High-overload oil-immersed distribution transformer

Abstract

The utility model relates to the technical field of transformers, in particular to a high-overload oil-immersed distribution transformer which comprises a transformer body, two U-shaped mounting frames are fixed to the bottom of the transformer body, and a plurality of positioning holes are formed in the outer walls of the mounting frames. A mounting accessory is arranged below the transformer body; the transformer is directly hoisted, the two ends of the mounting frames on the two sides are inserted between the two adjacent positioning frames, the transformer can be limited to the mounting position under the positioning effect of the positioning frames, and then the movable seats on the two sides synchronously and relatively move by rotating the double-end lead screw; when the transformer is installed, the limiting bases on the two sides can be driven to be inserted into the openings of the installation frame, the positioning columns are inserted into the positioning holes, and under the action of the limiting bases and the positioning columns, the transformer can be rapidly and stably installed; according to the design, the installation convenience of the transformer is improved, the installation difficulty of the transformer is reduced, and the installation efficiency of the transformer is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely is a kind of high overload oil-immersed distribution transformer. BACKGROUND

[0002] Oil-immersed distribution transformer is a kind of equipment for changing alternating voltage, it utilizes electromagnetic induction principle, and through electromagnetic coupling between winding, it is converted into alternating current energy of another voltage grade of alternating voltage of one voltage grade.Oil-immersed distribution transformer is a kind of power equipment with special design, can operate for a period of time in the case where exceeding its rated load, without immediate damage or failure.

[0003] The utility model discloses an oil-immersed transformer, the oil-immersed transformer includes transformer body;The transformer body includes oil tank;The rear row on the support plate on the oil tank top surface is provided with a plurality of high-voltage bushings, and the front row is provided with a plurality of low-voltage bushings;The periphery of the oil tank is provided with corrugated radiator;The middle part of corrugated radiator on the front of oil tank is provided with a nameplate;The left and right sides of the support plate on the oil tank top surface are each provided with a hanging plate;The inside of one side of the lower end of the oil tank is provided with transformer oil;The support plate on the oil tank top surface is provided with oil level gauge in the position corresponding to transformer oil.The utility model discloses an oil-immersed transformer, meets the demand of transmission and distribution voltage, increases the heat dissipation area of radiator, effectively improves the heat dissipation effect of transformer, and the setting of hanging plate makes it convenient to carry, and the whole is convenient to disassemble, and it is convenient for staff to observe the condition of sealing element more quickly, and the connecting portion structure is simple, effectively prevents transformer oil from being oxidized, ensures the service performance of transformer oil, and prolongs the service life of transformer.

[0004] Although the oil-immersed transformer improves the heat dissipation effect of transformer, the device still has the following problems in actual use: when installing the transformer, the transformer needs to be hoisted to the fixed platform by hoisting equipment, and the base is installed and fixed with the fixed platform by bolts, and the installation mode cannot be installed in place at one time in the installation process, which increases the installation difficulty of the transformer, and in view of this, we propose a kind of high overload oil-immersed distribution transformer. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned difficulties, the utility model provides a kind of high overload oil-immersed distribution transformer.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A kind of high overload oil-immersed distribution transformer, including transformer body, the bottom of transformer body is fixed with two U-shaped mounting bracket, multiple positioning holes are set in the outer wall of mounting bracket;

[0008] The lower side of transformer body is equipped with installation accessory, and the installation accessory includes two symmetrical installation beams, the top of installation beam is fixed with two positioning racks on the left and right sides, the gap between adjacent two positioning racks is fixed with baffle, the two ends of mounting bracket are inserted into the gap between adjacent two positioning racks, and the end of mounting bracket abuts against baffle;Gap between the two installation beams is provided with a pull rod at the left and right sides;Double-head screw rod is rotatably installed between the middle of the two installation beams;

[0009] The two ends of double-head screw rod are threadedly connected with connecting seat, the left and right sides of connecting seat are provided with traction plate, the two ends of traction plate are hingedly connected with hinge seat, the hinge seat in the middle is fixed to the outer wall of connecting seat, the hinge seat on the two sides is fixed with movable seat between them, the top of movable seat is fixed with support, two supports are fixed with limit seat between them, and the two opposite end faces of two limit seats are fixed with multiple positioning columns;Limit seat is inserted into the opening of mounting bracket, and positioning column is inserted and matched with corresponding positioning hole.

[0010] Further, the cross-sectional shape of the positioning rack is L-shaped, and the opening of the positioning rack is tightly welded with a reinforcing block.

[0011] Further, the two opposite end faces of the two installation beams are connected with guide rails at the left and right ends by bolts, and the two ends of the movable seat are provided with guide grooves, which are slidably connected with corresponding guide rails.

[0012] Further, two mounting holes are formed at the two ends of the installation beam, and the cross-sectional shape of the mounting hole is circular.

[0013] Further, the front end of the double-head screw rod passes through the installation beam and is rotatably connected with the installation beam, and the front end of the installation beam is coaxially connected with a hand wheel.

[0014] Further, the movable seat and the support are integrally formed, and the movable seat is perpendicular to the support.

[0015] Further, the end of the double-head screw rod is rotatably connected with the installation beam through a bearing, and the thread groove of the two ends of the double-head screw rod has opposite thread winding directions.

[0016] Further, the gap size between adjacent two positioning racks is matched with the size of the mounting bracket.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] Through the installation accessory and the installation frame, when installing the transformer, the transformer is directly hoisted, the two ends of the installation frame on two sides are inserted into the positions between the two adjacent positioning frames, under the positioning of the positioning frames, the transformer can be limited in the installation position, then the two movable seats on two sides are synchronously moved relative to each other by rotating the double-end screw rod, the limiting seat on two sides can be driven to insert into the opening of the installation frame, and the positioning column is inserted into the positioning hole, under the action of the limiting seat and the positioning column, the transformer can be quickly and stably installed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is one of the overall structure schematic diagrams of the utility model;

[0020] Figure 2 It is the second overall structure schematic diagram of the utility model;

[0021] Figure 3 It is the structure schematic diagram of the transformer in the utility model;

[0022] Figure 4 It is the structure schematic diagram of the installation accessory in the utility model;

[0023] Figure 5 It is one of the partial structure schematic diagrams of the installation accessory in the utility model;

[0024] Figure 6 It is the second partial structure schematic diagram of the installation accessory in the utility model;

[0025] In the drawing:

[0026] 1, transformer body; 10, installation frame; 100, positioning hole;

[0027] 2, installation accessory; 20, installation beam; 200, installation hole; 201, positioning frame; 202, reinforcing block; 203, baffle; 204, guide rail; 21, pull rod; 22, double-end screw rod; 220, hand wheel; 23, connecting seat; 24, traction plate; 25, hinge seat; 26, movable seat; 260, guide groove; 27, support; 28, limiting seat; 280, positioning column. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] The embodiment provides a technical scheme:

[0030] Please refer to Figures 1-6 As shown in the figure, a high overload oil-immersed distribution transformer comprises a transformer body 1, the bottom of the transformer body 1 is fixed with two U-shaped mounting racks 10, a plurality of positioning holes 100 are formed in the outer wall of the mounting rack 10; a mounting accessory 2 is arranged below the transformer body 1, the mounting accessory 2 comprises two symmetrical mounting beams 20, two positioning racks 201 are fixed to the top of the mounting beam 20 on the left and right sides, a baffle 203 is fixed between the two adjacent positioning racks 201, the two ends of the mounting rack 10 are inserted into the position between the two adjacent positioning racks 201, and the end of the mounting rack 10 abuts against the baffle 203; a pull rod 21 is arranged between the two mounting beams 20 on the left and right sides; a double-head screw rod 22 is rotatably arranged between the two mounting beams 20 at the middle part; a connecting seat 23 is threadedly connected to the two ends of the double-head screw rod 22, a traction plate 24 is arranged on the left and right sides of the connecting seat 23, a hinge seat 25 is hinged to the two ends of the traction plate 24, the hinge seat 25 at the middle part is fixed to the outer wall of the connecting seat 23, a movable seat 26 is fixed between the two hinge seats 25 on the two sides, a support 27 is fixed to the top of the movable seat 26, a limiting seat 28 is fixed between the two supports 27, and a plurality of positioning columns 280 are fixed to the two opposite end faces of the two limiting seats 28; the limiting seat 28 is inserted into the opening of the mounting rack 10, and the positioning column 280 is inserted and matched with the corresponding positioning hole 100.

[0031] It can be understood that the mounting rack 10 in the embodiment is fixedly connected with the transformer body 1 through bolts, and the mounting rack 10 is a U-shaped steel, which is usually made by a cold bending process and has high strength and stability and good corrosion resistance. Using the U-shaped steel to install the transformer body 1 can not only meet the mechanical requirements of the installation of the transformer body 1, ensure the long-term stable operation of the transformer body 1 after installation, and reduce the safety hazards caused by material problems, but also be suitable for the installation of the transformer body 1 in outdoor or harsh environments.

[0032] In the embodiment, the cross section of the positioning rack 201 is L-shaped, and the opening of the positioning rack 201 is tightly welded with a reinforcing block 202. The positioning rack 201 is tightly welded with the mounting beam 20, the L-shaped design increases the overall stability of the positioning rack 201, and the reinforcing block 202 increases the structural strength of the positioning rack 201, thereby ensuring the limiting effect of the positioning rack 201 on the mounting rack 10.

[0033] In the embodiment, the two opposite end faces of the two mounting beams 20 are fixedly connected with guide rails 204 at the left and right ends by bolts, and the two ends of the movable seat 26 are provided with guide grooves 260 which are in sliding connection with the corresponding guide rails 204. The arrangement of the guide grooves 260 and the guide rails 204 increases the stability and smoothness of the horizontal movement of the movable seat 26.

[0034] In the embodiment, two mounting holes 200 are formed at the two ends of the mounting beam 20, and the cross-sectional shape of the mounting hole 200 is circular. The arrangement of the mounting hole 200 facilitates the threading of the bolt, thereby facilitating the mounting and fixing of the mounting beam 20 and the fixed platform by the bolt.

[0035] In the embodiment, the front end of the double-headed screw rod 22 passes through the mounting beam 20 and is rotationally connected with the mounting beam 20, and the front end of the mounting beam 20 is coaxially keyed connected with a hand wheel 220. The hand wheel 220 facilitates the rotation of the double-headed screw rod 22, and the design improves the convenience of operation.

[0036] In the embodiment, the movable seat 26 and the support 27 are of an integrated structure, and the movable seat 26 is perpendicular to the support 27. The integrated movable seat 26 and the support 27 have better connection strength, ensuring the connection stability of the movable seat 26 and the support 27 and the load-bearing effect of the movable seat 26 and the support 27 on the transformer body 1.

[0037] In the embodiment, the distal end of the double-headed screw rod 22 is rotationally connected with the mounting beam 20 through a bearing, and the thread groove at the two ends of the double-headed screw rod 22 has opposite thread winding directions. The arrangement of the bearing ensures the stability and smoothness of the rotation of the double-headed screw rod 22, and the opposite thread grooves enable the two movable seats 26 on the two sides to move synchronously relative to each other when the double-headed screw rod 22 rotates, thereby facilitating the disassembly and assembly of the mounting rack 10.

[0038] In the embodiment, the gap size between the two adjacent positioning racks 201 is adapted to the size of the mounting rack 10. This design ensures the installation stability of the mounting rack 10 between the two positioning racks 201, thereby ensuring the installation stability of the transformer body 1.

[0039] It should be noted that the two hinge seats 25 in the middle of the embodiment are fixedly connected with the connecting seat 23 by bolts, and the hinge seats 25 on the two sides are fixedly connected with the movable seat 26 by bolts. The bolt fixing mode has the advantage of firm connection, ensuring the connection stability and stability between the traction plate 24 and the connecting seat 23 and the movable seat 26, thereby ensuring the stable use of the transmission structure.

[0040] Before use, the user first places the mounting accessory 2 on the fixed platform, and then the user threads the bolts through the mounting holes 200 on the two sides and fixes them with the fixed platform, and the mounting accessory 2 is then fixed.

[0041] In use, the user first hoists the transformer body 1 to the upper side of the mounting accessory 2 by using the hoisting device, then the user operates the hoisting device and adjusts the position of the transformer body 1, and makes the two ends of the two mounting racks 10 respectively inserted into the two positioning racks 201, and the transformer body 1 is limited, then the user holds the hand wheel 220 and rotates, the hand wheel 220 drives the double-head screw rod 22 to rotate, since the threaded grooves at the two ends of the double-head screw rod 22 are in threaded connection with the connecting seats 23, with the rotation of the double-head screw rod 22, the two connecting seats 23 are synchronously moved to the two sides, the connecting seat 23 synchronously drives the traction plate 24 to move, the traction plate 24 synchronously drives the two movable seats 26 to move to the inside, and the movable seat 26 synchronously drives the support 27 and the limiting seat 28 to move close to the mounting rack 10, when the limiting seat 28 is inserted into the opening of the mounting rack 10 and the positioning column 280 is inserted into the positioning hole 100, the user stops rotating the hand wheel 220, at this time, the mounting rack 10 is stably connected with the limiting seat 28, and the transformer body 1 is mounted on the fixed platform.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high overload oil-immersed distribution transformer, characterized in that: The transformer body (1) is included. Two U-shaped mounting brackets (10) are fixed at the bottom of the transformer body (1). Multiple positioning holes (100) are provided on the outer wall of the mounting brackets (10). The transformer body (1) is provided with an installation accessory (2) below it. The installation accessory (2) includes two symmetrical installation beams (20). The top of the installation beams (20) is fixed with two positioning frames (201) on the left and right sides. A baffle (203) is fixed between two adjacent positioning frames (201). The two ends of the installation frame (10) are inserted between the two adjacent positioning frames (201), and the end of the installation frame (10) abuts against the baffle (203). A tie rod (21) is provided between the two installation beams (20) on the left and right sides. A double-headed screw rod (22) is rotatably installed between the two installation beams (20) in the middle. Both ends of the double-ended lead screw (22) are threaded with connecting seats (23). Both sides of the connecting seat (23) are provided with traction plates (24). Both ends of the traction plates (24) are hinged with hinge seats (25). The hinge seat (25) in the middle is fixed to the outer wall of the connecting seat (23). The movable seat (26) is fixed between the hinge seats (25) on both sides. The top of the movable seat (26) is fixed with a support (27). The limit seat (28) is fixed between the two supports (27). The two opposite end faces of the two limit seats (28) are fixed with multiple positioning pins (280). The limit seat (28) is inserted into the opening of the mounting bracket (10). The positioning pins (280) are inserted into the corresponding positioning holes (100).

2. The high overload oil-immersed distribution transformer according to claim 1, characterized in that: The positioning frame (201) has an L-shaped cross-section, and a reinforcing block (202) is tightly welded to the opening of the positioning frame (201).

3. The high overload oil-immersed distribution transformer according to claim 1, characterized in that: The two opposing end faces of the two mounting beams (20) are fixedly connected to guide rails (204) by bolts at the left and right ends. The two ends of the movable seat (26) are provided with guide grooves (260), and the guide grooves (260) are slidably connected to the corresponding guide rails (204).

4. The high overload oil-immersed distribution transformer according to claim 1, characterized in that: Two mounting holes (200) are provided at both ends of the mounting beam (20), and the cross-sectional shape of the mounting holes (200) is circular.

5. The high overload oil-immersed distribution transformer according to claim 1, characterized in that: The front end of the double-ended lead screw (22) passes through the mounting beam (20) and is rotatably connected to the mounting beam (20). The front end of the mounting beam (20) is coaxially keyed with a handwheel (220).

6. The high overload oil-immersed distribution transformer according to claim 1, characterized in that: The movable seat (26) and the support (27) are integrally formed structures, and the movable seat (26) and the support (27) are perpendicular to each other.

7. The high overload oil-immersed distribution transformer according to claim 1, characterized in that: The end of the double-ended lead screw (22) is rotatably connected to the mounting beam (20) via a bearing, and the threaded grooves at both ends of the double-ended lead screw (22) have opposite threading directions.

8. The high overload oil-immersed distribution transformer according to claim 1, characterized in that: The gap between two adjacent positioning frames (201) is adapted to the size of the mounting frame (10).

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