CN105553198B

CN105553198B - Quick wire feeder for outer stator motor

Info

Publication number: CN105553198B
Application number: CN201610089360.2A
Authority: CN
Inventors: 万玉吉
Original assignee: Zhengzhou Technology And Business University
Current assignee: Zhengzhou Business College
Priority date: 2016-02-04
Filing date: 2016-02-04
Publication date: 2020-06-05
Anticipated expiration: 2036-02-04
Also published as: CN105553198A

Abstract

Under the drive of a miniature direct current motor, the 'quick winding-off device for the outer stator motor' drives a bent hollow winding needle to rotate like a conical curved surface through a special mechanism, so that an enameled wire is quickly wound in an iron core slot of the outer stator motor, and quick winding-off is realized. Due to the action of the wire supporting fork, the wire is prevented from sliding out of the groove, the end wire of the coil is made to be high, and the shaping of the end wire of the coil is facilitated. Due to the action of the high-low support, cylindrical transmission is changed into conical transmission, the angle of the transmission shaft is adjustable, and quick line inserting of any groove number can be realized.

Description

Quick wire feeder for outer stator motor

Belongs to the technical field of:

the invention relates to a device for a quick wire-inserting device of an outer stator motor, in particular to a device which takes a direct current motor as power and can quickly wind an enameled wire into a stator slot of the outer stator motor, which is a good assistant for motor manufacturers.

Background art:

at present, a motor manufacturer can finish the technical processes of winding coils on a winding die → binding and removing coils → sleeving coils in a coil inserter → discharging coils and the like in the process of discharging coils of a small-sized outer stator motor, and the method has the following defects that ① coil discharging steps are more, the efficiency is low, ② needs a winding machine and a coil inserter, the investment cost is 10-20 ten thousand yuan, the volume and the weight of a ③ coil inserter body are large, the failure rate is high, the maintenance is difficult, the circumference of the ④ coil is large, 1/4 copper wires are wasted, and obviously, the traditional coil discharging method is large in investment, low in efficiency and high in cost.

The purpose of the invention is as follows:

in order to solve the problems that in the process of inserting the wire into the small-sized outer stator motor, the steps are multiple and the efficiency is low; the invention provides a quick wire inserting device for an outer stator motor, which can quickly insert wires into an outer stator motor slot.

The technical scheme is as follows:

winding experiment: as shown in fig. 1, since the inner diameter of the core of the low-power outer stator motor is small, the movement of an arm or other winding device in the inner diameter is greatly limited, and therefore, a hollow stainless steel tube with the outer diameter of 1mm (the inner diameter of 0.6mm) is bent into a bent shape for winding.

Because the minimum width of the motor notch is 2mm, according to experience, a stainless steel pipe can completely wind wires through the notch, and for research convenience, the stainless steel pipe which is provided with two bends and can wind wires into the stator core slot is called a bent wire-winding needle.

In order to prevent the conducting wire from sliding out of the groove and ensure that the end wire is shaped sufficiently, white rubber pads are respectively fixed on the upper part and the lower part of the stator, and the winding effect is obvious.

The rotation method of the curved suture feeding needle comprises the following steps: referring to fig. 2, the outer stator core is horizontally arranged, when viewed from top to bottom, the center lines of two adjacent slots are not parallel, the distance between the two center lines is narrow inside and wide outside, and a certain geometric angle is formed. In order to smoothly wind the enameled wire into the two grooves, the ab section of the bent lower wire needle is required to be vertical to the axis of the outer stator core, and the ed section of the bent lower wire needle is required to be made into an elbow capable of freely rotating.

In the winding process, when the bent bobbin thread drawing needle moves upwards, the ed section elbow naturally faces downwards under the action of the pulling force of the enameled wire, and the rotating ed section moves upwards along a notch to realize winding; when the curved line feeding needle moves downwards, the ed section elbow naturally faces upwards under the action of the pulling force of the enameled wire, and the rotated ed section moves downwards along the other notch to realize winding; when the curved downline needle is simply rotated about the axis of the ab segment, the ed segment bend simply rotates from the vicinity of one notch to the vicinity of the other notch. In a word, in the process of winding a circle, the ed section elbow rotates around the axis of the cd section and revolves around the axis of the ab section, and the enameled wire can be wound into the two grooves.

The technical measures are as follows:

as shown in fig. 3 and 4, to complete the technical scheme, the whole fast wire-descending device of the outer stator motor mainly comprises four parts, including a bent wire-descending needle part, a wire-supporting part, a transmission part, a power part and the like.

Description of the drawings: FIG. 1 is a simulated winding diagram of a curved lower needle; FIG. 2 is a view of a method of rotating the curved suture needle; FIG. 3 is a front view of the outer stator motor quick downlead; FIG. 4 is a partial top view of the outer stator motor quick downlead; FIG. 5 is a curved drop line needle diagram; FIG. 6 is a front view of the "U" shaped splint; FIG. 7 is a top view of the "U" shaped clamp plate; FIG. 8 is an enlarged partial view of the curved lower needle; FIG. 9 is an outer (or high) crosshair subgraph and an inner (or low) crosshair subgraph; fig. 10 is an expanded view of a stator winding of a single-phase 16-slot 4-pole motor; FIG. 11 is a diagram of an outer (or upper) stay wire fork usage; fig. 12 is a diagram after the U-phase coil is shaped; fig. 13 is a diagram of an inner (or lower) stay fork usage.

In the figure, 1-5 is a curved lower line needle, 6 is a transmission shaft, 7 is a shaft sleeve, 8 is a high-low support, 9 is a support plate, 10 is a wide belt, 11 is an outer stator motor iron core, 12 is a four-jaw clamping frame, 13 is a bearing, 14 is a chassis, 15 is a positioning block, 16 is a support column, 17 is a wire supporting fork, 18 is a coil, 19 is a direct current motor, 20 is a U-shaped clamping plate, 21 is a U-phase coil, 22 is a slot wedge, and 23 is a V-phase coil.

The curved lower line needle part: referring to fig. 5, 6, 7 and 8, the curved lower needle portion comprises a bend (or thin end) 1, a sheath 2, a small spring 3, a rubber band 4, a thick end 5 and a 'U' -shaped splint 20.

As shown in FIG. 5, in order to smoothly enter the enameled wire from the end a and exit the end e, the end a is made into a bell mouth shape, and the diameter of the abc section is enlarged.

Referring to fig. 6 and 7, in order to provide power for the curved lower thread needle, a 'U' -shaped clamping plate is fixed on the vertical section of the curved lower thread needle, a hole is arranged on the 'U' -shaped clamping plate, and a shaft is arranged in the hole to be used as a power point.

FIG. 8 is an enlarged view of a portion of the curved needle, wherein 1 is called the elbow (or thin end), 2 is called the sheath, 3 is called the small spring, 4 is called the rubber band, and 5 is called the thick end. The sheath is in a sleeve shape, and the left end of the sheath is provided with a small hole which just allows the thin end of the curved suture needle to penetrate; the right end is provided with a big hole which just can allow the thick end of the curved suture needle to penetrate. The right end of the sheath is fixed with the curved suture needle by a rubber ring. The left end of the spring is fixed with the curved lower thread needle, and the right end of the spring can freely rotate, so that the elbow 1 section can rotate and can freely stretch.

Supporting wire parts: as shown in fig. 9, the wire supporting portion is further divided into an outer (or high) wire supporting fork and an inner (or low) wire supporting fork, wherein the outer (or high) wire supporting fork is used for winding an outer U-phase coil, as shown in fig. 11; the inner (or lower) yoke is used to wind the inner V-phase coil as shown in fig. 13. The shape of the wire supporting fork is like a small square stool, and four legs are arranged below a rectangular plane. The wire supporting fork can be just clamped on the outer edge of the stator core, and the wire cannot easily slide out of the groove under the action of the wire supporting fork, and the shaping of the end wire is facilitated.

The transmission part: as shown in fig. 3 and 4, the transmission part comprises a transmission shaft 6, a shaft sleeve 7, a high-low support 8, a support plate 9, a transmission belt 10 and the like.

In order to enable the curved suture descending needle to move up and down around the two notches to realize rotation, the transmission shaft 6 also needs to rotate like a conical surface, and in order to realize the function, the left end of the transmission shaft is hinged with a shaft on the U-shaped clamping plate, and the right end of the transmission shaft penetrates into the shaft sleeve.

When the left end of the transmission shaft is hinged with the shaft on the U-shaped clamping plate, the transmission shaft is clamped in the middle of the U-shaped clamping plate, and the transmission shaft and the bent lower threading needle are always positioned in a vertical plane, so that the bent lower threading needle is driven to move up and down along the ab direction when the transmission shaft moves up and down; when the transmission shaft rotates around the ab axis, the bent lower line needle is driven to rotate around the ab axis; obviously, the right end of the transmission shaft can also swing up and down around the axis of the U-shaped clamping plate, so that the transmission shaft can drive the bent thread discharging needle to continuously rotate like a conical surface, and the purpose of discharging threads into the groove is fulfilled.

When the right end of the transmission shaft penetrates into the shaft sleeve, the transmission shaft and the shaft sleeve are in clearance fit, and the transmission shaft can freely rotate and stretch in the shaft sleeve, so that the transmission shaft can rotate and revolve.

High-low support: because the number of the slots of the wound stator core is different, the geometric angles formed by the central planes of the two adjacent slots are different, so that the rotation angle of the transmission shaft sleeve can be adjusted at any time along with the difference of the number of the slots to realize the winding of different stator slots, and therefore, an adjustable height bracket is fixed on the transmission belt. The height support is transversely fixed on the surface of wide belt, and the both ends of height support all make the shape of clip, and the upper end of clip has the locking screw. When the shaft sleeve penetrates into the clamp on the high-low support, the angle of the shaft sleeve is adjusted, the curved line inserting needle is located in the middle of the notch, and the transmission belt can drive the curved line inserting needle to realize line inserting in the outer stator motor groove when rotating.

Driving a belt: the drive belt is a conventional flat belt and is driven by a conventional cylindrical pulley driven by a miniature dc motor 19.

A power part:

powered by a micro dc motor 19.

The whole transmission system working process: the DC motor 19 rotates → drives the wide belt 10 to rotate → drives the high-low support 8 to rotate → drives the shaft sleeve 7 to rotate → drives the transmission shaft 6 to rotate → drives the curved thread feeding needle 1-5 to rotate → drives the enameled wire to wind in the slot.

Detailed Description

A common stator winding development diagram of a single-phase 16-slot 4-pole motor is shown in fig. 10, and it is obvious that the winding form is a single-chain type, the connection rule is that the windings are connected in an anti-series mode, the coil pitch is that y is 1-4 slots, and the specific operation process is as follows.

A stator core 11 is fixed on a four-melon clamping frame 12, a wire wheel is fixed at a proper height above a quick wire inserting device of an outer stator motor, an enameled wire penetrates through a bent wire inserting needle, and the lower end of the enameled wire is fixed on the stator core.

Turning the high-low support 8 aside, as shown in fig. 4, loosening the screw, adjusting the angle between the transmission shaft and the shaft sleeve to enable the bent inserting needle to be located in the middle of the winding notch, and then screwing the screw.

When winding the U-phase coil, the outer leg yoke is clamped to the edge of the stator core for winding, as shown in fig. 11. During winding, the wire cannot slide out of the groove due to the action of the wire supporting fork, and the end line of the wound coil is high, so that the end line can be bent aside, and reasonable shaping is realized.

After each winding of a coil, a slot wedge is inserted and the end wire is bent aside to achieve reshaping.

As shown in fig. 10, the coils in the U-phase are connected in reverse series, that is, the connection rule of the tail-to-tail and head-to-head connectors is such that the direct current motor can complete the winding of the first coil in the forward rotation, complete the winding of the second coil in the reverse rotation, and so on.

When one coil is wound, the rotating direction of the direct current motor is changed, the chassis is rotated to the position of the next coil, and the chassis is fixed by means of friction of the positioning block.

Four coils after U-phase shaping, as in fig. 12.

As shown in fig. 13, when winding the V-phase coil, the operation method is similar to the above, but the inner stay wire fork is clamped to the edge of the stator core through between the two U-phase coils for winding, so that the end wire of the wound coil is low, and the end wire shaping is also facilitated.

The invention has the beneficial effects that: the rapid inserting line device for the outer stator motor adopts a bent inserting line needle to insert a line through a notch, and an enameled wire can be directly wound in a stator slot, so that a plurality of steps are omitted, and the position is achieved in one step; the volume is small, the weight is light, and the manufacturing cost is hundreds of yuan; about 1/4 copper wire can be saved.

Claims

1. The utility model provides a quick unwrapping wire ware of outer stator motor, characterized by: a high-low support [8] is transversely fixed on the transmission belt [10], a shaft sleeve [7] is clamped on the high-low support [8], a transmission shaft [6] is connected in the shaft sleeve [7], and the left end of the transmission shaft [6] is hinged with the bent lower thread needles [ 1-5 ]; both ends of the high-low support [8] are made into a clamp shape, a locking screw is arranged at the upper end of the clamp, the locking screw is loosened, the angle of the shaft sleeve [7] is adjusted, the elbow [1] of the bent threading needle [ 1-5 ] is positioned in the middle of the notch of the motor, and the shaft sleeve can be fixed by screwing the locking screw; a U-shaped clamping plate (20) is fixed at the vertical section of the bent lower thread needle (1-5), a transmission shaft (6) is clamped in the middle of the U-shaped clamping plate (20), and a hole in the U-shaped clamping plate (20) is matched with a shaft at the left end of the transmission shaft (6) and then used as a power point to drive the bent lower thread needle (1-5) to rotate; in the rotating process of the transmission shaft [6], when the transmission shaft [6] moves up and down, the bent lower thread needles [ 1-5 ] are driven to move up and down along the axial direction of the vertical sections of the bent lower thread needles [ 1-5 ]; when the transmission shaft (6) rotates around the axis of the vertical section of the bent lower line needle (1-5), the bent lower line needle (1-5) is driven to rotate around the axis of the vertical section of the bent lower line needle (1-5); the right end of the transmission shaft [6] can also swing up and down around the axis of the upper hole of the U-shaped clamping plate, so that the transmission shaft [6] can drive the elbow [1] of the bent thread feeding needle [ 1-5 ] to rotate continuously to complete the thread feeding in the groove; the upper head of the vertical part of the thick end [5] of the bent lower line needle [ 1-5 ] is in a horn mouth shape, and the diameter of the thick end of the bent lower line needle [ 1-5 ] is larger than that of the elbow [1 ]; a spiral small spring [3] is sleeved outside the horizontal section of the elbow [1], and a sheath [2] is sleeved outside the spiral small spring [3 ]; the sheath [2] is in a sleeve shape, and the left end is provided with a small hole which just allows the horizontal end of the elbow [1] to penetrate; the right end is provided with a big hole which just allows the thick end of the curved lower thread needle (1-5) to penetrate; the right end of the sheath [2] and the thick end of the bent lower line needle [ 1-5 ] are fixed by a rubber ring [4 ]; the left end of the spiral small spring [3] is fixed with the horizontal section of the elbow [1], so that the elbow [1] and the spiral small spring [3] can realize autorotation and freely stretch; the wire supporting fork [17] is in a square stool shape, namely a rectangular plane is provided with four legs; the wire supporting fork [17] can be just clamped on the outer edge of the motor iron core [11], and under the action of the wire supporting fork [17], a wire is not easy to slide out of a groove in the winding process, and the shaping of an end wire is facilitated.