Lightning protector replacement tool

Abstract

The utility model relates to a lightning protector replacing tool, and belongs to the field of wind power generation. Comprising a tool body, a plurality of first connecting columns and a plurality of second connecting columns. The tool body is of a tubular structure which is matched with the lightning protection device in size and provided with one closed end, the first connecting columns are arranged at the open end of the tool body in a winding mode and connected with the lightning protection device in a matched mode, and the second connecting column is arranged at the closed end of the tool body and connected with a crank mechanism in a matched mode. The tool body, the first connecting column and the second connecting column are driven to rotate by rotating the crank mechanism, and then the lightning protection protector is driven to rotate out for replacement. According to the utility model, the replacement efficiency of the lightning protector is improved, the working difficulty is reduced, the time cost and the shutdown time of the fan are reduced, and the power generation income is increased.

Description

Technical Field

[0001] The utility model relates to the field of wind power generation, in particular to a lightning protector replacement tool. Background Art

[0002] With the widespread adoption of wind power worldwide, the safe operation of wind turbines has become crucial, with overvoltage being a particularly prominent issue. Wind turbine overvoltage refers to the phenomenon whereby voltage levels exceeding normal levels are generated within the electrical components of the nacelle when a wind turbine is struck by lightning or other factors cause an abnormal increase in grid voltage.

[0003] my country boasts abundant wind energy resources, resulting in large installed wind turbine capacities. However, wind energy resources are concentrated in open areas and high mountains, areas prone to lightning strikes. This makes overvoltage issues more likely to occur in the event of a lightning strike. To address overvoltage issues and protect the safe and stable operation of wind turbine equipment, measures such as lightning arresters and overvoltage protection devices are commonly implemented. Lightning arresters (SPDs) installed at the bottom of the wind turbine's frequency conversion system circuit breaker absorb and dissipate the extreme energy of lightning strikes, protecting the equipment from damage caused by lightning surges and other power surge events. However, due to the high probability of SPDs being impacted by overvoltage, they are also more likely to be damaged.

[0004] Typically, when a lightning arrester (SPD) is damaged, maintenance personnel, armed with wrenches and multimeters, manually disassemble multiple components. However, due to the SPD's location between the busbar and the cabinet, the limited space restricts disassembly, increasing the difficulty and time required. This inconvenience also increases the risk of equipment damage. If equipment failures are not promptly repaired, resulting in the wind turbine's inability to operate normally, this can lead to direct economic losses and negative impacts on the company. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a lightning protector replacement tool to solve the above problems.

[0006] The technical solution of the utility model to solve the above-mentioned technical problems is as follows: A lightning protector replacement tool, comprising: a tool body, a plurality of first connecting columns and a second connecting column; the tool body is a tubular structure that is adapted to the size of the lightning protector and is closed at one end, a plurality of the first connecting columns are arranged around the open end of the tool body and are adaptively connected to the lightning protector, the second connecting column is arranged at the closed end of the tool body and is adaptively connected to the crank mechanism, and the tool body, the first connecting column and the second connecting column are driven to rotate by rotating the crank mechanism, thereby driving the lightning protector to be rotated out and replaced.

[0007] The beneficial effects of the present invention are: adapting and connecting multiple first connecting columns on the tool body to the lightning protector, and adapting and connecting the second connecting column to the crank mechanism, which is conducive to transmitting the power when the crank mechanism rotates to the lightning protector through the tool body, the first connecting column and the second connecting column, so that the lightning protector rotates, and finally realizes the lightning protector being rotated out and rotated in after replacement, thereby improving the replacement efficiency of the lightning protector, reducing the work difficulty, reducing the time cost and the wind turbine downtime, and increasing the power generation income.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the first connecting column is fixedly arranged on the end wall of the open end of the tool body.

[0010] The beneficial effect of adopting the above further solution is that it is conducive to adaptively connecting the tool body and the lightning protector through the first connecting column.

[0011] Furthermore, the lightning protector includes a lightning protector body and a plurality of connection holes, and the plurality of connection holes are blind holes arranged around the end of the lightning protector body.

[0012] The beneficial effect of adopting the above further solution is that the connecting hole is conducive to cooperating with the first connecting column to adapt and connect the tool body to the lightning protector, and transmit the power on the crank mechanism to the lightning protector.

[0013] Furthermore, the plurality of first connecting pillars are disposed in the plurality of connecting holes in a one-to-one correspondence.

[0014] The beneficial effect of adopting the above further solution is that it is conducive to adapting and connecting the tool body to the lightning protector, thereby transmitting the power on the crank mechanism to the lightning protector, driving the lightning protector to be rotated out and replaced.

[0015] Furthermore, the second connecting column is a prismatic structure coaxially arranged on the closed end of the tool body.

[0016] The beneficial effect of adopting the above further solution is that the prismatic structure is conducive to increasing the friction between the second connecting column and the crank mechanism, avoiding slipping during the rotation process and affecting the transmission of power.

[0017] Furthermore, the crank mechanism includes: a hand crank, a transmission arm, a sleeve and a one-way ratchet device; the hand crank and the sleeve are arranged at both ends of the transmission arm in a one-to-one correspondence, and the one-way ratchet device is arranged at the connection between the sleeve and the transmission arm.

[0018] The beneficial effect of adopting the above further solution is that the transmission arm is conducive to transmitting the rotation of the hand crank to the one-way ratchet device and the sleeve, so that the sleeve drives the second connecting column on the replacement tool to rotate, and then drives the lightning protector to be rotated out and replaced.

[0019] Furthermore, the sleeve is a tubular structure provided with a prismatic inner wall, and the sleeve is adapted to be mounted on the second connecting column.

[0020] The beneficial effect of adopting the above further solution is that the prismatic inner wall of the sleeve is matched with the prismatic outer wall of the second connecting column, which is beneficial to increase the friction between the sleeve and the second connecting column, facilitates power transmission, and avoids slipping.

[0021] Furthermore, the one-way ratchet device includes: a ratchet body, a ratchet connecting column, a plurality of one-way abutment blocks and a plurality of hinge shafts; the ratchet connecting column is coaxially arranged in the middle of the ratchet body, one end of the one-way abutment block is hinged to the hinge shaft, and the other end abuts against the ratchet body, and the hinge shaft is installed on the transmission arm.

[0022] The beneficial effect of adopting the above-mentioned further scheme is that when the ratchet body rotates in a single direction, the one-way abutment block can be moved, so that one end of the one-way abutment block can rotate around the hinge axis within a certain range. At the same time, the one-way abutment block can support the ratchet body when the ratchet body rotates in the opposite direction, preventing the ratchet body from rotating in the opposite direction, thereby realizing the one-way rotation of the crank mechanism.

[0023] Furthermore, a transmission arm connecting block is provided inside the transmission arm, and one end of the transmission arm connecting block is fixedly connected to the end of the ratchet connecting column.

[0024] The beneficial effect of adopting the above further solution is that the transmission arm connecting block is conducive to driving the ratchet connecting column to rotate through the transmitted power, thereby driving the ratchet body to rotate.

[0025] Furthermore, a hand crank connecting column is provided inside the hand crank, and an end portion of the hand crank connecting column is fixedly connected to the other end of the transmission arm connecting block.

[0026] The beneficial effect of adopting the above further solution is that the hand crank connecting column is conducive to synchronous rotation when the operator rotates the hand crank, thereby transmitting the power of the hand crank rotation to the transmission arm connecting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the working state of the lightning protector replacement tool provided in an embodiment of the present utility model;

[0028] Figure 2 A schematic diagram of the structure of the lightning protector replacement tool provided in an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the structure of a lightning protector provided in an embodiment of the present utility model;

[0030] Figure 4 A schematic diagram of the crank mechanism structure provided in an embodiment of the present utility model;

[0031] Figure 5 This is a schematic structural diagram of a one-way ratchet device provided in an embodiment of the utility model.

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 1. Tool body; 2. First connecting column; 3. Second connecting column; 4. Crank mechanism; 5. Lightning protector; 41. Hand crank; 42. Transmission arm; 43. Sleeve; 44. One-way ratchet device; 51. Lightning protector body; 52. Connecting hole; 411. Hand crank connecting column; 421. Transmission arm connecting block; 441. Ratchet body; 442. Ratchet connecting column; 443. One-way abutment block; 444. Articulated shaft. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] like Figures 1 to 5 As shown, a lightning protector replacement tool comprises: a tool body 1, a plurality of first connecting columns 2 and a second connecting column 3; the tool body 1 is a tubular structure adapted to the size of the lightning protector 5 and closed at one end, a plurality of the first connecting columns 2 are arranged around the open end of the tool body 1 and are adapted to be connected with the lightning protector 5, the second connecting column 3 is arranged at the closed end of the tool body 1 and is adapted to be connected with the crank mechanism 4, and the tool body 1, the first connecting columns 2 and the second connecting columns 3 are driven to rotate by rotating the crank mechanism 4, thereby driving the lightning protector 5 to be rotated out and replaced.

[0036] Among them, it should be noted that, in the technical solution of the present invention, the replacement tool of the lightning protector can be obtained by modifying the discarded lightning protector: first, the components inside the discarded lightning protector are disassembled by using special tools, and attention is paid to other related parts of the lightning protector during disassembly to prevent damage and avoid affecting subsequent use. The purpose of disassembling components is to create space for subsequent tooling use. The lightning protector after the components are disassembled is the tooling body 1; since there is a blind hole in the structure of the lightning protector itself, that is, the connecting hole 52, the second step is to install a stud that matches the size of the connecting hole 52 on the end wall of the open end of the tooling body 1, that is, the first connecting column 2. The stud should be made of a material with high hardness, corrosion resistance, and no rust. The length needs to be selected to be twice the depth of the connecting hole 52, and the stud needs to be firmly fixed to the blind hole at the end of the tool body 1, so that the stud is more firm and not loose after installation, and the tool can be perfectly adapted to the lightning protector during use, thereby improving the convenience and accuracy of use; the third step is to add an overlapping double nut design to the closed end of the tool body 1, that is, the second connecting column 3, and the double nut needs to be fixedly connected to the tool body 1 to prevent slipping during disassembly, so as to increase the contact area between the lightning protector and the replacement tool, so that the crank mechanism 4 and the double nut can be better adapted during disassembly, reducing the difficulty of disassembly, making it easier and more labor-saving, and not prone to slipping. The operation is also more convenient and the disassembly process will be smoother.

[0037] The beneficial effects of the present invention are: adapting and connecting multiple first connecting columns on the tool body to the lightning protector, and adapting and connecting the second connecting column to the crank mechanism, which is conducive to transmitting the power when the crank mechanism rotates to the lightning protector through the tool body, the first connecting column and the second connecting column, so that the lightning protector rotates, and finally realizes the lightning protector being rotated out and rotated in after replacement, thereby improving the replacement efficiency of the lightning protector, reducing the work difficulty, reducing the time cost and the wind turbine downtime, and increasing the power generation income.

[0038] Preferably, Figure 2 As shown, the first connecting column 2 is fixedly arranged on the end wall of the open end of the tool body 1.

[0039] The beneficial effect of adopting the above preferred solution is that it is conducive to adaptively connecting the tool body and the lightning protector through the first connecting column.

[0040] Preferably, Figure 3 As shown, the lightning protector 5 includes a lightning protector body 51 and a plurality of connection holes 52 . The plurality of connection holes 52 are blind holes arranged around the end of the lightning protector body 51 .

[0041] The beneficial effect of adopting the above preferred solution is that the connecting hole is conducive to cooperating with the first connecting column to adapt and connect the tool body to the lightning protector, and transmit the power on the crank mechanism to the lightning protector.

[0042] Preferably, the plurality of first connecting pillars 2 are disposed in the plurality of connecting holes 52 in a one-to-one correspondence.

[0043] The beneficial effect of adopting the above preferred solution is that it is conducive to adapting and connecting the tool body with the lightning protector, thereby transmitting the power on the crank mechanism to the lightning protector, driving the lightning protector to be rotated out and replaced.

[0044] Preferably, Figure 3 As shown, the second connecting column 3 is a prismatic structure coaxially arranged on the closed end of the tool body 1.

[0045] The beneficial effect of adopting the above preferred solution is that the prismatic structure is conducive to increasing the friction between the second connecting column and the crank mechanism, avoiding slipping during the rotation process and affecting the transmission of power.

[0046] Preferably, Figure 4 and Figure 5 As shown, the crank mechanism 4 includes: a hand crank 41, a transmission arm 42, a sleeve 43 and a one-way ratchet device 44; the hand crank 41 and the sleeve 43 are arranged at both ends of the transmission arm 42 in a one-to-one correspondence, and the one-way ratchet device 44 is arranged at the connection between the sleeve 43 and the transmission arm 42.

[0047] The beneficial effect of adopting the above preferred solution is that the transmission arm is conducive to transmitting the rotation of the hand crank to the one-way ratchet device and the sleeve, so that the sleeve drives the second connecting column on the replacement tool to rotate, and then drives the lightning protector to be rotated out and replaced.

[0048] Preferably, Figure 4 As shown, the sleeve 43 is a tubular structure provided with a prismatic inner wall, and the sleeve 43 is adapted to be mounted on the second connecting column 3 .

[0049] The beneficial effect of adopting the above preferred solution is that the prismatic inner wall of the sleeve is matched with the prismatic outer wall of the second connecting column, which is beneficial to increase the friction between the sleeve and the second connecting column, facilitates power transmission, and avoids slipping.

[0050] Preferably, Figure 4As shown, the one-way ratchet device 44 includes: a ratchet body 441, a ratchet connecting column 442, a plurality of one-way abutment blocks 443 and a plurality of hinge shafts 444; the ratchet connecting column 442 is coaxially arranged in the middle of the ratchet body 441, one end of the one-way abutment block 443 is hinged to the hinge shaft 444, and the other end abuts against the ratchet body 441, and the hinge shaft 444 is installed on the transmission arm 42.

[0051] It should be noted that in the technical solution of the present invention, a connecting rod (not shown in the figure) is coaxially arranged on the ratchet body 441 and is adapted to or fixedly connected to the prismatic inner wall of the sleeve 43. This connecting rod can be another component, or it can be a structure in which the ratchet connecting column 442 extends and passes through the ratchet body 441, thereby driving the sleeve 43 to rotate when the ratchet body 441 rotates.

[0052] The beneficial effect of adopting the above-mentioned preferred scheme is that when the ratchet body rotates in a single direction, the one-way abutment block can be moved, so that one end of the one-way abutment block rotates around the hinge axis within a certain range. At the same time, the one-way abutment block can support the ratchet body when the ratchet body rotates in the opposite direction, preventing the ratchet body from rotating in the opposite direction, thereby realizing the one-way rotation of the crank mechanism.

[0053] Preferably, Figure 5 As shown, a transmission arm connecting block 421 is provided inside the transmission arm 42 , and one end of the transmission arm connecting block 421 is fixedly connected to the end of the ratchet connecting column 442 .

[0054] The beneficial effect of adopting the above preferred solution is that the transmission arm connecting block is conducive to driving the ratchet connecting column to rotate through the transmitted power, thereby driving the ratchet body to rotate.

[0055] Preferably, Figure 5 As shown, a hand crank connecting column 411 is provided inside the hand crank 41 , and an end of the hand crank connecting column 411 is fixedly connected to the other end of the transmission arm connecting block 421 .

[0056] The beneficial effect of adopting the above preferred solution is that the hand crank connecting column is conducive to synchronous rotation when the operator rotates the hand crank, thereby transmitting the power of the hand crank rotation to the transmission arm connecting block.

[0057] The working process of the present invention is described below by an embodiment:

[0058] like Figures 1 to 5As shown, first, multiple first connecting columns 2 are adapted and placed into multiple connecting holes 52 one by one, and then the sleeve 43 is adapted and mounted on the second connecting column 3. Then, the hand crank 41 is rotated. Under the transmission action of the hand crank connecting column 411, the transmission arm connecting block 421 and the ratchet connecting column 442, the ratchet body 441 rotates unidirectionally, and then the sleeve 43 drives the second connecting column 3 to rotate unidirectionally. Under the transmission action of the tooling body 1 and the first connecting column 2, the lightning protector 5 rotates unidirectionally and finally rotates out.

[0059] After replacing the new lightning protector 5, reverse the above steps and turn the new lightning protector 5 in and lock it.

[0060] The utility model successfully designs a practical replacement tool by cleverly modifying the abandoned lightning protector, which not only realizes the reuse of resources, but also brings great convenience to related work, reduces work difficulty and time cost, and uses this modified tool to improve work efficiency while ensuring work quality.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0063] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0064] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0066] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tool for replacing a lightning protector, characterized in that: include: A tool body (1), a plurality of first connecting columns (2) and a second connecting column (3); the tool body (1) is a tubular structure that is adapted to the size of the lightning protector (5) and is closed at one end; a plurality of the first connecting columns (2) are arranged around the open end of the tool body (1) and are adapted to be connected with the lightning protector (5); the second connecting column (3) is arranged at the closed end of the tool body (1) and is adapted to be connected with a crank mechanism (4); by rotating the crank mechanism (4), the tool body (1), the first connecting columns (2) and the second connecting columns (3) are driven to rotate, thereby driving the lightning protector (5) to be rotated out and replaced.

2. The lightning protector replacement tool according to claim 1, characterized in that: The first connecting column (2) is fixedly arranged on the end wall of the open end of the tool body (1).

3. The lightning protector replacement tool according to claim 2, characterized in that: The lightning protector (5) comprises a lightning protector body (51) and a plurality of connection holes (52), wherein the plurality of connection holes (52) are blind holes arranged around the end of the lightning protector body (51).

4. The lightning protector replacement tool according to claim 3, characterized in that: The plurality of first connecting columns (2) are arranged in a one-to-one correspondence within the plurality of connecting holes (52).

5. The lightning protector replacement tool according to claim 1, characterized in that: The second connecting column (3) is a prismatic structure coaxially arranged on the closed end of the tool body (1).

6. The lightning protector replacement tool according to claim 5, characterized in that: The crank mechanism (4) comprises: a hand crank (41), a transmission arm (42), a sleeve (43) and a one-way ratchet device (44); the hand crank (41) and the sleeve (43) are arranged at both ends of the transmission arm (42) in a one-to-one correspondence, and the one-way ratchet device (44) is arranged at the connection between the sleeve (43) and the transmission arm (42).

7. The lightning protector replacement tool according to claim 6, characterized in that: The sleeve (43) is a tubular structure provided with a prismatic inner wall, and the sleeve (43) is adapted to be mounted on the second connecting column (3).

8. The lightning protector replacement tool according to claim 6, characterized in that: The one-way ratchet device (44) comprises: a ratchet body (441), a ratchet connecting column (442), a plurality of one-way abutting blocks (443) and a plurality of hinge shafts (444); the ratchet connecting column (442) is coaxially arranged in the middle of the ratchet body (441); one end of the one-way abutting block (443) is hinged to the hinge shaft (444), and the other end abuts against the ratchet body (441); and the hinge shaft (444) is mounted on the transmission arm (42).

9. The lightning protector replacement tool according to claim 8, characterized in that: A transmission arm connecting block (421) is provided inside the transmission arm (42), and one end of the transmission arm connecting block (421) is fixedly connected to the end of the ratchet connecting column (442).

10. The lightning protector replacement tool according to claim 9, characterized in that: A hand crank connecting column (411) is provided inside the hand crank (41), and an end of the hand crank connecting column (411) is fixedly connected to the other end of the transmission arm connecting block (421).

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