CN112953090B - Carbon brush protective shell of alternating current speed regulation synchronous motor - Google Patents
Carbon brush protective shell of alternating current speed regulation synchronous motor Download PDFInfo
- Publication number
- CN112953090B CN112953090B CN202110160752.4A CN202110160752A CN112953090B CN 112953090 B CN112953090 B CN 112953090B CN 202110160752 A CN202110160752 A CN 202110160752A CN 112953090 B CN112953090 B CN 112953090B
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- CN
- China
- Prior art keywords
- protective shell
- carbon brush
- lock
- access door
- door
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/141—Means for supporting or protecting brushes or brush holders for cooperation with slip-rings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
- E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
- E06B7/30—Peep-holes; Devices for speaking through; Doors having windows
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a carbon brush protective shell of an alternating current speed regulation synchronous motor, which belongs to the technical field of motors and aims to find and eliminate carbon brush faults in time and ensure the normal operation of the alternating current speed regulation synchronous motor. According to the invention, the access door is arranged on the carbon brush protective shell, so that the abrasion condition of the carbon brush can be observed at any time through the access door, the seriously abraded carbon brush can be found in time and replaced, the accident potential is eliminated, the rotor slip ring is prevented from being damaged due to the failure of the carbon brush, and the safety of the rotor slip ring and the whole motor is effectively protected.
Description
Technical Field
The invention relates to a carbon brush protective shell of an alternating current speed regulation synchronous motor, which can help maintenance personnel to find and eliminate carbon brush faults in time and belongs to the technical field of motors.
Background
The AC speed-regulating synchronous motor has wide application, the exciting current of the motor rotor is introduced by carbon brushes, the carbon brushes are pressed in the carbon brush grooves at the tail part of the rotor through springs, and the number of the carbon brushes is determined according to the power of the motor. The carbon brush belongs to a consumable part, the elastic force of the spring pressing the carbon brush is gradually reduced along with the continuous abrasion of the carbon brush, and the carbon brush needs to be replaced when the abrasion loss of the carbon brush exceeds one third. However, since the arched protective shell is arranged outside the carbon brush, the metal cover plate fixed by the screws is arranged at the access hole, and the carbon brush is in a sealed state, the abrasion condition of the carbon brush is inconvenient to observe, so that the carbon brush cannot be found in time after being seriously abraded, the carbon brush fault can cause serious damage to a rotor slip ring, and the whole motor cannot be used continuously in case of serious damage, so that the problem that how to find and remove the carbon brush fault in time is the subject of related technical personnel is solved.
Disclosure of Invention
The invention aims to provide a carbon brush protective shell of an alternating current speed regulation synchronous motor, which aims to overcome the defects of the prior art, discover and eliminate carbon brush faults in time and ensure the normal operation of the alternating current speed regulation synchronous motor.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an AC speed governing synchronous machine's carbon brush protecting sheathing, includes arched protecting sheathing body and access door in the constitution, be equipped with the access hole on the protecting sheathing body, the access door shutoff is on the access hole of protecting sheathing body, and a door limit and the protecting sheathing body of access door rotate to be connected, and another door limit of access door passes through the lock and is connected with the protecting sheathing body.
The carbon brush protective shell of the alternating current speed regulation synchronous motor is characterized in that a transparent window is arranged on the access door.
Above-mentioned AC speed governing synchronous machine's carbon brush protecting sheathing, the transparent window includes the glass buckle of glass board and mouth style of calligraphy, and access hole department on the protecting sheathing body is equipped with the buckle frame, the inboard of buckle frame is equipped with glass board embedding frame, the glass board is arranged in the glass board embedding frame, the embedding of glass buckle is fixed in the buckle frame, all is equipped with the sealing strip between glass board and glass buckle and glass board embedding frame.
According to the carbon brush protective shell of the alternating current speed regulation synchronous motor, the sealing rubber strip is arranged at the contact position of the access door and the protective shell body.
Above-mentioned carbon brush protective housing of AC speed governing synchronous machine, the lock includes lock body, spring bolt, tower type spring, hasp, connecting block and operating handle, lock body and hasp are fixed respectively on access door and protective housing body, spring bolt and tower type spring all are located the spout in the lock body, and the head end of spring bolt is relative with the lockhole on the hasp, and the one end of tower type spring is fixed on the lock body, and the other end pushes up the tail end at the spring bolt, the connecting block is arranged in the window on the lock body lateral wall, and the one end and the operating handle of connecting block are connected, and the other end is connected with the spring bolt.
Above-mentioned alternating current speed governing synchronous machine's carbon brush protecting sheathing, the lock sets up two, the access door passes through the hinge and rotates with the protecting sheathing body to be connected, the hinge is installed respectively on a pair of parallel edge of access door with two locks.
The transparent window is provided with a dust and mist removing device.
Above-mentioned alternating current speed governing synchronous machine's carbon brush protective housing, dust removal defogging device includes support body and fan, the inboard at the access door is installed to the support body, the fan is installed on the support body, and the air outlet and the transparent window of fan are relative.
Above-mentioned alternating current speed governing synchronous machine's carbon brush protecting sheathing, dust removal defogging device still includes the heater, the heater is installed in the inlet scoop department of fan.
The carbon brush protective shell of the alternating current speed regulation synchronous motor further comprises a carbon brush illuminating lamp, and the carbon brush illuminating lamp is fixed on a frame body of the dust and mist removal device through a lamp holder.
According to the invention, the access door is arranged on the carbon brush protective shell, so that the abrasion condition of the carbon brush can be observed at any time through the access door, the seriously abraded carbon brush can be found in time and replaced, the accident potential is eliminated, the rotor slip ring is prevented from being damaged due to the failure of the carbon brush, and the safety of the rotor slip ring and the whole motor is effectively protected.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of the present invention, in which fig. 1 (a) is a state where an access door is closed, and fig. 1 (b) is a state where the access door is opened (a partially enlarged view);
FIG. 2 is a schematic view of the overall structure of the access door;
FIG. 3 is an exploded schematic view of an access door;
FIG. 4 is an exploded view of the door lock;
FIG. 5 is an exploded view of the dedusting and defogging device;
fig. 6 is a schematic structural diagram of the control box.
The reference numbers in the figures are: 1. the novel multifunctional door comprises an access door, 1-1 parts of a buckle plate frame, 1-2 parts of a buckle plate fixing screw hole, 1-3 parts of a glass plate embedded frame, 1-4 parts of a lead hole, 1-5 parts of a sealing rubber strip, 2 parts of a glass buckle plate, 2-1 parts of a buckle plate fixing through hole, 2-2 parts of a disassembling and assembling handle, 2-3 parts of a buckle plate fixing screw, 3 parts of a glass plate, 3-1 parts of a sealing strip, 4 parts of a lock body, 4-1 parts of a lock body, a lock mounting hole, 4-2 parts of a lock, a window, 4-3 parts of a lock tongue, 4-4 parts of a tower spring, 4-5 parts of an operating handle, 4-6 parts of a connecting block, 4-7 parts of a lock catch, 4-8 parts of a lock catch mounting hole, 5 parts of a hinge, 6 parts of a frame body, 6-1 parts of a door, a heater, 7 parts of a fan, 7-1 parts of a line distribution pipe, 8 parts of a bus pipe, a base, 10 parts of a lamp holder, 10-1 parts of a door, 11 parts of a carbon brush, 11 parts of a control box, 11-1 parts of a conversion switch, 11-2 parts of a power socket, a power plug, 12 parts of a protection plug, a shell, 12 parts of a lighting lamp shell, and an edge.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 6, the present invention mainly includes: the lock comprises an access door 1, a buckle frame 1-1, a glass plate embedding frame 1-3, a sealing rubber strip 1-5, a glass buckle plate 2, a disassembly and assembly handle 2-2, buckle plate fixing screws 2-3, a glass plate 3, a sealing strip 3-1, a lock body 4, a lock mounting hole 4-1, a lock tongue 4-3, a tower-shaped spring 4-4, an operating handle 4-5, a connecting block 4-6, a buckle 4-7, a hinge 5, a frame body 6, a heater 6-1, a fan 7, a branching pipe 7-1, a bus pipe 8, a base 9, a lamp holder 10, a carbon brush illuminating lamp 10-1, a control box 11, a change-over switch 11-1, a power socket 11-2, a power plug 11-3 and a protective shell body 12.
Referring to fig. 1 to 3, the access door 1 is rectangular, the middle part of the access door is provided with a buckle plate frame 1-1, the height of the upper surface of the buckle plate frame 1-1 is lower than that of the upper surface of the access door 1, the height of the lower surface of the buckle plate frame 1-1 is consistent with that of the lower surface of the access door 1, and 4 buckle plate fixing screw holes 1-2 are arranged and distributed at four corners of the buckle plate frame 1-1.
The middle part of the buckle plate frame 1-1 is provided with a glass plate embedding frame 1-3, the height of the upper surface of the glass plate embedding frame 1-3 is lower than that of the buckle plate frame 1-1, and the height of the lower surface of the glass plate embedding frame 1-3 is consistent with that of the lower surface of the buckle plate frame 1-1.
The lower right corner of the access door 1 is provided with a lead hole 1-4, one surface of a sealing rubber strip 1-5 is attached to the edge of the inner surface of the access door frame 1, and the other surface of the sealing rubber strip is attached to the edge 12-1 of the door opening of the protective shell body 12 when the access door is locked, so that the sealing effect is achieved.
Referring to fig. 1 to 3, a glass buckle plate 2 is rectangular hollow (i.e. square), with buckle plate fixing through holes 2-1 at four corners and detachable handles 2-2 at the top and bottom.
The glass plate 3 is made of organic glass, and is embedded into the glass plate embedding frame 1-3 on the access door 1 after the inner surface edge and the outer surface edge are attached with the sealing strip 3-1.
The glass pinch plate 2 is embedded into the pinch plate frame 1-1 and is fixed through pinch plate fixing screws 2-3 to compress the glass plate 3.
Referring to fig. 1 to 4, a lock body 4, a lock mounting hole 4-1, a window 4-2, a bolt 4-3, a tower spring 4-4, an operating handle 4-5, a connecting block 4-6, a lock catch 4-7 and a lock catch mounting hole 4-8 form a door lock of an access door.
The lock body 4 is in a shape of a Chinese character 'ji', a sliding groove for accommodating the bolt 4-3 and the tower spring 4-4 is formed inside the lock body, a window 4-2 is arranged in the middle of the lock body, and the lock body is installed on the side of the access door 1 through lock installation holes 4-1 on two sides.
The bolt 4-3 is arranged in a sliding groove in the lock body 4, the tail end of the bolt 4-3 is provided with two tower-shaped springs 4-4, and the other ends of the tower-shaped springs 4-4 are connected with the lock body 4.
The operating handle 4-5 is arc-shaped, the bottom of the operating handle is provided with a connecting block 4-6, and the connecting block 4-6 penetrates through the window 4-2 and then is fixed to the back of the bolt 4-3.
The lock catches 4-7 are in a shape like a Chinese character 'ji', and are arranged on the protective shell body 12 corresponding to the lock body 4 through the lock catch mounting holes 4-8 at the two sides.
The door lock is provided with 2 sets of door locks for locking the access door, when the access door is used, the operating handle 4-5 is pulled towards the rear of the lock body 4 to pull the bolt 4-3 to leave the lock catch 4-7, the access door is opened by utilizing the arc shape of the operating handle 4-5, and the double door locks prevent a person from being opened by mistake.
Referring to fig. 1 to 3, the hinge 5 is located on the outer surface of the lock body 1, and is used for connecting the access door 1 and the protective shell body 12.
Referring to fig. 1, 3 and 5, a heater 6-1 is fixed inside the frame body 6, and a terminal of the heater 6-1 is led out from a side edge of the frame body 6.
Three fans 7 are arranged above the frame body 6, and a branch pipe 7-1 is arranged above the fans 7 and used for containing circuits of the fans 7.
A lamp holder 10 is arranged on one side of the frame body 6, the carbon brush illuminating lamp 10-1 is installed in a hole in the lamp holder 10, the lamp holder 10 has a certain angle, light can conveniently cover the whole carbon brush, a circuit of the carbon brush illuminating lamp 10-1 is also contained in the branch pipe 7-1, and wiring terminals of the branch pipe 7-1 and the heater 6-1 are gathered to the bus pipe 8 and then led out from a lead hole 1-4 of the access door 1.
6 opposite sides of support body are equipped with base 9 for weld the inboard below of access door 1 with dust removal defogging device, base 9 has certain angle, and the heating of being convenient for is blown and is covered 3 internal surfaces of glass board, reaches and eliminates fog and carbon dust, prevents the obstructed purpose of sight.
Referring to fig. 2, 3 and 6, a control box 11 is installed above the lead holes 1-4 at the bottom of the access door 1 for receiving the cables led out from the bus tube 8, and a change-over switch 11-1 is installed above the control box 11 for controlling the heater 6-1, the fan 7 and the carbon brush lighting lamp 10-1 respectively.
A power socket 11-2 is arranged on the side of the control box 11, and an external power supply can be led into the control box 11 through a matched power plug 11-3.
The access door with the transparent window and the illuminating lamp is arranged on the carbon brush protective shell, the state of the carbon brush can be observed at any time when the illuminating lamp is turned on, the access door is provided with the dust removal and defogging device, carbon powder (carbon powder generated when the carbon brush is worn) covering the inner surface of the glass plate can be swept, fog generated due to seasonal reasons is eliminated, the visual line is prevented from being blocked, and the access door is provided with the double door locks, so that the false opening can be effectively prevented.
Claims (6)
1. A carbon brush protective shell of an alternating current speed regulation synchronous motor is characterized by comprising an arched protective shell body (12) and an access door (1), wherein the protective shell body (12) is provided with an access hole, the access door (1) is plugged on the access hole of the protective shell body (12), one door edge of the access door (1) is rotatably connected with the protective shell body (12), and the other door edge of the access door (1) is connected with the protective shell body (12) through a door lock;
a transparent window is arranged on the access door (1);
the transparent window is provided with a dust and mist removing device, the dust and mist removing device comprises a frame body (6) and a fan (7), the frame body (6) is installed on the inner side of the access door (1), the fan (7) is installed on the frame body (6), and an air outlet of the fan (7) is opposite to the transparent window;
the dust and mist removing device further comprises a carbon brush illuminating lamp (10-1), wherein the carbon brush illuminating lamp (10-1) is fixed on a frame body (6) of the dust and mist removing device through a lamp holder (10).
2. The carbon brush protective shell of the alternating current speed regulation synchronous motor is characterized in that the transparent window comprises a glass plate (3) and a square glass buckle plate (2), the buckle plate frame (1-1) is arranged at the maintenance opening on the protective shell body (12), a glass plate embedding frame (1-3) is arranged on the inner side of the buckle plate frame (1-1), the glass plate (3) is arranged in the glass plate embedding frame (1-3), the glass buckle plate (2) is embedded and fixed in the buckle plate frame (1-1), and sealing strips (3-1) are arranged among the glass plate (3), the glass buckle plate (2) and the glass plate embedding frame (1-3).
3. The carbon brush protective shell of the alternating current speed regulating synchronous motor as claimed in claim 2, wherein sealing rubber strips (1-5) are arranged at the contact part of the access door (1) and the protective shell body (12).
4. The carbon brush protective shell of the alternating current speed regulation synchronous motor is characterized in that the door lock comprises a lock body (4), a lock tongue (4-3), a tower-shaped spring (4-4), a lock catch (4-7), a connecting block (4-6) and an operating handle (4-5), the lock body (4) and the lock catch (4-7) are respectively fixed on the access door (1) and the protective shell body (12), the lock tongue (4-3) and the tower-shaped spring (4-4) are located in a sliding groove in the lock body (4), the head end of the lock tongue (4-3) is opposite to a lock hole in the lock catch (4-7), one end of the tower-shaped spring (4-4) is fixed on the lock body (4), the other end of the tower-shaped spring abuts against the tail end of the lock tongue (4-3), the connecting block (4-6) is located in a window (4-2) in the side wall of the lock body (4), one end of the connecting block (4-6) is connected with the operating handle (4-5), and the other end of the connecting block is connected with the lock tongue (4-3).
5. The carbon brush protective shell of the alternating-current speed regulation synchronous motor is characterized in that two door locks are arranged, the access door (1) is rotatably connected with the protective shell body (12) through a hinge (5), and the hinge (5) and the two door locks are respectively arranged on a pair of parallel edges of the access door (1).
6. The carbon brush protective shell of the AC speed-regulating synchronous motor as recited in claim 5, wherein said dust-removing and mist-removing device further comprises a heater (6-1), and said heater (6-1) is installed at the air suction port of the fan (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160752.4A CN112953090B (en) | 2021-02-05 | 2021-02-05 | Carbon brush protective shell of alternating current speed regulation synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160752.4A CN112953090B (en) | 2021-02-05 | 2021-02-05 | Carbon brush protective shell of alternating current speed regulation synchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112953090A CN112953090A (en) | 2021-06-11 |
| CN112953090B true CN112953090B (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110160752.4A Active CN112953090B (en) | 2021-02-05 | 2021-02-05 | Carbon brush protective shell of alternating current speed regulation synchronous motor |
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| CN (1) | CN112953090B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114458955A (en) * | 2021-12-24 | 2022-05-10 | 杰斯瑞特安全科技（无锡）有限公司 | Fireproof and explosion-proof compressed gas cylinder cabinet |
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| US3899043A (en) * | 1974-07-29 | 1975-08-12 | Steadley Co | Machine cover |
| JP3305881B2 (en) * | 1994-06-30 | 2002-07-24 | 株式会社東芝 | Shaft grounding device |
| JPH11116167A (en) * | 1997-10-17 | 1999-04-27 | Hitachi Building Systems Co Ltd | Provisional enclosure for prevention of dust dispersion |
| CN2597630Y (en) * | 2002-07-28 | 2004-01-07 | 管中立 | Double-bolt anti-inserting anti-picking lock |
| JP4890879B2 (en) * | 2006-02-16 | 2012-03-07 | 株式会社マキタ | Dust-proof structure of power tools |
| JP4901318B2 (en) * | 2006-06-09 | 2012-03-21 | 三菱電機株式会社 | Electric blower dustproof device |
| CN201150018Y (en) * | 2008-01-11 | 2008-11-12 | 徐广� | Carbon brush closed automobile generator |
| CN103560607A (en) * | 2013-11-19 | 2014-02-05 | 中电电机股份有限公司 | Sliding ring structure in winding motor with tubes arranged on periphery |
| CN204217036U (en) * | 2014-11-14 | 2015-03-18 | 天津市嘉杰电子有限公司 | A kind of demister for camera |
| CN107340826A (en) * | 2017-08-22 | 2017-11-10 | 苏州佳风网络科技有限公司 | A kind of dust-protection type computer cabinet |
| CN207039396U (en) * | 2017-08-22 | 2018-02-23 | 临沂江鑫钢铁有限公司 | A kind of sintering machine main takes out carbon brush for electric machine slip ring protector |
| CN208353165U (en) * | 2018-07-26 | 2019-01-08 | 张宏伟 | Generator brush holder dust gathering arrester sliding window structure |
| CN109507057B (en) * | 2018-11-13 | 2021-02-26 | 徐州恒巨机电科技有限公司 | Wear experiment device of carbon brush for subway |
| CN209730407U (en) * | 2019-06-03 | 2019-12-03 | 苏州市宇轩弹簧有限公司 | A kind of carbon brush and carbon brush cartridge |
| CN210608752U (en) * | 2019-10-30 | 2020-05-22 | 杭州恒业电机制造有限公司 | Brush DC motor end cover |
| CN211660022U (en) * | 2019-12-31 | 2020-10-13 | 上海喆图科学仪器有限公司 | High-low temperature test box |
| CN211982385U (en) * | 2020-05-08 | 2020-11-20 | 郑州工业应用技术学院 | Electromechanical temperature controller maintains device |
| CN212454701U (en) * | 2020-06-04 | 2021-02-02 | 江苏海锋能源科技有限公司 | Wind power generator cabin cover convenient to overhaul and maintain |
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