CN214849082U - Aluminum alloy transformer wire clamp - Google Patents
Aluminum alloy transformer wire clamp Download PDFInfo
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- CN214849082U CN214849082U CN202121253987.XU CN202121253987U CN214849082U CN 214849082 U CN214849082 U CN 214849082U CN 202121253987 U CN202121253987 U CN 202121253987U CN 214849082 U CN214849082 U CN 214849082U
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- locking bolt
- mounting holes
- bolt mounting
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Abstract
The utility model belongs to the technical field of transformer fastener technique and specifically relates to an aluminum alloy transformer fastener, body and locking bolt including the aluminum alloy preparation, the body left end is the internal thread hole of being connected with transformer binding post, and this internal thread hole axial is opened has an opening, the opening both ends respectively are provided with a slice otic placode, it has the locking bolt mounting hole to run through on two otic placodes, each group locking bolt mounting hole one end is the through-hole, and the other end is the screw hole, the radius of through-hole is greater than the radius of screw hole, the installation direction of two sets of adjacent locking bolt mounting holes is different; the right end of the body is provided with a right end daughter board connected with the outgoing line, and the right end daughter board is provided with at least one group of adjustable mounting holes. The utility model not only facilitates the installation of the locking bolt, but also the right-end daughter board can be connected with the outgoing line terminal boards with various specifications; the aluminum alloy is formed by adopting an aluminum alloy extrusion process, so that the problems that the welding part of the existing copper-aluminum transition wire clamp is easy to generate electrochemical corrosion to cause the fracture of the welding surface and the like are effectively solved.
Description
Technical Field
The utility model relates to a transformer fastener technical field, concretely relates to aluminum alloy transformer fastener.
Background
The electric power fitting is a common electric power device for overhead lines, has very important functions, the quality of the performance of the electric power fitting directly determines whether the lines can supply power safely and reliably, and the transformer wire clamp is a common electric power fitting and is widely applied to connection of a binding post and a lead (wire outlet terminal) of a transformer.
The traditional transformer wire clamp is usually made of cast iron, pure copper, pure aluminum or copper-aluminum transition materials, the transformer wire clamp made of the copper-aluminum transition materials is common, and the copper-aluminum transition problem can occur in the using process. In the prior art, in order to solve the problem of copper-aluminum transition, a copper-aluminum transition wire clamp is adopted, namely copper and aluminum are welded together, one end of the copper is connected with copper, the other end of the copper is connected with aluminum, but the welding quality is difficult to guarantee, so that the welding part is easy to break, and serious power grid accidents are easy to cause. In the existing transformer wire clamp, the pitch of the outgoing line terminal board cannot be adjusted, and the connection of the outgoing line terminal boards with different pitches cannot be met; in addition, the bolt head of the locking bolt is generally designed on the same side of the locking bolt connected with the transformer wiring terminal of the existing transformer wire clamp, and the method is very inconvenient to install because the installation gap left is small and a spanner is not easy to put in and rotate when the method is actually installed; it is necessary to develop a new transformer clamp.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an aluminum alloy transformer fastener to the easy cracked problem of taking place of welding position when solving the copper aluminium transition solves the inconvenient problem of locking bolt installation in current transformer fastener can't satisfy different pitch-row outlet terminal board and the transformer fastener simultaneously.
In order to solve the technical problem, the utility model provides an aluminum alloy transformer fastener: the transformer wiring terminal comprises a body and locking bolts, wherein the body is made of aluminum alloy, the left end of the body is provided with an internal thread hole connected with a transformer wiring terminal, an opening is formed in the axial direction of the internal thread hole, two ends of the opening are respectively provided with a lug plate, locking bolt mounting holes penetrate through the two lug plates, one end of each group of locking bolt mounting holes is a through hole, the other end of each group of locking bolt mounting holes is a threaded hole, the radius of the through hole is larger than that of the threaded hole, and the mounting directions of two adjacent groups of locking bolt mounting holes are different; the right end of the body is provided with a right end daughter board connected with a wire outlet, the angle between the right end daughter board and the upper surface of the body is larger than 90 degrees, and the right end daughter board is provided with at least one group of adjustable wire outlet terminal mounting holes, so that the connection of at least one group of wire outlet terminal boards can be met.
The aluminum alloy transformer wire clamp of the technical scheme has the following technical advantages:
1. the wire clamp in the technical scheme is made of aluminum alloy and has the characteristics of high strength, high conductivity, corrosion resistance and high reliability; the wire clamp is positioned at the electrode potential between copper and aluminum, can be connected with a copper wire and an aluminum wire, and can effectively avoid the problems that the quality of a welding part caused by copper-aluminum transition is difficult to guarantee and the welding part is easy to break.
2. The contact resistance is low, the conductivity is good, and the high conductivity can be still maintained even at high temperature; corrosion resistance, and stable operation can be realized after long-term outdoor use; high strength, not easy deformation and not easy loosening.
3. The extrusion molding processing mode is adopted for production, the production efficiency is high, and the production cost is low.
4. The locking nuts are installed in different directions, the condition that the spanner cannot advance and rotate due to small reserved installation gap is avoided, and the locking bolts are installed more conveniently.
5. The internal thread hole can be processed into different sizes, and is suitable for transformer wiring terminals with various specifications and sizes.
Preferably, the width of the right terminal plate is larger than that of the body, so that the connecting surface of the right terminal plate and the outlet terminal plate can be increased, and the contact resistance is reduced;
preferably, the thickness of the joint of the body and the right terminal plate is greater than that of the right terminal plate, so that the strength of the joint is improved; the body is provided with level and smooth fillet with right-hand member daughter board junction, can reduce local stress concentration.
Preferably, the outer surface of the main body is provided with an electroplating protective layer which is not easy to corrode.
Preferably, in order to prevent the large hysteresis loss of the bolt, which consumes a large amount of electric energy, a locking bolt made of non-magnetic stainless steel is provided.
Preferably, an opening with a width less than two fifths of the diameter of the internal thread hole is arranged, so that deformation of the lug plate is facilitated, and the contact area of the body and the transformer wiring terminal is ensured.
Preferably, smooth rounding corners are arranged on the upper side and the lower side of the lug plate, so that stress concentration can be reduced; the lug plate is provided with a through hole with the radius more than or equal to 1.1 times of the radius of the threaded hole, and a sufficient gap is reserved for the installation of the locking nut, so that the installation of the locking nut is facilitated.
Preferably, each group of mounting holes is provided with two, one of the mounting holes is a round hole and the other mounting hole is a strip-shaped hole, the pitch adjusting range of the strip-shaped hole and the round hole is 28-45 mm, and the outlet terminal board with various pitch specifications can be mounted.
Preferably, there is one mounting hole for each set, and the mounting holes are round holes.
Drawings
Fig. 1 is a schematic external view of embodiment 1 of the present invention;
fig. 2 is a front view of the body in embodiment 1 of the present invention;
fig. 3 is a left side view of the body in embodiment 1 of the present invention;
fig. 4 is a plan view of the body in embodiment 1 of the present invention;
fig. 5 is a schematic external view of embodiment 2 of the present invention;
fig. 6 is a front view of the body in embodiment 2 of the present invention;
fig. 7 is a left side view of the body in embodiment 2 of the present invention;
fig. 8 is a plan view of the body in embodiment 2 of the present invention;
fig. 9 is a schematic external view of embodiment 3 of the present invention;
fig. 10 is a left side view of the body in embodiment 3 of the present invention;
fig. 11 is a left side view of the body in embodiment 3 of the present invention;
fig. 12 is a plan view of the body according to embodiment 3 of the present invention.
The main reference symbols in the drawings are as follows:
1. a body; 2. locking the bolt; 3. an internally threaded bore; 4. an opening; 5. an ear plate; 6. locking bolt mounting holes; 7. a through hole; 8. a threaded hole; 9. a right end daughter board; 10. and an outlet terminal mounting hole.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, 5 and 9, the aluminum alloy transformer wire clamp comprises a body 1 made of aluminum alloy and locking bolts 2, the left end of the body 1 is provided with an internal threaded hole 3 connected with a transformer wiring terminal, the axial direction of the internal threaded hole 3 is provided with an opening 4, the width of the opening 4 is preferably two fifths of the diameter of the internal threaded hole, two ends of the opening 4 are respectively provided with a lug plate 5, the diameter of a through hole on the lug plate 5 is preferably 1.1 times of the diameter of a threaded part of the locking bolt, the locking bolt mounting holes 6 penetrate through the lug plates, one end of each group of locking bolt mounting holes 6 is provided with a through hole 7, the other end of each group of locking bolt mounting holes 6 is provided with a threaded hole 8, the diameter of the through hole 7 is larger than that of the threaded hole 8, and the mounting directions of two adjacent groups of locking bolt mounting holes 6 are different; the right end of the body 1 is provided with a right end daughter board 9 connected with a wire outlet, the angle between the right end daughter board 9 and the upper surface of the body 1 is larger than 90 degrees, and the right end daughter board 9 is provided with at least one group of wire outlet terminal mounting holes 10 which can meet the connection of at least one group of wire outlet terminal boards; the body 1 and the right sub-plate 9 are integrally extruded and molded; the width of the body 1 is smaller than that of the right sub-board 9, the thickness of the joint of the body 1 and the right sub-board 9 is larger than that of the right sub-board 9, the radius of a fillet at the joint of the body 1 and the right sub-board 9 is preferably 1.5 times of the thickness of the right sub-board 9, and the protective coating on the outer surface of the main body 1 is preferably a metal coating; the locking bolt 2 is preferably a stainless steel bolt that is magnetically non-conductive.
As shown in fig. 1, 2, 3 and 4, in embodiment 1, the angle between the right terminal plate 9 and the upper surface of the body 1 is preferably 120 degrees, two sets of locking bolt mounting holes 6 are preferably provided, the mounting directions of two adjacent sets of locking bolt mounting holes 6 are different, and one set of outlet terminal mounting holes 10 is preferably provided; one of the outlet terminal mounting holes 10 is a round hole, and the other is a strip-shaped hole, and the hole distance adjusting range of the strip-shaped hole and the round hole is 28mm-45 mm.
As shown in fig. 5, 6, 7 and 8, in embodiment 2, the angle between the right terminal plate 9 and the upper surface of the body 1 is preferably 120 degrees, two sets of locking bolt mounting holes 6 are preferably provided, the mounting directions of two adjacent sets of locking bolt mounting holes 6 are different, and two sets of outlet terminal mounting holes 10 are preferably provided; one of the outlet terminal mounting holes 10 is a round hole, and the other is a strip-shaped hole, and the hole distance adjusting range of the strip-shaped hole and the round hole is 28mm-45 mm.
As shown in fig. 9, 10, 11 and 12, in embodiment 3, the angle between the right terminal plate 9 and the upper surface of the body 1 is preferably 120 degrees, there is preferably a set of lock bolt mounting holes 6, and there is preferably a set of outlet terminal mounting holes 10, and the outlet terminal mounting holes 10 preferably have a round hole.
In summary, the body and the right sub-plate of the utility model are manufactured by aluminum alloy extrusion molding process, and the welding part fracture caused by copper-aluminum transition problem can not occur; the inner threaded hole can be processed into different sizes and can be suitable for transformer wiring terminals with various specifications, the right terminal block is provided with an adjustable strip-shaped hole which can be connected with outlet terminal blocks with various specifications, and therefore the sectional area is 35-240mm2The wires within the range are connected with the transformer wiring terminals; when having multiunit locking bolt mounting hole, the installation direction of adjacent two sets of locking bolt mounting holes is different, can effectively avoid the condition of homonymy locking bolt not good installation when the installation clearance undersize.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an aluminum alloy transformer fastener which characterized in that: the transformer wiring terminal comprises a body and locking bolts, wherein the body is made of aluminum alloy, the left end of the body is provided with an internal thread hole connected with a transformer wiring terminal, the internal thread hole is axially provided with an opening, two sides of the opening are oppositely provided with lug plates, at least one group of locking bolt mounting holes penetrate through the oppositely arranged lug plates, one end of each group of locking bolt mounting holes is a through hole, the other end of each group of locking bolt mounting holes is a threaded hole, the radius of the through hole is larger than that of the threaded hole, and the mounting directions of two adjacent groups of locking bolt mounting holes are different; the right end of the body is a right end daughter board connected with the wire outlet terminal board, the angle between the right end daughter board and the upper surface of the body is larger than 90 degrees, and at least one fastening bolt mounting hole is formed in the right end daughter board.
2. The aluminum alloy transformer clamp of claim 1, wherein: the width of the body is smaller than that of the right sub-board.
3. The aluminum alloy transformer clamp of claim 1, wherein: the thickness of the connection part of the body and the right terminal board is larger than that of the right terminal board.
4. The aluminum alloy transformer clamp of claim 1, wherein: and a smooth fillet is arranged at the joint of the body and the right daughter board.
5. The aluminum alloy transformer clamp of claim 1, wherein: an electroplating protective layer is arranged on the outer surface of the body.
6. The aluminum alloy transformer clamp of claim 1, wherein: the locking bolt is a stainless steel bolt without magnetic conductivity.
7. The aluminum alloy transformer clamp of claim 1, wherein: the width of the opening is less than two fifths of the diameter of the internal thread hole.
8. The aluminum alloy transformer clamp of claim 1, wherein: smooth fillets are arranged on the upper side and the lower side of the lug plate, and the radius of the through hole in the lug plate is larger than or equal to 1.1 times of that of the threaded hole.
9. The aluminum alloy transformer clamp of claim 1, wherein: the number of the fastening bolt mounting holes is at least 1, one of the fastening bolt mounting holes in each group is a round hole, the other fastening bolt mounting hole in each group is a strip-shaped hole, and the hole distance adjusting range of the strip-shaped holes and the round holes is 28-45 mm.
10. The aluminum alloy transformer clamp of claim 1, wherein: one mounting hole is arranged in each group, and the mounting holes are round holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121253987.XU CN214849082U (en) | 2021-06-04 | 2021-06-04 | Aluminum alloy transformer wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121253987.XU CN214849082U (en) | 2021-06-04 | 2021-06-04 | Aluminum alloy transformer wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214849082U true CN214849082U (en) | 2021-11-23 |
Family
ID=78799950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121253987.XU Active CN214849082U (en) | 2021-06-04 | 2021-06-04 | Aluminum alloy transformer wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214849082U (en) |
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2021
- 2021-06-04 CN CN202121253987.XU patent/CN214849082U/en active Active
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