A mounting and fixing structure for an oil-immersed transformer

Abstract

The present invention relates to the technical field of transformer fixing, and in particular to an installation and fixing structure for an oil-immersed transformer, comprising symmetrically distributed brackets, wherein the brackets are all fixedly connected with symmetrically distributed arc rings, the arc rings on two of the brackets constitute two complete fixing rings, a plurality of circumferentially distributed fixing blocks are arranged on the inner sides of the fixing rings, the fixing blocks are connected with a driving mechanism, the driving mechanism is used to drive the plurality of fixing blocks to move synchronously, so that the fixing blocks and the electric poles are closely fitted, the side walls of the brackets are all fixed with symmetrically distributed supporting blocks, the supporting blocks are connected with a buffer mechanism, and the buffer mechanism is used to buffer the transformer; the present invention fixes the fixing ring on the outside of the electric pole by means of a plurality of circumferentially distributed fixing blocks, can be applied to electric poles of different diameters, effectively improves the application range of the structure, and can also buffer the transformer, and can effectively reduce the instantaneous pressure of the transformer on the bracket.

Description

Technical Field

[0001] The invention relates to the technical field of transformer fixing, in particular to an installation and fixing structure of an oil-immersed transformer. Background Art

[0002] Distribution transformer is one of the important equipment in the power supply and distribution system of civil buildings. According to the different insulating media, it is divided into oil-immersed transformer and dry-type transformer. Since the transformer oil of oil-immersed transformer has the characteristics of excellent performance and low price, the vast majority of distribution transformers are oil-immersed transformers.

[0003] In the prior art, most oil-immersed transformers are installed between two electric poles. Before installation, a bracket is fixed between the two electric poles by an arc frame, and then the oil-immersed transformer is hoisted on the surface of the bracket, and finally the oil-immersed transformer is fixed to the surface of the bracket by bolts.

[0004] However, this installation method has certain defects. The arc frame can only be applied to electric poles with the same diameter, and its application range is relatively low. In addition, when hoisting the oil-immersed transformer, the oil-immersed transformer will exert a large pressure on the bracket at the moment of contact with the bracket, causing the arc frame to loosen from the electric pole, and the stability is not strong. Summary of the invention

[0005] The object of the present invention is to provide an installation and fixing structure for an oil-immersed transformer to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mounting and fixing structure for an oil-immersed transformer comprises symmetrically distributed brackets, each of which is fixedly connected with symmetrically distributed arc rings, the arc rings on two of the brackets forming two complete fixing rings, a plurality of circumferentially distributed fixing blocks are arranged on the inner side of the fixing rings, the fixing blocks are connected with a driving mechanism, the driving mechanism is used to drive the plurality of fixing blocks to move synchronously, so that the fixing blocks are closely fitted with electric poles, symmetrically distributed supporting blocks are fixed on the side walls of the brackets, the supporting blocks are connected with a buffer mechanism, and the buffer mechanism is used to buffer the transformer.

[0008] Preferably: the driving mechanism includes a support rod fixedly connected to the support block, the support rod extends into the interior of the arc ring, one end of the support rod extending into the interior of the arc ring is rotatably connected to a connecting rod, the connecting rod is rotatably connected to an arc rod, the arc rod is slidably connected to the inner wall of the arc ring, one of the arc rods is connected to a rotating assembly, and the rotating assembly is used to drive the arc rod to rotate.

[0009] Preferably: the rotating assembly includes a gear rotatably connected to the inner wall of the arc ring, wherein a plurality of teeth distributed in a circumferential manner are fixed on the side wall of one of the arc rods, the teeth are meshed with the gear, the gear is meshed with a rack, one end of the rack passes through the side wall of the arc ring, and a limiting component is provided inside the arc ring, and the limiting component is used to limit the rack from moving toward the outside of the arc ring.

[0010] Preferably: the limiting component includes a plurality of slots arranged on the side wall of the rack and distributed at equal intervals, and a block adapted to the slots is provided inside the arc ring, and the block is connected to the inner wall of the arc ring through a first elastic component, wherein the block is fixedly connected to a pull rod, and the pull rod passes through the side wall of the arc ring.

[0011] Preferably, a guide rod is fixed inside the arc ring, and the guide rod extends into the interior of the rack and is slidably connected to the rack.

[0012] Preferably: the buffer mechanism includes a support plate arranged between the support blocks, the support plate is connected to the support blocks through a fixing assembly, the fixing assembly is used to fix the support plate, wherein a plurality of second elastic components are fixed on the top of the support plate, and a buffer plate is fixed on the upper end of the second elastic component.

[0013] Preferably: the fixing assembly includes a fixing groove arranged on the side wall of the support plate, a groove is provided on the side wall of the support block, a limit block adapted to the fixing groove is provided inside the groove, the limit block is connected to the inner wall of the groove through a third elastic component, wherein the limit block is connected to a traction component, and the traction component is used to pull the limit block into the groove.

[0014] Preferably: the traction component includes a sliding rod passing through the support block, an extrusion plate is fixed on the top of the sliding rod, the extrusion plate is connected to the support block through a fourth elastic component, a baffle is fixed on the bottom of the sliding rod, the baffle is fixedly connected to a traction rope, and the other end of the traction rope extends into the groove and is fixedly connected to the fixed block.

[0015] Compared with the prior art, the invention has the following beneficial effects: the invention fixes the fixing ring on the outside of the electric pole through a plurality of fixing blocks distributed circumferentially, thereby fixing the bracket, has strong stability, and can also be applied to electric poles of different diameters, effectively improving the application scope of the structure;

[0016] The present invention buffers the transformer by using a buffer plate and a support plate, which can effectively reduce the instantaneous pressure of the transformer on the bracket, thereby avoiding the loosening phenomenon between the fixing block and the pole, thereby improving the stability of the bracket, and the buffer plate will automatically fall off after buffering the transformer, so that the buffer plate and the support plate can be recycled, reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure in an embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the arc ring structure in an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the connection structure between the buffer plate and the support plate in an embodiment of the present invention.

[0020] Figure 4 Schematic diagram of the internal structure of the arc ring in an embodiment of the present invention.

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] Figure 6 It is a cross-sectional view of the internal structure of the support plate in an embodiment of the present invention.

[0023] In the figure: 1- bracket; 2- arc ring; 3- support block; 4- driving mechanism; 41- connecting rod; 42- supporting rod; 43- arc rod; 44- teeth; 45- gear; 46- rack; 47- slot; 48- block; 49- first elastic component; 410- pull rod; 411- guide rod; 5- buffer mechanism; 51- buffer plate; 52- support plate; 53- second elastic component; 54- extrusion plate; 55- fourth elastic component; 56- baffle; 57- slide rod; 58- traction rope; 59- third elastic component; 510- limit block; 511- fixed slot; 6- fixed block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] In one embodiment, see Figure 1 , Figure 2 and Figure 3 A mounting and fixing structure for an oil-immersed transformer comprises symmetrically distributed brackets 1, each of which is fixedly connected with symmetrically distributed arc rings 2, the arc rings 2 on the two brackets 1 constitute two complete fixed rings, a plurality of circumferentially distributed fixed blocks 6 are arranged on the inner side of the fixed rings, the fixed blocks 6 are connected with a driving mechanism 4, the driving mechanism 4 is used to drive the plurality of fixed blocks 6 to move synchronously, so that the fixed blocks 6 are closely fitted with the electric poles, and symmetrically distributed support blocks 3 are fixed on the side walls of the brackets 1, the support blocks 3 are connected with a buffer mechanism 5, and the buffer mechanism 5 is used to buffer the transformer.

[0027] In this embodiment, when the fixing mechanism is in use, the two brackets 1 are respectively placed on both sides of the two electric poles, and the two brackets 1 are initially fixed by means of bolts and nuts, so that the arc rings 2 on the two brackets 1 constitute two complete fixing rings. At this time, the two electric poles are respectively located inside the two fixing rings, and then the height of the bracket 1 is adjusted. After the height adjustment of the bracket 1 is completed, the driving mechanism 4 drives the multiple fixing blocks 6 to move synchronously, so that the fixing blocks 6 move synchronously toward the direction of the electric poles until the fixing blocks 6 are tightly fitted with the side walls of the electric poles. The setting of the multiple fixing blocks 6 distributed circumferentially can effectively improve the fixing ring The stability between the bracket 1 and the pole is ensured, and the stability of the bracket 1 is ensured, and the structure can also be applied to poles of different diameters, which effectively improves the scope of application of the structure. After the bracket 1 is fixed, the transformer is hoisted on the surface of the support block 3 by hoisting, and the transformer is buffered by the buffer mechanism 5, which can effectively reduce the impact on the support block 3 at the moment of contact between the transformer and the support block 3, thereby avoiding the loosening phenomenon between the fixing block 6 and the pole caused by the moment of contact between the transformer and the support block 3, further improving the stability of the bracket 1, and ensuring the supporting effect of the support block 3 on the transformer.

[0028] See also Figure 4 The driving mechanism 4 includes a support rod 42 fixedly connected to the support block 3, the support rod 42 extends into the arc ring 2, one end of the support rod 42 extending into the arc ring 2 is rotatably connected to a connecting rod 41, the connecting rod 41 is rotatably connected to an arc rod 43, and the arc rod 43 is slidably connected to the inner wall of the arc ring 2, one of the arc rods 43 is connected to a rotating assembly, and the rotating assembly is used to drive the arc rod 43 to rotate;

[0029] When fixing the bracket 1, the arc rod 43 inside one of the arc rings 2 is driven to rotate through the rotating assembly. When the arc rod 43 rotates, it will be inserted into the arc ring 2 on the other bracket 1, and push the arc rod 43 inside the arc ring 2 on the other bracket 1 to rotate. When the two arc rods 43 rotate, the support rod 42 is driven to move synchronously through the connecting rod 41, and the support rod 42 drives the fixing block 6 to move synchronously toward the direction of the electric pole until the fixing block 6 is tightly fitted with the side wall of the electric pole. The multiple fixing blocks 6 distributed circumferentially can effectively improve the stability between the arc ring 2 and the electric pole, thereby ensuring the stability of the bracket 1.

[0030] See also Figure 5The rotating assembly includes a gear 45 rotatably connected to the inner wall of the arc ring 2, a plurality of teeth 44 distributed in a circumference are fixed on the side wall of one of the arc rods 43, the teeth 44 mesh with the gear 45, the gear 45 meshes with a rack 46, one end of the rack 46 penetrates the side wall of the arc ring 2, and a limiting component is provided inside the arc ring 2, which is used to limit the rack 46 from moving to the outside of the arc ring 2;

[0031] When fixing the bracket 1, the rack 46 is pressed to make the rack 46 move toward the inside of the arc ring 2. The rack 46 moves and drives the gear 45 to rotate. The engagement of the gear 45 with the tooth 44 drives one of the arc rods 43 to rotate, thereby driving multiple fixing blocks 6 to move synchronously. The structure is simple, which is convenient for the staff to quickly fix the bracket 1. A limiting component is provided inside the arc ring 2. The limiting component limits the rack 46 from moving toward the outside of the arc ring 2, thereby ensuring the stability of the rack 46 and thus ensuring the stability of the arc rod 43.

[0032] See also Figure 5 The limiting component includes a plurality of slots 47 arranged on the side wall of the rack 46 and distributed at equal intervals, and a block 48 adapted to the slot 47 is arranged inside the arc ring 2, and the block 48 is connected to the inner wall of the arc ring 2 through a first elastic component 49, wherein the block 48 is fixedly connected to a pull rod 410, and the pull rod 410 passes through the side wall of the arc ring 2;

[0033] When the rack 46 moves, it will squeeze the block 48 through the edge of the slot 47. When the bracket 1 is fixed, the block 48 automatically enters one of the slots 47 under the action of the first elastic component 49, thereby limiting the movement of the rack 46 to the outside of the arc ring 2, effectively ensuring the stability of the rack 46. The first elastic component 49 can be a spring, and the block 48 can be a trapezoidal block. When the bracket 1 needs to be disassembled, the block 48 can be pulled out of the slot 47 by the pull rod 410.

[0034] See also Figure 5 A guide rod 411 is fixed inside the arc ring 2, and the guide rod 411 extends into the rack 46 and is slidably connected to the rack 46;

[0035] The guide rod 411 can limit the rack 46 , thereby effectively improving the stability of the rack 46 when moving.

[0036] See also Figure 3 The buffer mechanism 5 includes a support plate 52 disposed between the support blocks 3, the support plate 52 is connected to the support block 3 through a fixing assembly, the fixing assembly is used to fix the support plate 52, wherein a plurality of second elastic components 53 are fixed on the top of the support plate 52, and a buffer plate 51 is fixed on the upper end of the second elastic component 53;

[0037] When installing the transformer, the transformer is hoisted on the surface of the support block 3 by hoisting. During the hoisting process, the transformer will first fall on the surface of the buffer plate 51, and the buffer plate 51 will initially support the transformer, and the transformer will squeeze the second elastic component 53 through the buffer plate 51. The second elastic component 53 can be a spring. The second elastic component 53 can play a buffering role on the transformer through the buffer plate 51, which can effectively reduce the impact on the support block 3 at the moment when the transformer contacts the support block 3, thereby avoiding the loosening phenomenon between the fixed block 6 and the electric pole caused by the moment when the transformer contacts the support block 3, ensuring the supporting effect of the support block 3 on the transformer. As the buffer plate 51 moves downward, the bottom of the transformer will contact the surface of the support block 3. When the bottom of the transformer contacts the surface of the support block 3, the fixing component automatically releases the fixation of the support plate 52, and the support plate 52 and the buffer plate 51 automatically fall from between the support blocks 3. At this time, the support of the transformer by the support block 3 is completed, and the staff can recycle the support plate 52 and the buffer plate 51, reducing the manufacturing cost.

[0038] See also Figure 3 and Figure 6 The fixing assembly includes a fixing groove 511 arranged on the side wall of the support plate 52, and a groove is arranged on the side wall of the support block 3. A limit block 510 adapted to the fixing groove 511 is arranged inside the groove. The limit block 510 is connected to the inner wall of the groove through a third elastic component 59, wherein the limit block 510 is connected to a traction component, and the traction component is used to pull the limit block 510 into the groove;

[0039] During the installation of the transformer, the limit block 510 is located inside the fixing groove 511 under the action of the third elastic component 59. The limit block 510 can fix the support plate 52 through the fixing groove 511. The third elastic component 59 can be a spring. When the bottom of the transformer contacts the surface of the support block 3, the traction component just pulls the limit block 510 into the groove. Without the support of the limit block 510, the buffer plate 51 and the support plate 52 automatically fall off from between the support blocks 3, thereby realizing the recycling of the buffer plate 51 and the support plate 52. After the buffer plate 51 and the support plate 52 fall off, the transformer can be fixed to the surface of the support block 3 by means of bolts and nuts.

[0040] See also Figure 6 The traction component includes a slide bar 57 that passes through the support block 3, a squeeze plate 54 is fixed to the top of the slide bar 57, the squeeze plate 54 is connected to the support block 3 through a fourth elastic component 55, a baffle 56 is fixed to the bottom of the slide bar 57, the baffle 56 is fixedly connected to a traction rope 58, and the other end of the traction rope 58 extends into the groove and is fixedly connected to the fixed block 6;

[0041] When installing the transformer, the extrusion plate 54 and the buffer plate 51 can jointly support the transformer. Under the pressure of the transformer, the extrusion plate 54 drives the baffle 56 to move downward through the slide rod 57, and the baffle 56 pulls the limit block 510 through the traction rope 58, thereby pulling the limit block 510 into the groove, and then the support plate 52 and the buffer plate 51 automatically fall from between the support blocks 3. The fourth elastic component 55 can also play a buffering role for the transformer through the extrusion plate 54, thereby further reducing the impact of the transformer on the bracket 1 during the installation process. The fourth elastic component 55 can be a spring.

[0042] Working principle: When the fixing mechanism is in use, the two brackets 1 are placed on both sides of the two electric poles, and the two brackets 1 are initially fixed by bolts and nuts, so that the arc rings 2 on the two brackets 1 form two complete fixing rings. At this time, the two electric poles are respectively located inside the two fixing rings, and then the height of the bracket 1 is adjusted. After the height of the bracket 1 is adjusted, the rack 46 is pressed to move the rack 46 toward the inside of the arc ring 2. The rack 46 moves while driving the gear 45 to rotate, and the meshing of the gear 45 and the tooth 44 drives one of the arc rings 2 to rotate. The rod 43 rotates, and the arc rod 43 is inserted into the arc ring 2 on the other bracket 1 while rotating, and pushes the arc rod 43 inside the arc ring 2 on the other bracket 1 to rotate. The two arc rods 43 rotate and drive the support rod 42 to move synchronously through the connecting rod 41. The support rod 42 drives the fixed block 6 to move synchronously toward the direction of the electric pole until the fixed block 6 fits tightly with the side wall of the electric pole. At this time, the card block 48 automatically enters one of the card slots 47, thereby limiting the movement of the rack 46 to the outside of the arc ring 2. Through multiple fixed blocks 6 distributed on the circumference, it can be The stability between the arc ring 2 and the electric pole is effectively improved, and the structure can also be applied to electric poles of different diameters, which effectively improves the scope of application of the structure. After the bracket 1 is fixed, the transformer is hoisted on the surface of the support block 3 by hoisting. The buffer plate 51 and the extrusion plate 54 above the support block 3 buffer the transformer, which can effectively reduce the instantaneous pressure of the transformer on the bracket 1, thereby avoiding the loosening phenomenon between the fixing block 6 and the electric pole, further improving the stability of the bracket 1, and ensuring the supporting effect of the support block 3 on the transformer. The extrusion plate 54 is subjected to the pressure of the transformer and drives the baffle plate 56 to move downward through the slide bar 57. The baffle plate 56 pulls the limit block 510 through the traction rope 58, thereby pulling the limit block 510 into the groove. Without the support of the limit block 510, the buffer plate 51 and the support plate 52 automatically fall off from between the support blocks 3, so that the staff can recycle the support plate 52 and the buffer plate 51, thereby reducing the manufacturing cost. After the buffer plate 51 and the support plate 52 fall off, the transformer can be fixed to the surface of the support block 3 by bolts and nuts.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mounting and fixing structure for an oil-immersed transformer, comprising symmetrically distributed brackets; characterized in that: The brackets are all fixedly connected with arc rings that are symmetrically distributed, and the arc rings on the two brackets constitute two complete fixed rings. The inner sides of the fixed rings are provided with a plurality of fixed blocks that are circumferentially distributed. The fixed blocks are connected with a driving mechanism, and the driving mechanism is used to drive the plurality of fixed blocks to move synchronously, so that the fixed blocks fit tightly with the electric poles. The side walls of the brackets are all fixed with support blocks that are symmetrically distributed, and the support blocks are connected with a buffer mechanism, and the buffer mechanism is used to buffer the transformer; The driving mechanism includes a support rod fixedly connected to the support block, the support rod extends into the arc ring, one end of the support rod extending into the arc ring is rotatably connected to a connecting rod, the connecting rod is rotatably connected to an arc rod, the arc rod is slidably connected to the inner wall of the arc ring, one of the arc rods is connected to a rotating assembly, and the rotating assembly is used to drive the arc rod to rotate; The rotating assembly includes a gear rotatably connected to the inner wall of the arc ring, a plurality of teeth distributed in a circumference are fixed on the side wall of one of the arc rods, the teeth are meshed with the gear, the gear is meshed with a rack, one end of the rack passes through the side wall of the arc ring, and a limiting component is provided inside the arc ring, the limiting component is used to limit the rack from moving to the outside of the arc ring; The limiting component includes a plurality of slots arranged on the side wall of the rack and distributed at equal intervals. A block adapted to the slots is provided inside the arc ring. The block is connected to the inner wall of the arc ring through a first elastic component. The block is fixedly connected to a pull rod that passes through the side wall of the arc ring.

2. The installation and fixing structure of an oil-immersed transformer according to claim 1, characterized in that: A guide rod is fixed inside the arc ring, and the guide rod extends into the interior of the rack and is slidably connected with the rack.

3. The installation and fixing structure of an oil-immersed transformer according to claim 1, characterized in that: The buffer mechanism includes a support plate arranged between the support blocks, the support plate is connected to the support blocks through a fixing assembly, the fixing assembly is used to fix the support plate, wherein a plurality of second elastic components are fixed on the top of the support plate, and a buffer plate is fixed on the upper end of the second elastic component.

4. The installation and fixing structure of an oil-immersed transformer according to claim 3 is characterized in that: The fixing assembly includes a fixing groove arranged on the side wall of the support plate, a groove is provided on the side wall of the support block, a limit block adapted to the fixing groove is provided inside the groove, the limit block is connected to the inner wall of the groove through a third elastic component, wherein the limit block is connected to a traction component, and the traction component is used to pull the limit block into the groove.

5. The installation and fixing structure of an oil-immersed transformer according to claim 4, characterized in that: The traction component includes a sliding rod passing through the support block, a pressing plate is fixed on the top of the sliding rod, the pressing plate is connected to the support block through a fourth elastic component, a baffle is fixed on the bottom of the sliding rod, a traction rope is fixedly connected to the baffle, and the other end of the traction rope extends into the groove and is fixedly connected to the fixed block.

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