CN216656818U

CN216656818U - Welding device

Info

Publication number: CN216656818U
Application number: CN202122740110.XU
Authority: CN
Inventors: 柳海如; 张国良; 李孝森
Original assignee: Hubei Lvhang Technology Co ltd
Current assignee: Hubei Lvhang Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-06-03
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a welding device, which is used for welding an aluminum bus and belongs to the technical field of self-propagating welding of the aluminum bus. The crucible is used for containing solder, and the bottom of the crucible is provided with a through hole; the insulating tube comprises a working layer and an insulating layer which are sequentially arranged from inside to outside, one end of the insulating tube is communicated with the through hole of the crucible, and the other end of the insulating tube is used for leading the welding liquid to the upper part of the welding line of the aluminum bus to be welded. The device can set up the crucible in the great position of aluminium electroloysis workshop space, and stretch into the insulating tube to the less welding seam department of waiting to weld the aluminium parent metal in space, and easy operation treats that the operating space requirement of welding the aluminium generating line is low, improves welding efficiency.

Description

Welding device

Technical Field

The utility model belongs to the technical field of self-propagating welding of aluminum buses, and particularly relates to a welding device.

Background

In aluminium electrolysis plants, the aluminium busbar is an important component as a carrier for the current. The aluminum bus welding mostly adopts self-propagating welding at present, under the condition of not depending on electric power, the welding flux in the crucible is ignited, the welding flux spontaneously generates chemical reaction to form high-temperature metal liquid, the high-temperature metal liquid flows into a welding seam, and the welding of the aluminum bus is finished after solidification. Such self-propagating welding can be performed spontaneously and rapidly without any further supply of energy thereto, and thus is widely used.

Because aluminum buses and equipment in an aluminum electrolysis workshop are numerous, the operating space for self-propagating welding at the aluminum bus is very small, and the crucible for welding is difficult to directly place at the aluminum bus to be welded, so that the welding efficiency of the aluminum bus is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a welding device, which can arrange a crucible at a position with larger space in an aluminum electrolysis workshop, extend a heat-insulating pipe to a welding seam of an aluminum base material to be welded with smaller space, is easy to operate, has low requirement on operating space of an aluminum bus to be welded and improves welding efficiency.

The technical scheme of the utility model is as follows:

the utility model provides a welding device for welding an aluminum bus, which comprises:

the crucible is used for containing solder, and a through hole is formed in the bottom of the crucible;

the insulating tube, the insulating tube includes working layer and the heat preservation that from interior to exterior laminating set gradually, the one end of insulating tube with the through-hole intercommunication of crucible, the other end of insulating tube is used for leading the welding liquid to the welding seam top of treating welded aluminium generating line.

Furthermore, a heating layer is arranged between the working layer and the heat preservation layer of the heat preservation pipe.

Further, the heating layer is composed of a heating wire.

Further, the height of the insulating tube is reduced in order along the direction from one end to the other end of the insulating tube.

Furthermore, the included angle between the middle part of the heat preservation pipe and the horizontal plane is 35-55 degrees.

Furthermore, both ends of the heat preservation pipe are vertically arranged.

Furthermore, one end of the heat preservation pipe is connected with the bottom of the crucible through threads.

Furthermore, a baffle plate which can be melted by the welding liquid is arranged in the through hole of the crucible.

Further, a handle is arranged on the outer side of the crucible.

Furthermore, the device also comprises a vehicle body, wherein one ends of the crucible and the heat preservation pipe are arranged on the vehicle body, the other end of the heat preservation pipe extends out of the vehicle body, and the bottom of the vehicle body is provided with rollers.

The beneficial effects of the utility model at least comprise:

the utility model provides a welding device for welding an aluminum bus, which comprises a crucible and a heat preservation pipe. The crucible is used for containing solder, and the bottom of the crucible is provided with a through hole; the insulating tube comprises a working layer and an insulating layer which are sequentially arranged from inside to outside, one end of the insulating tube is communicated with the through hole of the crucible, and the other end of the insulating tube is used for leading the welding liquid to the upper part of the welding line of the aluminum bus to be welded. When the aluminum bus is welded, solder is placed in the crucible, the other end of the heat preservation pipe is arranged above a welding line of the aluminum bus, the solder in the crucible is melted to form soldering liquid by igniting the ignition agent, the soldering liquid flows into the heat preservation pipe along the through hole at the bottom of the crucible and flows into the welding line of the aluminum bus along the heat preservation pipe, and after the soldering liquid is solidified, the welding line of the aluminum bus is welded. Because the insulating tube is provided with working layer and heat preservation, the working layer can contact with the welding liquid of high temperature, and the heat preservation can keep warm to the welding liquid in the insulating tube, avoids the welding liquid temperature to descend, solidifies in the insulating tube, realizes self-propagating welding. Because the heat preservation pipe is arranged between the crucible and the aluminum base metal to be welded, the crucible can be arranged at a position with a larger space in an aluminum electrolysis workshop, the heat preservation pipe extends into a welding seam of the aluminum base metal to be welded with a smaller space, the operation is easy, the requirement on the operation space of the aluminum bus to be welded is low, and the welding efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a welding apparatus according to the present embodiment;

fig. 2 is a sectional view of the insulating tube in fig. 1.

Description of the reference numerals: 1-crucible, 101-through hole, 2-heat preservation pipe, 201-working layer, 202-heat preservation layer, 203-heating layer, 3-baffle plate, 4-handle, 5-vehicle body, 6-roller and 7-aluminum bus

Detailed Description

In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.

Fig. 1 is a schematic structural diagram of a welding device according to the present embodiment, fig. 2 is a cross-sectional view of an insulating tube in fig. 1, and in combination with fig. 1 and fig. 2, the present invention provides a welding device for welding an aluminum bus bar 7, which includes a crucible 1 and an insulating tube 2.

The crucible 1 is used for containing solder, and the bottom of the crucible 1 is provided with a through hole 101; the insulating tube 2 comprises a working layer 201 and an insulating layer 202 which are sequentially attached from inside to outside, one end of the insulating tube 2 is communicated with the through hole 101 of the crucible, and the other end of the insulating tube 2 is used for leading the welding liquid to the upper part of the welding line of the aluminum bus 7 to be welded.

When the aluminum bus 7 is welded, solder is placed in the crucible 1, the other end of the heat preservation pipe 2 is arranged above the welding line of the aluminum bus 7, the solder in the crucible 1 is melted to form soldering liquid by igniting the ignition agent, the soldering liquid flows into the heat preservation pipe 2 along the through hole 101 in the bottom of the crucible 1 and flows into the welding line of the aluminum bus 7 along the heat preservation pipe 2, and after the soldering liquid is solidified, the welding line welding of the aluminum bus 7 is completed. Because insulating tube 2 is provided with working layer 201 and heat preservation 202, working layer 201 can contact with the welding liquid of high temperature, and heat preservation 202 can keep warm to the welding liquid in insulating tube 2, avoids the welding liquid temperature to descend, solidifies in insulating tube 2, realizes the self-propagating welding. Because the heat preservation pipe 2 is arranged between the crucible 1 and the aluminum base metal to be welded, the crucible 1 can be arranged at a position with a larger space in an aluminum electrolysis workshop, and the heat preservation pipe 2 extends into a welding seam of the aluminum base metal to be welded with a smaller space, so that the operation is easy, the requirement on the operation space of the aluminum bus 7 to be welded is low, and the welding efficiency is improved.

The working layer 201 in the insulating tube 2 may be made of graphite or refractory material, and the insulating layer 202 may also be made of refractory material or obtained by wrapping insulating cotton outside the working layer 201, and the specific manner is not limited herein. The crucible 1 may be a graphite crucible having good heat conductivity and high temperature resistance, or a container made of magnesia carbon bricks, which is not limited herein. The heat preservation pipe 2 may be formed by connecting a plurality of pipes in sequence, or may be an integrated pipe, and is not limited herein.

In order to further ensure the temperature of the welding liquid and avoid the solidification thereof, referring to fig. 2, in this embodiment, a heating layer 203 may be further disposed between the working layer 201 and the insulating layer 202 of the insulating tube 2 to heat the welding liquid, so as to ensure the smooth proceeding of the self-propagating welding in cold winter.

Specifically, in this embodiment, the heating layer 203 is composed of a heating wire, the heating wire may be surrounded on the periphery of the working layer 201, the heating wire may be surrounded clockwise or counterclockwise, or may be surrounded clockwise and counterclockwise in a mixed manner, and the surrounding manner is not limited; the surrounding density can also be adjusted according to the heat requirement, and is not limited herein.

Further, referring to fig. 2, in the present embodiment, the height of the insulating tube 2 is sequentially reduced along the direction from one end to the other end of the insulating tube 2, so that the welding liquid can flow from one end to the other end of the insulating tube 2 under the action of the height difference and smoothly enter the welding seam of the aluminum bus bar 7.

Preferably, in the present embodiment, the included angle between the middle part of the insulating tube 2 and the horizontal plane may be 35-55 °, and of course, other angles are also possible, which is not limited herein.

Further, referring to fig. 2, in the present embodiment, both ends of the thermal insulation pipe 2 are vertically disposed. One end of the heat preservation pipe 2 is vertically arranged, so that the heat preservation pipe 2 and the crucible 1 can be conveniently installed, and in actual operation, one end of the heat preservation pipe 2 can be realized by a joint; the other end of the heat preservation pipe 2 is vertically arranged, so that the welding liquid can vertically enter a welding seam of the aluminum bus 7 to be welded, the welding liquid cannot impact one side face of the welding seam, the welding liquid in the welding seam is uneven, and the welding quality of the welding seam is affected. The other end of the insulating tube 2 may be realized by a joint, and is not limited specifically.

Specifically, one end of the insulating tube 2 and the bottom of the crucible 1 may be connected by a screw.

Further, in this embodiment, with reference to fig. 2, a blocking plate 3 which can be melted by the solder liquid is disposed in the through hole 101 of the crucible 1, when the solder is ignited, the solder liquid is gradually melted into the solder liquid, and the blocking plate 3 can be melted by the solder liquid with high temperature, so that the solder liquid enters the heat preservation pipe 2. The baffle 3 may be made of a metal with a relatively low melting point, such as aluminum, although other materials may be used, and are not limited herein.

In order to facilitate taking out the crucible 1, in the present embodiment, referring to fig. 2, the outer side of the crucible 1 may be provided with two handles 4, and the handles 4 may be provided.

Further, in this embodiment, referring to fig. 1, the apparatus may further include a vehicle body 5, one end of the crucible 1 and the thermal insulation tube 2 is disposed on the vehicle body 5, the other end of the thermal insulation tube extends out of the vehicle body 5, and the bottom of the vehicle body 5 is provided with a roller 6. On one hand, the vehicle body 5 can support the heat preservation pipe 2 which is obliquely arranged and the crucible 1 which needs to be placed higher than the heat preservation pipe 2, so that a height difference which is beneficial to the circulation of the welding liquid is formed; on the other hand, the arrangement of the vehicle body 5 is also convenient for moving the crucible 1, and the workload of operators is reduced. In addition, a positioning groove can be arranged at the contact position of the car body 5 and the heat preservation pipe 2, so that the heat preservation pipe 2 is prevented from sliding. The vehicle body 5 may be a frame formed of a steel structure.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A welding device for welding aluminum bus bars, the device comprising:

2. The welding device of claim 1, wherein a heating layer is disposed between the working layer and the insulating layer of the insulating tube.

3. A welding device according to claim 2, wherein said heating layer is composed of heating wires.

4. The welding apparatus as claimed in claim 1, wherein the insulating tube is reduced in height in a direction from one end of the insulating tube to the other end thereof.

5. A welding device according to claim 4, characterized in that the angle between the middle of the insulating tube and the horizontal plane is 35-55 °.

6. The welding device of claim 4, wherein both ends of the insulating tube are vertically disposed.

7. A welding device as claimed in claim 4, wherein one end of said holding tube is threadedly connected to the bottom of said crucible.

8. A welding apparatus as claimed in any one of claims 1 to 7, wherein the through-hole of the crucible is provided with a baffle which is meltable by the welding liquid.

9. A welding device as claimed in claim 8, wherein a handle is provided on the outside of the crucible.

10. The welding device according to claim 8, further comprising a vehicle body, wherein one end of the crucible and one end of the heat-insulating tube are arranged on the vehicle body, the other end of the heat-insulating tube extends out of the vehicle body, and rollers are arranged at the bottom of the vehicle body.