CN204633105U - Pipe welding machine Multi-point contact type welding current rotary conductive device - Google Patents

Abstract

A kind of pipe welding machine Multi-point contact type welding current rotary conductive device, comprise a rotor (5) and a fixed body (6), it is characterized in that: in rotor (5) and fixed body (6), one end face is established conducting ring (7), on another one end face, corresponding conducting ring (7) circumferentially establishes 6-20 conductive pole (8) in direction, one end end face of each conductive pole (8) towards conducting ring (7) as conductive contact surfaces, and effect has spring (9) on each conductive pole, spring force forces the conductive contact surfaces of conductive pole (8) to press on conducting ring (7) to form plane contact, each conductive pole (8) is electrically connected to each other and makes each guide pillar (8) be isopotential point.The plane contact that the utility model have employed 6-20 conductive pole and conducting ring is conducted electricity, and can not occur that electric current causes heating, spark phenomenon as traditional carbon brush, thus improves reliability and extend useful life.

Description

Pipe welding machine Multi-point contact type welding current rotary conductive device

Technical field

The utility model relates to field of welding devices, is specifically related to the welding current rotary conductive device on pipe welding machine.

Background technology

Tube-sheet Welding, as an important branch in welding profession, adopts TIG all positon tube plate welder (or claiming welding gun) mostly when automatic welding.Such welding machine can at welded piece, namely pipe and tube sheet relative position constant when, welding machine rifle head circumference rotates around tube center, realizes the automatic welding of single pipe and tube sheet.Such workpiece is heat exchanger, chemical equipment, boiler or the equipment such as water power, nuclear power mostly.

Typical traditional tube plate welder is primarily of compositions such as water, electricity and gas rotary switching device, welding current rotary conductive device, rotational motion mechanism, wire-feed motor, arc length, swing balladeur train, center positioning devices.Wherein welding current rotary conductive device determines this type of welding machine reliability and the key structure in useful life.

The welding current rotary conductive device of existing pipe welding machine (as tube plate welder), structure as shown in Figure 1 and Figure 2, comprise pneumoelectric mandrel 1, two carbon brush 2, fixture block 3 and spring 4 etc., described two carbon brush 2 one the first from left right sides are folded on the periphery of pneumoelectric mandrel 1, two carbon brush 2 are made to hold pneumoelectric mandrel 1 tightly by fixture block 3 and spring 4, during work, carbon brush 2 is relatively fixing, pneumoelectric mandrel 1 rotates, carbon brush 2 connects welding current, and welding current conducts on pneumoelectric mandrel 1 through the contact of carbon brush 2 gentle battery core axle 1 outer peripheral face.Although, should be that arc surface contacts with the face of arc surface theoretically between carbon brush 2 gentle battery core axle 1 outer peripheral face, but, because two arc surfaces are after reality processing, be difficult to accomplish completely isometrical, the circularity of its arc surface is difficult to ensure, actual result can become linear contact lay, and, because the restriction carbon brush 2 gentle battery core axle 1 of volume all will design small and exquisite, make conductive contact area not enough especially, add welding current very large (maximum current can reach about 250A ~ 300A), often scaling loss of striking sparks is there is because of loose contact between conductive contact surfaces in reality, therefore cause poor reliability, useful life is short.

Based on above deficiency, a large amount of improvement trial is doing in Xian Yeyou manufacturer, but great majority be take to improve parts machining accuracy, strengthen the measure such as conductive area, fundamentally can not overcome the above problems, therefore have too many improvement loseing for over ten years.

Summary of the invention

The purpose of this utility model is to provide a kind of pipe welding machine Multi-point contact type welding current rotary conductive device, and to solve easily loose contact between the conductive contact surfaces that exists in prior art, reliability is low, causes the problem that useful life is short.

For achieving the above object, the technical solution adopted in the utility model is: a kind of pipe welding machine Multi-point contact type welding current rotary conductive device, comprise a rotor and a fixed body, it is characterized in that: described rotor and fixed body are with end face relative engagement, in rotor and fixed body, one end face establishes conducting ring, on another one end face, corresponding conducting ring circumferentially establishes 6-20 conductive pole in direction, one end end face of described each conductive pole towards conducting ring as conductive contact surfaces, this conductive contact surfaces is plane, and effect has spring on each conductive pole, spring force forces the conductive contact surfaces of conductive pole to press on conducting ring to form plane contact, further, described each conductive pole is electrically connected to each other and makes each guide pillar be isopotential point.

In such scheme, described rotor comprises a rotor dead ring, described conductive pole is placed through on rotor dead ring along the thickness direction of rotor dead ring, the conductive contact surfaces of each conductive pole stretches out from the side towards fixed body of rotor dead ring, and the side of rotor dead ring fixed body dorsad sets firmly a collector ring, this collector ring is electrically connected with each conductive pole, collector ring is established a conductive contact.

In such scheme, described fixed body comprises an insulation annular lining dish, sets firmly described conducting ring, conducting ring is established a conductive contact in this insulation annular lining card to the side of rotor.

Further again, described welding current rotary conductive device also comprises an insulation annular seating, the annular lining dish of described insulation be fixed on insulation annular seating one end, and described rotor be embedded at insulation annular seating endoporus in, insulation annular seating the other end with end cap capping.

Because the utility model adopts technique scheme, bring following effect: the plane contact that have employed 6-20 conductive pole and conducting ring due to the utility model is conducted electricity, each conductive pole adopts spring pressurization, in use can ensure that each moment all has the conductive pole of 80% quantity to contact conducting ring all the time, and due to each conductive pole be isopotential point, therefore once certain conductive pole departs from conducting ring, voltage drop is produced between the anchor ring being also unlikely to conductive pole and conducting ring, so can not occur that electric current causes heating as traditional carbon brush, spark phenomenon, thus improve reliability and extend useful life.Further, be facet and large plane contact owing to being conductive pole and conducting ring, its contact-making surface machining accuracy is easily processed, and easily ensures the quality of products.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of prior art;

Fig. 2 is the complete section schematic front view of prior art;

Fig. 3 is the schematic perspective view of the utility model embodiment;

Fig. 4 is the schematic front view of the utility model embodiment;

Fig. 5 is the B-B cross-sectional schematic of Fig. 4;

Fig. 6 is the parts decomposition explosion schematic diagram of the utility model embodiment.

In above accompanying drawing: 1, electric mandrel; 2, carbon brush; 3, fixture block; 4; Spring; 5, rotor; 6, fixed body; 7, conducting ring; 8, conductive pole; 9, spring; 10, rotor dead ring; 11, collector ring; 12, insulate annular lining dish; 13, insulate annular seating; 14, water-cooling joint; 15, electric block is crossed; 16, electric wire pressing plate is collected; 17, cable crimp type terminal; 18, end cap.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described:

Embodiment: shown in Fig. 3-Fig. 6:

A kind of pipe welding machine Multi-point contact type welding current rotary conductive device, see shown in Fig. 3-Fig. 6, comprise rotor 5 and a fixed body 6, described rotor 5 and fixed body 6 are with end face relative engagement, in rotor 5 and fixed body 6, one end face is established conducting ring 7, on another one end face, corresponding conducting ring 7 circumferentially establishes 6-20 conductive pole 8 in direction, one end end face of described each conductive pole 8 towards conducting ring 7 as conductive contact surfaces, this conductive contact surfaces is plane, and effect has spring 9 on each conductive pole, spring 9 power forces the conductive contact surfaces of conductive pole 8 to press on conducting ring 7 to form plane contact, further, described each conductive pole 8 is electrically connected to each other and makes each guide pillar 8 be isopotential point.

Shown in Fig. 3-Fig. 6, described rotor 5 comprises a rotor dead ring 10, described conductive pole 8 is placed through on rotor dead ring 10 along the thickness direction of rotor dead ring 10, the conductive contact surfaces of each conductive pole 8 stretches out from the side towards fixed body 6 of rotor dead ring 10, and the side of rotor dead ring 10 fixed body 6 dorsad sets firmly a collector ring 11, this collector ring 11 is electrically connected with each conductive pole 8, collector ring 11 is established a conductive contact, this conductive contact specifically can comprise one and cross electric block 15 and be located at this and cross a water-cooling joint 14 on electric block 15.Each conductive pole is connected on collector ring 11 particular by wire, collector ring 11 is also provided with the collection electric wire pressing plate 16 of fixing cord.

Shown in Fig. 3-Fig. 6, described fixed body 6 comprises an insulation annular lining dish 12, and set firmly described conducting ring 7 at this insulation annular lining dish 12 towards the side of rotor 5, conducting ring 7 is established a conductive contact, this conductive contact can be specifically a cable crimp type terminal 17.

Shown in Fig. 3-Fig. 6, specifically, described welding current rotary conductive device also comprises an insulation annular seating 13, the annular lining dish 12 of described insulation is fixed on one end of insulation annular seating 13, and described rotor 5 is embedded in the endoporus of insulation annular seating 13, insulation annular seating 13 the other end with end cap 18 capping, rotor 5 and fixed body 6 are assembled into an overall ring bodies.

Shown in Fig. 3-Fig. 6, specifically, rotor dead ring 10 holds in the hole of each conductive pole 8 and be equipped with a spring 9 in the rear end of conductive pole 8, this spring 9 is stage clip, promoting conductive pole 8 with this presses on conducting ring 7, the form that arranges of this spring 9 is for illustrating, actual can also be spring leaf, extension spring etc. change.

The plane contact that the present embodiment have employed 6-20 conductive pole and conducting ring is conducted electricity, each conductive pole adopts spring pressurization, in use can ensure that each moment all has the conductive pole of 80% quantity to contact conducting ring all the time, and due to each conductive pole be isopotential point, therefore once certain conductive pole departs from conducting ring, voltage drop is produced between the anchor ring being also unlikely to conductive pole and conducting ring, so can not occur that as traditional carbon brush electric current causes heating, spark phenomenon, thus improve reliability and extend useful life.

Above-described embodiment, for illustrating, also can have following change in reality:

The position of described conducting ring 7 and conductive pole 8 can be exchanged, and can establish conducting ring 7 on the end face of rotor 5, and on the end face of fixed body 6, establish conductive pole 8, when namely working, conducting ring 7 rotates, and conductive pole maintains static.

Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection range of the present utility model.

Claims (4)

1. a pipe welding machine Multi-point contact type welding current rotary conductive device, comprise a rotor (5) and a fixed body (6), it is characterized in that: described rotor (5) and fixed body (6) are with end face relative engagement, in rotor (5) and fixed body (6), one end face is established conducting ring (7), on another one end face, corresponding conducting ring (7) circumferentially establishes 6-20 conductive pole (8) in direction, one end end face of described each conductive pole (8) towards conducting ring (7) as conductive contact surfaces, this conductive contact surfaces is plane, and effect has spring (9) on each conductive pole, spring force forces the conductive contact surfaces of conductive pole (8) to press on conducting ring (7) to form plane contact, further, described each conductive pole (8) is electrically connected to each other and makes each guide pillar (8) be isopotential point.

2. pipe welding machine Multi-point contact type welding current rotary conductive device according to claim 1, it is characterized in that: described rotor (5) comprises a rotor dead ring (10), described conductive pole (8) is placed through on rotor dead ring (10) along the thickness direction of rotor dead ring (10), the conductive contact surfaces of each conductive pole (8) stretches out from the side towards fixed body (6) of rotor dead ring (10), and the side of rotor dead ring (10) fixed body (6) dorsad sets firmly a collector ring (11), this collector ring (11) is electrically connected with each conductive pole (8), (11) establish a conductive contact to collector ring.

3. pipe welding machine Multi-point contact type welding current rotary conductive device according to claim 1 or 2, it is characterized in that: described fixed body (6) comprises insulation annular lining dish (12), set firmly described conducting ring (7) in this insulation annular lining dish (12) towards the side of rotor (5), (7) establish a conductive contact with conducting ring.

4. pipe welding machine Multi-point contact type welding current rotary conductive device according to claim 3, it is characterized in that: described welding current rotary conductive device also comprises an insulation annular seating (13), the annular lining dish (12) of described insulation is fixed on one end of insulation annular seating (13), and described rotor (5) be embedded at insulation annular seating (13) endoporus in, insulation annular seating (13) the other end with an end cap (18) capping.