CN102170078A

CN102170078A - Electric brush

Info

Publication number: CN102170078A
Application number: CN2010105627020A
Authority: CN
Inventors: 娄霆; 武传华; 陆后兵; 王俊
Original assignee: Hefei Baisheng Science and Technology Development Co Ltd
Current assignee: Hefei Baisheng Science and Technology Development Co Ltd
Priority date: 2010-11-27
Filing date: 2010-11-27
Publication date: 2011-08-31
Anticipated expiration: 2030-11-27
Also published as: CN102170078B

Abstract

The invention belongs to the field of electric elements, in particular relates to an electric brush. The electric brush comprises an electric brush mounting bracket and a brush body which is embedded in the electric brush mounting bracket; the brush body is an elastic conducting screw rod; a free end which is suspended on the brush body and a corresponding conducting ring on a slip ring form contact type sliding fit; and one end, which is embedded in the electric brush mounting bracket, of the brush body is connected with a lead to an external device. The electric brush has the advantages that the service life is long, the electric signal transmission is stable and reliable, and the wear rate is low.

Description

A kind of brush

Technical field

The invention belongs to the force device field, be specifically related to a kind of electricity of caliper and brush of signal transmission of being used for.

Background technology

Brush is mounted on the static element and relies on the brush brush body to do sliding contact with movement parts and form electricity and a kind of conductive component that signal is connected.In existing brush, the brush brush body all is to rely on compression spring to reach and the slip ring contact-making surface compresses to cooperate and reaches the purpose that is electrically connected between static element and movement parts usually.And in the measuring instrument field, it is the great difficult problem that caliper is rotated in puzzlement that electricity between the installation base plate of rotation in the caliper and rotating chassis and signal are connected always, use brushgear then can effectively improve this class situation, the major defect of existing brushgear shows the following aspects: at first, because slip ring generally all is the affixed cantilever-shaped structure of an end, when equipment normally moves, the shake amplitude of inevitable slip ring, frequency can be very high, the compression spring of conventional brush can't respond at all, therefore cause the loose contact of brush and slip ring, so cause serious sparking, cause the slip ring ablated surface, brush also damages thereupon; Secondly, existing brush brush body all is the tabular composition that is spaced of bar of hard usually, and it is followed the equipment running can swipe the slip ring contact-making surface and produces a large amount of frictional noises, though can select for use electrographite brush to reduce operating noise, but the wearing and tearing of brush are big, and the life-span characteristic of weak point is still inevitable; At last, the electrographite brush of traditional structure is because the height wearing and tearing of brush itself, can produce a lot of carbon dusts, be scattered between each phase-contact surface of slip ring of insulation, as easy as rolling off a log generation slip ring phase fault and cause ground connection, thereby cause the thorough damage of slip ring system, the serious line fault that also can cause whole equipment.

Summary of the invention

The brush that the purpose of this invention is to provide a kind of long service life, its signal of telecommunication transmission is reliable and stable and wear rate is low.

For achieving the above object, the present invention has adopted following technical scheme: a kind of brush, comprise the brush fixed mount and be embedded at brush body on the brush fixed mount, described brush body is the elastic conduction screw mandrel, constitute contact on free end that suspends on the brush body and the slip ring between the conducting ring of correspondence and be slidingly matched, the end connection that is embedded on the brush fixed mount of described brush body goes between to external equipment.

Beneficial effect of the present invention is: after adopting said structure, cancellation is shaken compression spring that motion frequently is difficult to respond and directly brush body is selected for use the elastic conduction screw mandrel height, thereby the free end that suspends on the assurance brush body is fitted on the conducting ring contact-making surface of slip ring all the time, guarantee the reliable and stable of its signal of telecommunication transmission, simultaneously, contact sliding friction for soft between the conducting ring contact-making surface of elastic conduction screw mandrel and slip ring, than existing hard strip brush, it is reliable to conflict therebetween, it is lower to wear and tear, and noise is also minimum.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a front view of the present invention;

Fig. 3 is the partial enlarged drawing of Fig. 2;

Fig. 4 is a brush fixed rack structure schematic diagram;

Fig. 5 removes behind the riser and the slip ring installation diagram for the present invention.

Embodiment

A kind of brush, comprise brush fixed mount 11 and be embedded at brush body 12 on the brush fixed mount 11, described brush body 12 is the elastic conduction screw mandrel, 21 formations of conducting ring contact corresponding on free end that suspends on the described brush body 12 and the slip ring 20 is slidingly matched, the end connection that is embedded on the brush fixed mount 11 of described brush body 12 goes between to external equipment, as Fig. 1-2 and shown in Figure 5.

As the present invention further optimization scheme, brush body 12 is arranged the wire harness boundling that constitutes at interval for unit brush body 121, constitute one-to-one relationship between described unit brush body 121 each phase-contact surface with the slip ring 20 that matches with it, thereby the brush of realizing being installed on the static element 10 cooperates with the sliding contact of 20 on slip ring on being installed in movement parts, and realize that between the two electricity and signal connect, as Fig. 1 and shown in Figure 5.

Further, be reliable contact of assurance brush body 12 with 21 of slip ring 20 conducting rings, brush body 12 of the present invention be preferably unit brush body 121 evenly arrange at interval and constitute be plane wire harness boundling, promptly the wire harness boundling that constituted of unit brush body 121 is in the same plane, shown in Fig. 1-2.

Further, it is tabular that the profile of described brush fixed mount 11 is bar, and described brush body 12 is arranged on the side plate face of brush fixed mount 11, shown in Fig. 1-2.Simultaneously, be to guarantee

brush body

12 and 21 further reliable fit of conducting ring, described brush body 12 is two groups and is " eight " font symmetric arrangement of outer expanding shape, thereby it is reliable and stable to have guaranteed that the signal of telecommunication transmits.

Unit brush body 121 can be realized its function by multiple mode, and as the present invention further optimization scheme, unit brush body 121 is constituted by the finer wire more than, and as shown in Figure 3, the present invention is preferably 5-10 root finer wire and constitutes.Because unit brush body 121 is the fixing shape structure that suspends of an end, for preventing that steel wire from too disperseing, the root of described unit brush body 121 is provided with and is used for preventing that the generation of stop element brush body 121 roots extends out restraint device 122, described restraint device 122 is the helical form that cannula-like or finer wire are entwined, the leading section that this kind structure also makes unit brush body 121 be free projecting end produces nature and extends out, thereby it is produced with 21 of the conducting rings of slip ring 20 better contact effect, then make its signal of telecommunication transmission reliable and stable further, as shown in Figure 3, the helical form of using finer wire to be entwined that further is preferably of the present utility model, finer wire can select for use wherein one or more steel wire in the unit brush body 121 to get final product, thereby also makes its structure simpler when guaranteeing constraint.The unit brush body 121 of the formation brush body 12 here comprises with power line and being connected and the two parts that are connected with holding wire.

As the present invention further optimization scheme, consider that brush fixed mount 11 promptly installs being connected between matrix with static element, as Fig. 1-2 and shown in Figure 4, brush 10 also comprises the riser 13 with brush fixed mount 11 Joints, the vertical brush fixed mount 11 plate faces of the plate face of described riser 13 are provided with, described riser 13 lays respectively at brush fixed mount 11 plate face both sides with brush body 12 directions, simultaneously, laterally offer on the described riser 13 and be used for and the affixed mounting hole 131 of matrix is installed, described mounting hole 131 runs through riser 13 plate face settings.In addition, mounting hole 131 its length directions are vertical with brush fixed mount 11 plate faces, thereby realized the upper-lower position controllability of the relative brush fixed mount 11 plate faces of whole brush 10, and allocating for the installation of brush 10 provides convenience, as Fig. 1-2 and Fig. 4.

As Fig. 1 and shown in Figure 4, riser 13 integral body of the present invention form for the batten bending, for further realizing the reliably affixed of 11 of riser 13 and brush fixed mounts, described riser 13 comprises flat part 132 and kink 133, described kink 133 forms for riser 13 plate face bottom bifurcateds also bend to postpone, its bending joint portion is rectangular, and kink 133 holder supports also are fixed in the minor face both ends that are the tabular brush fixed mount 11 of bar.

As shown in Figure 5, the minor face both ends of brush fixed mount 11 offer the waist shape installing hole 111 that runs through the plate face, the length direction of described waist shape installing hole 111 is parallel with the minor face of brush fixed mount 11, the kink correspondence of described riser 13 is provided with installing hole 135, both bolts are affixed, thereby realized that brush 10 integral body are with respect to the position adjustability on the minor face parallel direction of brush fixed mount 11.

Further, also be provided with alignment pin 134 on the kink of riser 13, to be used for the installing and locating of 11 of riser 13 and brush fixed mounts, as shown in Figure 4, simultaneously, the also corresponding location hole that cooperates with it that offers of corresponding position on the described brush fixed mount 11, for not influencing brush 10 integral body with respect to the position adjustability on the minor face parallel direction of brush fixed mount 11, described location hole is a mounting hole location hole 112, described waist shape location hole 112 parallel waist shape installing holes 111 are provided with, and concrete cooperation is installed relation as shown in Figure 1.

By above-mentioned governor motion, thereby realized the position adjustability of the above-below direction of the parallel direction of brush body 12 and relative brush fixed mount 11 minor faces of slip ring 20 and its plate face, for 20 on brush 10 and slip ring reliable contacts and cooperation provides assurance.

Claims

1. brush, it is characterized in that: described brush (10) comprises brush fixed mount (11) and is embedded at brush body (12) on the brush fixed mount (11), described brush body (12) is the elastic conduction screw mandrel, constitute contact between the last corresponding conducting ring (21) of free end that suspends on the described brush body (12) and slip ring (20) and be slidingly matched, the end connection that is embedded on the brush fixed mount (11) of described brush body (12) goes between to external equipment.

2. brush according to claim 1, it is characterized in that: described brush body (12) is arranged the wire harness boundling that constitutes at interval for unit brush body (121), constitutes one-to-one relationship between described unit brush body (121) each phase-contact surface with the slip ring (20) that matches with it.

3. brush according to claim 2 is characterized in that: described brush body (12) is evenly arranged the plane wire harness boundling that is that constitutes at interval for unit brush body (121).

4. according to claim 2 or 3 described brushes, it is characterized in that: it is tabular that described brush fixed mount (11) profile is bar, described brush body (12) is arranged on the side plate face of brush fixed mount (11), and described brush body (12) is two groups and is " eight " font symmetric arrangement of outer expanding shape.

5. according to claim 2 or 3 described brushes, it is characterized in that: described unit brush body (121) is that the finer wire more than constitutes, the root of described unit brush body (121) is provided with and is used for the restraint device (122) that anti-stop element brush body (121) root extends out, described restraint device (122) is the helical form that cannula-like or finer wire are entwined, and the leading section of described brush body (12) is free projecting end.

6. according to claim 2 or 3 described brushes, it is characterized in that: the unit brush body (121) of described formation brush body (12) comprises with power line and being connected and the two parts that are connected with holding wire.

7. brush according to claim 4, it is characterized in that: described brush (10) also comprises the riser (13) with brush fixed mount (11) Joint, the vertical brush fixed mount of the plate face of described riser (13) (11) plate face is provided with, described riser (13) lays respectively at brush fixed mount (11) plate face both sides with brush body (12) direction, laterally offer on the described riser (13) and be used for and the affixed mounting hole (131) of matrix is installed, described mounting hole (131) runs through the setting of riser (13) plate face.

8. brush according to claim 7 is characterized in that: its length direction of described mounting hole (131) is vertical with brush fixed mount (11) plate face.

9. brush according to claim 7, it is characterized in that: described riser (13) is whole to form for batten bends, described riser (13) comprises flat part (132) and kink (133), described kink (133) forms for riser (13) plate face bottom bifurcated also bends to postpone, its bending joint portion is rectangular, and described kink (133) holder support also is fixed in the minor face both ends that are the tabular brush fixed mount (11) of bar.

10. brush according to claim 9, it is characterized in that: the minor face both ends of described brush fixed mount (11) offer the waist shape installing hole (111) that runs through the plate face, the length direction of described waist shape installing hole (111) is parallel with the minor face of brush fixed mount (11), the kink (133) of described riser (13) is gone up correspondence and is provided with installing hole (135), and both bolts are affixed.

11. brush according to claim 10, it is characterized in that: also be provided with alignment pin (134) on the kink (133) of described riser (13), described brush fixed mount (11) is gone up the also corresponding waist shape location hole (112) that cooperates with it that offers of corresponding position, and described waist shape location hole (112) parallel waist shape installing hole (111) is provided with.