CN203906977U - Integral type oscillating cylinder type pneumatic actuator - Google Patents
Integral type oscillating cylinder type pneumatic actuator Download PDFInfo
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- CN203906977U CN203906977U CN201420312324.4U CN201420312324U CN203906977U CN 203906977 U CN203906977 U CN 203906977U CN 201420312324 U CN201420312324 U CN 201420312324U CN 203906977 U CN203906977 U CN 203906977U
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- piston rod
- oscillating cylinder
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Abstract
The utility model relates to an integral type oscillating cylinder type pneumatic actuator. The integral type oscillating cylinder type pneumatic actuator comprises an air source control device and an oscillating cylinder. An installing plate is arranged on the oscillating cylinder, the air source control device is installed on the installing plate, a stroke feedback sensor in the air source control device is an angle displacement sensor, a stroke feedback linkage assembly comprises a link rod thrust plate, a feedback connecting rod and a feedback connecting plate, one end of the link rod thrust plate is fixed to a piston rod, the other end of the link rod thrust plate is in linkage connection with the feedback connecting rod, the other end, opposite to the end connected with the link rod thrust plate, of the feedback connecting rod is hinged to the feedback connecting plate, the other end, opposite to the end connected with the feedback connecting rod, of the feedback connecting plate is provided with a positioning sleeve, and an input shaft of the angle displacement sensor is sleeved with the positioning sleeve. Compared with the prior art, the integral type oscillating cylinder type pneumatic actuator has the advantages that the stroke feedback linkage assembly is reasonable in structure, a positioner is convenient to install, and work is reliable.
Description
technical field
The utility model relates to the final controlling element for opening/shutting valve, and the definite oscillating cylinder formula that says final controlling element more definitely says the integrated oscillating cylinder formula pneumatic actuator that a kind of positioning work piece and cylinder consubstantiality are installed.
Background technique
At present, pneumatic actuator occupies and consequence in industrial automation is produced, and the quality of its performance directly determines the effect of valve in pipeline.Oscillating cylinder formula pneumatic actuator is the one of pneumatic actuator.
Existing oscillating cylinder formula pneumatic actuator main structure includes control air source equipment and oscillating cylinder, oscillating cylinder includes cylinder block, front cover, rear end cover, piston body and piston rod, front cover and rear end cover cover respectively and are located at cylinder block front end and back end and form piston cavity, piston body is moving to be fitted in piston cavity, piston cavity is separated into two chambers by piston body, wherein the chamber between piston body and rear end cover is starting chamber, rear end cover is provided with and the first pore that starts chamber and be communicated with, chamber between piston body and front cover is reset chamber, front cover is provided with the second pore that leads to reset chamber, piston rod rear end is stretched in piston cavity and is connected on piston body, piston rod front end passes front cover, front cover is provided with the piston rod fitting seat hole of installing for piston rod, piston rod moves and fits in piston rod fitting seat hole through seal ring sealing, described control air source equipment includes the filtering pressure reducing valve being connected with compressed gas source, filtering pressure reducing valve pipeline is connected with positioning work piece, positioning work piece connects respectively on rear end cover the second pore on the first pore and front cover through two bronchuses, travel feedback sensor in positioning work piece is connected through travel feedback linkage unit and piston rod, its travel feedback sensor is lineal shape displacement transducer, travel feedback linkage unit comprises linkage rod, linkage rod one end is fixed on piston rod front end, the linkage rod the other end is connected on the sliding end of lineal shape displacement transducer in positioning work piece (if the patent No. is 200620151550.4 disclosed " a kind of pneumatic actuator locators ").There is following defect in the oscillating cylinder formula pneumatic actuator of existing structure: 1) adopts lineal shape displacement transducer, drive the sliding end of lineal shape displacement transducer along with the displacement of piston rod through linkage rod, the mounting point of positioning work piece is subject to the restriction of linkage rod, positioning work piece and swing type cylinder splitting are installed, there is the installation inconvenience of positioning work piece, and but realize between piston rod and the sliding end of lineal shape displacement transducer and realize transmission by linkage rod, there is the poor defect of reliable transmission;
2) in control air source equipment, positioning work piece is directly connected on cylinder by the road, in the time that compressed gas source atmospheric pressure deficiency stops air feed with transmission fault, existence is broken down while stopping air feed, affecting cylinder normally works, cause valve opening or close being affected, thereby affect the normal work of production line;
3) piston rod only relies on seal ring to seal, and not only has the assembling difficulty of piston rod, and after working long hours, and piston rod directly and front cover friction, causes damage.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of and adopts angle displacement sensor, and travel feedback linkage unit is rational in infrastructure, facilitates the installation of positioning work piece, and the integrated oscillating cylinder formula pneumatic actuator of reliable operation.
For achieving the above object, the utility model provides following technological scheme: a kind of integrated oscillating cylinder formula pneumatic actuator, include control air source equipment and oscillating cylinder, oscillating cylinder includes cylinder block, front cover, rear end cover, piston body and piston rod, front cover and rear end cover cover respectively and are located at cylinder block front end and back end and form piston cavity, piston body is moving to be fitted in piston cavity, piston cavity is separated into the starting chamber between piston body and rear end cover by piston body, and reset chamber between piston body and front cover, before, rear end cover is provided with vent, piston rod rear end is stretched in piston cavity and is connected on piston body, piston rod front end passes front cover, described control air source equipment includes the filtering pressure reducing valve being connected with compressed gas source, filtering pressure reducing valve pipeline is connected with positioning work piece, positioning work piece connects respectively through two bronchuses on the vent of front cover and rear end cover, travel feedback sensor in positioning work piece is connected through travel feedback linkage unit and piston rod, it is characterized in that: described oscillating cylinder is provided with mounting plate, control air source equipment is arranged on mounting plate, described travel feedback sensor is angle displacement sensor, described travel feedback linkage unit includes link rod thrust plate, feedback linkage and feedback link plate, described link rod thrust plate one end is fixed on piston rod, the link rod thrust plate the other end and feedback linkage are connected, the other end and feedback link plate that feedback linkage connects one end with respect to link rod thrust plate are articulated and connected, the other end that described feedback link plate connects one end with respect to feedback linkage is provided with setting sleeve, setting sleeve is sleeved on the input shaft of described angle displacement sensor.
By adopting technique scheme, travel feedback sensor in positioning work piece adopts angle displacement sensor, its stroke signal be input as rotation formula, the mobile link rod thrust plate that drives of piston rod moves, and then drive feedback linkage to move, and then drive the input shaft of angle displacement sensor to rotate by feedback link plate, thereby realize the feedback of stroke, transmission between piston rod and angle displacement sensor is reliable and stable, and link through the travel feedback linkage unit of said structure, realize the mounting distance that piston rod and angle displacement sensor are grown, facilitate the installation of position locator, realize and on oscillating cylinder, directly form mounting plate, control air source equipment is directly installed on and on mounting plate, forms monolithic construction, compact structure.
The utility model is further set to: between described feedback link plate and mounting plate, be provided with supporting component, supporting component includes strut and guide plate, guide plate is fixedly mounted on mounting plate, guide plate is provided with long strip pilot hole, described strut one end is in sliding axle is assemblied in the long strip pilot hole of guide plate and can be along the slippage of long strip pilot hole, and the described strut the other end is hinged on feedback link plate middle part.
By adopting technique scheme, when feedback link plate rotates, strut rotates with respect to feedback link plate accordingly, and slippage in the long strip pilot hole of guide plate, strut forms and supports feedback link plate, improve the rotational stability of feedback link bar, thereby improve the stability of travel feedback linkage unit transmission.
The utility model is further set to: described feedback linkage includes feedback linkage body and attaching nut, feedback linkage body shaft is equipped with outside thread shaft part to two ends, attaching nut includes internal thread pipe box portion and hinge bar portion, described feedback linkage two ends are respectively through attaching nut's hinge bar portion and link rod thrust plate, feedback link plate, and attaching nut's internal thread pipe box portion is threaded with the outside thread shaft part of feedback linkage body.
By adopting technique scheme, feedback linkage two ends adopt attaching nut to realize with link rod thrust plate, feedback link plate are connected accordingly, the length of feedback linkage can be by the length of the screw-thread fit of attaching nut's internal thread pipe box portion and the outside thread shaft part of feedback linkage body, form the length of feedback linkage is regulated, ensure that feedback linkage is connected reliably with link rod thrust plate, feedback link plate, thereby improve the stability of travel feedback linkage unit transmission.
The utility model is further set to: described control air source equipment also includes air lock, and described air lock is connected between positioning work piece and oscillating cylinder.
By adopting technique scheme, positioning work piece first connected an air lock before access oscillating cylinder, the underpressure of supplying with when compressed gas source or compressed gas source fault be not while working, latching valve cuts out, make before air pressure in swing type cylinder remains on fault, thereby ensure that it normally works, ensure the normal production work of production line, get rid of or produce and finish to fault.
The utility model is further set to: in the piston rod supporting base of installing for piston rod on described front cover, be pressed with axle sleeve, axle sleeve is provided with towards one end of piston rod rear end and the spacing defining flange coordinating in piston rod supporting base end, piston rod is located in axle sleeve, between piston rod and axle sleeve, be provided with seal ring, front cover upper piston rod supporting base is provided with sealed pressing sleeve and gland towards one end of piston rod front end, sealed pressing sleeve is in gland is fixed on piston rod supporting base, described sealed pressing sleeve sectional shape is L shaped shape, sealed pressing sleeve includes the gasket portion between gland and axle sleeve, and stuffing box gland portion between piston rod and gland.
By adopting technique scheme, between piston rod and front cover, warp beam sleeve and sealed pressing sleeve form and install and be sealed and matched, and are convenient to piston rod and are assemblied on front cover, and sealing is reliable, and after piston rod and axle sleeve wearing and tearing, keep in repair by changing axle sleeve, be convenient to safeguard.
The utility model is further set to: described axle sleeve is provided with two seal rings along axial direction, and inner hole of shaft sleeve wall offers annular oil groove between two seal rings.
By adopting technique scheme, annular oil groove reduces the friction area between axle sleeve and piston rod, can in annular oil groove, inject lubricating grease simultaneously, reduces between axle sleeve and piston rod and rubs, ensure that piston rod telescopic slide is reliable, lubricating grease is to providing excellent sealing between axle sleeve and piston rod simultaneously.
Below in conjunction with accompanying drawing, the utility model is further described.
Brief description of the drawings
Fig. 1 is the utility model specific embodiment integrated oscillating cylinder formula pneumatic actuator structural representation one;
Fig. 2 is the utility model specific embodiment integrated oscillating cylinder formula pneumatic actuator structural representation two;
Fig. 3 is the utility model specific embodiment swing type structural representation of air cylinder;
Fig. 4 is Fig. 3 A part partial enlarged view;
Fig. 5 is the utility model specific embodiment feedback link plate structure schematic diagram.
Embodiment
Referring to accompanying drawing 1, to accompanying drawing 5, the disclosed a kind of integrated oscillating cylinder formula pneumatic actuator of the utility model, includes control air source equipment 1 and oscillating cylinder 2.Described oscillating cylinder 2 includes cylinder block 21, front cover 22, rear end cover 23, piston body 24 and piston rod 25, front cover 22 and rear end cover 23 cover and are located at cylinder block 21 front end and back end and form piston cavity respectively, piston body 24 is moving to be fitted in piston cavity, piston cavity is separated into two chambers by piston body 24, wherein the chamber between piston body 24 and rear end cover 23 is starting chamber 211, chamber between piston body 24 and front cover 22 is reset chamber 212, forward and backward end cap 22,23 is provided with vent 213,214, front cover 22 upper vent holes 213 are connected with starting chamber 211, and rear end cover 23 upper vent holes 214 are connected with reset chamber 212, piston rod 25 rear ends are stretched in piston cavity and are connected on piston body 24, and piston rod 25 front ends pass front cover 22, are provided with the piston rod supporting base 221 supporting for piston rod 25 on front cover 22, and piston rod 25 is plugged on piston rod supporting base 221, wherein, in front cover 22 upper piston rod supporting bases 221, be pressed with axle sleeve 222, axle sleeve 222 is provided with towards one end of piston rod 25 rear ends and the spacing defining flange coordinating in piston rod supporting base 221 ends, piston rod 25 is located in axle sleeve 222, is provided with seal ring 223 and forms to be sealed and matched between piston rod 25 and axle sleeve 222, front cover 22 upper piston rod supporting bases 221 are provided with sealed pressing sleeve 224 and gland 225 towards one end of piston rod 25 front ends, sealed pressing sleeve 224 is in gland 225 is fixed on piston rod supporting base 222, gland 225 is fixed on piston rod supporting base 221 through screw, described sealed pressing sleeve 224 sectional shapes are L shaped shape, sealed pressing sleeve 224 includes the gasket portion 2241 between gland 225 and axle sleeve 222, and stuffing box gland portion 2242 between piston rod 25 and gland 225, sealed pressing sleeve 224 forms between gland 225 and axle sleeve 222 like this, and sealing between gland 225 and piston rod 25.Piston rod 25 warp beam sleeves 222 and sealed pressing sleeve 224 are assemblied on front cover 22, good seal performance, and piston rod 25 is easy to assembly, and also axle sleeve 222 is convenient to repair and replacement; For further improving sealing between axle sleeve and piston rod, described axle sleeve 222 is provided with two seal rings 223 along axial direction, and axle sleeve 222 inner hole walls offer annular oil groove 2221 between two seal rings 223; Like this under design, annular oil groove 2221 reduces the area of contact between axle sleeve 222 and piston rod 25, reduce rubbing surface, simultaneously can be at the interior injection lubricating grease of annular oil groove 2221, reduce friction between axle sleeve 222 and piston rod 25, ensure that piston rod 25 telescopic slide are reliable, lubricating grease is to providing excellent sealing between axle sleeve 222 and piston rod 25 simultaneously.
In this specific embodiment, described control air source equipment 1 includes the filtering pressure reducing valve 11 being connected with compressed gas source, filter decompression 11 pipelines and be connected with positioning work piece 12, positioning work piece 12 is connected with air lock 13 through tracheae, air lock 13 is connected to the vent 213 on front cover 22 and rear end cover 23 through two bronchuses, 214, thereby form positioning work piece 12 connects respectively front cover 22 and rear end cover 23 vent 213 through two bronchuses, on 214, between positioning work piece 12 and oscillating cylinder 2, be connected air lock 13 like this, before positioning work piece 12 accesses swing type cylinder 2, first instrument auxiliary device through air lock 13(air lock, when compressed gas source breaks down while stopping air feed, utilize air lock cutting-off valve control channel, make the position before valve location maintenance is died, conventional model has NT-40002 and NT-40001, it can directly be buied on existing market), the underpressure of supplying with when compressed gas source or compressed gas source fault be not while working, latching valve cuts out, make before air pressure in swing type cylinder remains on fault, thereby ensure that it normally works, ensure the normal production work of production line.Travel feedback sensor in described positioning work piece 12 is connected through travel feedback linkage unit and piston rod 25; Described oscillating cylinder 2 is provided with mounting plate 26, and control air source equipment 1 is arranged on mounting plate 26; Described travel feedback sensor is angle displacement sensor (angle displacement sensor is the parts that existing market can directly be buied, therefore repeat no more), and described travel feedback linkage unit includes link rod thrust plate 14, feedback linkage 15 and feedback link plate 16; Described link rod thrust plate 14 one end are fixed on piston rod 25, link rod thrust plate 14 the other ends and feedback linkage 15 are connected, the other end and feedback link plate 16 that feedback linkage 15 connects one end with respect to link rod thrust plate 14 are articulated and connected, the other end that described feedback link plate 16 connects one end with respect to feedback linkage 15 is provided with setting sleeve 17, and setting sleeve 17 is sleeved on the input shaft of described angle displacement sensor and locks through lock screw.Between described feedback link plate 16 and mounting plate 26, be provided with supporting component, supporting component includes strut 18 and guide plate 19, guide plate 19 is fixedly mounted on mounting plate 26, guide plate 19 is provided with long strip pilot hole 191, described strut 18 one end are in sliding axle is assemblied in the long strip pilot hole 191 of guide plate 19 and can be along 191 slippages of long strip pilot hole, and described strut 18 the other ends are hinged on feedback link plate 16 middle parts.
For ease of the debugging that is linked and packed of feedback linkage 15 and link rod thrust plate 14, feedback link plate 16; Described feedback linkage 15 includes feedback linkage body 151 and attaching nut 152, and the axial two ends of feedback linkage body 151 are equipped with outside thread shaft part 1511, on the outside thread shaft part 1511 at feedback linkage body 151 axial two ends, are all connected with attaching nut 152; Attaching nut 152 includes internal thread pipe box portion 1521 and hinge bar portion 1522, described feedback linkage 15 two ends are respectively through attaching nut 152 hinge bar portion 1522 and link rod thrust plate 14, feedback link plate 16, and attaching nut 152 internal thread pipe box portion 1521 is threaded with the outside thread shaft part 1511 of feedback linkage body 151.Like this attaching nut's 152 precessions or back-out feedback linkage body 151 upper outside threaded shaft sections 1511 are carried out to corresponding adjusting to the length and location of feedback linkage 15, ensure that feedback linkage 15 is connected reliably with link rod thrust plate 14, feedback link plate 16, thereby improve the stability of travel feedback linkage unit transmission.
Claims (6)
1. an integrated oscillating cylinder formula pneumatic actuator, include control air source equipment and oscillating cylinder, oscillating cylinder includes cylinder block, front cover, rear end cover, piston body and piston rod, front cover and rear end cover cover respectively and are located at cylinder block front end and back end and form piston cavity, piston body is moving to be fitted in piston cavity, piston cavity is separated into the starting chamber between piston body and rear end cover by piston body, and reset chamber between piston body and front cover, before, rear end cover is provided with vent, piston rod rear end is stretched in piston cavity and is connected on piston body, piston rod front end passes front cover, described control air source equipment includes the filtering pressure reducing valve being connected with compressed gas source, filtering pressure reducing valve pipeline is connected with positioning work piece, positioning work piece connects respectively through two bronchuses on the vent of front cover and rear end cover, travel feedback sensor in positioning work piece is connected through travel feedback linkage unit and piston rod, it is characterized in that: described oscillating cylinder is provided with mounting plate, control air source equipment is arranged on mounting plate, described travel feedback sensor is angle displacement sensor, described travel feedback linkage unit includes link rod thrust plate, feedback linkage and feedback link plate, described link rod thrust plate one end is fixed on piston rod, the link rod thrust plate the other end and feedback linkage are connected, the other end and feedback link plate that feedback linkage connects one end with respect to link rod thrust plate are articulated and connected, the other end that described feedback link plate connects one end with respect to feedback linkage is provided with setting sleeve, setting sleeve is sleeved on the input shaft of described angle displacement sensor.
2. integrated oscillating cylinder formula pneumatic actuator according to claim 1, it is characterized in that: between described feedback link plate and mounting plate, be provided with supporting component, supporting component includes strut and guide plate, guide plate is fixedly mounted on mounting plate, guide plate is provided with long strip pilot hole, described strut one end is in sliding axle is assemblied in the long strip pilot hole of guide plate and can be along the slippage of long strip pilot hole, and the described strut the other end is hinged on feedback link plate middle part.
3. according to integrated oscillating cylinder formula pneumatic actuator described in claim 1 or 2, it is characterized in that: described feedback linkage includes feedback linkage body and attaching nut, feedback linkage body shaft is equipped with outside thread shaft part to two ends, attaching nut includes internal thread pipe box portion and hinge bar portion, described feedback linkage two ends are respectively through attaching nut's hinge bar portion and link rod thrust plate, feedback link plate, and attaching nut's internal thread pipe box portion is threaded with the outside thread shaft part of feedback linkage body.
4. according to integrated oscillating cylinder formula pneumatic actuator described in claim 1 or 2, it is characterized in that: described control air source equipment also includes air lock, described air lock is connected between positioning work piece and oscillating cylinder.
5. according to integrated oscillating cylinder formula pneumatic actuator described in claim 1 or 2, it is characterized in that: in the piston rod supporting base of installing for piston rod on described front cover, be pressed with axle sleeve, axle sleeve is provided with towards one end of piston rod rear end and the spacing defining flange coordinating in piston rod supporting base end, piston rod is located in axle sleeve, between piston rod and axle sleeve, be provided with seal ring, front cover upper piston rod supporting base is provided with sealed pressing sleeve and gland towards one end of piston rod front end, sealed pressing sleeve is in gland is fixed on piston rod supporting base, described sealed pressing sleeve sectional shape is L shaped shape, sealed pressing sleeve includes the gasket portion between gland and axle sleeve, and stuffing box gland portion between piston rod and gland.
6. integrated oscillating cylinder formula pneumatic actuator according to claim 5, is characterized in that: described axle sleeve is provided with two seal rings along axial direction, and inner hole of shaft sleeve wall offers annular oil groove between two seal rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312324.4U CN203906977U (en) | 2014-06-12 | 2014-06-12 | Integral type oscillating cylinder type pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312324.4U CN203906977U (en) | 2014-06-12 | 2014-06-12 | Integral type oscillating cylinder type pneumatic actuator |
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| Publication Number | Publication Date |
|---|---|
| CN203906977U true CN203906977U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420312324.4U Expired - Fee Related CN203906977U (en) | 2014-06-12 | 2014-06-12 | Integral type oscillating cylinder type pneumatic actuator |
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| Country | Link |
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| CN (1) | CN203906977U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564902A (en) * | 2015-01-27 | 2015-04-29 | 瑞安市金邦喷淋技术有限公司 | Pneumatic scraper oscillator |
| CN110345305A (en) * | 2019-08-15 | 2019-10-18 | 北京市燃气集团有限责任公司 | A kind of track valve opening information transmitter |
| RU2763807C1 (en) * | 2020-07-27 | 2022-01-11 | Саут Чайна Брэнч оф ПайпЧайна Ко., Лтд. | Frictionless ball valve with an actuator combining a linear motor and an oscillating cylinder and containing a separable valve element and valve seat |
-
2014
- 2014-06-12 CN CN201420312324.4U patent/CN203906977U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564902A (en) * | 2015-01-27 | 2015-04-29 | 瑞安市金邦喷淋技术有限公司 | Pneumatic scraper oscillator |
| CN104564902B (en) * | 2015-01-27 | 2017-01-25 | 瑞安市金邦喷淋技术有限公司 | pneumatic scraper oscillator |
| CN110345305A (en) * | 2019-08-15 | 2019-10-18 | 北京市燃气集团有限责任公司 | A kind of track valve opening information transmitter |
| RU2763807C1 (en) * | 2020-07-27 | 2022-01-11 | Саут Чайна Брэнч оф ПайпЧайна Ко., Лтд. | Frictionless ball valve with an actuator combining a linear motor and an oscillating cylinder and containing a separable valve element and valve seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150612 |
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| EXPY | Termination of patent right or utility model |