CN216084553U - Mining flame-proof type transformer heavy current binding post structure - Google Patents
Mining flame-proof type transformer heavy current binding post structure Download PDFInfo
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- CN216084553U CN216084553U CN202121806984.4U CN202121806984U CN216084553U CN 216084553 U CN216084553 U CN 216084553U CN 202121806984 U CN202121806984 U CN 202121806984U CN 216084553 U CN216084553 U CN 216084553U
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Abstract
The utility model discloses a mining explosion-proof transformer high-current wiring terminal structure, which comprises: the device comprises a conductive copper rod, a fixing mechanism, a DMC (metal matrix) insulating pouring body and an explosion-proof outer flange, wherein the DMC insulating pouring body and the explosion-proof outer flange are integrally designed; the transformer secondary side terminal lug is connected with the transformer secondary side terminal lug through a bolt, the other end of the conductive copper rod is connected with the low-voltage switch connecting line, and a mounting hole for connecting the bolt is formed in the conductive copper rod; and the fixing mechanism comprises mounting blocks which are symmetrically arranged at two ends of the conductive copper rod. The connecting terminal is connected with the secondary side of the transformer and two ends of the low-voltage switch in a crimping mode, the cross section of the conducting bar is not limited by threads and assembly size, the temperature rise of the connecting terminal can be effectively reduced, and the safety of the connecting terminal is improved.
Description
Technical Field
The utility model relates to the technical field of mining explosion-proof transformers, in particular to a high-current wiring terminal structure of a mining explosion-proof transformer.
Background
Along with the acceleration of optimization and recombination pace of domestic large-scale coal mine enterprises, the usage amount of 5000-8000 kVA large-capacity explosion-proof transformers matched with underground large-scale intelligent fully mechanized coal mining working faces is increased year by year; the size of a terminal box flange is clearly specified in national standards, and is limited by factors such as electrical clearance, structural size, temperature rise of a connecting terminal and the like, and the commonly used M24 multiplied by 2 conducting rod thread compression type and explosion-proof type porcelain sleeve connecting terminal cannot meet the wiring requirements of large-capacity equipment on a working face.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the following defects in the prior art, and provides a mining explosion-proof transformer large-current wiring terminal structure.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a mining flame-proof type transformer heavy current binding post structure, mining flame-proof type transformer heavy current binding post structure includes: the device comprises a conductive copper rod, a fixing mechanism, a DMC (metal matrix) insulating pouring body and an explosion-proof outer flange, wherein the DMC insulating pouring body and the explosion-proof outer flange are integrally designed; the transformer secondary side terminal lug is connected with the transformer secondary side terminal lug through a bolt, the other end of the conductive copper rod is connected with the low-voltage switch connecting line, and a mounting hole for connecting the bolt is formed in the conductive copper rod; the fixing mechanism comprises mounting blocks which are symmetrically arranged at two ends of the conductive copper rod, each mounting block is provided with a through hole for mounting a transformer secondary side lug and a low-voltage switch connecting wire, the conductive copper rod is provided with a sliding rod in a sliding manner, and the mounting block is provided with a mounting cavity for connecting the sliding rod.
In order to achieve the purpose, the utility model adopts a further technical scheme that: the cross section of the conductive copper rod is set to be dumbbell-shaped, the cross section of the middle of the conductive copper rod is set to be rectangular, and the cross sections of transition parts at two ends of the conductive copper rod are set to be trapezoidal.
In order to achieve the purpose, the utility model adopts a further technical scheme that: one side of the mounting block is slidably connected with a positioning rod, and the positioning rod is used for limiting the movement of the sliding rod.
In order to achieve the purpose, the utility model adopts a further technical scheme that: the positioning rod is connected with the mounting block through a spring, and a clamping groove used for connecting the positioning rod is formed in the sliding rod.
In order to achieve the purpose, the utility model adopts a further technical scheme that: and a rotating handle is rotatably arranged at one end of the positioning rod and is used for conveniently controlling the movement of the positioning rod.
In order to achieve the purpose, the utility model adopts a further technical scheme that: the mounting block is fixedly provided with a fixing plate, and the rotating handle is connected with the fixing plate through a connecting block.
The utility model discloses a mining explosion-proof transformer large-current wiring terminal structure, which has the advantages that: the two ends of the connecting terminal are connected with the connecting wire in a compression joint mode, the section of the conductive bar is not limited by threads and assembly size, the section of the copper bar can meet the requirement of 1200-2000A large current during design, and the temperature rise of the connecting terminal can be effectively reduced; from the structural manufacturability analysis, the cross section of the conducting rod is set to be in a dumbbell shape, the middle part of the conducting rod is designed to be cylindrical, the transition sections at two ends adopt trapezoidal structures to increase the bonding strength and the torque resistance, the DMC insulating material is good in pouring process, simple in structure, convenient to assemble and disassemble and reliable in connection, and the phenomenon that copper fine tooth threaded connection is easy to rot teeth after being assembled and disassembled for many times is avoided.
Drawings
FIG. 1 is a schematic front structure diagram of a large-current wiring terminal structure of a mining explosion-proof transformer, which is provided by the utility model;
FIG. 2 is a schematic cross-sectional structural diagram of a large-current wiring terminal structure of a mining explosion-proof transformer, which is provided by the utility model;
FIG. 3 is a schematic side view of a large-current wiring terminal structure of a mining explosion-proof transformer, which is provided by the utility model;
FIG. 4 is a schematic perspective view of a large-current wiring terminal structure of a mining explosion-proof transformer, which is provided by the utility model;
fig. 5 is a schematic sectional perspective view of the mounting block.
In the figure: the transformer secondary side connection piece comprises a conductive copper rod 1, a transformer secondary side connection piece 2, a 3DMC insulation pouring body, a 4 explosion-proof outer flange, a 5 low-voltage switch connection wire, a 6 mounting hole, a 7 spring, an 8 rotating handle, a 9 sliding rod, a 10 bolt, a 11 mounting block, a 12 fixing plate, a 13 connecting block, a 14 positioning rod and a 15 clamping groove.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-5, a mining flame-proof type transformer heavy current wiring terminal structure, mining flame-proof type transformer heavy current wiring terminal structure includes: the conductive copper rod 1, the fixing mechanism, the DMC insulating casting body 3 and the explosion-proof outer flange 4 are integrally designed, the cross section of the conductive copper rod 1 is set to be dumbbell-shaped, the cross section of the middle part of the conductive copper rod 1 is set to be rectangular, the cross sections of transition parts at two ends of the conductive copper rod 1 are set to be trapezoid, the conductive copper rod 1 is similar to the dumbbell-shaped, the middle part of the conductive copper rod 1 is designed to be cylindrical, and the trapezoidal structure is adopted to the transition sections at two ends to increase the bonding strength and the torque resistance, so that the connection is more reliable; transformer secondary side lug 2 and low voltage switch connecting wire 5, electrically conductive copper pole 1 one end is passed through bolt 10 and is connected with transformer secondary side lug 2, and the electrically conductive copper pole 1 other end is connected with low voltage switch connecting wire 5, offers the mounting hole 6 that is used for connecting bolt 10 on the electrically conductive copper pole 1. The fixing mechanism comprises mounting blocks 11 symmetrically arranged at two ends of a conductive copper rod 1, each mounting block 11 is respectively provided with a through hole for mounting a transformer secondary side lug 2 and a low-voltage switch connecting wire 5, the conductive copper rod 1 is provided with a sliding rod 9 in a sliding manner, the mounting block 11 is provided with a mounting cavity for connecting the sliding rod 9, one side of the mounting block 11 is connected with a positioning rod 14 in a sliding manner, the positioning rod 14 is used for limiting the movement of the sliding rod 9, one end of the positioning rod 14 is clamped with a clamping groove 15 on the sliding rod 9, thereby the sliding rod 9 can be stably arranged on the conductive copper rod 1, the sliding rod 9 can be prevented from sliding randomly, the positioning rod 14 is connected with the mounting block 11 through the spring 7, the sliding rod 9 is provided with a clamping groove 15 for connecting the positioning rod 14, one end of the spring 7 is fixedly connected with the surface of the mounting block 11, and the other end of the spring 7 is fixedly connected with the positioning rod 14.
Under the action of the elastic force of the spring 7, the positioning rod 14 slides relative to the mounting block 11, one end of the positioning rod 14 is clamped with a clamping groove 15 on the sliding rod 9, one end of the positioning rod 14 is rotatably provided with a rotating handle 8, the rotating handle 8 is used for conveniently controlling the movement of the positioning rod 14, because one end of the positioning rod 14 is provided with the rotating handle 8, when the positioning rod 14 needs to be moved, because the rotating handle 8 is rotatably connected with the positioning rod 14, the movement of the positioning rod 14 can be more conveniently controlled by controlling the rotating handle 8, the mounting block 11 is fixedly provided with a fixed plate 12, the rotating handle 8 is connected with the fixed plate 12 through a connecting block 13, because one end of the connecting block 13 is clamped with the fixed plate 12, the connecting block 13 is separated from the fixed plate 12 through manual operation, meanwhile, the connecting block 13 is not connected with the rotating handle 8, then the rotating handle 8 rotates, so that the rotating handle 8 and the fixed plate 12 are not positioned in the same vertical plane, the vertical movement of the turning handle 8 and the positioning rod 14 is not hindered by the fixing plate 12.
In the utility model, during assembly, firstly, a conductive copper rod 1 is screwed into an explosion-proof threaded hole of an explosion-proof outer flange 4, after being screwed, a hexagon screw is used for fastening and preventing looseness, then a transformer secondary side lug 2 is placed on the surface of one end of the conductive copper rod 1, the transformer secondary side lug 2 simultaneously penetrates through a through hole on a mounting block 11, simultaneously, a bolt 10 is used for connecting with a mounting hole 6 on the conductive copper rod 1, the transformer secondary side lug 2 and one end of the conductive copper rod 1 are tightly connected together, meanwhile, a sliding rod 9 simultaneously penetrates through the conductive copper rod 1 and the transformer secondary side lug 2, one end is positioned in a mounting cavity of the mounting block 11, as one end of a connecting block 13 is clamped with a fixing plate 12, the connecting block 13 is separated from the fixing plate 12 by manual operation, the connecting block 13 is not connected with a rotating handle 8, then the rotating handle 8 is rotated, so that the rotating handle 8 and the fixing plate 12 are not positioned in the same vertical plane, the vertical movement of the rotating handle 8 and the positioning rod 14 is not hindered by the fixed plate 12, because one end of the spring 7 is fixedly connected with the surface of the mounting block 11, the other end of the spring 7 is fixedly connected with the positioning rod 14, under the elastic action of the spring 7, the positioning rod 14 and the mounting block 11 slide relatively, one end of the positioning rod 14 is clamped with the clamping groove 15 on the sliding rod 9, so that the sliding rod 9 can be stably mounted on the conductive copper rod 1, the conductive copper rod 1 is tightly connected with the transformer secondary side wiring piece 2, then the other end of the conductive copper rod 1 is tightly connected with the low-voltage switch connecting wire 5 and the conductive copper rod 1 by using the bolt 10 and the sliding rod 9 in the same way, the connection and the installation of the current wiring terminal are completed, on the basis of ensuring the electrical clearance, the creepage distance and the thread explosion-proof structure, the requirement of the lead wire of a large-current terminal is met, and the temperature rise of the wiring terminal can be effectively reduced, the safety of the wiring terminal is improved.
Claims (6)
1. The utility model provides a mining flame-proof type transformer heavy current binding post structure which characterized in that, mining flame-proof type transformer heavy current binding post structure includes: the device comprises a conductive copper rod (1), a fixing mechanism, a DMC (metal matrix) insulating casting body (3) and an explosion-proof outer flange (4), wherein the DMC insulating casting body (3) and the explosion-proof outer flange (4) are integrally designed; the transformer secondary side wiring lug is characterized by comprising a transformer secondary side wiring lug (2) and a low-voltage switch connecting wire (5), wherein one end of a conductive copper rod (1) is connected with the transformer secondary side wiring lug (2) through a bolt (10), the other end of the conductive copper rod (1) is connected with the low-voltage switch connecting wire (5), and a mounting hole (6) used for connecting the bolt (10) is formed in the conductive copper rod (1); fixing mechanism sets up including the symmetry installation piece (11) at electrically conductive copper pole (1) both ends, every offer respectively on installation piece (11) and be used for the installation transformer secondary side lug (2) and the through-hole of low-voltage switch connecting wire (5), slidable mounting has slide bar (9) on electrically conductive copper pole (1), offer on installation piece (11) and be used for connecting the installation cavity of slide bar (9).
2. The mining flameproof transformer large-current wiring terminal structure according to claim 1, wherein the cross section of the conductive copper rod (1) is dumbbell-shaped, the cross section of the middle part of the conductive copper rod (1) is rectangular, and the cross section of the transition part at two ends of the conductive copper rod (1) is trapezoidal.
3. The mining flameproof transformer large-current wiring terminal structure according to claim 1, wherein a positioning rod (14) is connected to one side of the mounting block (11) in a sliding manner, and the positioning rod (14) is used for limiting the movement of the sliding rod (9).
4. The mining flameproof transformer large-current wiring terminal structure according to claim 3, wherein the positioning rod (14) is connected with the mounting block (11) through a spring (7), and the sliding rod (9) is provided with a clamping groove (15) for connecting the positioning rod (14).
5. The mining flameproof transformer large-current wiring terminal structure according to claim 3, wherein a rotating handle (8) is rotatably mounted at one end of the positioning rod (14), and the rotating handle (8) is used for conveniently controlling the movement of the positioning rod (14).
6. A mining flameproof transformer high-current wiring terminal structure according to claim 5, characterized in that a fixing plate (12) is fixedly mounted on the mounting block (11), and the rotating handle (8) is connected with the fixing plate (12) through a connecting block (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121806984.4U CN216084553U (en) | 2021-08-04 | 2021-08-04 | Mining flame-proof type transformer heavy current binding post structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121806984.4U CN216084553U (en) | 2021-08-04 | 2021-08-04 | Mining flame-proof type transformer heavy current binding post structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216084553U true CN216084553U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121806984.4U Active CN216084553U (en) | 2021-08-04 | 2021-08-04 | Mining flame-proof type transformer heavy current binding post structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216084553U (en) |
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2021
- 2021-08-04 CN CN202121806984.4U patent/CN216084553U/en active Active
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