Shock-resistant base of variable-frequency dry-type transformer

Abstract

The utility model discloses an anti-seismic base of a variable-frequency dry-type transformer, and relates to the technical field of transformers. The dry-type transformer comprises a dry-type transformer body and a base plate, the dry-type transformer body is assembled on the upper surface of the base plate, four evenly-distributed supporting seats are detachably installed on the lower surface of the base plate, anti-seismic assemblies are arranged between the lower surface of the base plate and the supporting seats, and disassembling and assembling mechanisms are arranged between the supporting seats and the anti-seismic assemblies. The anti-seismic assembly comprises a plurality of spring shock absorbers, four grooves which are evenly distributed are formed in the lower surface of the base plate, and sliding grooves are formed in the top walls of the four grooves; according to the dry-type transformer, the anti-seismic assembly is arranged between the base plate and the supporting seat, and the influence of horizontal vibration force of the supporting seat on the base plate and the dry-type transformer body is counteracted through extension or contraction of the contraction ends of the two spring shock absorbers, so that horizontal vibration of the base plate and the dry-type transformer body is avoided; and the service life of the dry-type transformer main body is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an earthquake-resistant base for a variable-frequency dry-type transformer. Background Technique

[0002] A dry-type transformer is a transformer device that converts voltage levels. The dry-type transformer does not require oil for cooling, but instead uses insulating materials such as resin to isolate current and prevent electric arcs. This type of transformer is widely used in power distribution projects;

[0003] The dry-type transformer has the following characteristics: 1. Good insulation performance. The dry-type transformer uses excellent insulating materials and process technologies, which can effectively prevent short circuits and do not generate any heat; 2. High efficiency. The dry-type transformer has a very high efficiency during use and can provide more electrical energy;

[0004] However, there are still some defects in the variable-frequency dry-type transformers in the prior art:

[0005] After the variable-frequency dry-type transformer in the prior art is installed on the equipment platform through the support seats at the bottom, if horizontal seismic forces occur on the support seats, the variable-frequency dry-type transformer will follow the vibration, and the long-term horizontal vibration affects the service life of the variable-frequency dry-type transformer. Content of the Utility Model

[0006] In order to solve the problem that the horizontal seismic force generated by the support seat affects the service life of the variable-frequency dry-type transformer; the purpose of the utility model is to provide an earthquake-resistant base for a variable-frequency dry-type transformer.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme: an earthquake-resistant base for a variable-frequency dry-type transformer, including a dry-type transformer main body and a base plate. The dry-type transformer main body is assembled on the upper surface of the base plate. Four uniformly distributed support seats are detachably installed on the lower surface of the base plate. An earthquake-resistant component is arranged between the lower surface of the base plate and the support seats, and a disassembly and assembly mechanism is arranged between the support seats and the earthquake-resistant component;

[0008] The earthquake-resistant component includes a plurality of spring shock absorbers. Four uniformly distributed grooves are opened on the lower surface of the base plate. Sliding grooves are opened on the top walls of the four grooves. Sliders are slidably installed in the middle of the four sliding grooves. The fixed ends of two adjacent spring shock absorbers are fixedly installed at both ends of a sliding groove. The telescopic ends of two adjacent spring shock absorbers are fixedly installed on both sides of a slider. The lower surfaces of the four sliders are fixedly connected with connecting rods, and one of the support seats is detachably installed at one end of a connecting rod.

[0009] Preferably, the disassembly and assembly mechanism includes four pushing plates. Activity slots are provided inside all four support seats. One of the pushing plates is in movable contact with the inner wall of an activity slot. Connection holes are provided on the upper end surfaces of all four support seats. One end of one of the connecting rods is movably inserted into the inner wall of a connection hole. Limit rods are fixedly installed on one side of all four pushing plates. Limit holes are provided at one end of all four connecting rods. One end of one of the limit rods is movably inserted into the inner wall of a limit hole.

[0010] Preferably, two guiding slots are provided on the side walls of all four activity slots. A guiding block is slidably installed at one end of the guiding slot. The opposite sides of two adjacent guiding blocks are fixedly connected to a pushing plate.

[0011] Preferably, two hinge seats are fixedly installed on the inner walls of all four activity slots and on the other side of all four pushing plates. Spring rods are hinge - installed between two adjacent hinge seats.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by providing a seismic - resistant component between the base plate and the support seat, through the extension or contraction of the contraction ends of the two spring shock absorbers, the horizontal seismic force brought by the support seat is offset, which affects the base plate and the dry - type transformer body, thereby avoiding horizontal vibration of the base plate and the dry - type transformer body, and effectively improving the service life of the dry - type transformer body.

[0014] 2. In the present utility model, by using the limit rod in the disassembly and assembly mechanism to limit or release the limit of the connecting rod inserted into the connection hole, the support seat is fixed at the end of the connecting rod or separated from the end of the connecting rod, so that the replacement of the support seat can be realized, which conveniently realizes the replacement of the support seat, and effectively improves the convenience of replacing the support seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of an earthquake - resistant base for a variable - frequency dry - type transformer of the present utility model.

[0017] Figure 2 It is a schematic diagram of the connection structure between the support seat and the base plate of the present utility model.

[0018] Figure 3 This is a schematic cross-sectional view of the base plate of the present utility model.

[0019] Figure 4 For the present utility model Figure 3 The enlarged schematic view of part A.

[0020] Figure 5 This is a schematic cross-sectional view of the support base of the present utility model.

[0021] Figure 6 For the present utility model Figure 5 The enlarged schematic view of part B.

[0022] Figure 7 This is a schematic separation view of the limit rod and the connecting rod of the present utility model.

[0023] In the figure: 1, the main body of the dry-type transformer; 2, the base plate; 3, the support base; 4, the strengthening base; 5, the seismic component; 51, the spring shock absorber; 52, the groove; 53, the sliding groove; 54, the slider; 55, the connecting rod; 6, the disassembly and assembly mechanism; 61, the pushing plate; 62, the movable groove; 63, the connecting hole; 631, the limit rod; 64, the limit hole; 65, the guiding groove; 66, the guiding block; 67, the hinge seat; 68, the spring rod; 69, the pull rod; 7, the U-shaped pull handle. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment: As Figure 1-7 shown, the present utility model provides a seismic base for a variable-frequency dry-type transformer, including the main body 1 of the dry-type transformer and the base plate 2. The main body 1 of the dry-type transformer is assembled on the upper surface of the base plate 2. Four uniformly distributed support bases 3 are detachably installed on the lower surface of the base plate 2. A seismic component 5 is provided between the lower surface of the base plate 2 and the support base 3. A disassembly and assembly mechanism 6 is provided between the support base 3 and the seismic component 5. By providing the seismic component 5, the seismic component 5 can resist the seismic force in the horizontal direction, avoiding the situation that the main body 1 of the dry-type transformer vibrates after the support base 3 is installed and fixed on the platform, and improving the service life of the main body 1 of the dry-type transformer. By providing the disassembly and assembly mechanism 6, the disassembly and assembly mechanism 6 facilitates the installation of the support base 3 on the lower surface of the base plate 2 or the removal from the lower surface of the base plate 2;

[0026] The seismic component 5 includes a number of spring shock absorbers 51. Four grooves 52 are evenly distributed on the lower surface of the base plate 2. Slide grooves 53 are provided on the top walls of the four grooves 52. Sliders 54 are slidably installed in the middle of the four slide grooves 53. The fixed ends of two adjacent spring shock absorbers 51 are fixedly installed at both ends of a slide groove 53. The telescopic ends of two adjacent spring shock absorbers 51 are fixedly installed on both sides of a slider 54. Connecting rods 55 are fixedly connected to the lower surfaces of the four sliders 54. One of the support seats 3 is detachably installed at one end of a connecting rod 55. By providing the spring shock absorbers 51, grooves 52, slide grooves 53, sliders 54 and connecting rods 55, when the support seat 3 is subjected to a horizontal seismic force, the support seat 3 can squeeze or stretch two spring shock absorbers 51 in a slide groove 53 through the connecting rod 55 and the slider 54. The telescopic ends of the two spring shock absorbers 51 extend or contract. The two spring shock absorbers 51 can make the slider 54 slide horizontally left and right in the slide groove 53, thus avoiding horizontal vibrations of the base plate 2 and the dry-type transformer body 1.

[0027] Reinforcing seats 4 are fixedly installed on the lower end faces of the four support seats 3. By providing the reinforcing seats 4, the reinforcing seats 4 can improve the supporting force of the support seats 3.

[0028] The disassembly and assembly mechanism 6 includes four push plates 61. Activity grooves 62 are provided inside the four support seats 3. One of the push plates 61 is in movable contact with the inner wall of an activity groove 62. Connecting holes 63 are provided on the upper end faces of the four support seats 3. One end of a connecting rod 55 is movably inserted into the inner wall of a connecting hole 63. Limiting rods 631 are fixedly installed on one side of the four push plates 61. Limiting holes 64 are provided at one ends of the four connecting rods 55. One end of a limiting rod 631 is movably inserted into the inner wall of a limiting hole 64. By providing the push plates 61, connecting holes 63, limiting rods 631 and limiting holes 64, after the connecting rod 55 is vertically inserted into the inside of the connecting hole 63, the connection between the base plate 2 and the support seat 3 can be realized. After the limiting rod 631 is horizontally inserted into the inside of the limiting hole 64, the connecting rod 55 inserted into the connecting hole 63 can be limited, so that the connecting rod 55 is fixed in the connecting hole 63.

[0029] Two guide grooves 65 are provided on the side walls of the four activity grooves 62. Guide blocks 66 are slidably installed at one ends of the guide grooves 65. The opposite sides of two adjacent guide blocks 66 are fixedly connected to a push plate 61. By providing the guide grooves 65 and guide blocks 66, the guide blocks 65 can be guided horizontally along the inner walls of the guide grooves 66, so that the push plate 61 moves in the horizontal direction.

[0030] On the inner walls of the four movable slots 62 and on the other sides of the four push plates 61, two hinge seats 67 are fixedly installed. Between adjacent two hinge seats 67, a spring rod 68 is hingedly installed. By providing the hinge seats 67 and the spring rod 68, when the push plate 61 moves horizontally, the push plate 61 causes the piston end of the spring rod 68 to extend or contract, and its two ends can rotate around the rotating shaft on the hinge seat 67. The extended state of the piston end of the spring rod 68 causes the push plate 61 and the limiting rod 631 to always move horizontally toward one side of the limiting hole 64.

[0031] On one side of each of the four support seats 3, a pull rod 69 is movably inserted. One end of one pull rod 69 is fixedly connected to the other side of one push plate 61. By providing the pull rod 69, when the pull rod 69 moves horizontally away from the support seat 3, the pull rod 69 can cause the limiting rod 631 to move horizontally away from the limiting hole 64 through the push plate 61.

[0032] At the other ends of the four pull rods 69, U-shaped pull handles 7 are fixedly installed. By providing the U-shaped pull handles 7, it is convenient for the operator to horizontally pull the pull rod 69.

[0033] Working principle: By providing the spring shock absorbers 51, the grooves 52, the chutes 53, the sliders 54 and the connecting rods 55 on the lower surface of the base plate 2, when the support seat 3 receives a horizontal shock force, the support seat 3 causes the slider 54 to slide horizontally left and right in the chute 53 through the connecting rod 55. During the horizontal left and right sliding process of the slider 54, the slider 54 squeezes or stretches the two spring shock absorbers 51 in one chute 53, and the telescopic ends of the two spring shock absorbers 51 extend or contract, offsetting the influence of the horizontal shock force brought by the support seat 3 on the base plate 2 and the dry-type transformer body 1, thereby avoiding the horizontal vibration of the base plate 2 and the dry-type transformer body 1, and effectively improving the service life of the dry-type transformer body 1;

[0034] When it is necessary to replace the support seat 3, the operator pulls the four U-shaped pull handles 7 respectively. The four U-shaped pull handles 7 cause the four limiting rods 631 to move horizontally through the four pull rods 69 and the four push plates 61. At this time, the two ends of the spring rod 68 rotate, and the piston end contracts, causing the four limiting rods 631 to completely disengage from the corresponding limiting holes 64. Then, the four support seats 3 are pulled downward respectively, causing the four connecting holes 63 to disengage from the corresponding connecting rods 55. Then, the connecting holes 63 on the replaced support seat 3 are vertically inserted into the connecting rods 55, and the thrust of the extended piston end of the spring rod 68 causes the limiting rod 631 to move horizontally in the reverse direction and insert into the limiting hole 64, thus conveniently realizing the replacement of the support seat 3, and effectively improving the convenience of replacing the support seat 3.

[0035] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. An earthquake-resistant base for a variable-frequency dry-type transformer, comprising a dry-type transformer main body (1) and a base plate (2), the dry-type transformer main body (1) being assembled on the upper surface of the base plate (2), characterized in that: Four support seats (3) evenly distributed are detachably installed on the lower surface of the base plate (2). An earthquake-resistant component (5) is provided between the lower surface of the base plate (2) and the support seats (3), and a disassembly and assembly mechanism (6) is provided between the support seats (3) and the earthquake-resistant component (5). The earthquake-resistant component (5) includes a plurality of spring shock absorbers (51). Four grooves (52) evenly distributed are formed in the lower surface of the base plate (2). Slide grooves (53) are formed in the top walls of the four grooves (52). Sliders (54) are slidably installed in the middle of the four slide grooves (53). The fixed ends of two adjacent spring shock absorbers (51) are fixedly installed at both ends of a slide groove (53), and the telescopic ends of two adjacent spring shock absorbers (51) are fixedly installed on both sides of a slider (54). Connecting rods (55) are fixedly connected to the lower surfaces of the four sliders (54). One of the support seats (3) is detachably installed at one end of a connecting rod (55).

2. The seismic base of a variable-frequency dry-type transformer according to claim 1, characterized in that, Reinforcing seats (4) are fixedly installed on the lower end surfaces of the four support seats (3).

3. The seismic base of a variable-frequency dry-type transformer according to claim 1, characterized in that, The disassembly and assembly mechanism (6) includes four push plates (61). Activity grooves (62) are formed in the interiors of the four support seats (3). One of the push plates (61) is in movable contact with the inner wall of an activity groove (62). Connecting holes (63) are formed in the upper end surfaces of the four support seats (3). One end of a connecting rod (55) is movably inserted into the inner wall of a connecting hole (63). Limit rods (631) are fixedly installed on one sides of the four push plates (61). Limit holes (64) are formed in one ends of the four connecting rods (55). One end of a limit rod (631) is movably inserted into the inner wall of a limit hole (64).

4. The seismic base of a variable-frequency dry-type transformer according to claim 3, characterized in that, Two guide grooves (65) are formed in the side walls of the four activity grooves (62). Guide blocks (66) are slidably installed at one ends of the guide grooves (65). The opposite sides of two adjacent guide blocks (66) are fixedly connected to a push plate (61).

5. The seismic base of a variable-frequency dry-type transformer according to claim 3, characterized in that Two hinge seats (67) are fixedly installed on the inner walls of the four activity grooves (62) and on the other sides of the four push plates (61). Spring rods (68) are hinge-mounted between two adjacent hinge seats (67).

6. The seismic base of a variable-frequency dry-type transformer according to claim 3, characterized in that, Pull rods (69) are movably inserted into one sides of the four support seats (3). One end of a pull rod (69) is fixedly connected to the other side of a push plate (61).

7. The seismic base of a variable-frequency dry-type transformer according to claim 6, characterized in that, U-shaped pull handles (7) are fixedly installed at the other ends of the four pull rods (69).

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