阅读说明：本技术 一种可以提高检修效率的变压器 (Transformer capable of improving maintenance efficiency ) 是由 林晓丽 于 2021-09-26 设计创作，主要内容包括：本发明公开了一种可以提高检修效率的变压器,属于变压器领域,一种可以提高检修效率的变压器,包括变压器本体,以及安装在变压器本体顶部的瓷套管,瓷套管上竖直插接有导电杆,导电杆上且位于瓷套管的顶部套接有瓷帽,瓷帽的顶部还设置有垫片,导电杆上位于垫片的顶部设置有承压结构,承压结构与导电杆螺纹连接,还包括,设置在承压结构上方且与导电杆活动套接的按压结构,按压结构按压卡接在承压结构上,承压结构包括有与导电杆螺纹连接的底座,底座的环面靠近顶部开设有导向槽,导向槽的中部设置有凸起的导向隔凸,它可以实现消除人工逐个缠绕电丝与逐个取出紧固螺丝的所用时间差,减少时间损耗,提升检修效率。(The invention discloses a transformer capable of improving maintenance efficiency, belonging to the field of transformers, and the transformer capable of improving maintenance efficiency comprises a transformer body and a porcelain sleeve arranged on the top of the transformer body, wherein a conductive rod is vertically inserted into the porcelain sleeve, a porcelain cap is sleeved on the conductive rod and positioned on the top of the porcelain sleeve, the top of the porcelain cap is also provided with a gasket, the conductive rod is provided with a pressure-bearing structure positioned on the top of the gasket, the pressure-bearing structure is in threaded connection with the conductive rod, the transformer also comprises a pressing structure which is arranged above the pressure-bearing structure and is movably sleeved with the conductive rod, the pressing structure is pressed and clamped on the pressure-bearing structure, the pressure-bearing structure comprises a base in threaded connection with the conductive rod, the ring surface of the base is provided with a guide groove close to the top, the middle part of the guide groove is provided with a convex guide partition, and the time difference between manual winding of electric wires one by one and taking out of fastening screws one by one can be eliminated, time loss is reduced, and maintenance efficiency is improved.)

1. The utility model provides a can improve maintenance efficiency's transformer, includes transformer body (1) to and install porcelain bushing (2) at transformer body (1) top, vertical grafting has conducting rod (4), its characterized in that on porcelain bushing (2): a porcelain cap (5) is sleeved on the top of the conductive rod (4) and positioned on the porcelain sleeve (2), and a gasket (6) is further arranged on the top of the porcelain cap (5);

a pressure-bearing structure (700) is arranged on the top of the gasket (6) on the conducting rod (4), and the pressure-bearing structure (700) is in threaded connection with the conducting rod (4);

the pressing structure (800) is arranged above the pressure-bearing structure (700) and movably sleeved with the conducting rod (4), and the pressing structure (800) is pressed and clamped on the pressure-bearing structure (700);

the pressing structure (800) comprises a pressing block (8), a separation chamber (11) is arranged at the bottom of the pressing block (8), an insulating lining ring (12) is sleeved inside the separation chamber (11) on the conducting rod (4), one side of the annular side wall of the insulating lining ring (12) is a plane, a micro motor (13) is fixed on the insulating lining ring (12) corresponding to the plane, and a gear (14) is connected to the output shaft of the micro motor (13) in a transmission manner;

the pressing structure (800) further comprises a bearing (15) arranged on the insulating lining ring (12), and gear teeth (16) are arranged on the top of an outer ring (15 a) of the bearing (15) along the center of the bearing (15) in an array mode;

the height of an outer ring (15 a) of the bearing (15) is higher than that of an inner ring (15 b) of the bearing (15), the bearing is arranged at the top of the outer ring (15 a), and the gear teeth (16) are in fit engagement with the gear (14);

the pressing structure (800) further comprises a fixed plate (17) and a movable plate (18) which are arranged on the outer annular surface of the bearing (15), one end of the fixed plate (17) is fixed on the bearing (15), the other end of the fixed plate (17) is movably connected with the movable plate (18), the joint end of the fixed plate (17) and the movable plate (18) is arranged in an arc shape, and the tail end of the movable plate (18) is not in contact with the annular wall of the bearing (15).

2. The transformer capable of improving the overhauling efficiency according to the claim 1, wherein: the pressure-bearing structure (700) comprises a base (7) in threaded connection with the conducting rod (4), a guide groove (9) is formed in the ring surface of the base (7) close to the top, a raised guide partition protrusion (10) is arranged in the middle of the guide groove (9), and the guide groove (9) is matched with the guide partition protrusion (10) to separate two channels.

3. The transformer capable of improving the overhauling efficiency as recited in claim 2, wherein: the guide groove (9) and the guide partition protrusion (10) are obliquely arranged on the base (7), and the outer groove wall on one side of the guide groove (9) is in an arc-shaped protruding shape towards the outer side of the guide groove.

4. The transformer capable of improving the overhauling efficiency according to the claim 1, wherein: the conductive rod (4) is further provided with a rubber pad (19) arranged at the top of the pressing structure (800), the rubber pad (19) is located between the pressure bearing structure (700) and the pressing structure (800), and the rubber pad (19) is annularly protruded corresponding to the inner diameter of the separation chamber (11) and attached to the inner wall of the separation chamber (11).

5. The transformer capable of improving the overhauling efficiency according to the claim 1, wherein: the bottom surface of the pressing block (8) is obliquely provided with a plurality of buckling rods (20), the buckling rods (20) are arranged in a central annular array of the pressing block (8), the inclination angles of the buckling rods (20) and the guide grooves (9) are consistent, the inner annular surfaces of the buckling rods (20) are provided with guide blocks (21), cavities (22) are formed in the guide blocks (21), reset springs (23) are fixed in the cavities (22), connecting ports of the cavities (22) are provided with connecting columns (24) connected with the reset springs (23), and the bottoms of the connecting columns (24) are provided with connecting plates (25);

the cavity (22), the return spring (23) and the connecting column (24) are axially consistent with the inclined axis of the pressing block (8).

6. The transformer capable of improving the overhauling efficiency as recited in claim 5, wherein: the number of the buckling rods (20) is consistent with that of the guide grooves (9), and the pressing block (8) is detachably clamped in the guide grooves (9) through the buckling rods (20).

Technical Field

The invention relates to the field of transformers, in particular to a transformer capable of improving maintenance efficiency.

Background

A power transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. When the primary winding is energized with an alternating current, an alternating magnetic flux is generated, and the alternating magnetic flux is magnetically conducted through the iron core, so that an alternating electromotive force is induced in the secondary winding. The level of the secondary induced electromotive force is related to the number of turns of the primary winding, i.e. the voltage is proportional to the number of turns. The main role is to transmit electrical energy, and thus, the rated capacity is its main parameter.

The measurement insulation overhaul detection of the power transformer is an important item in transformer tests, the detection has higher sensitivity for detecting the integral insulation condition of the transformer, the influence of a conductive part of the transformer on insulation foreign matters can be effectively detected, the insulation is locally or wholly affected with damp and dirty, the insulation oil is seriously degraded, the insulation breakdown and serious thermal aging and other defects are overcome, generally, when the transformer is subjected to insulation detection maintenance, fastening screws of conductive rods on a porcelain sleeve of the transformer can be unscrewed one by one, a test section of the conductive rods is vacated, test wires are wound on the conductive rods one by one according to the number of the porcelain sleeves on the transformer, and finally, an insulation guide rod is used for carrying out current test.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a transformer capable of improving the maintenance efficiency, which can eliminate the time difference between the manual winding of the electric wires one by one and the manual taking out of the fastening screws one by one, reduce the time loss and improve the maintenance efficiency.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A transformer capable of improving overhauling efficiency comprises a transformer body and a porcelain sleeve arranged at the top of the transformer body, wherein a conducting rod is vertically inserted into the porcelain sleeve, a porcelain cap is sleeved on the conducting rod and positioned at the top of the porcelain sleeve, and a gasket is further arranged at the top of the porcelain cap;

a pressure-bearing structure is arranged on the top of the gasket on the conducting rod and is in threaded connection with the conducting rod;

still include, set up in pressure-bearing structure top and with the structure of pressing that the conducting rod activity cup jointed, press the structure and press the joint on pressure-bearing structure.

Furthermore, the pressure-bearing structure comprises a base in threaded connection with the conducting rod, a guide groove is formed in the ring surface of the base close to the top, a protruding guide partition is arranged in the middle of the guide groove, and the guide groove is matched with the guide partition to form two channels.

Furthermore, the guide groove and the guide partition are obliquely arranged on the base, and the outer groove wall on one side of the guide groove is in an arc-shaped convex shape towards the outer side of the guide groove.

Furthermore, the pressing structure comprises a pressing block, a separation chamber is arranged at the bottom of the pressing block, an insulating lining ring is sleeved inside the separation chamber on the conducting rod, one side of the annular side wall of the insulating lining ring is a plane, a micro motor is fixed on the insulating lining ring corresponding to the plane, and a gear is connected to an output shaft of the micro motor in a transmission mode.

Furthermore, the pressing structure further comprises a bearing arranged on the insulating lining ring, and gear teeth are arranged on the top of an outer ring of the bearing along the center of the bearing as a circle center array.

Furthermore, the height of the outer ring of the bearing is higher than that of the inner ring of the bearing, the outer ring is arranged at the top of the outer ring, and the gear teeth are meshed with the gear in a matching mode.

Furthermore, the pressing structure further comprises a fixed plate and a movable plate which are arranged on the outer ring surface of the bearing, one end of the fixed plate is fixed on the bearing, the other end of the fixed plate is movably connected with the movable plate, the joint end of the fixed plate and the movable plate is arranged in an arc shape, and the tail end of the movable plate is not contacted with the ring wall of the bearing.

Furthermore, still be provided with the cushion of installing at the structure top of pressing on the conducting rod, the cushion is located between pressure-bearing structure and the structure of pressing, the inside diameter annular arch of corresponding compartment on the cushion to with the laminating of the inner wall of compartment.

Furthermore, a plurality of buckling rods are obliquely arranged on the bottom surface of the pressing block, the buckling rods are arranged in a central annular array of the pressing block, the inclination angles of the buckling rods and the guide grooves are consistent, guide blocks are arranged on the inner annular surfaces of the buckling rods, a cavity is formed in each guide block, a return spring is fixed in each cavity, a connecting column connected with the return spring is installed at a near port of each cavity, and a connecting plate is arranged at the bottom of each connecting column;

the axial directions of the cavity, the reset spring and the connecting column are all consistent with the inclined axial direction of the pressing block.

Further, the number of the buckling rods and the number of the guide grooves are consistent, and the pressing block is detachably clamped in the guide grooves through the buckling rods.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme, because the outer cell wall of one side of guide way is the protruding form of arc towards its outside, when promoting the guide block and inserting the inslot, the guide block is the interior bottom that arc bellied inner wall of arc pushed gradually the guide way by the guide way, the recess that the protruding messenger guide way of guide way formation was separated in the direction of guide way inside, the guide block lies in the direction and separates protruding bottom and with the direction and separate protruding the counterbalance, the action of pressing the block is accomplished, it is rotatory to be the one side that the protruding inner wall of arc is relative in the guide way, pass the guide block to inside another channel, the guide block is relieved and is restricted, open the compartment, automatic admission machine exposes, carry out wire winding preparation work, reduce artifical wire winding time.

(2) In the scheme, by starting the micro motor, the gear on the micro motor is meshed with the driving gear teeth to rotate, the outer ring of the bearing and the fixed plate fixed on the outer ring rotate along with the micro motor, the electric wire for insulation maintenance test passes through a hollow groove formed between the fixed plate and the movable plate, the fixed plate and the movable plate simultaneously limit the electric wire, the micro motor drives the electric wire to rotate annularly and wind on the outer ring when rotating, after the electric wire of an individual conducting rod is wound, the micro motor stops moving, the wound electric wire is downwards stirred to be separated from the fixed plate and the movable plate because the tail end of the movable plate is not contacted with the wall of the bearing ring, the electric wire is still positioned on the bearing at the moment, the electric wire is pulled to the next conducting rod (the bearing rotates along with the micro motor when the electric wire is pulled), the operation is sequentially analogized until the electric wire on the conducting rods is completely wound, compared with the traditional manual winding and fixing mode one by one another, convert artifical winding operation into electric drive winding, only need artifical traction direction to each conducting rod on, reach and eliminate artifical winding electric wire one by one and take out fastening screw's used time difference one by one, reduce time loss, promote maintenance efficiency.

Drawings

FIG. 1 is a schematic diagram of a transformer according to the present invention;

FIG. 2 is a schematic structural view of a porcelain bushing, a bearing structure and a pressing structure according to the present invention;

FIG. 3 is a schematic view of the present invention with the bearing structure and the pressing structure separated;

FIG. 4 is an enlarged detail view of A in FIG. 3 according to the present invention;

FIG. 5 is a schematic structural view of a pressure-bearing structure and a separation structure in section according to the present invention;

FIG. 6 is a schematic structural view of the buckle rod and the guide groove of the present invention;

FIG. 7 is a schematic diagram of a detail B of FIG. 6 according to the present invention;

FIG. 8 is a schematic diagram of a detail at C of FIG. 6 according to the present invention;

FIG. 9 is a schematic structural view of a three-dimensional half-section of the porcelain bushing of the present invention;

fig. 10 is an enlarged view of a portion of fig. 2 according to the present invention.

The reference numbers in the figures illustrate:

1. a transformer body; 2. a porcelain bushing; 4. a conductive rod; 5. a porcelain cap; 6. a gasket; 700. a pressure-bearing structure; 800. a pressing structure; 7. a base; 8. briquetting; 9. a guide groove; 10. a guide partition boss; 11. a compartment; 12. an insulating bushing ring; 13. a micro motor; 14. a gear; 15. a bearing; 15a, outer ring: 15b, inner ring: 16. gear teeth; 17. a fixing plate; 18. a movable plate; 19. a rubber pad; 20. a buckle rod; 21. a guide block; 22. a chamber; 23. a return spring; 24. connecting columns; 25. a connecting plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Example 1:

referring to fig. 1-2, a transformer capable of improving maintenance efficiency includes a transformer body 1 and a porcelain bushing 2 installed on the top of the transformer body 1, a conductive rod 4 is vertically inserted into the porcelain bushing 2, a porcelain cap 5 is sleeved on the conductive rod 4 and on the top of the porcelain bushing 2, and a gasket 6 is further disposed on the top of the porcelain cap 5.

And a pressure-bearing structure 700 is arranged on the top of the gasket 6 on the conducting rod 4, and the pressure-bearing structure 700 is in threaded connection with the conducting rod 4.

Still include, set up in pressure-bearing structure 700 top and with the structure 800 of pressing that conducting rod 4 activity cup jointed, press structure 800 and press the joint on pressure-bearing structure 700.

Referring to fig. 3, the pressure-bearing structure 700 includes a base 7 in threaded connection with the conductive rod 4, a guide groove 9 is formed on the ring surface of the base 7 near the top, a raised guide separation protrusion 10 is arranged in the middle of the guide groove 9, and the guide groove 9 cooperates with the guide separation protrusion 10 to form two channels.

Further, the base 7 is screwed to press the porcelain cap 5 to fix the top of the porcelain sleeve 2.

Referring to fig. 6 or 8, the guide groove 9 and the guide partition protrusion 10 are obliquely formed on the base 7, and an outer groove wall of one side of the guide groove 9 is arc-shaped and protruded toward an outer side thereof.

Referring to fig. 3-4 and 10, the pressing structure 800 includes a pressing block 8, a separation chamber 11 is disposed at the bottom of the pressing block 8, an insulating bushing ring 12 is sleeved inside the separation chamber 11 on the conductive rod 4, one side of the annular side wall of the insulating bushing ring 12 is a plane, a micro motor 13 is fixed on the insulating bushing ring 12 corresponding to the plane, and a gear 14 is connected to an output shaft of the micro motor 13 in a transmission manner.

Furthermore, the compartment 11 is made of an insulating material.

Further, the compartment 11 may also be a transparent visual material.

Referring to fig. 3-4 and fig. 10, the pressing structure 800 further includes a bearing 15 disposed on the insulating bushing 12, and the top of the outer ring 15a of the bearing 15 is provided with gear teeth 16 in an array around the center of the bearing 15.

Referring to fig. 5, the outer ring 15a of the bearing 15 is higher than the inner ring 15b of the bearing 15, and is disposed on the top of the outer ring 15a, and the gear teeth 16 are engaged with the gear 14.

Referring to fig. 4, the pressing structure 800 further includes a fixed plate 17 and a movable plate 18 disposed on an outer circumferential surface of the bearing 15, one end of the fixed plate 17 is fixed to the bearing 15, the other end of the fixed plate 17 is movably connected to the movable plate 18, a joint end of the fixed plate 17 and the movable plate 18 is disposed in an arc shape, and a tail end of the movable plate 18 is not in contact with an annular wall of the bearing 15.

Furthermore, a return spring 23 is arranged at the rotational joint of the fixed plate 17 and the movable plate 18, and the movable plate 18 can be reciprocally returned to be level with the fixed plate 17.

Further, when the micro motor 13 is started, the gear 14 on the micro motor 13 is meshed with the driving gear teeth 16 to rotate, the outer ring 15a of the bearing 15 and the fixed plate 17 fixed on the outer ring 15 rotate along with the rotation, the electric wire for insulation maintenance test passes through a hollow groove formed between the fixed plate 17 and the movable plate 18, the fixed plate 17 and the movable plate 18 limit the electric wire at the same time, when the micro motor 13 rotates, the electric wire is driven to rotate around the outer ring 15a in an annular shape, when the electric wire of the individual conducting rod 4 is wound, the micro motor 13 stops moving, because the tail end of the movable plate 18 is not in contact with the annular wall of the bearing 15, the wound electric wire is stirred downwards to be separated from the fixed plate 17 and the movable plate 18, at the moment, the electric wire is still positioned on the bearing 15, the electric wire is pulled to the next conducting rod 4 (when the electric wire is pulled, the bearing 15 rotates along with the rotation), and so on the rest until the electric wire on the conducting rods 4 is completely wound, compare with the fixed mode of traditional manual work winding one by one, convert the winding operation mode of manual work into electric drive winding, only need the manual work pull the direction to each conducting rod 4 on.

Further, the insulating lining ring 12, the micro motor 13, the gear 14, the bearing 15, the gear teeth 16, the fixed plate 17 and the movable plate 18 are combined to form an automatic wire rewinding mechanism.

Referring to fig. 5, the conductive rod 4 is further provided with a rubber pad 19 mounted on the top of the pressing structure 800, the rubber pad 19 is located between the pressure-bearing structure 700 and the pressing structure 800, and the rubber pad 19 is annularly protruded corresponding to the inner diameter of the compartment 11 and attached to the inner wall of the compartment 11.

Further, a rubber gasket 19 seals the inner cavity of the protection compartment 11.

Referring to fig. 5 or 9, the compartment 11 is pressed on top of the base 7 with a rubber pad 19 therebetween, the bearing 15 is located at the top of the cavity of the compartment 11, and the conductive rod 4 inside the compartment 11 between the insulating lining ring 12 and the rubber pad 19 forms an exposed conductive segment, forming a detection segment S for an insulation maintenance test.

Furthermore, after the preparation of winding operation is completed, the winding part coil moves down to the detection section S from the outer ring 15a of the bearing 15, and the electric wire at the terminal is tensioned to enable the electric wire to be tightly attached to the detection section S, so that the subsequent power-on maintenance test is facilitated.

Referring to fig. 6-7, a plurality of buckling rods 20 are obliquely arranged on the bottom surface of the pressing block 8, the plurality of buckling rods 20 are arranged in a central annular array of the pressing block 8, the inclination angles of the buckling rods 20 are consistent with those of the guide grooves 9, guide blocks 21 are arranged on the inner annular surfaces of the plurality of buckling rods 20, a cavity 22 is formed in each guide block 21, a return spring 23 is fixed in each cavity 22, a connecting column 24 connected with the return spring 23 is installed at a proximal port of each cavity 22, and a connecting plate 25 is arranged at the bottom of each connecting column 24;

the cavity 22, the return spring 23 and the connecting column 24 are axially consistent with the inclined axis of the pressing block 8.

Furthermore, when the connecting plate 25 is pressed, the connecting column 24 supports the return spring 23 in a compressed state, and when the return spring 23 is released, the pressure is released by the return spring 23, so that the whole pressing block 8 has upward elasticity, the compartment 11 is convenient to open, and the force-assisting effect is achieved.

Furthermore, the bottom of the buckle rod 20 is inserted into the guide groove 9 to engage the guide block 21, and since the outer groove wall of one side of the guide groove 9 is arc-shaped and protruded towards the outer side thereof, when the guide block 21 is pushed to be inserted into the groove, the guide block 21 is pushed by the inner wall of the guide groove 9 which is arc-shaped and protruded to gradually push the inner bottom of the guide groove 9, the guide partition 10 inside the guide groove 9 forms the groove of the U, at this time, the guide block 21 is positioned at the bottom of the guide partition 10 and abuts against the guide partition 10, the pressing and engaging action is completed, the side opposite to the inner wall of the arc-shaped protrusion inside the guide groove 9 rotates to push the guide block 21 into the other groove, the limit of the guide block 21 is released, the separation chamber 11 is opened, the automatic take-up mechanism is exposed, and the winding preparation work is performed.

Open the fixed structure in top through the joint mode between pressing structure 800 and the pressure-bearing structure 700, mutually support with above-mentioned automatic admission machine, eliminate the manual work wind the electric wire one by one and take out fastening screw's used time difference one by one, reduce time loss, promote maintenance efficiency.

Referring to fig. 6, the number of the buckling rods 20 is the same as that of the guide grooves 9, and the pressing block 8 is detachably clamped inside the guide grooves 9 through the buckling rods 20.

Further, the compartment 11 is disposed inside the plurality of the fastening rods 20, and the outer wall of the compartment 11 is fixed to the plurality of the fastening rods 20.

When in use: because the outer groove wall of one side of the guide groove 9 is in an arc-shaped convex shape towards the outer side, when the guide block 21 is pushed to be inserted into the groove, the guide block 21 is pushed by the inner wall of the guide groove 9 in the arc-shaped convex shape to gradually push the inner bottom of the guide groove 9, the guide isolating protrusion 10 in the guide groove 9 enables the guide groove 9 to form a U-shaped groove, at the moment, the guide block 21 is positioned at the bottom of the guide isolating protrusion 10 and is abutted against the guide isolating protrusion 10, the action of pressing and clamping is completed, one side opposite to the inner wall of the arc-shaped convex shape in the guide groove 9 rotates to push the guide block 21 to the other groove, the guide block 21 is relieved, the separation chamber 11 is opened, the automatic take-up mechanism is exposed to carry out winding preparation work, the electric wire for insulation maintenance test passes through a space formed between the fixed plate 17 and the movable plate 18 by starting the micro motor 13, the gear 14 on the micro motor 13 is meshed with the driving gear 16 to rotate, the outer ring 15a fixed plate 17 a bearing 15 and a fixed plate 17 fixed on the outer ring 15 to rotate, the fixed plate 17 and the movable plate 18 limit the electric wire at the same time, when the micro motor 13 rotates, the electric wire is driven to rotate annularly and is wound on the outer ring 15a, after the electric wire of the individual conducting rod 4 is wound, the micro motor 13 stops moving, because the tail end of the movable plate 18 is not in annular wall contact with the bearing 15, the wound electric wire is stirred downwards to be separated from the fixed plate 17 and the movable plate 18, the electric wire is still positioned on the bearing 15 at the moment, the electric wire is pulled to the next conducting rod 4 (the bearing 15 rotates along with the electric wire when being pulled), the electric wire is wound completely on the conducting rod 4 by analogy, compared with the traditional manual one-by-one winding fixing mode, the manual winding operation mode is converted into electric power driving winding, and only the manual traction guiding is needed to each conducting rod 4.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.