CN2644817Y - Pneumatic rack style actuating element - Google Patents
Pneumatic rack style actuating element Download PDFInfo
- Publication number
- CN2644817Y CN2644817Y CN 03220524 CN03220524U CN2644817Y CN 2644817 Y CN2644817 Y CN 2644817Y CN 03220524 CN03220524 CN 03220524 CN 03220524 U CN03220524 U CN 03220524U CN 2644817 Y CN2644817 Y CN 2644817Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- cylinder
- piston
- actuator
- guide rod
- 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
Links
Abstract
The utility model relates to an actuator with a pneumatic pinion-and-rack type which is applied to an automatic control valve for operating the actuator in metallurgy, petroleum, chemistry, paper making, electric power and other industries, and belongs to a technical field of the automatic adjusting device. The device mainly adopts the guide bar which is arranged on the guide hole of plunger respectively, each end of the guide bar is arranged on the inner side of the guide hole of the cylinder cover, the cylinder cover is positioned on the cylinder, the gear shaft is engaged with the gear rack of the plunger, and each end of the plunger is arranged on the cylinder. The utility model has the advantages of a compact and reasonable structure, small cubage, light weight, high power output, and is characterized in that the device adopts the structure of the double guide bar structure for guiding two surfaces, making the plunger climb without being forced by the influence of pressure fluctuation and torque changing, and reaching the request of micro adjustment of angle displacement in the self-control locale; the device adopts the double guide structure, making the clearance between the seal part and the moving friction surface be in complete accordance with the whole seal surface, prolonging the period of usage of seal vulnerable parts, and saving the maintenance cost.
Description
Technical field:
The utility model relates to a kind of pneumatic rack-type actuator, be used for that stroke actuators that industries such as metallurgy, oil, chemical industry, papermaking, electric power need use drives from control regulation valve, belong to automatic control tegulatingdevice
Technical field.
Background technique:
Before the utility model is made, in prior art, pneumatic tooth bar actuator does not have the guide rod structure, in use finds, the vertical stress component that acts on the power on the piston-rack makes piston produce beat in cylinder body, when the bleed pressure trace changed, piston motion produced creeping phenomenon, made control valve produce fluctuation in process is regulated, thereby influence quality of regulation, because the beat of piston has also been accelerated the wearing and tearing of Sealing, reduced working life simultaneously.
Technology contents:
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of compact structure is provided, rationally; Can make piston in movement process, not be subjected to air pressure fluctuation and change in torque effect to produce creeping phenomenon, can realize the requirement that the on-the-spot desired angular displacement trace of automatic control is regulated; And the pneumatic rack-type actuator that can prolong sealing easily damaged parts working life.
Main solution of the present utility model is achieved in that
It mainly adopts guide rod 8,10 to be installed in respectively on piston 9, the 14 long pilot holes, guide rod 8,10 2 ends are separately fixed in the pilot hole of cylinder head 7,22, cylinder head 7,22 is fixed on the cylinder block 26, the tooth bar engagement on tooth axle 1 and the piston 9,14, and its two end is fixed on the cylinder block 26.
Compared with the prior art the utility model has the following advantages:
The utility model compact structure, reasonable; Volume is little, and is in light weight, and ouput force is big; Owing to adopted the structure of the two-sided guiding of two guide rods, make piston in movement process, not be subjected to air pressure fluctuation and change in torque and produce creeping phenomenon, can realize the requirement that the on-the-spot desired angular displacement trace of automatic control is regulated; Owing to adopted dual-guiding structure, make the gap of Sealing and kinetic friction face in full accord at whole sealing surfaces, prolonged the working life of sealing easily damaged parts greatly, saved maintenance cost.
Description of drawings:
Fig. 1 is the utility model structural representation;
Embodiment:
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The utility model piston assembly is formed the guide rod piston assembly by 9,14 and two guide rods 8,10 of two pistons.Guide rod 8,10 is installed in respectively on the piston 9,14, and lining 2,25,6,23 and O type circle 5,24,3,4 are housed on guide rod 8.Lining 13,15,11,19 and O type circle 16,17,18,12 are housed on guide rod 10.Two guide rod 8,10 2 ends are fixed in the pilot hole of cylinder head 7,22, and piston 9,14 and guide rod 8,10 can moving linearlies on short pilot hole of another one piston and cylinder head 7,22 pilot holes.Cylinder head 7,22 is by being bolted on the cylinder block 26.Tooth bar engagement on tooth axle 1 and the piston 9,14, its two end is fixed on the cylinder block 26.Single-acting actuator adds shock mount 20 and gets final product between piston 14 and cylinder head 22.Pressurized air is imported by suction port, arrives middle gas chamber by guide rod, promotes piston to cylinder two end motions, and piston is paid the drive output shaft by rack pinion and done the angular displacement campaign.
Claims (4)
1, a kind of pneumatic rack-type actuator, comprise cylinder (7), (22), cylinder block (26), piston (9), (14), tooth axle (1), it is characterized in that adopting guide rod (8), (10) to be installed in respectively on piston (9), (14) long pilot hole, guide rod (8), (10) two ends are separately fixed in the pilot hole of cylinder head (7), (22), cylinder head (7), (22) are fixed on the cylinder block (26), tooth bar engagement on tooth axle (1) and piston (9), (14), its two end is fixed on the cylinder block (26).
2, pneumatic rack-type according to claim 1 actuator, it is characterized in that described guide rod (8), (10) are installed in respectively on piston (9), (14), are equipped with lining (2), (25), (6), (23) and O type circle (5), (24), (3), (4) on guide rod (8).
3, pneumatic rack-type according to claim 1 actuator is characterized in that being equipped with on the described guide rod (10) lining (13), (15), (11), (19) and O type circle (16), (17), (18), (12).
4, pneumatic rack-type according to claim 1 actuator is characterized in that adding shock mount (20) between described piston (14) and the cylinder head (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220524 CN2644817Y (en) | 2003-03-18 | 2003-03-18 | Pneumatic rack style actuating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220524 CN2644817Y (en) | 2003-03-18 | 2003-03-18 | Pneumatic rack style actuating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644817Y true CN2644817Y (en) | 2004-09-29 |
Family
ID=34290384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220524 Expired - Lifetime CN2644817Y (en) | 2003-03-18 | 2003-03-18 | Pneumatic rack style actuating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644817Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013013398A1 (en) * | 2011-07-27 | 2013-01-31 | 易斯拓克自动化股份有限公司 | Pneumatic cylinder structure |
| CN105020462A (en) * | 2015-06-25 | 2015-11-04 | 西安航天动力试验技术研究所 | Hand valve with moment limiter |
| CN105333208A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Stainless steel pneumatic control valve |
| CN106286958A (en) * | 2015-06-12 | 2017-01-04 | 无锡市诚天诺执行器制造有限公司 | A kind of novel pneumatic actuator |
-
2003
- 2003-03-18 CN CN 03220524 patent/CN2644817Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013013398A1 (en) * | 2011-07-27 | 2013-01-31 | 易斯拓克自动化股份有限公司 | Pneumatic cylinder structure |
| CN106286958A (en) * | 2015-06-12 | 2017-01-04 | 无锡市诚天诺执行器制造有限公司 | A kind of novel pneumatic actuator |
| CN105020462A (en) * | 2015-06-25 | 2015-11-04 | 西安航天动力试验技术研究所 | Hand valve with moment limiter |
| CN105333208A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Stainless steel pneumatic control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUXI SMART AUTO-CONTROL ENGINEERING CO., LTD. Free format text: FORMER NAME: WUXIN INTELLIGENT AUTOMATIC CONTROL ENGINEERING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 214026 Jiangsu Province, Wuxi City Station District National hi tech Development Zone Economic Development Park A District No. 18 Patentee after: Wuxi Smart Auto-Control Engineering Co., Ltd. Address before: 214026 No. 18, A zone, South Station Economic Development Park, hi tech Development Zone, Jiangsu, Wuxi, China Patentee before: Wuxin Intelligent Automatic Control Engineering Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130318 Granted publication date: 20040929 |