Large shaft grounding device

Abstract

The utility model relates to the technical field of large shaft grounding, and discloses a large shaft grounding device comprising a bottom insulating plate, the right end of the top of the bottom insulating plate is fixedly connected with a dismounting mechanism, and the left end of the top of the bottom insulating plate is fixedly connected with a grounding mechanism; the dismounting and mounting mechanism comprises a mounting seat, the mounting seat is fixedly connected to the right end of the top of the bottom insulating plate, a fixing frame is fixedly connected to the top of the mounting seat, a fixing plate is fixedly connected to the top of the fixing frame, a handle is arranged in the fixing frame, and a metal elastic sheet is arranged on one side of the mounting seat. The surface of the metal elastic sheet is fixedly connected with a copper petal, and the bottom end of the fixing frame is fixedly connected with a fixing block. According to the large shaft grounding device, through the arrangement of the dismounting mechanism, the corresponding large shaft grounding conductive effect can be achieved through the effects of the metal elastic piece and the copper petal, regular maintenance, inspection and replacement operation of the metal elastic piece and the copper petal is facilitated, most static electricity can be guided out through the copper petal, contact is stable, and sparks are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of shaft grounding technology, specifically a shaft grounding device. Background Technology

[0002] A generator shaft grounding device is a device used to connect the generator shaft to the grounding system. Common generator shaft grounding devices include two forms: carbon brush grounding and braided brush grounding. Its main function is to introduce the induced voltage generated by the generator shaft during operation into the ground, so that the shaft potential is fixed at zero potential, avoiding the accumulation of induced voltage that could lead to discharge and damage to bearings and other components. It can also be used to detect shaft current in order to monitor the generator's operating status.

[0003] In the application of traditional large shaft grounding devices, many problems are often encountered. On the one hand, the maintenance and replacement of grounding conductive components are extremely inconvenient, requiring a lot of manpower, material resources and time. This not only affects the normal operation efficiency of the equipment, but also increases the operation and maintenance costs. On the other hand, traditional devices are insufficient in terms of static electricity discharge, and cannot stably discharge most of the static electricity, resulting in unstable contact and easy generation of sparks. In addition, due to the skin effect, traditional carbon brush grounding cannot discharge high-frequency current, which poses a serious threat to the safe operation of the equipment. Against this background, there is an urgent need for a new type of large shaft grounding device. Utility Model Content

[0004] The purpose of this invention is to provide a large shaft grounding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large shaft grounding device, including a bottom insulating plate, wherein a disassembly and assembly mechanism is fixedly connected to the top right end of the bottom insulating plate, and a grounding mechanism is fixedly connected to the top left end of the bottom insulating plate;

[0006] The disassembly and assembly mechanism includes a mounting base, which is fixedly connected to the top right end of the bottom insulating plate. A fixing frame is fixedly connected to the top of the mounting base, and a fixing plate is fixedly connected to the top of the fixing frame. A handle is provided inside the fixing frame. A metal spring is provided on one side of the mounting base, and a copper petal is fixedly connected to the surface of the metal spring. A fixing block is fixedly connected to the bottom end of the fixing frame.

[0007] Preferably, a threaded hole is provided at one end of the mounting base, and the surface of the handle is threadedly connected to the inside of the threaded hole, which facilitates the threaded rotation of the handle.

[0008] Preferably, a slot is provided at the top of the fixing frame, and the bottom of the fixing plate is slidably connected to the inside of the slot.

[0009] Preferably, the grounding mechanism includes a supporting insulating plate, which is fixedly connected to the top left end of the bottom insulating plate. A supporting plate is fixedly connected to the top of the supporting insulating plate. Metal assembly blocks are fixedly connected to both ends of the top of the supporting plate. Carbon fiber is provided on the surface of the metal assembly blocks. Bolts are provided inside the carbon fiber. A wire is fixedly connected to the back of the top of the supporting plate.

[0010] Preferably, the bolts and carbon fibers are distributed on the surface of the support plate, and the metal assembly blocks and carbon fibers are arranged alternately.

[0011] Preferably, the metal assembly block has a threaded hole inside, and the bolt surface is threaded to the inside of the threaded hole, which facilitates the installation of carbon fiber.

[0012] Compared with the prior art, the present invention provides a large shaft grounding device, which has the following beneficial effects:

[0013] 1. The main shaft grounding device, through the set disassembly and assembly mechanism, allows the metal spring and copper petal to be inserted between the fixed block and one end of the handle. The copper petal is in contact with the rotating shaft, so the metal spring and copper petal can be used to perform the corresponding main shaft grounding conductivity. It also facilitates the regular maintenance and replacement of the metal spring and copper petal. The copper petal can discharge most of the static electricity and has stable contact, effectively preventing sparks.

[0014] 2. The main shaft grounding device uses a grounding mechanism to insert carbon fibers into the metal assembly blocks, and then uses bolts to install and fix them, thus ensuring the stability of the carbon fibers during use. The carbon fibers can effectively solve the skin effect, pierce the oil film, maintain stable contact in the case of light oil contamination, and facilitate installation, disassembly and maintenance operations, thereby allowing the electricity to be discharged and ensuring the safety of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a perspective view of the disassembly and assembly mechanism of this utility model;

[0018] Figure 3 This is a perspective view of the grounding mechanism of this utility model;

[0019] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Bottom insulation plate; 2. Disassembly and assembly mechanism; 21. Mounting base; 22. Fixing frame; 23. Fixing plate; 24. Handle; 25. Metal spring; 26. Copper petal; 27. Fixing block; 3. Grounding mechanism; 31. Supporting insulation plate; 32. Supporting plate; 33. Metal assembly block; 34. Carbon fiber; 35. Bolt; 36. Wire. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] This utility model provides the following technical solution:

[0024] Example 1

[0025] Combination Figures 2 to 4 A large shaft grounding device includes a bottom insulating plate 1, a disassembly and assembly mechanism 2 fixedly connected to the top right end of the bottom insulating plate 1, and a grounding mechanism 3 fixedly connected to the top left end of the bottom insulating plate 1.

[0026] The disassembly and assembly mechanism 2 includes a mounting base 21, which is fixedly connected to the top right end of the bottom insulating plate 1. A fixing frame 22 is fixedly connected to the top of the mounting base 21, and a fixing plate 23 is fixedly connected to the top of the fixing frame 22. A handle 24 is provided inside the fixing frame 22. A metal spring 25 is provided on one side of the mounting base 21, and a copper petal 26 is fixedly connected to the surface of the metal spring 25. A fixing block 27 is fixedly connected to the bottom end of the fixing frame 22. A threaded hole is opened at one end inside the mounting base 21, and the surface of the handle 24 is threadedly connected to the inside of the threaded hole.

[0027] Furthermore, a slot is provided at the top of the fixed frame 22, and the bottom of the fixed plate 23 is slidably connected to the inside of the slot. The metal spring 25 and the copper petal 26 are inserted between the fixed block 27 and one end of the handle 24. The copper petal 26 is in contact with the rotating shaft, so that the metal spring 25 and the copper petal 26 can be used to perform the corresponding grounding and conductive function of the shaft. It also facilitates the regular maintenance and replacement of the metal spring 25 and the copper petal 26. The copper petal 26 can discharge most of the static electricity and has stable contact, effectively preventing sparks.

[0028] Example 2

[0029] See Figure 1-4 Furthermore, based on Embodiment 1, the grounding mechanism 3 further includes a supporting insulating plate 31, which is fixedly connected to the top left end of the bottom insulating plate 1. A supporting plate 32 is fixedly connected to the top of the supporting insulating plate 31. Metal assembly blocks 33 are fixedly connected to both ends of the top of the supporting plate 32. Carbon fiber 34 is provided on the surface of the metal assembly blocks 33. Bolts 35 are provided inside the carbon fiber 34. A wire 36 is fixedly connected to the back of the top of the supporting plate 32. Bolts 35 and carbon fiber 34 are distributed on the surface of the supporting plate 32. The metal assembly blocks 33 and carbon fiber 34 are arranged alternately.

[0030] Furthermore, threaded holes are opened inside the metal assembly block 33, and the surface of the bolt 35 is threaded to the inside of the threaded hole. The carbon fiber 34 is inserted into the metal assembly block 33, and then it is installed and fixed by the action of the bolt 35. This ensures the stability of the carbon fiber 34 during use. The carbon fiber 34 can effectively solve the skin effect, can pierce the oil film, maintain stable contact in the state of light oil contamination, and facilitate installation, disassembly and maintenance operations, thereby allowing the electricity to be discharged and ensuring the safety of equipment use.

[0031] In actual operation, when this device is used, one end of the wire 36 contacts the surface of the copper petal 26. During operation, the device components are first installed by inserting the metal spring 25 and the copper petal 26 between the fixing block 27 and one end of the handle 24. The copper petal 26 is in contact with the rotating shaft, thus playing a corresponding grounding and conductive role. Then, the handle 24 is rotated under the action of the thread inside the mounting base 21, thereby driving the handle 24 to move and clamp the metal spring 25 and the copper petal 26. Thus, the metal spring 25 and the copper petal 26 can be used to play a corresponding large shaft grounding and conductive role.

[0032] Afterwards, the electricity connected to the main shaft needs to be discharged through the grounding mechanism 3. When using the grounding mechanism 3, the carbon fiber 34 is first installed by inserting the carbon fiber 34 into the metal assembly block 33. Then, the bolts 35 are used to install and fix it, which can ensure the stability of the carbon fiber 34 during use and facilitate the installation, disassembly and maintenance operations, thereby allowing the electricity to be discharged and ensuring the safety of the equipment.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A large shaft grounding device, comprising a bottom insulating plate (1), characterized in that: The bottom insulating plate (1) is fixedly connected to the right top end of the top assembly and disassembly mechanism (2), and the bottom insulating plate (1) is fixedly connected to the left top end of the top end of the top grounding mechanism (3). The disassembly and assembly mechanism (2) includes a mounting base (21), which is fixedly connected to the top right end of the bottom insulating plate (1). A fixing frame (22) is fixedly connected to the top of the mounting base (21), and a fixing plate (23) is fixedly connected to the top of the fixing frame (22). A handle (24) is provided inside the fixing frame (22). A metal spring (25) is provided on one side of the mounting base (21), and a copper petal (26) is fixedly connected to the surface of the metal spring (25). A fixing block (27) is fixedly connected to the bottom end of the fixing frame (22).

2. The large shaft grounding device according to claim 1, characterized in that: The mounting base (21) has a threaded hole at one end, and the surface of the handle (24) is threadedly connected to the inside of the threaded hole.

3. The large shaft grounding device according to claim 1, characterized in that: The top of the fixed frame (22) has a slot, and the bottom of the fixed plate (23) is slidably connected to the inside of the slot.

4. The large shaft grounding device according to claim 1, characterized in that: The grounding mechanism (3) includes a supporting insulating plate (31), which is fixedly connected to the top left end of the bottom insulating plate (1). A supporting plate (32) is fixedly connected to the top of the supporting insulating plate (31). Metal assembly blocks (33) are fixedly connected to both ends of the top of the supporting plate (32). Carbon fiber (34) is provided on the surface of the metal assembly block (33). Bolts (35) are provided inside the carbon fiber (34). A wire (36) is fixedly connected to the back of the top of the supporting plate (32).

5. A large shaft grounding device according to claim 4, characterized in that: The bolts (35) and carbon fibers (34) are distributed on the surface of the support plate (32), and the metal assembly block (33) and carbon fibers (34) are arranged alternately.

6. A large shaft grounding device according to claim 4, characterized in that: The metal assembly block (33) has a threaded hole inside, and the surface of the bolt (35) is threadedly connected to the inside of the threaded hole.

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