CN114487505A - Auxiliary wiring device for transformer test - Google Patents

Abstract

The invention discloses an auxiliary wiring device for a transformer test, and relates to the technical field of power equipment. The technical scheme is as follows: the utility model provides a transformer test auxiliary connection device, includes first splint and the second splint of mutual disposition, connects through electric putter between first splint and the second splint, and electric putter includes the cylinder body, and the inside of cylinder body is provided with the push rod, and the tip of push rod is connected to first splint, and the one end that the push rod stretches out on the cylinder body is connected to the second splint, and the direction of movement of push rod is parallel to the array direction of first splint and second splint. The telescopic electric push rod drives the first clamping plate to move relative to the second clamping plate, clamping action is completed, the opening and closing width is enough, the electric push rod is applicable to wires of different types, the clamping force of the electric push rod is large, reliable fixation is facilitated, the electric push rod is stably connected with a transformer test wire and does not move, the electric push rod can directly pass through on-off control, operation is simple, response is fast, action is rapid, and the electric push rod can be replaced by an electric hydraulic push rod, a hydraulic cylinder, an air cylinder and other devices.

Description

Auxiliary wiring device for transformer test

Technical Field

The invention relates to the technical field of power equipment, in particular to an auxiliary wiring device for a transformer test.

Background

The transformer is one of the most important electrical equipment in the whole power system, can not only raise voltage to transmit electric energy to a power utilization area, but also reduce the voltage to various levels of service voltage so as to meet the power utilization requirement. With the continuous increase of power supply load and the continuous progress of transformer manufacturing process, in order to obtain better power transmission capacity, the diameter of a conducting rod of a transformer becomes larger and larger, and in order to ensure that the transformer can run safely and stably, a maintainer needs to carry out tests such as direct current resistance, sleeve pipe tests, short-circuit impedance, power failure routines and the like periodically to judge whether the running condition of the transformer is good or not.

Patent document for CN 208752111U discloses an experimental quick wiring pincers of transformer, the style that the wiring pincers exist among the solution prior art is not unified, the fixed scheduling problem of keeping silent size, and following technical characteristics are disclosed, embrace the chuck with the activity including fixed, the fixed chuck downside of embracing is provided with the horizontal guide bar that the cross-section is the rectangle, the activity is embraced cup jointed on the guide bar and inside is provided with the flexible actuating mechanism of drive guide bar of chuck downside activity, the surface is provided with locking screw, actuating mechanism includes rack and gear, rack fixed connection is in the guide bar bottom side, rotationally connect in the activity through the pivot with rack engaged with gear and embrace the chuck and rotate axle one end and stretch out the activity and embrace the chuck back and be connected with the twist grip.

Although the problem that the existing style is not uniform and the jaw size is fixed is solved, the opening and closing of the jaws needs to rotate the rotating handle, the driving rack drives the guide rod, then the jaws are opened and closed, and the locking screw is needed to be used when the jaws are fixed, so that the operation is very complicated, a large amount of test time is wasted, and the operation efficiency is reduced.

Disclosure of Invention

Aiming at the problems of complex jaw opening and closing and fixing operation and waste of operation time of the conventional quick wiring clamp for the transformer test, the invention provides the auxiliary wiring device for the transformer test, which drives the jaws to act by an electric push rod.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a transformer test auxiliary connection device, includes first splint and the second splint of mutual disposition, connects through electric putter between first splint and the second splint, and electric putter includes the cylinder body, and the inside of cylinder body is provided with the push rod, and first splint connection push rod, the one end that the push rod stretches out on the cylinder body is connected to the second splint, the parallel first splint of direction of movement of push rod and the array orientation of second splint. Install the first splint and the second splint of centre gripping wire on electric putter's push rod and cylinder body respectively, the flexible relative second splint of first splint of drive through the push rod removes, accomplish the centre gripping action, can guarantee that the width of opening and shutting is enough, be applicable to the wire of different grade type, the electric putter clamp force is big, be convenient for reliable fixed, steadily be connected with transformer test wire, not hard up aversion, electric putter can directly pass through on-off control, moreover, the steam generator is simple in operation, the response is fast, the action is rapid, a large amount of test time has been saved, electric putter adopts the outage dead lock type, can effectively avoid the fastener to drop, experimental reliability and efficiency have been guaranteed. The electric push rod can be replaced by an electric hydraulic push rod, a hydraulic cylinder, an air cylinder and the like.

Preferably, one side of the cylinder body is connected with a side plate, one end of the side plate is connected with a second clamping plate, the push rod penetrates through the second clamping plate to be connected with a first clamping plate, the other end of the side plate is connected with a base, the cylinder body is further connected with a motor, and the base is connected with the cylinder body and the motor. Carry out certain support through base and curb plate to second splint and electric putter, improve the steadiness of device structure.

Preferably, a battery is arranged on one side of the side plate opposite to the cylinder body, and the battery is electrically connected with the motor. The battery provides power for the motor of the electric push rod, the output shaft of the motor drives the screw rod in the cylinder body to rotate through the gear or the worm and gear structure after being decelerated, the nut matched with the screw rod moves in the cylinder body along the axial direction, and the push rod is driven to stretch.

Preferably, one side of the first clamping plate opposite to the second clamping plate is provided with a first groove, one side of the second clamping plate opposite to the first clamping plate is provided with a second groove, and the first groove and the second groove are oppositely arranged. The first groove and the second groove are convenient for clamping the test wire.

Preferably, the base is connected with a telescopic rod. When test items such as medium loss measurement, direct current resistance test, winding deformation and the like of a transformer with the voltage of 35kV or more are developed, the height of a conductive part from the ground is more than 4 meters. The current test wiring method commonly used in the overhaul operation field is to send a tester to the end of the sleeve by an insulating bucket arm vehicle to finish the test wiring work. The wiring and the disconnecting of the high-altitude test occupy more than half of time, the smooth implementation of the whole test is seriously influenced, and a large amount of manpower and material resources are consumed. In addition, with the increase of indoor main transformers, the space is limited, and the insulating bucket arm vehicle can not be opened, so that the height of the body of a tester can be reduced by arranging the telescopic rod, the use of other large-scale auxiliary equipment is reduced, and the operation efficiency is improved.

Preferably, the telescopic rod comprises at least two concentrically arranged hollow sleeves of different diameters, with a sliding connection between adjacent sleeves. The telescoping function is achieved by relative sliding of the concentrically arranged sleeves.

Preferably, be provided with between telescopic link and the base and turn to the structure, turn to the structure and include first branch, the one end of first branch and the end connection of telescopic link, the other end of first branch is rotated the one end of connecting second branch and is fixed through first threaded fastener, the other end of second branch is rotated and is connected the base and fixed through second threaded fastener, the rotation direction between second branch and the first branch, and the rotation direction between base and the second branch is located two vertically planes respectively. The first clamping plate and the second clamping plate are ensured to be vertical to the test wire end through the steering structure, and the test wire is convenient to disassemble and connect.

Preferably, the one end of base is kept away from to the telescopic link is provided with control switch, and the telescopic link is hollow structure, and the telescopic link is inside to be provided with the wire, and battery and control switch are connected to the wire. The battery at the top of the telescopic rod is controlled by the control switch at the bottom end of the telescopic rod to provide power for the motor, so that the first clamping plate and the second clamping plate can be opened and closed.

Preferably, a bottom plate is arranged between the cylinder body and the base, the cylinder body and the motor are both installed on one side of the bottom plate, a third protruding block is arranged on the other side of the bottom plate, and a through hole third groove matched with the third protruding block is formed in the base. The bottom plate is used as a connecting piece of the electric push rod and the base, and has certain buffering and protecting functions.

Preferably, the surface of the second clamping plate opposite to the cylinder body is provided with a fourth groove, and the shape of the fourth groove is matched with the end part of the cylinder body. Improve the stability of cooperation between second splint and the cylinder body.

The invention has the following beneficial effects: the switch controls the extension of the push rod of the electric push rod to drive the first clamping plate to be far away from or close to the second clamping plate, so that the opening and closing action is completed, the action is fast, the opening and closing width is large, the clamping force is sufficient, the time consumed by the test is reduced, and the test efficiency is improved; the base and the side plates are arranged, so that the stability and the strength of all aspects of the device are improved, the durability is good, and the service life is long; the telescopic rod is arranged, so that the height of a tester in use is reduced, and the use of large auxiliary equipment such as a bucket arm vehicle is reduced; be provided with and turn to the structure, when guaranteeing the wiring, the perpendicular wiring end in centre gripping space between first splint and the second splint is convenient for connect and tear test wire open.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

In the figure: 1. the clamping device comprises a first clamping plate, a second clamping plate, a first groove, a second groove, a battery, a second groove, a side plate, a second clamping plate, a motor, a cylinder body, a base plate, a bottom plate, a base, a first supporting rod, a second supporting rod, a first threaded fastener, a second threaded fastener, a telescopic rod, a mounting hole, a third bump, a through hole, a mounting hole, a second threaded fastener, a third bump, a mounting hole, a third bump, a mounting hole, a through hole, a mounting hole, a push rod and a push rod.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the auxiliary wiring device for the transformer test comprises an expansion link 15, wherein the expansion link 15 comprises at least two concentrically arranged hollow sleeves with different diameters, the diameters of the sleeves are gradually reduced from outside to inside, and the adjacent sleeves are connected in a sliding manner. The top end of the telescopic rod 15 is connected with one end of the first supporting rod 11 through threads, the other end of the first supporting rod 11 is hinged with one end of the second supporting rod 12, the hinged portion of the first supporting rod 11 and the second supporting rod 12 is fixed through a first threaded fastener 14, the other end of the second supporting rod 12 is hinged with one end of the base 10, and the hinged portion of the base 10 and the second supporting rod 12 is fixed through a second threaded fastener 13. Through the length that telescopic link 15 can adjusting device, the distance that extension fixture can reach makes the tester no longer need be close to the operation of test point, has reduced space auxiliary assembly's use, and the aerial work and the indoor work of being convenient for, the structure that turns to that first branch 11 and second branch 12 are constituteed can adjust the angle of the relative terminal of device, makes the device perpendicular as far as possible with the terminal, is convenient for wiring and the operation of taking out stitches. The rotating directions of the first supporting rod 11 and the second supporting rod 12 and the rotating direction between the second supporting rod 12 and the base 10 are respectively positioned in two perpendicular planes, so that the adjusting range of the angle is enlarged, and the adaptability of the device to different positions is enhanced.

The base 10 is connected with a vertical side plate 6, the side plate 6 and the second supporting rod 12 are respectively located on two sides of the base 10, the side plate 6 is connected with a cylinder body 8 of an electric push rod, the cylinder body 8 of the electric push rod and the bottom end of the motor 7 are installed on one side of the bottom plate 9, the other side of the bottom plate 9 is provided with a third bump 17, the base 10 is provided with a through hole matched with the third bump 17, and the base 10 and the bottom plate 9 are connected through the through hole 18 and the third bump 17 in a matched mode. The one end that push rod 19 stretched out on the cylinder body 8 is provided with second splint 2, and second splint 2 and curb plate 6's end connection, the one side relative with cylinder body 8 on the second splint 2 is provided with the fourth recess, the shape of fourth recess and the shape adaptation of 8 tip of cylinder body. The push rod 19 passes through the mounting hole 16 of the second clamping plate 2 to be connected with the first clamping plate 1, the first clamping plate 1 and the second clamping plate 2 are oppositely arranged, and the moving direction of the push rod 19 is parallel to the arrangement direction of the first clamping plate 1 and the second clamping plate 2. The one side opposite to second splint 2 on first splint 1 is provided with first recess 3, and the one side opposite to first splint 1 on second splint 2 is provided with second recess 4, and first recess 3 and second recess 4 are arranged relatively. The first recess 3 and the second recess 4 may improve the clamping capability of the device to the test line. The battery 5 is connected with one side that curb plate 6 carried on the back with the cylinder body 8 mutually, and the motor 7 of electric putter is connected to battery 5 electricity, for motor 7 provides power, and battery 5 passes through wire connection control switch, and control switch sets up at the bottom of telescopic link 15, and the wire is located inside telescopic link 15.

The working process of the invention is that firstly, enough electric quantity in the battery 5 is ensured, the electric push rod can normally run, when the device is used, the length of the telescopic rod 15 is adjusted, so that the first clamping plate 1 and the second clamping plate 2 can contact the terminal of a test wire, the angle of the second supporting rod 12 relative to the first supporting rod 11 is adjusted, the angle of the base 10 relative to the second supporting rod 12 is adjusted, and when the device extends to the test wire, the first clamping plate 1 and the second clamping plate 2 are kept vertical to the terminal as much as possible; after the tester handheld device moves the device to a proper position, the control switch at the bottom of the telescopic rod 15 is pressed, the control switch controls the battery 5 to provide power for the motor 7 of the electric push rod, the motor 7 drives the screw rod in the cylinder body 8 to rotate through a gear structure or a worm and gear structure after speed reduction, the screw rod drives the matched nut to move along the axial direction and drives the push rod 19 to move, the push rod 19 drives the first clamping plate 1 to move relative to the second clamping plate 2, opening and closing actions are realized, and clamping wiring is realized. The electric push rod can be replaced by an electric hydraulic push rod, a hydraulic cylinder, an air cylinder and the like.

It will be understood that when an element or layer is referred to as being "on," connected to, "or" coupled to "another element or layer, it can be directly on, connected or coupled to the other element or layer, and intervening elements or layers may also be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Spatially relative terms such as "under …", "below", "lower", "above", "over", and the like, as may be used herein for ease of description, describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description in this document. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a transformer test auxiliary connection device, a serial communication port, including first splint (1) and second splint (2) of mutual disposition, connect through electric putter between first splint (1) and second splint (2), electric putter includes cylinder body (8), the inside of cylinder body (8) is provided with push rod (19), push rod (19) are connected in first splint (1), the one end that push rod (19) stretched out on cylinder body (8) is connected in second splint (2), the direction of movement of push rod (19) is parallel to the array direction of first splint (1) and second splint (2).

2. The transformer test auxiliary wiring device according to claim 1, wherein a side plate (6) is connected to one side of the cylinder body (8), one end of the side plate (6) is connected with the second clamping plate (2), the push rod (19) penetrates through the second clamping plate (2) to be connected with the first clamping plate (1), the other end of the side plate (6) is connected with a base (10), the cylinder body (8) is further connected with a motor (7), and the base (10) is connected with the cylinder body (8) and the motor (7).

3. The auxiliary wiring device for the transformer test as claimed in claim 2, wherein a battery (5) is provided on the side of the side plate (6) opposite to the cylinder (8), and the battery (5) is electrically connected with the motor (7).

4. The auxiliary wiring device for transformer tests as claimed in claim 1 or 2, characterized in that the side of the first clamping plate (1) opposite to the second clamping plate (2) is provided with a first groove (3), the side of the second clamping plate (2) opposite to the first clamping plate (1) is provided with a second groove (4), and the first groove (3) and the second groove (4) are oppositely arranged.

5. The auxiliary wiring device for transformer tests as claimed in claim 2 or 3, wherein the base (10) is connected with a telescopic rod (15).

6. Auxiliary wiring device for transformer tests according to claim 5, characterized in that the telescopic rod (15) comprises at least two concentrically arranged hollow sleeves of different diameters, with a sliding connection between adjacent sleeves.

7. The transformer test auxiliary wiring device according to claim 5, wherein a steering structure is arranged between the telescopic rod (15) and the base (10), the steering structure comprises a first support rod (11), one end of the first support rod (11) is connected with the end of the telescopic rod (15), the other end of the first support rod (11) is rotatably connected with one end of a second support rod (12) and is fixed through a first threaded fastener (14), the other end of the second support rod (12) is rotatably connected with the base (10) and is fixed through a second threaded fastener (13), and the rotating directions between the second support rod (12) and the first support rod (11) and the rotating directions between the base (10) and the second support rod (12) are respectively located in two perpendicular planes.

8. The transformer test auxiliary wiring device as claimed in claim 5, wherein a control switch is arranged at one end of the telescopic rod (15) far away from the base (10), the telescopic rod (15) is of a hollow structure, and a lead is arranged inside the telescopic rod (15) and is connected with the battery (5) and the control switch.

9. The auxiliary wiring device for the transformer test according to claim 2 or 3, wherein a bottom plate (9) is arranged between the cylinder body (8) and the base (10), the cylinder body (8) and the motor (7) are both arranged on one side of the bottom plate (9), a third bump (17) is arranged on the other side of the bottom plate (9), and a through hole (18) or a third groove matched with the third bump (17) is arranged on the base (9).

10. The auxiliary wiring device for the transformer test as claimed in claim 1 or 2, wherein the surface of the second clamping plate (2) opposite to the cylinder body (8) is provided with a fourth groove, and the shape of the fourth groove is matched with the end part of the cylinder body (8).

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