Relay protection device for transformer

Abstract

The utility model discloses a relay protection device for a transformer, and the device comprises a main body unit which comprises a bearing plate body and a fixed frame fixedly disposed on the upper surface of the bearing plate body; and the driving placement unit comprises a single rotating ring fixedly connected with one side of the supporting plate and a sliding rail arranged on the bearing plate body in a hollowed-out mode. According to the utility model, the output shaft of the driving motor drives the rotating and collecting ring to move, so that the rotating and collecting ring winds and collects the connecting rope, the clamping plate is driven to extrude the relay body, the position of the relay body is shifted, the relay body is installed in the relay protection device, the relay body is convenient to install, and the reliability of the relay protection device is improved. When the relay body needs to be maintained and replaced, the first electric telescopic rod and the second electric telescopic rod are used for driving the upper push plate and the push plate to move respectively, then the relay body is lifted by the upper push plate, and the relay body is pushed out by the push plate, so that the relay body is convenient to assemble, disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of relay protection, in particular to a relay protection device for a transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil and the iron core (magnetic core). Its main functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization (magnetic saturation transformer). The circuit failure problem of the transformer mainly refers to a short circuit at the transformer outlet, a short circuit to ground between leads or windings inside the transformer, and a short circuit between phases that causes a fault.

[0003] Relays are usually used to protect transformers from circuit failures to reduce damage. However, current relays are all fixed with bolts, and bolts must be frequently disassembled and assembled during maintenance, which is very inconvenient. Replacing relays is also troublesome and has low replacement efficiency. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing relay protection device for transformers, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a relay protection device for a transformer, which is suitable for solving the problem that bolts are used for fixing the device, the bolts need to be frequently disassembled and assembled during maintenance, which is very inconvenient, and the replacement of relays is also troublesome and the replacement efficiency is low.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a relay protection device for a transformer, comprising:

[0008] The main unit includes a load-bearing plate and a fixing frame fixedly mounted on the upper surface of the load-bearing plate. The fixing frame is fixedly connected to a cover plate, and the cover plate is fixedly connected to symmetrically distributed fans. The load-bearing plate is fixedly connected to a support plate, and the upper portion of the load-bearing plate is fixedly connected to a back plate.

[0009] The driving placement unit includes a single rotating ring fixedly connected to one side of the support plate and a slide rail hollowed out on the load-bearing plate body. The single rotating ring is fixedly connected to the connecting plate on the outside, and the other end of the connecting plate is provided with a double rotating ring. A roller is slidably connected to the slide rail, and the roller is fixedly connected to the transfer plate. A clamping plate is embedded in one side of the fixed frame.

[0010] The pushing and picking unit includes a first electric telescopic rod fixedly connected to one side of the back plate and a second electric telescopic rod fixedly connected to the load-bearing plate body. The end of the first electric telescopic rod away from the back plate is fixedly connected to the pushing plate, and one end of the second electric telescopic rod is fixedly connected to the upper pushing plate.

[0011] As a preferred solution of the relay protection device for a transformer described in the utility model, the inner diameter of the fixed frame is adapted to the outer diameter of the back plate, and the shape of the fixed frame is n-shaped, the interior of the cover plate is hollowed out to provide ventilation grooves, and the relay body is placed on the push-up plate.

[0012] As a preferred solution of the relay protection device for a transformer described in the utility model, wherein: the outside of the clamping plate is hollowed out to provide a heat dissipation groove, there are a number of single rotating rings and double rotating rings, and each two groups of single rotating rings and double rotating rings are symmetrical about the center of the support plate, and the single rotating rings and double rotating rings are connected by a connecting plate.

[0013] As a preferred solution of the relay protection device for a transformer described in the utility model, wherein: the fixed frame is hollowed out to provide equidistant and symmetrical rope grooves, and a connecting rope passes through each rope groove, the fixed frame is hollowed out to provide equidistant and symmetrical transfer grooves, and a drive motor is fixedly connected to the transfer groove, the output shaft of the drive motor is fixedly connected to the transfer ring, the other side of the transfer ring is fixedly connected to the limit plate, and the transfer ring and the clamping plate are fixedly connected by a connecting rope.

[0014] As a preferred solution of the relay protection device for transformers described in the utility model, the clamping plate is fixedly connected to a temperature-resistant soft plate on one side close to the fixed frame, and the thickness of the temperature-resistant soft plate is one third or one quarter of the thickness of the clamping plate.

[0015] As a preferred solution of the relay protection device for a transformer described in the utility model, wherein: the number of the first electric telescopic rod and the second electric telescopic rod are both several, and the several first electric telescopic rods and the second electric telescopic rods are equidistantly and symmetrically distributed on one side of the pushing plate and the upper pushing plate.

[0016] Beneficial effects of the utility model:

[0017] When the equipment is assembled, the relay body is placed on the transfer plate, and the roller is used to drive the transfer plate to move inside the slide rail, so that the relay body is easy to move. When the relay body moves to the specified position, the drive motor in the fixed frame is used to drive the rotating ring to move through the output shaft of the drive motor, so that the rotating ring reels in the connecting rope, drives the clamping plate to squeeze the relay body, causing it to shift its position, and then installs the relay body inside the relay protection device, making the relay body easy to install. When the relay body needs to be repaired and replaced, the first electric telescopic rod and the second electric telescopic rod are used to drive the upper push plate and the push plate to move respectively, and then the upper push plate is used to lift the relay body, and the push plate is used to push the relay body out, making the relay body easy to load and unload and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of a relay protection device for a transformer proposed in the utility model;

[0020] Figure 2 This is a schematic structural diagram of a drive placement unit for a transformer relay protection device proposed in the present invention;

[0021] Figure 3 This is a schematic diagram of the distribution structure of the push-up plate and the push-out plate of a relay protection device for a transformer proposed in the utility model;

[0022] Figure 4 This is a schematic structural diagram of a push-and-remove unit for a transformer relay protection device proposed in the present utility model;

[0023] Figure 5 The present invention is a schematic diagram of a partially enlarged structure of a relay protection device for a transformer proposed in the present invention.

[0024] Description of the drawings: 100 main unit, 101 load-bearing plate, 102 fixed frame, 103 fan, 104 cover plate, 105 support plate, 106 back plate, 107 relay body, 200 drive placement unit, 201 connecting plate, 202 single rotating ring, 203 double rotating ring, 204 roller, 205 rope groove, 206 slide rail, 207 drive motor, 208 limit plate, 209 rotating ring, 210 rotating groove, 211 clamping plate, 212 transfer plate, 300 pushing and picking unit, 301 first electric telescopic rod, 302 second electric telescopic rod, 303 upper push plate, 304 push plate. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0029] Reference Figure 1-Figure 5 , which is an embodiment of the present utility model, provides a relay protection device for a transformer, including a main unit 100, a driving and placing unit 200, and a pushing and picking unit 300.

[0030] The main unit 100 includes a load-bearing plate 101 and a fixed frame 102 fixedly mounted on the upper surface of the load-bearing plate 101. The fixed frame 102 is fixedly connected to a cover plate 104, and the cover plate 104 is fixedly connected to symmetrically distributed fans 103. The fans 103 are used to dissipate heat inside the relay protection device to prevent a large amount of heat accumulation from accelerating the aging of internal components. The load-bearing plate 101 is fixedly connected to a support plate 105, and the upper portion of the load-bearing plate 101 is fixedly connected to a back plate 106. The inner diameter of the fixed frame 102 matches the outer diameter of the back plate 106, and the fixed frame 102 is in an N-shaped shape. The cover plate 104 is hollowed out to provide ventilation slots. The relay body 107 is placed on the upper push plate 303.

[0031] The driving placement unit 200 includes a single rotating ring 202 fixedly connected to one side of the support plate 105 and a slide rail 206 hollowed out on the load-bearing plate body 101. The single rotating ring 202 is fixedly connected to the connecting plate 201 on the outside, and the other end of the connecting plate 201 is provided with a double rotating ring 203. The single rotating ring 202, the double rotating ring 203 and the connecting plate 201 make the clamping plate 211 more stable during traction movement. A roller member 204 is slidably connected in the slide rail 206, and the roller member 204 is fixedly connected to the transfer plate 212, wherein the roller member 204 is composed of a roller and a pillar. A clamping plate 211 is embedded in one side of the fixed frame 102, and the clamping plate 211 is hollowed out to provide a heat dissipation groove. There are a number of single rotating rings 202 and double rotating rings 203, and every two groups of single rotating rings 202 and double rotating rings 20 3 are symmetrical about the center of the support plate 105. The single rotating ring 202 and the double rotating ring 203 are connected by a connecting plate 201. The fixed frame 102 is hollowed out with equidistant and symmetrical rope grooves 205, and each rope groove 205 passes through a connecting rope. The fixed frame 102 is hollowed out with equidistant and symmetrical rotation and receiving grooves 210, and a driving motor 207 is fixedly connected to the rotation and receiving grooves 210. The output shaft of the driving motor 207 drives the rotation and receiving ring 209 to move, thereby causing the rotation and receiving ring 209 to reel in the connecting rope, driving the clamping plate 211 to squeeze the relay body 107, causing it to shift in position. The output shaft of the driving motor 207 is fixedly connected to the rotation and receiving ring 209. The other side of the rotation and receiving ring 209 is fixedly connected to the limit plate 208. The rotation and receiving ring 209 and the clamping plate 211 are fixedly connected by a connecting rope.

[0032] The pushing and retrieving unit 300 includes a first electric telescopic rod 301 fixedly connected to one side of the back plate 106 and a second electric telescopic rod 302 fixedly connected to the load-bearing plate body 101. The end of the first electric telescopic rod 301 away from the back plate 106 is fixedly connected to the pushing plate 304, and one end of the second electric telescopic rod 302 is fixedly connected to the upper pushing plate 303. There are several first electric telescopic rods 301 and second electric telescopic rods 302, and the several first electric telescopic rods 301 and second electric telescopic rods 302 are symmetrically distributed on one side of the pushing plate 304 and the upper pushing plate 303 respectively. The first electric telescopic rod 301 and the second electric telescopic rod 302 are used to drive the upper pushing plate 303 and the pushing plate 304 to move respectively, and then the upper pushing plate 303 is used to lift the relay body 107, and the pushing plate 304 is used to push the relay body 107 out, so that the relay body 107 is easy to load and unload and maintain.

[0033] During use, when the equipment is assembled, the relay body 107 is placed on the transmission plate 212, and then the roller member 204 is used to drive the transmission plate 212 to move inside the slide rail 206, so that the relay body 107 is easy to move. When the relay body 107 moves to the specified position, it is driven by the drive motor 207 in the fixed frame 102, and the output shaft of the drive motor 207 drives the retracting ring 209 to move, so that the retracting ring 209 reels the connecting rope, drives the clamping plate 211 to squeeze the relay body 107, causing it to shift its position, and then the relay body 107 is installed inside the relay protection device, making the relay body 107 easy to install. When the relay body 107 needs to be repaired or replaced, the first electric telescopic rod 301 and the second electric telescopic rod 302 are used to drive the upper push plate 303 and the push plate 304 to move respectively, and then the upper push plate 303 is used to lift the relay body 107, and then the push plate 304 is used to push the relay body 107 out, making the relay body 107 easy to load and unload and repair.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A relay protection device for a transformer, characterized in that: include: A main unit (100) comprises a load-bearing plate body (101) and a fixing frame (102) fixedly mounted on the upper surface of the load-bearing plate body (101); a cover plate (104) is fixedly connected to the fixing frame (102); and symmetrically distributed fans (103) are fixedly connected to the cover plate (104); a support plate (105) is fixedly connected to the load-bearing plate body (101); and the upper portion of the load-bearing plate body (101) is fixedly connected to a back plate (106); A driving placement unit (200) comprises a single rotating ring (202) fixedly connected to one side of a support plate (105) and a slide rail (206) hollowed out and arranged on a load-bearing plate body (101); the single rotating ring (202) is fixedly connected to a connecting plate (201) on the outside, and a double rotating ring (203) is arranged at the other end of the connecting plate (201); a roller member (204) is slidably connected to the inside of the slide rail (206), and a transfer plate (212) is fixedly connected to the roller member (204); and a clamping plate (211) is embedded in one side of the fixed frame (102); The pushing and picking unit (300) comprises a first electric telescopic rod (301) fixedly connected to one side of a back plate (106) and a second electric telescopic rod (302) fixedly connected to a load-bearing plate body (101), wherein one end of the first electric telescopic rod (301) away from the back plate (106) is fixedly connected to a pushing plate (304), and one end of the second electric telescopic rod (302) is fixedly connected to an upper pushing plate (303).

2. A relay protection device for a transformer according to claim 1, characterized in that: The inner diameter of the fixed frame (102) is compatible with the outer diameter of the back plate (106), and the shape of the fixed frame (102) is n-shaped. The cover plate (104) is hollowed out to provide ventilation grooves, and a relay body (107) is placed on the upper push plate (303).

3. A relay protection device for a transformer according to claim 1, characterized in that: The clamping plate (211) is hollowed out to be provided with a heat dissipation groove. The single rotating ring (202) and the double rotating ring (203) are provided in a certain number, and each two groups of the single rotating ring (202) and the double rotating ring (203) are symmetrical about the center of the support plate (105). The single rotating ring (202) and the double rotating ring (203) are connected via a connecting plate (201).

4. A relay protection device for a transformer according to claim 1, characterized in that: The fixed frame (102) is hollowed out to form equidistant and symmetrical rope grooves (205), and a connecting rope passes through each rope groove (205); the fixed frame (102) is hollowed out to form equidistant and symmetrical transfer grooves (210), and a driving motor (207) is fixedly connected to the transfer groove (210); the output shaft of the driving motor (207) is fixedly connected to a transfer ring (209), and the other side of the transfer ring (209) is fixedly connected to a limit plate (208); the transfer ring (209) and the clamping plate (211) are fixedly connected via a connecting rope.

5. A relay protection device for a transformer according to claim 1, characterized in that: A temperature-resistant soft plate is fixedly connected to one side of the clamping plate (211) close to the fixed frame (102), and the thickness of the temperature-resistant soft plate is one third or one quarter of the thickness of the clamping plate (211).

6. A relay protection device for a transformer according to claim 2, characterized in that: The number of the first electric telescopic rod (301) and the number of the second electric telescopic rod (302) are both multiple, and the multiple first electric telescopic rods (301) and the multiple second electric telescopic rods (302) are symmetrically distributed at equal distances on one side of the pushing plate (304) and the upper pushing plate (303).

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