CN2034219U - Direct digit-control stepless gearbox - Google Patents
Direct digit-control stepless gearbox Download PDFInfo
- Publication number
- CN2034219U CN2034219U CN 87206002 CN87206002U CN2034219U CN 2034219 U CN2034219 U CN 2034219U CN 87206002 CN87206002 CN 87206002 CN 87206002 U CN87206002 U CN 87206002U CN 2034219 U CN2034219 U CN 2034219U
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- CN
- China
- Prior art keywords
- control
- step motor
- utility
- model
- digit
- 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 - Lifetime
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Abstract
The utility model discloses a direct digit-control stepless gearbox that is a fixed wheelbase movable cone disk mechanical gearbox whose transmission ratio is controlled by a step motor. The control mechanism is driven by the step motor, so the computer digit-control is achieved conveniently. When the utility model is used for the main gear of an electromechanical machine tool adopting step motor control system, the step motor of the direct digit-control stepless gearbox can use the same debugging devices and detection devices of the feeding motor, so the utility model has the advantages of good processing property, convenience to manufacture and organization, and that the utility model is more easy to be used and maintained than the simulated electricity speed regulation system.
Description
The utility model is a kind of electromechanical integration stepless speed variator, and its control mechanism is by step motor drive.
But but existing parallel axes dead axle is to change velocity ratio by the axial position that control mechanism changes the mantle dish apart from mantle dish mechanical transmission, and its control mechanism is all by analog form work.When connecting with digital device, need digital-to-analog conversion and power analog device, complex structure, the electrohydraulic servo system that simulator is commonly used needs the high hydraulic system of cleanliness, and design, manufacturing and working service are all very difficult, poor reliability.
The purpose of this utility model provides a kind of mechanical transmission of pure digi-tal control, and it adopts the powerful Wechselstrommotor of the numerically controlled step motor control of small-power/speed changer dragging system.A kind of main transmission of pure digi-tal control is provided for the electromechanical machine that adopts stepping machine control.
But but the dead axle of step motor control apart from mantle dish mechanical transmission by input shaft that the mantle dish is housed and output shaft, the intermediate of flexible or rigidity and chain type, adjustable lever, control mechanism and the casing that these parts are installed are formed.But the mantle dish has tetrad ejector half and two linkage types.Control mechanism comprises a drive unit and a sets of transmission mechanism.The most frequently used transmission is a screw pair, can certainly be other transmission such as pinion and rack.Drive unit is a stepper motor, the driving link of the axial restraint of its drive transmission device, but driven member then is axially movable and links by controlling rod and mantle dish.No matter adopt the sort of driving mechanism, its working principle all is by numerically controlled step motor drive driving link, thereby but makes driven member drive mantle dish move axially the rotating speed that changes output shaft.Because but stepper motor is determining the axial position of mantle dish by driving mechanism, thereby the velocity ratio that makes speed changer is determined by the digital device of control step motor, therefore, this speed changer be the control of a kind of pure digi-tal can be easily and the joining mechanical transmission of digital device, if give numerical control device with the speed feedback of output shaft, just can constitute a closed-loop system.
Mechanical transmission with simulation control is compared, but mantle dish mechanical transmission is a kind of mechanical transmission of pure digi-tal control, simple in structure, the reliability height, easy to use, safeguard easily, in manufacture process, can survey commissioning device and technology with the shared suit collating of the stepper motor that the feeding transmission is used, be convenient to organization of production.If give numerical control device with the speed feedback of output shaft, just can constitute a closed-loop system.
But recommend to adopt the moving mantle dish-type of tetrad when Direct Digital control stepless speed variator is used on lathe, give and explanation below in conjunction with accompanying drawing.But accompanying drawing has shown a kind of basic structure of tetrad mantle dish-type stepless speed variator of Direct Digital control.Parts shown in the sequence number are respectively (1) by electric motor driven input shaft among the figure, but two axially movable only mantle dishes are housed on it, (2) output shaft parallel with input shaft, but two axially movable only mantle dishes are housed also on it, (3) be intermediate, this intermediate is when transmission is more high-power, should select linked transmission for use, when transmitting middle low power, then should select belt transmission for use, want cube hour then should select steel band for use, (4) at feed screw nut's driving mechanism in the input shaft and the output shaft outside and the controlling rod that links with the groove pin with nut, (5) are and the joining stepper motor of feed screw nut, (6) be the adjustable lever parallel with output shaft with input shaft, two nut sleeve are housed on the bar, and this bar links by pin on the nut sleeve and controlling rod, and controlling rod is when being driven by feed screw nut pair, to sell with this is the fulcrum rotation, but thereby drive the mantle dish, at ordinary times, can utilize this bar to regulate degree of tightness.Sequence number (7) is a casing, and when using on lathe, this casing places on the lathe with the form of gearbox.
Claims (1)
1, a kind of stepless speed variator of Direct Digital control, its major character is the control mechanism with the step motor drive stepless speed variator, this control mechanism is a sleeve screw rod nut transmission, the fixing driving component of axial position is by step motor drive, but the controlling rod of the movable driving component of axial position and mantle dish links with the groove pin mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87206002 CN2034219U (en) | 1987-04-02 | 1987-04-02 | Direct digit-control stepless gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87206002 CN2034219U (en) | 1987-04-02 | 1987-04-02 | Direct digit-control stepless gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034219U true CN2034219U (en) | 1989-03-15 |
Family
ID=4821661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87206002 Expired - Lifetime CN2034219U (en) | 1987-04-02 | 1987-04-02 | Direct digit-control stepless gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742549A (en) * | 2021-03-03 | 2021-05-04 | 九江绿为沃特环保科技有限公司 | Sand mill for producing coating |
-
1987
- 1987-04-02 CN CN 87206002 patent/CN2034219U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742549A (en) * | 2021-03-03 | 2021-05-04 | 九江绿为沃特环保科技有限公司 | Sand mill for producing coating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |