CN209100736U - A kind of gas flow rate regulating device - Google Patents
A kind of gas flow rate regulating device Download PDFInfo
- Publication number
- CN209100736U CN209100736U CN201821920820.2U CN201821920820U CN209100736U CN 209100736 U CN209100736 U CN 209100736U CN 201821920820 U CN201821920820 U CN 201821920820U CN 209100736 U CN209100736 U CN 209100736U
- Authority
- CN
- China
- Prior art keywords
- stepper motor
- throttle valve
- flow rate
- gas flow
- regulating device
- 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 - Fee Related
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model provides a kind of gas flow rate regulating device, including throttle valve and bracket, throttle valve is fixedly mounted on the side of bracket, the present apparatus further includes transmission mechanism, stepper motor and encoder, stepper motor is fixedly mounted on the other side of bracket, the spool of throttle valve passes through the output axis connection of transmission mechanism and stepper motor, is equipped with encoder on stepper motor.The utility model can high-precision adjusting throttle valve size, make to stablize by the sample flow rate of throttle valve, avoidable gas circuit blocks, sample carryover causes the generation of corrosion phenomenon.Stepper motor with feedback device avoids burning motor, ensures instrument safety.
Description
Technical field
The utility model belongs to gas flow rate regulating device, and in particular to a kind of gas flow rate regulating device.
Background technique
The adjusting of existing gas flow rate is mainly controlled to adjust with solenoid valve, and flow through in a particular application the gas of valve body at
Divide complexity, some gaseous samples are corrosive and impurity.It will cause pipeline using solenoid valve for a long time and block damage phenomenon shadow
Ring normal use.
Summary of the invention
The utility model overcomes the shortcomings of the prior art, and provides a kind of gas flow rate regulating device, flows adjusting
While fast, avoid pipeline and block corrosion phenomenon.
Technology used by the utility model is as follows: a kind of gas flow rate regulating device, including throttle valve and bracket, throttling
Valve is fixedly mounted on the side of bracket, and the present apparatus further includes transmission mechanism, stepper motor and encoder, and stepper motor is fixedly mounted
In the other side of bracket, the spool of throttle valve passes through the output axis connection of transmission mechanism and stepper motor, pacifies on stepper motor
Equipped with encoder.
The utility model further includes following technical characteristic:
1, the transmission mechanism includes recessed axis and protruding shaft, and recessed axis and protruding shaft correspond to each other in the axial direction, recessed axis rotational energy
Protruding shaft rotation is enough driven, and the separation or close axial movement relative to recessed axis can be generated, completes high accuracy positioning rotation.
2, the spool of one end of the protruding shaft and throttle valve connects, one end of the recessed axis and the output of stepper motor
Axis connection.
3, stepper motor drives recessed axis rotation, and then drives the valve core rotation of protruding shaft drive throttle valve, to control throttling
The opening and closing of valve.
The beneficial effects of the utility model are as follows: can high-precision adjusting throttle valve size, make the sample by throttle valve
Product flow speed stability, avoidable gas circuit blocks, sample carryover causes the generation of corrosion phenomenon.Stepper motor with feedback device,
It avoids burning motor, ensures instrument safety.
Detailed description of the invention
Fig. 1 is present apparatus structural front view when throttle valve is closed；
Fig. 2 is present apparatus structural front view when throttle valve is opened；
Fig. 3 is present apparatus structural upright schematic diagram；
Fig. 4 is the recessed axle construction stereoscopic schematic diagram of the present apparatus；
Fig. 5 is the protruding shaft structural upright schematic diagram of the present apparatus；
Wherein 1, bracket, 2, throttle valve, 3, protruding shaft, 4, recessed axis, 5, stepper motor, 6, encoder.
Specific embodiment
The utility model citing is described further below according to Figure of description:
Embodiment 1:
As shown in Figs. 1-5, a kind of gas flow rate regulating device, including throttle valve and bracket, the present apparatus further include driver
Structure, stepper motor and encoder, throttle valve and stepper motor are respectively and fixedly installed to the two sides of bracket, and the spool of throttle valve passes through
The output axis connection of transmission mechanism and stepper motor is equipped with encoder, encoder output pulse signal on stepper motor.It is described
Transmission mechanism include recessed axis and protruding shaft, recessed axis and protruding shaft correspond to each other in the axial direction, and the rotation of recessed axis is able to drive protruding shaft rotation,
And separation or close axial movement relative to recessed axis can be generated.One end of the protruding shaft and the spool of throttle valve connect,
One end of the recessed axis and the output axis connection of stepper motor.When work, stepper motor drives recessed axis rotation, and then drives convex
Axis drives the valve core rotation of throttle valve, to control the opening and closing of throttle valve.The encoder, exportable pulse signal, passes through
Stepper motor is adjusted again, forms feedback.Because the pulse signal of encoder output is synchronous with stepper motor rotation step number, work as stepping
When motor occurs losing step phenomenon, pulse signal and step motor control signal will generate deviation.It at this moment can be by adjusting again
Stepper motor makes it adjust throttle valve and reaches specified amount, to complete feedback operation, it can the maximum open amount of valve is limited,
Throttle valve can be prevented locked again.
Claims (4)
1. a kind of gas flow rate regulating device, including throttle valve and bracket, throttle valve are fixedly mounted on bracket side, feature exists
In: it further include transmission mechanism, stepper motor and encoder, stepper motor is fixedly mounted on bracket other side, the valve of throttle valve
Core passes through the output axis connection of transmission mechanism and stepper motor, is equipped with encoder on stepper motor.
2. a kind of gas flow rate regulating device according to claim 1, it is characterised in that: the transmission mechanism includes recessed
Axis and protruding shaft, recessed axis and protruding shaft correspond to each other in the axial direction, and recessed axis rotation is able to drive protruding shaft rotation, and can generate relative to recessed
The separation of axis or close axial movement.
3. a kind of gas flow rate regulating device according to claim 2, it is characterised in that: one end of the protruding shaft and section
Flow the spool connection of valve, one end of the recessed axis and the output axis connection of stepper motor.
4. a kind of gas flow rate regulating device according to claim 3, it is characterised in that: stepper motor drives recessed axis rotation
Turn, and then drive the valve core rotation of protruding shaft drive throttle valve, to control the opening and closing of throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920820.2U CN209100736U (en) | 2018-11-21 | 2018-11-21 | A kind of gas flow rate regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920820.2U CN209100736U (en) | 2018-11-21 | 2018-11-21 | A kind of gas flow rate regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100736U true CN209100736U (en) | 2019-07-12 |
Family
ID=67160789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821920820.2U Expired - Fee Related CN209100736U (en) | 2018-11-21 | 2018-11-21 | A kind of gas flow rate regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209100736U (en) |
-
2018
- 2018-11-21 CN CN201821920820.2U patent/CN209100736U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 |