Tool for replacing frequency converter in cabinet

Abstract

The utility model discloses a tool for replacing a frequency converter in a cabinet, which comprises a first U-shaped channel steel with an upward opening as a support leg; the second U-shaped channel steel is longitudinally arranged on a web plate in the middle of the first U-shaped channel steel and serves as a supporting leg; first through holes are longitudinally and uniformly formed in a web plate of the second U-shaped channel steel; second through holes matched with the first through holes are evenly formed in a web of the lifting U-shaped steel channel in the longitudinal direction, a notch is formed in the top of the web of the lifting U-shaped steel channel, and a falling protector is hung on one side of the lifting U-shaped steel channel. The lifting U-shaped channel steel is fixed on the inner side of a web of the second U-shaped channel steel through a bolt; the cross beam is transversely connected with the second U-shaped channel steel on the two sides of the cabinet body; and the suspension beam is transversely erected in the notches of the lifting U-shaped channel steel on the two sides of the cabinet body. According to the utility model, the problems of low working efficiency and large construction risk when the large-scale frequency converter is replaced at present can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance tooling, and more specifically, to a tooling for replacing an in-cabinet frequency converter. Background Art

[0002] Since the frequency converters currently used in the steel industry are large in volume and heavy in weight, and the working environment inside the power distribution cabinet is narrow, mechanical injuries and falling injuries are extremely likely to occur during manual disassembly, installation, and handling; moreover, if the frequency converter falls during the removal and installation processes, it will also cause damage to the surrounding electrical cabinets and bring unpredictable work safety accidents. In addition, existing lifting devices are often not suitable for hoisting equipment at different heights in narrow spaces and cannot prevent accidental falling accidents of the hoisting equipment.

[0003] Therefore, in order to ensure the work safety of the operators themselves and improve work efficiency, and be able to efficiently disassemble and assemble the frequency converter, it is necessary to develop a special tooling for replacing the in-cabinet frequency converter. Summary of the Utility Model

[0004] Due to the above-mentioned defects in the prior art, the utility model provides a tooling for replacing an in-cabinet frequency converter to solve the problems of low work efficiency and high construction risks during the replacement of large-scale frequency converters at present.

[0005] To achieve the above object, the utility model provides a tooling for replacing an in-cabinet frequency converter, which is characterized by comprising:

[0006] A first U-shaped steel channel with an upward opening, placed on the ground on both sides of the cabinet as a support leg;

[0007] A second U-shaped steel channel longitudinally arranged on the webs in the middle of the first U-shaped steel channels on both sides of the cabinet as a support leg; a first through hole is longitudinally and evenly opened on the web of the second U-shaped steel channel;

[0008] A lifting U-shaped steel channel with a second through hole longitudinally and evenly opened on its web, which matches the first through hole, and a notch is opened at the top of its web, and an anti-falling device is hung on one side; the lifting U-shaped steel channel is fixed to the inner side of the web of the second U-shaped steel channel by inserting pins through the first through hole and the second through hole;

[0009] A cross beam transversely connecting the second U-shaped steel channels on both sides of the cabinet;

[0010] A suspension beam transversely erected in the notches of the lifting U-shaped steel channels on both sides of the cabinet; the elevation of the suspension beam is greater than the total height of the cabinet and the frequency converter.

[0011] When using the tooling, place the tooling on both sides of the cabinet where the frequency converter needs to be replaced. Remove the upper cover of the cabinet. Hang the chain block on the suspension beam. The chain block can be adjusted freely on the suspension beam according to the position of the lifting point of the frequency converter to achieve the purpose of vertical lifting. Hang the lifting belt, traction rope and anti-falling device hanging rope of the chain block on the frequency converter. After lifting to a certain height, pull out the frequency converter to the outside of the cabinet through the traction rope and place it. Then, use the chain block in the same way to hoist the new frequency converter back into the cabinet to complete the replacement and installation work.

[0012] Furthermore, the length of the lifting U-shaped steel channel extending out of the second U-shaped steel channel is not greater than 1 / 2 of the length of the second U-shaped steel channel to further ensure the stability of the frame.

[0013] Furthermore, the length of the first U-shaped steel channel is not less than 4 times the width of the second U-shaped steel channel to further ensure the stability of the frame.

[0014] Furthermore, the cross beam is a U-shaped steel channel or an angle steel, and the material has strong selectivity.

[0015] Furthermore, the suspension beam is a steel pipe, and rubber limit rings are arranged at both ends to prevent the suspension beam from sliding out of the tooling from left and right and causing danger.

[0016] Furthermore, a snap-fastener lock is arranged at the opening of the notch to prevent the suspension beam from sliding out of the tooling from the upper part and causing danger.

[0017] Compared with the prior art, the above-mentioned utility model has the following advantages or beneficial effects:

[0018] (1) After using the utility model, the personnel only need to stand on the side of the frequency converter cabinet and can easily lift the frequency converter out of the cabinet through the chain block, and then use the traction rope to move and place the frequency converter on the ground. While saving manpower, it also ensures the safety of the operators.

[0019] (2) The utility model uses common U-shaped steel channels to build a hanging frame body, which can not only adapt to the replacement of frequency converters of different heights, but also facilitate the installation of common anti-falling devices to prevent safety accidents of frequency converter falling. The device has a lower production cost and is convenient, safe and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, the utility model and its features, shapes and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on showing the gist of the utility model.

[0021] Figure 1 It is the front view of the tooling for replacing the frequency converter in the cabinet according to an embodiment of the utility model;

[0022] Figure 2 The top view of the tooling for replacing the frequency converter inside the cabinet according to an embodiment of the present utility model;

[0023] Figure 3 The side view of the tooling for replacing the frequency converter inside the cabinet according to an embodiment of the present utility model;

[0024] Wherein, 1. The first U-shaped steel channel; 2. The second U-shaped steel channel; 21. The first through hole; 31. The second through hole; 32. The notch; 33. The anti-falling device; 3. The lifting U-shaped steel channel; 4. The cross beam; 5. The suspension beam; 51. The rubber limit ring. Specific embodiments

[0025] The following further describes the structure in the present utility model in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present utility model. For the execution sequence of actions, steps, etc. in the device and method shown in the claims, description, and drawings of the present utility model, as long as there is no specific explicit sequence limitation, and as long as the output of the previous process is not used in the subsequent process, it can be implemented in any order.

[0026] It should also be noted that: in the description of the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present utility model.

[0027] It should be understood that the terms "first" and "second" described in the present application are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features.

[0028] Next, the technical solutions of the present utility model will be described in detail with specific embodiments and examples.

[0029] Embodiment

[0030] Refer to Figures 1 to 3 , this embodiment relates to the tooling for replacing the frequency converter inside the cabinet, including the first U-shaped steel channel 1, the second U-shaped steel channel 2, the lifting U-shaped steel channel 3, the cross beam 4, and the suspension beam 5.

[0031] The first U-shaped steel channel 1 has an upward opening and is placed on the ground on both sides of the cabinet as a support foot.

[0032] The second U-shaped steel channel 2 is longitudinally arranged on the webs in the middle of the first U-shaped steel channels 1 on both sides of the cabinet as a support leg; the first through holes 21 are longitudinally and evenly opened on the web of the second U-shaped steel channel 2.

[0033] Longitudinal and evenly spaced second through holes 31 matching the first through holes 21 are formed in the web of the lifting U-shaped steel channel 3. A notch 32 is formed at the top of its web, and a falling arrestor 33 is hung on one side. The lifting U-shaped steel channel 3 is fixed to the inner side of the web of the second U-shaped steel channel 2 by inserting pins through the first through holes 21 and the second through holes 31.

[0034] The cross beam 4 is transversely connected to the second U-shaped steel channels 2 on both sides of the cabinet body.

[0035] The suspension beam 5 is transversely arranged in the notch 32 of the lifting U-shaped steel channels 3 on both sides of the cabinet body; the elevation of the suspension beam 5 is greater than the total height of the cabinet body and the frequency converter.

[0036] As a preferred embodiment, the length of the lifting U-shaped steel channel 3 extending out of the second U-shaped steel channel 2 is not greater than 1 / 2 of the length of the second U-shaped steel channel 2, so as to further ensure the stability of the frame.

[0037] As a preferred embodiment, the length of the first U-shaped steel channel 1 is not less than 4 times the width of the second U-shaped steel channel 2, so as to further ensure the stability of the frame.

[0038] More specifically, the length of the first U-shaped steel channel 1 is 400 mm, the width is 80 mm, and the height is 50 mm; the length of the second U-shaped steel channel 2 is 350 mm, the width is 80 mm, and the height is 50 mm; the length of the lifting U-shaped steel channel 3 is 300 mm, and the width is 63 mm; the cross beam 4 is a U-shaped steel channel or an angle steel, and the material has strong selectivity. The suspension beam 5 is a steel pipe with a diameter of 30 mm, and rubber limit rings 51 are arranged at both ends thereof to prevent the suspension beam from sliding out of the tooling from left and right, causing danger.

[0039] As a preferred embodiment, a snap-fastener type lock (not shown in the figure) is arranged at the opening of the notch 32 to prevent the suspension beam from sliding out of the tooling from above, causing danger.

[0040] The usage method of the above tooling is as follows: Place the tooling on both sides of the cabinet body where the frequency converter needs to be replaced, remove the upper cover of the cabinet body, hang the chain block on the suspension beam, and the chain block can be adjusted arbitrarily on the suspension beam according to the position of the lifting point of the frequency converter to achieve the purpose of vertical hoisting. Hang the hoisting belt, traction rope and falling arrestor hanging rope of the chain block on the frequency converter. After lifting to a certain height, pull out the frequency converter to the outside of the cabinet through the traction rope for placement. Then, use the chain block in the same way to hoist the new frequency converter back into the cabinet to complete the replacement and installation work.

[0041] As can be seen from the above description, the tooling of the present utility model can shorten the replacement time of the frequency converter, not only improve the work efficiency, but also greatly reduce the danger coefficient of construction, and ensure the smooth operation of the equipment and production.

[0042] In summary, the present utility model provides a tooling for replacing an in-cabinet frequency converter, which includes: a first U-shaped channel steel with an upward opening serving as a support leg; a second U-shaped channel steel longitudinally arranged on the web at the middle of the first U-shaped channel steel and serving as a support leg; a first through hole is longitudinally and evenly opened on the web of the second U-shaped channel steel; a lifting U-shaped channel steel, on whose web a second through hole matching the first through hole is longitudinally and evenly opened, a notch is opened at the top of its web, and a fall arrester is hung on one side; the lifting U-shaped channel steel is fixed to the inner side of the web of the second U-shaped channel steel by a bolt; a cross beam transversely connecting the second U-shaped channel steels on both sides of the cabinet body; a suspension beam transversely arranged in the notches of the lifting U-shaped channel steels on both sides of the cabinet body. The present utility model can solve the problems of low working efficiency and high construction risk during the replacement of large-scale frequency converters at present.

[0043] Those skilled in the art should understand that those skilled in the art can realize variation examples in combination with the prior art and the above embodiments, which will not be elaborated here. Such variation examples do not affect the substantial content of the present utility model and will not be elaborated here. The standard parts used can be purchased from the market (for example, the fall arrester can adopt a commercially available speed difference fall arrester, and the parts of the buckle-type lock can also be obtained through commercial channels), and can also be customized according to the records of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, whose structures and principles can all be learned through technical manuals or obtained through conventional experimental methods by those skilled in the art.

[0044] The preferred embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific implementation manners. The equipment and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art, without departing from the scope of the technical solution of the present utility model, can make many possible changes and modifications to the technical solution of the present utility model by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes, which does not affect the substantial content of the present utility model. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A tooling for replacing the frequency converter inside the cabinet, characterized in that Including: The first U-shaped channel steel (1), with the opening facing upward, is placed on the ground on both sides of the cabinet body and serves as a support foot; The second U-shaped channel steel (2) is longitudinally arranged on the web of the middle part of the first U-shaped channel steel (1) on both sides of the cabinet body and serves as a support leg; first through holes (21) are longitudinally and evenly opened on the web of the second U-shaped channel steel (2); The lifting U-shaped channel steel (3), on whose web second through holes (31) matching the first through holes (21) are longitudinally and evenly opened, has a notch (32) opened at the top of its web, and a fall arrester (33) is hung on one side; the lifting U-shaped channel steel (3) is fixed to the inner side of the web of the second U-shaped channel steel (2) by inserting pins through the first through holes (21) and the second through holes (31); The cross beam (4) is transversely connected to the second U-shaped channel steels (2) on both sides of the cabinet body; The suspension beam (5) is transversely erected in the notch (32) of the lifting U-shaped channel steels (3) on both sides of the cabinet body; the elevation of the suspension beam (5) is greater than the total height of the cabinet body and the frequency converter.

2. The tooling for replacing the inverter inside the cabinet according to claim 1, characterized in that, The length of the lifting U-shaped channel steel (3) extending out of the second U-shaped channel steel (2) is not greater than 1 / 2 of the length of the second U-shaped channel steel (2).

3. The tooling for replacing the frequency converter inside the cabinet according to claim 1 or 2, characterized in that The length of the first U-shaped channel steel (1) is not less than 4 times the width of the second U-shaped channel steel (2).

4. The tooling for replacing the frequency converter inside the cabinet according to claim 1, characterized in that The cross beam (4) is a U-shaped channel steel or an angle steel.

5. The tooling for replacing the frequency converter inside the cabinet according to claim 1, wherein, The suspension beam (5) is a steel pipe, and rubber limit rings (51) are arranged at both ends thereof.

6. A tooling for replacing the inverter inside the cabinet according to claim 1 or 5, characterized in that, A snap-type lock is arranged at the opening of the notch (32).

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