CN202165681U - Linear thrustor for actuator - Google Patents
Linear thrustor for actuator Download PDFInfo
- Publication number
- CN202165681U CN202165681U CN2011202355556U CN201120235555U CN202165681U CN 202165681 U CN202165681 U CN 202165681U CN 2011202355556 U CN2011202355556 U CN 2011202355556U CN 201120235555 U CN201120235555 U CN 201120235555U CN 202165681 U CN202165681 U CN 202165681U
- Authority
- CN
- China
- Prior art keywords
- force moment
- linear
- axle sleeve
- thrust device
- moment protection
- 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
- 238000012856 packing Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
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Abstract
The utility model belongs to a linear thrustor for an actuator, which comprises a linear thrustor housing, an input shaft, a lead screw, a moment protection shaft sleeve, a sliding block, a spring and an output shaft, and is characterized in that the output end of the actuator drives the input shaft of the linear thrustor to rotate via a key, wherein inner threads formed on the input shaft of the liner thrustor are meshed with the lead screw; the lead screw is mounted on the moment protection shaft sleeve; the sliding block is mounted on the moment protection shaft sleeve, and performs linear motion along the linear thrustor housing; the output shaft drives a valve to perform the linear motion; and when the valve generates moment during the opening/closing, the output shaft protects the moment by compressing the spring.
Description
Technical field
The utility model belongs to valve actuator, particularly a kind of final controlling element linear thrust device.
Background technique
The final controlling element linear thrust device of present domestic use is the thruster for copying Europe to make mostly, its complex structure, and difficulty of processing is big, and the quality of fit of requirement is also quite high, causes cost too high, and reject rate is high.Do not have the force moment protection function in the structure of its design, cause when moment is excessive, damaging valve or transmission shaft.
Summary of the invention
The objective of the invention is to overcome above technical deficiency, a kind of final controlling element linear thrust device is provided, the implementation structure advantages of simple, with low cost and have a brand-new linear thrust device of force moment protection measure.
The technological scheme that the utility model technical solution problem is adopted is: a kind of final controlling element linear thrust device comprises linear thrust device housing, input shaft, leading screw, force moment protection axle sleeve, slide block, spring and output shaft.It is characterized in that the final controlling element output terminal drives the rotation of linear thrust device input shaft by key; The internal thread of the input shaft of linear thrust device is meshed with leading screw, and leading screw is installed on the force moment protection axle sleeve, on the force moment protection axle sleeve slide block is housed; Make it do straight line motion along linear thrust device housing; Drive valve by output shaft output and do straight line motion, when valve produced moment in open/close process, then output shaft plays pressure spring the effect of force moment protection.
The beneficial effect of the utility model is: this final controlling element linear thrust device is simple in structure, component seldom and difficulty of processing low, very high cost performance is arranged, and has high reliability, have the force moment protection function.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the sectional front view of final controlling element linear thrust device.
1-fixing bolt among the figure; 2-linear thrust device housing; The 3-socket head screw; 4-gland 1; The 5-spring washer; 6-oil sealing 1; 7-pin 1; The 8-lubricating cup; The 9-thrust-bearing; The 10-shaft block ring; 11-oil sealing 2; The 12-seal ring; 13-gland 2; The 14-key; 15-pin 2; The 16-input shaft; The 17-leading screw; The 18-slide block; 19-force moment protection axle sleeve; The 20-nut; The 21-spring support; The 22-spring; The 23-spring capping; The 24-output shaft.
Embodiment
Embodiment, with reference to accompanying drawing, a kind of final controlling element linear thrust device; Comprise linear thrust device housing (2), input shaft (16), leading screw (17), force moment protection axle sleeve (19), slide block (18), spring (22) and output shaft (24), be characterized in that input shaft (16) outside is equipped with 2 by the fixing thrust-bearings (9) of shaft block ring (10), internal whorl and leading screw (17) mesh; Screw-internal thread fit on outside thread on the leading screw (17) and the force moment protection axle sleeve (19) is also fixing with pin 1 (7); Pack into spring support (21) and lock of the shaft shoulder place of output shaft (24) spring (22) of packing into, upper end with 2 nuts (20), and together be installed on the interior platform of force moment protection axle sleeve (19); Screw-internal thread fit in outside thread on the spring capping (23) and the force moment protection axle sleeve (19) is used for fixing output shaft (24); The slide block (18) of packing in the outside square groove of force moment protection axle sleeve (19) wholely is installed in the linear thrust device housing (2) through the inner track of slide block (18) property thruster housing (2) along the line, and is located by interior platform; Oil sealing 2 (11) is installed on the input shaft (16); And 2 (15) be fixed on the linear thrust device housing (2) through pin by gland 2 (13), sealing with seal ring (12), oil sealing 1 (6) is fixed on linear thrust device housing (2) and the force moment protection axle sleeve (19); Compress and be fixed on the linear thrust device housing (2) through socket head screw (3) by gland 1 (4); 1 lubricating cup (8) is housed on the linear thrust device housing (2), and input shaft (16) cooperates with the output shaft of final controlling element through key (14), and fixing by fixing bolt (1); Output shaft (24) matches with the input shaft of valve, and fixing by fixing bolt (1).
This final controlling element linear thrust device mainly is by input shaft (16) and leading screw (17) engagement, and utilizes the track of slide block (18) property thruster housing along the line to do linear movement, and circular movement is transformed into linear motion, adds spring (22) as force moment protection at output terminal.This thruster has simple in structure, and is cheap, superior performance, and reliability is high, characteristics such as band force moment protection.
Claims (1)
1. final controlling element linear thrust device; Comprise linear thrust device housing (2), input shaft (16), leading screw (17), force moment protection axle sleeve (19), slide block (18), spring (22) and output shaft (24); It is characterized in that the final controlling element output terminal drives linear thrust device input shaft (16) rotation by key (14); Input shaft (16) is through internal whorl and leading screw (17) engagement, and leading screw (17) is fixed on the force moment protection axle sleeve (19) through pin 1 (7), and force moment protection axle sleeve (19) is gone up slide block (18) is installed; The inner track of slide block (18) property thruster housing (2) along the line is installed in the linear thrust device housing (2); And by interior platform location, the shaft shoulder place of output shaft (24) spring (22) of packing into, pack into spring support (21) and locking of upper end with 2 nuts (20); And together be installed on the interior platform of force moment protection axle sleeve (19), the screw-internal thread fit in outside thread on the spring capping (23) and the force moment protection axle sleeve (19) is used for fixing output shaft (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202355556U CN202165681U (en) | 2011-07-04 | 2011-07-04 | Linear thrustor for actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202355556U CN202165681U (en) | 2011-07-04 | 2011-07-04 | Linear thrustor for actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165681U true CN202165681U (en) | 2012-03-14 |
Family
ID=45801506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202355556U Expired - Fee Related CN202165681U (en) | 2011-07-04 | 2011-07-04 | Linear thrustor for actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883789A (en) * | 2014-03-26 | 2014-06-25 | 上海奇忠控制设备有限公司 | Linear thruster |
-
2011
- 2011-07-04 CN CN2011202355556U patent/CN202165681U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883789A (en) * | 2014-03-26 | 2014-06-25 | 上海奇忠控制设备有限公司 | Linear thruster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CIMM AUTOMATION ENGINEERING TECHNOLOGY (DALIAN) CO Free format text: FORMER OWNER: WANG YUANMING Effective date: 20130424 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130424 Address after: 116001, No. 71, Renmin Road, Zhongshan District, Liaoning, Dalian, 10 Patentee after: Sim Automation Engineering Technology (Dalian) Co., Ltd. Address before: 116001, Cheng Cheng, building 71, Renmin Road, Zhongshan District, Liaoning, Dalian, 10F Patentee before: Wang Yuanming |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20150704 |
|
| EXPY | Termination of patent right or utility model |