KR102020252B1 - Automated slot-wedge assembly device - Google Patents

Abstract

The present invention relates to a semi-automatic slot wedge assembly apparatus, and more particularly, a slot wedge assembly apparatus for inserting and fixing a wedge and a slide in the slot to fix a coil wound in a slot of a generator. As a body portion, the body portion is connected to the body portion, the air supply for supplying compressed air to the body portion, the body portion is provided on one side of the body portion to adhere to the slot, the slot support is formed to protrude toward the slot, The head portion is connected to the body portion and the head portion hitting the slide at regular intervals using the compressed air supplied from the air supply portion and the head portion is the head portion and the head portion to return to the original state after hitting toward the slide By including connected elastic springs, it is possible to provide an automated device dedicated to the assembly of slot wedges. Prevention of musculoskeletal disorders due to the ongoing strike action and, to a semi-automatic assembly equipment Slot wedges Slot wedges assembled to equalize the quality.

Description

Semi-Automatic Slot Wedge Assembly Device {AUTOMATED SLOT-WEDGE ASSEMBLY DEVICE}

The present invention relates to a slot wedge assembly apparatus, and more particularly, to a slot wedge assembly apparatus for fixing a wedge (Wedge) or the like so as not to be separated from the coil (Slot) of the generator.

The stator of the generator serves to induce an electromotive force by assembling an armature winding and linking with a magnetic flux supplied from a rotor. A slot portion is provided as a means for assembling or fixing the stator winding, and the slot portion must function to withstand the forces (running force, thermal expansion force, and fault force) imposed on the winding. To this end, a slot is provided in the slot so that a winding is inserted, and a slot wedge is fitted to prevent separation and insulation damage of the winding in the slot.

In other words, the slot wedge is a member for preventing the coils from being released in the slot formed in the rotor or the stator body, and also preventing the coil from being wound in the slot of the rotor or the stator. It is composed of a wedge (Wedge) and a slide (Slide), the shape and size of these vary depending on the type and size of the rotor or stator.

In addition, slot wedge assembly work includes a process of fixing a winding in a slot of a stator or a rotor in a generator production process, and narrowly inserting a winding into a slot, and then fixing and inserting a wedge and a slide into the slot. Means fair.

Conventionally, the slot wedge assembly work for fixing the wedge and the slide so that the coil wound in the slot is not separated, at least two or more workers are a pair to assist the first worker to adhere to the slot, etc. 2 The worker performed a blow operation using a hammer or the like.

As such, as the wedge assembly work is performed by hand, the fatigue of the worker is rapidly increased, causing the musculoskeletal disease of the worker due to the continuous hitting operation, and there is a problem of damaging the body of the worker in the long term. In addition, as the slot wedge assembly work is performed by hand, there is a problem that the difference in assembly quality according to the skill of the operator occurs, the productivity is lowered.

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Korean Patent Registration No. 10-1145195 (registered May 04, 2012)

The present invention is to solve the above problems, by implementing a semi-automatic slot wedge assembly apparatus dedicated to slot wedge assembly work for inserting and fixing the wedge and slide in the slot so that the coil wound on the stator or rotor is fixed and By automating, the object of the present invention is to provide a semi-automatic slot wedge assembling apparatus which reduces the fatigue of the worker, protects the worker from the disease related to the hitting operation, and makes the slot wedge assembly quality uniform.

The present invention is a semi-automatic slot wedge assembling apparatus, comprising: a slot wedge assembling apparatus for inserting and fixing a wedge and a slide in the slot to fix a coil wound in a slot of a generator, the body portion; An air supply part connected to the body part and supplying compressed air to the body part; A slot support provided on one side of the body part to adhere to the slot and protruding toward the slot; A head portion connected to the body portion and striking the slide at regular intervals using compressed air supplied from the air supply portion; And the body portion includes an elastic spring connected to the head portion to return to the original state after hitting the head portion toward the slide.

In addition, the width of the slot support is characterized in that it is formed to correspond to the width of the slot.

In addition, the body portion is provided with a main handle so that the operator can grip with one hand, the main handle is characterized in that the trigger is provided for applying the compressed air supplied from the air supply so that the head portion is operated. .

In addition, the other side of the body portion is characterized in that the auxiliary handle is further provided so that the worker can grip with the other hand.

In addition, the body portion is characterized in that the U-shaped protection piece is provided to surround the elastic spring.

The head unit may include a striking body directly hitting one side edge of the slide while directly hitting the slide; And a connection piece connected to the body part and formed to bend such that the striking body is positioned inside the slot when the body part is attached to the slot.

자 형상으로 형성되는 것을 것을 특징으로 한다.In addition, the connecting piece is such that the striking body is located inside the slot

Characterized in that it is formed in the shape of a child.

In addition, the head portion, characterized in that it further comprises a detachable means at the edge of the connecting piece connected to the body portion, if necessary, the head portion is replaceable.

In addition, the striking body is characterized in that consisting of a reinforced plastic material.

In addition, the striking body is characterized in that composed of MC nylon material.

By the semi-automatic slot wedge assembly of the present invention, the musculoskeletal system due to the continuous hitting operation of the wedge and the slide is inserted and fixed in the slot so that the coil wound on the stator or rotor is fixed and automated, the continuous striking operation of the operator There is an advantage in preventing the disease and equalizing the quality of the slot wedge assembly.

In addition, by automating the slot wedge assembly operation, the slot wedge can be fixed by only one worker, thereby increasing the utilization rate of the stator or rotor winding manufacturing personnel. There is an advantage to realize the quality improvement.

However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a perspective view showing the overall appearance according to an embodiment of the present invention semi-automatic slot wedge assembly located in the slot of the stator core.
2 is a view for explaining a longitudinal section of the slot.
3 is a view for schematically explaining the operating principle according to an embodiment of the present invention semi-automatic slot wedge assembly.
Figure 4 is a perspective view for explaining the operation principle according to an embodiment of the present invention semi-automatic slot wedge assembly.
Figure 5 is a perspective view showing a state according to an embodiment of the inventors semi-automatic slot wedge assembly.
6 (a) and 6 (b) is a view for explaining the striking operation of the semi-automatic slot wedge assembly apparatus according to the embodiment of FIG.
FIG. 7 is a perspective view of the embodiment of FIG. 5 at another point in time. FIG.
8 is a state diagram showing a state in which the operator directly gripping the semi-automatic slot wedge assembly according to the embodiment of FIG.

Hereinafter, the present invention will be described in detail with reference to embodiments and drawings of the present invention. These examples are only presented by way of example only to more specifically describe the present invention, it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples. .

Also, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and in the case of conflict, the specification including definitions The description of will prevail.

In the drawings, parts irrelevant to the description are omitted to clearly describe the proposed invention, and like reference numerals designate like parts throughout the specification. In addition, when a part "contains" a certain component, this means that the component may further include other components, without excluding other components, unless specifically stated otherwise. In addition, the "unit" described in the specification means one unit or block that performs a specific function.

In each step, an identification code (first, second, etc.) is used for convenience of description, and the identification code does not describe the order of each step, and each step does not explicitly describe a specific order in context. It may be carried out in a different order than described above. That is, each step may be performed in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

1 is a perspective view showing the overall appearance according to an embodiment of the present invention semi-automatic slot wedge assembly 100 located in the slot 20 of the stator core 10.

Referring to this, the slot wedge assembly apparatus 100 of the present invention, the wedge (wedge) in the slot 20 so that the coil 40 wound on the slot 20 of the stator or the rotor core 10 of the generator is fixed ( Slot wedge assembly device for inserting and fixing the slot wedge 30 consisting of a 31, Wedge) and a slide (32, Slide).

The slot 20 is a void provided in the core 10 and is continuous in the longitudinal direction from the TE (Turbine End), which is both ends of the generator, to the CE (Collector End), and the circumferential direction of the outer peripheral surface of the core 10. It is provided so that a plurality at regular intervals along the. The slot 20 may be provided in a stator or a rotor. Hereinafter, the slot 20 will be described with reference to the stator slot.

FIG. 2 is a view for explaining a longitudinal section of the slot 20. When referring to any one slot 20 with reference to this, a coil 40 forming a winding is stacked in two layers in the slot 20. The coils 40 forming the windings are coated with insulation so as to be insulated from each other, and the filter 41 is provided above and below before contacting the outer surface of the slot. In addition, the left side or post of the coil 40 is provided with a ripple spring 42 to ensure insulation and flexibility, this ripple spring 42 is also provided on the upper surface after the two coil layers are inserted. Then, the slot wedge 30 is fitted on the upper portion of the ripple spring 42 so that the coil 40 which is insulated and inserted is not radially separated by a bar force acting on the stator coil. Specifically, the slot wedge 30 is preferably a wedge 31, in which the fitting pieces 31a are formed at both sides, is first manually inserted and disposed from TE or CE, and the wedge 31 is completely in a predetermined position. The wedge-shaped slide 32 having an inclined upper surface is completely inserted between the wedge 31 and the ripple spring 42 so as to be fixed.

The hitting operation of the slide 32 is conventionally at least two or more workers in a pair to assist the first worker to adhere to the wedge and the like, the second worker was performed manually using a hammer, thereby It was necessary to improve the inefficiency and the non-uniformity of assembly quality due to causing physical diseases, over-injection of working manpower.

Semi-automatic slot wedge assembly of the present invention is a solution thereof, the present invention is composed of a body portion 110, air supply unit 120, slot support 130, the head portion 140 and the elastic spring 150.

3 and 4 are views for explaining the operation principle according to an embodiment of the present invention semi-automatic slot wedge assembly, Figure 5 is a perspective view showing a state according to an embodiment of the present invention semi-automatic slot wedge assembly.

Referring to this, the body portion 110 is provided with a slot support 130, a main handle 112, and the like to be described later, receives the compressed air from the air supply unit 120 to be described later the head portion 140 to be described later It is provided to be movable. In addition, the body 110 is preferably formed in a cylindrical body to enable the rotation based on the longitudinal direction of the slot 20. Accordingly, the operator can perform the slot wedge assembly by rotating the main handle 112 based on the longitudinal direction of the slot in accordance with the convenience while holding the auxiliary handle 116 to be described later with one hand.

The air supply unit 120 is connected to the body portion 110, and supplies compressed air to the body portion 110. The air supply unit 120 may be connected to the body 110 through a supply line 121, the length of the supply line 121 is preferably determined according to the working radius, the air supply unit 120 is an operator For convenience and safety of the generator (or stator) is preferably provided outside. The air supply unit 120 is enough to provide a predetermined blow force when the head unit 140 is operated by supplying compressed air to the body unit 110, the air supply unit 120 in this embodiment It is not limited, but may be provided on one side of the body portion 110 to increase portability.

The slot support 130 is provided on one side of the body portion 110 so that the body portion 110 adheres to the slot 20, and is formed to protrude toward the slot 20. Specifically, the first reinforcing piece 113 surrounding the inner body of the body portion 110 is provided, one side of the first reinforcing piece 113 is provided with the slot support 130, the slot support The width of the 130 is formed to correspond to the width of the slot 20, the body 110 is supported by the slot 20 to guide and secure the stable and accurate hitting operation of the head 140 to be described later You can do it.

The head part 140 is connected to the body part 110 and is provided to strike the slide at regular intervals using the compressed air supplied from the air supply part 120. Such a head portion 140 may be specifically composed of the striking body 141, the connecting piece 142 and the detachable means 143.

The striking body 141 may be provided to directly strike the one edge of the head portion 140 while contacting the slide. Such a striking body 141 is preferably formed in a hexahedral shape so as to be directly inserted into the slot 20 to apply a direct strike while contacting one end of the slide (32).

In addition, the striking member 141 is made of a reinforced plastic material, in order to hit the slide 32 made of a non-ferrous material such as bakelite in one embodiment to minimize the damage and furthermore the stator of the outer peripheral surface of the slot 20 It is possible to prevent the core 10 from being broken. Preferably, the striking body 141 may be made of MC nylon material, MC nylon refers to a monomer cast nylon (Mono Cast Nylon) means that the raw material of the nylon monomer polymerized and molded under atmospheric pressure. Of course, the hitting body 141 is sufficient to minimize the damage and damage of the slide 32 and the core 10 in hitting the slide 32 made of a non-ferrous material, MC nylon material of the present embodiment It is not limited.

The connection piece 142 may be connected to the body part 110, and may be formed to be bent such that the striking body 141 is positioned inside the slot when the body part 110 adheres to the slot 20. As a result, in the state where the body part 110 is stably attached to the slot 20 by the slot support 130, the striking body 141 of the head part 140 directly contacts the slide 32. It is possible to implement an accurate hit on one side of the).

자 형상으로 형성될 수 있다. 물론 상기 연결편(142)은 상기 슬롯지지대(130)에 의해 상기 바디부(110)가 슬롯(20)에 안정적으로 견착된 상태에서, 상기 타격체(141)가 슬라이드(32)의 일면에 대하여 정확한 타격을 구현할 수 있는 형상이면 족하고, 본 실시예의 형상으로 한정되는 것은 아니다.In one embodiment, the connecting piece 142 is such that the striking body 141 is located inside the slot

It may be formed in the shape of a child. Of course, the connecting piece 142 in the state in which the body portion 110 is stably attached to the slot 20 by the slot support 130, the striking body 141 with respect to one surface of the slide 32 If it is a shape which can implement a hit | damage, it is sufficient, It is not limited to the shape of this embodiment.

The head portion 140 may further include a detachment means 143, wherein the detachment means 143 of the connecting piece 142 connected to the body portion 110 so that the head portion is replaceable if necessary. It may be provided at the edge. Accordingly, it is possible to perform the blow operation by replacing the head portion 140 according to the type and size of the various stator slots for each model, the worker, such as when the hitting body 141 is worn or inevitably damaged by long-term use The head portion 140 can be easily replaced from the body portion 110 as needed.

6 (a) and 6 (b) is a view for explaining the striking operation of the semi-automatic slot wedge assembly apparatus according to the embodiment of FIG.

The elastic spring 150 is provided in the body 110 so that the head 140 returns to its original state after hitting the slide toward the slide, and is connected to the head 140. Specifically, when the compressed air supplied to the body portion 110 is applied by the trigger 114, the head portion 140 is advanced in the longitudinal direction of the slot 20 to hit the slide 32 which is the object to be hit. (A) of FIG. 6. In this case, the elastic spring 150 connected to the head part 140 exerts a tensile force in a direction opposite to the hitting direction, and the head part (from the time when it is canceled with the moving force of the head part 140 by compressed air). 140) (FIG. 6B). As a result, while the head unit 140 is operated by the trigger 114, the head unit 140 may move forward and backward.

Of course, when the head portion 140 is displaced in the striking direction by the compressed air, the elastic spring 150 exerts a tensile force in the opposite direction to cancel the head portion 140 from the moving force caused by the compressed air. If the elastic means is connected to the head portion 140 so as to retreat, it is not limited to the elastic spring as in the present embodiment.

In addition, the body portion 110 may be provided with a c-shaped protection piece 152 to surround the elastic spring 150. Accordingly, when the head part 140 performs the striking operation, the elastic spring 150 may be prevented from falling off or breaking from the body part 110 or the head part 140 due to vibration and friction. .

Figure 7 is a perspective view showing an embodiment of the present invention semi-automatic slot wedge assembly at another point, Figure 8 is a state diagram showing a state in which the operator directly grips the semi-automatic slot wedge assembly apparatus according to the present embodiment.

Referring to this, the body portion 110 is provided with a main handle 112 so that an operator can grip with one hand (H1), the main handle 112 is the air to move the head portion 140 Trigger 114 for applying the compressed air supplied from the supply unit 120 may be provided. In addition, the other side of the body portion 110 may be further provided with an auxiliary handle 116 so that the worker can grip with the other hand (H2) (see Fig. 8). Accordingly, according to this, the operator properly rotates the main handle 112 based on the longitudinal direction of the slot in a state in which the auxiliary handle 116 is gripped with one hand according to the slot position of the stator that requires the striking operation ( Referring to the direction of the arrow in Figure 7) slot wedge assembly can be performed to facilitate work convenience.

As such, the operator can perform the slot wedge hitting operation independently on the stator core where the operator is located, thereby increasing the work efficiency. For example, four workers in the slot wedge hitting operation of any one of the generator stators are provided. Each has a semi-automatic slot wedge assembly device, and can perform the batting work by taking the outer circumference of the semicircle from the center toward the TE and the CE.

As such, by providing an automated device dedicated to the slot wedge assembly work, it prevents musculoskeletal disorders caused by the manual continuous hitting operation when the conventional worker performs the slot wedge assembly work in a pair of two people, and uniform hitting Maintaining strength and hitting frequency can result in improved slot wedge assembly quality and uniformity.

In addition, by automating the slot wedge assembly operation, the slot wedge can be fixed and hit by only one worker, thereby increasing the utilization rate of the stator winding manpower. Also, the overall quality of the slot wedge assembly process is linked to the automation of the cutting and bending of the winding. The improvement can be implemented.

The semi-automatic slot wedge assembly apparatus according to the present invention has been described above. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive.

10: core 20: slot
30: slot wedge 40: coil
110: body portion 112: the main handle
114: trigger 116: auxiliary handle
120: air supply unit 130: slot support
140: head portion 141: hitting body
142: connecting piece 143: removable means
150: elastic spring 152: protective piece

Claims (10)

A slot wedge assembly device for inserting and fixing a wedge and a slide in a slot to fix a coil wound in a slot of a generator:
A main handle is provided so that an operator can hold it with one hand, and the main handle is provided with a trigger for applying compressed air supplied from an air supply unit so that the head is operated, and one side is assisted to hold the worker with the other hand. A handle is provided, the body portion provided with a U-shaped protection piece to surround the elastic spring;
An air supply part connected to the body part and supplying compressed air to the body part;
A slot support provided on one side of the body part so as to adhere to the slot, and formed to protrude toward the slot, the slot support having a width corresponding to the width of the slot;
A head portion connected to the body portion and striking the slide at regular intervals using compressed air supplied from the air supply portion; And
An elastic spring connected to the head portion so that the head portion returns to its original state after hitting the head portion toward the slide;
Including,
The head portion:
Planes corresponding to both side surfaces of one end of the slot extend on both sides by a predetermined length, and a structure corresponding to one side of the wedge or slide is formed at one end and directly strikes one side of the wedge or slide. A striking body mounted on one end of the connecting piece and made of reinforced plastic MC nylon material;
A connection piece connected to the body part and having a bending structure formed such that the striking body is positioned inside the slot when the body part is attached to the slot; And
Detachable means for allowing the head portion to be replaced at an edge of the connecting piece connected to the body portion;
Semi-automatic slot wedge assembly apparatus comprising a.
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