Stably-erected special transformer

Abstract

The utility model relates to the technical field of transformers, and discloses a special transformer stable in erection, which comprises an erection base and a transformer body, the transformer body is mounted above the erection base, a pair of n-shaped channel steel is fixedly connected to the lower surface of the transformer body, and the n-shaped channel steel is connected with the erection base through an expansion bolt group. According to the special transformer stable in erection, through cooperation of the erection base table, the transformer body, the n-shaped channel steel, the expansion bolt set and the first stability augmentation unit, water vapor can be prevented from making contact with the expansion bolt set from a gap between the n-shaped channel steel and the erection base table, and therefore the expansion bolt set is effectively prevented from being corroded; original mechanical strength and thread matching precision are kept for a long time, the possibility of inclination, displacement or falling of the transformer body caused by looseness and even breakage is greatly reduced, and the stability of the erected equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically a special transformer with stable installation. Background Technology

[0002] Specialty transformers are a type of transformer specifically designed and manufactured for particular industrial scenarios, environmental conditions, or technical requirements. Their core function lies in breaking away from the traditional transformer's single function of voltage transformation. Through material innovation, structural optimization, and functional integration, they meet the stringent requirements of complex loads, extreme environments, or special processes. As an indispensable core device in power systems, the function of specialty transformers has expanded beyond traditional voltage transformation. They are widely used in industrial, mining, rail transportation, and outdoor power distribution scenarios. Their installation stability and durability directly affect equipment operational safety and power supply reliability.

[0003] Currently, special transformers are typically fixed directly to a concrete foundation using expansion bolts for positioning. However, this installation method has certain drawbacks during long-term outdoor operation. For example, special transformers in outdoor environments are exposed to humidity, salt spray, corrosive industrial gases (such as sulfides in chemical plants), or high-humidity coastal climates, which can easily lead to electrochemical corrosion of the expansion bolts and the metal components of the transformer base. Corrosion weakens the mechanical strength and thread fit precision of the bolts, causing loosening or even breakage of the connection, which can then lead to transformer tilting, displacement, or falling, and in severe cases, even threaten the safety of equipment and personnel.

[0004] In addition, special transformers are susceptible to equipment vibration, environmental vibration (such as subway train operation, mining machinery operation) or external impact during operation. Traditional rigid connection expansion bolts lack a relatively effective structure to resist environmental vibration (relying only on elastic washers). Long-term use can easily lead to loosening of fastening nuts, reduce the stability of the installation structure, and is not conducive to the stable erection of special transformers. Utility Model Content

[0005] The purpose of this utility model is to provide a special transformer that can be erected stably, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special transformer with stable installation, comprising: an installation base and a transformer body, wherein the transformer body is installed on the upper part of the installation base, a pair of shaped channel steels are fixedly connected to the lower surface of the transformer body, the shaped channel steels are connected to the installation base through an expansion bolt group, a stabilization unit one is provided above the expansion bolt group, a rubber pad is fixedly connected to the lower surface of the shaped channel steels, the rubber pad abuts against the contact surface of the installation base, the stabilization unit one includes: a protective sleeve, the protective sleeve is located above the expansion bolt group, the protective sleeve is threadedly connected to the shaped channel steels through a threaded groove, a collar is fixedly sleeved on the outer wall of the protective sleeve, a rubber ring is fixedly connected to the lower surface of the collar, the rubber ring abuts against the contact surface of the shaped channel steels, and a stabilization unit two is provided inside the upper part of the protective sleeve.

[0007] Preferably, the second stabilizing unit includes: a hexagonal slot block, which is fitted onto the outside of the fastening nut at the top of the expansion bolt assembly. A circular groove is formed at the center of the upper surface of the hexagonal slot block. A spring is fixed to the inner wall of the circular groove. A vertical rod is fixed to the inner ring of the spring. A vertical cylinder is fitted onto the outer wall of the vertical rod. The contact surface of the vertical cylinder and the protective cylinder is fixedly connected. A pair of sliding strips are fixed to the outer wall of the vertical rod. The sliding strips are connected to the vertical cylinder through a sliding limit connection. A compression spring is fitted onto the outer side of the vertical cylinder. The bottom end of the compression spring is fixedly connected to the hexagonal slot block. A circular ring is fixed to the top end of the compression spring. The circular ring is rotatably connected to the protective cylinder through a ball bearing.

[0008] Preferably, an auxiliary unit is provided above the collar, the auxiliary unit including: multiple grooves, the multiple grooves being evenly opened on the upper surface of the collar, a screw being provided inside the groove, the screw being threadedly connected to the collar, the screw penetrating the collar and abutting against the contact surface of the channel steel.

[0009] Preferably, a plug is engaged above the interior of the groove.

[0010] Preferably, the screw is abutted against the channel steel via a grooved ring, the grooved ring being formed on the surface of the channel steel.

[0011] Preferably, the upper surface of the channel steel is provided with multiple through slots.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this special transformer with stable erection has the following advantages over traditional technology:

[0013] Through the coordination of the erection base, transformer body, channel steel, expansion bolt assembly, and stabilization unit, the transformer body is installed on the surface of the erection base using the expansion bolt assembly. Then, the installers use a protective sleeve to connect to the threaded grooves on the surface of the channel steel, so that the rubber ring on the lower surface of the collar fixed to the outer wall of the protective sleeve abuts against the surface of the channel steel. The protective sleeve, collar, and rubber ring can seal and protect the exposed parts of the expansion bolt assembly. The rubber gasket set between the channel steel and the erection base can prevent moisture from coming into contact with the expansion bolt assembly through the gap between the channel steel and the erection base, thereby effectively preventing corrosion of the expansion bolt assembly, maintaining its original mechanical strength and thread fit accuracy for a long time, greatly reducing the possibility of the transformer body tilting, shifting, or falling due to loosening or even breakage, and improving the stability of the equipment after installation.

[0014] By coordinating the erection base, transformer body, several types of channel steel, expansion bolt assembly, and stabilization unit one and stabilization unit two, before the casing is threaded into the threaded groove, the installer first places the hexagonal slot block on the outside of the nut at the top of the expansion bolt assembly. After placement, the casing is pressed down to align with the threaded groove, and then the casing is rotated clockwise to connect with the threaded groove, completing the casing installation. During this process, the compression spring continuously compresses and deforms, the vertical rod slides deeper into the vertical cylinder, and the hexagonal slot block can move relative to the casing. Due to the fitting relationship between the hexagonal slot block and the nut at the top of the expansion bolt assembly, the hexagonal slot block will not rotate with the casing, thus causing the spring to contract and deform. The rebound potential energy generated by the spring can apply a clockwise rotational force to the hexagonal slot block and the nut at the top of the expansion bolt assembly. During the subsequent use of the transformer body, if it is affected by equipment vibration, environmental vibration (such as subway train operation, mining machinery operation), or external impact, the nut at the top of the expansion bolt assembly will not loosen in the opposite direction, relying not only on the elastic washer. This is beneficial to the stable erection of special transformers.

[0015] After the installation of the casing is completed through the coordination of the base, transformer body, channel steel, expansion bolt assembly, stabilization unit 1, and auxiliary units, the installer rotates the screw inside the groove clockwise so that the bottom end of the screw abuts against the surface of the channel steel. This improves the stability of the casing after the threaded connection with the channel steel, and ensures that the part of the expansion bolt assembly located inside the casing is in a sealed environment for a long time, further improving the stability of the transformer body after installation. Attached Figure Description

[0016] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0020] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0021] Figure 5 for Figure 3 Top partial sectional view of the central vertical rod, sliding bar, and vertical cylinder;

[0022] Figure 6 for Figure 2 A partial top view of a medium-sized channel steel.

[0023] In the diagram: 1. Erecting base; 2. Transformer body; 3. Type A channel steel; 4. Expansion bolt assembly; 5. Rubber pad; 6. Casing; 7. Threaded groove; 8. Collar; 9. Rubber ring; 10. Hexagonal slot block; 11. Circular groove; 12. Vertical rod; 13. Spring; 14. Vertical cylinder; 15. Sliding bar; 16. Compression spring; 17. Groove; 18. Screw; 19. Plug; 20. Through groove; 21. Textured ring; 22. Circular ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6This utility model provides a technical solution: a special transformer with stable installation, comprising: an installation base 1 and a transformer body 2. The transformer body 2 is installed on the top of the installation base 1. A pair of channel steels 3 are fixedly connected to the lower surface of the transformer body 2. The channel steels 3 are connected to the installation base 1 through an expansion bolt group 4. A stabilization unit 1 is provided above the expansion bolt group 4. A rubber pad 5 is fixedly connected to the lower surface of the channel steels 3. The rubber pad 5 abuts against the contact surface of the installation base 1. The stabilization unit 1 includes: a protective sleeve 6. The protective sleeve 6 is located above the expansion bolt group 4. The protective sleeve 6 is threadedly connected to the channel steels 3 through a threaded groove 7. A collar 8 is fixedly sleeved on the outer wall of the protective sleeve 6. A rubber ring 9 is fixedly connected to the lower surface of the collar 8. The rubber ring 9 abuts against the contact surface of the channel steels 3. A stabilization unit 2 is provided inside the upper part of the protective sleeve 6.

[0026] In the specific implementation process, it is worth noting that the channel steel 3, as a key supporting component connecting the transformer body 2 and the supporting base 1, is made of high-strength steel and has good mechanical properties and deformation resistance. Its unique channel steel structure design not only increases the contact area with the transformer body 2 and improves the stability of the connection, but also disperses the pressure applied by the transformer body 2 to a certain extent, avoiding local stress concentration. The rubber pad 5 is made of high-quality rubber material that is resistant to aging and corrosion. Its soft and elastic properties can effectively fill the gap between the channel steel 3 and the supporting base 1, playing a good sealing and buffering role, preventing water vapor, dust and other impurities from entering, thereby protecting the expansion bolt group 4 from corrosion and ensuring the long-term stability of the connection. The casing 6 adopts... Made of high-strength metal materials, such as stainless steel or alloy steel, this material has excellent mechanical strength and corrosion resistance, and can resist the erosion of harsh environments such as humidity, acids and alkalis, ensuring long-term stable use. It is located above the expansion bolt group 4 and is tightly connected to the channel steel 3 through a precisely designed threaded groove 7. This connection method is not only convenient for installation and disassembly, but also firm and reliable. The rubber ring 9 fixed to the lower surface of the collar 8 is made of rubber with good elasticity and strong sealing performance. It is tightly pressed against the contact surface of the channel steel 3 to form a good sealing effect, effectively preventing external dust, moisture and other impurities from entering the inside of the casing 6, thereby protecting the expansion bolt group 4 from corrosion, ensuring its stable performance, and providing a basic guarantee for the stable erection of the entire special transformer.

[0027] Furthermore, the second stabilizing unit includes: a hexagonal slot block 10, which is fitted onto the outside of the fastening nut at the top of the expansion bolt assembly 4. A circular groove 11 is provided at the center of the upper surface of the hexagonal slot block 10. A spring 13 is fixedly connected to the inner wall of the circular groove 11. A vertical rod 12 is fixedly connected to the inner ring of the spring 13. A vertical cylinder 14 is fitted onto the outer wall of the vertical rod 12. The contact surface of the vertical cylinder 14 is fixedly connected to the contact surface of the protective cylinder 6. A pair of sliding strips 15 are fixedly connected to the outer wall of the vertical rod 12. The sliding strips 15 are connected to the vertical cylinder 14 through sliding limit connection. A compression spring 16 is fitted onto the outer side of the vertical cylinder 14. The bottom end of the compression spring 16 is fixedly connected to the hexagonal slot block 10. A circular ring 22 is fixedly connected to the top of the compression spring 16. The circular ring 22 is rotatably connected to the protective cylinder 6 through a ball bearing.

[0028] In the specific implementation process, it is worth noting that the hexagonal design of the hexagonal slot block 10 allows it to fit tightly against the fastening nut at the top of the expansion bolt assembly 4, ensuring that the hexagonal slot block 10 will not rotate during the rotation of the protective sleeve 6, thus ensuring that the spring 13 can function normally. The spring 13 is made of a high-elasticity alloy material, which has good elasticity and durability, and can generate sufficient rebound potential energy when subjected to external force, providing continuous power to prevent the nut from loosening. The cooperative design of the vertical rod 12 and the vertical sleeve 14, through the sliding limit of the slide bar 15, allows the vertical rod 12 to only move in a straight line within the vertical sleeve 14. The compression spring 16 plays a role in buffering and assisting in reset. During the rotation of the protective sleeve 6, the compression and extension of the compression spring 16 can absorb and release some energy, making the operation of the entire system more stable. The ring 22 is rotatably connected to the protective sleeve 6 through a ball bearing, reducing frictional resistance and making the rotation of the protective sleeve 6 smoother.

[0029] Furthermore, an auxiliary unit is provided above the collar 8. The auxiliary unit includes multiple grooves 17, which are evenly distributed on the upper surface of the collar 8. Screws 18 are provided inside the grooves 17. The screws 18 are threadedly connected to the collar 8 and pass through the collar 8 to abut against the contact surface of the channel steel 3.

[0030] In the specific implementation process, it is worth noting that multiple grooves 17 are evenly distributed on the upper surface of the collar 8. This design allows the screw 18 to reinforce the connection between the sleeve 6 and the channel steel 3 from multiple directions, improving the overall stability. The screw 18 is made of high-strength alloy steel, which has sufficient strength and hardness to withstand large external forces. When the screw 18 penetrates the contact surface between the collar 8 and the channel steel 3 and abuts against it, it can further enhance the connection strength between the sleeve 6 and the channel steel 3, preventing the sleeve 6 from loosening or shifting during use.

[0031] Furthermore, a plug 19 is engaged with the upper part of the inside of the groove 17.

[0032] In the specific implementation process, it is worth noting that the plug 19 is made of elastic materials such as rubber or plastic, and its shape matches the internal shape of the groove 17. It can be tightly locked inside the groove 17. The main function of the plug 19 is to prevent dust, moisture and other impurities from entering the groove 17, thereby protecting the screw 18 from corrosion and extending the service life of the screw 18.

[0033] Furthermore, the screw 18 is pressed against the channel steel 3 by the grooved ring 21, which is formed on the surface of the channel steel 3.

[0034] In the specific implementation process, it is worth noting that the grooved ring 21 is a ring-shaped area with a rough texture formed on the surface of the channel steel 3. This rough texture can increase the friction between the screw 18 and the channel steel 3, so that the screw 18 can be more firmly pressed against the channel steel 3 after tightening, further improving the stability of the connection. The processing technology of the grooved ring 21 can be knurling, sandblasting, etc.

[0035] Furthermore, multiple through slots 20 are provided on the upper surface of the channel steel 3.

[0036] In the specific implementation process, it is worth noting that these through slots 20 are evenly distributed on the upper surface of the channel steel 3. The through slots 20 can increase the welding area between the channel steel 3 and the transformer body 2. During the welding process, the solder can fill into the inside of the through slots 20, which improves the stability of the connection between the channel steel 3 and the transformer body 2.

[0037] Working principle:

[0038] Basic installation and initial protection:

[0039] Before the transformer body 2 is installed at the factory, a pair of channel steels 3 are fixedly welded to its bottom. After the transformer body 2 is transported to the vicinity of the erection base 1, it is lifted by hoisting equipment. Expansion bolt sets 4 are installed on the channel steels 3, and then the transformer body 2 is installed on the surface of the erection base 1 using the expansion bolt sets 4. At this time, the rubber pads 5 set between the channel steels 3 and the erection base 1 can effectively prevent moisture from contacting the expansion bolt sets 4 through the gap between the two, avoid corrosion of the expansion bolt sets 4, maintain its original mechanical strength and thread fit accuracy for a long time, greatly reduce the possibility of the transformer body 2 tilting, shifting or falling due to loosening or even breakage, and improve the stability of the equipment after initial erection.

[0040] Casing installation and sealing protection:

[0041] The installer uses the sleeve 6 to connect the threaded groove 7 on the surface of the channel steel 3, so that the rubber ring 9 on the lower surface of the collar 8 fixedly fitted on the outer wall of the sleeve 6 is pressed against the surface of the channel steel 3. In this way, the sleeve 6, collar 8 and rubber ring 9 can seal and protect the exposed part of the expansion bolt assembly 4, preventing external impurities, moisture and other factors from corroding it, and further ensuring the stable performance of the expansion bolt assembly 4.

[0042] Nut anti-loosening mechanism:

[0043] Before the sleeve 6 is threaded into the threaded groove 7, the hexagonal slotted block 10 is first fitted onto the outside of the nut at the top of the expansion bolt assembly 4. After fitting, the sleeve 6 is pressed down to align with the threaded groove 7. Then, the sleeve 6 is rotated clockwise to thread it into the threaded groove 7, completing the installation of the sleeve 6. During this process, the compression spring 16 is continuously compressed and deformed, the vertical rod 12 slides deeper into the vertical cylinder 14, and the hexagonal slotted block 10 can move relative to the sleeve 6. Due to the fitting relationship between the hexagonal slotted block 10 and the nut at the top of the expansion bolt assembly 4, the hexagonal slotted block 10... The 0 will not rotate with the casing 6, thus causing the spring 13 to contract and deform. The rebound potential energy generated by the spring 13 can apply a clockwise rotational force to the hexagonal slot block 10 and the nut at the top of the expansion bolt group 4. During the subsequent use of the transformer body 2, if it is affected by equipment vibration, environmental vibration (such as subway train operation, mining machinery operation) or external impact, the nut at the top of the expansion bolt group 4 will not loosen in the reverse direction. It does not rely solely on the elastic washer, which is conducive to the stable installation of the special transformer.

[0044] Overall stability enhanced:

[0045] After the installation of the casing 6 is completed, the installer rotates the screw 18 inside the groove 17 clockwise so that the bottom end of the screw 18 abuts against the surface of the channel steel 3. This operation can improve the stability of the casing 6 and the channel steel 3 after the threaded connection, and make the part of the expansion bolt group 4 located inside the casing 6 stay in a sealed environment for a long time, thereby further improving the stability of the transformer body 2 after installation.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special transformer for stable installation, comprising: The system comprises an erection base (1) and a transformer body (2), wherein the transformer body (2) is mounted on top of the erection base (1). The transformer body (2) is characterized in that: a pair of channel steels (3) are fixedly connected to the lower surface of the transformer body (2), the channel steels (3) are connected to the erection base (1) via an expansion bolt group (4), a stabilizing unit is provided above the expansion bolt group (4), and a rubber pad (5) is fixedly connected to the lower surface of the channel steels (3). The rubber pad (5) is connected to the erection base. (1) The contact surfaces of the two types of steel are pressed together. The first stabilizing unit includes: a protective sleeve (6), which is located above the expansion bolt group (4). The protective sleeve (6) is threadedly connected to the channel steel (3) through the threaded groove (7). A collar (8) is fixedly sleeved on the outer wall of the protective sleeve (6). A rubber ring (9) is fixedly connected to the lower surface of the collar (8). The rubber ring (9) is pressed together with the contact surface of the channel steel (3). The second stabilizing unit is provided inside the upper part of the protective sleeve (6).

2. A special transformer with stable installation according to claim 1, characterized in that: The second stabilizing unit includes: a hexagonal slotted block (10), which is fitted onto the outside of the fastening nut at the top of the expansion bolt assembly (4). A circular groove (11) is provided at the center of the upper surface of the hexagonal slotted block (10). A spring (13) is fixed to the inner wall of the circular groove (11). A vertical rod (12) is fixed to the inner ring of the spring (13). A vertical cylinder (14) is fitted onto the outer wall of the vertical rod (12). The vertical cylinder (14) and the protective cylinder... (6) The contact surfaces are fixedly connected. A pair of slide bars (15) are fixedly connected to the outer wall of the vertical rod (12). The slide bars (15) are connected to the vertical cylinder (14) through sliding limit connection. A compression spring (16) is fitted on the outer side of the vertical cylinder (14). The bottom end of the compression spring (16) is fixedly connected to the hexagonal groove block (10). A ring (22) is fixedly connected to the top end of the compression spring (16). The ring (22) is rotatably connected to the protective cylinder (6) through ball bearing.

3. A special transformer with stable installation according to claim 1, characterized in that: An auxiliary unit is provided above the collar (8). The auxiliary unit includes a plurality of grooves (17). The plurality of grooves (17) are evenly opened on the upper surface of the collar (8). A screw (18) is provided inside the groove (17). The screw (18) is threadedly connected to the collar (8). The screw (18) passes through the collar (8) and abuts against the contact surface of the channel steel (3).

4. A special transformer with stable installation according to claim 3, characterized in that: A plug (19) is engaged above the inside of the groove (17).

5. A special transformer with stable installation according to claim 3, characterized in that: The screw (18) is abutted against the channel steel (3) by a grooved ring (21), which is formed on the surface of the channel steel (3).

6. A special transformer with stable installation according to claim 1, characterized in that: The upper surface of the aforementioned channel steel (3) is provided with multiple through slots (20).

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