CN219180355U - Low-voltage coil winding equipment of oil type transformer - Google Patents

Abstract

The utility model relates to the field of low-voltage coils of transformer coils and discloses low-voltage coil winding equipment of an oil transformer, which comprises a machine body, a driving shaft and a fixing unit, wherein the driving shaft is rotationally connected to the machine body, the fixing unit is detachably connected to one end of the driving shaft, a first baffle is arranged at the other end of the driving shaft, the fixing unit comprises a second baffle, the first baffle and the second baffle can clamp a winding die, the second baffle can cover the end part of the winding die, a plurality of yielding notches are arranged on the second baffle, the yielding notches can allow a coil end of the coil to pass through, and a manual rotating part is formed by the second baffle among the yielding notches so as to stably rotate the winding die and improve the working efficiency.

Description

Low-voltage coil winding equipment of oil type transformer

Technical Field

The utility model relates to the field of low-voltage coils of transformer coils, in particular to low-voltage coil winding equipment of an oil type transformer.

Background

The oil immersed transformer mainly works according to the electromagnetic induction principle. On the closed core, a high voltage coil and a low voltage coil are wound. Because the voltages of each turn of coil in the magnetic field of the iron core are equal, the number of turns of the high-voltage coil is large, the total voltage is large, the current is small, the number of turns of the low-voltage coil is small, the total voltage is small, the current is large, and further the voltage conversion is realized, the coils adopted by the low-voltage coil are thicker, and larger current can be born.

Because the low-voltage coil is thicker, the gap that produces when the low-voltage coil is twined is great, adopts artifical rotatory winding former generally, twines low-voltage coil on the winding former, compares in motor drive winding former is rotatory, and artifical rotatory gap between the coil of being convenient for at any time more to guarantee that interval is even between every turn of coil, avoid the local too much condition that causes the short circuit that generates heat.

The winding die is sleeved on a driving shaft, one end of the driving shaft is provided with a first baffle and is rotationally connected with the machine body, the other end of the driving shaft is provided with a second baffle matched with the first baffle to tightly prop against the winding die, and then the winding die and the driving shaft are driven to rotate together, however, according to the process, a wire end is left at the end part of the low-voltage coil, extends out of the end part of the low-voltage coil by more than 20cm, and is in an overhanging state; in order to prevent short circuit and ensure the insulation effect of the low-voltage coil, the low-voltage coil and the wire ends thereof are all made of paper-covered wires, the paper-covered wires are generally flat in section, the wire ends lack of fixtures in the rotating process, the paper-covered wires with flat sections are inconvenient to wind on the fixtures, the wire ends are easy to throw off, and then the coils at the end parts of the low-voltage coil are thrown off; the operator is usually directly put the hand and is promoted the wire winding mould rotation on the good part of low-voltage coil, and the coil that will have wound is in disorder like this easily, and then leads to the interval inhomogeneous between every turn coil, and first baffle and second baffle are the ring generally, and rocking is less when the ring is rotatory, because the ring outside is the arc, if the operator is through first baffle and the rotatory wire winding mould of second baffle easy hand slip, influences work efficiency.

Disclosure of Invention

The utility model aims to provide low-voltage coil winding equipment of an oil type transformer so as to stabilize a rotary winding die and improve the working efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an oily transformer low-voltage coil winding equipment, including fuselage, drive shaft and fixed unit, the drive shaft rotates to be connected on the fuselage, and fixed unit can dismantle the connection in drive shaft one end, and the drive shaft other end is equipped with first baffle, and fixed unit includes the second baffle, and first baffle and second baffle can press from both sides the wire winding mould tightly, and the second baffle can cover the tip of wire winding mould, is equipped with a plurality of breach of stepping down on the second baffle, and the breach of stepping down can supply the end of a thread of coil to pass, and a plurality of second baffles between the breach of stepping down form manual rotation portion.

The beneficial effect of this scheme is:

1. covering the end part of the winding mould with a second baffle, and further, after the second baffle abuts against the end part of the winding mould, the end part of the low-voltage coil abuts against the second baffle in the process of winding the low-voltage coil, so that the end part of the low-voltage coil is prevented from loosening in the rotating process; however, so set up, the end of a thread of low voltage coil tip has lost the position of holding, so this scheme sets up the breach of stepping down on the second baffle to hold the end of a thread.

2. The lateral wall of the abdication notch and the outer edge of the second baffle form a corner, compared with the fact that the outer edge of the second baffle is grabbed to drive the winding die to rotate, the lateral wall of the abdication notch is grabbed, namely the manual rotating part is grabbed to drive the winding die to rotate, so that the winding die is not easy to slide by hand, the working efficiency is higher, meanwhile, the wound part of the low-voltage coil is not required to be contacted by hands, the wound part is further prevented from being disordered, the uniform interval between each two turns of coils is ensured, and the short circuit caused by excessive local heating is avoided.

Preferably, as an improvement, the relief notch is arc-shaped, and a round corner is arranged on one side of the manual rotating part close to the relief notch. The finger-fitting type hand-operated rotary part is more comfortable for an operator to hold the hand-operated rotary part due to the arrangement; meanwhile, when the thread end is in collision with the side wall of the abdication notch in rotation, compared with the fact that the side wall of the abdication notch is a straight surface, the arc-shaped surface can buffer the collision of the thread end, so that abrasion of the thread end is smaller.

Preferably, as an improvement, the fixing unit comprises a nut, a gasket, a tightening pipe, the nut, the gasket, the tightening pipe, the second baffle and the winding former are sequentially sleeved on the driving shaft, the nut is in threaded connection with the driving shaft, and the nut is tightened against the second baffle through rotation. So arranged, the following effects can be produced:

1. through screwing up the nut, and then support tightly to support tightly the pipe through the gasket, and then support tightly the wire winding mould through second baffle and first baffle mutually supporting, then twine low-voltage coil on the wire winding mould, accomplish the winding back, unscrew the nut, take off the gasket in proper order, support tightly pipe and second baffle, and then take off wire winding mould and low-voltage coil together.

2. The gasket can increase the contact area of the nut and the abutting pipe, and has a buffering effect.

Preferably, as a modification, a rectangular inner hole is formed in the winding former, the section of the contact part between the driving shaft and the inner hole is rectangular, and the inner hole is matched with the driving shaft. The arrangement is that the first baffle and the second baffle are abutted against the winding die, the driving shaft and the winding die still can slide relatively after the equipment is aged, the rotating speed of the winding die is not easy to control by operators, gaps among coils are not easy to adjust at any time, and the uniform interval among coils of each turn cannot be ensured; and the driving shaft drives the winding die to rotate together through the inner hole, compared with the driving shaft which uses a circular section, the rectangular section is less likely to cause the driving shaft and the winding die to slide relatively, and the uniform interval between each turn of coils is guaranteed.

Preferably, as a modification, the abutting pipe has a plurality of length dimensions, and abutting pipes of different length dimensions are used according to the length of the winding former. The driving shaft is connected with the machine body, so that the length is fixed, the nut is not convenient to replace, the moving adjusting range of the nut is not too large, otherwise, the time is wasted, and the working efficiency is reduced; therefore, according to the processing requirements, when the size of the winding former becomes long, the abutting pipe of a shorter length needs to be replaced, and when the size of the winding former becomes short, the abutting pipe of a longer length needs to be replaced.

Drawings

Fig. 1 is a front view of embodiment 1 before winding starts;

fig. 2 is a front view of the winding process of embodiment 1;

FIG. 3 is a left side view of the second baffle of example 1;

FIG. 4 is a left side view of the second baffle of example 2;

fig. 5 is a top view of the second baffle of example 2.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the machine body 1, the driving shaft 2, the first baffle plate 3, the winding mould 4, the second baffle plate 5, the yielding notch 501, the manual rotating part 502, the abutting pipe 6, the gasket 7, the nut 8, the low-voltage coil 9 and the thread end 10.

Example 1

Example 1 is substantially as shown in fig. 1-3: the low-voltage coil winding equipment for the oil type transformer comprises a machine body 1, a driving shaft 2 and a fixing unit, wherein the equipment can wind a low-voltage coil 9 on a winding die 4, and a wire end 10 is reserved at the end part of the low-voltage coil 9.

As shown in fig. 1, a machine body 1 is fixed on the ground, a rotating groove is formed in the machine body 1, a driving shaft 2 is rotatably connected in the rotating groove, a first baffle plate 3 is welded on the driving shaft 2 at the left position, a threaded section is arranged at the right end of the driving shaft 2, and the driving shaft 2 between the first baffle plate 3 and the threaded section is a rectangular section with a rectangular section.

The fixing unit comprises a nut 8, a gasket 7, a tight supporting pipe 6 and a second baffle 5, wherein the nut 8, the gasket 7, the tight supporting pipe 6, the second baffle 5 and a winding mould 4 are sequentially sleeved on a driving shaft 2 from right to left, the nut 8 is in threaded connection with a threaded section, the threaded direction of the threaded section is opposite to the rotating direction of the driving shaft, the nut can be screwed down only and cannot loosen in the rotating process of the driving shaft, the nut 8 can tightly support the second baffle 5 through rotation, the first baffle 3 and the second baffle 5 can clamp the winding mould 4, rectangular inner holes are formed in the inner sides of the winding mould 4 and the tight supporting pipe 6, the inner holes can be matched with the rectangular sections on the driving shaft 2, the tight supporting pipe 6 has various length sizes, the tight supporting pipe 6 with different length sizes is used according to the length of the winding mould 4, the tight supporting pipe 6 with shorter length needs to be replaced when the size of the winding mould 4 is changed, and the tight supporting pipe 6 with the longer length needs to be replaced when the size of the winding mould 4 is changed.

The first baffle 3 and the second baffle 5 are both circular, the second baffle 5 can cover the end part of the low-voltage coil 9, as shown in fig. 3, four yielding notches 501 are formed in the upper periphery Xiang Dengju of the second baffle 5, the yielding notches 501 are rectangular in section, the yielding notches 501 can be used for allowing the wire heads 10 of the coil to pass through, and manual rotating parts 502 are formed by the second baffle 5 among the four yielding notches 501.

The specific implementation steps are as follows:

1. the nut 8, the gasket 7, the abutting pipe 6, the second baffle 5 and the winding die 4 are sequentially sleeved on the driving shaft 2, the abutting pipe 6 is abutted through the gasket 7 by tightening the nut 8, and the winding die 4 is abutted through the mutual matching of the second baffle 5 and the first baffle 3.

2. As shown in fig. 2, the end 10 of the wire passes through the yielding gap 501, the end of the low-voltage coil 9 is fixed at the right end of the winding mold 4 through an adhesive tape, so that the second baffle 5 can abut against the end of the low-voltage coil 9, further, the end of the low-voltage coil 9 is prevented from loosening in the rotating process, an operator pushes the manual rotating part 502 to rotate the winding mold 4 with one hand, and winds the low-voltage coil 9 on the winding mold 4 from right to left with the other hand, so as to form a first layer of low-voltage coil 9;

3. the low-voltage coil 9 and the left end of the winding mould 4 are fixed through an adhesive tape, the low-voltage coil 9 is wound on the winding mould 4 from right to left to form a second-layer low-voltage coil 9, and the thread end 10 of the second-layer low-voltage coil 9 passes through the yielding notch 501.

4. The nut 8 is unscrewed, the spacer 7, the abutting pipe 6 and the second baffle 5 are sequentially removed, and the winding former 4 and the low-voltage coil 9 are removed together.

Example 2

Example 2 differs from example 1 in that: as shown in fig. 4 and 5, the relief notch 501 is arc-shaped, and a round corner is arranged on one side of the manual rotating part 502 close to the relief notch 501, and the arc-shaped and round corner are more fit with the fingers of a person, so that an operator can feel more comfortable when holding the manual rotating part 502; meanwhile, when the thread end 10 collides with the side wall of the yielding gap 501 in rotation, compared with the case that the side of the manual rotation part 502 close to the yielding gap 501 is a right angle, the round angle can buffer the collision of the thread end 10, so that the abrasion of the thread end 10 is smaller.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (5)

1. The utility model provides an oily transformer low-voltage coil winding equipment, includes fuselage, drive shaft, and fixed unit, and the drive shaft rotates to be connected on the fuselage, and fixed unit can dismantle the connection in drive shaft one end, and the drive shaft other end is equipped with first baffle, and fixed unit includes the second baffle, and first baffle and second baffle can press from both sides the wire winding mould tight, its characterized in that: the second baffle can cover the tip of wire winding mould, is equipped with a plurality of breach of stepping down on the second baffle, and the breach of stepping down can supply the end of a thread of coil to pass, and a plurality of second baffles between the breach of stepping down form manual rotation portion.

2. The oil transformer low voltage coil winding apparatus of claim 1, wherein: the relief notch is arc-shaped, and one side of the manual rotating part, which is close to the relief notch, is provided with a round corner.

3. The oil transformer low voltage coil winding apparatus of claim 1, wherein: the fixing unit comprises a nut, a gasket, a propping pipe, the nut, the gasket, the propping pipe and a second baffle are sequentially sleeved on the driving shaft, the nut is in threaded connection with the driving shaft, and the nut is propped against the second baffle through rotation.

4. An oil transformer low voltage coil winding apparatus as claimed in claim 3, wherein: a rectangular inner hole is arranged in the winding mould, the section of the contact part of the driving shaft and the inner hole is rectangular, and the inner hole is matched with the driving shaft.

5. The oil transformer low voltage coil winding apparatus of claim 4, wherein: the abutting pipe has various length sizes, and the abutting pipes with different length sizes are used according to the length of the winding mould.

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