CN212695859U

CN212695859U - Synchronous machine rotor coil fixing device

Info

Publication number: CN212695859U
Application number: CN202021855892.0U
Authority: CN
Inventors: 凤发; 翁可强; 罗世对; 易茂芳; 王涛; 牟茜娜; 罗英华
Original assignee: Guangxi Hengda Machine Technology Co ltd
Current assignee: Guangxi Hengda Machine Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-03-12
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a fixing device for a rotor coil of a synchronous motor, which comprises a ring body and screw holes, wherein the screw holes are provided with a plurality of groups, and the screw holes of the plurality of groups are uniformly distributed in the radial direction of the ring body in a surrounding manner; first bolts are assembled in the screw holes and correspond to coils in the wire grooves of the motor rotor. The utility model discloses a ring structure, the radial even distribution in the tourus is provided with a plurality of screws, and the screw is relative with the coil in the last wire casing of electric motor rotor, and the bolt-up on the accessible screw during use makes the coil compaction and reaches level and smooth with pressing the coil in the rotor wire casing. In addition, still set up a plurality of sliding part that have the bolt to can remove the sliding block according to actual need and refer to the position that scale accurately adjusted and assign in bolt on the sliding block, make the more accurate coil of aiming at rotor wire casing mouth of bolt, play the fastening and press the effect, the later stage coil of being convenient for welds after the shaping of rotor tip.

Description

Synchronous machine rotor coil fixing device

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to a synchronous machine rotor coil fixing device.

Background

Along with the rapid development of economic construction in China, a large-scale motor is used more and more widely as an important power source in industrial production, the assembly quality of the motor is very important to the working stability and reliability of the motor, the process of a wire embedding process is a key influencing the quality of the motor, when a rotor is subjected to wire embedding operation, a coil needs to be ensured to completely fall into a wire slot of a rotor core, the coil embedded into the wire slot of the rotor core is shaped, the coil is reliably pressed on the bottom of the wire slot, and the coil is prevented from deforming in the later use process of the motor.

In the prior art, the shaping and pressing work of the coils in the coil inserting process is generally finished manually, and the coils in each wire slot need to be compacted one by one manually, so that the operation process is time-consuming, and the labor intensity of workers is also enhanced; in addition, because the large-scale motor is large in size and large in power, the coil in the large-scale motor is not formed by copper wire windings adopted by a conventional motor, the coil in the large-scale motor generally adopts copper bars as the coil windings, the requirement of the large current required by the large-scale motor in daily work can be met by the size specification, but the copper bars are adopted as the coil, the size specification is large and has high flexibility, the compactness and the flatness of the coil are still difficult to ensure by manpower, and the shaping and the pressing work of the coil have certain difficulty.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide a synchronous machine rotor coil fixing device, can fasten effectively and press the coil of motor rotor inslot to make the coil reach and level.

In order to realize the purpose, the utility model discloses a technical scheme be:

a fixing device for a rotor coil of a synchronous motor comprises a ring body and screw holes, wherein the screw holes are provided with a plurality of groups, and the screw holes of the plurality of groups are uniformly distributed in the radial direction of the ring body in a surrounding manner; first bolts are assembled in the screw holes and correspond to coils in the wire grooves of the motor rotor.

As an improvement of the technical scheme, the improved annular body further comprises a sliding part, a plurality of first waist-shaped holes which are uniformly distributed in a surrounding mode along the radial direction are formed in the annular body, the sliding part is provided with a plurality of groups, and the sliding part is slidably mounted on a corresponding area, located in the first waist-shaped holes, of the annular body.

As the improvement of the technical scheme, the outer wall of the annular body, which is located in the corresponding area of the first waist-shaped hole, is provided with the limiting structure, the sliding part is slidably mounted in the limiting structure, and one end of the sliding part movably penetrates through the first waist-shaped hole.

As an improvement of the above technical scheme, the limiting structure comprises a fixed block, and the fixed block is arranged on the outer wall of the annular body in the area corresponding to the first waist-shaped hole; the fixing block is internally provided with an open slot which is communicated with two ends of the fixing block, and the opening of the open slot is positioned at the top of the fixing block; the sliding part is arranged in the opening groove in a sliding mode, and one end of the sliding part movably penetrates through the first waist-shaped hole.

As an improvement of the above technical solution, the sliding part includes a second bolt and a sliding block, the sliding block is slidably mounted in the open slot, the sliding block is provided with a threaded hole matching the first waist-shaped hole, the second bolt is rotatably mounted in the threaded hole, and one end of the second bolt movably passes through the first waist-shaped hole; the second bolts can also correspond to the coils in the wire slots of the motor rotor.

As an improvement of the above technical scheme, a second waist-shaped hole is formed in the bottom of the fixing block, and the second waist-shaped hole is arranged corresponding to the first waist-shaped hole; one end of the second bolt sequentially passes through the second waist-shaped hole and the first waist-shaped hole in a movable mode.

As an improvement of the technical scheme, the sliding block can drive the second bolt to slide along the first waist-shaped hole.

As the improvement of the technical scheme, the outer side of the upper end of the fixed block is provided with the graduated scale, and the sliding block can drive the second bolt to be accurately positioned according to the graduated scale and align to the line notch on the motor rotor.

As an improvement of the technical scheme, the number of the screw holes is equal to the number of the wire slots of the motor rotor.

Compared with the prior art, the beneficial effects of this application are:

the utility model discloses a synchronous machine rotor coil fixing device adopts the ring structure, is provided with a plurality of screws along radial even distribution on the tourus, and the coil in the wire casing on screw and the electric motor rotor of establishing is corresponding, and the bolt-up on the accessible screw during use makes the coil compaction and reaches level and smooth with pressing the coil in the rotor wire casing. In addition, still radially distributed on the ring has set up a plurality of sliding part and the scale that have the bolt, and the staff can move the sliding block according to actual need with this position of accurately adjusting bolt on it, make the more accurate coil of aiming at rotor wire casing mouth of bolt, play fastening and press the effect, the later stage coil of being convenient for welds after the shaping of rotor tip.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a matching structure diagram of the limiting structure and the sliding component according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and fig. 2, the utility model provides a fixing device for a rotor coil of a synchronous motor, which comprises a ring body 1 and screw holes 2, wherein the screw holes 2 are provided with a plurality of groups, and the screw holes 2 of the plurality of groups are uniformly distributed in the radial direction of the ring body 1 in a surrounding manner; and first bolts 21 are assembled in the screw holes 2, and the first bolts 21 can correspond to coils in a motor rotor wire slot. Wherein, the setting of screw 2 is convenient for the location of first bolt 21, the group number of screw 2 equals electric motor rotor's wire casing mouth number, makes first bolt 21 can press the intraoral coil of each wire casing of electric motor rotor effectively.

The utility model discloses a synchronous machine rotor coil fixing device adopts ring shape structure, is provided with a plurality of screws 2 along radial even distribution on the tourus 1, and the first bolt 11 of assembly is facing the coil in the last wire casing of electric motor rotor in the screw 2, and the accessible is screwed first bolt 11 and is reached the fastening and press the effect of the coil in the rotor wire casing that it corresponds during the use, makes the coil compaction and just level.

Further, in order to ensure that the bolt can more accurately aim at the line notch on the motor rotor, still include sliding part 3, be provided with a plurality of first waist shape hole 11 along radial evenly around the distribution on the tourus 1, sliding part 3 is provided with a plurality of groups, a plurality of groups sliding part 3 slidable mounting is on tourus 1 is located the corresponding region in first waist shape hole 11. The first waist-shaped holes 11 are located between the two groups of screw holes 2, the sliding of the sliding component 3 is facilitated due to the arrangement of the first waist-shaped holes 11, and one end of each first waist-shaped hole can penetrate through the annular body 1 to correspond to a coil in a wire slot on the motor rotor.

For the slip of spacing sliding part 3, tourus 1 is provided with limit structure 4 on being located the outer wall of first waist shape hole 11 corresponding region, sliding part 3 slidable mounting is in limit structure 4, and the activity of one end passes first waist shape hole 11. The limiting structure 4 can also be arranged on the inner wall of the ring body 1 in the area corresponding to the first kidney-shaped hole 11, as long as it can limit the sliding module 3 and provide a reverse acting force for the sliding module 3 when one end of the sliding module presses the coil, so as to press the coil better.

Referring to fig. 2, the limiting structure 4 in the present application may be various structures, and in an embodiment of the present application, the limiting structure 4 includes a fixing block 41, the fixing block 41 is disposed on an outer wall of the circular ring body 1 located in a corresponding region of the first kidney-shaped hole 11, of course, the fixing block 41 may also be disposed on an inner wall of the circular ring body 1 located in a corresponding region of the first kidney-shaped hole 11, and the fixing block 3 can limit two ends of the sliding component 3 and provide a reverse acting force for the sliding component 3 when pressing the coil, thereby better fastening the coil. An open slot 42 is formed in the fixed block 41, the open slot 42 penetrates through two ends of the fixed block 41, and an opening of the open slot is located at the top of the fixed block 41; the sliding component 3 is slidably mounted in the opening groove 42, and one end of the sliding component movably passes through the first kidney-shaped hole 11, and meanwhile, the other end of the sliding component 3 passes through the opening of the opening groove 42. The provision of the open slot 42 facilitates the sliding of the sliding member 3 in the fixed block 41, thereby aligning one end of the sliding member 3 with the wire slot of the motor rotor.

Further, in an embodiment of the present application, the sliding component 3 includes a second bolt 31 and a sliding block 32, the sliding block 32 is slidably installed in the opening groove 42, a threaded hole matching with the first kidney-shaped hole 11 is provided on the sliding block 32, the second bolt 31 is screwed into the threaded hole, and one end of the second bolt movably passes through the first kidney-shaped hole 11; the second bolts 31 can also correspond to the coils in the slots of the motor rotor. The sliding block 32 can drive the second bolt 31 to slide along the first kidney-shaped hole 11. The second bolt 31 passes through the first kidney-shaped hole 11, and the coil in the motor rotor wire slot can be fastened by screwing the second bolt 31; and meanwhile, the fixed block 41 can provide acting force for the sliding block 32, so that the second bolt 31 assembled in the sliding block 32 can effectively press and fasten the coil. Further, the outer side of the upper end of the fixed block 41 is provided with a graduated scale 44, and the sliding block 32 can drive the second bolt 31 to be accurately positioned according to the graduated scale 44 and aligned with a line notch on the motor rotor. The graduated scale 44 may facilitate a more accurate positioning of the second bolt 31 to the wire notch on the rotor of the motor.

In another embodiment of the present application, a second waist-shaped hole 43 is disposed at the bottom of the fixing block 41, and the second waist-shaped hole 43 is disposed corresponding to the first waist-shaped hole 11; the second bolt 31 sequentially passes through the second kidney-shaped hole 43 and the first kidney-shaped hole 11. The second slotted hole 43 is provided to allow the second bolt 31 to movably pass through the fixing block 41.

The utility model discloses a synchronous machine rotor coil fixing device ring body 1 is gone up along radial distribution has set up a plurality of sliding part 3 that have second bolt 31, can remove sliding part 3 according to actual need during the use with this accurately adjust the position of second bolt 31 on it, makes second bolt 31 more accurately just to rotor wire casing intraoral coil, makes further fastening of coil and presses down, makes the coil level and smooth, and the later stage coil of being convenient for welds after the shaping of rotor tip.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. The fixing device for the rotor coil of the synchronous motor is characterized by comprising a ring body (1) and screw holes (2), wherein the screw holes (2) are provided with a plurality of groups, and the screw holes (2) of the groups are uniformly distributed in the radial direction of the ring body (1) in a surrounding manner; and a first bolt (21) is assembled in the screw hole (2), and the first bolt (21) can correspond to coils in a motor rotor wire slot.

2. The fixing device for the rotor coil of the synchronous motor is characterized by further comprising a sliding component (3), wherein a plurality of first kidney-shaped holes (11) which are uniformly distributed around the annular body (1) in the radial direction are formed in the annular body, a plurality of groups of the sliding components (3) are arranged, and a plurality of groups of the sliding components (3) are slidably installed on corresponding areas, located on the first kidney-shaped holes (11), of the annular body (1).

3. The fixing device for the rotor coil of the synchronous motor according to claim 2, wherein a limiting structure (4) is arranged on the outer wall of the circular ring body (1) in the area corresponding to the first kidney-shaped hole (11), the sliding part (3) is slidably mounted in the limiting structure (4), and one end of the sliding part movably penetrates through the first kidney-shaped hole (11).

4. A fixing device for a rotor coil of a synchronous motor according to claim 3, characterized in that the limiting structure (4) comprises a fixing block (41), the fixing block (41) is arranged on the outer wall of the circular ring body (1) in the corresponding area of the first kidney-shaped hole (11); an open slot (42) is formed in the fixed block (41), the open slot (42) penetrates through two ends of the fixed block (41), and the opening of the open slot is positioned at the top of the fixed block (41); the sliding component (3) is installed in the opening groove (42) in a sliding mode, and one end of the sliding component movably penetrates through the first waist-shaped hole (11).

5. A fixing device for rotor coils of synchronous motors according to claim 4, characterized in that the sliding component (3) comprises a second bolt (31) and a sliding block (32), the sliding block (32) is slidably installed in the opening slot (42), the sliding block (32) is provided with a threaded hole matching with the first kidney-shaped hole (11), the second bolt (31) is screwed in the threaded hole, and one end of the second bolt movably penetrates through the first kidney-shaped hole (11); the second bolts (31) can also correspond to coils in the motor rotor wire slots.

6. A fixing device for rotor coils of synchronous machines according to claim 5, characterized in that the bottom of the fixing block (41) is provided with a second kidney-shaped hole (43), the second kidney-shaped hole (43) is arranged corresponding to the first kidney-shaped hole (11); one end of the second bolt (31) sequentially and movably penetrates through the second waist-shaped hole (43) and the first waist-shaped hole (11).

7. A fixing device for rotor coils of synchronous machines according to claim 6, characterized in that the sliding block (32) can drive the second bolt (31) to slide along the first kidney-shaped hole (11).

8. A fixing device for rotor coils of synchronous motors according to claim 6, characterized in that the outer side of the upper end of the fixing block (41) is provided with a graduated scale (44), and the sliding block (32) can drive the second bolt (31) to be accurately positioned according to the graduated scale (44) and aligned with the linear notch on the motor rotor.

9. A stator winding fixing device for a synchronous machine according to claim 1, characterized in that the number of groups of screw holes (2) is equal to the number of slots of the machine rotor.