CN219575299U - Transformer shell structure - Google Patents

Abstract

The utility model discloses a transformer shell structure, which belongs to the technical field of transformers and comprises: a box shell, a body structure and a guiding and fixing structure; an installation cavity is formed inside the box shell, and a hoisting device communicating with the installation cavity is provided on the upper side of the box shell. mouth; the body structure includes part of the hanging core assembly placed inside the installation cavity, the box cover on the upper side of the hanging core assembly and the lifting ring on the box cover, and the upper side of the hanging core assembly protrudes from the lifting port to connect with the box cover; The guiding and fixing structure includes a sleeve, a sliding rod and a stabilizer. The sleeve is built into the installation cavity and connected with the box shell. One end of the sliding rod is connected with the box cover, and the other end of the sliding rod penetrates through the sleeve and is slidably connected with the sleeve. The part has a pressing end that is slidably connected with the sliding rod and a telescopic end connected with the pressing end; this device guides the rising and falling paths of the sliding rod through the sleeve, which improves the stability of the body structure after being hoisted out of the box shell , which is conducive to improving the installation efficiency.

Description

A Transformer Shell Structure

technical field

The utility model relates to the technical field of transformers, in particular to a transformer shell structure.

Background technique

A transformer is a device that changes AC voltage based on the principle of electromagnetic induction. Transformers can be divided into dry-type transformers and oil-immersed transformers according to cooling methods.

When the transformer is installed, after the transformer is transported to the designated location, the transformer equipment needs to be hoisted in place. The mobile crane can be used to hoist the equipment in place. After hoisting in place, in order to ensure that the inside of the transformer is not damaged, the transformer needs to be hoisted. Inspection, that is, lift out the transformer core and winding, and check the internal iron core, winding, lead wire, etc. After the inspection is passed, rinse with transformer oil, clean the bottom of the oil tank, and install the accessories of the transformer again.

For example, an oil-immersed transformer provided by the publication number CN205900251U includes a transformer body, a high-voltage bushing, and a low-voltage bushing. In the oil tank of transformer oil, the oil tank is welded with steel plates. The oil tank of medium and small transformers is composed of a tank shell and a cover. When the oil-immersed transformer is hoisted, its body is fixed by the hoisting device. During the maintenance process, the body of the hoisted body is prone to shaking, which is not convenient for the staff to perform quick maintenance, and the extension length of the hoisting body is difficult to control. It is not easy to reset after hoisting, which affects the installation efficiency.

Utility model content

The purpose of the utility model is to overcome the above-mentioned technical deficiencies, propose a transformer shell structure, and solve the technical problems in the prior art.

In order to achieve the above technical purpose, the technical solution of the present utility model provides a transformer shell structure, including: a box shell, a body structure and a guiding and fixing structure;

A mounting cavity is formed inside the box shell, and a hoisting port communicating with the mounting cavity is provided on the upper side;

The body structure includes part of the hanging core assembly placed inside the installation cavity, the box cover on the upper side of the hanging core assembly and the lifting ring on the box cover. The upper side of the hanging core assembly protrudes from the lifting port and connects with the box cover;

The guiding and fixing structure includes a sleeve, a sliding rod and a stabilizer. The sleeve is built into the installation cavity and connected with the box shell. One end of the sliding rod is connected with the box cover, and the other end of the sliding rod penetrates through the sleeve and is slidably connected with the sleeve. The piece has a pressing end that is slidably connected with the sliding rod and a telescopic end connected with the pressing end. The telescopic end is fixed on the sliding rod and can be stretched to be pressed against the inner wall of the box shell. The sleeve is extended by pressing to drive the telescoping end.

In some embodiments, two sets of guiding and fixing structures are provided, and the two sets of guiding and fixing structures are respectively arranged on both sides below the box cover.

In some embodiments, the guiding and fixing structure further includes a fixed sleeve, the fixed sleeve is connected with the sliding rod, two telescopic ends are provided, and the two telescopic ends are respectively arranged on both sides of the fixed sleeve, and both telescopic ends include a fixed rod and a The connecting cylinder, the fixed rod is connected with the fixed sleeve, and the connecting cylinder is sleeved on the fixed rod and slidably connected with the fixed rod.

In some embodiments, a spring is provided inside the fixing rod, one end of the spring is connected to the fixing rod, and the other end of the spring is connected to the connecting cylinder.

In some embodiments, the pressing end includes a first sliding sleeve and two first connecting rods, the first sliding sleeve is disposed above the fixed sleeve and slidingly sleeved on the sliding rod, and one ends of the two first connecting rods are connected to the first connecting rods respectively. Both sides of a sliding sleeve are rotatably connected, and the other ends of the two first connecting rods are respectively rotatably connected with the two connecting cylinders.

In some embodiments, a bottom sliding sleeve is provided at the corresponding position between the inner wall of the case and the bottom end of the sliding rod, and the bottom sliding sleeve is slidably connected to the sliding rod. The stabilizer also includes a second sliding sleeve and two second connecting rods. The two sliding sleeves are arranged under the fixed sleeve and slidingly sleeved on the sliding rod. One ends of the two second connecting rods are respectively connected to the two sides of the second sliding sleeve in rotation, and the other ends of the two second connecting rods are respectively connected to the two The connecting cylinder is connected by rotation.

In some embodiments, two fixing steels are provided under the box shell, and the two fixing steels are designed in a "C" shape and arranged side by side.

In some embodiments, the suspension core assembly includes an iron core, several windings, several low-voltage insulating bushings and several high-voltage insulating bushings, the iron core is arranged under the tank cover, and several windings are evenly arranged and connected to the iron core , several low-voltage insulating bushings and several high-voltage insulating bushings are arranged above the box cover.

In some embodiments, there are two lifting rings, and the two lifting rings are arranged at intervals on the upper surface of the case cover.

In some embodiments, each surface of the case is provided with a heat dissipation structure for dissipating heat from the transformer. The heat dissipation structure includes a mounting frame and a plurality of heat dissipation fins disposed inside the mounting frame, and the mounting frame is connected to the case.

Compared with the prior art, the beneficial effects of the utility model include: through the provided sleeve and the sliding rod, the sliding rod can slide relative to the sleeve during hoisting; On the sleeve, on the one hand, it can improve the stability of the body structure during subsequent maintenance; on the other hand, the sleeve guides the rising and falling paths of the slide rod, so as to facilitate the hoisting and reset of the body structure, which is conducive to improving installation efficiency ;

Through the set stabilizer, when the slide bar slides out for a certain distance during hoisting, the stabilizer will touch one end of the sleeve to limit the protruding length of the body structure and avoid the misalignment and separation of the body structure and the box shell; press the end It can reach one end of the sleeve and be pressed by the sleeve, thereby driving the telescopic end to extend and press against the inner wall of the box shell. During maintenance, the telescopic end and the sliding rod are used to further support the body structure, which can improve the body structure. Stability after lifting out the case to avoid shaking of the body structure during maintenance.

Description of drawings

Fig. 1 is a perspective view of an embodiment of a transformer housing structure provided by the utility model;

Fig. 2 is a front view sectional structural schematic diagram of the transformer housing structure in Fig. 1;

Fig. 3 is a side view sectional structure schematic diagram of the installation of the stabilizer of the transformer housing structure in Fig. 1;

Fig. 4 is a side view sectional structural schematic diagram of the stabilizer when the body structure of the transformer housing structure in Fig. 1 is installed;

Fig. 5 is a side view sectional structure schematic diagram of the stabilizer when the body structure of the transformer shell structure in Fig. 1 is hoisted;

FIG. 6 is a schematic cross-sectional structural view of the stabilizer of the transformer housing structure in FIG. 1 .

In the figure: 1. Box shell; 11. Installation cavity; 12. Hoisting opening; 13. Bottom sliding sleeve;

2. Body structure; 21. Hanging core assembly; 211. Iron core; 212. Winding; 213. Low-voltage insulating bushing; 214. High-voltage insulating bushing; 22. Box cover; 23. Lifting ring;

3. Guide fixing structure; 31. Sleeve; 32. Slide bar; 33. Stabilizer; 34. Press end; 35. Telescopic end; 331. Fix sleeve; 332. Fix rod; 333. Connecting cylinder; 335, the first sliding sleeve; 336, the first connecting rod; 337, the second sliding sleeve; 338, the second connecting rod;

4. Heat dissipation structure; 41. Installation frame; 42. Heat dissipation fins.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in FIG. 1 to FIG. 3 , the utility model provides a transformer shell structure, including: a box shell 1 , a body structure 2 and a guiding and fixing structure 3 .

An installation cavity 11 is formed inside the box shell 1 , and a hoisting opening 12 communicating with the installation cavity 11 is provided on the upper side thereof.

The body structure 2 includes a hanging core assembly 21 partially placed inside the installation cavity 11, a case cover 22 arranged on the upper side of the hanging core assembly 21, and a suspension ring 23 arranged at the top of the case cover 22. The upper side of the hanging core assembly 21 protrudes from the The hoisting opening 12 is fixedly connected with the case cover 22, and the suspension ring 23 is fixedly connected with the case cover 22;

The guiding and fixing structure 3 includes a sleeve 31, a slide bar 32 and a stabilizer 33. The sleeve 31 is built into the installation cavity 11 and is fixedly connected with the case shell 1. One end of the slide bar 32 is fixedly connected with the box cover 22, and the other end of the slide bar 32 One end passes through the sleeve 31 and is connected to the sleeve 31 by sliding. The sliding rod 32 is arranged vertically. The stabilizer 33 has a pressing end 34 that is slidingly connected to the sliding rod 32 and a telescopic end 35 connected to the pressing end 34. The telescopic end 35 is fixed. The sliding rod 32 is arranged on the sliding rod 32 and can be stretched to be pressed against the inner wall of the box shell 1 . The pressing end 34 is used to abut against the sleeve 31 during hoisting to press until the driving telescopic end 35 is extended.

In this device, the suspension ring 23 provided on the box cover 22 is used to connect with the suspension hook of the hoisting device, so that the hoisting structure lifts the body structure 2, so that the body structure 2 is moved to the outside of the installation cavity 11 through the hoisting port 12, so that When the staff inspects the body structure 2, when hoisting, the box cover 22 will drive the sliding rod 32 to rise, so that the sleeve 31 slides on the sliding rod 32, and the rising and falling paths of the sliding rod 32 are guided by the sleeve 31 , in order to facilitate the hoisting and reset of the body structure 2, when the slide bar 32 slides out for a certain distance, the stabilizer 33 will be against one end of the sleeve 31 to limit the extension length of the body structure 2 and avoid the body structure 2 is dislocated and separated from the box shell 1. At this time, the pressing end 34 can reach one end of the sleeve 31 and be pressed by the sleeve 31, thereby driving the telescopic end 35 to extend and press against the inner wall of the box shell 1. During maintenance, pass The telescopic end 35 and the sliding rod 32 further support the body structure 2. After the body structure 2 is hoisted, the sliding rod 32 can still be inserted on the sleeve 31 correspondingly, which can improve the stability of the body structure 2 during subsequent maintenance.

As shown in FIG. 1 , in some embodiments, each surface of the case 1 is provided with a heat dissipation structure 4 for dissipating heat from the transformer. The heat dissipation structure 4 includes an installation frame 41 and several heat dissipation fins disposed inside the installation frame 41 The fins 42 and the mounting frame 41 are fixedly connected with the casing 1. When in use, the cooling fins 42 can exchange heat with the casing 1, thereby absorbing the heat dissipated from the casing 1, and realizing the heat dissipation of the transformer.

Further, in some embodiments, two lifting rings 23 are provided, and the two lifting rings 23 are arranged at intervals on the upper surface of the case cover 22. When hoisting, the ropes are connected to the two lifting rings 23, and the ropes are hung to the lifting device of the lifting device. Hook for stable lifting.

Further, in some embodiments, two fixing steels are provided under the box shell 1, and the two fixing steels are designed in a "C" shape and arranged side by side. The fixing steels are connected with the installation frame 41 of one of the heat dissipation structures 4 Fixed connection, when hoisting the oil-immersed transformer, place the two fixed steels on the transformer at the corresponding installation positions respectively, and connect the fixed steel with the installation parts to realize the fixing of part 1 of the box shell of the oil-immersed transformer.

As shown in Figure 2, in some embodiments, the hanging core assembly 21 includes an iron core 211, several windings 212, several low-voltage insulating bushings 213 and several high-voltage insulating bushings 214, and the iron core 211 is arranged on the case cover 22 Below the box cover, several windings 212 are evenly arranged and connected to the iron core 211, several low-voltage insulating bushings 213 and several high-voltage insulating bushings 214 are arranged above the box cover 22, several low-voltage insulating bushings 213 and several The high voltage insulating bushings 214 are evenly arranged along the length direction of the case cover 22 .

In order to further improve the stability of the hoisting of the body structure 2, as shown in Figure 2, in some embodiments, two sets of guiding and fixing structures 3 are provided, and the two sets of guiding and fixing structures 3 are respectively arranged on both sides below the box cover 22, The two sets of guide body structures 2 can support the box cover 22 on both sides below the box cover 22 , thereby supporting the entire body structure 2 .

As shown in Figures 3 to 5, in some embodiments, the guiding and fixing structure 3 further includes a fixed sleeve 331, the fixed sleeve 331 is fixedly connected with the slide bar 32, two telescopic ends 35 are provided, and the two telescopic ends 35 are respectively arranged On both sides of the fixed sleeve 331, the two telescopic ends 35 include a fixed rod 332 and a connecting cylinder 333, the fixed rod 332 is fixedly connected with the fixed sleeve 331, and the connecting cylinder 333 is sleeved on the end of the fixed rod 332 away from the fixed sleeve 331 and connected to the fixed sleeve 331. The fixed rod 332 is slidably connected.

The pressing end 34 includes a first sliding sleeve 335 and two first connecting rods 336. The first sliding sleeve 335 is located above the fixed sleeve 331 and is slidably sleeved on the sliding rod 32. One end of the two first connecting rods 336 is respectively connected to Both sides of the first sliding sleeve 335 are hingedly connected, and the other ends of the two first connecting rods 336 are hingedly connected with the two connecting cylinders 333 respectively.

When the sliding rod 32 has slid up to a certain position, the first sliding sleeve 335 can be pressed against the sleeve 31, and under the force of hoisting, the sliding rod 32 and the fixing sleeve 331 continue to move upward, so that the first sliding sleeve 335 is positioned on the sleeve 31. 31 and slides close to the fixed sleeve 331, which drives the connecting cylinder 333 through the first connecting rod 336 to slide to the outside of the fixing rod 332 at one end of the fixing rod 332 until the two connecting rods drive the two connecting cylinders 333 Respectively on both sides of the slide bar 32 against the box shell 1, as shown in Figure 5, to realize the support of the body structure 2 through the slide bar 32 and the stabilizer 33, to ensure the stability of the body structure 2 after hoisting .

Further, in some embodiments, a bottom sliding sleeve 13 is provided at the corresponding position between the inner wall of the box shell 1 and the bottom end of the slide bar 32, and the bottom sliding sleeve 13 is fixedly connected with the bottom end of the inner wall of the box shell 1, and the bottom sliding sleeve 13 is connected to the bottom end of the inner wall of the box shell 1. The sliding rod 32 is slidingly connected, as shown in Figure 5, when hoisting, the sliding rod 32 moves upward and will break away from the bottom sliding sleeve 13. After the body structure 2 is reset, the sliding rod 32 can slide down to the inside of the sliding sleeve, and the stabilizer 33 also includes a second sliding sleeve 337 and two second connecting rods 338. The second sliding sleeve 337 is located under the fixed sleeve 331 and is slidably sleeved on the sliding rod 32. One end of the two second connecting rods 338 is connected to the first connecting rod 338 respectively. Both sides of the two sliding sleeves 337 are hingedly connected, and the other ends of the two second connecting rods 338 are respectively hingedly connected to the two connecting cylinders 333. As shown in FIG. 4, when the sliding rod 32 slides to the inside of the bottom sliding sleeve 13, The second sliding sleeve 337 below the fixing sleeve 331 can reach the upper end of the bottom sliding sleeve 13, and the sliding rod 32 continues to slide downward, pressing the fixing sleeve 331 close to the second sliding sleeve 337, and the second sliding sleeve 337 and the fixing sleeve 331 After getting close, the automatic connecting cylinder 333 slides and reaches the inner wall of the box shell 1, thereby stably supporting the reset body structure 2, so as to facilitate the installation of the body structure 2.

Further, as shown in Figure 6, in some embodiments, a spring 334 is provided inside the fixed rod 332, one end of the spring 334 is fixedly connected to the fixed rod 332, the other end of the spring 334 is fixedly connected to the connecting cylinder 333, and the spring 334 In a normal state, the connecting cylinder 333 shrinks at one end of the fixed rod 332. When the connecting cylinder 333 slides to the outside of the fixed rod 332 to extend the telescopic end 35, the spring 334 will be elongated. After the hoisting is completed, the spring 334 can Automatic reset drives the telescopic end 35 to shrink, so that the connecting cylinder 333 is separated from the box shell 1, and at the same time drives the first sliding sleeve 335 to reset, so that the structure can automatically reset after the hoisting is completed, so that the body structure 2 can be sent into the box shell 1 interior.

Working principle: First, the transformer is transported to the designated location, and the body structure 2 is hoisted by a crane. During the hoisting process, the box cover 22 drives the sliding rod 32 to move upward, so that the sliding rod 32 slides on the sleeve 31 and drives the first The sliding sleeve 335 abuts against the lower end of the sleeve 31. After the hanging core assembly 21 is lifted out, the sleeve 31 then squeezes the first sliding sleeve 335 to a position close to the fixed sleeve 331, thereby driving the connecting sleeve 333 on the fixed rod 332. Slide upward to both sides and press against the inside of the box shell 1 respectively to support the body structure 2. After the maintenance of the body structure 2 is completed, use a crane to put down the body structure 2. At this time, the connecting cylinder 333 shrinks in the On the fixed rod 332, the body structure 2 slides down into the casing 1 as the slide rod 32 slides on the sleeve 31. After the body structure 2 is pressed down, the second sliding sleeve 337 contacts the bottom sliding sleeve 13, and drives again The connecting cylinder 333 slides to both sides on the fixing rod 332 and presses against the inside of the box shell 1 respectively, so as to ensure the stability of the body structure 2 after installation.

The utility model is provided with the sleeve 31 and the sliding rod 32. When hoisting, the sliding rod 32 can slide relative to the sleeve 31. When the body structure 2 is lifted out, the sliding rod 32 can be inserted on the sleeve 31 correspondingly. On the one hand, the stability of the body structure 2 can be improved during follow-up maintenance; on the other hand, the rising and falling path of the slide rod 32 is guided by the sleeve 31, so as to facilitate hoisting and reset of the body structure 2, which is beneficial to improving installation efficiency;

The utility model is provided with a stabilizer 33, when the slide bar 32 slides out a certain distance during hoisting, the stabilizer 33 will be against one end of the sleeve 31 to limit the extension length of the device body structure 2 and avoid the damage of the device body structure. 2. Dislocation and separation from the box shell 1; the pressing end 34 can reach one end of the sleeve 31 and be pressed by the sleeve 31, thereby driving the telescopic end 35 to extend and press against the inner wall of the box shell 1, and pass the telescopic end during maintenance. 35 and slide bar 32 further support the body structure 2, which can improve the stability of the body structure 2 after hanging out of the case shell 1, so as to avoid shaking of the body structure 2 during maintenance.

The specific embodiments of the utility model described above do not constitute a limitation to the protection scope of the utility model. Any other corresponding changes and deformations made according to the technical concept of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (10)

1. A transformer housing structure, comprising:

the box comprises a box shell, wherein an installation cavity is formed in the box shell, and a hoisting opening communicated with the installation cavity is formed in the upper side of the box shell;

the device body structure comprises a hanging core component, a box cover and a hanging ring, wherein the hanging core component is partially arranged in the installation cavity, the box cover is arranged on the upper side of the hanging core component, the hanging ring is arranged on the box cover, and the upper side of the hanging core component protrudes out of the hanging opening and is connected with the box cover;

the guide fixing structure comprises a sleeve, a sliding rod and a stabilizing piece, wherein the sleeve is arranged in the mounting cavity and is connected with the box shell, one end of the sliding rod is connected with the box cover, the other end of the sliding rod penetrates through the sleeve and is connected with the sleeve in a sliding mode, the stabilizing piece is provided with a pressing end which is connected with the sliding rod in a sliding mode and a telescopic end which is connected with the pressing end, the telescopic end is fixedly arranged on the sliding rod and can stretch to tightly prop against the inner wall of the box shell, and the pressing end is used for being propped against the sleeve to push to drive the telescopic end to stretch when being hoisted.

2. The transformer housing structure according to claim 1, wherein the guide fixing structure is provided with two sets, and the two sets of the guide fixing structures are respectively arranged on both sides below the case cover.

3. The transformer housing structure according to claim 1, wherein the guiding and fixing structure further comprises a fixing sleeve, the fixing sleeve is connected with the sliding rod, two telescopic ends are arranged on two sides of the fixing sleeve respectively, each telescopic end comprises a fixing rod and a connecting cylinder, the fixing rod is connected with the fixing sleeve, and the connecting cylinders are sleeved on the fixing rod and are in sliding connection with the fixing rod.

4. A transformer housing structure according to claim 3, wherein a spring is provided in the fixing rod, one end of the spring is connected to the fixing rod, and the other end of the spring is connected to the connecting tube.

5. The transformer housing structure according to claim 3, wherein the pressing end comprises a first sliding sleeve and two first connecting rods, the first sliding sleeve is arranged above the fixed sleeve and is slidably sleeved on the sliding rod, one ends of the two first connecting rods are respectively connected with two sides of the first sliding sleeve in a rotating manner, and the other ends of the two first connecting rods are respectively connected with the two connecting cylinders in a rotating manner.

6. The transformer shell structure according to claim 3, wherein a bottom sliding sleeve is arranged at a position corresponding to the bottom end of the sliding rod on the inner wall of the shell, the bottom sliding sleeve is in sliding connection with the sliding rod, the stabilizing piece further comprises a second sliding sleeve and two second connecting rods, the second sliding sleeve is arranged below the fixed sleeve and is in sliding sleeve arrangement on the sliding rod, one ends of the two second connecting rods are respectively in rotary connection with two sides of the second sliding sleeve, and the other ends of the two second connecting rods are respectively in rotary connection with the two connecting cylinders.

7. The transformer housing structure according to claim 1, wherein two fixed steels are arranged below the case, and the two fixed steels are of a C-shaped structural design and are arranged in parallel.

8. The transformer housing structure of claim 1, wherein the suspension core assembly comprises an iron core, a plurality of windings, a plurality of low-voltage insulating sleeves and a plurality of high-voltage insulating sleeves, the iron core is arranged below the case cover, a plurality of windings are uniformly arranged and connected with the iron core, and a plurality of low-voltage insulating sleeves and a plurality of high-voltage insulating sleeves are arranged above the case cover.

9. The transformer housing structure of claim 1, wherein two of said hanging rings are provided, and two of said hanging rings are spaced apart from each other on an upper surface of said case cover.

10. The transformer housing structure according to claim 1, wherein each surface of the case is provided with a heat dissipation structure for dissipating heat from the transformer, the heat dissipation structure comprises a mounting frame and a plurality of heat dissipation fins arranged inside the mounting frame, and the mounting frame is connected with the case.