Epoxy resin dry-type transformer positioning structure

Abstract

The utility model relates to an epoxy resin dry-type transformer positioning structure applied to the field of electrical equipment, which comprises a transformer bank body arranged in an outer frame body, the lower inner wall of the outer frame body is fixedly connected with an inner frame base, and the left side and the right side of the upper end of the inner frame base are symmetrically provided with lower butt-joint threaded holes; inner groove holes are symmetrically formed in the left side and the right side of the upper end of the inner frame base, stretchable vertical sleeves are fixedly connected to the lower inner walls of the inner groove holes, a lifting rope is bound to the upper end of the inner frame base, the lifting rope is externally connected with a crane, and the lower end of the transformer bank body is fixedly connected with a bank body base. According to the scheme, when the transformer bank body is mounted in the outer frame body, the upper butt-joint threaded hole is vertically positioned and guided through the stretchable vertical sleeve, so that the upper butt-joint threaded hole and the lower butt-joint threaded hole can be smoothly and accurately positioned, the mounting and positioning efficiency of the transformer bank body in the outer frame body can be effectively improved, and manpower consumption is reduced.

Description

Technical Field

[0001] The utility model relates to an epoxy resin dry-type transformer positioning structure, in particular to an epoxy resin dry-type transformer positioning structure used in the field of power equipment. Background Art

[0002] A three-phase epoxy resin dry-type transformer is a power transformer that uses the principle of electromagnetic induction to convert the voltage and current of a three-phase AC power source. When a three-phase AC power source is connected to the transformer's high-voltage winding, an alternating magnetic field is generated in the iron core. This magnetic field is coupled to the low-voltage winding through the iron core, inducing a corresponding voltage and current in the low-voltage winding. By adjusting the turns ratio of the high-voltage and low-voltage windings, different voltage conversions can be achieved.

[0003] The specification of Chinese patent CN219393115U discloses a lower support and positioning structure for a transformer body, including a support base and a transformer body arranged on the support base, a clamping mechanism and a height adjustment mechanism, which achieves the purpose of stably supporting and positioning the transformer body, and can adjust the height position of the clamped and fixed transformer body. It is suitable for adjusting transformer bodies of different sizes to a suitable height position to facilitate the subsequent smooth assembly operation of the transformer body and meet usage requirements.

[0004] When installing an epoxy resin dry-type transformer in an outer frame, the threaded hole alignment is not accurate enough during the crane lowering process, resulting in the need for repeated adjustments. This time-consuming process involves the initial lifting and lowering, pausing after discovering inaccurate alignment, adjusting the position, and then retrying alignment. This process may need to be repeated many times, significantly extending the installation time of the transformer. Therefore, it is necessary to design an epoxy resin dry-type transformer positioning structure to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when the epoxy resin dry-type transformer is installed in the outer frame, the threaded hole docking degree is not accurate enough during the lowering process of the crane, resulting in the need for repeated adjustment, and repeated adjustment of the threaded hole docking degree takes a lot of time.

[0006] In order to solve the above problems, the utility model provides an epoxy resin dry-type transformer positioning structure, including a transformer assembly installed in an outer frame, the lower inner wall of the outer frame is fixedly connected to the inner frame base, the upper end of the inner frame base is symmetrically provided with lower docking threaded holes on the left and right sides, the upper end of the inner frame base is symmetrically provided with inner slot holes on the left and right sides, the upper and lower corresponding inner slot holes and lower docking threaded holes are connected to each other, the lower inner wall of the inner slot hole is fixedly connected with a stretchable vertical sleeve, the upper end of the inner frame base is bound with a lifting rope, the lifting rope is externally connected to a crane, the lower end of the transformer assembly is fixedly connected to the assembly base, the left and right ends of the assembly base are symmetrically provided with upper docking threaded holes, and the stretchable vertical sleeve passes through the inner slot hole inside and outside.

[0007] In the above-mentioned epoxy resin dry-type transformer positioning structure, when this solution installs the transformer assembly in the outer frame, the upper docking threaded holes are vertically positioned and guided by stretchable vertical sleeves, so that the upper and lower upper docking threaded holes and the lower docking threaded holes can be positioned smoothly and accurately, which can effectively improve the installation and positioning efficiency of the transformer assembly in the outer frame and reduce manpower consumption.

[0008] As a further improvement of the present application, the upper and lower corresponding docking threaded holes and lower docking threaded holes and the inner slot holes are in a vertical state.

[0009] As a further improvement of the present application, a lower slot is provided in the middle of the upper inner wall of the inner frame base, and a pair of springs are fixedly connected to the lower inner wall of the lower slot.

[0010] As a further improvement of the present application, the upper ends of the two springs are fixedly connected to a fine-tuning base plate, and the upper end of the fine-tuning base plate is provided with a plurality of arc-shaped inner grooves.

[0011] As another improved supplement of the present application, the inner end of the arc-shaped inner groove is rotatably connected to a rotating ball, and the upper sides of the left and right ends of the transformer assembly are fixedly connected to protruding side bars.

[0012] As another improved supplement of the present application, the upper end of the protruding side strip is fixedly connected with an arc-shaped connecting ring, and the arc-shaped connecting ring and the sling are bound to each other.

[0013] As another improved supplement of the present application, the two protruding side strips are respectively located directly above the corresponding stretchable vertical sleeves, and the protruding side strips are in contact with the stretchable vertical sleeves.

[0014] In summary, when the transformer assembly is installed in the outer frame, the upper docking threaded hole is vertically positioned and guided by a stretchable vertical sleeve, so that when the lower assembly base of the transformer assembly is docked with the frame base inside the outer frame, the upper and lower upper docking threaded holes and the lower docking threaded holes can be smoothly and accurately positioned, avoiding the inaccurate positioning between the upper docking threaded holes and the lower docking threaded holes, which requires repeated adjustments to the lifting position of the transformer assembly. It can effectively improve the installation and positioning efficiency of the transformer assembly in the outer frame and reduce manpower consumption. At the same time, a fine-tuning base plate is set on it. When the transformer assembly is close to the inner frame base, the fine-tuning base plate uses multiple rotating balls rotating in the arc-shaped inner grooves on the fine-tuning base plate to provide a function for fine-tuning the assembly base under the transformer assembly. The function of the fine-tuning base plate is to gently push the transformer assembly for position adjustment before the crane is removed during the final fixation of the transformer assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram of the transformer assembly hoisting state according to the first embodiment of the present application;

[0016] Figure 2 This is a diagram showing the transformer assembly in the first and second embodiments of the present application being lowered into the outer frame;

[0017] Figure 3 This is an enlarged view of the transformer assembly structure of the first embodiment of the present application;

[0018] Figure 4 This is an enlarged view of the outer frame of the first embodiment of the present application;

[0019] Figure 5 For the first embodiment of this application Figure 4 Middle partial truncated enlarged image;

[0020] Figure 6 This is a diagram showing the installation state of the fine-tuning base plate according to the first embodiment of the present application;

[0021] Figure 7 For the first embodiment of this application Figure 6 A partially cutaway enlarged view of the middle inner frame base.

[0022] Description of the numbers in the figure:

[0023] 1. Outer frame; 2. Inner frame base; 3. Transformer assembly; 4. Lifting rope; 5. Assembly base; 6. Upper docking threaded hole; 7. Stretchable vertical sleeve; 8. Inner slot hole; 9. Lower docking threaded hole; 10. Spring; 11. Fine-tuning base plate; 12. Rotating ball; 13. Protruding side strip; 14. Arc-shaped connecting ring; 16. Arc-shaped inner slot; 17. Lower notch. DETAILED DESCRIPTION

[0024] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0025] The first implementation method:

[0026] Figure 1-5 A positioning structure for an epoxy resin dry-type transformer is shown, comprising a transformer assembly 3 installed in an outer frame 1, the lower inner wall of the outer frame 1 is fixedly connected to an inner frame base 2, lower docking threaded holes 9 are symmetrically opened on the left and right sides of the upper end of the inner frame base 2, inner slot holes 8 are symmetrically opened on the left and right sides of the upper end of the inner frame base 2, the upper and lower corresponding inner slot holes 8 and lower docking threaded holes 9 are connected to each other, a stretchable vertical sleeve 7 is fixedly connected to the lower inner wall of the inner slot hole 8, a hanging rope 4 is bound to the upper end of the inner frame base 2, and the hanging rope 4 is externally connected to a crane, the lower end of the transformer assembly 3 is fixedly connected to an assembly base 5, upper docking threaded holes 6 are symmetrically opened on the left and right ends of the assembly base 5, and the stretchable vertical sleeve 7 passes through the inner slot hole 8 inside and outside.

[0027] Figure 2-7 It shows that the upper and lower corresponding upper docking threaded holes 6 and lower docking threaded holes 9 and the inner slotted holes 8 are in a vertical state. A lower slotted opening 17 is provided in the middle of the upper inner wall of the inner frame base 2. A pair of springs 10 are fixedly connected to the lower inner wall of the lower slotted opening 17. The upper ends of the two springs 10 are fixedly connected to a fine-tuning base plate 11. The upper end of the fine-tuning base plate 11 is provided with a plurality of arc-shaped inner grooves 16. The inner ends of the arc-shaped inner grooves 16 are rotatably connected to a rotating ball 12. The upper sides of the left and right ends of the transformer assembly 3 are fixedly connected to protruding side strips 13. The upper ends of the protruding side strips 13 are fixedly connected to an arc-shaped connecting ring 14. The arc-shaped connecting ring 14 and the suspension rope 4 are bound to each other.

[0028] Figure 1-7The present invention shows that when the transformer assembly 3 is installed in the outer frame 1, the crane is first used to bind and lift the upper end of the transformer assembly 3 using the lifting rope 4. When the transformer assembly 3 is lowered through the top opening of the inner frame base 2, the stretchable vertical sleeve 7 is stretched vertically upward from the inner slot 8. After stretching, the upper docking threaded holes 6 at both ends of the lower assembly base 5 of the transformer assembly 3 can be aligned with the two stretchable vertical sleeves 7 and penetrated. In this way, the upper docking threaded holes 6 are vertically positioned and guided by the stretchable vertical sleeves 7 during the vertical fall of the transformer assembly 3, so that when the lower assembly base 5 of the transformer assembly 3 is docked with the frame base 2 inside the outer frame 1, the upper and lower upper docking threaded holes 6 and the lower docking threaded holes 9 can be smoothly and accurately positioned, avoiding the need for inaccurate positioning between the upper docking threaded holes 6 and the lower docking threaded holes 9. Repeatedly adjusting the hoisting position of the transformer assembly 3 can effectively improve the installation and positioning efficiency of the transformer assembly 3 in the outer frame 1 and reduce manpower consumption. At the same time, a fine-tuning base plate 11 is set on it. When the transformer assembly 3 is close to the inner frame base 2, the fine-tuning base plate 11 uses a plurality of self-rotating balls 12 on the fine-tuning base plate 11 that rotate in the arc-shaped inner grooves 16 to provide a function for fine-tuning the assembly base 5 under the transformer assembly 3. The function of the fine-tuning base plate 11 can be to gently push the transformer assembly 3 to adjust its position during the final fixation of the transformer assembly 3 before the crane is removed. After the assembly base 5 and the inner frame base 2 are completely connected with bolts, the spring 10 under the fine-tuning base plate 11 can use the downward pressure of the transformer assembly 3 to press the fine-tuning base plate 11 down to the inner side of the lower notch 17 to complete the overall tight installation operation.

[0029] The second implementation method:

[0030] Figure 2 The figure shows a positioning structure for an epoxy resin dry-type transformer, in which two protruding side strips 13 are respectively located directly above the corresponding stretchable vertical sleeves 7, and the protruding side strips 13 and the stretchable vertical sleeves 7 are in contact with each other. At the same time, during the lowering process of the transformer assembly 3, the protruding side strips 13 on both sides of the transformer assembly 3 can not only play the role of binding and limiting the hanging rope 4, but also correspond to the position of the stretchable vertical sleeve 7, so that the stretchable vertical sleeve 7 is compressed downward in the process of following the vertical downward movement of the transformer assembly 3, making it easier to press the stretchable vertical sleeve 7 down from a high position, without the need for manual pressure to press the stretchable vertical sleeve 7 from a high position.

[0031] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An epoxy resin dry-type transformer positioning structure, characterized by: The utility model comprises a transformer assembly (3) installed in an outer frame (1), wherein the lower inner wall of the outer frame (1) is fixedly connected to an inner frame base (2), lower docking threaded holes (9) are symmetrically opened on the left and right sides of the upper end of the inner frame base (2), inner slot holes (8) are symmetrically opened on the left and right sides of the upper end of the inner frame base (2), and the upper and lower corresponding inner slot holes (8) and lower docking threaded holes (9) are communicated with each other, the lower inner wall of the inner slot hole (8) is fixedly connected to a stretchable vertical sleeve (7), the upper end of the inner frame base (2) is bound with a hanging rope (4), and the hanging rope (4) is externally connected to a crane, the lower end of the transformer assembly (3) is fixedly connected to an assembly base (5), upper docking threaded holes (6) are symmetrically opened on the left and right ends of the assembly base (5), and the stretchable vertical sleeve (7) passes through the inner slot hole (8) inside and outside.

2. The epoxy resin dry-type transformer positioning structure according to claim 1, characterized in that: The upper and lower corresponding butt-jointed threaded holes (6), the lower butt-jointed threaded holes (9) and the inner slotted hole (8) are in a vertical state.

3. The epoxy resin dry-type transformer positioning structure according to claim 1, characterized in that: A lower notch (17) is provided in the middle of the upper inner wall of the inner frame base (2), and a pair of springs (10) are fixedly connected to the lower inner wall of the lower notch (17).

4. The epoxy resin dry-type transformer positioning structure according to claim 3, characterized in that: The upper ends of the two springs (10) are fixedly connected to a fine-tuning base plate (11), and the upper end of the fine-tuning base plate (11) is provided with a plurality of arc-shaped inner grooves (16).

5. The epoxy resin dry-type transformer positioning structure according to claim 4, characterized in that: The inner end of the arc-shaped inner groove (16) is rotatably connected to a self-rotating ball (12), and the upper sides of both left and right ends of the transformer assembly (3) are fixedly connected to protruding side strips (13).

6. The epoxy resin dry-type transformer positioning structure according to claim 5, characterized in that: The upper end of the protruding side strip (13) is fixedly connected to an arc-shaped connecting ring (14), and the arc-shaped connecting ring (14) and the suspension rope (4) are bound to each other.

7. The epoxy resin dry-type transformer positioning structure according to claim 6, characterized in that: The two protruding side strips (13) are respectively located directly above the corresponding stretchable vertical sleeves (7), and the protruding side strips (13) and the stretchable vertical sleeves (7) are in contact with each other.

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