-lock ability and reduce the ability of return difference.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of precise drive differential-type isolating device in reverse motion, in view of this, the purpose of this invention is to provide a kind of precise drive differential-type isolating device in reverse motion, have strict motor pattern and kinematic accuracy, and big bearing capacity is arranged, can overcome the interference of extraneous factors such as environment, have higher precision, have self-locking and reduce the ability of return difference.
Precise drive differential-type isolating device in reverse motion of the present invention, comprise power input cover, pto I, pto II, trunnion shaft, driving pin, lever I and lever II, described lever I and lever II are arranged in the power input cover vertically, described driving pin radially passes power input cover, lever I and lever II, as the fulcrum of lever I and lever II and make lever I and lever II and power input are enclosed within the circumferencial direction secure fit, the both sides that the power point apportion pto I of the power point of described lever I and lever II is radially relative and with its in the circumferencial direction secure fit, the both sides that the resistance point apportion pto II of the resistance point of lever I and lever II is radially relative and with its in the circumferencial direction secure fit;
Trunnion shaft cooperates with pto I by secondary I of gear engagement, cooperates with pto II by secondary II of gear engagement, and secondary I of gear engagement is identical with secondary II of gear engagement velocity ratio.
Further, be rotatably assorted by packing ring between described lever I and the lever II;
Further, pto I and pto II two end part all are provided with the radial opening groove, described lever I and lever II two ends be embedded in respectively in the radial opening groove of pto I and pto II with its in the circumferencial direction secure fit;
Further, the two ends of lever I and lever II are embedded in the radial opening groove of pto I and pto II by a slide block respectively;
Further, lever I and lever II cooperate with ball bearing of flexible mistake in the slide block respectively;
Further, be rotatably assorted by the transmission sliding sleeve between described driving pin and lever I and the lever II;
Further, described power input cover extends respectively to two ends that Spielpassung is enclosed within pto I and pto II cylindrical;
Further, described power input is enclosed within the circumferencial direction secure fit power input gear is set.
The invention has the beneficial effects as follows: precise drive differential-type isolating device in reverse motion of the present invention, adopt differential transmission mechanism and lever balance structure, when system is subjected to the reverse disturbance of applied moment, equal and opposite in direction of generation that can be in good time, the opposite moment of direction is to offset this applied moment, thereby reach balance in internal system, realize the nonreversibility of transmission system, reverse disturbed motion and positive function motion isolation can be opened, and make its passive autobalance in the trunnion shaft of another system, eliminate its interference to the forward functional movement, make the positive function motion have strict motor pattern and kinematic accuracy, and big bearing capacity is arranged, can overcome the interference of factors such as environment, have the ability of self-lock ability and elimination return difference, thereby the raising transmission efficiency reduces vibration and noise; Disturbed motion of this device and main movement are with the differential form combination, thereby both both compatible and don't interference mutually, have very strong adaptivity, and the response time is fast, the precision height; The present invention adopts passive pure mechanical device, thereby long service life, and keeps in repair easyly, is in self-locking state (or claim normally off) all the time, and simple in structure, good manufacturability is easy to seriation and production in enormous quantities.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a structural representation of the present invention;
Fig. 2 be Fig. 1 along A-A to schematic representation.
Embodiment
Fig. 1 is a structural representation of the present invention, Fig. 2 be Fig. 1 along A-A to schematic representation, as shown in the figure: the precise drive differential-type isolating device in reverse motion of present embodiment, comprise power input cover 10, pto I1, pto II8, trunnion shaft 11, driving pin 5, lever I2 and lever II3, described lever I2 and lever II3 are arranged in the power input cover 10 vertically, described driving pin 5 radially passes power input cover 10, lever I2 and lever II3, as the fulcrum of lever I2 and lever II3 and make lever I2 and lever II3 and power input cover 10 in the circumferencial direction secure fit, the both sides that the power point apportion pto I1 of the power point of described lever I2 and lever II3 is radially relative and with its in the circumferencial direction secure fit, the both sides that the resistance point apportion pto II8 of the resistance point of lever I2 and lever II3 is radially relative and with its in the circumferencial direction secure fit; Trunnion shaft 11 cooperates with pto I1 by secondary I13 of gear engagement, cooperates with pto II8 by secondary II9 of gear engagement, and secondary I13 of gear engagement is identical with secondary II9 of gear engagement velocity ratio.
In the present embodiment, be rotatably assorted by packing ring 6 between described lever I2 and the lever II3, control lever I2 and lever II3 spatial position prevent to interfere with each other when action between lever I2 and the lever II3, guarantee the accuracy of reverse resisting moment, also can accelerate the response time.
In the present embodiment, pto I1 and pto II8 two end part all are provided with the radial opening groove, described lever I2 and lever II3 two ends be embedded in respectively in the radial opening groove of pto I1 and pto II8 with its in the circumferencial direction secure fit;
In the present embodiment, the two ends of lever I2 and lever II3 are embedded in the radial opening groove of pto I1 and pto II8 by a slide block 7 respectively, and 4 slide blocks 7 of just common mistake cooperate; Reduce friction, guaranteeing in the circumferencial direction transmission, do not limit lever I2 and the horizontal degrees of freedom of lever II3, guarantee the flexibility of transmission, be beneficial to the realization damping function.
In the present embodiment, circle cooperates by a ball bearing 14 respectively in lever I2 and lever II3 and separately the slide block 7; Further reduce friction, lever can be swung around driving pin, guarantee that the flexibility and the system of transmission has higher precision.
In the present embodiment, be rotatably assorted by transmission sliding sleeve 4 between described driving pin 5 and lever I2 and the lever II3, adopt transmission sliding sleeve 4 and driving pin 5 structures, be beneficial to transmission and be beneficial to whole Unit Installation and stablize with keeping, reduce the action resistance of lever I2 and lever II3, guarantee the accuracy of transmission.
In the present embodiment, described power input cover 10 extends respectively to two ends that Spielpassung is enclosed within pto I1 and pto II8 cylindrical, makes power input cover 10 that supporting be arranged, and also is beneficial to and guarantees the complete compactness of the whole mechanism of isolation mounting.
In the present embodiment, described power input cover 10 is provided with power input gear 12 in the circumferencial direction secure fit, and power input gear 12 and power input cover 10 are made one, make simple and convenient, highly versatile.
During work, the concrete kind of drive of the present invention is: power input gear 12 → power input cover 10 → driving pin, 5 → lever I2 and lever II3 → pto I1 and pto II8 → output also drive trunnion shaft 11 rotations, be applied on the pto I1 as a disturbance torque, can make transmission system produce additional motion, thereby destroyed the characteristics of motion that system sets originally, at this moment, additional movement will be rotated around fulcrum by the power point of pto I1 promotion lever I2 and lever II3, and the resistance point of lever I2 and lever II3 drives pto II8 and carries out the direction rotation opposite with additional moment.
Simultaneously, disturbed motion is passed to trunnion shaft 11 by the secondary I13 of gear engagement between pto I1 and the trunnion shaft 11, the opposing torque that pto II8 produces is passed to trunnion shaft 11 by secondary II9 of gear engagement, therefore, when pto I1 of the present invention is additional when disturbed motion (being disturbance torque) is arranged, the effect of the lever system of being formed by lever I2 and lever II3, equal and opposite in direction of generation that an II8 that outputs power is in good time, the balance exercise that direction is opposite (being resisting moment), and cancel out each other at trunnion shaft, and can not pass to the other parts of system, eliminate its interference to the forward functional movement.When positive movement is zero when reverse moment input is arranged, backward motion only can be delivered to self balancing in the trunnion shaft and can not make the input cover produce reverse motion, Here it is self-lock ability of the present invention.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (7)
1. precise drive differential-type isolating device in reverse motion, it is characterized in that: comprise power input cover, pto I, pto II, trunnion shaft, driving pin, lever I and lever II, described lever I and lever II are arranged in the power input cover vertically, described driving pin radially passes power input cover, lever I and lever II, as the fulcrum of lever I and lever II and make lever I and lever II and power input are enclosed within the circumferencial direction secure fit, the both sides that the power point apportion pto I of the power point of described lever I and lever II is radially relative and with its in the circumferencial direction secure fit, the both sides that the resistance point apportion pto II of the resistance point of lever I and lever II is radially relative and with its in the circumferencial direction secure fit;
Trunnion shaft cooperates with pto I by secondary I of gear engagement, cooperates with pto II by secondary II of gear engagement, and secondary I of gear engagement is identical with secondary II of gear engagement velocity ratio.
2. precise drive differential-type isolating device in reverse motion according to claim 1, it is characterized in that: pto I and pto II two end part all are provided with the radial opening groove, described lever I and lever II two ends be embedded in respectively in the radial opening groove of pto I and pto II with its in the circumferencial direction secure fit.
3. precise drive differential-type isolating device in reverse motion according to claim 2 is characterized in that: the two ends of lever I and lever II are embedded in the radial opening groove of pto I and pto II by a slide block respectively.
4. precise drive differential-type isolating device in reverse motion according to claim 3 is characterized in that: lever I and lever II cooperate with ball bearing of flexible mistake in the slide block respectively.
5. precise drive differential-type isolating device in reverse motion according to claim 4 is characterized in that: be rotatably assorted by the transmission sliding sleeve between described driving pin and lever I and the lever II.
6. precise drive differential-type isolating device in reverse motion according to claim 5 is characterized in that: described power input cover extends respectively to two ends that Spielpassung is enclosed within pto I and pto II cylindrical.
7. precise drive differential-type isolating device in reverse motion according to claim 6 is characterized in that: described power input is enclosed within the circumferencial direction secure fit power input gear is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101038950A CN101555931B (en) | 2009-05-20 | 2009-05-20 | Precise drive differential-type isolating device in reverse motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101038950A CN101555931B (en) | 2009-05-20 | 2009-05-20 | Precise drive differential-type isolating device in reverse motion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101555931A CN101555931A (en) | 2009-10-14 |
| CN101555931B true CN101555931B (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101038950A Expired - Fee Related CN101555931B (en) | 2009-05-20 | 2009-05-20 | Precise drive differential-type isolating device in reverse motion |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994018475A1 (en) * | 1993-02-12 | 1994-08-18 | Ricardo Consulting Engineers Limited | Differential drive mechanism |
| US5435210A (en) * | 1993-02-12 | 1995-07-25 | Ricardo Consulting Engineers Limited | Differential drive mechanisms |
| WO1996012124A1 (en) * | 1994-10-14 | 1996-04-25 | Ricardo Consulting Engineers Limited | Differential drive mechanisms |
-
2009
- 2009-05-20 CN CN2009101038950A patent/CN101555931B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994018475A1 (en) * | 1993-02-12 | 1994-08-18 | Ricardo Consulting Engineers Limited | Differential drive mechanism |
| US5435210A (en) * | 1993-02-12 | 1995-07-25 | Ricardo Consulting Engineers Limited | Differential drive mechanisms |
| WO1996012124A1 (en) * | 1994-10-14 | 1996-04-25 | Ricardo Consulting Engineers Limited | Differential drive mechanisms |
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| Publication number | Publication date |
|---|---|
| CN101555931A (en) | 2009-10-14 |
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Granted publication date: 20110706 Termination date: 20140520 |