CN202917871U - Wiring lug extractor for power transformer - Google Patents
Wiring lug extractor for power transformer Download PDFInfo
- Publication number
- CN202917871U CN202917871U CN 201220347541 CN201220347541U CN202917871U CN 202917871 U CN202917871 U CN 202917871U CN 201220347541 CN201220347541 CN 201220347541 CN 201220347541 U CN201220347541 U CN 201220347541U CN 202917871 U CN202917871 U CN 202917871U
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- CN
- China
- Prior art keywords
- loose
- leaf
- strutting piece
- power transformer
- connecting ear
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- 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
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Abstract
The utility model discloses a wiring lug extractor for a power transformer. The wiring lug extractor comprises a first hinge piece (1), a second hinge piece (2), a first support piece (3) and a screw rod (5); the first hinge piece (1) and the second hinge piece (2) are movably buckled and enclosed into a ring body adapting to the outside facade of a power transformer wiring lug (7); the first support piece (3) is fixed on the first flange piece (1); the screw rod (5) is in threaded transmission connection with the first support piece (3); when the screw rod (5) is screwed and rotated, the threaded end part of the screw rod (5) is propped against a wiring terminal (8) inside the wiring lug (7); the first hinge piece (1) and the second hinge piece (2), which are buckled together, tightly hug the wiring lug (7); and the wiring lug (7) is extracted from the wiring terminal (8) under the driving of the first support piece (3). The wiring lug extractor for the power transformer can efficiently and safely extract the wiring lug of the power transformer from the wiring terminal.
Description
Technical field
The utility model relates to a kind of repair apparatus of power transformer, specifically a kind of connecting ear extractor of power transformer.
Background technology
Power transformer is a kind of static electric equipment, when it is worked in electric power system, can be with electric energy by its primary side through the converting transmission of electromagnetic energy to secondary side, according to the needs of power transmission and distribution voltage is raise simultaneously or reduces.Therefore it acts on very important in the overall process that production is carried and distribution is used of electric energy.
Because of extensive use and the critical role of power transformer in electric power system, the staff needs often it to be carried out inspection and maintenance, and it is wherein important routine work that the high-voltage connection of dismounting power transformer carries out repair and maintenance.As depicted in figs. 1 and 2, now in the electric power system of China, employing connecting ear 7 is realized connection and the energising between high-voltage connection and the power transformer, specific practice is: the orifice plate partial fixing of connecting ear 7 is socketed in the collar portion of connecting ear 7 on the binding post 8 of power transformer and locking on high-voltage connection.Maintaining method traditionally is that the staff climbs up on the sleeve pipe of power transformer, manually connecting ear 7 is upwards firmly extracted from binding post 8, carries out repair and maintenance again.
But find through long-term practice, traditional power transformer connecting ear method for pulling out has the following disadvantages and great potential safety hazard:
1, joint is fastening for a long time, because chemical actions such as oxidations, connecting ear 7 is very firm in conjunction with meeting with binding post 8, add that connecting ear 7 adopts pure copper material, and the one section high-voltage connection that connects, having increased the weight of connecting ear 7, the staff need to make very great strength connecting ear 7 could be extracted;
2, pigtail splice is for eminence, and the staff need to climb up sleeve pipe usually, above being sitting in, then upwards extract connecting ear 7, the direction of exerting oneself in this process is vertically upward, easily causes overexertion, the staff is owing to inertia climbs over head, the personnel that the cause injures and deaths of falling;
3, when environmental condition is better, can use high-altitude operation vehicle to safeguard, but overexertion can occur transfering to connecting ear 7 equally the time, thereby cause the high-altitude operation vehicle arm seriously to rock, may hit power equipment, cause damage of equipment.
The utility model content
The purpose of this utility model provides a kind of power transformer connecting ear extractor, can be efficient, safe the power transformer connecting ear is extracted from binding post.
The purpose of this utility model is achieved through the following technical measures:
A kind of power transformer connecting ear extractor, described extractor comprises the first loose-leaf spare, the second loose-leaf spare, the first strutting piece and screw rod; Described the first loose-leaf spare and the merging of the second loose-leaf spare movable button surround the circle body that adapts to the outer facade of power transformer connecting ear, and described the first strutting piece is fixed on the first loose-leaf spare, and described screw rod and the first strutting piece screw thread are in transmission connection; Twist screw rod, on the binding post of screw flight end contact in being socketed on connecting ear, the first loose-leaf spare and the second loose-leaf spare that are interlocked are held connecting ear tightly, and under the drive of the first strutting piece connecting ear are extracted from binding post.
For the ease of staff's manual working, the screw head of described screw rod is provided with for manually twisting shaking hands of screw rod.
Have perforation on described in the utility model the shaking hands.
Extractor described in the utility model also comprises form loose-leaf binder; One end of described the first loose-leaf spare and the second loose-leaf spare is hinged, and the other end of the second loose-leaf spare is provided with the draw-in groove that adapts to form loose-leaf binder, and an end of described form loose-leaf binder and the other end of the first loose-leaf spare are hinged, and other end activity button-fold is on the draw-in groove of the second loose-leaf spare.
For so that the structure of the utility model extractor is more firm, improve connecting ear and transfer to efficient, on the basis of above-mentioned various structures, described extractor also comprises the second strutting piece that is fixed on the second loose-leaf spare; Have the pin hole that adapts to the first strutting piece on described the second strutting piece, the first strutting piece is plugged on the pin hole of the second strutting piece when the first loose-leaf spare and the second loose-leaf spare fastening.
Compared with prior art, power transformer connecting ear extractor of the present utility model has following technique effect:
Power transformer connecting ear extractor of the present utility model utilizes the first loose-leaf spare and the second loose-leaf spare to hold connecting ear tightly, by turning screw rod, by the first strutting piece screw is converted into rectilinear motion, the connecting ear that drive is held tightly is transferred to binding post, the staff is in operating process, since turn screw rod firmly and speed fully controlled, to can not overexertion occur and have the problem of potential safety hazard, realize efficient, the safe purpose that the power transformer connecting ear is extracted from binding post.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the schematic diagram that separates of connecting ear on the power transformer and binding post;
Fig. 2 is connecting ear on the power transformer and the combination schematic diagram of binding post;
Fig. 3 is the structural representation of the utility model power transformer connecting ear extractor;
Fig. 4 is the schematic diagram of the utility model power transformer connecting ear extractor buckling state.
Embodiment
As shown in Figures 2 and 3, power transformer connecting ear extractor of the present utility model comprises the first loose-leaf spare 1, the second loose-leaf spare 2, the first strutting piece 3 and screw rod 5; The first loose-leaf spare 1 and the merging of the second loose-leaf spare 2 movable buttons surround the circle body that adapts to power transformer connecting ear 7 outer facades, and the first strutting piece 3 is fixed on the first loose-leaf spare 1, and screw rod 5 and the first strutting piece 3 screw threads are in transmission connection; Twist screw rod 5, on the binding post 8 of the thread head contact of screw rod 5 in being socketed on connecting ear 7, the first loose-leaf spare 1 and the second loose-leaf spare 2 that are interlocked are held connecting ear 7 tightly, and under the drive of the first strutting piece 3 connecting ear 7 are extracted from binding post 8.
For the ease of staff's manual working, the screw head of screw rod 5 is provided with for what manually twist screw rod 5 and shakes hands 6.Wherein, shake hands and also can offer perforation 6a on 6.When the staff twists screw rod 5 when running into jam, can in perforation 6a, pass a hard thing and twist moment with increase.
The mode that the utility model fastens the first loose-leaf spare 1 and the second loose-leaf spare 2 is at extractor form loose-leaf binder 9 to be set; One end of the first loose-leaf spare 1 and the second loose-leaf spare 2 is hinged, the other end of the second loose-leaf spare 2 is provided with the draw-in groove 2a that adapts to form loose-leaf binder 9, one end of form loose-leaf binder 9 and the other end of the first loose-leaf spare 1 are hinged, and other end activity button-fold is on the draw-in groove 2a of the second loose-leaf spare 2.
For so that the structure of the utility model extractor is more firm, improve connecting ear and transfer to efficient, the utility model extractor also comprises the second strutting piece 4 that is fixed on the second loose-leaf spare 2; Have the pin hole 4a that adapts to the first strutting piece 3 on the second strutting piece 4, the first strutting piece 3 is plugged on the pin hole 4a of the second strutting piece 4 when the first loose-leaf spare 1 and the second loose-leaf spare 2 fastening.
Above-mentioned power transformer connecting ear extractor, effect by its each parts mainly is divided into two parts, one is the mechanism of encircling that comprises the first loose-leaf spare 1, the second loose-leaf spare 2 and form loose-leaf binder 9, another is to comprise the first strutting piece 3, the second strutting piece 4, screw rod 5 and 6 the screw rod ejecting mechanism of shaking hands, encircle mechanism and can adopt high-strength aluminum alloy to make, screw rod 5 can adopt abrasion-resistant stee to make.Encircle the shape, size of mechanism and make based on the outer facade of connecting ear 7, it is as a fastener activity, that can go up button, plays power transformer connecting ear extractor of the present utility model is fastened on effect on the connecting ear 7; Screw rod 5 in the rotary screw ejecting mechanism just can advance the function of binding post 8, thereby extracts line ear 7.
Execution mode of the present utility model is not limited to this; under the above-mentioned basic fundamental thought of the utility model prerequisite; according to modification, replacement or the change to the utility model other various ways that content is made of the ordinary skill knowledge of this area and customary means; as suitable buckle is set respectively to realize movable buckle on above-mentioned the first loose-leaf spare 1 and the second loose-leaf spare 2; adopt hasp to substitute form loose-leaf binder 7; the first strutting piece 3 is extension of the first loose-leaf spare 1 etc., all within the utility model rights protection scope.
Claims (6)
1. power transformer connecting ear extractor, it is characterized in that: described extractor comprises the first loose-leaf spare (1), the second loose-leaf spare (2), the first strutting piece (3) and screw rod (5); Described the first loose-leaf spare (1) and the merging of the second loose-leaf spare (2) movable button surround the circle body that adapts to the outer facade of power transformer connecting ear (7), described the first strutting piece (3) is fixed on the first loose-leaf spare (1), and described screw rod (5) is in transmission connection with the first strutting piece (3) screw thread; Twist screw rod (5), on the binding post (8) of the thread head contact of screw rod (5) in being socketed on connecting ear (7), the the first loose-leaf spare (1) and the second loose-leaf spare (2) that are interlocked are held connecting ear (7) tightly, and under the drive of the first strutting piece (3) connecting ear (7) are extracted from binding post (8).
2. power transformer connecting ear extractor according to claim 1, it is characterized in that: the screw head of described screw rod (5) is provided with for shake hands (6) of manually twisting screw rod (5).
3. power transformer connecting ear extractor according to claim 2 is characterized in that: have perforation (6a) on described the shaking hands (6).
4. according to claim 1 to 3 each described power transformer connecting ear extractors, it is characterized in that: described extractor also comprises form loose-leaf binder (9); One end of described the first loose-leaf spare (1) and the second loose-leaf spare (2) is hinged, the other end of the second loose-leaf spare (2) is provided with the draw-in groove (2a) that adapts to form loose-leaf binder (9), the other end of one end of described form loose-leaf binder (9) and the first loose-leaf spare (1) is hinged, and other end activity button-fold is on the draw-in groove (2a) of the second loose-leaf spare (2).
5. according to claim 1 to 3 each described power transformer connecting ear extractors, it is characterized in that: described extractor also comprises the second strutting piece (4) that is fixed on the second loose-leaf spare (2); Have the pin hole (4a) that adapts to the first strutting piece (3) on described the second strutting piece (4), the first strutting piece (3) is plugged on the pin hole (4a) of the second strutting piece (4) when the first loose-leaf spare (1) and the second loose-leaf spare (2) fastening.
6. power transformer connecting ear extractor according to claim 4, it is characterized in that: described extractor also comprises the second strutting piece (4) that is fixed on the second loose-leaf spare (2); Have the pin hole (4a) that adapts to the first strutting piece (3) on described the second strutting piece (4), the first strutting piece (3) is plugged on the pin hole (4a) of the second strutting piece (4) when the first loose-leaf spare (1) and the second loose-leaf spare (2) fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347541 CN202917871U (en) | 2012-07-17 | 2012-07-17 | Wiring lug extractor for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347541 CN202917871U (en) | 2012-07-17 | 2012-07-17 | Wiring lug extractor for power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917871U true CN202917871U (en) | 2013-05-01 |
Family
ID=48166147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347541 Expired - Lifetime CN202917871U (en) | 2012-07-17 | 2012-07-17 | Wiring lug extractor for power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790362A (en) * | 2012-07-17 | 2012-11-21 | 广东电网公司东莞供电局 | Wiring lug extractor for power transformer |
| CN106299973A (en) * | 2016-09-23 | 2017-01-04 | 北京无线电测量研究所 | A kind of instrument for pluggable electric connector |
-
2012
- 2012-07-17 CN CN 201220347541 patent/CN202917871U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790362A (en) * | 2012-07-17 | 2012-11-21 | 广东电网公司东莞供电局 | Wiring lug extractor for power transformer |
| CN106299973A (en) * | 2016-09-23 | 2017-01-04 | 北京无线电测量研究所 | A kind of instrument for pluggable electric connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |