CN211018471U - Brush excitation generator carbon brush fixing device convenient to maintain - Google Patents
Brush excitation generator carbon brush fixing device convenient to maintain Download PDFInfo
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- CN211018471U CN211018471U CN201922130771.3U CN201922130771U CN211018471U CN 211018471 U CN211018471 U CN 211018471U CN 201922130771 U CN201922130771 U CN 201922130771U CN 211018471 U CN211018471 U CN 211018471U
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- pressure spring
- carbon brush
- spring frame
- fixing device
- brush
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Abstract
The utility model discloses a there is brush excitation generator carbon brush fixing device convenient to maintenance, it includes pedestal, pressure spring and V type pressure spring frame, be equipped with carbon brush room and pressure spring room in the pedestal, the carbon brush of generator passes the carbon brush room and is compressed tightly by the pressure spring, a straight arm of V type pressure spring frame lean on at the lateral part of carbon brush and with pressure spring fixed connection, the both sides of another straight arm be equipped with the indoor two opening that the pallet is corresponding of pressure spring, improve the back, respectively be equipped with a pressure spring frame spacing platform on two lateral walls of pressure spring room, two pressure spring frame spacing distance between the platform are less than the width of V type pressure spring frame and are greater than the distance between two openings. The utility model discloses replace original spacing crossbeam with two spacing platforms of pressure spring frame, not only can prevent that V type pressure spring frame from bounceing and droing, can also realize the quick assembly disassembly of V type pressure spring frame, just so reduced the change degree of difficulty of carbon brush, when guaranteeing carbon brush fixing device maintenance safety, improved the dismouting efficiency of carbon brush.
Description
Technical Field
The utility model relates to a device for installing and be fixed with brush excitation generator carbon brush belongs to motor technical field.
Background
In order to increase the current-carrying capacity of the carbon brush, some generators adopt a double carbon brush structure, and the traditional installation mode of the double carbon brush is shown in fig. 1 to 6. The fixing device of the carbon brush mainly comprises a base body 1, a pressure spring 3 and a V-shaped pressure spring frame 4, a carbon brush chamber 1-1 used for installing the carbon brush 2 and a pressure spring chamber 1-2 used for installing the V-shaped pressure spring frame 4 are arranged in the base body 1, the carbon brush 2 penetrates through the carbon brush chamber 1-1, a straight arm of the V-shaped pressure spring frame 4 leans against the side part of the carbon brush 2 and is fixedly connected with the pressure spring 3 pressed on the carbon brush 2, two sides of the other straight arm are provided with notches 7 corresponding to two clamping tables 5 in the pressure spring chamber 1-2, and after the V-shaped pressure spring frame 4 is installed in place, the two notches 7 are respectively clamped on the two clamping tables 5, so that the V-shaped pressure spring frame 4. In order to prevent the V-shaped pressure spring frame 4 from bouncing and falling off, a limiting beam 6 corresponding to the V-shaped pressure spring frame 4 is further arranged outside the pressure spring chamber 1-2. The fixing device for the carbon brush has the advantages that due to the existence of the limiting cross beam 6, the V-shaped pressure spring frame 4 cannot be taken down when the carbon brush 2 is replaced, maintenance personnel need to use a self-made tool to straighten the pressure spring 3 to take down the carbon brush 2, the disassembling method is low in efficiency, the pressure spring 3 and the V-shaped pressure spring frame 4 are easily damaged, faults of other parts such as the carbon brush and the slip ring are further caused, and the running reliability of a generator is reduced. The same problem also exists with the installation of carbon brushes. Therefore, how to realize safe and fast assembly and disassembly of the carbon brush becomes a problem for related technicians.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's drawback, a brush excitation generator carbon brush fixing device convenient to maintenance is provided, when guaranteeing carbon brush fixing device maintenance safety, improves the dismouting efficiency of carbon brush.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a there is brush excitation generator carbon brush fixing device convenient to maintenance, includes pedestal, pressure spring and V type pressure spring frame in the constitution, be equipped with carbon brush room and pressure spring room in the pedestal, the carbon brush of generator passes the carbon brush room and compresses tightly by the pressure spring, a straight arm of V type pressure spring frame lean on the lateral part of carbon brush and with pressure spring fixed connection, the both sides of another straight arm be equipped with the indoor corresponding opening of two ka tai of pressure spring, improve the back, respectively be equipped with the spacing platform of a pressure spring frame on two lateral walls of pressure spring room, distance between two spacing platforms of pressure spring frame is less than the width of V type pressure spring frame and is greater than the distance between two openings.
Above-mentioned brush excitation generator carbon brush fixing device convenient to maintenance, the spacing platform of pressure spring frame is the cylinder shape, and the difference between the width of the opening on the V type pressure spring frame and the diameter of the spacing platform of pressure spring frame is 2 mm.
According to the brush excitation generator carbon brush fixing device convenient to maintain, the difference between the width of the V-shaped pressure spring frame and the distance between the two pressure spring frame limiting tables is 4-5 mm.
According to the brush excitation generator carbon brush fixing device convenient to maintain, the difference between the distance between the two pressure spring frame limiting tables and the distance between the two openings on the V-shaped pressure spring frame is 2-3 mm.
The utility model discloses replace original spacing crossbeam with two spacing platforms of pressure spring frame, not only can prevent that V type pressure spring frame from bounceing and droing, through the opening of adjustment V type pressure spring frame and the position relation between the spacing platform of pressure spring frame, can also realize the quick assembly disassembly of V type pressure spring frame, just so reduced the change degree of difficulty of carbon brush, when guaranteeing carbon brush fixing device maintenance safety, improved the dismouting efficiency of carbon brush.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an external view of a conventional double carbon brush fixture;
fig. 2 is a sectional view of a conventional double carbon brush fixture;
FIG. 3 is a schematic structural diagram of a compression spring and a V-shaped compression spring frame;
FIG. 4 is a right side view of FIG. 3;
fig. 5 is a schematic diagram of a seat structure of a conventional double carbon brush fixing device;
FIG. 6 is a right side view of FIG. 5;
fig. 7 is a schematic view of the seat structure of the present invention;
fig. 8 is a sectional view of the present invention (a state when the outer V-shaped compression spring frame is detached);
fig. 9 is a right side view of fig. 8.
The reference numbers in the figures are as follows: 1. the carbon brush compression spring device comprises a base body, 1-1 parts of a carbon brush chamber, 1-2 parts of a compression spring chamber, 2 parts of a carbon brush, 3 parts of a compression spring, 4 parts of a V-shaped compression spring frame, 5 parts of a clamping table, 6 parts of a limiting cross beam, 7 parts of a notch, 8 parts of a compression spring frame limiting table.
Detailed Description
Referring to fig. 7, 8 and 9, the utility model discloses mainly include pedestal 1, pressure spring 3 and V type pressure spring frame 4, be equipped with the pressure spring room 1-2 that is used for installing carbon brush 2 in the pedestal 1 and is used for installing V type pressure spring frame 4, carbon brush 2 passes carbon brush room 1-1 and presses on brush excitation generator's sliding ring, pressure spring 3 presses on carbon brush 2, a straight arm of V type pressure spring frame 4 leans on the lateral part of carbon brush 2 and with pressure spring 3 fixed connection, the both sides of another straight arm of V type pressure spring frame 4 are equipped with the opening 7 corresponding with two ka tai 5 in the pressure spring room 1-2, after V type pressure spring frame 4 installed in place, two openings 7 block respectively on two ka tai 5, realize the location of V type pressure spring frame 4. In order to prevent the V-shaped pressure spring frame 4 from bouncing and falling off, two pressure spring frame limiting tables 8 are respectively arranged on two side walls of the pressure spring chambers 1-2, the distance between the two pressure spring frame limiting tables 8 is smaller than the width of the V-shaped pressure spring frame 4 (the difference is 4-5 mm), but is larger than the distance between two openings of the V-shaped pressure spring frame 4 (the difference is 2-3 mm), the two pressure spring frame limiting tables 8 are cylindrical, the diameter of each pressure spring frame is 2mm smaller than the width of the opening 7, and the pressure spring frame limiting tables 8 can penetrate through the opening 7.
When the V-shaped compressed spring frame 4 is accidentally bounced, the two compressed spring frame limiting tables 8 can prevent the V-shaped compressed spring frame from falling off because the width of the V-shaped compressed spring frame is larger than the distance between the two compressed spring frame limiting tables 8.
When the carbon brush 2 needs to be replaced, the short arm (namely, the straight arm with the notch 7) of the V-shaped pressure spring frame 4 is pulled by hand, so that the notch 7 is separated from the clamping table 5 in the pressure spring chamber 1-2 of the base body 1, then the short arm is drawn to the pressure spring frame limiting table 8, the notch 7 is aligned to the pressure spring frame limiting table 8 (as shown in fig. 8 and 9), then the pressure spring frame limiting table 8 penetrates through the notch 7, at this time, the V-shaped pressure spring frame 4 is lifted upwards, and the V-shaped pressure spring frame 4 and the pressure spring 3 can be detached from the base body 1.
After the carbon brush 2 is replaced, the V-shaped pressure spring frame 4 and the pressure spring 3 are installed in place by the reverse operation sequence of the V-shaped pressure spring frame 4 and the pressure spring 3.
Before the improvement, the required time of changing a carbon brush is 10 minutes probably, adopts the utility model discloses afterwards, it only needs 2 minutes to change a carbon brush, and change efficiency improves greatly, has reduced maintenance personal's intensity of labour simultaneously, has improved the generated energy. And the V-shaped pressure spring frame 4 and the pressure spring 3 are not damaged in the replacement process, so that the running reliability of the generator is improved.
The utility model discloses can directly reform transform by traditional two carbon brush fixing device and form, the transformation method is with 6 saw-offs of spacing crossbeam, and one section is removed in the middle, and the part that both ends remain constitutes two spacing platforms 8 of pressure spring frame. The length of the reserved part is determined according to the size of the gap 7 on the V-shaped pressure spring frame 4.
Claims (4)
1. A brush excitation generator carbon brush fixing device convenient for maintenance comprises a seat body (1), a pressure spring (3) and a V-shaped pressure spring frame (4), a carbon brush chamber (1-1) and a pressure spring chamber (1-2) are arranged in the base body (1), a carbon brush (2) of the generator penetrates through the carbon brush chamber (1-1) and is pressed by a pressure spring (3), one straight arm of the V-shaped pressure spring frame (4) leans against the side part of the carbon brush (2) and is fixedly connected with the pressure spring (3), two sides of the other straight arm are provided with notches (7) corresponding to the two clamping tables (5) in the pressure spring chamber (1-2), the pressure spring room is characterized in that two pressure spring frame limiting tables (8) are respectively arranged on two side walls of the pressure spring room (1-2), and the distance between the two pressure spring frame limiting tables (8) is smaller than the width of the V-shaped pressure spring frame (4) and larger than the distance between the two notches (7).
2. The brush excitation generator carbon brush fixing device convenient to maintain according to claim 1, wherein the compression spring frame limiting platform (8) is cylindrical, and the difference between the width of the notch (7) in the V-shaped compression spring frame (4) and the diameter of the compression spring frame limiting platform (8) is 2 mm.
3. The easy-to-maintain brush excitation generator carbon brush fixing device as claimed in claim 1 or 2, wherein the difference between the width of the V-shaped compression spring frame (4) and the distance between the two compression spring frame limiting tables (8) is 4-5 mm.
4. The easy-to-maintain brush excitation generator carbon brush fixing device as claimed in claim 3, wherein the difference between the distance between the two compression spring frame limiting tables (8) and the distance between the two notches (7) on the V-shaped compression spring frame (4) is 2-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922130771.3U CN211018471U (en) | 2019-12-02 | 2019-12-02 | Brush excitation generator carbon brush fixing device convenient to maintain |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922130771.3U CN211018471U (en) | 2019-12-02 | 2019-12-02 | Brush excitation generator carbon brush fixing device convenient to maintain |
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| CN211018471U true CN211018471U (en) | 2020-07-14 |
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| CN201922130771.3U Active CN211018471U (en) | 2019-12-02 | 2019-12-02 | Brush excitation generator carbon brush fixing device convenient to maintain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928569A (en) * | 2021-01-29 | 2021-06-08 | 上海电气风电集团股份有限公司 | Carbon brush device |
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2019
- 2019-12-02 CN CN201922130771.3U patent/CN211018471U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928569A (en) * | 2021-01-29 | 2021-06-08 | 上海电气风电集团股份有限公司 | Carbon brush device |
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