CN101865069A - Locking device for servomotor - Google Patents
Locking device for servomotor Download PDFInfo
- Publication number
- CN101865069A CN101865069A CN201010202305A CN201010202305A CN101865069A CN 101865069 A CN101865069 A CN 101865069A CN 201010202305 A CN201010202305 A CN 201010202305A CN 201010202305 A CN201010202305 A CN 201010202305A CN 101865069 A CN101865069 A CN 101865069A
- Authority
- CN
- China
- Prior art keywords
- nut
- piston rod
- servomotor
- locking device
- gasket
- 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.)
- Pending
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Actuator (AREA)
Abstract
The invention relates to a locking device, in particular to a locking device for a servomotor, which is used for fixing a pin shaft of the servomotor at a piston rod end and comprises a gasket and a nut, wherein the gasket and the nut are sheathed on the flexible end of the piston rod of the servomotor, the nut is in threaded connection with the piston rod, at least two bolts in threaded connection with the nut are distributed on the circumference of the nut, the end surface of the nut is tightly pressed on the end surface of the gasket, and the gasket is made of high speed steel after quenching treatment. The invention solves the technical problem of difficult control of tightening torque of a locking nut which is used for connecting the pin shaft and the piston rod due to large structure size of the piston diameter, locking nut and pin shaft of the existing servomotor, can accurately control the tightening torque and ensures that the pin shaft are reliably fixed on the piston rod.
Description
Technical field
The present invention relates to a kind of locking device, particularly a kind of locking device for servomotor that is used for the bearing pin of servomotor is fixed on tailpiece of the piston rod.
Background technique
Servomotor is mainly used in and drives hydro-turbo generator set water guide mechanism or operation butterfly valve etc., its bearing pin is fixed on the flexible end of piston rod, bearing pin is fixedlyed connected by locking nut with piston rod, for guaranteeing that bearing pin is fixed on the piston rod reliably, must guarantee that screw pair has certain friction torque, this friction torque is that screw pair has produced pretightening force and obtained after applying screw-down torque when connecting.Apply screw-down torque and normally utilize special-purpose assembly tool.As torque-indicating wrencg, moment of torsion wrench, electronic, pneumatic wrench etc.Because the physical dimension of diameter of piston rod, locking nut and the bearing pin of servomotor is all very big, does not have the special tool of corresponding size to apply screw-down torque, that is to say that its screw-down torque is difficult to control.
Summary of the invention
The technical problem to be solved in the present invention is: solve existing servomotor because the physical dimension of diameter of piston rod, locking nut and bearing pin is big, and cause bearing pin to be connected the unmanageable technical problem of screw-down torque of using locking nut with piston rod, the invention provides a kind of locking device for servomotor, it can accurately control screw-down torque, guarantees that bearing pin is fixed on the piston rod reliably.
The technical solution adopted for the present invention to solve the technical problems is: a kind of locking device for servomotor, be used for bearing pin is fixed on the flexible end of piston rod, the packing ring and the nut that comprise the flexible end of piston rod that is sleeved on servomotor, nut is connected with piston rod thread, be evenly distributed at least two bolts that are connected with nut thread on the nut, the end face of bolt presses the end face of packing ring, and the packing ring material is the high speed steel through Quenching Treatment.
The invention has the beneficial effects as follows, locking device for servomotor of the present invention, the mode of employing uniform bolt on the nut circumference is disperseed screw-down torque, reaches the purpose that screw-down torque can be controlled, and guarantees reliability and tightness that bearing pin is connected with piston rod.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of locking device for servomotor of the present invention.
Fig. 2 is an I place partial enlarged drawing among Fig. 1.
Among the figure: 1. bearing pin, 2. piston rod, 3. packing ring, 4. nut, 5. bolt.
Embodiment
The specific embodiment of locking device for servomotor of the present invention as depicted in figs. 1 and 2, this locking device for servomotor is mainly used in the flexible end that bearing pin 1 is fixed on piston rod 2, it comprises the packing ring 3 and the nut 4 of the flexible end of the piston rod 2 that is sleeved on servomotor, nut 4 is threaded with piston rod 2, be evenly distributed in four bolts 5 that are threaded with nut 4 on the nut 4, the end face of bolt 5 presses the end face of packing ring 3, and packing ring 3 materials are the high speed steel through Quenching Treatment.
Claims (1)
1. locking device for servomotor, be used for bearing pin (1) is fixed on the flexible end of piston rod (2), it is characterized in that: the packing ring (3) and the nut (4) that comprise the flexible end of the piston rod (2) that is sleeved on servomotor, nut (4) is threaded with piston rod (2), be evenly distributed at least two bolts (5) that are threaded with nut (4) on the nut (4), the end face of bolt (5) presses the end face of packing ring (3), and packing ring (3) material is the high speed steel through Quenching Treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010202305A CN101865069A (en) | 2010-06-09 | 2010-06-09 | Locking device for servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010202305A CN101865069A (en) | 2010-06-09 | 2010-06-09 | Locking device for servomotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101865069A true CN101865069A (en) | 2010-10-20 |
Family
ID=42956946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010202305A Pending CN101865069A (en) | 2010-06-09 | 2010-06-09 | Locking device for servomotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865069A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509228A (en) * | 2019-09-10 | 2019-11-29 | 云南拓远科技有限公司 | A kind of hydroelectric power plant's servomotor piston rod clamp device and its application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505612Y (en) * | 2001-09-12 | 2002-08-14 | 郭中枹 | External servomotor for water pump and turbine impeller |
| JP2003227450A (en) * | 2002-02-04 | 2003-08-15 | Mitsubishi Heavy Ind Ltd | Runner vane driving device, guide vane driving device, and movable-blade water turbine |
| CN200946714Y (en) * | 2006-09-15 | 2007-09-12 | 四川东风电机厂有限公司 | Water inlet ball valve servomotor of water turbine |
| CN101265872A (en) * | 2008-05-07 | 2008-09-17 | 天津市天发重型水电设备制造有限公司 | Hydroturbine possessing reel type valve servo |
| CN201705527U (en) * | 2010-06-09 | 2011-01-12 | 常州液压成套设备厂有限公司 | Servomotor locking device |
-
2010
- 2010-06-09 CN CN201010202305A patent/CN101865069A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505612Y (en) * | 2001-09-12 | 2002-08-14 | 郭中枹 | External servomotor for water pump and turbine impeller |
| JP2003227450A (en) * | 2002-02-04 | 2003-08-15 | Mitsubishi Heavy Ind Ltd | Runner vane driving device, guide vane driving device, and movable-blade water turbine |
| CN200946714Y (en) * | 2006-09-15 | 2007-09-12 | 四川东风电机厂有限公司 | Water inlet ball valve servomotor of water turbine |
| CN101265872A (en) * | 2008-05-07 | 2008-09-17 | 天津市天发重型水电设备制造有限公司 | Hydroturbine possessing reel type valve servo |
| CN201705527U (en) * | 2010-06-09 | 2011-01-12 | 常州液压成套设备厂有限公司 | Servomotor locking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509228A (en) * | 2019-09-10 | 2019-11-29 | 云南拓远科技有限公司 | A kind of hydroelectric power plant's servomotor piston rod clamp device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101020 |