CN209569396U - The actuator of exportable gradual change torque - Google Patents
The actuator of exportable gradual change torque Download PDFInfo
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- CN209569396U CN209569396U CN201920207034.6U CN201920207034U CN209569396U CN 209569396 U CN209569396 U CN 209569396U CN 201920207034 U CN201920207034 U CN 201920207034U CN 209569396 U CN209569396 U CN 209569396U
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- gear set
- gradual change
- actuator
- follower
- driving wheel
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Abstract
A kind of actuator of exportable gradual change torque, mounting rack is immobilized in the shell, motor, driving gear set, gradual change gear set are located in shell, and driving gear set, gradual change gear set are rotated and be fixed on mounting rack, and motor output shaft imparts power to gradual change gear set after driving gear set is slowed down；Gradual change gear set includes driving wheel and follower, driving wheel its it is coaxial on be equipped with one receive power input transmission gear, follower its it is coaxial on actuator output shaft is installed, the actuator output shaft other end stretches out outside shell, during driving wheel and follower engaged transmission, when driving wheel engages radius from when becoming smaller greatly, the engagement radius of follower becomes larger from small.The utility model realizes actuator output variable torque by tip designs a pair of gradual change gear set in actuator transmission mechanism, solves the problems, such as to need change in torque big during valve switch.
Description
Technical field:
The utility model relates to valve actuator, in particular to a kind of actuator of exportable gradual change torque.
Background technique:
Existing actuator power output is kept essentially constant within the scope of total travel, and the valve that it is connected no matter
It is angle stroke or linear valve, the thrust or torque needed when fully open position is acted toward closed positions direction is minimum, In
Closed positions need to act thrust toward fully open position direction when acting or torque is maximum, are acted from closed positions to fully open position
The thrust or torque needed is gradually smaller.In a bit of stroke closed entirely, the torque or thrust needed is all very big, especially
That pipeline pressure difference is very big or soft seal class valve, torque or thrust even standard-sized sheet when several times, this is by pipeline and valve
What characteristic determined, in order to preferably turn off and Open valve, in the type selecting of actuator often by the thrust of actuator or torque
Coefficient put very big, therefore the purchase cost and cost of use of user are increased compared with the actuator of high thrust or torque.
Summary of the invention:
In consideration of it, it is necessary to design a kind of actuator of exportable gradual change torque, the torsion for exporting it adapt to valve by
Standard-sized sheet changes to full pass or by the resistance of Quan Guanzhi standard-sized sheet process.
A kind of actuator of exportable gradual change torque, comprising: shell, motor, driving gear set, actuator output shaft, peace
It shelves；The actuator of exportable gradual change torque further includes gradual change gear set；Wherein, mounting rack is immobilized in the shell, motor, transmission
Gear set, gradual change gear set are located in shell, and driving gear set, gradual change gear set are rotated and be fixed on mounting rack, and motor is defeated
Shaft imparts power to gradual change gear set after driving gear set is slowed down；Gradual change gear set includes driving wheel and follower, master
Driving wheel its it is coaxial on be equipped with one receive power input transmission gear, follower its it is coaxial on actuator output shaft is installed,
The actuator output shaft other end stretch out shell outside, driving wheel and follower engaged transmission during, when driving wheel engage radius from
When becoming smaller greatly, the engagement radius of follower becomes larger from small.
Preferably, driving wheel and follower are imperfect gear.
Preferably, driving wheel and follower use elliptic gear.
Preferably, mounting rack includes upper mounting rack and lower mounting rack, and lower mounting rack is immobilized in the shell bottom.
It is defeated to realize actuator by tip designs a pair of gradual change gear set in actuator transmission mechanism for the utility model
Variable torque out solves the problems, such as to need change in torque big during valve switch.
Detailed description of the invention:
Attached drawing 1 is the schematic cross-sectional view of the actuator of the exportable gradual change torque of a width better embodiment.
Attached drawing 2 is the schematic top plan view of the drive state of the gradual change gear set of a width better embodiment.
Attached drawing 3 is the schematic top plan view of the drive state of the gradual change gear set of a width better embodiment.
In figure: shell 1, motor 2, driving gear set 3, actuator output shaft 4, driving wheel 61, follower 62, transmission gear
31, upper mounting rack 51, lower mounting rack 52.
Specific embodiment:
As shown in Figures 1 to 3, a kind of actuator of exportable gradual change torque, comprising: shell 1, motor 2, driving gear set 3,
Actuator output shaft 4, mounting rack；The actuator of exportable gradual change torque further includes gradual change gear set；Wherein, mounting rack is fixed on
In shell 1, motor 2, driving gear set 3, gradual change gear set are located in shell 1, and driving gear set 3, gradual change gear set rotate
It is fixed on mounting rack, 2 output shaft of motor imparts power to gradual change gear set after the deceleration of driving gear set 3；Gradual change gear
Group include driving wheel 61 and follower 62, driving wheel 61 its it is coaxial on be equipped with one receive power input transmission gear 31, should
Transmission gear 31 is one in aforementioned drive gear group 3, follower 62 its it is coaxial on actuator output shaft 4 is installed, execute
4 other end of device output shaft stretches out outside shell 1, during 62 engaged transmission of driving wheel 61 and follower, when the engagement of driving wheel 61 half
From when becoming smaller greatly, the engagement radius of follower 62 becomes larger diameter from small.
When this actuator driven valve is acted from standard-sized sheet to full pass, the situation of change of gradual change gear set can be from Fig. 2 to Fig. 3's
Reacting condition comes out, according to F=T/R, wherein T is torque, the power received on F gear, the engagement radius of the active/passive wheel 61 of R, In
In the case that 61 input power of driving wheel is constant, the engagement radius of driving wheel 61 is increasing in the engagement radius for reducing follower,
Therefore the power output of driving wheel is increasing, since the interaction of power knows that the input power size of follower is equal to the defeated of driving wheel
Power output, it is reversed opposite.It is obtained being exponentially to increase on the torque of follower by formula T=F*R.
In the present embodiment, driving wheel 61 and follower 62 are imperfect gear.Driving wheel 61 and follower 62 use
Elliptic gear.Mounting rack includes upper mounting rack 51 and lower mounting rack 52, and lower mounting rack 52 is fixed on bottom in shell 1.
Claims (4)
1. a kind of actuator of exportable gradual change torque, comprising: shell, motor, driving gear set, actuator output shaft, installation
Frame；It is characterized in that, the actuator of exportable gradual change torque further includes gradual change gear set；Wherein, mounting rack is immobilized in the shell,
Motor, driving gear set, gradual change gear set are located in shell, and driving gear set, gradual change gear set, which rotate, is fixed on mounting rack
On, motor output shaft imparts power to gradual change gear set after driving gear set is slowed down；Gradual change gear set include driving wheel and
Follower, driving wheel its it is coaxial on be equipped with one receive power input transmission gear, follower its it is coaxial on execution is installed
Device output shaft, the actuator output shaft other end stretch out outside shell, during driving wheel and follower engaged transmission, when driving wheel is nibbled
Radius is closed from when becoming smaller greatly, the engagement radius of follower becomes larger from small.
2. the actuator of exportable gradual change torque as described in claim 1, which is characterized in that driving wheel is endless with follower
Whole gear.
3. the actuator of exportable gradual change torque as claimed in claim 1 or 2, which is characterized in that driving wheel is adopted with follower
Use elliptic gear.
4. the actuator of exportable gradual change torque as described in claim 1, which is characterized in that mounting rack include upper mounting rack and
Lower mounting rack, lower mounting rack are immobilized in the shell bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920207034.6U CN209569396U (en) | 2019-02-19 | 2019-02-19 | The actuator of exportable gradual change torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920207034.6U CN209569396U (en) | 2019-02-19 | 2019-02-19 | The actuator of exportable gradual change torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569396U true CN209569396U (en) | 2019-11-01 |
Family
ID=68334004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920207034.6U Active CN209569396U (en) | 2019-02-19 | 2019-02-19 | The actuator of exportable gradual change torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707898A (en) * | 2019-02-19 | 2019-05-03 | 宁夏银星吴忠仪表流体控制有限公司 | The actuator of exportable gradual change torque |
-
2019
- 2019-02-19 CN CN201920207034.6U patent/CN209569396U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707898A (en) * | 2019-02-19 | 2019-05-03 | 宁夏银星吴忠仪表流体控制有限公司 | The actuator of exportable gradual change torque |
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