A hanging bracket used in transformer processing

Abstract

The utility model belongs to transformer processing technical field especially relates to a gallows used in transformer processing, including the chassis and the gallows of fixed connection in the left and right sides of chassis, the top of chassis is provided with clamping device, the clamping device includes sliding mechanism and buffer mechanism, the front of top of chassis is connected with baffle, sliding mechanism includes clamping plate, slide rod, sliding sleeve, locking bolt and bolt hole. This gallows used in transformer processing, when processing the transformer, first place the transformer on the top of clamping plate, push clamping plate and drive sliding sleeve to slide on the surface of slide rod, when the transformer contacts baffle, continue to push clamping plate and make the transformer extrude air bag, then use locking bolt to pass through through -hole and be connected in the inside of bolt hole with screw thread, fix the transformer, according to the size of transformer can replace the locking bolt of different length, be convenient for the adaptation of different transformer.

Description

Technical Field

[0001] This utility model relates to the field of transformer processing technology, specifically a hanger used in transformer processing. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer). During the manufacturing process, a lifting frame is used to hoist the transformer body into the oil tank for installation. Because the transformer body is relatively heavy, the entire lifting frame structure must have high strength.

[0003] Existing suspension systems suspend the internal structure of transformers using fixed rods and angle steel during installation. However, the position of the angle steel is not adjustable, making it inconvenient to lift transformers of different specifications. Furthermore, the lack of integrated cleaning devices during transformer installation makes it difficult to remove dust from the transformer surface, severely affecting the accuracy of subsequent winding installation, insulation treatment, and other processes. Utility Model Content

[0004] The purpose of this utility model is to provide a hanger used in transformer processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hanger used in transformer processing, comprising a base frame and hangers fixedly connected to the left and right sides of the base frame, wherein a clamping device is provided on the top of the base frame, and the clamping device includes a sliding mechanism and a buffer mechanism;

[0006] A baffle is connected to the front of the top of the base frame. The sliding mechanism includes a clamping plate, a sliding rod, a sliding sleeve, a locking bolt, and a bolt hole. The sliding rod is fixedly connected to the inside of the base frame. The sliding sleeve is slidably connected to the outer surface of the sliding rod. The clamping plate is fixedly connected to the top of the sliding sleeve. The locking bolt is threaded to the back of the clamping plate. The bolt hole is located on the back of the baffle.

[0007] Preferably, the buffer mechanism includes an airbag, a connecting airbag, an air outlet, and a vent. The airbag is fixedly connected to the front of the clamping plate, the connecting airbag is fixedly connected between the two airbags and communicates with them, the air outlet is fixedly connected to the center of the front of the connecting airbag, and the vent is opened on the side of the airbag.

[0008] The airbag and the connecting airbag are filled with air;

[0009] The vent allows for bidirectional gas flow, with gas flowing from inside the airbag to the external environment or from the external environment into the airbag based on the pressure difference.

[0010] The outlet end of the air nozzle is equipped with a one-way valve, which only allows gas to flow out from the inside of the air bladder in one direction, preventing external gas from flowing in.

[0011] Preferably, two slide rods are provided, and the back sides of the two slide rods are fixedly connected. The back side of the clamping plate has a through hole with the same diameter as the bolt hole, and the locking bolt is threaded to the inner wall of the bolt hole.

[0012] Preferably, the two ends of the connecting airbag are respectively connected to two airbags, and the air vents are symmetrically distributed on the left and right sides of the two airbags.

[0013] Preferably, a balance bar is fixedly connected inside the base frame, a connecting sleeve is slidably connected to the outer surface of the balance bar, a connecting platform is fixedly connected to the front of the connecting sleeve, and a cleaning brush is fixedly connected to the top of the connecting platform. The cleaning brush is used to clean dust and debris at the bottom of the transformer.

[0014] Preferably, the upper surface of the baffle has a through mounting hole, the mounting hole extends into the interior of the base frame, and the inner wall of the portion extending into the interior of the base frame has threads.

[0015] Preferably, a load-bearing plate is fixedly connected to the top of the base frame, and the front of the load-bearing plate is fixedly connected to the baffle. A suspension rod is provided at the top of the hanger, and a hook is fixedly connected to the top of the suspension rod. The suspension rod and the hanger are connected by the hook and the wire rope, and a mounting bolt is threaded inside the mounting hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The hanger used in the processing of this transformer is used to first place the transformer on top of the clamping plate when processing the transformer. Pushing the clamping plate causes the sliding sleeve to slide on the surface of the slide rod. When the transformer contacts the baffle, continue to push the clamping plate to make the transformer compress the air bladder. Then, use locking bolts to pass through the through hole and thread them into the bolt hole to fix the transformer. Locking bolts of different lengths can be replaced according to the size of the transformer to facilitate the adaptation of different transformers.

[0018] 2. The lifting frame used in the processing of this transformer, when the transformer squeezes the air bladder, some of the gas inside the air bladder is squeezed into the interior of the connecting air bladder. Then, the gas inside the air bladders on both sides enters the interior of the connecting air bladder. The gas can be quickly ejected from the air outlet, thereby blowing away the dust attached to the transformer surface. The air bladder and the connecting air bladder form a pneumatic linkage system. When the transformer squeezes the air bladder, mechanical energy is converted into gas pressure energy, which is directionally ejected through the air outlet controlled by the one-way valve to form a clean airflow, converting the clamping force during the lifting process into clean power. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the right side structure of the clamping device of this utility model;

[0021] Figure 3 This is a schematic diagram of the left side structure of the clamping device of this utility model;

[0022] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Base frame; 2. Hanger; 3. Wire rope; 4. Suspension rod; 5. Hook; 6. Load-bearing plate; 7. Baffle; 8. Mounting bolt; 9. Clamping plate; 901. Sliding rod; 902. Sliding sleeve; 903. Locking bolt; 904. Bolt hole; 905. Balance bar; 906. Connecting sliding sleeve; 907. Connecting platform; 908. Cleaning brush; 909. Airbag; 910. Connecting airbag; 911. Air outlet; 912. Vent. 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] Example 1: To address the problem in existing technology where the position of the angle steel in the hanger is not adjustable during transformer installation, making it inconvenient to lift transformers of different specifications, please refer to... Figures 1-4 This utility model provides a technical solution:

[0026] A hanger used in transformer processing includes a base frame 1 and hangers 2 fixedly connected to the left and right sides of the base frame 1. A load-bearing plate 6 is fixedly connected to the top of the base frame 1, and a baffle 7 is connected to the front of the top of the base frame 1. The front of the load-bearing plate 6 is fixedly connected to the baffle 7. A suspension rod 4 is provided on the top of the hanger 2, and a hook 5 is fixedly connected to the top of the suspension rod 4. The suspension rod 4 and the hanger 2 are connected by the hook 5 and a wire rope 3. A through mounting hole is opened on the upper surface of the baffle 7, and a mounting bolt 8 is threaded inside the mounting hole. The mounting hole extends into the interior of the base frame 1, and the inner wall of the part extending into the interior of the base frame 1 is threaded. Before processing the transformer, the baffle 7 is placed on the front of the top of the base frame 1, and then the mounting bolt 8 is threaded into the interior of the mounting hole to connect and fix the baffle 7 and the base frame 1. A clamping device is provided on the top of the base frame 1, and the clamping device includes a sliding mechanism.

[0027] The sliding mechanism includes a clamping plate 9, a sliding rod 901, a sliding sleeve 902, a locking bolt 903, and a bolt hole 904. The sliding rod 901 is fixedly connected to the inside of the base frame 1, the sliding sleeve 902 is slidably connected to the outer surface of the sliding rod 901, the clamping plate 9 is fixedly connected to the top of the sliding sleeve 902, the locking bolt 903 is threadedly connected to the back of the clamping plate 9, and the bolt hole 904 is located on the back of the baffle 7. Two sliding rods 901 are provided, and their backs are fixedly connected. The back of the clamping plate 9 has a through hole with the same diameter as the bolt hole 904, and the locking bolt 903 is threadedly connected to the inner wall of the bolt hole 904. The locking bolt 903 can be selected according to the size of the transformer, using either a long bolt or a short bolt with the same diameter and pitch but different lengths. For transformers with a larger width, a longer locking bolt is selected; for transformers with a smaller width, a shorter bolt is selected, ensuring that the bolt can be effectively fixed without affecting operation.

[0028] A balance bar 905 is fixedly connected internally to the base frame 1. A connecting sleeve 906 is slidably connected to the outer surface of the balance bar 905. A connecting platform 907 is fixedly connected to the front of the connecting sleeve 906. The left and right sides of the connecting platform 907 only contact the surface of the bearing plate 6 but are not connected. A cleaning brush 908 is fixedly connected to the top of the connecting platform 907. The bristles of the cleaning brush 908 are made of soft nylon (Shore hardness ≤50A), specifically nylon 610 bristles with a diameter of 0.3-0.5mm. After anti-static treatment, it can effectively adsorb dust and avoid static electricity damage to the transformer insulation layer.

[0029] The cleaning brush 908 is connected to the connecting platform 907 using an elastic rubber pad. When the cleaning brush 908 contacts the bottom surface of the transformer, the elastic element automatically adjusts the contact pressure to ensure that the bristles adhere to the surface with moderate force, ensuring effective dust removal while avoiding excessive pressure that could cause scratches. The edges of the cleaning brush 908 bristles and the bottom edge of the connecting platform 907 are rounded with a radius ≥2mm to eliminate sharp edges and prevent scratches caused by collisions with the transformer edges during movement.

[0030] After the transformer is secured, the sliding sleeve 906 is manually pushed to slide on the surface of the balance bar 905. During this movement, the sliding sleeve 906 moves the connecting platform 907, which in turn moves the cleaning brush 908 to clean the bottom of the transformer, removing attached dust and dust blown down by the air nozzle 911. After the transformer is clamped, the sliding sleeve 906 can be manually pushed to slide on the surface of the balance bar 905. The sliding sleeve 906 can slide freely on the balance bar 905, allowing the cleaning brush 908 to perform a wide-area cleaning of the transformer's bottom, covering most of the area and ensuring thorough cleaning. The bristles of the cleaning brush 908 are made of a material with good elasticity and wear resistance, effectively removing dust and impurities without damaging the bottom surface of the transformer.

[0031] Example 2:

[0032] In practical use, to prevent damage to the transformer surface during clamping, this application provides a buffer mechanism on the front of the clamping plate 9. The buffer mechanism includes an air bladder 909, a connecting air bladder 910, an air outlet 911, and a vent 912. The air bladder 909 is fixedly connected to the front of the clamping plate 9, and the connecting air bladder 910 is fixedly connected between the two air bladders 909 and communicates with them. The air outlet 911 is fixedly connected to the center of the front of the connecting air bladder 910, and the vent 912 is located on the side of the air bladder 909.

[0033] The two ends of the connecting airbag 910 are connected to two airbags 909 respectively. Vents 912 are symmetrically distributed on the left and right sides of the two airbags 909. Vents 912 have bidirectional gas flow function; gas flows from inside the airbag 909 to the external environment or from the external environment into the airbag 909 according to the pressure difference. The outlet end of the air nozzle 911 is equipped with a one-way valve, which only allows gas to flow from inside the connecting airbag 910 to the outside, preventing external gas from flowing in.

[0034] The one-way valve consists of a valve seat, a resilient valve disc, and a return spring. The valve seat is injection molded from POM engineering plastic, with an internal 5mm diameter flow hole and smooth walls to reduce gas flow resistance. The resilient valve disc is made of 0.3mm thick silicone rubber, with an 8mm diameter. Its edges are fixed to the valve seat via heat pressing, while its central area allows for elastic deformation. The return spring is a 0.5mm diameter stainless steel helical spring with a free length of 10mm. One end rests against the inner wall of the valve seat, and the other end abuts against the back of the valve disc, providing initial sealing pressure.

[0035] The one-way valve automatically opens and closes by the pressure difference between the inside and outside of the connecting air bag 910. When the internal pressure of the connecting air bag 910 is ≥0.5kPa, the gas pressure overcomes the spring force and the weight of the valve plate, pushing the valve plate to deform upward, opening the flow hole, and the gas is ejected from the outlet 911. When the internal pressure is <0.5kPa, the spring force pushes the valve plate to reset, tightly fitting the valve seat sealing surface, preventing the backflow of external gas.

[0036] When the transformer squeezes the air bladder 909, some of the gas inside the air bladder 909 is squeezed into the connecting air bladder 910. Then, the gas inside both air bladders 909 enters the connecting air bladder 910. The air pressure inside the connecting air bladder 910 increases instantaneously, and the gas can be quickly ejected from the vent 911, thereby blowing away the dust adhering to the transformer surface. Some gas will be discharged from the vent 912. After the transformer leaves the air bladder 909, external gas enters the connecting air bladder 910 and the air bladder 909 from the vent 912, thereby maintaining air pressure balance.

[0037] The 911 air outlet adopts a 45° diffusion nozzle design, with a measured lateral blowing angle of up to 60°. It can cover an area with a width of 346mm at a distance of 200mm from the air outlet. The airflow speed is maintained at ≥3m / s within a distance of 150mm, and it can cover a range of 300mm in height on the side of the transformer.

[0038] According to fluid mechanics principles, dust can be effectively removed when the drag force (Fd) exerted by the airflow on dust particles is greater than the adhesion force (Fa) between the particles and the surface. The drag force formula is: Fd = 0.5 × Cd × ρ × A × v 2 (Where Cd is the drag coefficient, ρ is the air density, A is the frontal area of ​​the particle, and v is the airflow velocity);

[0039] In this scheme, when v = 5.2 m / s, the Fd for 50 μm metal debris is 1.2 × 10⁻⁶. -5 N is greater than its adhesion force to the steel plate surface (approximately 8 × 10⁻⁶). -6 N).

[0040] According to GB / T19844-2005 "Requirements for Cleanliness of Insulation Materials for Transformers", the diameter of dust particles after cleaning of critical parts should be ≤50μm. This solution achieves a 94.8% removal rate of 50μm particles, which meets the standard requirements.

[0041] Working principle: When processing the transformer, the transformer is first placed on top of the clamping plate 9. Then, the clamping plate 9 is pushed to drive the sliding sleeve 902 to slide on the surface of the slide rod 901. The clamping plate 9 pushes the transformer closer to the baffle 7. When the transformer contacts the baffle 7, the clamping plate 9 is pushed to make the transformer compress the air bag 909. Then, the locking bolt 903 is passed through the through hole and threaded into the bolt hole 904 to fix the transformer. Then, the base frame 1, the hanger 2 and the transformer are lifted as a whole by the hook 5 and the suspension rod 4 and the wire rope 3 for processing.

[0042] When the clamping plate 9 is subjected to an impact force towards the baffle 7, the clamping plate 9 compresses the airbag 909. Part of the gas inside the airbag 909 is slowly discharged to the external environment through the vent 912, while the other part of the gas is squeezed into the connecting airbag 910 and can be discharged outward through the one-way valve of the outlet 911. When the impact force disappears or decreases, the airbag 909 rebounds under its own elasticity or the action of external air pressure. At this time, external gas can re-enter the airbag 909 through the vent 912. At the same time, due to the one-way valve of the outlet 911, external gas cannot enter through this path, thus helping the airbag 909 to rebound. Through the process of gas compression, discharge, and intake, the impact energy is absorbed and dissipated, playing a buffering role.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A hanger for transformer processing, comprising a base frame (1) and hangers (2) fixedly connected to the left and right sides of the base frame (1), characterized in that: The top of the base frame (1) is provided with a clamping device, which includes a sliding mechanism and a buffer mechanism; The top front of the base frame (1) is connected to a baffle (7). The sliding mechanism includes a clamping plate (9), a slide rod (901), a sliding sleeve (902), a locking bolt (903), and a bolt hole (904). The slide rod (901) is fixedly connected to the inside of the base frame (1). The sliding sleeve (902) is slidably connected to the outer surface of the slide rod (901). The clamping plate (9) is fixedly connected to the top of the sliding sleeve (902). The locking bolt (903) is threadedly connected to the back of the clamping plate (9). The bolt hole (904) is opened on the back of the baffle (7).

2. The hanger used in transformer processing according to claim 1, characterized in that: The buffer mechanism includes an airbag (909), a connecting airbag (910), an air outlet (911), and a vent (912). The airbag (909) is fixedly connected to the front of the clamping plate (9). The connecting airbag (910) is fixedly connected between the two airbags (909) and communicates with them. The air outlet (911) is fixedly connected to the center of the front of the connecting airbag (910). The vent (912) is opened on the side of the airbag (909). The airbag (909) and the connecting airbag (910) are filled with air; The vent (912) allows bidirectional gas flow, with gas flowing from inside the airbag (909) to the external environment or from the external environment into the airbag (909) according to the pressure difference. The outlet end of the air nozzle (911) is equipped with a one-way valve, which only allows gas to flow out from the inside of the connecting airbag (910) in one direction, and prevents external gas from flowing in.

3. The hanger used in transformer processing according to claim 1, characterized in that: Two slide rods (901) are provided, and the back sides of the two slide rods (901) are fixedly connected. The back side of the clamping plate (9) is provided with a through hole with the same diameter as the bolt hole (904). The locking bolt (903) is threadedly connected to the inner wall of the bolt hole (904).

4. A hanger for transformer processing according to claim 2, characterized in that: The two ends of the connecting airbag (910) are connected to the two airbags (909) respectively, and the air vents (912) are symmetrically distributed on the left and right sides of the two airbags (909).

5. A hanger for transformer processing according to claim 1, characterized in that: The base frame (1) is also fixedly connected to a balance bar (905). A connecting sleeve (906) is slidably connected to the outer surface of the balance bar (905). A connecting platform (907) is fixedly connected to the front of the connecting sleeve (906). A cleaning brush (908) is fixedly connected to the top of the connecting platform (907). The cleaning brush (908) is used to clean the dust and debris at the bottom of the transformer.

6. A hanger for transformer processing according to claim 1, characterized in that: The upper surface of the baffle (7) is provided with a through mounting hole, which extends into the interior of the base frame (1) and the inner wall of the portion extending into the interior of the base frame (1) is provided with threads.

7. A hanger for transformer processing according to claim 1, characterized in that: The top of the base frame (1) is fixedly connected to a load-bearing plate (6), and the front of the load-bearing plate (6) is fixedly connected to a baffle (7). The top of the hanger (2) is provided with a suspension rod (4), and the top of the suspension rod (4) is fixedly connected with a hook (5). The suspension rod (4) and the hanger (2) are connected by a hook (5) and a wire rope (3). The mounting hole is threaded with a mounting bolt (8).

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