A fan-shaped silicon steel punching with ventilation slot holes

Abstract

The utility model relates to motor core technical field discloses a fan -shaped silicon steel punching with ventilation slot hole, including fixed ring, first half punching, second half punching, connecting mechanism and telescopic mechanism, second half punching rotates around fixed ring, connecting mechanism includes fixed block, moving plate, engages short column, limit rod, first spring and engaging groove, moving plate drives limit rod to remove, limit rod drives engaging short column to remove, engaging short column engages into engaging groove, telescopic mechanism includes folding board, removes arc plate, two -way threaded rod, connection elbow, connecting rod and carousel, carousel drives connecting rod to rotate, connecting rod drives two -way threaded rod to rotate. The utility model discloses through the setting connecting mechanism, has solved the problem of inconvenient dismounting, and through the setting telescopic mechanism, has solved the problem of ventilation slot hole size fixed, can change ventilation slot hole size flexibly.

Description

Technical Field

[0001] This utility model relates to the field of motor core technology, and in particular to a fan-shaped silicon steel lamination with ventilation slots. Background Technology

[0002] Sector-shaped silicon steel laminations are a key component of the stator or rotor core in large motors or generators. They typically require ventilation slots to facilitate heat dissipation and ensure stable motor operation.

[0003] In the existing technology, sector-shaped silicon steel laminations are usually stamped into a one-piece structure. Although this structure is stable, if it is necessary to replace individual laminations during the assembly or subsequent maintenance of large motors, this one-piece structure makes the installation and disassembly process cumbersome and inconvenient to operate, especially when maintenance is carried out in a narrow space.

[0004] Furthermore, the ventilation slots on existing silicon steel laminations are usually stamped in one go during the design and manufacturing process, and the hole size and ventilation area are fixed. However, in the actual operation of the motor, the demand for heat dissipation changes dynamically under different operating loads or different ambient temperatures. Such fixed ventilation slots cannot adjust the ventilation volume as needed, resulting in excessive heat dissipation at low loads and insufficient heat dissipation at high loads, lacking the flexibility for adjustment.

[0005] Therefore, this utility model proposes a fan-shaped silicon steel stamping with ventilation slots to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of fixed structure, inconvenient assembly, fixed ventilation slot size and single function of the existing fan-shaped silicon steel stamping with ventilation slots, the present invention aims to provide a fan-shaped silicon steel stamping with ventilation slots with improved structure that can effectively solve the above problems.

[0007] This utility model provides a fan-shaped silicon steel sheet with ventilation slots, comprising: a fixing ring, a first half-sheet, a second half-sheet, a connecting mechanism, and a telescopic mechanism. The second half-sheet rotates around the fixing ring. The connecting mechanism includes a fixing block, a moving plate, a locking post, a limiting rod, a first spring, and a locking groove. The moving plate is pressed by the second half-sheet. The fixing block is disposed in a groove at the junction of the first and second half-sheets. The locking groove is formed on the first half-sheet. The moving plate drives the limiting rod to move, and the limiting rod drives the locking post to move. The locking post engages into the locking groove. The first spring rebounds to prevent the locking post from moving. The telescopic mechanism includes a folding plate, a moving arc plate, a bidirectional threaded rod, a connecting bent rod, a connecting rod, and a turntable. The turntable drives the connecting rod to rotate, and the connecting rod drives the bidirectional threaded rod to rotate. The bidirectional threaded rod drives the moving arc plate to move towards each other. The moving arc plate, via the connecting bent rod, causes the folding plate to deform to change the size of the ventilation slots.

[0008] Preferably, the connecting mechanism further includes an auxiliary component, which includes a first engaging block, a second engaging block, and a second spring.

[0009] Preferably, the first engaging block slides during the movement of the second half-punch until it engages with the second engaging block, and the installation of the second spring enables the first engaging block and the second engaging block to engage.

[0010] Preferably, the connecting mechanism further includes a detachable pressing rod, which is mounted on and presses the limiting rod.

[0011] Preferably, the pressing rod presses the limiting rod, causing the limiting rod to press the second engaging block downwards, thereby releasing the engagement between the second engaging block and the first engaging block.

[0012] Preferably, the pressing rod presses the limiting rod to move, thereby releasing the engagement between the engaging short post and the engaging groove.

[0013] Preferably, the limiting rod drives the engaging short post to move downward and makes the engaging short post contact the inner top wall of the first half-punch piece.

[0014] Preferably, the telescopic mechanism further includes a rotating groove, and the turntable is installed in the rotating groove.

[0015] Preferably, both the folding plate and the connecting rod are made of flexible material.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting a connecting mechanism, includes a fixed block, a movable plate, a locking short column, a limiting rod, a first spring, a locking groove, and auxiliary components. Unlocking is achieved by pressing the limiting rod with a pressing rod. This solves the problem that existing fan-shaped silicon steel stampings are mostly one-piece structures, which are inconvenient to install and disassemble. It enables fan-shaped silicon steel stampings to be quickly assembled and disassembled, and is convenient for maintenance and replacement.

[0018] 2. This utility model, by setting up a telescopic mechanism, uses a turntable to drive the connecting rod and the bidirectional threaded rod to rotate, driving the moving arc plate to move towards each other, and through the connecting bent rod to drive the folding plate made of flexible material to deform, solves the problem of the fixed size of the ventilation slot hole of the existing silicon steel stamping and cannot be adjusted, and can flexibly change the size of the ventilation slot hole according to actual needs, thus improving applicability. Attached Figure Description

[0019] Figure 1 This is a perspective view of a fan-shaped silicon steel sheet with ventilation slots proposed in this utility model.

[0020] Figure 2 This is a top view of a fan-shaped silicon steel lamination with ventilation slots proposed in this utility model.

[0021] Figure 3 This is a partial structural exploded view of a fan-shaped silicon steel lamination with ventilation slots proposed in this utility model.

[0022] Figure 4 This is a partial structural diagram of a fan-shaped silicon steel stamping with ventilation slots proposed in this utility model.

[0023] Legend:

[0024] 1. Fixing ring; 2. Connecting mechanism; 201. Fixing block; 202. Moving plate; 203. Engaging short column; 204. Limiting rod; 205. First spring; 206. Engaging groove; 207. Pressing rod; 208. Auxiliary component; 2081. First engaging block; 2082. Second engaging block; 2083. Second spring; 3. Telescopic mechanism; 301. Folding plate; 302. Moving arc plate; 303. Bidirectional threaded rod; 304. Connecting bent rod; 305. Connecting rod; 306. Turntable; 307. Rotating groove; 4. First half-punch piece; 5. Second half-punch piece. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0026] Example:

[0027] Please refer to Figures 1 to 4 This utility model provides a fan-shaped silicon steel lamination with ventilation slots, including a fixing ring 1, a first half lamination 4, a second half lamination 5, a connecting mechanism 2, and a telescopic mechanism 3. The second half lamination 5 can rotate around the fixing ring 1 to achieve splicing or separation with the first half lamination 4. The connecting mechanism 2 is used to lock and unlock the first half lamination 4 and the second half lamination 5. The telescopic mechanism 3 is used to change the size of the ventilation slots provided on the lamination. (Refer to...) Figure 3 The connecting mechanism 2 includes a fixed block 201, a movable plate 202, a locking short post 203, a limiting rod 204, a first spring 205, a locking groove 206, a pressing rod 207, and an auxiliary component 208. The fixed block 201 is disposed in the groove at the junction of the first half-punch piece 4 and the second half-punch piece 5. The movable plate 202 is slidably disposed near the fixed block 201 and moves when the second half-punch piece 5 is pressed. The movable plate 202 is fixedly connected to the limiting rod 204, and the limiting rod 204 is fixedly connected to the locking short post 203. The locking groove 206 is opened on the inner top wall of the first half-punch piece 4. The first spring 205... The sleeve is fitted on the outside of the engaging short post 203 to provide a rebound force after the engaging short post 203 is engaged into the engaging groove 206, preventing the engaging short post 203 from moving. The pressing rod 207 is detachable. After installation, the pressing rod 207 is used to press the limiting rod 204. The auxiliary component 208 includes a first engaging block 2081, a second engaging block 2082, and a second spring 2083. The first engaging block 2081 is disposed on the second half-punch 5, and the second engaging block 2082 is disposed on the first half-punch 4. The installation of the second spring 2083 enables the first engaging block 2081 and the second engaging block 2082 to engage.

[0028] Please refer to Figure 4The telescopic mechanism 3 includes a folding plate 301, a movable arc-shaped plate 302, a bidirectional threaded rod 303, a connecting bent rod 304, a connecting rod 305, a turntable 306, and a rotating groove 307. The rotating groove 307 is formed on the lamination body to accommodate the turntable 306, making the surface of the turntable 306 flush with the lamination. The turntable 306 is rotatably mounted in the rotating groove 307. The center of the turntable 306 is fixedly connected to the connecting rod 305. The other end of the connecting rod 305 is fixedly connected to the bidirectional threaded rod 303 to transmit torque. The two ends of the bidirectional threaded rod 303 have threads with opposite directions of rotation. The threads of the bidirectional threaded rod 303 are threaded into corresponding threaded holes formed on the two movable arc-shaped plates 302. A helical transmission pair is formed, with the sides of the two movable arc plates 302 respectively hinged to the folding plate 301 via connecting bent rods 304. The edges of the folding plate 301 are fixed to both sides of the ventilation slot. Both the folding plate 301 and the connecting bent rods 304 are made of flexible material, ensuring that when the turntable 306 is rotated, the connecting rod 305 drives the bidirectional threaded rod 303 to rotate synchronously. The threads on the bidirectional threaded rod 303 simultaneously drive the two movable arc plates 302 to move towards or away from each other along the axis of the bidirectional threaded rod 303. The movable arc plates 302 stretch or compress the folding plate 301 through the connecting bent rods 304, causing the folding plate 301 to undergo flexible deformation, thereby realizing the continuous adjustment of the ventilation slot size.

[0029] As a preferred embodiment, please refer to Figure 3 The connecting mechanism 2 also includes an auxiliary component 208. To provide auxiliary locking, the auxiliary component 208 includes a first locking block 2081, a second locking block 2082, and a second spring 2083. The first locking block 2081 is disposed on the inner side of the second half-punch 5, and the second locking block 2082 is disposed on the inner side of the first half-punch 4. The second spring 2083 is installed between the first locking block 2081 and the second locking block 2082 to provide locking force so that the first locking block 2081 and the second locking block 2082 can be locked together.

[0030] As a preferred embodiment, please refer to Figure 3 In order to enable the unlocking operation, the connecting mechanism 2 also includes a detachable pressing rod 207, which can be inserted into the top of the limiting rod 204 to apply downward pressure to the limiting rod 204.

[0031] As a preferred embodiment, please refer to Figure 4 In order to make the surface of the stamping flat, the telescopic mechanism 3 also includes a rotating groove 307, which is recessed on the stamping body, and the turntable 306 is installed in the rotating groove 307.

[0032] In a preferred embodiment, in order to achieve deformation adjustment of the ventilation slot, both the folding plate 301 and the connecting rod 304 are made of flexible materials, such as rubber or flexible polymer, to ensure that the folding plate 301 and the connecting rod 304 can reliably deform.

[0033] Working principle: When splicing the sector-shaped silicon steel sheets, the second half sheet 5 is first rotated to the right around the fixing ring 1. During the movement of the second half sheet 5, it is fixed by two fixing blocks 201, which are fixed in the groove at the junction of the first half sheet 4 and the second half sheet 5. At this time, the moving plate 202 is compressed and moves downward through the limiting rod 204, thereby driving multiple engaging short posts 203 to move downward and contact the inner top wall of the first half sheet 4. With the continuous movement of the second half sheet 5, the multiple engaging short posts 203 are engaged into the corresponding engaging grooves 206. The rebound of the first spring 205 prevents the engaging short posts 203 from moving. At this time, through the installation of the auxiliary component 208, during the movement of the second half sheet 5, The first locking block 2081 slides in front of the second locking block 2082 until it engages with the second locking block 2082. The installation of the second spring 2083 enables the first locking block 2081 and the second locking block 2082 to engage. When disassembly is required, since the pressing rod 207 is detachable, the pressing rod 207 is installed and the limiting rod 204 is pressed. At this time, the limiting rod 204 will press the second locking block 2082 downward, thereby releasing the engagement between the locking short column 203 and the locking groove 206, and simultaneously releasing the engagement between the second locking block 2082 and the first locking block 2081. The second half-punch 5 can be rotated in the opposite direction to achieve the disassembly of the fan-shaped silicon steel punch. Through the above process, the connecting mechanism 2 can achieve the effect of splicing and disassembling the fan-shaped silicon steel punch.

[0034] By opening the rotating slot 307, the installation of the turntable 306 can be avoided from affecting the overall shape of the fan-shaped silicon steel stamping. Rotating the turntable 306 causes the connecting rod 305 to rotate, which in turn drives the bidirectional threaded rod 303 to rotate. The moving arc plates 302 on the front and rear sides will move towards each other, thereby causing the folding plates 301 on both sides to change the size of the ventilation slot through the connecting bent rod 304. Since both the folding plate 301 and the connecting bent rod 304 are made of flexible material, they can withstand a certain degree of deformation, thereby enabling the telescopic mechanism 3 to achieve the effect of changing the size of the ventilation slot.

Claims

1. A fan-shaped silicon steel lamination with ventilation slots, comprising: The components include a fixed ring (1), a first half-punch piece (4), a second half-punch piece (5), a connecting mechanism (2), and a telescopic mechanism (3), wherein the second half-punch piece (5) rotates around the fixed ring (1). The connecting mechanism (2) is characterized in that it includes a fixing block (201) disposed in the groove at the junction of the first half-punch piece (4) and the second half-punch piece (5), a moving plate (202) pressed by the second half-punch piece (5), a locking short post (203), a limiting rod (204), a first spring (205), and a locking groove (206) opened in the first half-punch piece (4). The moving plate (202) drives the limiting rod (204) to move, the limiting rod (204) drives the locking short post (203) to move, the locking short post (203) locks into the locking groove (206), and the first spring (205) rebounds to prevent the locking short post (203) from moving.

2. A fan-shaped silicon steel sheet with ventilation slots according to claim 1, characterized in that, The telescopic mechanism (3) includes a folding plate (301), a movable arc plate (302), a bidirectional threaded rod (303), a connecting bent rod (304), a connecting rod (305), and a turntable (306). The turntable (306) drives the connecting rod (305) to rotate, and the connecting rod (305) drives the bidirectional threaded rod (303) to rotate. The bidirectional threaded rod (303) causes the movable arc plate (302) to move towards each other. The movable arc plate (302) drives the folding plate (301) to change the size of the ventilation slot through the connecting bent rod (304).

3. A sector-shaped silicon steel sheet with ventilation slots according to claim 1, characterized in that, The connecting mechanism (2) further includes an auxiliary component (208), which includes a first locking block (2081), a second locking block (2082), and a second spring (2083).

4. A fan-shaped silicon steel sheet with ventilation slots according to claim 3, characterized in that, The first engaging block (2081) slides during the movement of the second half-punch (5) until it engages with the second engaging block (2082). The installation of the second spring (2083) enables the first engaging block (2081) and the second engaging block (2082) to engage.

5. A sector-shaped silicon steel lamination with ventilation slots according to claim 1, characterized in that, The connecting mechanism (2) further includes a detachable pressing rod (207) which is mounted on and presses the limiting rod (204).

6. A sector-shaped silicon steel sheet with ventilation slots according to claim 4, characterized in that, The limiting rod (204) presses the second locking block (2082) downward, thereby releasing the engagement between the second locking block (2082) and the first locking block (2081).

7. A sector-shaped silicon steel sheet with ventilation slots according to claim 5, characterized in that, The movement of the limiting rod (204) releases the engagement between the engaging short post (203) and the engaging groove (206).

8. A sector-shaped silicon steel lamination with ventilation slots according to claim 1, characterized in that, The limiting rod (204) drives the engaging short post (203) to move downward and makes the engaging short post (203) contact the inner top wall of the first half-punch piece (4).

9. A fan-shaped silicon steel sheet with ventilation slots according to claim 2, characterized in that, The telescopic mechanism (3) also includes a rotating groove (307), and the turntable (306) is installed in the rotating groove (307).

10. A fan-shaped silicon steel sheet with ventilation slots according to claim 2, characterized in that, Both the folding plate (301) and the connecting rod (304) are made of flexible material.

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