CN215419494U - Weight-adjustable counterweight device for tubular bus - Google Patents
Weight-adjustable counterweight device for tubular bus Download PDFInfo
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- CN215419494U CN215419494U CN202121775056.6U CN202121775056U CN215419494U CN 215419494 U CN215419494 U CN 215419494U CN 202121775056 U CN202121775056 U CN 202121775056U CN 215419494 U CN215419494 U CN 215419494U
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- weight
- connecting rod
- tubular
- tubular busbar
- side wall
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Abstract
The utility model provides a weight-adjustable counterweight device for a tubular busbar, which comprises: one end of the connecting rod is provided with a stop block, and the other end of the connecting rod is provided with a thread; the weight sheets are arranged on the connecting rod; the end cover is arranged at one end, far away from the stop block, of the connecting rod, is locked on the connecting rod through a nut and is fixedly connected with the tubular bus; the connecting rod, the weight piece and one part of the end cover are arranged in an inner hole of the tubular bus, and the other part of the end cover covers the end part of the tubular bus. Simple structure, simple to operate can adapt to the amount of deflection that tubular busbar installation produced, has higher flexibility and suitability.
Description
Technical Field
The utility model relates to the technical field of power transformation hardware fittings, in particular to a weight-adjustable counterweight device for a tubular bus.
Background
At present, the suspension type tubular busbar is already used as a standard busbar form for outdoor distribution equipment of 220kV-750kV transformer substations universally designed by national grid companies. Meanwhile, a plurality of substation sites are located in a high-altitude area by combining system drop points, due to the requirement of the electrified distance, the interval width of the distribution device is greatly increased on the basis of the original general design, the arrangement form of a large-span suspended tubular bus is generated, the deflection of the tubular bus is greatly increased, the deflection of the tubular bus is overlarge, and the support tubular bus causes the abnormal work of a sliding fitting during normal expansion with heat and contraction with cold, so that the mid-span deflection is required to be not more than 0.5D to 1.0D (D is the outer diameter of the tubular bus). On one hand, for the suspension type tubular bus, two ends of the tubular bus are suspended by hardware fittings and fixedly connected, although the problem of hardware fitting sliding disorder is solved, the deflection of the tubular bus is too large, if a vertical telescopic isolating switch is adopted on the bus side, the offset of a static contact of the isolating switch is too large, and the isolating switch cannot be normally opened and closed; on the other hand, the live distance of the suspension type tubular bus to the electrical equipment positioned below the suspension type tubular bus is shortened, the suspension type tubular bus is bent too obviously, and the engineering appearance is influenced. Therefore, the control requirement of the current owner on the deflection of the suspension type tubular busbar is consistent with that of the support type tubular busbar and is not more than 1.0D (D is the outer diameter of the tubular busbar).
Therefore, in order to reduce the deflection of the tubular busbar during large-span installation, a counterweight device is usually installed at the end part of the tubular busbar, and at present, if the deflection generated by the installation of the tubular busbar is more than 1.0D (D is the outer diameter of the tubular busbar), the tubular busbar is counterweighted by theoretical calculation, the counterweight is a fixed value and cannot be adjusted, and when the deflection is too much different, the control requirement of the deflection cannot be met.
Therefore, there is a need to develop a weight-adjustable counterweight device for tubular bus, which has a simple structure, is convenient to install, can adapt to the deflection generated by the installation of the tubular bus, and has higher flexibility and applicability.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving one of the technical problems of the prior art or the related art.
The utility model provides a weight-adjustable counterweight device for a tubular busbar.
In view of the above, the present invention provides a weight-adjustable counterweight device for a tubular busbar, including:
one end of the connecting rod is provided with a stop block, and the other end of the connecting rod is provided with a thread;
the weight sheets are arranged on the connecting rod;
the end cover is arranged at one end, far away from the stop block, of the connecting rod, is locked on the connecting rod through a nut and is fixedly connected with the tubular bus;
the connecting rod, the weight piece and one part of the end cover are arranged in an inner hole of the tubular bus, and the other part of the end cover covers the end part of the tubular bus.
Further, the weight-adjustable counterweight device further comprises:
the cushion blocks are arranged between the weight pieces and the stop blocks, and the thickness of the cushion blocks is the same as that of the weight pieces.
Furthermore, the weight piece and the cushion block are in clearance fit with the connecting rod.
Further, the end cover comprises a bottom wall and a side wall which are connected in sequence, the bottom wall is cylindrical, the side wall is circular, the outer diameter of the bottom wall and the outer diameter of the side wall are matched with the inner diameter of the tubular bus, a connecting hole is formed in the center of the bottom wall, and the connecting rod penetrates through the connecting hole.
Further, the end cover further comprises an outer edge, the outer edge is annular, the outer diameter of the outer edge is equal to that of the tubular bus, and the inner diameter of the outer edge is matched with that of the side wall.
Further, be equipped with the mounting hole on the lateral wall, the lateral wall pass through fastening bolt with cast generating line fixed connection, include at least three mounting hole on the lateral wall.
Further, a flat washer and a spring washer are arranged between the nut and the end cover.
The technical scheme provided by the utility model can have the following beneficial effects:
the installation of the adjustable counterweight device can reduce the deflection generated by the tubular bus when the tubular bus is installed in a large span, ensure the effective connection of hardware fittings installed on the tubular bus and associated equipment, and ensure the insulation distance between the tubular bus and the hardware fittings installed on the tubular bus and equipment below the tubular bus; the number of the weight pieces on the connecting rod is changed, so that the device can adapt to different deflection generated during installation of the tubular bus, can meet the control requirement of deflection, and has higher flexibility and applicability.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 shows a schematic view of a weight adjustable counterweight device for tubular bus bars according to one embodiment of the utility model;
FIG. 2 shows a schematic view of a connecting rod according to one embodiment of the utility model;
FIG. 3a shows a front view of a weight plate according to one embodiment of the utility model;
FIG. 3b shows a side view of a weight plate according to one embodiment of the utility model;
FIG. 4a shows a front view of an end cap according to one embodiment of the utility model;
FIG. 4b shows a side view of an end cap according to one embodiment of the utility model;
FIG. 5a shows a front view of a spacer according to one embodiment of the utility model;
FIG. 5b shows a side view of a spacer block according to one embodiment of the utility model.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5b is:
1 connecting rod, 101 stop block, 102 thread, 103 nut, 104 flat washer, 105 spring washer, 106 closed pin; 2 cushion blocks, 3 weight plates, 4 end covers, 401 bottom walls, 402 side walls, 403 outer edges, 404 connecting holes, 405 mounting holes, 5 fastening bolts and 6 tubular buses.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the utility model, as detailed in the appended claims.
Examples
Fig. 1 shows a schematic view of a weight-adjustable counterweight device for tubular busbars according to one embodiment of the utility model.
As shown in fig. 1, the present embodiment proposes a weight-adjustable counterweight device for a tubular busbar, including:
the connecting rod comprises a connecting rod 1, wherein a stop block 101 is arranged at one end of the connecting rod 1, and a thread 102 is arranged at the other end of the connecting rod 1;
the weight pieces 3 are arranged on the connecting rod 1;
the end cover 4 is arranged at one end, far away from the stop block 101, of the connecting rod 1, the end cover 4 is locked on the connecting rod 1 through a nut 103, and the end cover 4 is fixedly connected with the tubular bus 6;
wherein, the connecting rod 1, the weight piece 3 and one part of the end cover 4 are arranged in the inner hole of the tubular bus 6, and the other part of the end cover 4 covers the end part of the tubular bus 6.
The installation of the adjustable counterweight device can reduce the deflection of the tubular busbar 6 generated when the tubular busbar 6 is installed in a large span, ensure the effective connection of hardware fittings installed on the tubular busbar 6 and associated equipment, ensure the insulation distance between the tubular busbar 6 and the hardware fittings installed on the tubular busbar 6 and equipment positioned below the tubular busbar 6, and improve the operation reliability of the tubular busbar 6 and the whole transformer substation; the number of the weight pieces 3 on the connecting rod 1 is changed, so that the device can adapt to different deflection generated when the tubular bus 6 is installed, can meet the control requirement of deflection, and has higher flexibility and applicability.
FIG. 3a shows a front view of a weight plate according to one embodiment of the utility model; figure 3b shows a side view of a weight plate according to one embodiment of the present invention.
As shown in FIG. 3a and FIG. 3b, the weight piece 3 is cylindrical and has a through hole in the middle for the connecting rod 1 to pass through, and the outer diameter of the weight piece 3 is in clearance fit with the inner diameter of the tubular bus 6.
Wherein, the cylindrical weight piece 3 is more convenient for install in 6 holes of cast generating line on the one hand, with 6 phase-matchs of cast generating line, improves the stability of the adjustable counter weight device of weight, and on the other hand also is more convenient for make processing.
FIG. 5a shows a front view of a spacer according to one embodiment of the utility model; FIG. 5b shows a side view of a spacer block according to one embodiment of the utility model.
As shown in fig. 5a and 5b, the weight-adjustable weighting device further includes:
and the cushion blocks 2 are arranged between the weight plate 3 and the stop block 101, and the thickness of the cushion blocks 2 is the same as that of the weight plate 3.
In a similar way, the cushion block 2 is cylindrical, a through hole is formed in the middle, the connecting rod 1 can conveniently penetrate through the cushion block 2, the cushion block 2 is used for being matched with the weight piece 3 and matched with the nut 103 to clamp the weight piece 3 tightly, the weight piece 3 is prevented from swinging on the rod of the connecting rod 1, and the stability of the weight-adjustable counterweight device is improved.
Specifically, the number of the installed weight pieces 3 is selected according to the size of deflection generated when the tubular bus 6 is installed, one weight piece 3 is additionally installed, one cushion block 2 is correspondingly removed, one weight piece 3 is reduced, one cushion block 2 is correspondingly additionally installed to adjust the size of the balance weight, and the balance weight adjusting range is 0kg to 150 kg.
Specifically, the theoretical counter weight of the tubular busbar 6 is calculated by a substation design unit according to a plurality of technical parameters such as the installation span of the tubular busbar, the weight and the position of hardware and wires installed on the tubular busbar 6, the icing and wind load of the tubular busbar 6, the parameters of the tubular busbar 6 and the like, and the number of the weight pieces 3 is calculated according to the theoretical counter weight. The quantity of the weight pieces 3 is installed according to the calculated value of the theoretical weight due to theoretical calculation, construction, installation errors and the like, the requirement that the maximum deflection of the tubular busbar 6 is not more than 1.0D (D is the outer diameter of the tubular busbar) cannot be met, and at the moment, the quantity of the weight pieces 3 needs to be further adjusted according to the deflection generated when the tubular busbar 6 is installed on site.
Furthermore, the weight plate 3 and the cushion block 2 are in clearance fit with the connecting rod 1.
The weight piece 3 and the cushion block 2 are in clearance fit with the connecting rod 1, and the dismounting speed can be improved.
FIG. 4a shows a front view of an end cap according to one embodiment of the utility model; figure 4b shows a side view of an end cap according to one embodiment of the present invention.
As shown in fig. 4a and 4b, the end cap 4 includes a bottom wall 401 and a side wall 402 which are connected in sequence, the bottom wall 401 is cylindrical, the side wall 402 is annular, the outer diameter of the bottom wall 401 and the outer diameter of the side wall 402 match with the inner diameter of the tubular busbar 6, a connecting hole 404 is arranged at the center of the bottom wall 401, and the connecting rod 1 passes through the connecting hole 404.
The end cover 4 is arranged to facilitate fixing the weight-adjustable counterweight device inside the tubular bus 6.
Wherein, be equipped with mounting hole 405 on the lateral wall 402, lateral wall 402 passes through fastening bolt 5 and cast generating line 6 fixed connection, includes at least three mounting hole 405 on the lateral wall 405.
In this embodiment, three mounting holes 405 are used, and the end cover 4 is fixedly connected with the tubular bus 6 through the fastening bolt 5, so that the weight-adjustable counterweight device is prevented from rotating in the tubular bus 6.
Further, the end cap 4 further comprises an outer edge 403, the outer edge 403 is annular, the outer diameter of the outer edge 403 is equal to the outer diameter of the tubular busbar 6, and the inner diameter of the outer edge 403 is matched with the inner diameter of the side wall 402.
The installation positions of the end cover 4 and the tubular busbar 6 can be fixed by the arrangement of the outer edge 403, and the installation position of the adjustable counterweight device in the tubular busbar 6 is further ensured.
Fig. 2 shows a schematic view of a connecting rod according to one embodiment of the utility model.
As shown in fig. 2, a flat washer and a spring washer 105 are also provided 104 between the nut 103 and the end cap 4.
The spring washer 105 is used for providing an elastic force for the nut 103 after the nut 103 is screwed, the spring washer 105 abuts against the nut 103 to prevent the nut 103 from falling off easily, the friction force between the nut 103 and the flat washer 104 is increased, and the flat washer 104 is arranged to prevent the end cover 4 from being damaged and abraded after the nut 103 is screwed.
After the nut 103 is tightened, a closed pin 106 needs to be installed at a position of the connecting rod 1 close to the nut 103, and after the nut 103 is tightened, the closed pin 106 is inserted into a tail hole of the connecting rod 1 to prevent the nut 103 from falling off from the connecting rod 1 when loosening.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (7)
1. An adjustable weight device for a tubular busbar, comprising:
one end of the connecting rod is provided with a stop block, and the other end of the connecting rod is provided with a thread;
the weight sheets are arranged on the connecting rod;
the end cover is arranged at one end, far away from the stop block, of the connecting rod, is locked on the connecting rod through a nut and is fixedly connected with the tubular bus;
the connecting rod, the weight piece and one part of the end cover are arranged in an inner hole of the tubular bus, and the other part of the end cover covers the end part of the tubular bus.
2. The adjustable weight device for tubular busbar according to claim 1, further comprising:
the cushion blocks are arranged between the weight pieces and the stop blocks, and the thickness of the cushion blocks is the same as that of the weight pieces.
3. The weight-adjustable counterweight device for tubular busbar according to claim 2, wherein said weight plate and said spacer are in clearance fit with said connecting rod.
4. The weight-adjustable counterweight device for tubular busbar according to claim 1, wherein the end cap comprises a bottom wall and a side wall which are sequentially connected, the bottom wall is cylindrical, the side wall is annular, the outer diameter of the bottom wall and the outer diameter of the side wall are matched with the inner diameter of the tubular busbar, a connecting hole is formed in the center of the bottom wall, and the connecting rod penetrates through the connecting hole.
5. The weight-adjustable counterweight device for tubular busbar according to claim 4, wherein said end cap further comprises an outer rim, said outer rim is circular, the outer diameter of said outer rim is equal to the outer diameter of said tubular busbar, and the inner diameter of said outer rim is matched with the inner diameter of said side wall.
6. The tubular busbar weight adjustable counterweight device according to claim 4, wherein the side wall is provided with mounting holes, the side wall is fixedly connected with the tubular busbar through fastening bolts, and the side wall comprises at least three mounting holes.
7. The weight-adjustable counterweight device for tubular busbar according to any one of claims 1 to 6, wherein a flat washer and a spring washer are further provided between said nut and said end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775056.6U CN215419494U (en) | 2021-08-02 | 2021-08-02 | Weight-adjustable counterweight device for tubular bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775056.6U CN215419494U (en) | 2021-08-02 | 2021-08-02 | Weight-adjustable counterweight device for tubular bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215419494U true CN215419494U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121775056.6U Active CN215419494U (en) | 2021-08-02 | 2021-08-02 | Weight-adjustable counterweight device for tubular bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215419494U (en) |
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2021
- 2021-08-02 CN CN202121775056.6U patent/CN215419494U/en active Active
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