A small hole yoke structure for transformer coil positioning

Abstract

The utility model discloses a small hole yoke structure for transformer coil positioning belongs to transformer production equipment technical field, including support plate, is equipped with the clamping post of recess on the support plate, the positioning ring is connected with the connecting block, is equipped with spring no.

Description

Technical Field

[0001] This utility model relates to the field of transformer production equipment technology, and in particular to a small-hole yoke structure for positioning transformer coils. Background Technology

[0002] In the production and assembly process of transformers, the precise positioning of the coil, iron core, and yoke is a key step to ensure its electromagnetic performance and structural stability. Therefore, a specific yoke positioning structure is usually required to assist in fixing and calibrating the coil.

[0003] However, existing positioning structures often use manual lifting and lowering followed by bolt locking for vertical height adjustment. This method is not only cumbersome and requires frequent tool use, but also makes it difficult to achieve rapid and precise positioning. More importantly, if the locking force is insufficient, the positioning component may slip, affecting the reliability of positioning. At the same time, when adjusting the position of the yoke, existing technology often relies on simple manual push-pull combined with set screw locking, which results in low fine-tuning accuracy and makes it difficult to meet the requirements of high-precision positioning. In addition, when the yoke moves to the end of its stroke, it is usually rigidly impacted and limited. This impact may not only cause equipment vibration, but also cause wear or damage to structural components over long-term use, lacking the necessary buffer protection mechanism.

[0004] Therefore, this utility model proposes a small-hole yoke structure for positioning transformer coils to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems of cumbersome vertical adjustment operation, unreliable locking, low front and rear position adjustment accuracy and lack of buffer protection in the existing small hole yoke structure for transformer coil positioning, this utility model aims to provide a small hole yoke structure for transformer coil positioning with improved structure that can effectively solve the above problems.

[0006] This utility model provides a small hole yoke structure for positioning transformer coils, including: a base, a support plate, an L-shaped yoke, a positioning ring; as well as a locking post, a connecting block, a trapezoidal locking block, a spring, and an adjustment mechanism.

[0007] The locking post is located on the support plate, and the locking post has multiple grooves.

[0008] Furthermore, the positioning ring is connected to the connecting block, and the connecting block is provided with a second spring for pushing the trapezoidal locking block. The trapezoidal locking block extends out and locks into the groove under the action of the second spring. The adjusting mechanism includes a knob and a threaded rotating rod. The connecting block is combined in a way that it can slide along the locking post. The adjusting mechanism is combined by being installed on the support plate. The threaded rotating rod is combined with the L-shaped yoke by a transmission connection. The knob is used to drive the threaded rotating rod to rotate, so as to push the L-shaped yoke to move back and forth.

[0009] Preferably, the connecting block is further provided with a pulling post, which is linked with the trapezoidal locking block and is used to retract the trapezoidal locking block and disengage it from the groove when pulled.

[0010] Preferably, the trapezoidal block has an inclined surface, and the groove is a semi-circular hole; the inclined surface of the trapezoidal block contacts the arc-shaped edge of the groove when the connecting block moves upward, and is guided to slide inward.

[0011] Preferably, the lower end of the groove is used to contact the bottom of the trapezoidal block to support the trapezoidal block inside the groove.

[0012] Preferably, the adjustment mechanism further includes an L-shaped connecting plate and a fixing plate, wherein the fixing plate provides rotational support for the threaded rod.

[0013] Preferably, the adjustment mechanism further includes a limiting post and a spring, the spring being fitted onto the limiting post and located between the L-shaped yoke and the L-shaped connecting plate, for providing bidirectional buffering.

[0014] Preferably, the adjusting mechanism further includes a shim, which is disposed at the end of the threaded rod to protect the threaded rod.

[0015] Preferably, the connection between the L-shaped connecting plate and the support plate is a fixed installation.

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

[0017] 1. This utility model solves the problems of complex vertical adjustment operation, inaccurate positioning, and easy slippage of the transformer coil positioning structure in the prior art by setting a trapezoidal locking block that can automatically lock into the locking post groove under the action of a spring, and a pulling post for retracting the trapezoidal locking block. It achieves the technical effect of simple vertical positioning operation, accurate segmentation, and reliable locking.

[0018] 2. This utility model uses a knob-driven threaded rod adjustment mechanism to translate the L-shaped yoke, and utilizes a spring and limit post structure to provide buffering. This solves the problems of low accuracy in adjusting the front and rear positions of the yoke in the prior art, as well as rigid impact and easy damage to components during movement and limiting. It achieves the technical effects of accurate horizontal position adjustment, labor-saving operation, and bidirectional buffer protection. Attached Figure Description

[0019] Figure 1 This is a front perspective view of a small-hole yoke structure for positioning transformer coils proposed in this utility model;

[0020] Figure 2 This is a partial structural exploded view of an L-shaped connecting plate for a small-hole yoke structure used for positioning transformer coils, as proposed in this utility model.

[0021] Figure 3 This is a partial structural exploded view of the positioning ring of a small-hole yoke structure for positioning transformer coils proposed in this utility model;

[0022] Figure 4 This is a partial structural disassembly diagram of the connecting block of a small-hole yoke structure for positioning transformer coils proposed in this utility model.

[0023] Legend:

[0024] 1. L-shaped yoke; 2. Adjustment mechanism; 201. L-shaped connecting plate; 202. Fixing plate; 203. Threaded rotating rod; 204. Washer; 205. Knob; 206. Limiting post; 207. Spring 1; 3. Support plate; 4. Locking post; 5. Base; 6. Positioning ring; 7. Connecting block; 8. Spring 2; 9. Trapezoidal locking block; 10. Pulling post. 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 Figure 1A small-hole yoke structure for positioning transformer coils includes an integral support frame and a vertical positioning assembly and a horizontal adjustment assembly mounted on the support frame. The support frame includes a base 5 and a support plate 3 fixedly connected to the base 5. The support plate 3 provides an installation reference for the entire device. The vertical positioning assembly includes a locking post 4 fixedly mounted on the support plate 3 and a positioning ring 6 slidably engaged with the locking post 4 via a connecting block 7. The connecting block 7 can drive the positioning ring 6 to move up and down along the length of the locking post 4 to adjust the vertical position. The horizontal adjustment assembly includes an adjustment mechanism 2 and an L-shaped yoke 1. The adjustment mechanism 2 is mounted on the support plate 3. The L-shaped yoke 1 is moved back and forth relative to the support plate 3 via the adjustment mechanism 2 to adjust the horizontal position. Specifically, as shown... Figure 3 and Figure 4 As shown, the connecting block 7 internally houses a trapezoidal locking block 9 and a spring 8 for vertical locking. The connecting block 7 also has a pull post 10 for unlocking. Figure 2 As shown, the adjustment mechanism 2 is an independent adjustment module, including a knob 205 and a threaded rod 203 for driving, as well as an L-shaped connecting plate 201 and a fixing plate 202 for providing installation and support. The adjustment mechanism 2 also includes a limit post 206, a spring 207 and a washer 204 for providing buffer protection. By rotating the knob 205, the L-shaped yoke 1 can be driven to perform precise linear reciprocating motion.

[0028] Please refer to Figure 3 and Figure 4The locking post 4 is vertically fixed to the support plate 3, and multiple semi-circular holes are evenly distributed on the surface of the locking post 4 along its length direction as grooves. The connecting block 7 is sleeved on the outside of the locking post 4 and can slide along the axial direction of the locking post 4. The connecting block 7 has a receiving cavity inside, and the trapezoidal locking block 9 and spring 8 are placed in the receiving cavity. One end of spring 8 abuts against the inner wall of the receiving cavity, and the other end abuts against the trapezoidal locking block 9, thereby continuously applying an elastic force to the trapezoidal locking block 9 to make it extend towards the locking post 4. The trapezoidal locking block 9 has a bevel. In the assembled state, when the positioning ring 6 is lifted upward, the connecting block 7 slides upward simultaneously. The bevel of the trapezoidal locking block 9 will contact the protruding surface between two adjacent grooves on the locking post 4, and overcome the spring 8 under the action of external force. The elastic force causes the trapezoidal block 9 to retract inward and slide into the receiving cavity. When the connecting block 7 continues to move upward until the trapezoidal block 9 aligns with the lower groove, the trapezoidal block 9 will automatically pop out and lock into the groove under the action of the spring 8. The bottom of the trapezoidal block 9 and the lower end face of the groove form a stable support. This spring-driven stepped locking structure ensures that the positioning ring 6 can be locked step by step during adjustment and will not slide down. In order to achieve downward adjustment, the connecting block 7 is also provided with a pull post 10. One end of the pull post 10 is linked to the trapezoidal block 9, and the other end extends out of the connecting block 7. When it is necessary to reduce the height, pulling the pull post 10 can drive the trapezoidal block 9 to retract inward, so that it completely disengages from the groove, thereby releasing the locking state. At this time, the positioning ring 6 can be pulled down freely.

[0029] As a preferred embodiment, please refer to Figure 2An adjustment mechanism 2 for a small-hole yoke structure used for positioning transformer coils is provided as an integral module. Its components provide precise drive and protection for adjusting the front and rear positions of the L-shaped yoke 1. The adjustment mechanism 2 includes an L-shaped connecting plate 201, a fixing plate 202, a threaded rotating rod 203, a washer 204, a knob 205, a limiting post 206, and a spring 207. The L-shaped connecting plate 201 is fixedly mounted on the upper part of the support plate 3, serving as the mounting base for the adjustment mechanism 2. The fixing plate 202 is vertically fixed to the L-shaped connecting plate 201. The fixing plate 202 has a through hole for the threaded rotating rod 203 to pass through, providing rotational support for the rotation of the threaded rotating rod 203. The knob 205 is fixedly connected to one end of the threaded rotating rod 203. The other end is connected to the L-shaped yoke 1 via a threaded drive. In another preferred embodiment, in order to provide buffering during the movement of the L-shaped yoke 1, the adjusting mechanism 2 also includes a limiting post 206 and a spring 207. One end of the limiting post 206 is fixedly connected to the L-shaped connecting plate 201, and the other end slides through the through hole on the L-shaped yoke 1. The spring 207 is sleeved on the limiting post 206 and is located between the L-shaped yoke 1 and the L-shaped connecting plate 201. In yet another preferred embodiment, in order to prevent the L-shaped yoke 1 from moving excessively and damaging the threaded rod 203, the adjusting mechanism 2 also includes a shim 204. The shim 204 is located at the end of the threaded rod 203 and between the threaded rod 203 and the L-shaped yoke 1.

[0030] Working principle:

[0031] When upward positioning is required, lift the positioning ring 6 on the base 5 upward. At this time, the positioning ring 6 will drive the connecting block 7 to move upward. At the same time, the trapezoidal locking block 9 on the connecting block 7 will slide along the locking post 4 at the lower end of the support plate 3. The locking post 4 has multiple semi-circular holes. When the inclined surface on the trapezoidal locking block 9 contacts the arc groove on the locking post 4, the trapezoidal locking block 9 slides inward and squeezes the spring 8. At this time, the trapezoidal locking block 9 slides into the interior of the connecting block 7 until the next groove pops out again. After the lower end of the groove on the locking post 4 contacts the bottom of the trapezoidal locking block 9, it can support the trapezoidal locking block 9 inside the groove and prevent the connecting block 7 from moving downward. When the positioning ring 6 needs to be adjusted downward, pull the pulling column 10. The pulling column 10 will drive the trapezoidal locking block 9 to retract into the interior of the connecting block 7. At this time, the positioning ring 6 can be pulled downward until it is adjusted to a suitable position. This realizes that the positioning ring 6 can be adjusted to adapt to multiple positions by adjusting its height.

[0032] When the position of the L-shaped yoke 1 needs to be adjusted, it is adjusted through the adjustment mechanism 2. Rotating the knob 205 will cause the threaded rod 203 to rotate, which will push the L-shaped yoke 1 to move back and forth. At the same time, the fixing plate 202 provides support for the threaded rod 203, and the shim 204 can protect the threaded rod 203 and prevent the L-shaped yoke 1 from moving too far and damaging the threaded rod 203. When the L-shaped yoke 1 moves forward, it will stretch the spring 207 on the limit post 206, which will play a buffering role. When it moves backward, the spring 207 will be compressed to prevent excessive movement and damage to the L-shaped connecting plate 201. This realizes the function of freely adjusting the position of the L-shaped yoke 1 according to the usage scenario.

Claims

1. A small-hole yoke structure for positioning transformer coils, comprising: Base (5); Support plate (3), which is fixed to the base (5); L-shaped yoke (1); Positioning ring (6); Its features are, The support plate (3) is provided with a locking post (4), and the locking post (4) is provided with multiple grooves; The positioning ring (6) is connected to a connecting block (7), which can slide along the locking post (4); The connecting block (7) is provided with a trapezoidal locking block (9) and a second spring (8). The second spring (8) is used to push the trapezoidal locking block (9) out and into the groove. The small-hole yoke structure for positioning transformer coils also includes an adjustment mechanism (2); The adjustment mechanism (2) is mounted on the support plate (3). The adjustment mechanism (2) includes a knob (205) and a threaded rod (203). The threaded rod (203) is connected to the L-shaped yoke (1) in a transmission manner. The knob (205) is used to drive the threaded rod (203) to rotate, so as to push the L-shaped yoke (1) to move back and forth.

2. The small-hole yoke structure for positioning transformer coils according to claim 1, characterized in that, The connecting block (7) is also provided with a pulling column (10), which is linked with the trapezoidal locking block (9) to retract the trapezoidal locking block (9) and disengage from the groove when pulled.

3. The small-hole yoke structure for positioning transformer coils according to claim 1, characterized in that, The trapezoidal block (9) has an inclined surface, and the groove is a semi-circular hole; when the connecting block (7) moves upward, the inclined surface of the trapezoidal block (9) contacts the arc-shaped edge of the groove and is guided to slide inward.

4. The small-hole yoke structure for positioning transformer coils according to claim 3, characterized in that, The lower end of the groove is used to contact the bottom of the trapezoidal block (9) to support the trapezoidal block (9) inside the groove, thereby preventing the connecting block (7) from moving downward.

5. The small-hole yoke structure for positioning transformer coils according to claim 1, characterized in that, The adjustment mechanism (2) further includes an L-shaped connecting plate (201) and a fixing plate (202), the fixing plate (202) providing rotational support for the threaded rod (203).

6. The small-hole yoke structure for positioning transformer coils according to claim 5, characterized in that, The adjustment mechanism (2) further includes a limiting post (206) and a spring (207). The spring (207) is sleeved on the limiting post (206) and located between the L-shaped yoke (1) and the L-shaped connecting plate (201). It is used to be compressed when the L-shaped yoke (1) moves backward and stretched when it moves forward.

7. A small-hole yoke structure for positioning transformer coils according to claim 5, characterized in that, The adjustment mechanism (2) also includes a shim (204), which is located at the end of the threaded rod (203) to protect the threaded rod (203) from damage caused by excessive movement of the L-shaped yoke (1).

8. A small-hole yoke structure for positioning transformer coils according to claim 5, characterized in that, The L-shaped connecting plate (201) is fixedly installed on the support plate (3).

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