CN2766421Y

CN2766421Y - Center slipping electric ring

Info

Publication number: CN2766421Y
Application number: CN 200420113832
Authority: CN
Inventors: 吴代明
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-31
Filing date: 2004-12-31
Publication date: 2006-03-22
Anticipated expiration: 2014-12-31

Abstract

The utility model discloses a center sliding electricity conducting ring which comprises a cover casing (12), conducting wires (6, 10), an outer ring installing disk (1), a center installing ring (2), a plurality of metal sliding rings, a plurality of interval insulating rings (9), a plurality of metal forks and a plurality of insulating sheets (5), wherein the metal sliding ring is a metal sliding ring (7), and the external circumference of the metal sliding ring (7) is provided with a plurality of grooves; the metal forks are a plurality of metal forks (3) which are matched with the metal sliding rings (7) and are connected with the metal sliding rings (7) into a whole, and the metal sliding ring (7) is provided with a plurality of grooves; a plurality of metal forks (3) are tangential with the metal sliding rings (7) which are provided with a plurality of grooves. The center sliding electricity conducting ring solves the problem of great working current needed by an upper half part. The center sliding electricity conducting ring has the advantages of material saving and height reduction. Simultaneously, the stability, the reliability and the safety of the operation of the utility model are greatly improved.

Description

The central slide conducting ring

Technical field

The utility model relates to a kind of part that gets on and off such as autocrane, excavator that is used for needs the power connection equipment of counterrotating engineering machinery, especially a kind of central slide conducting ring that transmits power supply to the engineering machinery upper frame part.

Background technology

At present, engineering machinery such as autocrane, excavator, operating room is located at upper frame part, when work, get on the bus and to rotate with the centre of gyration is relative with lower frame part, and upper frame part (operating room) power supply is to provide by the central slide conducting ring (also claim the center conducting ring assembly or claim the slide connector assembly, down together) that is contained in the centre of gyration.To give constructing operation chamber installing big load electrical equipment or air-conditioning equipment, must transmit separately or respectively by the central slide conducting ring from handlebar D.C. high-current down (as direct voltage 24V, big electric current more than electric current 30A～150A) and supply with the use of getting on the bus.

The central slide conducting ring of prior art comprises case, be installed in two mounting discs on the base of engineering machinery and the centre of gyration of getting on the bus respectively, a plurality of circular arc list groove metal slip ring spacer insulator ring stacks are installed in the mounting disc of center, there is a plurality of match with it and the circular wall scroll metallic tines spacer insulator sheet stack of sliding fit is installed in the outer shroud mounting disc in the described single groove metal slip ring outside, and two strands of leads connect the electrical equipment (promptly employing is the monocycle passage) of metallic tines, metal slip ring and base power supply and operating room respectively.

There is following defective in this central slide conducting ring: allow operating current little, overcurrent capability is poor, can not satisfy the needs of operating room operate as normal.If satisfy the needs that resemble this class large-current electric device of air-conditioning, keep use at the parallel connection outside multiple tracks monocycle passage of central slide conducting ring often, when monocycle passage and monocycle interchannel and tie, because parallel wire, parallel connection are put more, there is certain resistance difference in parallel wire resistance with in parallel putting between the resistance, the electric current of distributing on each monocycle passage in parallel is just inconsistent, often cause certain monocycle passage to bear the operation of several times of overcurrent and damaged, cause other each monocycle passage in parallel overcurrent and damaging in succession then.

If strengthen the diameter of circular wall scroll metallic tines and the radius of circular arc list groove, the volume of central slide conducting ring is strengthened, and the permission attaching electric device space of the centre of gyration of getting on the bus is short narrow, promptly the space does not allow the volume of central slide conducting ring to increase increasing; Simultaneously,, then increase consumptive material, strengthened cost if strengthen above-mentioned diameter and radius.

The utility model content

The technical problems to be solved in the utility model is, overcome the defective of above prior art, a kind of problem that had both solved the big electric current of the required work of upper frame part is provided, save material, reduction (the central slide conducting ring) again highly, improve the central slide conducting ring of stability, reliability and the fail safe of its operation simultaneously.

Technical solution of the present utility model is, comprise case, lead, center mounting disc and outer shroud mounting disc, a plurality of metal slip ring and spacer insulator ring and a plurality of metallic tines and insulating trip, described metal slip ring refers to that its excircle is provided with the metal slip ring of a plurality of grooves, the many strip metals fork that the interdigital and described metal slip ring that is provided with a plurality of grooves of described metal matches and is connected as a single entity, described many strip metals forks are tangent with the described metal slip ring that is provided with a plurality of grooves.

As improvement, in this center conducting ring, both can adorn the single groove metal slip ring and the wall scroll metallic tines of prior art, can adorn multiple-grooved metal slip ring of the present utility model and many strip metals fork again.

After adopting above structure, the utility model is compared with the central slide conducting ring of prior art, has following remarkable advantage:

Because multiple-grooved metal slip ring has enlarged and the tangent contact area of many strip metal forks, it allows the operating current ability to be multiplied, and (adopt the double flute copper ring to allow electric current 30A as a passage, superposeing than two passage list groove copper rings allows electric current 2 * 15A to save an intermediate insulation rubber cushion, thickness and unnecessary rigging error.By parity of reasoning, and one six groove copper ring of passage copper corresponding with it is pitched structure, has just satisfied the needs of the big electric current of 90A air-conditioning of getting on the bus, and saved five intermediate insulation rubber cushions and added thickness space and unnecessary error when six single groove copper rings superpose).When having realized getting on and off relatively rotating part thus in use heart conducting ring transmits the little electric current of multichannel, need not in parallel just can transmit the purpose of the big electric current of multichannel simultaneously.

By contrast, when allowing operating current identical, reduce highly significantly (only account for ten road list groove copper ring channel heights half) as four road double flute copper ring passages, thereby promptly solved the problem of the big electric current of the required work of upper frame part, saved material (having reduced height) again, so, increased substantially the flexibility of stability, reliability, fail safe and the utilization of this central slide conducting ring work.

Figure of description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Fig. 1 is (take away case after overlook) structural representation of this central slide conducting ring.

Fig. 2 is the A-A cutaway view among Fig. 1.

Fig. 3 is the structural representation that two strip metal forks of this central slide conducting ring cooperate with the double flute becket.

Fig. 4 is the B-B cutaway view of Fig. 3.

Embodiment

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, outer shroud mounting disc 1 and center mounting disc 2 can be rotated mutually around same axis.A plurality of metal slip rings and dead ring 9 stack isolation are installed in center mounting disc 2, and metal slip ring and dead ring 9 centers are provided with the hole of wearing lead 10, are equipped with lead 10 on each metal slip ring respectively and link to each other with external power source (or electrical equipment).The supporting metallic tines of a plurality of and described metal slip ring is installed in outer shroud mounting disc 1, and metallic tines is close on the outer rim of metal slip ring.Described metallic tines is isolated by insulating trip 5 stacks, all is equipped with lead 6 on each metallic tines and is connected with outside electrical equipment (or power supply).Described metal slip ring refers to that its excircle is provided with the metal slip ring 8 of a groove 13; The wall scroll metallic tines 4 that the metal slip ring 8 of the interdigital and described groove 13 of described metal matches.

Defensive case 12 is housed in the outer shroud mounting disc 1.Outer shroud mounting disc 1 is installed on the base (or the centre of gyration of getting on the bus) of (autocrane or other) engineering truck by four screws by bolt: center mounting disc 2 is connected on the centre of gyration of getting on the bus (or base of engineering truck) of engineering truck by rocking arm 11.When getting on the bus of autocrane or other engineering truck rotated with respect to base, outer shroud mounting disc 1 and center mounting disc 2 were also just along with relative rotation.When mounting disc 1 during with mounting disc 2 relative rotations, electric current can transmit between metallic tines 4 and metal slip ring 8 incessantly.

It more than is prior art.

The characteristics of the utility model center conducting ring are, described metal slip ring refers to that its excircle is provided with the metal slip ring 7 of a plurality of grooves 13, described metal is interdigital and described to be provided with many strip metals forks 3 that the metal slip ring 7 of a plurality of grooves 13 is that match and be connected as a single entity, and described many strip metals forks 3 are tangent with the described metal slip ring 7 that is provided with a plurality of grooves 13.Described a plurality of groove 13 can adopt (as present embodiment) two grooves 13; Described many strip metal forks 3 can adopt two strip metals fork, 3 (as present embodiments).Described a plurality of groove 13 also can be three to six or six with upper groove 13; Described many strip metal forks 3 also can be three to six or six above metallic tines 3.Described metal slip ring 7 is cut the semicircle that is shaped as of its groove 13 open along center line, also can be certainly " V " shape,

Shape etc.; The shape of cross section of the every strip metal fork 3 that matches with it certainly, also can be triangle, quadrangle etc. for circular.Described many strip metals fork 3 is two places with described multiple-grooved metal slip ring 7 tangent places: the both sides that promptly multiple-grooved metal slip ring 7 excircles are relative are located.Described many strip metals fork 3 afterbodys that refer to many strip metals forks 3 that are connected as a single entity are welded on the sheet metal 14, sheet metal 14 afterbodys welding or with the lead 6 that is threaded.This central slide conducting ring can all adopt multiple-grooved, many metal slip ring 7 and metallic tines 3, also can adopt the metal slip ring 8 of single groove wall scroll and metallic tines 4 and multiple-grooved, many metal slip ring 7 and metallic tines 3 to mix installation (as figure l, shown in Figure 2).The thickness of described dead ring 9 and insulating trip 5 can be different (the ratio list groove single tines of the many forks of multiple-grooved thick).

Described wall scroll metallic tines 4 is also tangent with the described metal slip ring 8 that is provided with single groove.Described wall scroll metallic tines 4 also is two places with described single groove metal slip ring 8 tangent places: the place, both sides that promptly single groove metal slip ring 8 excircles are relative.Described metal slip ring 8 along center line cut open its groove 13 be shaped as semicircle (also can be " V " shape,

, shape etc.) shape of cross section of the every strip metal fork 4 that matches with it be circular (also can be triangle, quadrangle etc.).

Claims

1, a kind of central slide conducting ring, comprise case (12), lead (6,10), center mounting disc (2) and outer shroud mounting disc (1), a plurality of metal slip ring and spacer insulator ring (9) and a plurality of metallic tines and insulating trip (5), it is characterized in that: described metal slip ring refers to that its excircle is provided with the metal slip ring (7) of a plurality of grooves (13), the many strip metals forks (3) that the interdigital and described metal slip ring (7) that is provided with a plurality of grooves (13) of described metal matches and is connected as a single entity, described many strip metals forks (3) are tangent with the described metal slip ring (7) that is provided with a plurality of grooves (13).

2, conducting ring according to claim 1 is characterized in that: described a plurality of grooves (13) refer to two to six grooves (13); Described many strip metal forks (3) refer to two to six strip metals forks (3).

3, conducting ring according to claim 1 is characterized in that: described metal slip ring (7) is cut the semicircle that is shaped as of its groove (13) open along center line, and the shape of cross section of the every strip metal fork (3) that matches with it is for circular.

4, according to any one described conducting ring in the claim 1～3, it is characterized in that: described many strip metals forks (3) afterbody that refers to many strip metals forks (3) that is connected as a single entity is welded on the sheet metal (14), and sheet metal (14) afterbody connects lead (6).

5, conducting ring according to claim 4 is characterized in that: described many strip metal forks (3) are two places with the tangent place of described multiple-grooved metal slip ring (7): the place, both sides that promptly multiple-grooved metal slip ring (7) excircle is relative.