CN102074871A

CN102074871A - Carbon brush structure of collecting ring

Info

Publication number: CN102074871A
Application number: CN2009102228187A
Authority: CN
Inventors: 游孟萩; 廖树城
Original assignee: LONG HAWN ENTERPRISE CO Ltd
Current assignee: LONG HAWN ENTERPRISE CO Ltd
Priority date: 2009-11-19
Filing date: 2009-11-19
Publication date: 2011-05-25
Anticipated expiration: 2029-11-19
Also published as: CN102074871B

Abstract

The invention discloses a carbon brush structure of a collecting ring. The carbon brush structure comprises a base, two carbon brushes and two bias voltage pieces, wherein the base is provided with two guide rails; the two carbon brushes are arranged on the guide rails of the base respectively and can move along the guide rails; the two bias voltage pieces act on the two carbon brushes respectively, drive the two carbon brushes to move towards a conducting ring of the collecting ring and keep the two carbon brushes in contact with the conducting ring. The two guide rails pass through the circle center of the conducting ring, so that the carbon brushes are prevented from jumping and are worn uniformly.

Description

The carbon brush structure of collector ring

Technical field

The present invention relates to collector ring, the more detailed carbon brush structure that is meant a kind of collector ring.

Background technology

Existing collector ring mainly has a rotatable axle, and spacer sleeve is provided with conducting ring and dead ring on it, and some carbon brush modules, is surrounded on these conducting rings, is the state that is electrically conducted with these conducting rings.Power supply can conduct to the conducting ring of rotation through the carbon brush module.

Fig. 4 shows a kind of existing carbon brush module 50, and it has a pedestal 52, is fixed on the pole 54, two swing arms 56, be articulated in two ends, two carbon brush 58 of this pedestal 52, be individually fixed in the inboard of this two swing arm 56, and a spring 60, two ends connect this two swing arm 56.By the effect of this spring 60, this two carbon brush 58 can be remained on and conducting ring 62 state of contact.

Under carbon brush 58 unworn states, as shown in Figure 4, the direction that carbon brush 58 acts on the strength of conducting ring 62 is perpendicular to swing arm 56, and points to the center of circle C of conducting ring 62.After using a period of time, carbon brush 58 can wear and tear, and forms state as shown in Figure 5.After carbon brush 58 wearing and tearing, this spring 60 can be bestowed swing arm 56 1 power, makes its inside pivot put a predetermined angular, and makes carbon brush 58 still be maintained at and conducting ring 62 state of contact.Under this state, we find to have following problem:

First for after carbon brush 58 wearing and tearing, and the direction that carbon brush 58 acts on the strength F of conducting ring still is perpendicular to swing arm 56, but no longer points to the center of circle C of conducting ring 62.In other words, this strength F can be decomposed into forward component Fy and the tangential tangent line component Fx that points to center of circle C.Under this state, pushing and pressing carbon brush 58 makes it overlay forward component Fy in conducting ring 62 surfaces, and has increased tangent line component Fx, so can cause the situation that carbon brush is beated when conducting ring 62 rotates.When carbon brush 58 is beated, can produce the bad situation that electric current is unstable and discharge.Secondly, carbon brush 58 is uneven state wearing and tearing, need change carbon brush when the state of the more side generation thickness deficiency of wearing and tearing, even if the more side of wearing and tearing still has suitable thickness.This causes the waste of material virtually.

Summary of the invention

Main purpose of the present invention is to provide a kind of carbon brush structure of collector ring, produces the chance of beating even it also can reduce carbon brush under the state of carbon brush wearing and tearing.

Secondary objective of the present invention is to provide a kind of carbon brush structure of collector ring, and its carbon brush can produce uniform abrasion phenomenon.

Edge is to reach above-mentioned purpose, and the carbon brush structure of collector ring provided by the present invention includes: a pedestal has a guide rail on it; One carbon brush is arranged on the guide rail of this pedestal, can move along this guide rail, and the conducting ring of the nearly collector ring of a termination of this conduit, the other end are then away from the conducting ring of collector ring; And a bias piece, act on this carbon brush, its conducting ring towards collector ring is moved, make this carbon brush keep and this conducting ring state of contact.

Description of drawings

Fig. 1 is the exploded view of a preferred embodiment of the present invention;

Fig. 2 is the present invention's one preferable sharp front view, unworn state of demonstration carbon brush implemented;

Fig. 3 is the present invention's one preferable sharp front view, state of demonstration carbon brush wearing and tearing implemented;

Fig. 4 is the structure of existing collector ring; And

Fig. 5 is for having in the collector ring structure state after the carbon brush wearing and tearing now.

[main element symbol description]

12 substrates of 10 pedestals

14 supports, 16 axis holes

18 poles, 20 bolts

22 nuts, 24 electric wires

26,28 rivets, 30 guide rails (pipeline)

32 guide grooves, 34 stop sections

36 carbon brush, 38 electric wires (stop part)

40 bias pieces, 42 conducting rings

C conducting ring center of circle F power

50 existing carbon brush module 52 pedestals

56 swing arms of 54 poles

58 carbon brush, 60 springs

62 conducting ring F power

Fy forward component Fx tangent line component

The C conducting ring center of circle

Embodiment

See also Fig. 1 and shown in Figure 2, the carbon brush structure of the collector ring that a preferred embodiment of the present invention provided mainly is made up of a pedestal 10, two carbon brush 36 and two bias pieces.

This pedestal 10 has a substrate 12 and two supports 14.This substrate 12 has an axis hole 16, in order to passing a pole 18, and utilizes a bolt 20 and nut 22 this substrate 12 to be fixed in the precalculated position of collector ring.This bolt 20 and nut 22 and fixing for an electric wire 24 are for being connected to an external circuit (not shown).This two support 14 utilizes two

rivets

26,28 to be fixed in the both sides of this substrate 12 respectively, and is the crooked of a predetermined angular.The outer end of each support 14 has a guide rail 30.In the present embodiment, guide rail 30 is the rectangular duct of open shape for two ends, and offers a guide groove 32 on the sidewall of pipeline 30.This guide groove 32 begins the length that about 3/4 pipeline is stretched on inside edge by the outer end of pipeline 30, forms a stop section 34 with the inner at guide groove 32.

This two carbon brush 36 is long rectangle graphite block body, is installed in this two pipeline 30.Have a hole on each carbon brush 36, insert fixing for an electric wire 38.And the other end of electric wire 38 is connected to this bolt 20, makes this two carbon brush 36 be the state that connects with the electric wire 24 that is connected to external circuit.This electric wire 38 passes guide groove 32, and just this electric wire 38 also has the effect of stop part, when touching the stop section 34 of pipeline 30, can make carbon brush 36 can't continue to move down.

In the present embodiment, this two bias piece 40 is a torque spring, and its central spire is installed on the rivet 26 formed pillars that connect substrate 12 and support 14, and two ends are resisted against respectively on substrate 12 and the carbon brush 36.

See also shown in Figure 2ly, this two bias piece 40 these two carbon brush 36 of pushing and pressing move towards conducting ring 42, and this two carbon brush 36 can be remained on and conducting ring 42 state of contact.The trend of this two guide rail 30 is designed to the center of circle C through this conducting ring 42, and just carbon brush 36 only is restricted to and can moves along the path straight line by conducting ring 42 center of circle C.Therefore, even after using 36 wearing and tearing of a period of time carbon brush, as shown in Figure 3, the direction that this two carbon brush 36 acts on the strength F of this conducting ring 42 is still the center of circle C that points to this conducting ring 42, can not produce tangent line component, thereby reduce the chance that carbon brush 36 generations are beated.In addition, under this state, the abrasion of carbon brush 36 are uniformly, with the waste of material problem of avoiding irregular wear to be brought.

The above only is the preferable possible embodiments of the present invention, uses the equivalent structure variation that specification of the present invention and claim are done such as, ought to be included in the claim of the present invention.

Claims

1. the carbon brush structure of a collector ring is characterized in that including:

One pedestal has a guide rail on it;

One carbon brush is arranged on the guide rail of this pedestal, can move along this guide rail, and the conducting ring of the nearly collector ring of a termination of this conduit, the other end are then away from the conducting ring of collector ring; And

One bias piece acts on this carbon brush, and its conducting ring towards collector ring is moved, and makes this carbon brush keep and this conducting ring state of contact.

2. the carbon brush structure of collector ring as claimed in claim 1 is characterized in that, the guide rail of this pedestal is a pipeline, and this carbon brush is installed in this pipeline, moves along this pipeline.

3. the carbon brush structure of collector ring as claimed in claim 2 is characterized in that, the wall of this pipeline is provided with a guide groove, and an end of this guide groove has a stop section; This carbon brush is provided with a stop part, passes this guide groove.

4. the carbon brush structure of collector ring as claimed in claim 3 is characterized in that, the stop part of this carbon brush is an electric wire, passes this guide groove and is connected to an external circuit.

5. the carbon brush structure of collector ring as claimed in claim 3 is characterized in that, this bias piece is a torque spring, and its central spire is installed on the jack-post of this pedestal, and an end is resisted against this pedestal, and the other end is resisted against on this carbon brush via this guide groove.

6. the carbon brush structure of collector ring as claimed in claim 1 is characterized in that, this pedestal has a substrate, has an axis hole on it being fixed on the pole, and a support, is fixed in this substrate and is a predetermined angular crooked, and it is provided with this guide rail.

7. the carbon brush structure of collector ring as claimed in claim 6 is characterized in that, this support is connected with this substrate by a rivet, and this rivet has a jack-post in order to install this bias piece.

8. the carbon brush structure of collector ring as claimed in claim 1, wherein this carbon brush is provided with a stop part, when with after a stop section contacts, can stop this carbon brush and move.

9. the carbon brush structure of collector ring as claimed in claim 1 is characterized in that, this stop part is an electric wire, is connected to an external circuit.。

10. the carbon brush structure of collector ring as claimed in claim 1 is characterized in that, the bearing of trend of this guide rail can be through the center of circle of this conducting ring.