CN104134581A - Distance adjustment tool for assembly of circuit breaker and assembly of crank arm box of circuit breaker - Google Patents

Distance adjustment tool for assembly of circuit breaker and assembly of crank arm box of circuit breaker Download PDF

Info

Publication number
CN104134581A
CN104134581A CN201310262713.0A CN201310262713A CN104134581A CN 104134581 A CN104134581 A CN 104134581A CN 201310262713 A CN201310262713 A CN 201310262713A CN 104134581 A CN104134581 A CN 104134581A
Authority
CN
China
Prior art keywords
connecting lever
restrictor bar
crankarm box
circuit breaker
adjusting
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.)
Granted
Application number
CN201310262713.0A
Other languages
Chinese (zh)
Other versions
CN104134581B (en
Inventor
李禹生
罗干平
刘雅娟
何超
李宝红
裴韶光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Original Assignee
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Pinggao Group Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201310262713.0A priority Critical patent/CN104134581B/en
Publication of CN104134581A publication Critical patent/CN104134581A/en
Application granted granted Critical
Publication of CN104134581B publication Critical patent/CN104134581B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The invention relates to a distance adjustment tool for assembly of a circuit breaker and an assembly for a crank arm box of the circuit breaker. The distance adjustment tool comprises a crank arm limitation structure which is detachably assembled on the corresponding crank arm box during use for limiting the swinging of an input crank arm, the distance adjustment tool also comprises an adjustment rod arranged on a corresponding switching brake bar in series, and an adjustment screw rod is arranged on the adjustment rod and is in threaded connection with the switching brake bar for adjusting the distance between a corresponding movable contact and a fixed contact. The distance adjustment tool for the assembly of the circuit breaker, provided by the invention, can be used for adjusting the distance between the movable contact and the fixed contact and ensuring that inclined angles of input crank arms of different phases are consistent.

Description

The Crankarm box assembling of opening apart from adjusting tool and circuit breaker for circuit breaker assembling
Technical field
The present invention relates to the Crankarm box assembling of opening apart from adjusting tool and circuit breaker for circuit breaker assembling.
Background technology
Existing circuit breaker is as Figure 1-3: comprise underframe 2, on underframe, be set side by side with three Crankarm box assemblings along left and right directions, on underframe, be also provided with three-phase and assemble corresponding one pole 1 with each Crankarm box respectively, Crankarm box assembling comprises Crankarm box 5 and rotates the power transmission shaft 3 being assemblied on Crankarm box, on power transmission shaft, be provided with input connecting lever 4 and output toggle arm 7, adjacent input connecting lever is in transmission connection by alternate pull bar 6, on output toggle arm, be connected with deciliter restrictor bar 8 that end is equipped with moving contact 9, the end of deciliter restrictor bar extends in corresponding one pole, in each one pole, be provided with the fixed contact 10 for coordinating with corresponding moving contact, an input connecting lever in three input connecting levers and the clutch end of corresponding operating mechanism are in transmission connection.When work, the transmission of power of operating mechanism is inputted connecting lever to one of them, and this input connecting lever drives other input connecting lever to rotate by alternate pull bar, thereby drives each output toggle arm to swing, and finally realizes the divide-shut brake action of each dynamic and static contact.In the time that circuit breaker assembles, need to open apart from adjusting the separating brake of dynamic and static contact, existing adjustment mode is: be arranged on underframe at three-phase one pole, the three-phase one pole separately consistency of fracture size reflects alternate asynchrony according to characteristic tester, then by the effective connecting length that regulates each alternate pull bar, the separating brake of each dynamic and static contact is opened apart from adjusting, now regulate alternate pull bar, must cause the inconsistent of each input connecting lever angle of inclination, this just will inevitably cause the on/off switch of each mutually dynamic and static contact asynchronous; The inclination deviation of the input connecting lever of three-phase, will inevitably cause the distortion of alternate pull bar and the increase of the resistance of motion simultaneously, affects the operational reliability of circuit breaker and the fatigue life of drive disk assembly.
Summary of the invention
The object of the present invention is to provide one to opening between dynamic and static contact apart from adjusting, can ensure that again each consistent circuit breaker in connecting lever inclination angle of inputting mutually assembles with opening apart from adjusting tool; The present invention also aims to provide above-mentioned the opening apart from adjusting tool of a kind of use to adjust the Crankarm box assembling of opening distance between dynamic and static contact.
In order addressing the above problem, in the present invention, to open apart from the technical scheme of adjusting tool and be:
Circuit breaker assembles with opening apart from adjusting tool, comprise for the dismantled and assembled connecting lever position limiting structure swinging with restriction input connecting lever that is assigned on corresponding Crankarm box in use, open apart from adjusting tool and also comprise for the adjusting rod on corresponding deciliter restrictor bar in tandem, on described adjusting rod, be provided with the adjusting screw(rod) for be threaded to regulate spacing between corresponding dynamic and static contact with deciliter restrictor bar.
Described connecting lever position limiting structure comprises limiting plate, the two ends of limiting plate are respectively arranged with the first installing hole and the second installing hole that axis parallels with the axis of described power transmission shaft, wherein in the first installing hole, be coated with and connect described limiting plate and the first gag lever post of inputting connecting lever, in the second installing hole, be coated with the second gag lever post, one end of the second gag lever post is the inserted terminal for being plugged in the location hole on described Crankarm box.
On the inserted terminal of described the second gag lever post, be provided with for the external screw thread of location hole spinning.
In the present invention, the technical scheme of Crankarm box assembling is:
The Crankarm box assembling of circuit breaker, comprise Crankarm box, on Crankarm box, be rotatably equipped with power transmission shaft, on power transmission shaft, be provided with input connecting lever and output toggle arm, on output toggle arm, be connected with end for deciliter restrictor bar of moving contact is installed, on described Crankarm box, be provided with the frock fit structure swinging for realize connecting lever position limiting structure restriction input connecting lever with the releasable connection of corresponding connecting lever position limiting structure, on described deciliter restrictor bar, be equipped with the adjusting screw(rod) for regulating spacing between dynamic and static contact.
Described deciliter restrictor bar comprises that the first restrictor bar of split setting closes the second restrictor bar, and wherein the first restrictor bar is connected on described output toggle arm, and the second restrictor bar is used for installing moving contact, and described adjusting screw(rod) is in tandem between described first and second restrictor bar.
Described frock fit structure comprises that the axis of location hole and the axis of power transmission shaft be arranged in parallel for the location hole of the second gag lever post plug-in mounting of connecting lever position limiting structure.
On the hole wall of described location hole, be provided with for the internal thread of the inserted terminal spinning of the second gag lever post.
Described input connecting lever is positioned the first obliquity by connecting lever position limiting structure, and in the time that input connecting lever is positioned at the first obliquity, dynamic and static contact is in firm chalaza position; The axis of location hole and the axis of power transmission shaft are positioned at same inclined plane, corresponding the second obliquity in this inclined plane, and in the time that input connecting lever is rocked to the second obliquity, dynamic and static contact is in separating brake reference position.
Beneficial effect of the present invention is: in circuit breaker assembling process, connecting lever position limiting structure is assemblied on Crankarm box, to input connecting lever is spacing, restriction input connecting lever swings connecting lever position limiting structure, then adjust the spacing between dynamic and static contact by adjusting screw(rod), make opening apart from meeting corresponding requirements of dynamic and static contact.In the time that dynamic and static clearance between open contacts is adjusted, input connecting lever can not swing, and this has just ensured respectively to input mutually connecting lever in the time being assembled together by alternate pull bar, and the inclination angle of respectively inputting connecting lever is consistent, alternate pull bar can not deform and increase the resistance of motion, has ensured the operational reliability of circuit breaker.
Brief description of the drawings
Fig. 1 is the structural representation of circuit breaker in background technology of the present invention;
Fig. 2 is the cooperation schematic diagram between each Crankarm box in Fig. 1;
Fig. 3 is the structural representation of one pole in Fig. 1;
Fig. 4 is that in the present invention, circuit breaker assembling, with opening apart from the use state diagram of an embodiment of adjusting tool, is also the use state diagram of an embodiment of Crankarm box assembling in the present invention simultaneously;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is Crankarm box assembling and the schematic diagram that coordinates of one pole.
Embodiment
The embodiment of Crankarm box assembling is as shown in Fig. 4 ~ 6: comprise Crankarm box 15, on Crankarm box, be rotatably equipped with power transmission shaft 14, on power transmission shaft, be provided with input connecting lever 13 and output toggle arm 16, on output toggle arm, be connected with a deciliter restrictor bar, deciliter restrictor bar comprises the first restrictor bar 17 and the second restrictor bar 20 that split arranges, wherein the first restrictor bar is articulated with on output toggle arm, the second restrictor bar is used for installing moving contact 21, first, between two restrictor bars, be equipped with adjusting screw(rod) 18, the two ends difference spinning of adjusting screw(rod) is in first, on two restrictor bars, can make the second restrictor bar move towards or away from the first restrictor bar by adjusting screw(rod), thereby regulate the spacing between moving contact and fixed contact 22.On Crankarm box, be provided with for the frock fit structure of connecting lever position limiting structure releasable connection, frock fit structure comprises the location hole 19 be arrangeding in parallel with power transmission shaft, on the hole wall of location hole, is provided with internal thread.Input connecting lever is positioned the first obliquity by connecting lever position limiting structure, and in the time that input connecting lever is positioned at the first obliquity, dynamic and static contact is in firm chalaza position; The axis of location hole and the axis of power transmission shaft are positioned at same inclined plane, corresponding the second obliquity in this inclined plane, and in the time that input connecting lever is rocked to the second obliquity, dynamic and static contact is in separating brake reference position.
Connecting lever position limiting structure comprises limiting plate 12, the two ends of limiting plate are respectively arranged with the first installing hole and the second installing hole, first, the axis of two installing holes and the axis of power transmission shaft be arranged in parallel, after connecting lever position limiting structure is to input connecting lever location, corresponding first obliquity of axis place plane of the axis of the first installing hole and power transmission shaft, corresponding second obliquity of axis place plane of the axis of the second installing hole and power transmission shaft, first, distance between two installing holes is corresponding with the angle that input connecting lever swings to the second obliquity by the first obliquity, first, distance between two installing holes is with moving, the distance that fixed contact moves to separating brake reference position by firm chalaza position is corresponding.In the first installing hole, be coated with for connecting limiting plate and the first gag lever post 11 of inputting connecting lever, in the second installing hole, be coated with the second gag lever post 23, one end of the second gag lever post is the inserted terminal for being plugged in location hole, is provided with and the suitable external screw thread of joining of internal thread rotation on the outer peripheral face of inserted terminal.
After one pole has assembled, by the first gag lever post, limiting plate is connected on input connecting lever, then rotating drive shaft, power transmission shaft drives input connecting lever to swing, until the second gag lever post is corresponding with the location hole on Crankarm box, by the inserted terminal spinning of the second gag lever post in location hole, now input connecting lever and be limited in the first obliquity by connecting lever position limiting structure, corresponding being of the first obliquity, the firm chalaza position of fixed contact, just chalaza position refers to moving, fixed contact has just started the position of closing a floodgate, then by adjusting effective connecting length of adjusting screw(rod), thereby make, fixed contact reaches the firm chalaza position of setting, moving, fixed contact reaches behind firm chalaza position, remove first, two gag lever posts and limiting plate.Connecting lever position limiting structure and adjusting screw(rod) have formed to be opened apart from adjusting tool, but adjusting screw(rod) is out the part apart from adjusting tool, a part of assembling as Crankarm box again, in the timing of circuit breaker integral installation, above-mentioned each phase one pole of opening after having assembled apart from adjusting tool will be used, Crankarm box assembling is lifted on underframe, use the first gag lever post and alternate pull bar that adjacent two input connecting levers are coupled together, rotate subsequently the power transmission shaft in any one Crankarm box, until each the first gag lever post is corresponding with the location hole on corresponding Crankarm box respectively, on each the first gag lever post, be also provided with external screw thread, each the first gag lever post is distinguished to spinning in corresponding location hole, because the second obliquity is with moving, the separating brake reference position of fixed contact is corresponding, so in the time that input connecting lever is rocked to the second obliquity, moving, fixed contact reaches the separating brake reference position of design, now on any one input connecting lever, connect the shackle rod of operating mechanism, again by the first gag lever post by screwing out in corresponding location hole, complete the assembling of circuit breaker, the first obliquity is with moving, the firm closing position of fixed contact is corresponding, the second obliquity is with moving, the basis point gate position correspondence of fixed contact, these are conducive to install, the simplification of debugging step, certainly can be mutually not corresponding between them yet, such as in the second obliquity not with moving, when the basis point gate position of fixed contact is corresponding, can use spanner rotating drive shaft until input connecting lever turns to the angle corresponding with basis point gate position.
In other embodiment of this Crankarm box assembling: deciliter restrictor bar can be also an overall structure, and now adjusting screw(rod) can be arranged at the end of deciliter restrictor bar; Frock fit structure can also carry out appropriate change according to the difference of connecting lever position limiting structure.
Open embodiment apart from adjusting tool as shown in Fig. 4 ~ 6: open apart from the concrete structure of adjusting tool identically with the start adjusting tool described in above-mentioned Crankarm box assembling embodiment, be not described in detail in this.Originally opening in other embodiment of adjusting tool: connecting lever position limiting structure can also be a bolt, by install bolt on input connecting lever and Crankarm box, limit the swing of inputting connecting lever; Certainly connecting lever position limiting structure can also be the block that is arranged at the input circumferential both sides of connecting lever, and block is fixed on Crankarm box by removable structure, thus the swing of restriction input connecting lever; Connecting lever position limiting structure can also be made up of the anchor ear being arranged between Crankarm box and power transmission shaft.

Claims (8)

1. circuit breaker assembles with opening apart from adjusting tool, it is characterized in that: comprise for the dismantled and assembled connecting lever position limiting structure swinging with restriction input connecting lever that is assigned on corresponding Crankarm box in use, open apart from adjusting tool and also comprise for the adjusting rod on corresponding deciliter restrictor bar in tandem, on described adjusting rod, be provided with the adjusting screw(rod) for be threaded to regulate spacing between corresponding dynamic and static contact with deciliter restrictor bar.
2. according to claim 1 opening apart from adjusting tool, it is characterized in that: described connecting lever position limiting structure comprises limiting plate, the two ends of limiting plate are respectively arranged with the first installing hole and the second installing hole that axis parallels with the axis of described power transmission shaft, wherein in the first installing hole, be coated with and connect described limiting plate and the first gag lever post of inputting connecting lever, in the second installing hole, be coated with the second gag lever post, one end of the second gag lever post is the inserted terminal for being plugged in the location hole on described Crankarm box.
3. according to claim 2 opening apart from adjusting tool, is characterized in that: on the inserted terminal of described the second gag lever post, be provided with for the external screw thread of location hole spinning.
4. the Crankarm box of circuit breaker assembling, comprise Crankarm box, on Crankarm box, be rotatably equipped with power transmission shaft, on power transmission shaft, be provided with input connecting lever and output toggle arm, on output toggle arm, be connected with end for deciliter restrictor bar of moving contact is installed, it is characterized in that: on described Crankarm box, be provided with the frock fit structure swinging for realize connecting lever position limiting structure restriction input connecting lever with the releasable connection of corresponding connecting lever position limiting structure, on described deciliter restrictor bar, be equipped with the adjusting screw(rod) for regulating spacing between dynamic and static contact.
5. Crankarm box assembling according to claim 4, it is characterized in that: described deciliter restrictor bar comprises that the first restrictor bar of split setting closes the second restrictor bar, wherein the first restrictor bar is connected on described output toggle arm, the second restrictor bar is used for installing moving contact, and described adjusting screw(rod) is in tandem between described first and second restrictor bar.
6. according to the Crankarm box assembling described in claim 4 or 5, it is characterized in that: described frock fit structure comprises that the axis of location hole and the axis of power transmission shaft be arranged in parallel for the location hole of the second gag lever post plug-in mounting of connecting lever position limiting structure.
7. Crankarm box according to claim 6 assembling, is characterized in that: on the hole wall of described location hole, be provided with for the internal thread of the inserted terminal spinning of the second gag lever post.
8. Crankarm box assembling according to claim 6, is characterized in that: described input connecting lever is positioned the first obliquity by connecting lever position limiting structure, and in the time that input connecting lever is positioned at the first obliquity, dynamic and static contact is in firm chalaza position; The axis of location hole and the axis of power transmission shaft are positioned at same inclined plane, corresponding the second obliquity in this inclined plane, and in the time that input connecting lever is rocked to the second obliquity, dynamic and static contact is in separating brake reference position.
CN201310262713.0A 2013-06-27 2013-06-27 The circuit breaker assembling Crankarm box assembling of opening apart from adjusting tool and circuit breaker Expired - Fee Related CN104134581B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310262713.0A CN104134581B (en) 2013-06-27 2013-06-27 The circuit breaker assembling Crankarm box assembling of opening apart from adjusting tool and circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310262713.0A CN104134581B (en) 2013-06-27 2013-06-27 The circuit breaker assembling Crankarm box assembling of opening apart from adjusting tool and circuit breaker

Publications (2)

Publication Number Publication Date
CN104134581A true CN104134581A (en) 2014-11-05
CN104134581B CN104134581B (en) 2016-03-16

Family

ID=51807221

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310262713.0A Expired - Fee Related CN104134581B (en) 2013-06-27 2013-06-27 The circuit breaker assembling Crankarm box assembling of opening apart from adjusting tool and circuit breaker

Country Status (1)

Country Link
CN (1) CN104134581B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332361A (en) * 2014-10-15 2015-02-04 平高集团有限公司 Circuit breaker enabling synchronism debugging without disassembly
CN105070551A (en) * 2015-08-19 2015-11-18 山东泰开高压开关有限公司 Switching limiting adjustment device for high-voltage switch
CN105762001A (en) * 2016-04-01 2016-07-13 平高集团有限公司 Connecting lever box, connecting lever box connecting and assembling structure and breaker
CN106328449A (en) * 2016-08-31 2017-01-11 浙江华仪电器科技有限公司 Phase column synchronism adjusting method of sulfur hexafluoride breaker
CN109166767A (en) * 2018-08-10 2019-01-08 国网福建省电力有限公司检修分公司 The rigid chalaza precise positioning debugging apparatus of one-touch breaker and application method
CN110211829A (en) * 2019-05-16 2019-09-06 平高集团有限公司 Crankarm box assembly tooling
CN112951647A (en) * 2019-11-26 2021-06-11 天津平高智能电气有限公司 Aging and insulation testing device for vacuum arc-extinguishing chamber
CN113506703A (en) * 2021-05-26 2021-10-15 平高集团有限公司 Three-phase transmission mechanism and porcelain knob type circuit breaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201197054Y (en) * 2008-04-28 2009-02-18 河南平高电气股份有限公司 High voltage opening type combined electrical apparatus
CN201315295Y (en) * 2008-11-14 2009-09-23 平高集团有限公司 Device convenient for debugging mechanical characteristics of circuit breaker
CN102479644A (en) * 2010-11-25 2012-05-30 河南省电力公司开封供电公司 Modification method of high-voltage breaker
CN102751146A (en) * 2012-06-27 2012-10-24 平高集团有限公司 Debugging device of route and opening range size of circuit breaker
CN203025320U (en) * 2012-11-08 2013-06-26 成都科星电力电器有限公司 Transmission shaft debugging structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201197054Y (en) * 2008-04-28 2009-02-18 河南平高电气股份有限公司 High voltage opening type combined electrical apparatus
CN201315295Y (en) * 2008-11-14 2009-09-23 平高集团有限公司 Device convenient for debugging mechanical characteristics of circuit breaker
CN102479644A (en) * 2010-11-25 2012-05-30 河南省电力公司开封供电公司 Modification method of high-voltage breaker
CN102751146A (en) * 2012-06-27 2012-10-24 平高集团有限公司 Debugging device of route and opening range size of circuit breaker
CN203025320U (en) * 2012-11-08 2013-06-26 成都科星电力电器有限公司 Transmission shaft debugging structure

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332361A (en) * 2014-10-15 2015-02-04 平高集团有限公司 Circuit breaker enabling synchronism debugging without disassembly
CN104332361B (en) * 2014-10-15 2017-06-13 平高集团有限公司 The breaker of the debugging synchronism that can not disintegrate
CN105070551A (en) * 2015-08-19 2015-11-18 山东泰开高压开关有限公司 Switching limiting adjustment device for high-voltage switch
CN105762001A (en) * 2016-04-01 2016-07-13 平高集团有限公司 Connecting lever box, connecting lever box connecting and assembling structure and breaker
CN105762001B (en) * 2016-04-01 2018-06-08 国家电网公司 Crankarm box, Crankarm box are linked and packed structure and breaker
CN106328449A (en) * 2016-08-31 2017-01-11 浙江华仪电器科技有限公司 Phase column synchronism adjusting method of sulfur hexafluoride breaker
CN109166767A (en) * 2018-08-10 2019-01-08 国网福建省电力有限公司检修分公司 The rigid chalaza precise positioning debugging apparatus of one-touch breaker and application method
CN109166767B (en) * 2018-08-10 2020-03-27 国网福建省电力有限公司检修分公司 One-key type circuit breaker rigid joint accurate positioning debugging device and using method
CN110211829A (en) * 2019-05-16 2019-09-06 平高集团有限公司 Crankarm box assembly tooling
CN112951647A (en) * 2019-11-26 2021-06-11 天津平高智能电气有限公司 Aging and insulation testing device for vacuum arc-extinguishing chamber
CN112951647B (en) * 2019-11-26 2023-03-10 天津平高智能电气有限公司 Aging and insulation testing device for vacuum arc extinguish chamber
CN113506703A (en) * 2021-05-26 2021-10-15 平高集团有限公司 Three-phase transmission mechanism and porcelain knob type circuit breaker
CN113506703B (en) * 2021-05-26 2023-08-08 平高集团有限公司 Three-phase transmission mechanism and knob insulator type circuit breaker

Also Published As

Publication number Publication date
CN104134581B (en) 2016-03-16

Similar Documents

Publication Publication Date Title
CN104134581B (en) The circuit breaker assembling Crankarm box assembling of opening apart from adjusting tool and circuit breaker
CN106926266A (en) A kind of rope drives the mechanical clamping device of linkage
CN105206468A (en) Circuit breaker capable of conveniently adjusting opening range and contacting travel
CN108376627A (en) A kind of three-phase transmission mechanism and the breaker using the three-phase transmission mechanism
CN110211848B (en) Switch electric appliance
CN111105940B (en) Electric spring mechanism and grounding switch
CN205159191U (en) Can conveniently adjust circuit breaker of opening distance and contacting travel
CN205194604U (en) Circuit breaker and fishing box thereof
CN103475088B (en) A kind of double power supply converting switch
CN102778803B (en) Camera shutter structure
CN203562363U (en) Synchronizer for opening-closing signals of electric operating mechanism
CN105390347B (en) A kind of breaker and its operation device
CN103681081A (en) Opening-closing signal synchronizer for electric operating mechanism
CN203690193U (en) Knife-switch self-locking type outdoor AC three-phase linked high-voltage disconnector
CN104979127B (en) A kind of three-phase ganged transmission device of high-voltage switch gear
CN202221541U (en) Revolving drum type cam time program controller
CN104514687A (en) Blade pitch controller for small-scale wind power generation system
CN204371816U (en) Fluid-transmission servo feedback mechanism
CN202796701U (en) Connecting rod transmission device of gas insulated switchgear (GIS) disconnecting switch breaking-closing action
CN204067169U (en) The transmission device of GIS circuit breaker operation mechanism
CN102904216B (en) Motor protection device and motor using same
CN205264546U (en) Circuit breaker control motor mechanical interlocking device that is just reversing
CN206344168U (en) A kind of joint axle construction of assistance robot
CN202616155U (en) N-phase first-integrating later-separating correcting mechanism for four-stage modularized outer casing breaker
CN203254346U (en) Nut structure capable of being quickly detached

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160316

Termination date: 20210627