CN201096174Y - Electronic numerical control stepless transmission arrangement - Google Patents
Electronic numerical control stepless transmission arrangement Download PDFInfo
- Publication number
- CN201096174Y CN201096174Y CNU2007200328505U CN200720032850U CN201096174Y CN 201096174 Y CN201096174 Y CN 201096174Y CN U2007200328505 U CNU2007200328505 U CN U2007200328505U CN 200720032850 U CN200720032850 U CN 200720032850U CN 201096174 Y CN201096174 Y CN 201096174Y
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- input end
- stepless
- prime mover
- planetary gear
- gear train
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Abstract
The utility model relates to an electronic numerical control stepless speed change device which is composed of a prime mover, a computer, a controlled motor, a retarding mechanism, a stepless speed change mechanism, a planetary gear train and a tie rod. A internal geared ring of the planetary gear train and a sun gear drive a planet gear to rotate, an output shaft of the prime mover is fixedly connected with an input end of the stepless speed change mechanism and an input end of the sun gear of the planetary gear train simultaneously, and a stepless bevel gear of the stepless speed change mechanism is connected with a planet bevel gear of the planetary gear train by a bevel idle gear in a drive way. The planet gear and the tie rod are connected coaxially, the front end of the tie rod is fixedly connected with an input shaft of a load machine, and an information feedback line of the load machine is connected to a load signal input end of the computer, a prime mover information feedback line and a speed governing control line of the computer are respectively connected with a feedback signal input end of the prime mover and a speed governing signal input end of the controlled motor. The electronic numerical control stepless speed change device has the advantages that the structure is compact, the use is convenient, the manufacture cost is low, automatic control is beneficial, the speed can be adjusted at any time according to the process requirements, etc.
Description
Technical field
The utility model content belongs to mechanical engineering component technology field, and relating to a kind of is the electronics numerically controlled stepless transmission of basic structure with planetary gear train and stepless speed changing mechanism.
Background technique
Existing both at home and abroad various stepless or the output shaft of speed changer that level arranged is according to designing requirement, the restriction of a minimum speed and maximum speed is all arranged, the power of input uninterruptedly, do not lose and speed changer under all gears situation about not breaking away from, also do not have a kind of minimum speed of speed changer can reach zero rotating speed.And in the actual use of speed changer, big to ten to tens kilometers mine transmission system or tens kilometers crude oil pipeline system, engineering machinery systems such as little medicine, chemical industry, agricultural, transportation to on-load, all exist the key issue how a motility mechanical starts, adjusts, be to have equipped mechanisms such as various mechanical clutches or fluid coupling turbine engine before the speed changer between prime mover and load machine at present, thereby make load machine can reach the process that starts and progressively reach rated speed from zero rotating speed the scheme of its solution.But these damping mechanisms that are provided with before speed changer are in the course of the work owing to friction or the liquid that mechanical linkage produces changes the reasons such as flow losses that cause at coupling turbine engine middle and slow speed of revolution, the capital makes these machineries that play buffer function very low in the efficient of specific period, it is very big to make that load machine starts the original machine power loss that reaches rated speed this period from zero rotating speed, and the buffer mechanism that is provided with before this external above-mentioned speed changer has also greatly increased manufacture cost and maintenance expenses.In recent years, at prime mover is the situation of motor, domestic and international many users are also generally by utilizing converter technique to realize the startup and the speed governing of prime mover, but converter technique need be used variable-frequency motor and a whole set of corresponding electronics auxiliary facility, and frequency modulation, speed governing also exist certain limit, some industries are used had obstacle, and furthermore converter technique involves great expense, disposable input is bigger, also makes some users hang back unavoidably.
The model utility content
The purpose of this utility model is solved the problem that prior art exists, so a kind of rational in infrastructure, easy to use, low cost of manufacture be provided, help automation control, can be according to the electronics numerically controlled stepless transmission of technological requirement speed governing at any time.
Be used to realize that the technical solution of foregoing invention purpose is such: the electronics numerically controlled stepless transmission that is provided is by prime mover, computer, controlled motor, reducing gear, the stepless speed changing mechanism that has stepless umbrella shape wheel, planetary gear train and tie-rod are formed, said planetary gear train is by sun gear, planet umbrella shape wheel, ring gear and planet wheel are formed, ring gear in the planetary gear train and sun gear drive planet wheel and rotate, improvement structure characteristic of the present utility model is to make the output shaft of prime mover to fixedly connected with the input end of sun gear in the planetary gear train with the input end of stepless speed changing mechanism simultaneously, stepless umbrella shape wheel in the stepless speed changing mechanism is by the wheel of the planet umbrella shape in a umbrella shape idle pulley and planetary gear train transmission joint, planet wheel and the coaxial attaching of tie-rod, the front end output shaft of tie-rod and the input shaft of load machine are fixedly connected, the feedback information line of load machine is connected to the load signal input end of computer, and prime mover feedback information line of computer and speed regulating control line are connected to the feedback signal input end of prime mover and the speed-regulating signal input end of controlled motor respectively.The main feature of this speed change gear structure is: though original machine output shaft connect be arranged in the gear arrangement and simultaneously with the input end of stepless speed changing mechanism and planetary gear train in fastening connection of input end of sun gear, above-mentioned two-part mechanism also is synchronous operation when prime mover rotates, but speed governing and the stepless umbrella shape of process by stepless speed changing mechanism are taken turns, the planet umbrella shape is taken turns, the transmission of umbrella shape idle pulley, can directly control the movement velocity of ring gear in the planetary gear train.In the real work, when the linear velocity that contacts the motion of tooth portion corresponding by planet wheel when sun gear and ring gear was identical, though planet wheel rotates, the tie-rod that connects with it can be motionless, and promptly the rotating speed of speed change gear output shaft is zero rotating speed; As directly control the movement velocity of ring gear with stepless speed changing mechanism, when the linear velocity that makes ring gear and sun gear contact the motion of tooth portion corresponding by planet wheel progressively is changed to different speed, the tie-rod that is connected with planet wheel can be done stepless speed change, and promptly the rotating speed of speed change gear output shaft can infinitely reach the rotating speed of user's designing requirement from zero rotating speed.The speed regulating structure of stepless speed changing mechanism can utilize electronic digital control technology directly to control by electronic computer and controlled motor etc. in this device.
Compared with prior art, the compact structure of stepless speed changes devices described in the utility model, reliable performance, manufacturing process be good, cheap, be easy to automation control, and product can be widely used in industry and the department that petrochemical industry, mining machinery etc. need carry out stepless change work, electromechanical integration and increasingly automated control.
Description of drawings
Accompanying drawing is the structural representation of a specific embodiment of the utility model.
Embodiment
Referring to accompanying drawing, electronics numerically controlled stepless transmission described in the utility model comprises prime mover 1, computer 13, controlled motor 14, reducing gear 15, has the members such as stepless speed changing mechanism 4, planetary gear train and tie-rod 10 of stepless umbrella shape wheel 5.Planetary gear train is made up of sun gear 3, planet umbrella shape wheel 6, ring gear 8 and planet wheel 9, and ring gear 8 wherein and sun gear 3 drive planet wheel 9 and rotate.The output shaft 2 of prime mover 1 is fixedlyed connected with the input end of sun gear 3 in the planetary gear train with the input end of stepless speed changing mechanism 4 simultaneously, stepless umbrella shape wheel 5 in the stepless speed changing mechanism 4 is taken turns 6 transmission joint by a umbrella shape idle pulley 7 and the planet umbrella shape in the planetary gear train, planet wheel 9 and tie-rod 10 coaxial attachings, the front end output shaft 11 of tie-rod 10 is fixedly connected with the input shaft of load machine 12, the feedback information line 18 of load machine 12 is connected to the load signal input end of computer 13, and prime mover feedback information line 16 of computer 13 and speed regulating control line 19 link with the feedback signal input end of prime mover 1 and the speed-regulating signal input end of controlled motor 14 respectively.
Working principle of the present utility model is: when prime mover 1 running, its output shaft 2 gos deep into gear inside, this output shaft 2 not only with 3 one-tenths fixed connections of sun gear, the input end of while and stepless speed changing mechanism 4 is for being fixedly connected; Stepless umbrella shape wheel 5 in the stepless speed changing mechanism and the planet umbrella shape wheel in the planetary gear train 6 link by umbrella shape idle pulley 7; Ring gear 8 in the planetary gear train and sun gear 3 drives planet wheels 9 and move, by 10 rotations of planet wheel 9 drive tie-rods, and the output shaft 11 by being fixedly connected with tie-rod 10, the function that prime mover 1 is exported inputs in the load machine 12.Install in service, if the linear velocity of tooth portion motion is consistent with the linear velocity that sun gear 3 tooth portions move in the ring gear 8, tie-rod 10 is can be static, that is to say, when prime mover 1 ran up and imports rated power, the interior all gears of speed change gear all in engagement, did not have engaging and disengaging gear, under all unseparated situation of any mechanical component, the output shaft 11 of speed change gear can be zero rotating speed.
In the utility model device, the controlled motor 14 that is subjected to computer 13 controls makes ring gear 8 produce stepless speed change by adjusting the speed regulating mechanism 15 in the stepless speed changing mechanism.Be provided with prime mover feedback information line 16 in the device, load machine feedback information line 18, some electronic circuits such as load machine corollary equipment feedback information line 17, these feedback information lines are with the temperature in the various device, flow, speed, pressure, voltage, various information such as electric current feed back in the computer 13 selectively, after computer requires to analyze according to the specific design of equipment and integrates these information datas, directly adjust the movement velocity of ring gear 8 in the planetary gear train again by computer speed regulating control line 19, make equipment operation reach good working order, can unit or multimachine integration of operation in the implementation process.If when having broken the state of equilibrium that tooth portion line of motion speed equates in the tooth portion and sun gear 3 in the ring gear 8, output shaft 11 in this speed change gear will be the rotating speed of zero adjustment to any one regulation from rotating speed, utilize the working procedure that Computerized Numerical Control can be from zero rotating speed to the extraordinary speed change gear of any design speed thereby reach.
Claims (1)
1, a kind of electronics numerically controlled stepless transmission, by prime mover (1), computer (13), controlled motor (14), reducing gear (15), the stepless speed changing mechanism (4) that has stepless umbrella shape wheel (5), planetary gear train and tie-rod (10) are formed, said planetary gear train is by sun gear (3), planet umbrella shape wheel (6), ring gear (8) and planet wheel (9) are formed, ring gear in the planetary gear train (8) and sun gear (3) drive planet wheel (9) and rotate, it is characterized in that: the output shaft (2) of prime mover (1) is fixedlyed connected with the input end of sun gear (3) in the planetary gear train with the input end of stepless speed changing mechanism (4) simultaneously, stepless umbrella shape wheel (5) in the stepless speed changing mechanism (4) is taken turns (6) transmission joint by a umbrella shape idle pulley (7) and the planet umbrella shape in the planetary gear train, planet wheel (9) and the coaxial attaching of tie-rod (10), the front end output shaft (11) of tie-rod (10) is fixedly connected with the input shaft of load machine (12), the feedback information line (18) of load machine (12) is connected to the load signal input end of computer (13), and prime mover feedback information line (16) of computer (13) and speed regulating control line (19) are connected to the feedback signal input end of prime mover (1) and the speed-regulating signal input end of controlled motor (14) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200328505U CN201096174Y (en) | 2007-09-26 | 2007-09-26 | Electronic numerical control stepless transmission arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200328505U CN201096174Y (en) | 2007-09-26 | 2007-09-26 | Electronic numerical control stepless transmission arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096174Y true CN201096174Y (en) | 2008-08-06 |
Family
ID=39923227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200328505U Expired - Fee Related CN201096174Y (en) | 2007-09-26 | 2007-09-26 | Electronic numerical control stepless transmission arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201096174Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809615A (en) * | 2014-02-26 | 2014-05-21 | 山东景昂机电有限公司 | Precise output positioning speed reducer and precise output positioning method thereof |
-
2007
- 2007-09-26 CN CNU2007200328505U patent/CN201096174Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809615A (en) * | 2014-02-26 | 2014-05-21 | 山东景昂机电有限公司 | Precise output positioning speed reducer and precise output positioning method thereof |
| CN103809615B (en) * | 2014-02-26 | 2017-03-22 | 山东景昂机电有限公司 | Precise output positioning speed reducer and precise output positioning method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |