A coil winding feeder device for oil-immersed transformer

Abstract

The present invention relates to the field of coil winding technology, and specifically discloses a coil winding feeder device for an oil-immersed transformer, comprising: a first U-shaped frame, two symmetrical U-shaped plates are arranged on the first U-shaped frame, a tensioning wheel is arranged inside the U-shaped plate, and a first driving component and a second adjusting component are arranged on the first U-shaped frame. The coil winding feeder device of the present invention can reduce the pulling force on the coil mold when the cable is wound, and improve the coil winding quality through the cooperation of the U-shaped plate, the tensioning wheel first driving component and the second adjusting component.

Description

Technical Field

[0001] The invention relates to the technical field of coil winding, and in particular to a coil winding feed-in device for an oil-immersed transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main internal components are coils and iron cores. In the production of low-voltage coils, the cable needs to be pulled out from the reel and wound into a coil through a coil winding processing device.

[0003] A Chinese patent document with the announcement number CN114300262B discloses a coil winding and pressing device for a power transformer core winding, which relates to the technical field of transformer coil production equipment. The coil winding and pressing device for a power transformer core winding comprises a base, the upper end surface of the base is provided with a reel mechanism for winding the coil through a support plate, a connecting rod is fixedly connected to the lower part of the outer wall of the first piston, and the lower end of the connecting rod is fixedly connected to the upper end surface of the bearing plate through a strip groove, a second piston is slidably connected inside the branch pipe, a first spring telescopic rod is fixedly connected to the lower end surface of the second piston, a fixed block is fixedly connected to the lower end of the first spring telescopic rod, and a pressure plate is fixedly connected to the end surfaces of the fixed blocks that are close to each other through the second spring telescopic rod.

[0004] When the above-mentioned winding equipment winds the cable on the coil mold, the cable is wound from the head end of the coil mold to its tail end, and then wound from the tail end to its head end, so as to carry out circular winding of multiple layers of cables; and when the cable is circularly wound at both ends of the coil mold, the position of the cable is also changing, and the position of the guide is fixed. When the cable is guided and transported by the guide, the number of layers on the coil mold will gradually increase as the cable is wound, and the coil mold will increase the pulling force on the cable as the number of layers increases, which will cause uneven pulling force on the cable, and easily cause deformation and damage of the cable, especially when winding thin cables. The problem is more obvious. Summary of the invention

[0005] The present invention provides a wire feeding device for winding an oil-immersed transformer coil, aiming to solve the problem in the background technology that the coil mold increases the pulling force on the cable as the number of layers increases, thereby causing uneven pulling force on the cable and easily causing deformation and damage of the cable.

[0006] The oil-immersed transformer coil winding wire feeding device of the present invention comprises: a mounting frame and a right machine body, wherein the right machine body is arranged on the mounting frame, and a wire feeding mechanism is arranged on the right machine body for conveying and winding the cable;

[0007] A left machine body is arranged on one side of the mounting frame, and a winding roller is arranged on the left machine body for driving a coil mold mounted on the surface thereof to wind the cable;

[0008] The clamping member is arranged on the left body, and the clamping member includes a first U-shaped frame, two symmetrical U-shaped plates are arranged inside the first U-shaped frame, and a tensioning wheel is arranged inside the U-shaped plate. A channel is arranged between the two tensioning wheels for clamping and guiding the cables on the winding and reeling rollers. The U-shaped plate has a first state and a second state. When the U-shaped plate is in the first state, it slides horizontally in the transverse direction, and when the U-shaped plate is in the second state, it slides up and down in the longitudinal direction. The U-shaped plate can switch to the second state in the first state, so that the trajectory of the U-shaped plate when sliding transversely is wavy. When the U-shaped plate is in the first state, the tensioning wheel can keep the cable parallel to the winding position of the coil mold. When the U-shaped plate switches to the second state in the first state, the tensioning wheel can adjust the height of the cable guiding and conveying as the angle of the coil mold changes.

[0009] Preferably, the first driving assembly is disposed on the first U-shaped frame, and is used to drive the U-shaped plate to the first state.

[0010] Preferably, the first driving assembly includes a reciprocating screw connected to the first driving assembly through a transmission assembly, the transmission assembly includes gears respectively mounted on the winding roller and the reciprocating screw, and a synchronous belt is installed between the two gears;

[0011] When the winding roller rotates, the reciprocating screw can be driven to rotate through the transmission assembly, so that the rotation speeds of the reciprocating screw and the winding roller are the same.

[0012] Preferably, a sliding ring is connected to the surface of the reciprocating screw, a sliding block is connected to the inner wall of the sliding ring, and the sliding block is slidably connected to the inside of the screw groove on the surface of the reciprocating screw, L-shaped side plates are fixed on both sides of the sliding ring, and support arms are provided on the L-shaped side plates;

[0013] The reciprocating screw drives the support arm through the sliding ring and the L-shaped side plate to enable the U-shaped plate to enter the first state.

[0014] Preferably, the bottom of the U-shaped plate located at the lower side of the first U-shaped frame is rotatably connected to a chassis, a second U-shaped frame is arranged at the lower side of the chassis, and the top end of the support arm is fixed to the outer wall of the second U-shaped frame;

[0015] The L-shaped side plate cooperates with the support arm to drive the second U-shaped frame to slide, thereby maintaining the clamping of the tensioning wheel on the cable.

[0016] Preferably, a limiting opening is provided in the middle of the second U-shaped frame, a limiting block is slidably connected inside the limiting opening, and the top of the limiting block is fixed to the bottom of the chassis, four limiting protrusions are fixed on the inner wall of the limiting opening, and four groups of circular slots corresponding to the limiting protrusions are provided on the surface of the limiting block;

[0017] The limiting protrusion cooperates with the circular slot to limit the limiting block and maintain the stability of the chassis.

[0018] Preferably, the first adjustment component is disposed on the first driving component, and can enable the U-shaped plate to switch to the second state when in the first state.

[0019] Preferably, the first adjustment assembly comprises a first linkage plate fixed on the inner wall of the first U-shaped frame, a wavy sliding track is provided on the first linkage plate, a sliding column is fixed on the inner wall of the second U-shaped frame, and the sliding column is located inside the sliding track;

[0020] The second U-shaped frame cooperates with the sliding column to slide inside the sliding track, so that the U-shaped plate and the tensioning wheel can cycle between upward sliding and downward sliding.

[0021] Preferably, a second adjustment component is installed on the first U-shaped frame, which can move the U-shaped plate and the tensioning wheel upward to increase the height of the conveying cable and adjust the tension of the cable wound on the coil mold.

[0022] Preferably, the second adjustment assembly comprises a side frame arranged at the top of the first U-shaped frame, an arc-shaped extrusion block is fixed on the inner wall of the side frame, a slide groove is opened on the top of the first U-shaped frame, a T-shaped piece is slidably connected inside the slide groove, and the bottom of the T-shaped piece is fixed to the top of the U-shaped plate with the inner cavity facing downward, a first outer ring is fixed on the surface of the step column of the T-shaped piece, a second outer ring is rotatably connected to the top of the first outer ring, two symmetrical outer arc plates are fixed on the surface of the second outer ring, and a plurality of arc-shaped end plates are fixed on the outer surface of the outer arc plate;

[0023] The arc-shaped extrusion block cooperates with the arc-shaped end plate to drive the T-shaped piece to move upward, thereby adjusting the height of the U-shaped plate and the tensioning wheel.

[0024] The beneficial effects of the present invention are:

[0025] 1. Through the first U-shaped frame arranged on the left body, the U-shaped plate and the reciprocating screw arranged on the first U-shaped frame, the tensioning wheel arranged on the U-shaped plate, the sliding ring and the L-shaped side plate arranged on the reciprocating screw, and the driving support arm arranged between the L-shaped side plate and the U-shaped plate, the sliding ring drives the U-shaped plate to slide horizontally through the L-shaped side plate and the support arm through the rotation of the reciprocating screw, so that the tensioning wheel can change according to the position of the cable winding and conveying, and keep the cable parallel to the winding position of the coil mold for winding.

[0026] 2. Through the first linkage plate arranged on the first U-shaped frame, the sliding track opened on the first linkage plate, the side plate and the sliding column arranged on the U-shaped plate, when the sliding column slides inside the sliding track, the U-shaped plate can slide up and down, and the sliding up and down of the U-shaped plate is repeated, thereby reducing the pulling force of different strengths generated by the coil mold when the cable is wound.

[0027] 3. Through the second adjustment component arranged on the first U-shaped frame, when the cable on the surface of the coil mold is wound with multiple layers, the U-shaped plate and the tensioning wheel can be driven to move up in height, so as to maintain the tension of the cable when it is transported and wound to the coil mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the overall structure of the present invention from another viewing angle.

[0030] Figure 3 It is a structural schematic diagram of the first driving component in the present invention.

[0031] Figure 4 It is a structural schematic diagram of the second U-shaped frame in the present invention.

[0032] Figure 5 It is a schematic structural diagram of the second regulating component in the present invention.

[0033] Figure 6 It is a structural schematic diagram of the side frame in the present invention.

[0034] Figure 7 It is a structural schematic diagram of the first three-dimensional cross-section of the second outer ring in the present invention.

[0035] Reference numerals:

[0036] 10. Mounting frame; 11. Left machine body; 12. Right machine body; 14. Winding roller; 16. Clamping member; 160. First U-shaped frame; 161. U-shaped plate; 162. Tensioning wheel; 163. Slide groove; 164. T-shaped member;

[0037] 20. First drive assembly; 21. Reciprocating screw; 22. Sliding ring; 23. L-shaped side plate; 24. Support arm; 25. Chassis; 26. Limit opening; 27. Limit block; 28. Limit protrusion; 29. ​​Second U-shaped frame;

[0038] 30. First adjustment assembly; 32. First linkage plate; 33. Sliding track; 35. Sliding column;

[0039] 40. Second adjustment assembly; 41. First outer ring; 42. Push plate; 43. Side frame; 44. Push column; 45. Second outer ring; 46. Circular receiving groove; 47. Hollow limit block; 48. Arc-shaped end plate; 49. Arc-shaped extrusion block. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0041] Embodiment 1

[0042] like Figures 1 to 4 As shown, the oil-immersed transformer coil winding wire feeding device of the present invention includes a mounting frame 10, a left body 11 and a right body 12, the left body 11 is installed on one side of the mounting frame 10, and the right body 12 is installed on the mounting frame 10 by bolts and nuts, a motor is installed inside the left body 11, a winding roller 14 is installed on the surface of the left body 11, and the output end of the motor extends out of the left body 11 and is connected to the winding roller 14, a clamping member 16 is provided on the left body 11, a coil mold is installed on the surface of the winding roller 14, and the coil mold is elliptical, and a wire feeding mechanism is installed on the right body 12 for conveying the cable to the winding roller.

[0043] The clamping member 16 includes a first U-shaped frame 160 fixed to the left body 11 through a support arm 24, and the inner cavity of the first U-shaped frame 160 faces the ground. Two symmetrical U-shaped plates 161 are arranged inside the first U-shaped frame 160, and the inner cavities of the two U-shaped plates 161 correspond to each other. A side support arm is fixed between the two U-shaped plates 161. The inner walls of the two U-shaped plates 161 are rotatably connected with tensioning wheels 162. A channel is provided between the two tensioning wheels 162 for clamping cables, thereby squeezing and limiting the cables. A slide groove 163 is provided at the top of the first U-shaped frame 160, and the length of the slide groove 163 is greater than the length of the winding roller 14 and the coil mold. A T-shaped piece 164 is slidably connected inside the slide groove 163, and the bottom of the T-shaped piece 164 is fixed to the top of the U-shaped plate 161 with the inner cavity facing downward.

[0044] The U-shaped plate 161 has a first state and a second state. The first state has leftward sliding and rightward sliding, and the leftward sliding is in a straight line with the trajectory of the rightward sliding. When the U-shaped plate 161 is in the first state, it slides horizontally in the transverse direction. The second state has upward sliding and downward sliding, and when the U-shaped plate 161 is in the second state, it slides up and down in the longitudinal direction. The U-shaped plate 161 can switch to the second state in the first state, so that the U-shaped plate 161 slides in a wave shape, and the U-shaped plate 161 can cycle between the first state and the second state.

[0045] Since the ends of the coil mold and the slide groove 163 close to the left body 11 are both the head ends, the other ends are both the tail ends. When in use, the cable passes through the channel between the tensioning wheels 162 through the wire feeding mechanism and is wound at the head end of the coil mold. Then the output end of the motor drives the coil mold to rotate around its middle through the winding roller 14 for winding.

[0046] As the winding roller 14 rotates, the cable on the coil mold is wound from the head end to the tail end of the coil mold, and at the same time the U-shaped plate 161 will also slide along the extension direction of the slide groove 163. At this time, the U-shaped plate 161 cycles between the left sliding and the right sliding in the first state to slide linearly, so as to keep the cable parallel to the winding position of the coil mold.

[0047] When the coil mold rotates from a parallel state to a vertical state, the U-shaped plate 161 changes from sliding upward in the second state to sliding upward, and the U-shaped plate 161 moves upward and resets to the initial height, and the tensioning wheel 162 is used to maintain the pulling force applied to the cable during winding. When the coil mold rotates from a vertical state to a parallel state, the U-shaped plate 161 changes from sliding upward in the second state to sliding downward, and the U-shaped plate 161 drives the tensioning wheel 162 to move downward and reset to the initial height, thereby maintaining uniform pulling force applied to the cable during winding. When the cable on the coil mold is wound, the cable clamped on the tensioning wheel 162 is removed from the coil mold by an instrument, and then the coil mold after winding is removed, and then the coil mold that needs to be wound with the cable is installed again, and the above operation is repeated.

[0048] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first U-shaped frame 160 is provided with a first driving assembly 20, which can drive the U-shaped plate 161 to the first state when the cable is wound from one side of the coil mold to the other side thereof, thereby maintaining the stability of the cable during winding.

[0049] The first drive assembly 20 includes a reciprocating screw 21 connected to the first drive assembly 20 through a transmission assembly. The length of the screw groove on the surface of the reciprocating screw 21 is the same as the length of the coil mold. The end of the reciprocating screw 21 close to the left body 11 is the head end, and the other end is the tail end. The transmission assembly includes gears respectively installed on the winding roller 14 and the reciprocating screw 21. A synchronous belt is installed between the two gears. When the winding roller 14 rotates, the reciprocating screw 21 can be driven to rotate through the transmission assembly, thereby keeping the reciprocating screw 21 and the winding roller 14 at the same speed.

[0050] A circular hole is provided on the surface of one side of the first U-shaped frame 160 close to the left body 11, and one end surface of the reciprocating screw 21 is rotatably connected to the inside of the circular hole, and the diameter of the reciprocating screw 21 is smaller than the diameter of the circular hole, and the other end of the reciprocating screw 21 is rotatably connected to the other side surface of the first U-shaped frame 160, a sliding ring 22 is connected to the surface of the reciprocating screw 21, a slider is connected to the inner wall of the sliding ring 22, and the slider is slidably connected to the inside of the screw groove on the surface of the reciprocating screw 21, L-shaped side plates 23 are fixed on both sides of the sliding ring 22, and a support arm 24 is arranged on the upper side of the L-shaped side plate 23, a receiving groove is provided on the top of the L-shaped side plate 23, and the bottom end of the support arm 24 is slidably connected to the inside of the receiving groove.

[0051] The bottom of the U-shaped plate 161 located at the lower side of the first U-shaped frame 160 is rotatably connected to the chassis 25 for supporting the U-shaped plate 161, thereby maintaining the stability of the U-shaped plate 161 when sliding. A second U-shaped frame 29 is provided on the lower side of the chassis 25, and the top of the support arm 24 is fixed to the outer wall of the second U-shaped frame 29. The L-shaped side plate 23 cooperates with the support arm 24 to drive the second U-shaped frame 29 to slide, thereby maintaining the clamping performance of the tensioning wheel 162 on the cable. A limited opening 26 is provided in the middle of the second U-shaped frame 29, and the inner sliding of the limited opening 26 A limiting block 27 is connected, and the top of the limiting block 27 is fixed to the bottom of the chassis 25, which is used to limit the chassis 25, thereby maintaining the stability of the chassis 25 when it moves up and down. Four limiting protrusions 28 are fixed to the inner wall of the limiting opening 26, and the distances between the four limiting protrusions 28 are equal. The surface of the limiting block 27 is provided with four groups of circular grooves corresponding to the limiting protrusions 28, and the distances between the four groups of circular grooves are equal. The limiting protrusions 28 cooperate with the circular grooves to limit the limiting block 27, thereby maintaining the stability of the limiting block 27.

[0052] After the cable passes through the accommodation gap between the two tensioning wheels 162 and is installed on the head end of the coil mold, the motor is turned on. When the output end of the motor drives the winding roller 14 to rotate, the winding roller 14 drives the reciprocating screw 21 to rotate synchronously through the transmission assembly, and the sliding ring 22 drives the second U-shaped frame 29 to slide along the axial direction of the reciprocating screw 21 through the L-shaped side plate 23 and the support arm 24.

[0053] When the second U-shaped frame 29 slides from the head end of the reciprocating screw 21 to its tail end, the U-shaped plate 161 is in the rightward sliding in the first state, and the U-shaped plate 161 slides from the head end of the slide groove 163 to its tail end. When the U-shaped plate 161 slides from the tail end of the reciprocating screw 21 to its head end, the U-shaped plate 161 is in the leftward sliding in the first state, and the U-shaped plate 161 slides from the tail end of the slide groove 163 to its head end. When the sliding ring 22 slides back and forth on the reciprocating screw 21, the cable is also cyclically wound between the head end and the tail end of the coil mold, thereby maintaining the U-shaped plate 161 to drive the tensioning wheel 162 to adjust and slide along the winding direction of the cable coil mold, thereby guiding the cable to the coil mold winding position, thereby keeping the coil mold winding position matched with the cable conveying position.

[0054] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a first adjustment component 30 is provided on the first U-shaped frame 160. When the elliptical coil mold is used for cable winding, the U-shaped plate 161 can be changed from the first state to the second state, thereby driving the tensioning wheel 162 to slide up and down, thereby reducing the pulling force of different strengths generated when the cable is wound by the elliptical coil mold.

[0055] The first adjustment assembly 30 includes a first linkage plate 32 fixed on the inner wall of the first U-shaped frame 160, and the length of the first linkage plate 32 is greater than the length of the reciprocating screw 21. A wavy sliding track 33 is provided on the first linkage plate 32, and the length of the sliding track 33 is equal to the length of the reciprocating screw 21. A sliding column 35 is fixed to the inner wall of the second U-shaped frame 29, and the sliding column 35 is located inside the sliding track 33. The second U-shaped frame 29 cooperates with the sliding column 35 to slide inside the sliding track 33, so that the U-shaped plate 161 and the tensioning wheel 162 can cycle between upward sliding and downward sliding.

[0056] Since the initial position of the sliding column 35 is located at the head end of the sliding track 33, and when the sliding column 35 is at the initial position, the coil mold is also in a parallel state. As the output end of the motor drives the coil mold on the winding roller 14 to rotate around its middle, the coil mold rotates from the parallel state to the vertical state, and the sliding column 35 slides from the bottom end of the sliding track 33 to its top end. The sliding column 35 drives the U-shaped plate 161 to move upward through the second U-shaped frame 29. At this time, the U-shaped plate 161 is in the upper sliding in the second state, thereby driving the cable to move upward, reducing the pulling force on the cable when the coil mold rotates and winds.

[0057] As the motor continues to rotate, when the coil mold in the vertical state rotates to the parallel state again, the sliding column 35 slides from the top end of the sliding track 33 to the bottom end thereof. At this time, the U-shaped plate 161 changes from the upward sliding in the second state to the downward sliding, thereby driving the cable to move down and reset to the initial height, thereby reducing the pulling force on the cable during winding, thereby keeping the cable stably wound on the coil mold.

[0058] Embodiment 2

[0059] Since the rotation speed of the winding roller 14 is constant, as the number of coil layers on the coil mold surface of the winding roller 14 increases, its diameter will gradually increase, and the tension on the cable on the coil mold will also increase. Therefore, a second embodiment is proposed to reduce the tension on the cable of the coil mold caused by the increase in diameter.

[0060] refer to Figures 5 to 7 As shown, the difference between the second embodiment and the first embodiment is that a second adjustment assembly 40 is installed on the first U-shaped frame 160 for adjusting the height of the T-shaped piece 164, so that the U-shaped plate 161 and the tensioning wheel 162 move up to adjust the tension of the cable wound on the coil mold.

[0061] The second adjustment component 40 includes a first outer ring 41 fixed on the surface of the step column of the T-shaped piece 164, and two symmetrical push plates 42 are fixed on the outer wall of the first outer ring 41. When the push plates 42 are pushed, the T-shaped piece 164 can be driven to rotate through the first outer ring 41, thereby adjusting the angle of the tensioning wheel 162 so that the cables are cross-wound on the surface of the coil mold, thereby increasing the friction between the cables. Two symmetrical side frames 43 are fixed on the top of the first U-shaped frame 160, and the T-shaped piece 164 is located between the two side frames 43. A push column 44 is fixed on the inner wall of the side frame 43 for pushing the push plate 42, thereby adjusting the guide angle of the U-shaped plate 161 and the tensioning wheel 162.

[0062] The top of the first outer ring 41 is rotatably connected to the second outer ring 45, and the inner wall of the second outer ring 45 is provided with a circular accommodating groove 46. A hollow limit block 47 is fixed to the surface of the step column of the T-shaped piece 164, and the hollow limit block 47 is rotatably connected to the inside of the circular accommodating groove 46. Two symmetrical outer arc plates are fixed to the surface of the second outer ring 45, and an elastic column is arranged between the outer arc plate and the first U-shaped frame 160, and the top of the elastic column is fixed to the bottom of the outer arc plate, and the bottom of the elastic column is slidably connected to the top of the first U-shaped frame 160.

[0063] A plurality of arc-shaped end plates 48 are fixed to the outer surface of the outer arc plate, and the distances between the plurality of arc-shaped end plates 48 are equal. An arc-shaped extrusion block 49 is fixed to the inner wall of the side frame 43. The arc-shaped extrusion block 49 cooperates with the arc-shaped end plate 48 to drive the T-shaped piece 164 to move upward, thereby adjusting the height of the U-shaped plate 161 and the tensioning wheel 162.

[0064] Since the heights of the two arc-shaped end plates 48 are different, when the T-shaped piece 164 slides from the head end of the slide groove 163 to its tail end, the upper arc surface of the arc-shaped extrusion block 49 will press against the lower arc surface of the corresponding arc-shaped end plate 48, and will drive the first outer ring 41 and the second outer ring 45 to move up in height through the arc-shaped end plate 48, and the U-shaped plate 161 will drive the connected limit block 27 to move up as well, and the limit protrusion 28 will slide out of the circular slot, and when the top plane of the arc-shaped extrusion block 49 presses against the bottom plane of the arc-shaped end plate 48, the limit protrusion 28 will slide into the inside of the next circular slot again to limit the limit block 27, and the height adjustment of the tensioning wheel 162 is completed, and the push column 44 will push the push plate 42 to drive the T-shaped piece 164 inside the first outer ring 41 to rotate, thereby adjusting the angle of the tensioning wheel 162 to guide the cable.

[0065] When the T-shaped piece 164 slides back to its head end from the tail end of the slide groove 163 again, the push column 44 at the head end of the slide groove 163 pushes the push plate 42 again. At this time, the rotation direction of the T-shaped piece 164 is opposite to the rotation direction when it is at the tail end. At this time, the T-shaped piece 164 rotates and returns to the initial angle, so that the cables can be cross-stacked on the coil mold. When the T-shaped piece 164 repeatedly slides laterally inside the slide groove 163, the above operation is repeated, so that the tensioning wheel 162 is raised, and the tension of the cable can be adjusted according to the number of cable winding turns, thereby reducing the large pulling force generated when the cable tension becomes larger, and with the angle adjustment of the tensioning wheel 162, the cables can be cross-stacked and wound on the surface of the coil mold, thereby increasing the friction between the cables and improving the stability of the cables. When the cable winding is completed, the T-shaped piece 164 can be manually adjusted to reset the U-shaped plate 161 and the tensioning wheel 162 to their initial heights.

[0066] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A coil winding inlet device for an oil-immersed transformer, characterized in that: include: A mounting frame (10) and a right machine body (12), wherein the right machine body (12) is arranged on the mounting frame (10), and a wire feeding mechanism is provided on the right machine body (12) for conveying and winding the wires; A left machine body (11) is arranged on one side of the mounting frame (10); a winding roller (14) is provided on the left machine body (11) for driving a coil mold mounted on the surface thereof to wind the cable; The clamping member (16) is arranged on the left machine body (11), and the clamping member (16) comprises a first U-shaped frame (160). Two symmetrical U-shaped plates (161) are arranged inside the first U-shaped frame (160). A tensioning wheel (162) is arranged inside the U-shaped plate (161). A channel is arranged between the two tensioning wheels (162) for clamping and guiding the cables on the winding and reeling rollers (14). The U-shaped plate (161) has a first state and a second state. When the U-shaped plate (161) is in the first state, it is horizontally The U-shaped plate (161) slides horizontally downward, and when in the second state, the U-shaped plate (161) slides up and down in the longitudinal direction, and the U-shaped plate (161) can switch to the second state in the first state, so that the track of the U-shaped plate (161) when sliding horizontally is wavy, when the U-shaped plate (161) is in the first state, the tensioning wheel (162) can keep the cable parallel to the winding position of the coil mold, and when the U-shaped plate (161) switches to the second state in the first state, the tensioning wheel (162) can adjust the height of the cable guide conveying as the angle of the coil mold changes.

2. The oil-immersed transformer coil winding wire feeding device according to claim 1, characterized in that: It also comprises a first driving assembly (20), wherein the first driving assembly (20) is arranged on the first U-shaped frame (160) and is used to drive the U-shaped plate (161) to enter a first state.

3. The oil-immersed transformer coil winding wire feeding device according to claim 2, characterized in that: The first drive assembly (20) comprises a reciprocating screw (21) connected to the first drive assembly (20) via a transmission assembly, the transmission assembly comprises gears respectively mounted on the winding roller (14) and the reciprocating screw (21), and a synchronous belt is mounted between the two gears; When the winding roller (14) rotates, the reciprocating screw (21) can be driven to rotate through the transmission assembly, so that the reciprocating screw (21) and the winding roller (14) have the same rotation speed.

4. The oil-immersed transformer coil winding wire feeding device according to claim 3, characterized in that: The surface of the reciprocating screw (21) is connected to a sliding ring (22), the inner wall of the sliding ring (22) is connected to a sliding block, and the sliding block is slidably connected to the inside of the screw groove on the surface of the reciprocating screw (21), L-shaped side plates (23) are fixed to both sides of the sliding ring (22), and a support arm (24) is provided on the L-shaped side plate (23); The reciprocating screw (21) drives the support arm (24) via the sliding ring (22) and the L-shaped side plate (23) to enable the U-shaped plate (161) to enter the first state.

5. The oil-immersed transformer coil winding wire feeding device according to claim 4, characterized in that: The bottom of the U-shaped plate (161) located at the lower side of the first U-shaped frame (160) is rotatably connected to a chassis (25), a second U-shaped frame (29) is provided at the lower side of the chassis (25), and the top end of the support arm (24) is fixed to the outer wall of the second U-shaped frame (29); The L-shaped side plate (23) cooperates with the support arm (24) to drive the second U-shaped frame (29) to slide, thereby maintaining the clamping of the tension wheel (162) on the cable.

6. The oil-immersed transformer coil winding wire feeding device according to claim 5, characterized in that: A limiting opening (26) is provided in the middle of the second U-shaped frame (29), the limiting opening (26) is slidably connected to a limiting block (27) inside, and the top of the limiting block (27) is fixed to the bottom of the chassis (25), four limiting protrusions (28) are fixed to the inner wall of the limiting opening (26), and the surface of the limiting block (27) is provided with four groups of circular grooves corresponding to the limiting protrusions (28); The limiting protrusion (28) cooperates with the circular slot to limit the limiting block (27) and maintain the stability of the chassis (25).

7. The oil-immersed transformer coil winding wire feeding device according to claim 6, characterized in that: It also comprises a first adjustment component (30), wherein the first adjustment component (30) is arranged on the first driving component (20) and is capable of switching the U-shaped plate (161) from the first state to the second state.

8. The oil-immersed transformer coil winding wire feeding device according to claim 7, characterized in that: The first adjustment assembly (30) comprises a first linkage plate (32) fixed on the inner wall of the first U-shaped frame (160), a wave-shaped sliding track (33) is provided on the first linkage plate (32), a sliding column (35) is fixed on the inner wall of the second U-shaped frame (29), and the sliding column (35) is located inside the sliding track (33); The second U-shaped frame (29) cooperates with the sliding column (35) to slide inside the sliding track (33), so that the U-shaped plate (161) and the tensioning wheel (162) can cycle between upward sliding and downward sliding.

9. The oil-immersed transformer coil winding wire feeding device according to claim 8, characterized in that: The first U-shaped frame (160) is provided with a second adjustment assembly (40) capable of moving the U-shaped plate (161) and the tensioning wheel (162) upward to increase the height of the conveying cable, thereby adjusting the tension of the cable wound on the coil mould.

10. The oil-immersed transformer coil winding wire feeding device according to claim 9, characterized in that: The second adjustment assembly (40) comprises a side frame (43) arranged on the top of the first U-shaped frame (160), an arc-shaped extrusion block (49) is fixed to the inner wall of the side frame (43), a slide groove (163) is opened on the top of the first U-shaped frame (160), a T-shaped piece (164) is slidably connected inside the slide groove (163), and the bottom of the T-shaped piece (164) is fixed to the top of the U-shaped plate (161) with the inner cavity facing downward, a first outer ring (41) is fixed on the surface of the step column of the T-shaped piece (164), the top of the first outer ring (41) is rotatably connected to the second outer ring (45), two symmetrical outer arc plates are fixed on the surface of the second outer ring (45), and a plurality of arc-shaped end plates (48) are fixed on the outer surface of the outer arc plate; The arc-shaped extrusion block (49) cooperates with the arc-shaped end plate (48) to drive the T-shaped piece (164) to move upward, thereby adjusting the height of the U-shaped plate (161) and the tensioning wheel (162).

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