CN218828335U - Arc-shaped locking brush holder - Google Patents

Arc-shaped locking brush holder Download PDF

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Publication number
CN218828335U
CN218828335U CN202223397521.4U CN202223397521U CN218828335U CN 218828335 U CN218828335 U CN 218828335U CN 202223397521 U CN202223397521 U CN 202223397521U CN 218828335 U CN218828335 U CN 218828335U
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China
Prior art keywords
cone angle
brush holder
plug
arc
angle plug
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Active
Application number
CN202223397521.4U
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Chinese (zh)
Inventor
姜会学
王宪春
庞大芳
白春红
张宁
梁诗迪
马宁
张健
于燊晖
梁忠国
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Ruojin Liaoning Electric Power Technology Development Co ltd
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Ruojin Liaoning Electric Power Technology Development Co ltd
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Priority to CN202223397521.4U priority Critical patent/CN218828335U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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Abstract

The utility model discloses an arc-shaped locking brush holder, including brush holder base, cone angle plug and brush box, the brush box sets up on the cone angle plug, is equipped with the plug holding tank on the brush holder base, and the cone angle plug can insert in the plug holding tank, and the both sides face of cone angle plug is first arcwall face, the arc line that first arcwall face and the intersecting line of the vertical cross-section that is on a parallel with cone angle plug terminal surface formed, and the circular arc center of arc line is located on the plane that the bottom surface of cone angle plug is located or is located the plane downside that the bottom surface of cone angle plug is located; the inner wall surfaces of the grooves on the two sides of the plug accommodating groove are second arc-shaped surfaces matched with the first arc-shaped surfaces. The utility model discloses an arc-shaped locking brush holder has reduced the auxiliary fitting between cone angle plug and the brush holder base, has improved the security of brush holder work, and the cone angle plug is stable with brush holder base mechanical cooperation, makes the brush holder move more steadily on the unit, simultaneously, has increased area of contact, and then has increased electrically conductive area of contact.

Description

Arc-shaped locking brush holder
Technical Field
The utility model belongs to the technical field of the electric power system technique and specifically relates to an arc-shaped locking brush holder.
Background
The brush holder is a mechanical guide groove which is used for containing and maintaining the position of the carbon brush in the brush motor. It is composed of brush box, spiral spring and pressing finger. A member for mounting the brush and keeping it in contact with the sliding surface under pressure.
The necessary conditions for the brush holder to work properly are: the brushes are positioned accurately, the contact should be tight and reliable, and there is no vibration at any operating speed. The structure of the brush holder should ensure that: the radial position of the brush on the surface of the rectifier; the pressure of the spring on the electric brush is uniform and does not change due to the abrasion of the electric brush; each part has high mechanical strength and stability of the reciprocating pendulum; reliable insulation of the casing and sufficient distance between the brush holder current-carrying portion and the surface of the commutator; in order to arrange the electric brush in a neutral way with accurate arrangement, the segment turning is required to be carried out along the tangential direction of the circumference of the commutator; wear stability, ease of inspection or replacement of major parts, and accessibility.
The old-fashioned combination brush holder built-up member is more, and parts such as screw can drop because of reasons such as vibration and cause the phenomenon that collecting system burns out, the unit shut down occasionally takes place in the course of the work, and the firm degree of connection installation and the area size of contact surface, the combination of conductive accessories in the combination brush holder all is the root that makes the electric current pass through and excitation system steady operation in addition, and old-fashioned combination brush holder takes place because of the contact surface is unstable and the combination area is little, and causes the system high temperature to move when bad.
SUMMERY OF THE UTILITY MODEL
The utility model provides a circular arc type locking brush holder to above-mentioned problem.
The utility model discloses a technical means as follows:
an arc-shaped locking brush holder comprises a brush holder base, a cone angle plug and a brush box, wherein the brush box is arranged on the cone angle plug, a plug accommodating groove is formed in the brush holder base, the cone angle plug can be inserted into the plug accommodating groove, two side faces of the cone angle plug are first arc-shaped faces, an arc line formed by the first arc-shaped faces and an intersection line of vertical sections parallel to the end face of the cone angle plug is formed, and the arc center of the arc line is positioned on a plane where the bottom face of the cone angle plug is positioned or positioned on the lower side of the plane where the bottom face of the cone angle plug is positioned;
the inner wall surfaces of the grooves on the two sides of the plug accommodating groove are second arc-shaped surfaces matched with the first arc-shaped surfaces.
Furthermore, the bottom surface of the taper angle plug is provided with a first contact surface which is in contact with the bottom surface of the plug accommodating groove, and the first contact surface is a conductive surface.
Furthermore, a first groove is machined in the bottom face of the taper angle plug.
Further, the arc center of the arc line is located on the center line of the bottom surface of the cone angle plug.
Furthermore, a brush box mounting protrusion is arranged on the top surface of the cone angle plug, and the horizontal projection area of the brush box mounting protrusion is smaller than the area of the top surface of the cone angle plug.
Furthermore, two edges of the insertion end of the brush box installation bulge are provided with cut angles.
Compared with the prior art, the utility model discloses an arc-shaped locking brush holder has following beneficial effect: the utility model discloses an arc-shaped locking brush holder is because the both sides face of cone angle plug is first arcwall face, and the circular arc center of arcwall face is located the plane that plug base located or is located this plane downside, be equipped with in the plug holding tank of brush holder base with first arcwall face complex second arcwall face, make cone angle plug insert back in the plug holding tank of brush holder base, the cone angle plug is under the effect of the locking force of horizontal direction, the effort that produces between first arcwall face and the second arcwall face, can compress tightly the cone angle plug in the plug holding tank in vertical direction, and then reduced the auxiliary assembly between cone angle plug and the brush holder base, the security of brush holder work has been improved, cone angle plug and brush holder base mechanical fit are stable, it is more steady to make the brush holder move on the unit, and simultaneously, adopt the arcwall face to be the contact surface, the contact area has been increased, and then conductive contact area has been increased, further improved brush holder job stabilization nature, thermal production has been reduced.
Drawings
Fig. 1 is a front view of a cone angle plug of an arc locking brush holder disclosed in the present invention;
fig. 2 is an axial view of the cone angle plug of the circular arc locking brush holder disclosed in the present invention;
fig. 3 is a top view of the cone angle plug of the circular arc locking brush holder disclosed in the present invention;
fig. 4 is a bottom view of the cone angle plug of the arc locking brush holder disclosed in the present invention;
fig. 5 is a front view of a brush holder base of the circular arc locking brush holder disclosed in the present invention;
fig. 6 is a top view of a brush holder base of the circular arc locking brush holder disclosed in the present invention;
fig. 7 is an axial view of a brush holder base of the arc-shaped locking brush holder disclosed in the present invention;
fig. 8 is a force analysis diagram of the brush holder base and the cone angle plug of the arc locking brush holder disclosed in the present invention, in which only the brush holder base is shown.
In the figure: 1. the brush holder base 10, the plug accommodating groove 11, the second arc-shaped surface 12 and the groove bottom surface of the plug accommodating groove; 2. cone angle plug, 20, first arc face, 21, arc line, 22, bottom face of cone angle plug, 23, first contact face, 24, first groove, 25, brush box mounting projection, 26, top face of cone angle plug, 27, cone angle plug end face, 28, chamfer.
Detailed Description
As shown in fig. 1 to 7, the utility model discloses an arc locking brush holder, including brush holder base 1, cone angle plug 2 and brush box, the brush box sets up on cone angle plug 2, be equipped with plug holding tank 10 on brush holder base 1, cone angle plug 2 can insert in plug holding tank 10, the both sides face of cone angle plug 2 is first arcwall face 20, the arc line 21 that first arcwall face 20 and the intersecting line of the vertical cross-section that is parallel to cone angle plug terminal surface 27 formed, the circular arc center Q of arc line 21 is located on the plane that bottom surface 22 of cone angle plug was located or is located the plane downside that bottom surface 22 of cone angle plug was located;
the inner wall surfaces of the two sides of the plug accommodating groove 10 are second arc surfaces 11 matched with the first arc surfaces 20.
Specifically, as shown in fig. 1, 2, 3 and 4, the taper angle plug 2 is a trapezoidal structure with a horizontal section being trapezoidal, and the taper angle plug is provided with a mounting hole fixedly connected with the brush box and a brush holder shaft mounting hole for mounting the brush holder shaft, and the like for mounting the brush box and the brush holder shaft. As shown in fig. 1, two side surfaces of the taper plug 2 are arc surfaces, a first arc surface and an arc line 21 (a bus of the arc surface) formed by an intersection line of vertical cross sections parallel to the taper angle plug end surface 27 are arc surfaces, and an arc center of the arc line 21 is located on a plane where a bottom surface 22 of the taper angle plug is located or located on a lower side of the plane where the bottom surface 22 of the taper angle plug is located;
as shown in fig. 5, 6 and 7, the brush holder base 1 is a rectangular parallelepiped structure, a plug receiving groove 10 is formed in the brush holder base 1, the plug receiving groove 10 is matched with the taper angle plug 2, and inner wall surfaces of grooves on two sides of the plug receiving groove 10 are second arc surfaces 11 matched with the first arc surfaces 20.
The utility model discloses an arc-shaped locking brush holder is because the both sides face of cone angle plug is the arcwall face, and the circular arc center Q of arcwall face is located the plane that plug base located or is located this plane downside, be equipped with in the plug holding tank of brush holder base with first arcwall face complex second arcwall face, as shown in fig. 8, back in the plug holding tank of brush holder base is inserted to cone angle plug, the cone angle plug is under the effect of horizontal direction's locking force, horizontal direction's locking force generally produces by the locking structure between brush holder axle and the brush holder base, including fixing the locking plate at brush holder base front end, install the fitting pin at brush holder axle front end and install the epaxial locking spring of brush holder, be equipped with the fitting pin through-hole on the locking plate, brush holder axle compression locking spring can make the fitting pin pass the fitting pin through-hole, and after removing the external force, the restoring force of locking spring is with cone angle plug and brush holder base locking and output horizontal direction's fitting force F Lock with a locking mechanism This part is of conventional construction and this embodiment will not be described in detail, due to the horizontal locking force F Lock with a locking mechanism So that a force F is generated between the first arc-shaped surface and the second arc-shaped surface Do not like Force F generated between the first arc-shaped surface and the second arc-shaped surface Do not like Can be decomposed into horizontal force F Water (I) And a vertical force F Vertical shaft Vertical force F Vertical shaft Can compress tightly the cone angle plug in the plug holding tank in vertical direction, and the bottom surface of cone angle plug and the tank bottom surface of plug holding tank are in the state of compressing tightly all the time, and then reduced the auxiliary fixtures between cone angle plug and the brush holder base, the security of brush holder work has been improved, cone angle plug and brush holder base mechanical cooperation are stable, it is more steady to make the brush holder move on the unit, and simultaneously, adopt the arcwall face to be the contact surface, area of contact has been increased, and then conductive contact area has been increased, contact resistance between cone angle plug and the brush holder base has been reduced, thereby thermal production has been reduced, the stability of brush holder work has further been improved.
Further, the bottom surface 22 of cone angle plug be equipped with the first contact surface 23 of the tank bottom surface 12 contact of plug holding tank, first contact surface 23 is electrically conductive, because in this application, the both sides face of cone angle plug and the both sides inslot face of plug holding tank are the arcwall face, and the cone angle plug is under the effect of arcwall face, the bottom surface 22 of cone angle plug and the tank bottom surface 12 of plug holding tank are in the state that compresses tightly all the time, consequently, this application carries out the finish machining to the bottom surface 22 of cone angle plug and the tank bottom surface 12 of plug holding tank and makes it can reach electrically conductive requirement, and then realize that the cone angle plug inserts back in the plug holding tank, the bottom surface of cone angle plug and the tank bottom surface contact part of plug holding tank are electrically conductive face, the electrically conductive area between cone angle plug and the brush holder base has further been increased promptly, resistance between the two has been reduced, and then reduced the heat that produces between the two, further improved electric conductive property and life between the two.
Further, the bottom surface 22 processing of cone angle plug has first recess 24, first recess 24 makes the bottom surface of cone angle plug form two first contact surfaces that are not continuous, in this embodiment, first recess 24 is the groove structure of processing along horizontal taper direction in the middle of the cone angle plug bottom surface, owing to processing has first recess, the bottom surface that can be appropriate reduction cone angle plug and the tank bottom surface contact part of plug holding tank, and then can reduce the roughness requirement to the bottom surface of whole cone angle plug and the tank bottom surface of plug holding tank, the processing degree of difficulty and processing cost have been reduced, simultaneously, first recess makes the brush hold and produces the heat dissipation channel between base and the cone angle plug, be convenient for dispel the heat, the performance of it has been improved.
Further, the circular arc center Q of the circular arc line 21 is located on the central line of the bottom surface 22 of the cone angle plug, the structure can enable the area of the circular arc surface and the acting force generated between the two circular arc surfaces to reach a better state, namely, the acting force between the first circular arc surface and the second circular arc surface cannot cause the difficulty in splicing due to being too large, and meanwhile, the acting force between the first circular arc surface and the second circular arc surface cannot cause the problem of infirm splicing due to being too small, so that better connection performance and conductivity can be obtained between the cone angle plug and the brush holder base.
Further, a brush box mounting projection 25 is provided on the top surface 26 of the taper angle plug, and the horizontal projection area of the brush box mounting projection 25 is smaller than the area of the top surface 26 of the taper angle plug. Namely, after the brush box is arranged on the cone angle plug, a certain gap is formed between the brush box and the brush holder base, so that the heat transferred to the cone angle plug and the brush holder base by the carbon brush can be reduced, meanwhile, the gap between the brush box and the brush holder base is beneficial to heat dissipation, and the service life and the performance of the brush holder are further improved.
Further, the insertion ends of the brush box mounting projections 25 are provided at both edges thereof with cut corners 28, which can reduce interference of movement when a taper angle plug is inserted into the plug-receiving groove.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a circular arc type locking brush holder, includes brush holder base, cone angle plug and brush box, the brush box sets up on the cone angle plug, be equipped with the plug holding tank on the brush holder base, the cone angle plug can insert in the plug holding tank, its characterized in that: the two side surfaces of the cone angle plug are first arc-shaped surfaces, the first arc-shaped surfaces and an arc line formed by the intersection line of the vertical section parallel to the end surface of the cone angle plug, and the arc center of the arc line is positioned on the plane where the bottom surface of the cone angle plug is positioned or positioned on the lower side of the plane where the bottom surface of the cone angle plug is positioned;
the inner wall surfaces of the two sides of the plug accommodating groove are second arc-shaped surfaces matched with the first arc-shaped surfaces.
2. The circular arc type locking brush holder according to claim 1, wherein: the bottom surface of the taper angle plug is provided with a first contact surface which is in contact with the bottom surface of the plug accommodating groove, and the first contact surface is a conductive surface.
3. The circular arc type locking brush holder according to claim 1 or 2, characterized in that: the bottom surface of the taper angle plug is provided with a first groove in a machining mode.
4. The circular arc type locking brush holder according to claim 3, wherein: the arc center of the arc line is positioned on the central line of the bottom surface of the cone angle plug.
5. The circular arc type locking brush holder according to claim 4, wherein: the top surface of the cone angle plug is provided with a brush box mounting protrusion, and the horizontal projection area of the brush box mounting protrusion is smaller than the area of the top surface of the cone angle plug.
6. The circular arc type locking brush holder according to claim 5, wherein: and the two edges of the inserting end of the brush box mounting protrusion are provided with cut angles.
CN202223397521.4U 2022-12-16 2022-12-16 Arc-shaped locking brush holder Active CN218828335U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223397521.4U CN218828335U (en) 2022-12-16 2022-12-16 Arc-shaped locking brush holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223397521.4U CN218828335U (en) 2022-12-16 2022-12-16 Arc-shaped locking brush holder

Publications (1)

Publication Number Publication Date
CN218828335U true CN218828335U (en) 2023-04-07

Family

ID=87045501

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223397521.4U Active CN218828335U (en) 2022-12-16 2022-12-16 Arc-shaped locking brush holder

Country Status (1)

Country Link
CN (1) CN218828335U (en)

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