CN213905793U

CN213905793U - Brush holder assembly

Info

Publication number: CN213905793U
Application number: CN202022355030.8U
Authority: CN
Inventors: 徐磊; 周春兰; 杜鹏; 宋宇; 陈增芬
Original assignee: Dongfang Electric Machinery Co Ltd DEC
Current assignee: Dongfang Electric Machinery Co Ltd DEC
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-08-06
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a brush holder subassembly belongs to generator technical field, including handle, wedge connecting plate, brush and brush box, its characterized in that: still include insulating sleeve, transition joint and connecting piece, in the one end embedding insulating sleeve of handle, be provided with insulating baffle between insulating sleeve and the wedge connecting plate, the transition joint runs through insulating baffle, in the one end embedding insulating sleeve of transition joint, in the other end embedding wedge connecting plate, installs the axle on the handle, epaxial belleville spring of installing, belleville spring's one end is located insulating sleeve, and the other end is located transition joint, and the one end and the detachable connection of wedge connecting plate of connecting piece, the other end are connected with the fixed plate, and the brush box is connected on the fixed plate, fixedly connected with limiting plate on the electric brush. The utility model discloses the motion of the locking brush that can be reliable improves the spacing reliability of brush, eliminates the potential safety hazard of brush holder operation in-process, and the suitability is strong.

Description

Brush holder assembly

Technical Field

The utility model relates to generator technical field especially relates to a subassembly is held to brush.

Background

The brush holder comprises wedge-shaped connecting plate, brush box, handle, axle, constant force spring and brush holding mechanism, and wherein, the wedge-shaped connecting plate passes through the screw and is connected with the brush box or wedge-shaped connecting plate and brush box structure as an organic whole, and the constant force spring is installed in the brush box. When the brush box works, the electric brush moves in the brush box under the action of the constant force spring and keeps contact with the collecting ring.

The brush box and the wedge-shaped connecting plate of the multi-connected brush box are assembled after being manufactured by adopting a casting process respectively, and the brush box is complex in structure, large in wall thickness change and complex in mold structure and long in processing period. The wedge-shaped connecting plate and the brush box of the single-hole brush holder are of an integral casting structure, the mold structure is complex, and the application range is small. According to different working conditions, the cross section size of the electric brush is changed, and the number of the electric brushes arranged on each brush holder is also changed. Once the section size of the electric brush changes, or the number of the electric brushes arranged on each brush holder changes, a new die needs to be processed, the die cost is high, the processing period is long, and the application range of the die is limited.

Chinese patent publication No. CN 204118924U, published 2015, 01-21, discloses an excitation combined brush holder for a generator or a motor, which comprises a carbon brush fixing device, a conductive plate, a brush holder fixing rod, a pre-tightening spring, a carbon brush box and a voltage-sharing spring, wherein the conductive plate is provided with a guide sleeve, and the brush holder fixing rod is installed in the guide sleeve, and is characterized in that: the carbon brush fixing device comprises a supporting plate, elastic clamping teeth and a shifting lever, wherein the supporting plate is a flat plate, the elastic clamping teeth are installed on the supporting plate, the carbon brush box is provided with an opening at a position corresponding to the elastic clamping teeth, the shifting lever is installed on a brush holder fixing rod and used for shifting the supporting plate to enable the elastic clamping teeth to extend into a carbon brush in the carbon brush box when maintenance is conducted, and the carbon brush is supported from the side face.

Although the excitation combined brush holder for the generator or the motor disclosed in the patent document can solve the problem that the carbon brush fixing device cannot fix the carbon brush well, the slip ring is easily damaged or the carbon brush is stuck in an operating state. However, the combination of different numbers of brush boxes cannot be realized, and the movement of the brush cannot be reliably locked, so that potential safety hazards exist in the process of inserting and pulling the brush holder.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art's defect, provide a brush holder subassembly, the utility model discloses the motion of the locking brush that can be reliable improves the spacing reliability of brush, eliminates the potential safety hazard of brush holder operation in-process, and the suitability is strong.

The utility model discloses a following technical scheme realizes:

the utility model provides a brush holder assembly, includes handle, wedge-shaped connecting plate, brush and brush box, brush sliding connection in the brush box, its characterized in that: still include insulating sleeve, transition joint and connecting piece, in the one end embedding insulating sleeve of handle, be provided with insulating baffle between insulating sleeve and the wedge connecting plate, insulating baffle fixes on insulating sleeve, transition joint runs through insulating baffle, and in transition joint's one end embedding insulating sleeve, in transition joint's the other end embedding wedge connecting plate, install the axle on the handle, the axle runs through insulating sleeve, transition joint and wedge connecting plate, epaxial belleville spring of installing, belleville spring's one end is located insulating sleeve, and belleville spring's the other end is located transition joint, the one end and the detachable connection of wedge connecting plate of connecting piece, the other end of connecting piece are connected with the fixed plate, the brush box is connected on the fixed plate, fixedly connected with limiting plate on the electric brush.

The connecting piece includes mounting panel and fixing base, and mounting panel and fixing base form for integrated into one piece, and it has the mounting groove to open on the mounting panel, and the fixed plate is fixed on the mounting groove, and the fixing base is connected with the wedge connecting plate is detachable.

Mounting groove, fixed plate and brush box are three, and three fixed plate arranges side by side, and the brush box passes through the fixed plate to be installed on the mounting groove.

The cross section of the limiting plate is L-shaped, the limiting plate comprises a connecting part and a limiting part, the connecting part and the limiting part are integrally formed, and the connecting part is fixed on the electric brush.

The cross section of the handle is T-shaped, the handle comprises a holding part and an embedding part, the holding part and the embedding part are formed by integral molding, a cavity is formed in the holding part, and an end cover is embedded in the holding part.

The one end of axle is provided with the nut, and the nut is located the cavity, and the other end of axle is provided with the anticreep piece, and the one end of axle runs through the embedding portion and fixes on the embedding portion through the nut.

And a cushion block is fixed in the insulating sleeve, one end of the disk spring is in contact with the cushion block, and the other end of the disk spring is in contact with the transition joint.

The working principle of the utility model is as follows:

the during operation, the brush reciprocates in the brush box, when needs brush holder is dismantled at the working process live-line, all need set up one in brush box bottom among the prior art through lever principle and spring mating action realization brush locking part, prevents that the brush from deviating from the brush holder when dismantling the brush holder, avoids colliding with sliding ring rotating part and causes brush or sliding ring surface damage, influences the brush holder normal function and realizes. However, due to the factors of unreasonable size design, installation size deviation and spring force deviation, reliable locking of the movement of the brush is difficult, and therefore potential safety hazards exist in the process of inserting and pulling the brush holder.

The utility model discloses cancel and set up the brush locking part that relies on elastic element to realize bottom the brush box among the prior art, and set up the limiting plate that possesses brush position indication and brush position locking simultaneously on the brush, during the plug brush holder, when the brush removed the extreme position of allowwing in the brush box, the limiting plate that sets up on the brush was blocked by the edge of brush box to the removal of restriction brush. Because the electric brush locking component realized by relying on the elastic element is cancelled, the limitation of the position of the electric brush is realized by relying on the static component, the reliability of the electric brush limitation is greatly improved, and the potential safety hazard in the operation process of the brush holder is eliminated.

The beneficial effects of the utility model are mainly expressed in the following aspect:

first, the utility model discloses, one end of handle imbeds in the insulating sleeve, be provided with insulating baffle between insulating sleeve and the wedge connecting plate, insulating baffle is fixed on insulating sleeve, the crossover sub runs through insulating baffle, one end of crossover sub imbeds in the insulating sleeve, the other end of crossover sub imbeds in the wedge connecting plate, install the axle on the handle, the axle runs through insulating sleeve, crossover sub and wedge connecting plate, epaxial belleville spring of installing, one end of belleville spring is located insulating sleeve, the other end of belleville spring is located the crossover sub, one end of connecting piece and wedge connecting plate detachable connection, the other end of connecting piece is connected with the fixed plate, the brush box is connected on the fixed plate, fixedly connected with the limiting plate on the brush, when the plug brush holds, when the brush moves to the allowed extreme position in the brush box, the limiting plate that sets up on the brush is blocked by the edge of brush box, the motion of locking brush that can be reliable improves the spacing reliability of brush, eliminates the potential safety hazard of brush holder operation in-process, and the suitability is strong.

Two, the utility model discloses, the connecting piece includes mounting panel and fixing base, and mounting panel and fixing base form for integrated into one piece, and it has the mounting groove to open on the mounting panel, and the fixed plate is fixed on the mounting groove, and the fixing base is connected with the wedge-shaped connecting plate is detachable, the fixed brush box that is convenient for stabilize, guarantee operational reliability.

Thirdly, the utility model discloses, mounting groove, fixed plate and brush box are three, and three fixed plate arranges side by side, and the brush box passes through the fixed plate to be installed on the mounting groove, and brush box quantity sets up more in a flexible way, need not to process new mould, has reduced mould quantity, has reduced the mould cost.

Four, the utility model discloses, the transversal "L" type of personally submitting of limiting plate, limiting plate include connecting portion and spacing portion, and connecting portion and spacing portion form for integrated into one piece, and connecting portion are fixed on the brush, simple structure, and can play good limiting displacement.

Fifthly, the utility model discloses, the transversal "T" type of personally submitting of handle, handle are including the portion of gripping and embedding portion, and the portion of gripping and embedding portion form for integrated into one piece, and it has the cavity to open in the portion of gripping, has inlayed the end cover in the portion of gripping, and the change axle of being convenient for is dismantled the installation and is more convenient.

Sixth, the utility model discloses, the one end of axle is provided with the nut, and the nut is located the cavity, and the other end of axle is provided with the anticreep piece, and the one end of axle runs through embedding portion and fixes in embedding portion through the nut, can prevent the axle slippage, further ensures operational reliability.

Seventhly, the utility model discloses, insulating sleeve internal fixation has the cushion, and belleville spring's one end and cushion contact, belleville spring's the other end and transition joint contact can make whole brush holder realize good locking effect, do benefit to and improve job stabilization nature.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments, wherein:

fig. 1 is a schematic structural view of the present invention;

the labels in the figure are: 1. the handle, 2, wedge-shaped connecting plate, 3, brush, 4, brush box, 5, insulating sleeve, 6, transition joint, 7, connecting piece, 8, insulating baffle, 9, axle, 10, belleville spring, 11, fixed plate, 12, limiting plate, 13, mounting panel, 14, fixing base, 15, mounting groove, 16, connecting portion, 17, spacing portion, 18, the portion of gripping, 19, embedding portion, 20, cavity, 21, end cover, 22, nut, 23, anticreep piece, 24, cushion.

Detailed Description

Example 1

Referring to fig. 1, a brush holder assembly comprises a handle 1, a wedge-shaped connecting plate 2, an electric brush 3 and a brush box 4, wherein the electric brush 3 is slidably connected in the brush box 4, the brush holder assembly further comprises an insulating sleeve 5, a transition joint 6 and a connecting piece 7, one end of the handle 1 is embedded in the insulating sleeve 5, an insulating baffle 8 is arranged between the insulating sleeve 5 and the wedge-shaped connecting plate 2, the insulating baffle 8 is fixed on the insulating sleeve 5, the transition joint 6 penetrates through the insulating baffle 8, one end of the transition joint 6 is embedded in the insulating sleeve 5, the other end of the transition joint 6 is embedded in the wedge-shaped connecting plate 2, a shaft 9 is mounted on the handle 1, the shaft 9 penetrates through the insulating sleeve 5, the transition joint 6 and the wedge-shaped connecting plate 2, a disc spring 10 is mounted on the shaft 9, one end of the disc spring 10 is located in the insulating sleeve 5, and the other end of the disc spring 10 is located in the transition joint 6, one end and the 2 detachable connections of wedge-shaped connecting plate of connecting piece 7, the other end of connecting piece 7 is connected with fixed plate 11, brush box 4 is connected on fixed plate 11, fixedly connected with limiting plate 12 on brush 3.

The embodiment is the most basic implementation manner, one end of a handle 1 is embedded in an insulating sleeve 5, an insulating baffle 8 is arranged between the insulating sleeve 5 and a wedge-shaped connecting plate 2, the insulating baffle 8 is fixed on the insulating sleeve 5, a transition joint 6 penetrates through the insulating baffle 8, one end of the transition joint 6 is embedded in the insulating sleeve 5, the other end of the transition joint 6 is embedded in the wedge-shaped connecting plate 2, a shaft 9 is mounted on the handle 1, the shaft 9 penetrates through the insulating sleeve 5, the transition joint 6 and the wedge-shaped connecting plate 2, a disc spring 10 is mounted on the shaft 9, one end of the disc spring 10 is located in the insulating sleeve 5, the other end of the disc spring 10 is located in the transition joint 6, one end of a connecting piece 7 is detachably connected with the wedge-shaped connecting plate 2, the other end of the connecting piece 7 is connected with a fixing plate 11, a brush box 4 is connected on the fixing plate 11, and a limiting plate 12 is fixedly connected on a brush 3, when the brush holder is plugged and pulled out, when the electric brush 3 moves to an allowed limit position in the brush box 4, the limiting plate 12 arranged on the electric brush 3 is blocked by the edge of the brush box 4, the movement of the electric brush 3 can be reliably locked, the limiting reliability of the electric brush 3 is improved, the potential safety hazard in the operation process of the brush holder is eliminated, and the applicability is strong.

Example 2

Connecting piece 7 includes mounting panel 13 and fixing base 14, and mounting panel 13 and fixing base 14 form for integrated into one piece, and it has mounting groove 15 to open on the mounting panel 13, and fixed plate 11 is fixed on mounting groove 15, and fixing base 14 is connected with wedge-shaped connecting plate 2 is detachable.

This embodiment is a preferred implementation, and connecting piece 7 includes mounting panel 13 and fixing base 14, and mounting panel 13 and fixing base 14 form for integrated into one piece, and it has mounting groove 15 to open on the mounting panel 13, and fixed plate 11 is fixed on mounting groove 15, and fixing base 14 is connected with wedge-shaped connecting plate 2 is detachable, the firm fixed brush box 4 of being convenient for, guarantee operational reliability.

Example 3

Referring to fig. 1, a brush holder assembly comprises a handle 1, a wedge-shaped connecting plate 2, an electric brush 3 and a brush box 4, wherein the electric brush 3 is slidably connected in the brush box 4, the brush holder assembly further comprises an insulating sleeve 5, a transition joint 6 and a connecting piece 7, one end of the handle 1 is embedded in the insulating sleeve 5, an insulating baffle 8 is arranged between the insulating sleeve 5 and the wedge-shaped connecting plate 2, the insulating baffle 8 is fixed on the insulating sleeve 5, the transition joint 6 penetrates through the insulating baffle 8, one end of the transition joint 6 is embedded in the insulating sleeve 5, the other end of the transition joint 6 is embedded in the wedge-shaped connecting plate 2, a shaft 9 is mounted on the handle 1, the shaft 9 penetrates through the insulating sleeve 5, the transition joint 6 and the wedge-shaped connecting plate 2, a disc spring 10 is mounted on the shaft 9, one end of the disc spring 10 is located in the insulating sleeve 5, and the, one end and the 2 detachable connections of wedge-shaped connecting plate of connecting piece 7, the other end of connecting piece 7 is connected with fixed plate 11, brush box 4 is connected on fixed plate 11, fixedly connected with limiting plate 12 on brush 3.

The mounting groove 15, the fixing plate 11 and the brush box 4 are three, the three fixing plates 11 are arranged side by side, and the brush box 4 is mounted on the mounting groove 15 through the fixing plates 11.

This embodiment is another preferred embodiment, and mounting groove 15, fixed plate 11 and brush box 4 are three, and three fixed plate 11 is arranged side by side, and brush box 4 passes through fixed plate 11 to be installed on mounting groove 15, and brush box 4 quantity sets up more in a flexible way, need not to process new mould, has reduced mould quantity, has reduced the mould cost.

Example 4

The cross section of the limiting plate 12 is L-shaped, the limiting plate 12 comprises a connecting portion 16 and a limiting portion 17, the connecting portion 16 and the limiting portion 17 are integrally formed, and the connecting portion 16 is fixed on the electric brush 3.

In this embodiment, the cross section of the limiting plate 12 is "L" shaped, the limiting plate 12 includes a connecting portion 16 and a limiting portion 17, the connecting portion 16 and the limiting portion 17 are integrally formed, and the connecting portion 16 is fixed on the brush 3, so that the structure is simple and the limiting function is good.

Example 5

The cross section of the handle 1 is T-shaped, the handle 1 comprises a holding part 18 and an embedded part 19, the holding part 18 and the embedded part 19 are formed by integral molding, a cavity 20 is formed in the holding part 18, and an end cover 21 is embedded on the holding part 18.

In another preferred embodiment, the cross section of the handle 1 is "T" shaped, the handle 1 includes a holding portion 18 and an embedded portion 19, the holding portion 18 and the embedded portion 19 are integrally formed, a cavity 20 is formed in the holding portion 18, and an end cap 21 is embedded on the holding portion 18, so that the shaft 9 can be replaced conveniently, and the detachment and installation are more convenient.

Example 6

One end of the shaft 9 is provided with a nut 22, the nut 22 is positioned in the cavity 20, the other end of the shaft 9 is provided with an anti-falling block 23, and one end of the shaft 9 penetrates through the embedded part 19 and is fixed on the embedded part 19 through the nut 22.

In this embodiment, a nut 22 is disposed at one end of the shaft 9, the nut 22 is located in the cavity 20, an anti-slip block 23 is disposed at the other end of the shaft 9, and one end of the shaft 9 penetrates through the embedded portion 19 and is fixed on the embedded portion 19 through the nut 22, so as to prevent the shaft 9 from slipping off, and further ensure the operational reliability.

Example 7

A cushion block 24 is fixed in the insulating sleeve 5, one end of the disc spring 10 is in contact with the cushion block 24, and the other end of the disc spring 10 is in contact with the transition joint 6.

The embodiment is the best mode, a cushion block 24 is fixed in the insulating sleeve 5, one end of the disc spring 10 is in contact with the cushion block 24, and the other end of the disc spring 10 is in contact with the transition joint 6, so that the whole brush holder can achieve a good locking effect, and the working stability is improved.

Claims

1. The utility model provides a subassembly is held to brush, includes handle (1), wedge connecting plate (2), brush (3) and brush box (4), brush (3) sliding connection in brush box (4), its characterized in that: the handle is characterized by further comprising an insulating sleeve (5), a transition joint (6) and a connecting piece (7), wherein one end of the handle (1) is embedded into the insulating sleeve (5), an insulating baffle (8) is arranged between the insulating sleeve (5) and the wedge-shaped connecting plate (2), the insulating baffle (8) is fixed on the insulating sleeve (5), the transition joint (6) penetrates through the insulating baffle (8), one end of the transition joint (6) is embedded into the insulating sleeve (5), the other end of the transition joint (6) is embedded into the wedge-shaped connecting plate (2), a shaft (9) is installed on the handle (1), the shaft (9) penetrates through the insulating sleeve (5), the transition joint (6) and the wedge-shaped connecting plate (2), a disc spring (10) is installed on the shaft (9), one end of the disc spring (10) is located in the insulating sleeve (5), and the other end of the disc spring (10) is located in the transition joint (6), the one end and the detachable connection of wedge connecting plate (2) of connecting piece (7), the other end of connecting piece (7) are connected with fixed plate (11), brush box (4) are connected on fixed plate (11), fixedly connected with limiting plate (12) on brush (3).

2. A brush holder assembly according to claim 1, wherein: connecting piece (7) include mounting panel (13) and fixing base (14), and mounting panel (13) and fixing base (14) form for integrated into one piece, and it has mounting groove (15) to open on mounting panel (13), and fixed plate (11) are fixed on mounting groove (15), and fixing base (14) are connected with wedge connecting plate (2) are detachable.

3. A brush holder assembly according to claim 2, wherein: mounting groove (15), fixed plate (11) and brush box (4) are three, and three fixed plate (11) arrange side by side, and brush box (4) are installed on mounting groove (15) through fixed plate (11).

4. A brush holder assembly according to claim 1, wherein: the cross section of the limiting plate (12) is L-shaped, the limiting plate (12) comprises a connecting portion (16) and a limiting portion (17), the connecting portion (16) and the limiting portion (17) are formed by integral forming, and the connecting portion (16) is fixed on the electric brush (3).