CN210209044U - An auxiliary device for exothermic welding of ground electrodes - Google Patents
An auxiliary device for exothermic welding of ground electrodes Download PDFInfo
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- CN210209044U CN210209044U CN201920956352.2U CN201920956352U CN210209044U CN 210209044 U CN210209044 U CN 210209044U CN 201920956352 U CN201920956352 U CN 201920956352U CN 210209044 U CN210209044 U CN 210209044U
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Abstract
本实用新型公开了一种用于接地极放热焊接的辅助装置，涉及变电站施工设备技术领域，该装置包括用于接地极放热焊接的辅助装置,包括一横梁，所述横梁的左、右两端分别设置有纵梁，所述的横梁和纵梁共同形成了主框架，所述的纵梁上设置有支腿。所述的横梁上设置有沿上下方向贯穿所述横梁的通孔，所述横梁的前、后两侧分别固定设置有托板。所述主框架的左、右两端的中部滑动设置有导向杆，且所述的主框架上上设置有用于顶紧所述导向杆的顶紧螺钉，所述导向杆的上端设置有夹紧组件。该装置能够实现模具、铜绞线和接地极之间的相对固定，操作更加简单，且能够保证铜绞线与模具之间的同轴度，保证焊接质量的同时降低了用工量。
The utility model discloses an auxiliary device for exothermic welding of grounding electrodes, which relates to the technical field of construction equipment of substations. The device comprises an auxiliary device for exothermic welding of grounding electrodes, comprising a beam. The two ends are respectively provided with longitudinal beams, the transverse beams and the longitudinal beams together form a main frame, and the longitudinal beams are provided with supporting legs. The cross beam is provided with a through hole penetrating the cross beam in the up-down direction, and support plates are respectively fixed on the front and rear sides of the cross beam. The middle of the left and right ends of the main frame is slidably provided with guide rods, and the main frame is provided with a top tightening screw for pressing the guide rod, and the upper end of the guide rod is provided with a clamping assembly . The device can realize the relative fixation between the mold, the copper stranded wire and the grounding electrode, the operation is simpler, and the coaxiality between the copper stranded wire and the mold can be ensured, the welding quality is ensured, and the labor consumption is reduced.
Description
Technical Field
The utility model belongs to the technical field of the construction equipment technique of transformer substation and specifically relates to an auxiliary device for heat release welding of earthing pole.
Background
Exothermic welding is a simple, high-efficiency, high-quality metal joining method, and is commonly called fire clay welding. Exothermic welding is to melt metals completely by high temperature generated by thermite reaction to achieve high quality welding effect. The welding process can realize the welding of the same material and the welding of different materials of copper, iron, aluminum, steel and other metals, and achieves the molecular combination.
According to the operating rule of heat release welding, the base metal insertion hole of the die is tightly matched with the outer diameter of the copper stranded wire during welding, no residual hole or offset seam exists, namely the axis of the copper stranded wire is coaxial with the base metal insertion hole of the die, and otherwise, unqualified joints are easy to appear.
When welding between the grounding electrode and the copper stranded wire, the grounding electrode is inserted into the die from the lower part of the die, and the copper stranded wire is inserted into the lead wires from two sides or one side of the die. In the actual construction process, the grounding electrode is fixed in advance, on one hand, in the construction environment, the area where the grounding electrode is arranged is often not flat, on the other hand, in the welding process, the length of the grounding electrode inserted into the mold needs to be controlled within a certain range, and the length of the grounding electrode exposed on the ground surface is certain. The two reasons result in that the mold cannot be placed on the bottom surface in the welding process and can only be suspended in the air by an operator in a mode of holding the mold clamp (the mold for welding the grounding electrode adopts a left-right split structure, and the mold clamp is used for clamping the left part and the right part of the mold, and belongs to the prior art). There are problems as follows:
firstly, the coaxiality control in the process is completely dependent on the feeling of operators, serious instability exists, the coaxiality between the grounding electrode and the die and the coaxiality between the copper stranded wire and the die cannot be guaranteed, and even if the strict coaxiality between the copper stranded wire and the die is guaranteed at the beginning of welding, dislocation is easy to occur in the welding process.
Second, owing to need alone handheld mould at the welded in-process, alone hold the copper strand wires, welding process needs two people cooperations at least, when needs earthing pole and copper strand wires formation T type structure, needs the cooperation more than two people just can accomplish this process, wastes time and energy.
In addition, in the case of a mold, the exothermic welding must be performed using a special mold manufactured by a high-temperature-resistant semi-permanent graphite process, which can withstand the ultra-high temperature when melting metal, but is limited by the properties of the material itself, and which is not so strong that it is easily worn or chipped.
When the problem of non-coaxial connection exists between the grounding electrode and the die or between the copper stranded wires and the die, stress exists between the die and the grounding electrode and between the die and the copper stranded wires, the die is easily damaged, according to the previous construction experience, only 50 welding points can be welded on the average one set of die, and the construction cost is increased invisibly.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides an auxiliary device for exothermic welding of earthing pole, the device can realize the relatively fixed between mould, copper strand wires and the earthing pole, and the operation is simpler, and can guarantee the axiality between copper strand wires and the mould, has reduced the recruitment when guaranteeing welding quality.
The utility model provides a technical scheme that its technical problem adopted is:
an auxiliary device for heat release welding of a grounding electrode comprises a cross beam, wherein longitudinal beams are respectively arranged at the left end and the right end of the cross beam, the cross beam and the longitudinal beams jointly form a main frame, and supporting legs are arranged on the longitudinal beams;
the cross beam is provided with a through hole which penetrates through the cross beam along the vertical direction, and the front side and the rear side of the cross beam are respectively and fixedly provided with a supporting plate;
the middle parts of the left end and the right end of the main frame are provided with guide rods in a sliding mode, the main frame is provided with tightening screws used for tightening the guide rods, and the upper end of each guide rod is provided with a clamping assembly.
Furthermore, the number of the longitudinal beams is four, the longitudinal beams are respectively arranged on the front side and the rear side of the left end and the right end of the cross beam, and the longitudinal beams are respectively hinged with the cross beam.
Further, clamping component include punch holder, lower plate and connecting block, the upper and lower both ends of connecting block respectively with one side of punch holder and lower plate articulated mutually, all be provided with the arc recess on the medial surface of punch holder and lower plate, the opposite side of lower plate is articulated to be provided with the locking post, the locking post on be provided with first lock nut, the punch holder on be provided with and be used for holding the breach of locking post.
Furthermore, a first stud is arranged on the lower clamping plate, a threaded hole matched with the first stud is formed in the upper end face of the guide rod, and a second locking nut is arranged on the first stud.
Furthermore, a vertical plate is fixedly arranged on the supporting plate, a jacking screw rod is arranged on the vertical plate, the two jacking screw rods are symmetrically arranged relative to the cross beam, and a jacking block is fixedly arranged at the inner end of each jacking screw rod.
Furthermore, a buffering heat-insulating pad made of asbestos materials is arranged on the inner side face of the jacking block.
Furthermore, a guide sleeve for accommodating the guide rod is fixedly arranged on the main frame, and the jacking screw is arranged on the guide sleeve.
Furthermore, a rib plate is arranged between the cross beam and the supporting plate.
Further, the through hole is a long round hole.
Further, the lower end of the supporting leg is provided with a bottom plate. The utility model has the advantages that:
1. realize the relatively fixed between earthing pole, copper strand wires and the mould through the mode of mechanical fastening, not only can guarantee the coaxial between copper strand wires and the mould, can avoid moreover that the copper strand wires take place to remove the dislocation at the welded in-process to reduce the welded defective rate, have good reliability and stability.
2. One person can finish the welding operation, the labor amount is reduced, and the working efficiency is improved.
3. As the coaxiality among the grounding electrode, the copper stranded wire and the die is improved, the damage rate of the die is reduced, and the service life of the die is prolonged.
4. The die assembly that does not need the operation workman to press from both sides through the mould at the welded in-process and realize the mould presss from both sides tightly, after fixing mould and copper strand wires through auxiliary device, only need to ignite the operation can, do not need the manual work to guarantee the clamp of mould at the in-process of reaction and tightly, guaranteed the security of operation.
5. The copper stranded wire can be straightened during welding, and the waste of materials is reduced.
Drawings
FIG. 1 is a schematic perspective view of one direction of an auxiliary device;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a front view of the auxiliary device;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
FIG. 5 is a perspective view of the auxiliary device in another direction;
FIG. 6 is a perspective view of the clamping assembly;
FIG. 7 is a schematic perspective view of a mold;
fig. 8 is a schematic perspective view of a main frame according to a second embodiment.
In the figure: 11-a cross beam, 111-a long circular hole, 12-a longitudinal beam, 121-a guide sleeve, 122-a tightening screw, 13-a support leg, 14-a supporting plate, 15-a rib plate, 21-a vertical plate, 22-a tightening screw rod, 221-a tightening block, 222-an adjusting handle, 3-a guide rod, 4-a clamping assembly, 41-an upper clamping plate, 42-a lower clamping plate, 43-a connecting block, 44-a locking column, 45-a first locking nut, 46-a stud, 47-a second locking nut, 5-a mold, 61-a copper stranded wire and 62-a grounding electrode.
Detailed Description
Example one
As shown in fig. 1, an auxiliary device for exothermic welding of a ground electrode 62 includes a cross beam 11, longitudinal beams 12 are respectively disposed at left and right ends of the cross beam 11, and the cross beam 11 and the longitudinal beams 12 together form an i-shaped main frame. The two ends of the longitudinal beam 12 are respectively provided with a supporting leg 13.
As shown in fig. 1 and 5, a through hole for accommodating the ground electrode 62 is disposed in the middle of the cross beam 11, and supporting plates 14 for supporting the mold 5 are respectively fixedly disposed at positions corresponding to the through hole on the front and rear sides of the cross beam 11, where as a specific embodiment, the supporting plates 14 are fixedly connected to the cross beam 11 by welding in this embodiment.
Further, in order to improve the connection strength between the supporting plate 14 and the cross beam 11, as shown in fig. 5, a rib plate 15 is disposed between the cross beam 11 and the supporting plate 14.
Further, since it is necessary to adjust the position of the auxiliary device according to the environment of the construction site during actual use, for convenience of adjustment, as shown in fig. 5, the through hole provided in the cross member 11 for accommodating the grounding electrode 62 is an oblong hole 111 arranged in the left-right direction.
As shown in fig. 1, a guide hole for accommodating the guide rod 3 is formed in the middle of the longitudinal beam 12, the guide rod 3 is disposed in the guide hole and can slide up and down along the guide hole, and the cross section of the guide rod 3 is polygonal. As a specific embodiment, the cross section of the guide rod 3 is square in this embodiment. The upper end of the guide rod 3 is provided with a clamping assembly 4 for clamping the copper stranded wire 61.
As shown in fig. 2 and 6, the clamping assembly 4 includes an upper clamping plate 41, a lower clamping plate 42 and a connecting block 43 for connecting the upper clamping plate 41 and the lower clamping plate 42, wherein the upper end of the connecting block 43 is hinged to the upper clamping plate 41, and the lower end of the connecting block 43 is hinged to the lower clamping plate 42. The inner side surfaces of the upper clamping plate 41 and the lower clamping plate 42 (the opposite side of the upper clamping plate 41 and the lower clamping plate 42 is the inner side) are provided with arc-shaped grooves, and the two arc-shaped grooves jointly form a clamping space for clamping the copper stranded wire 61. One side of the lower clamping plate 42 opposite to the connecting block 43 is provided with a locking column 44, the lower end of the locking column 44 is hinged with the lower clamping plate 42, and the locking column 44 is provided with a first locking nut 45. Preferably, the first locking nut 45 is a wing nut. The upper clamping plate 41 is provided with a notch for accommodating the locking column 44 at a position corresponding to the locking column 44.
When the copper stranded wires 61 need to be clamped, the upper clamping plate 41 and the lower clamping plate 42 of the clamping assembly 4 are opened, the copper stranded wires 61 are placed in the arc-shaped grooves of the lower clamping plate 42, then the upper clamping plate 41 is covered, and the copper stranded wires 61 are located in the circular clamping space formed by the upper clamping plate 41 and the lower clamping plate 42. Then, the locking column 44 is rotated to enable the upper end of the locking column 44 to be located in the notch of the upper clamping plate 41, and then the first locking nut 45 is screwed to enable the first locking nut 45 to be tightly pressed on the edge of the upper clamping plate 41.
Further, since the diameter of the copper strands 61 is different during construction, the clamping assembly 4 needs to be replaced according to the diameter of the copper strands 61. For convenience of replacement, as shown in fig. 3 and 4, the lower clamping plate 42 is provided with a downwardly extending stud 46, and the upper end surface of the guide rod 3 is provided with a threaded hole matched with the stud 46. The stud 46 is provided with a second locking nut 47 for locking the clamping assembly 4.
Further, in order to increase the guiding length and improve the stability, as shown in fig. 2, a guiding sleeve 121 for accommodating the guiding rod 3 is fixedly arranged on the longitudinal beam 12, and a tightening screw 122 for tightening the guiding rod 3 is arranged on the guiding sleeve 121.
As shown in fig. 1 and 5, a vertical plate 21 is fixedly disposed on the supporting plate 14 at a suspended end of the supporting plate 14 by welding, a tightening screw 22 is disposed on the vertical plate 21, the tightening screw 22 is in threaded connection with the vertical plate 21, a tightening block 221 is fixedly disposed at an inner end of the tightening screw 22 (one end of the tightening screw 22 opposite to the other end is an inner end), and an adjusting handle 222 is fixedly disposed at an outer end of the tightening screw 22.
Preferably, each of the vertical plates 21 is provided with two tightening screws 22, and the two tightening screws 22 are arranged along the vertical direction.
Further, a buffering and heat insulating pad (not shown) made of asbestos material is provided on an inner side surface (an inner side of a side of the two tightening blocks 221 opposite to each other) of the tightening blocks 221. The purpose of providing a cushioning personal pad here is mainly twofold, firstly, to avoid the rigid jacking block 221 from damaging the mould 5 during clamping; secondly, block the heat transfer between mould 5 and the tight screw rod 22 of top, avoid causing operating personnel to scald when dismantling.
As shown in fig. 7, the dies 5 for welding the grounding electrode 62 are left and right split bodies, and the clamping of the left and right portions of the die 5 is realized by the die 5 clamp (prior art) in the conventional welding operation. The utility model discloses a set up the tight screw rod 22 in top and not only realized the relative fixation between mould 5 and the auxiliary device, it is tight also to have realized that the compound die of the left and right part of mould 5 itself presss from both sides, does not need the handheld mould 5 of operation workman to press from both sides the compound die that realizes mould 5 in the operation process of reality and presss from both sides tightly, has improved the security of operation process.
Further, in order to improve the stability of the apparatus, the lower end of the leg 13 is provided with a bottom plate having a circular shape.
Example two
The front and rear sides of the left and right ends of the cross beam 11 are respectively provided with a longitudinal beam 12 extending outwards, the cross beam 11 and the longitudinal beam 12 jointly form an I-shaped main frame, and the guide hole and the guide sleeve 121 are arranged at the left and right ends of the cross beam 11.
Further, as shown in fig. 8, the longitudinal beams 12 are respectively hinged to the cross beams 11.
The aim at that sets up like this improves the flexibility that the device was used, because the construction environment at the in-process scene of construction is various, and the construction area is narrower or the bottom surface is not gentle sometimes, needs look for suitable strong point according to the construction on scene, through adopting articulated design, the strong point that looks for suitable support that can be nimble, convenient construction. In addition, the folding of device has been realized, convenient storage.
The rest of the structure is the same as the first embodiment.
Claims (10)
1. An auxiliary device for exothermic welding of a grounding electrode is characterized in that: the device comprises a cross beam, wherein longitudinal beams are respectively arranged at the left end and the right end of the cross beam, the cross beam and the longitudinal beams jointly form a main frame, and supporting legs are arranged on the longitudinal beams;
the cross beam is provided with a through hole which penetrates through the cross beam along the vertical direction, and the front side and the rear side of the cross beam are respectively and fixedly provided with a supporting plate;
the middle parts of the left end and the right end of the main frame are provided with guide rods in a sliding mode, the main frame is provided with tightening screws used for tightening the guide rods, and the upper end of each guide rod is provided with a clamping assembly.
2. An auxiliary device for exothermic welding of a ground electrode according to claim 1, wherein: the four longitudinal beams are respectively arranged on the front side and the rear side of the left end and the right end of the cross beam, and the longitudinal beams are respectively hinged with the cross beam.
3. An auxiliary device for exothermic welding of a ground electrode according to claim 1, wherein: clamping component include punch holder, lower plate and connecting block, the upper and lower both ends of connecting block respectively with one side of punch holder and lower plate articulated mutually, all be provided with the arc recess on the medial surface of punch holder and lower plate, the articulated locking post that is provided with of opposite side of lower plate, the locking post on be provided with first lock nut, the punch holder on be provided with and be used for holding the breach of locking post.
4. An auxiliary device for exothermic welding of a ground electrode according to claim 3, wherein: the lower clamping plate is provided with a first stud, the upper end face of the guide rod is provided with a threaded hole matched with the first stud, and the first stud is provided with a second locking nut.
5. An auxiliary device for exothermic welding of a ground electrode according to claim 1, wherein: the supporting plate is fixedly provided with a vertical plate, the vertical plate is provided with a jacking screw rod, the two jacking screw rods are symmetrically arranged relative to the cross beam, and a jacking block is fixedly arranged at the inner end of the jacking screw rod.
6. An auxiliary device for exothermic welding of a ground electrode according to claim 5, wherein: and a buffering heat-insulating pad made of asbestos materials is arranged on the inner side surface of the jacking block.
7. An auxiliary device for exothermic welding of a ground electrode according to claim 1, wherein: the main frame on be fixed with and be used for holding the uide bushing of guide bar, the tight screw set up in top on the uide bushing.
8. An auxiliary device for exothermic welding of a ground electrode according to claim 1, wherein: and a rib plate is arranged between the cross beam and the supporting plate.
9. An auxiliary device for exothermic welding of a ground electrode according to claim 1, wherein: the through hole is a long round hole.
10. An auxiliary device for exothermic welding of a ground electrode according to claim 1, wherein: the lower end of the supporting leg is provided with a bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920956352.2U CN210209044U (en) | 2019-06-21 | 2019-06-21 | An auxiliary device for exothermic welding of ground electrodes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920956352.2U CN210209044U (en) | 2019-06-21 | 2019-06-21 | An auxiliary device for exothermic welding of ground electrodes |
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| CN210209044U true CN210209044U (en) | 2020-03-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843182A (en) * | 2020-08-17 | 2020-10-30 | 中国三冶集团有限公司 | Heat release casting welding device and method for hot-cast copper-coated steel grounding material |
| CN113601094A (en) * | 2021-10-08 | 2021-11-05 | 广东电网有限责任公司东莞供电局 | Copper strand wires of transformer substation's construction exothermic welding auxiliary device |
| CN114744546A (en) * | 2022-04-15 | 2022-07-12 | 李会生 | Dislocation-preventing twisted wire auxiliary welding device for power construction |
| CN117961252A (en) * | 2024-03-28 | 2024-05-03 | 四川省川河盛鑫电力工程有限公司 | High-voltage cable exothermic welding equipment |
-
2019
- 2019-06-21 CN CN201920956352.2U patent/CN210209044U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843182A (en) * | 2020-08-17 | 2020-10-30 | 中国三冶集团有限公司 | Heat release casting welding device and method for hot-cast copper-coated steel grounding material |
| CN113601094A (en) * | 2021-10-08 | 2021-11-05 | 广东电网有限责任公司东莞供电局 | Copper strand wires of transformer substation's construction exothermic welding auxiliary device |
| CN113601094B (en) * | 2021-10-08 | 2022-01-21 | 广东电网有限责任公司东莞供电局 | A kind of copper stranded wire exothermic welding auxiliary device for substation construction |
| CN114744546A (en) * | 2022-04-15 | 2022-07-12 | 李会生 | Dislocation-preventing twisted wire auxiliary welding device for power construction |
| CN114744546B (en) * | 2022-04-15 | 2024-04-19 | 河北极致电力科技有限公司 | Anti-dislocation stranded wire auxiliary welding device for power construction |
| CN117961252A (en) * | 2024-03-28 | 2024-05-03 | 四川省川河盛鑫电力工程有限公司 | High-voltage cable exothermic welding equipment |
| CN117961252B (en) * | 2024-03-28 | 2024-05-31 | 四川省川河盛鑫电力工程有限公司 | A high voltage cable exothermic welding device |
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