Transformer winding tension adjusting mechanism

Abstract

The utility model relates to the technical field of transformer processing, in particular to a transformer winding tension adjusting mechanism which comprises a shell of a barrel structure, a first opening is formed in one axial end of the shell, the other end of the shell is detachably connected with a sealing plate, and a second opening is formed in the sealing plate. A core body is arranged in the shell, the core body is coaxially arranged in the shell, a taper hole is formed in the position, located at the axial center line of the core body, of the core body, a first open hole, the taper hole and a second open hole form a wire penetrating channel allowing a copper wire to penetrate through, the core body is composed of a first component and a second component which are split, and the first component and the second component cooperate with the taper hole to form a radial clamping structure; a movable cavity is formed between the axial rear side of the core body and the panel, an elastic piece capable of stretching out and drawing back in the axial direction of the shell is arranged in the movable cavity, and the elastic piece forms an elastic supporting structure of the core body. According to the utility model, tensioning adjustment can be carried out on a pay-off path in a manner of controlling the copper wire in a non-bending manner, and the problem that the tensioning fluctuation and the winding quality are influenced by the excessive bending of the copper wire caused by the tensioning wheel is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer processing technical field, especially a transformer winding tension adjusting mechanism. BACKGROUND

[0002] The transformer coil is also called winding, has primary winding and secondary winding, and is the cylindrical multilayer coil wound by copper wire or aluminum wire. The winding is often configured with an automatic tension adjusting mechanism on the wire feeding path to ensure that the copper wire can be relatively stably delivered to the winding operation end because the wire feeding and winding speed is not well controlled during the winding process.

[0003] Chinese patent CN117219433A discloses a tension mechanism for transformer winding, which comprises a base including two base plates arranged front and back and two center-symmetrically arranged connecting blocks for connecting the two base plates; an elastic support mechanism is arranged on each connecting block, the elastic support mechanism comprises an elastic telescopic rod, the end of the elastic telescopic rod is connected with a support shaft, and two front and back symmetrically arranged tension wheels are rotatably connected on each support shaft; a reversing wheel is arranged on the left side of the two left tension wheels, the reversing wheel is rotatably connected on a bracket, and the bracket is fixedly connected with the base plate.

[0004] The tension mechanism in the above technical solution is similar to the tension adjusting structure used in most workshops at present, which adopts a tension wheel. The copper wire needs to be wound on the outer peripheral contour of the wheel body of the tension wheel when working, that is, the copper wire will be stretched and deformed into a certain degree of arc shape when passing through each tension wheel. The adjacent tension wheels are often alternately arranged towards each other, so that the copper wire is passively subjected to repeated bending. Because of the good flexibility of the copper wire, the wire type structure cannot be restored in time after passing through the tension wheel, which affects the winding quality after entering the winding operation end, and the passive bending also affects the stability of the tension adjusting during the wire feeding process. UTILITY MODEL CONTENTS

[0005] The utility model provides a transformer winding tension adjusting mechanism, which is beneficial to tension adjusting in a non-bending control copper wire mode on the wire feeding path, avoiding the problem of excessive bending of the copper wire caused by the tension wheel affecting the tension fluctuation and winding quality.

[0006] The utility model is implemented as follows:

[0007] The application discloses a transformer winding tension adjusting mechanism which comprises a shell of a cylinder structure, a first opening is arranged at one end of the shell in an axial direction, an opening is arranged at the other end of the shell, a cover plate is detachably connected to the opening side of the shell, a second opening is arranged on the cover plate and is aligned with the first opening, a core body is arranged in the shell, the core body is coaxially arranged in the shell, a taper hole is arranged at the axial center line of the core body, the taper hole axially penetrates the core body from large in front to small at back, the first opening, the taper hole and the second opening form a threading channel for copper wire threading, the core body is composed of two split first parts and second parts, the first part and the second part cooperatively form a radial clamping structure with the taper hole, the radial clamping structure can radially clamp the copper wire after the copper wire threads, and the copper wire can drive the core body to move to the back side when the copper wire moves to the back end along the axial line.

[0008] On the basis of the above technical scheme, the first part and the second part have an active gap at the adjacent sides, and the taper hole is composed of two symmetrical half-slot holes at the two sides of the adjacent sides of the first part and the second part.

[0009] On the basis of the above technical scheme, the first part and the second part are combined into a two-section variable-diameter rod body structure, a staggered table is arranged at the variable-diameter position, and the staggered table and the inner side wall of the cover plate form double-sided abutting end faces in the extension direction of the elastic member.

[0010] On the basis of the above technical scheme, the staggered table and the inner side wall of the cover plate are provided with a limiting groove matched with the elastic member.

[0011] On the basis of the above technical scheme, the outer side wall of the shell is connected with a mounting frame, and the mounting frame is provided with a mounting hole.

[0012] On the basis of the above technical scheme, the mounting frame is of an X-shaped structure, and the mounting hole is of a strip-shaped through hole structure.

[0013] On the basis of the above technical scheme, the inner wall of the taper hole is provided with an anti-skid pattern close to the back end.

[0014] On the basis of the above technical scheme, the core body is provided with a chamfer groove at the back end of the taper hole.

[0015] On the basis of the above technical scheme, a sleeve ring is movably arranged in the taper hole, and the inner side of the sleeve ring is provided with a taper-shaped through hole for copper wire threading.

[0016] Compared with the prior art, the application has at least the following advantages:

[0017] 1.The utility model discloses a shell, core, sealing plate, elastic member are set up, utilize the conical hole and radial clamping structure in the core, make the copper wire of passing through can drive the core to move to the rear side when moving to the rear end along its axis, correspondingly, set up the elastic member between the core and sealing plate for the elastic offset, control the axial displacement tendency of copper wire to the core, thereby realize the tensioning adjustment effect, adopt the non-bending control copper wire mode and carry out the tensioning adjustment, avoid the copper wire excessive bending problem of traditional tensioning wheel, thereby improve the stability and precision of tensioning adjustment.

[0018] 2.The utility model discloses a simple structure, easy to maintain design scheme can effectively reduce production cost and maintenance cost, simultaneously, avoid the abrasion and deformation of traditional tensioning wheel, thereby prolong the service life of the utility model. ACCURACY

[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment, should be understood, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0020] Figure 1 It is the structural schematic diagram of transformer winding tensioning adjustment mechanism in an embodiment;

[0021] Figure 2 It is the internal structure schematic diagram of Figure 1 ;

[0022] Figure 3 It is the three-dimensional structure schematic diagram of the core in Figure 2 ;

[0023] Figure 4 It is the structure schematic diagram of sealing plate and spring in Figure 1 ;

[0024] Figure 5 It is the structure schematic diagram of anti-skid line in an embodiment;

[0025] Figure 6 It is the structure schematic diagram of chamfered groove in an embodiment;

[0026] Figure 7 It is the installation structure schematic diagram of sleeve ring in an embodiment;

[0027] Figure 8 It is the structure schematic diagram of two reverse combination installations of transformer winding tensioning adjustment mechanism in an embodiment.

[0028] In the figure, the labels are as follows: 100, housing; 101, first threaded hole; 102, first opening; 200, cover plate; 201, second threaded hole; 202, first limiting groove; 203, second opening; 300, core; 301, first part; 302, second part; 310, tapered hole; 311, anti-skid pattern; 320, staggered table; 321, second limiting groove; 330, movable gap; 340, chamfered groove; 350, collar; 400, spring; 500, mounting bracket; 510, mounting hole; 600, movable cavity; a, copper wire. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application.

[0030] In the description of the present application, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to one element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration, and do not represent the only embodiments.

[0032] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0033] Embodiment 1: in conjunction with Figures 1 to 4 The present embodiment discloses a transformer winding tension adjusting mechanism, which aims to adjust the tension by a non-bending control copper wire a mode, to avoid the problem of excessive bending of copper wire a caused by the tensioning wheel affecting the tension fluctuation and winding quality.

[0034] In this embodiment, the transformer winding tension adjusting mechanism specifically comprises a shell 100 of a cylinder structure, the shell 100 is provided with a first opening 102 at one axial end and an opening at the other end, and a cover plate 200 is detachably connected to the opening side of the shell 100, and the cover plate 200 is provided with a second opening 203 aligned with the first opening 102. Figure 2 As shown in the figure, the rear side of the shell 100 is provided with a first threaded hole 101, and the cover plate 200 is provided with a second threaded hole 201 corresponding to the first threaded hole 101, and after the cover plate 200 is installed in place, the second threaded hole 201 is aligned with the first threaded hole 101, and the connection and fixation of the two can be realized by screws.

[0035] The shell 100 is internally provided with a core 300, the core 300 is coaxially arranged in the shell 100, the core 300 is provided with a tapered hole 310 at the axial center line thereof, the tapered hole 310 axially penetrates the core 300 from large diameter to small diameter, and the first opening 102, the tapered hole 310 and the second opening 203 constitute a threading channel for the copper wire a.

[0036] Further, as shown in the figure, Figure 3 The core 300 is composed of two split first and second parts 301 and 302, and the first and second parts 301 and 302 are arranged above and below in the figure. The first and second parts 301 and 302 have an active gap 330 therebetween, which enables the first and second parts 301 and 302 to have a certain degree of radial movement in the inner cavity of the shell 100, and this radial displacement can adapt to the radial clamping of the copper wire a. Specifically, in the free state, the adjacent sides of the first and second parts 301 and 302 are in close contact with each other, and the active gap 330 approaches zero. In this state, the diameter of the core 300 is slightly smaller than the diameter of the inner cavity of the shell 100. When the copper wire a passes through the threading channel, the diameter of the copper wire a is slightly larger than the inner diameter of the small diameter end of the tapered hole 310, and then the copper wire a will stretch the tapered hole 310 after passing through. During this process, the active gap 330 becomes larger, and the outer diameter of the core 300 becomes larger to fit the inner side wall of the shell 100, which is conducive to the axial sliding stability of the core 300 in the shell 100. It should be noted that in actual work, the specifications of the core 300 are selected according to the specifications of the copper wire a used to achieve the above effect, and the clamped copper wire a can continue to smoothly slide axially.

[0037] The tapered hole 310 is composed of two symmetrical half-slot holes at the adjacent sides of the first and second parts 301 and 302. This design makes the core 300 more easily deformed elastically when pushed by the copper wire a, while ensuring the smoothness of the inner wall of the tapered hole 310, avoiding damage to the copper wire a during threading.

[0038] As described above, the first component 301 and the second component 302 can cooperate with the tapered hole 310 to form a radial clamping structure, and the copper wire a after threading is radially clamped, and when the copper wire a moves along the axis to the rear end, the core body 300 can be moved to the rear side.

[0039] Further, the core body 300 is provided with a movable cavity 600 between the rear side and the panel, and the movable cavity 600 is provided with an elastic member capable of extending and retracting along the shell 100 in the axial direction, and the elastic member forms an elastic support structure of the core body 300. The elastic member specifically adopts a spring 400. When the copper wire a moves too fast, the spring 400 will provide an equal counterforce, that is, the core body 300 acts as a damping structure during the feeding process of the copper wire a, and the resistance is increased to reduce the situation that the feeding speed is too fast, thereby achieving the effect of tension adjustment.

[0040] The first component 301 and the second component 302 are combined to form a two-section variable-diameter rod structure, and the variable-diameter portion is provided with a misaligned table 320, and the misaligned table 320 and the inner side wall of the panel form double-sided abutting end faces in the extension and retraction direction of the elastic member. This design not only enhances the structural strength of the core body 300, but also enables the elastic member to maintain stable directionality during extension and retraction, thereby improving the accuracy and stability of the tension adjustment. Further, the misaligned table 320 and the inner side wall of the panel are provided with limiting grooves adapted to the elastic member, which are respectively a first limiting groove 202 and a second limiting groove 321. In this way, when the elastic member deviates during extension and retraction, the limiting grooves can effectively constrain and correct it, thereby ensuring the accuracy and reliability of the tension adjustment.

[0041] Further, the outer side wall of the shell 100 is connected with an installation bracket 500 of an "X" structure, which can improve the strength and stability of the installation bracket 500; and the installation bracket 500 is provided with an installation hole 510 of a strip-shaped through hole structure, which can facilitate adjustment of the installation position of the utility model. In this way, the utility model can be firmly installed on the winding machine through bolts and other fasteners, and is convenient to disassemble and assemble, thereby facilitating upgrading of the existing equipment, and realizing stable tension adjustment of the copper wire a.

[0042] Embodiment 2: based on embodiment 1, combined with Figure 5 As shown in the figure, in order to increase the friction force of the inner wall of the tapered hole 310 on the copper wire a and prevent the copper wire a from slipping or falling off during threading, anti-skid lines 311 can be arranged on the inner wall of the tapered hole 310 close to the rear end. The anti-skid lines 311 are specifically three arc-shaped flanges distributed in front and back, which can stably improve the friction force and ensure that the linkage relationship between the copper wire a and the core body 300 remains stable.

[0043] Embodiment 3: based on embodiment 1, combined with Figure 6As shown, the core 300 is provided with a chamfer groove 340 at the rear end of the tapered hole 310, which is beneficial to avoid excessive jamming of the copper wire a by the rear end of the core 300 when the copper wire a reversely slides, and can protect the copper wire a to a certain extent.

[0044] Embodiment 4: on the basis of embodiment 1, combined with Figure 7 As shown, in order to further protect the copper wire a and improve the passing efficiency, a sleeve ring 350 can be movably arranged in the tapered hole 310, and a tapered through hole for the copper wire a to pass through is arranged on the inner side of the sleeve ring 350. In this way, when the copper wire a passes through, the tapered through hole of the sleeve ring 350 can effectively guide and support the copper wire a, thereby reducing the wear of the copper wire a and improving the passing efficiency. In addition, by using the sleeve ring 350 as a wear part, the service life of the core 300 can be prolonged, and the sleeve ring 350 can move forward and backward in the tapered hole 310 of the core 300, thereby ensuring that the radial clamping of the core 300 to the copper wire a can be stably achieved.

[0045] Embodiment 5: on the basis of embodiment 1, combined with Figure 8 As shown, in this embodiment, the two transformer winding tension adjusting mechanisms are arranged opposite to each other, and are used for bidirectional tension adjustment on the same copper wire a, which can meet the operation requirements of more working conditions.

[0046] The utility model improves the stability and precision of tension adjustment: through adopting the non-bending control copper wire a mode to carry out tension adjustment, the problem of excessive bending of copper wire a caused by traditional tensioning wheel is avoided, thereby the stability and precision of tension adjustment are improved; improve the winding quality: because the excessive bending and damage of copper wire a are avoided, therefore the utility model can effectively improve the winding quality, make the coil more uniform, compact; reduce production cost and maintenance cost: because the utility model adopts simple structure, easy to maintain design scheme, therefore can effectively reduce production cost and maintenance cost. At the same time, because the wear and deformation problems of traditional tensioning wheel are avoided, therefore the service life of the utility model is also prolonged; improve production efficiency: because the utility model can realize the stable tension adjustment of copper wire a, therefore can effectively improve production efficiency, reduce the production interruption and delay caused by breakage and other faults.

[0047] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A transformer winding tension adjustment mechanism, characterized by, The shell (100) comprising a barrel structure, the shell (100) is provided with a first opening (102) at one end in the axial direction, and is provided with an opening at the other end, the opening side of the shell (100) is detachably connected with a cover plate (200), the cover plate (200) is provided with a second opening (203) aligned with the first opening (102); the shell (100) is provided with a core (300) inside, the core (300) is coaxially arranged in the shell (100), the core (300) is provided with a taper hole (310) at the axial center line thereof, the taper hole (310) axially penetrates the core (300) from large to small in the hole diameter, the first opening (102), the taper hole (310) and the second opening (203) constitute a threading channel for the copper wire (a) to pass through, the core (300) is composed of two split first parts (301) and second parts (302), the first part (301) and the second part (302) cooperatively constitute a radial clamping structure with the taper hole (310), which can radially clamp the copper wire (a) after passing through, and the copper wire (a) can drive the core (300) to move to the rear side when moving along the axial line to the rear end; the core (300) is provided with a movable cavity (600) between the axial rear side and the panel, the movable cavity (600) is provided with an elastic member capable of extending and contracting in the axial direction of the shell (100), and the elastic member constitutes an elastic support structure of the core (300).

2. A transformer winding tension adjustment mechanism according to claim 1, wherein The first part (301) and the second part (302) have a movable gap (330) on the adjacent side, and the taper hole (310) is composed of two symmetrical half slot holes on the two sides of the adjacent side of the first part (301) and the second part (302).

3. A transformer winding tension adjustment mechanism as claimed in claim 1, wherein, The first part (301) and the second part (302) are combined into a two-section variable diameter rod body structure, and the variable diameter part is provided with a misalignment (320), and the misalignment (320) and the inner side wall of the panel constitute the double-sided abutting end faces of the elastic member extension direction.

4. A transformer winding tension adjustment mechanism as claimed in claim 3, wherein, The misalignment (320) and the inner side wall of the panel are provided with a limiting groove matched with the elastic member.

5. A transformer winding tension adjustment mechanism as claimed in claim 1, wherein, The shell (100) is connected with a mounting rack (500) on the outer side wall, and the mounting rack (500) is provided with a mounting hole (510).

6. A transformer winding tension adjustment mechanism as claimed in claim 5, wherein, The mounting rack (500) is an "X" type structure, and the mounting hole (510) is a strip-shaped through hole structure.

7. A transformer winding tension adjustment mechanism as claimed in claim 1, wherein, The inner wall of the taper hole (310) is provided with an anti-skid line (311) close to the rear end.

8. A transformer winding tension adjustment mechanism as defined in claim 1, wherein, The core (300) is provided with a chamfer groove (340) at the rear end of the taper hole (310).

9. A transformer winding tension adjustment mechanism as defined in claim 1, wherein, The taper hole (310) is movably provided with a sleeve ring (350), and the inner side of the sleeve ring (350) is provided with a tapered through hole for the copper wire (a) to pass through.

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