CN103302629A - PT (potential transformer) fuse dismounting device - Google Patents
PT (potential transformer) fuse dismounting device Download PDFInfo
- Publication number
- CN103302629A CN103302629A CN2013102191865A CN201310219186A CN103302629A CN 103302629 A CN103302629 A CN 103302629A CN 2013102191865 A CN2013102191865 A CN 2013102191865A CN 201310219186 A CN201310219186 A CN 201310219186A CN 103302629 A CN103302629 A CN 103302629A
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- cutting ferrule
- rod
- clip
- connecting rod
- welded
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Abstract
The invention discloses a PT (potential transformer) fuse dismounting device which comprises a connecting frame formed in a way that a horizontal rod and a vertical rod vertical to each other are integrally welded, wherein the outer end of the horizontal rod is in threaded connection with an adjusting screw rod parallel to the vertical rod; a right clamping sleeve is fixedly welded in a position corresponding to the lower part of the horizontal rod at the lower end of the vertical rod; the right clamping sleeve comprises a vertical connecting rod welded at the lower end of the vertical rod and a right clamping hoop connected to the end part of the connecting rod and positioned below the horizontal rod; the right clamping hoop adopts an arc structure for clamping a groove in the pipe wall of an insulation sleeve pipe in a matched way; a left clamping sleeve is movably connected onto the right clamping sleeve; and the left clamping sleeve comprises a connecting rod parallel to that of the right clamping sleeve and a left clamping hoop which has the same radian as the right clamping hoop and adopts the arc structure. The PT fuse dismounting device has the characteristics of convenience for one-person operation, short operation time and high replacement efficiency, and is suitable for dismounting insulation sleeve pipes with different pipe diameters.
Description
Technical field
The present invention relates to keep in repair tool using in a kind of power industry, specifically a kind of instrument of dismounting PT insurance.
Background technology
Inductance type voltage transformer (claiming again PT) is the visual plant of transformer station, and it adopts electromagnetic induction principle that the high voltage of electrical network main equipment is converted to low-voltage.For preventing that the PT inductance coil from causing body to damage when internal fault occurring and fault enlarges, need to high pressure P T insurance be set at the PT mains side.The PT insurance is in an insulating sleeve endoporus protective tube to be set, and the tube wall of insulating sleeve presents the annular projection of a plurality of rules, forms the multiple tracks groove between the projection.The electric conductor place at protective tube two ends is provided with spring, and the end cap of pressing spring is set at the two ends of insulating sleeve.In order better to be connected with end cap, respectively there is the together flange identical with insulating sleeve tube wall bulge-structure at the two ends of insulating sleeve, the inboard of flange is provided with catch, end cap is fastened on the outside of flange, be bolted between catch and the end cap, thereby end cap is fixed on the two ends of insulating sleeve, and protective tube is compressed.Center at the lateral surface of end cap also is provided with boss with holes, is used for connecting electric wire.
At present electric power system 35kV equipment is still take outwork as main, and 35kV equipment PT protective tube fusing phenomenon happens occasionally, thereby to change protective tube still be commonplacely to work frequently.In the process of in the past changing protective tube, insulating sleeve vertically is installed on the electric pole, and between end cap and the catch spring is arranged, therefore need at least 2 people to carry out dismounting, people's both hands are held end cap and catch with a firm grip to keep invariant position between the two, another person is by the bolt between screwdriver dismounting catch and the end cap, and there is following problem in it: needs many people carry out; The caliber of insulating sleeve is not quite similar, and needs different dismantling devices; Change one and insure mutually approximately 45～60 minutes consuming time; The 35kV of part transformer station voltage transformer framework can't be born many people's weight; Part transformer substation framework area is less, and the staff can't stand firm; Rely on the strength of staff's hand to overcome insurance top cover elastic force, be not easy the maintenance dynamics even, cause the screw unbalance stress, cause mounting process not high, might cause insurance loose contact, insulating sleeve to enter the problems such as rainwater.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of one man operation of being convenient to, the operating time is short, replacing efficient is high, are applicable to the PT insurance replacer of different insulative sleeve pipe caliber.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
PT insures replacer, comprises the link that is welded as a whole by mutually perpendicular horizon bar and vertical rod, the outer end of the described horizon bar adjusting screw(rod) parallel with vertical rod that be threaded; The right cutting ferrule of the fixing welding in the below of the corresponding horizon bar in described vertical rod lower end, right cutting ferrule comprise the lower end that is welded on vertical rod vertical links, be connected to the right clip that is positioned at horizon bar below of interlinking lever end, right clip is for cooperating the arcuate structure that clamps insulating sleeve tube wall groove; Be flexibly connected a left cutting ferrule on the right cutting ferrule, left cutting ferrule comprises the connecting rod parallel with the connecting rod of right cutting ferrule and the left clip of the arcuate structure that equates with right clip radian;
The middle part of the connecting rod of described left cutting ferrule is fixedly welded with sleeve, and tie down screw is set in the sleeve, and the position welding of the corresponding sleeve in the middle part of the connecting rod of right cutting ferrule locks the locking nut of screw rod.
Improvement of the present invention is: the outer end of described adjusting screw(rod) and tie down screw is welded with the cross bar handle.
Further improvement of the present invention is: the fixing welding in the outer end of described horizon bar cooperates the adjusting nut of adjusting screw(rod).
Further improvement of the present invention is: the clip inboard of described right cutting ferrule and left cutting ferrule arranges some felt pads.
Further improvement of the present invention is: be welded with the positioner that cooperates with left cutting ferrule on the connecting rod of described right cutting ferrule, positioner comprises the up and down both sides of two connecting rods that are vertically welded in respectively right cutting ferrule and hard metal bar or the sheet metal parallel with horizon bar.
Further improvement of the present invention is: also comprise the clip be used to the connecting rod of the connecting rod that clamps right cutting ferrule and left cutting ferrule.
The another kind of improvement of the present invention is: the clip of described left cutting ferrule and right cutting ferrule is circular semicircular arc structure for fastening mutually.
Because the technological progress of having adopted technique scheme, the present invention to obtain is:
It is parallel with vertical rod by horizon bar that the present invention establishes threaded adjusting screw(rod) screw thread, because vertical rod is vertical with horizon bar, then adjusting screw(rod) is vertical with horizon bar, the active force that adjusting screw(rod) acts on the end cap of insulating sleeve is vertical single active force, therefore so that the screw between catch and end cap is stressed evenly, mounting process is high.Right cutting ferrule and left cutting ferrule are flexibly connected, and by regulating the tightness of right cutting ferrule and left cutting ferrule, so that left cutting ferrule and right cutting ferrule well act on the groove of insulating sleeve tube wall, clamp insulating sleeve effective.By the cooperation of adjusting screw(rod), left cutting ferrule and right cutting ferrule, the screw between installation or removal catch and end cap, simple and convenient, single can finishing.
The present invention is provided with the sleeve that passes the connecting rod middle part that is welded on left cutting ferrule and the tie down screw that matches with the locking nut at the connecting rod middle part that is welded on right cutting ferrule, distance between the right cutting ferrule of free adjustment and left cutting ferrule is applicable to the dismounting of the insulating sleeve of different tube diameters.And because the structure of left clip and right clip is arcuate structure, be the dismounting of the insulating sleeve that is applicable to different tube diameters, regulate between right cutting ferrule and left cutting ferrule apart from the time, it is better that the clip of arcuate structure and the groove of insulating sleeve contact effect.
The connecting rod of right cutting ferrule of the present invention is welded with positioner, so that cover is when being subject to tensile force as for the right cutting ferrule of insulating sleeve tube wall groove and left cutting ferrule, right cutting ferrule and left cutting ferrule are in the same face all the time, so that left cutting ferrule and right cutting ferrule can because unbalance stress is out of shape, not affect repeatedly use of the present invention.
Adjusting screw(rod) of the present invention and tie down screw outer end are welded with the whippletree handle, only need less rotatable the tightening of power when it uses, and be time saving and energy saving.
The clip inboard of left cutting ferrule of the present invention and right cutting ferrule arranges felt pad, so that left cutting ferrule and right cutting ferrule be when acting on groove on the insulating sleeve tube wall, and can the Damage to insulation sleeve pipe.
The present invention is provided with the clip be used to the connecting rod of the connecting rod that clamps right cutting ferrule and left cutting ferrule, when the arcuate structure of left cutting ferrule and right cutting ferrule is installed on insulating sleeve tube wall groove, clip and tie down screw double action are in cutting ferrule, and cutting ferrule better acts on insulating sleeve, the chucking good fixing effect.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of another embodiment of the invention.
Wherein, 1, adjusting screw(rod), 2, adjusting nut, 3, link, 31, vertical rod, 32, horizon bar, 4, right cutting ferrule, 5, positioner, 6, locking nut, 7 sleeves, 8, tie down screw, 9, left cutting ferrule, 10, clip.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further details:
Embodiment 1
PT insures replacer, and structural representation comprises the link 3 that is welded as a whole by vertical rod 31 and horizon bar 32 as shown in Figure 1, and horizon bar 32 is orthogonal with vertical rod 31.The outer end of described horizon bar 32 arranges an adjusting screw(rod) 1, and adjusting screw(rod) is threaded with horizon bar, and adjusting screw(rod) and vertical rod be arranged in parallel.The outer end of adjusting screw(rod) 1 is welded with the cross bar handle, welding adjusting nut 2 in the screwed hole of corresponding adjusting screw(rod) below on the horizon bar, and during use, adjusting screw(rod) 1 compresses the end cap of insulating sleeve.The lower end of described vertical rod 31 is fixedly welded with right cutting ferrule 4, and the below of right cutting ferrule 4 corresponding horizon bars 32, right cutting ferrule 4 comprises connecting rod, right clip, connecting rod is vertically welded in the lower end of vertical rod 31, right clamp connection interlinking lever end and be positioned at horizon bar 32 below, right clip is an arcuate structure.Vertical rod 31 lower ends arrange the left cutting ferrule 9 that is flexibly connected with right cutting ferrule 4, and left cutting ferrule 9 comprises connecting rod, left clip, and connecting rod is parallel with the connecting rod of right cutting ferrule 4, and left clip is the arcuate structure that all equates with right clip radian, arc length.Left cutting ferrule 9 and right cutting ferrule 4 are flexibly connected in same plane, and the clip of left cutting ferrule 9 and right cutting ferrule 4 is used for being installed in the same groove of insulating sleeve tube wall.The length of horizon bar 32 is greater than the end cap radius, and the length of vertical rod 31 is greater than horizon bar 32, and the right cutting ferrule 4 that is welded in the present embodiment on the vertical rod 31 is installed in the 4th road groove of insulating sleeve.
The middle part of the connecting rod of described left cutting ferrule 9 is fixedly welded with sleeve 7, the sleeve 7 interior tie down screws 8 that arrange, and the position welding locking nut 6 of the corresponding sleeve 7 in the middle part of the connecting rod of right cutting ferrule 4, locking nut 6 locks screw rod 8 and uses.Tie down screw 8 is welded with the cross bar handle, and tie down screw 8 passes sleeve 7 and is threaded with locking nut 6.
Described left cutting ferrule 9 and right cutting ferrule 4 are provided with protective layer, and protective layer is the coarse flexible pipe that is fixed on the coarse felt pad of clip inboard or is enclosed within the clip outside.Protective layer is four identical coarse felt pads that are installed in clip inboard and position symmetry in the present embodiment.
The connecting rod of described right cutting ferrule 4 is welded with the positioner 5 that cooperates with left cutting ferrule 9, positioner 5 comprises that two are vertically welded in respectively connecting rod up and down two hard metal bars or the sheet metal of both sides, and two Metallic rod or sheet metal are positioned at same plane and parallel with horizon bar 32.When the clip of right cutting ferrule 4 and left cutting ferrule 9 was installed in the insulating sleeve groove, the connecting rod of left cutting ferrule 9 was positioned at positioner 5 just.
Be provided with clip 10 between the connecting rod of the connecting rod of described right cutting ferrule 4 and left cutting ferrule 9, clip 10 is positioned at the clip end, is used for further clamping left cutting ferrule 9 and right cutting ferrule 4.
When dismounting PT insures, the clip of left cutting ferrule 9 of the present invention and right cutting ferrule 4 is installed on respectively the both sides of the same groove of insulating sleeve tube wall, rotational lock screw rod 8, simultaneously so that the connecting rod of left cutting ferrule 9 slowly enters into the positioner 5 on the right cutting ferrule 4, when insulating sleeve is connected with cutting ferrule when tighter, tighten tie down screw 8, and clip 10 is snapped fit onto on the connecting rod of the connecting rod of right cutting ferrule 4 and left cutting ferrule 9, clip 10 is positioned at the end of clip so that better tighten insulating sleeve; Rotation adjusting screw(rod) 1 so that adjusting screw(rod) 1 one ends are on the insulating sleeve end cap, is tightened adjusting screw(rod) 1, compresses the spring at protective tube two ends, and the use screwdriver is the screw between dismantled and assembled catch and end cap, thereby insurance is dismantled or installed to PT.
The structural representation of another kind of PT insurance replacer as shown in Figure 2, be with the difference of embodiment 1: left clip and right clip are mutual fastening and are circular semi arch structure, in actual use, the caliber that the insulating sleeve of protective tube is housed is not quite similar, but conventional use only has several, therefore can be according to the size of customary insulation sleeve pipe groove caliber, making a series of that match with the insulating sleeve groove and clips is the replacer of semi arch structure, because clip and sleeve pipe all are circular, clip can contact with sleeve pipe and clamp fully, thus the clip of semicircular arc structure clamp better effects if.
Claims (7)
1.PT insurance replacer, it is characterized in that: comprise the link (3) that is welded as a whole by mutually perpendicular horizon bar (32) and vertical rod (31), the adjusting screw(rod) (1) that the outer end of described horizon bar (32) is threaded parallel with vertical rod (31); The fixing welding in the below of the corresponding horizon bar in described vertical rod (31) lower end (32) right cutting ferrule (4), right cutting ferrule (4) comprise the lower end that is welded on vertical rod (31) vertical links, be connected to the right clip that is positioned at horizon bar (32) below of interlinking lever end, right clip is for cooperating the arcuate structure that clamps insulating sleeve tube wall groove; The upper left cutting ferrule (9) that is flexibly connected of right cutting ferrule (4), left cutting ferrule (9) comprise the connecting rod parallel with the connecting rod of right cutting ferrule (4) and the left clip of the arcuate structure that equates with right clip radian;
The middle part of the connecting rod of described left cutting ferrule (9) is fixedly welded with sleeve (7), and tie down screw (8) is set in the sleeve (7), and the position welding of the corresponding sleeve in the middle part of the connecting rod of right cutting ferrule (4) (7) locks the locking nut (6) of screw rod (8).
2. PT according to claim 1 insures replacer, and it is characterized in that: the outer end of described adjusting screw(rod) (1) and tie down screw (8) is welded with the cross bar handle.
3. each described PT insures replacer according to claim 1 and 2, it is characterized in that: the fixing welding in the outer end of described horizon bar (32) cooperates the adjusting nut (2) of adjusting screw(rod) (1).
4. PT according to claim 1 insures replacer, and it is characterized in that: the clip inboard of described right cutting ferrule (4) and left cutting ferrule (9) arranges some felt pads.
5. PT according to claim 1 insures replacer, it is characterized in that: be welded with the positioner (5) that cooperates with left cutting ferrule (9) on the connecting rod of described right cutting ferrule (4), positioner (5) comprises the up and down both sides of two connecting rods that are vertically welded in respectively right cutting ferrule (4) and hard metal bar or the sheet metal parallel with horizon bar (32).
6. PT insurance replacer according to claim 1 is characterized in that: also comprise the clip (10) be used to the connecting rod of the connecting rod that clamps right cutting ferrule (4) and left cutting ferrule (9).
7. PT according to claim 1 insures replacer, it is characterized in that: the clip of described left cutting ferrule (9) and right cutting ferrule (4) is for fastening mutually the semicircular arc structure for circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310219186.5A CN103302629B (en) | 2013-06-04 | 2013-06-04 | PT insures replacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310219186.5A CN103302629B (en) | 2013-06-04 | 2013-06-04 | PT insures replacer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103302629A true CN103302629A (en) | 2013-09-18 |
| CN103302629B CN103302629B (en) | 2015-12-02 |
Family
ID=49128571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310219186.5A Active CN103302629B (en) | 2013-06-04 | 2013-06-04 | PT insures replacer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103302629B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531381A (en) * | 2013-10-10 | 2014-01-22 | 益和电气集团股份有限公司 | Clamp for mounting small nozzle of GIS (Gas Insulated Switchgear) switch arc extinguishing chamber |
| CN104924269A (en) * | 2015-06-10 | 2015-09-23 | 沈阳拓荆科技有限公司 | Mounting and removing tool for ceramic ring |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0529906A1 (en) * | 1991-08-23 | 1993-03-03 | General Electric Company | CRD endcap tool |
| JP2000120625A (en) * | 1998-10-12 | 2000-04-25 | Maeda Corp | Hose connector pressure fitting device |
| CN2751981Y (en) * | 2004-09-27 | 2006-01-18 | 中国石油天然气股份有限公司 | Special portable traction device for leather belt wheel |
| CN201089146Y (en) * | 2007-08-20 | 2008-07-23 | 江西铜业集团公司 | Special withdrawal tool for non-flanged sleeve parts |
| CN201808026U (en) * | 2010-08-31 | 2011-04-27 | 山西太钢不锈钢股份有限公司 | End cover compacting device of diesel locomotive brake cylinder |
| CN202185890U (en) * | 2011-06-07 | 2012-04-11 | 平高集团有限公司 | Screwing tool for moment of force |
-
2013
- 2013-06-04 CN CN201310219186.5A patent/CN103302629B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0529906A1 (en) * | 1991-08-23 | 1993-03-03 | General Electric Company | CRD endcap tool |
| JP2000120625A (en) * | 1998-10-12 | 2000-04-25 | Maeda Corp | Hose connector pressure fitting device |
| CN2751981Y (en) * | 2004-09-27 | 2006-01-18 | 中国石油天然气股份有限公司 | Special portable traction device for leather belt wheel |
| CN201089146Y (en) * | 2007-08-20 | 2008-07-23 | 江西铜业集团公司 | Special withdrawal tool for non-flanged sleeve parts |
| CN201808026U (en) * | 2010-08-31 | 2011-04-27 | 山西太钢不锈钢股份有限公司 | End cover compacting device of diesel locomotive brake cylinder |
| CN202185890U (en) * | 2011-06-07 | 2012-04-11 | 平高集团有限公司 | Screwing tool for moment of force |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531381A (en) * | 2013-10-10 | 2014-01-22 | 益和电气集团股份有限公司 | Clamp for mounting small nozzle of GIS (Gas Insulated Switchgear) switch arc extinguishing chamber |
| CN103531381B (en) * | 2013-10-10 | 2015-06-03 | 益和电气集团股份有限公司 | Clamp for mounting small nozzle of GIS (Gas Insulated Switchgear) switch arc extinguishing chamber |
| CN104924269A (en) * | 2015-06-10 | 2015-09-23 | 沈阳拓荆科技有限公司 | Mounting and removing tool for ceramic ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103302629B (en) | 2015-12-02 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| CB02 | Change of applicant information |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: State Grid Hebei Electric Power Company Applicant after: Power supply branch, Guo Wang Hebei Electric Power Corporation Zhao County Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: Hebei Electric Power Corporation Applicant before: Zhaoxian Power Supply Co., Ltd. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Zhaohui Inventor after: Song Xiaojun Inventor after: Tan Zhifeng Inventor after: An Yingjuan Inventor after: Li Lining Inventor after: Su Conghui Inventor after: Shi Wei Inventor after: Liu Liqiang Inventor after: Zhou Jianjun Inventor after: Zhao Zhidong Inventor after: Liu Weiliang Inventor after: Yuan Jisen Inventor after: Yin Cuihua Inventor before: Su Conghui Inventor before: Shi Wei Inventor before: Liu Liqiang Inventor before: Zhou Jianjun Inventor before: Liu Weiliang Inventor before: Yuan Jisen Inventor before: Zhou Zhaohui Inventor before: Yin Cuihua Inventor before: Song Xiaojun |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant |