CN1017825B - Stepless speed variator for cycloidal pin gear - Google Patents
Stepless speed variator for cycloidal pin gearInfo
- Publication number
- CN1017825B CN1017825B CN 90102527 CN90102527A CN1017825B CN 1017825 B CN1017825 B CN 1017825B CN 90102527 CN90102527 CN 90102527 CN 90102527 A CN90102527 A CN 90102527A CN 1017825 B CN1017825 B CN 1017825B
- Authority
- CN
- China
- Prior art keywords
- pin
- cycloidal
- worm gear
- actuating motor
- power source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Structure Of Transmissions (AREA)
Abstract
The present invention relates to a stepless speed changer which utilizes a servo motor (3) as a secondary power source and is composed of the servo motor (3), a worm gear pair and a cycloidal pin gear mechanism. A primary power source transmits torque to an output shaft (5) through an input shaft (10), a cycloidal gear (9) and a pin tooth ring (8), and thus, the stepless speed changer has the characteristics of high transmission efficiency of the cycloidal pin gear mechanism and simple structure. The servo motor drives the worm gear pair and the pin gear ring (8) to rotate to change the rotary speed of the output shaft finally, and thus, the present invention has the characteristics of high speed regulation precision, wide speed regulation range and convenient control.
Description
The present invention is to be the stepless speed variator of second power source with actuating motor.
Only there is the mechanical continuously-variable transmission major part of a power source to realize stepless change with friction driving, so efficient is low, slewing range is little, adjusting speed accuracy is poor, complex structure, and adopt the direct current generator source that is used as power, and to mix retarder and make it to become stepless speed changes devices, price is very expensive.
German Democratic Republic patent DD244607-1987.4.8 has proposed to make second power source with actuating motor, thereby change the rotating speed of output shaft with the rotating speed that the rotating speed that changes actuating motor changes planetary carrier, become the stepless speed variator that main power source, plane table thermoconductivity meter, actuating motor combine.Accompanying drawing 1 is the schematic diagram of this invention, and input shaft (1) links to each other with main power source, and worm gear pairs (2) links to each other with actuating motor, and the rotating speed that actuating motor changes planetary carrier (3) changes the rotating speed of output shaft (4) thereupon.Because this planetary gears belongs to the 2Z-X positive sign mechanism of duplex outer gearing, boundary dimension is big, and transmission efficiency is low, is not suitable for the transmission that is used as power, so this invention using scope is restricted.
Task of the present invention provides a kind ofly makes the main power source transmitted power with AC motor or other power sources, carries out speed governing with low power actuating motor as second power source, makes the cycloidal-pin wheel retarder become stepless speed variator for cycloidal pin gear.The cycloidal-pin wheel retarder itself has compact structure, volume is little, transmission efficiency height advantages such as (reaching 90%～95%), being used for the actuating motor of speed governing needn't bear the function of transmitting torque, as long as the rotating speed of control output shaft, so can select low power actuating motor, cost of the present invention is reduced greatly.
It is a kind of common retarder that power source drives the cycloidal-pin wheel retarder, transmission efficiency high and simple in structure be its advantage, even in the present invention it is added an actuating motor and worm gear pairs, structure is still simpler, but it was one and can controls automatically this moment, adjusted the precision height, slewing range is big, the stepless speed variator that transmission efficiency is high, its output speed and torque can be satisfied the needs of machinery widely.
Technological scheme of the present invention is to load onto worm gear on the pin gear ring of cycloidal-pin wheel retarder, actuating motor and worm screw connect, when actuating motor does not change, the performance of this device is the same with the cycloidal-pin wheel retarder, when actuating motor rotates, worm gear pairs also rotates, the rotation of worm gear pairs is rotated the pin gear ring, the pin gear ring rotates the rotating speed of output shaft is changed, when changing the actuating motor rotating speed, output shaft changes rotating speed accordingly, when the power flow direction of main power source was passed to worm screw by the pinwheel circle, the worm gear pairs self-locking did not influence actuating motor, so the transmitted power of main power source and cycloidal-pin wheel mechanism has determined transmitted power of the present invention, the adjusting speed accuracy of actuating motor is determining adjusting speed accuracy of the present invention.
The technical program has realized providing torque by main power source and cycloidal-pin wheel mechanism, and actuating motor finally makes output shaft accurately export required rotating speed efficiently by the rotation of worm gear pairs and pinwheel circle, has finished the invention task.
Narrate technological scheme of the present invention below in conjunction with accompanying drawing.
Accompanying drawing 2, accompanying drawing 3 are outline drawings of the present invention, by main power source (1), and end cap (2), actuating motor (3), output terminal shell (4), output shaft (5), fuselage (6) is formed.
Accompanying drawing 4 is schematic diagrams of the present invention, main power source (1) rotates input shaft (10) by direct connection or other kinds of drive, input shaft (10) and cycloid wheel (9), pin gear ring (8), output shaft (5), bearing pin (11) are the major parts of cycloidal-pin wheel mechanism, this specification is no longer narrated its principle, drive worm screw (7) and highlight actuating motor (3), worm screw (7) drives worm gear (12), and worm gear (12) drives the velocity variations situation of pin gear ring (8) with rear output shaft (5).The rotating speed of the rotating speed of output shaft (5) and actuating motor (3) can be obtained from following formula:
n＝（n
2×Z
2-n
1×i
1）+（i
1×Z
1）
The rotating speed of n-output shaft (5)
n
1The rotating speed of-input shaft (10)
n
2The rotating speed of-actuating motor (3)
Z
1-cycloidal cam number
Z
2-pin the number of teeth
i
1The velocity ratio of-worm gear pairs
If actuating motor (3) makes turning to of worm gear pairs consistent with input shaft, n
2Get on the occasion of, otherwise get negative value, can be according to the velocity ratio i of the required velocity range of user decision worm gear pairs
1, also can increase annexes such as mono-directional overrun clutch according to the concrete condition of work mechanism.
The output torque of output shaft of the present invention, the stressing conditions of cycloidal-pin wheel mechanism is all identical with general cycloidal-pin wheel mechanism, but control the rotating speed of actuating motor (3) and make output shaft (5) obtain large-scale desirable speed ratio, and the actuating motor price is low, control is convenient, thereby demonstrates meaning of the present invention.
Claims (1)
1, a kind of stepless speed variator, form by actuating motor (3), worm gear pairs and cycloidal-pin wheel mechanism, it is characterized in that the last design of pin gear ring (8) has worm gear (12), worm gear (12) and worm screw (7) are formed worm gear pairs, actuating motor (3) drives worm gear pairs and pin gear ring (8) rotates, pin gear ring (8) bears power source simultaneously by the active force that input shaft (10) and cycloid wheel (9) transmit, and this active force is spread out of by output shaft (5) by bearing pin (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102527 CN1017825B (en) | 1990-04-28 | 1990-04-28 | Stepless speed variator for cycloidal pin gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102527 CN1017825B (en) | 1990-04-28 | 1990-04-28 | Stepless speed variator for cycloidal pin gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1056343A CN1056343A (en) | 1991-11-20 |
| CN1017825B true CN1017825B (en) | 1992-08-12 |
Family
ID=4877564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102527 Expired CN1017825B (en) | 1990-04-28 | 1990-04-28 | Stepless speed variator for cycloidal pin gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017825B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206491A (en) * | 2013-04-18 | 2013-07-17 | 新疆金风科技股份有限公司 | Speed reducer |
| CN109282008A (en) * | 2018-11-26 | 2019-01-29 | 力源液压（苏州）有限公司 | Tractor and its gear-box |
-
1990
- 1990-04-28 CN CN 90102527 patent/CN1017825B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1056343A (en) | 1991-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |