CN205605943U - Local stroke pneumatic actuator - Google Patents
Local stroke pneumatic actuator Download PDFInfo
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- CN205605943U CN205605943U CN201620431232.7U CN201620431232U CN205605943U CN 205605943 U CN205605943 U CN 205605943U CN 201620431232 U CN201620431232 U CN 201620431232U CN 205605943 U CN205605943 U CN 205605943U
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Abstract
The utility model discloses a local stroke pneumatic actuator, it includes main solenoid valve, drive mechanism, two main pistons of the left and right sides are adorned respectively and are being controlled two piston intracavitys, the compression spring stack is on the main piston, by driving valve about in the middle of the two piston chambeies, two piston chambeies about master cylinder air piping connects, two piston chambeies of the left and right sides are respectively connected one and are concatenated the piston chamber, two concatenate concatenating the piston and also can following the left and right sides and remove of piston intracavity to the centre, about two concatenate and install limit post rod on the piston, produces at a clearance between its and the left and right sides main piston, limit post rod is last to install adjustable stop device, two concatenate between the piston chamber to connect and concatenate jar air piping. The utility model discloses the structure can realize accuse far away to concatenating the piston end, and then controls local stroke scope, and adjustable spacing the putting of local stroke angle accessible is adjusted, and be nimble reliable.
Description
Technical field
This utility model relates to pneumatic machinery technical field, is exactly a kind of local stroke pneumatic actuator.
Background technology
Pneumatic actuator be with atmospheric pressure drive open and close or the execution device of control valve, again by claim pneumatic actuator or
Pneumatic means, in power plant, chemical industry, is widely used in the production process higher to safety requirements such as oil refining.
Accompanying drawing 1 is the schematic diagram of existing Pneumatic actuator, and after master solenoid 01 is energized, pressure air is by master cylinder air
Pipeline 10 respectively enters two ends, the left and right plunger shaft 06 of pneumatic actuator, makes left and right two-piston 03 stress simultaneously, compression left and right bullet
Spring group 07, moves to centre, is driven by drive mechanism (02) and is driven valve 08 to complete closure or openness action, and when main electricity
During magnet valve 01 power-off, main piston chamber 06, left and right two pressure reduces, the groups of springs 07 of left and right compression can promote simultaneously about two
Piston 03 moves laterally, drives drive mechanism 02 valve 08 will be driven to turn off or on, to ensure system condition rapidly
Safety.
By Fig. 1 it is found that existing piston 03 stopping means is two jackscrews 05, need manual adjustment, when whole
During system work, valve 08 is driven to be chronically at normally opened or normally closed position 09, owing to being failure to actuate for a long time, when electromagnetic valve 01 breaks
During electricity, it is easy to because of driven that valve 08 is stuck or clamping stagnation cause system cannot quick closedown or unlatching and bring safety problem or
Relevant device damages.
Summary of the invention:
The purpose of this utility model is to provide a kind of local stroke pneumatic actuator.Technical scheme is as follows: a kind of partial row
Journey pneumatic actuator, it includes master solenoid (01), concatenation cylinder electromagnetic valve (01 '), drive mechanism (02), left and right two main piston
(03), two-piston chamber, left and right (06), compression spring set (07), driven valve (08), master cylinder air pipe line (10), concatenation cylinder is empty
Air pipe (10 '), concatenation piston (11), spacing mandril (12), concatenation plunger shaft (13), adjustable limiting device (14).Spacing top
A gap (04), valve opening instruction is had to have standard-sized sheet (09), the locally instruction of stroke aperture between bar (12) and left and right piston (06)
(09 '), the instruction of fully closed aperture (09 ' '), three kinds of states, it is characterised in that: master solenoid (01) and concatenation cylinder electromagnetic valve (01 ')
After energising, pressure air can respectively enter system by master cylinder air pipe line (10) with concatenation cylinder air pipe line (10 ') and be connected
Main piston chamber, left and right (06), left and right concatenation plunger shaft (13), make the main piston (03) of left and right, left and right concatenation piston (11) be subject to simultaneously
Power, the compression spring set (07) on left and right main piston (03) that main piston chamber, left and right (06) is installed passes through drive mechanism (02) will
Moment of torsion passes to be driven valve (08), left and right concatenation piston (11) also can move to centre from the left and right sides, and left and right concatenation is lived
Plug (11) stops at the setting of the adjustable limiting device (14) being arranged on spacing mandril (12)；Left and right two concatenation piston (11)
Produce a gap (04) between spacing mandril (12) and the left and right main piston (03) of upper installation, now, driven valve (08)
It is in fully open position state (09);And when master solenoid (01) power-off, main piston chamber, left and right (06) pressure declines, compression spring
Group (07) can promote left and right main piston (06) to two side shiftings, charged owing to now concatenating cylinder electromagnetic valve (01 '), so, left and right
Concatenation piston (11) can maintain position with the spacing mandril (12) installed on it under the pressure concatenating cylinder air pipe line (10 ')
Put, thus limit the movement of left and right main piston (03), now driven valve (08) to be in local stroke state (09 ');Again
Secondary to master solenoid (01) energising, main piston chamber, left and right (06) pressure rises, and compression spring set (07) can promote left and right main piston
(03) move to centre, now driven valve (08) to return to fully open position state (09), by controlling holding concatenation cylinder electromagnetism
The charged power on/off with master solenoid (01) of valve (01 '), repeats local stroke state;When master solenoid (01) and concatenation electromagnetism
Valve (01 ') power-off, left and right sides main piston chamber (06), the pressure air of left and right concatenation plunger shaft (13) can pass through master cylinder air pipe line
(10), concatenation cylinder air pipe line (10 ') emptying, main piston chamber, left and right (06), the pressure of left and right concatenation plunger shaft (13) reduces, this
Time, compression spring set (07) can promote two main pistons (03) to move laterally, and two main pistons (03) are by being arranged on concatenation piston
(11) spacing mandril (12) on drives two to concatenate piston (11) with adjustable limiting device (14) and moves the most laterally, passes through
Drive mechanism (02) delivers torque to be driven valve (08) so that it is be in closed positions (09 ' ').Main piston (03) and string
Taking over a job plug (11), both of which has plunger shaft (06) and (13) of oneself.It system is the pipeline individually controlling main piston chamber (06)
(10) concatenate the pipeline (10 ') of plunger shaft (13) with control with electromagnetic valve (01) and concatenate cylinder electromagnetic valve (01 '), main by controlling
Electromagnetic valve (01) and the power on/off concatenating cylinder electromagnetic valve (01 '), it is achieved the control to local stroke.It is arranged on spacing mandril (12)
On adjustable limiting device (14) can adjust, and then control main piston (03) stroke.
The invention have the advantage that and add concatenation cylinder air pipe line and concatenation piston on the basis of prior art, concatenation is lived
Plug is arranged on spacing mandril, and they are arranged in concatenation plunger shaft, and spacing mandril is installed adjustable limiting device.This practicality is new
Type structure can realize remote control to concatenation piston end, and then controls local stroke range, and locally stroke angles can be by adjustable limit
Position is adjusted, flexibility and reliability, for the operating mode of longtime running, driven valve be chronically at standard-sized sheet or fully closed (state, by
In the long term of burn into peripheral environment of pipeline medium, other foreign body on being driven the impact of valve, cause most probably by
Driving the clamping stagnation or stuck of valve (08), make system to run, this local stroke Pneumatic actuator can well solve
This point.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing Pneumatic actuator.
Fig. 2 is this utility model whole system normal operating conditions schematic diagram.
Fig. 3 is the local stroke view of this utility model whole system.
Fig. 4 is the emergency shutdown view of whole system.
In figure, (01) is master solenoid, and (01 ') is concatenation cylinder electromagnetic valve, and (02) is drive mechanism, and (03) is that left and right two is main
Piston, (04) is the gap of spacing mandril and left and right piston, and (06) is two-piston chamber, left and right, and (07) is compression spring set, (08)
Being driven valve, (09) is the instruction of valve wide open aperture, and (09 ') is the stroke aperture instruction of valve local, and (09 ' ') valve is complete
Make and break degree indicates, and (10) are master cylinder air pipe lines, and (10 ') are concatenation cylinder air pipe lines, and (11) are concatenation pistons, and (12) are spacing
Push rod, (13) are concatenation plunger shaft, and (14) are adjustable limiting devices.
Detailed description of the invention
Normal operating conditions: after master solenoid 01 and concatenation cylinder electromagnetic valve 01 ' energising, pressure air can pass through master cylinder air
Pipeline 10 respectively enters the main piston chamber, left and right 06 of system, left and right concatenation plunger shaft 13 with concatenating cylinder air pipe line 10 ', makes a left side
Right main piston 03, left and right concatenate piston 11 stress simultaneously, and left and right main piston 03 compression spring set 07, by drive mechanism 02
Deliver torque to be driven valve 08.Now, left and right concatenation piston 11 also can move to centre from the left and right sides, but due to can
Stopping means 14 is adjusted to set up, so, left and right concatenation piston 11 stops at the setting of adjustable limiting device 14；Left and right two concatenation
Produce a gap 04 between spacing mandril 12 and the left and right main piston 03 installed on piston 11, now, driven at valve 08
In fully open position state 09, as shown in Figure 2.
Locally stroke state:
Left and right concatenation piston 11 is in ready state.
Master solenoid 01 power-off, main piston chamber 06, left and right pressure declines, and compression spring set 07 can promote left and right main piston 06
To two side shiftings.Charged owing to now concatenating cylinder electromagnetic valve 01 ', so, left and right concatenation piston 11 and the spacing top installed on it
Bar 12 can maintain position under the pressure of concatenation cylinder air pipe line 10 ', thus limits the movement of left and right main piston 03, now
Valve 08 is driven to be in local stroke state 09 ', as shown in Figure 3.
Being energized again to master solenoid 01, main piston chamber 06, left and right pressure rises, and compression spring set 07 can promote left and right main
Piston 03 moves to centre, is now driven valve 08 to return to fully open position state 09, can pass through according to actual condition needs
Control to keep the charged power on/off with master solenoid 01 of concatenation cylinder electromagnetic valve 01 ', repeat the local stroke state of Fig. 3.
Emergency shutdown state
01 can lead to concatenation electromagnetic valve 01 ' power-off, left and right sides main piston chamber 06, the pressure air of left and right concatenation plunger shaft 13
Crossing is master cylinder air pipe line 10, concatenation cylinder air pipe line 10 ' emptying, main piston chamber, left and right 06, the pressure of left and right concatenation plunger shaft 13
Power reduces, and now, compression spring set 07 can promote two main pistons 03 to move laterally, and two main pistons 03 are lived by being arranged on concatenation
Spacing mandril 12 on plug 11 drives two to concatenate piston 11 with adjustable limiting device (14) and moves the most laterally, passes through transmission
Mechanism 02 delivers torque to be driven valve 08 so that it is be in closed positions 09 ' ', as shown in Figure 4.
System advantage and application
ESD emergency cut-off.
Contrast traditional structure Fig. 1, this utility model structure can realize remote control, and then control office to concatenation piston (11) end
Portion's stroke range.
Locally stroke angles can be put 14 by adjustable limiting and is adjusted, flexibility and reliability.
For the operating mode of longtime running, valve 08 is driven to be chronically at standard-sized sheet 09 or fully closed 09 ' ' state, due to pipeline
The long term of the burn into peripheral environment of medium, other foreign body, on being driven the impact of valve 08, cause most probably and are driven
The clamping stagnation or stuck of valve 08, makes system to run, and this local stroke Pneumatic actuator can well solve this point.
Claims (4)
1. a local stroke pneumatic actuator, it includes master solenoid (01), drive mechanism (02), left and right two main piston (03)
Being attached separately in two-piston chamber, left and right (06), compression spring set (07) is enclosed within main piston (03), is driven valve (08) on a left side
In the middle of right two-piston chamber (06), master cylinder air pipe line (10) connects two-piston chamber, left and right (06), it is characterised in that: left and right two-piston
Chamber (06) respectively connects concatenation plunger shaft (13), and the concatenation piston (11) in two concatenations plunger shaft (13) also can be from left and right two
Moving in the middle of lateral, left and right two concatenates and is provided with spacing mandril (12) on piston (11), produces between itself and left and right main piston (03)
A raw gap (04), spacing mandril (12) is provided with adjustable limiting device (14), connects between two concatenations plunger shaft (13)
Connect concatenation cylinder air pipe line (10 ').
Local the most according to claim 1 stroke pneumatic actuator, it is characterised in that: main piston (03) with concatenate piston
(11), both of which has the plunger shaft (06,13) of oneself.
Local the most according to claim 1 stroke pneumatic actuator, it is characterised in that: system is individually control main piston
The pipeline (10) in chamber (06) and electromagnetic valve (01) concatenate pipeline (10 ') and the concatenation cylinder electromagnetic valve of plunger shaft (13) with control
(01 '), by controlling master solenoid (01) and the power on/off concatenating cylinder electromagnetic valve (01 '), it is achieved the control to local stroke.
Local the most according to claim 1 stroke pneumatic actuator, it is characterised in that: it is arranged on spacing mandril (12)
Adjustable limiting device (14) can adjust, and then controls the stroke of main piston (03).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431232.7U CN205605943U (en) | 2016-05-13 | 2016-05-13 | Local stroke pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431232.7U CN205605943U (en) | 2016-05-13 | 2016-05-13 | Local stroke pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205605943U true CN205605943U (en) | 2016-09-28 |
Family
ID=56966951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620431232.7U Active CN205605943U (en) | 2016-05-13 | 2016-05-13 | Local stroke pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205605943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869851A (en) * | 2017-08-17 | 2018-11-23 | 上海飞球科技（集团）有限公司 | A kind of pneumatic Direct Travel actuator and its pneumatic actuator |
| CN109237112A (en) * | 2018-11-09 | 2019-01-18 | 珠海市摩尔自动化技术有限公司 | A kind of three-position type actuator |
-
2016
- 2016-05-13 CN CN201620431232.7U patent/CN205605943U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869851A (en) * | 2017-08-17 | 2018-11-23 | 上海飞球科技（集团）有限公司 | A kind of pneumatic Direct Travel actuator and its pneumatic actuator |
| CN108869851B (en) * | 2017-08-17 | 2020-07-03 | 上海飞球科技（集团）有限公司 | Pneumatic straight stroke actuator and pneumatic actuating mechanism thereof |
| CN109237112A (en) * | 2018-11-09 | 2019-01-18 | 珠海市摩尔自动化技术有限公司 | A kind of three-position type actuator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |