Generator brush holder device

Abstract

The utility model relates to the technical field of power generation devices, in particular to a generator brush holder device, which comprises a fixed seat, a conductive block arranged on the fixed seat and a brush box mechanism connected with the conductive block, and the brush box mechanism comprises a box body and a pressure spring arranged in the box body. The pressure spring comprises a U-shaped spring and coil springs arranged at the two free ends of the U-shaped spring, the coil springs are used for pressing the carbon brush, and the generator brush holder device can ensure that the carbon brush is uniformly stressed, prevents the force point of the carbon brush from being eccentric, and reduces the friction force.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation devices, in particular to a generator brush holder device. Background Art

[0002] The main function of a generator brush holder is to apply pressure to the carbon brush that slides in contact with the surface of the commutator or slip ring, so as to enable the carbon brush to stably conduct current between the fixed body and the spiral body. To ensure the normal operation of the generator, it is necessary to ensure that the carbon brush can be replaced and adjusted quickly and conveniently, and to ensure that the temperature of the carbon brush will not be too high.

[0003] In the existing brush holding device, the carbon brush is prone to uneven force, which causes the force point of the carbon brush to be eccentric, thereby increasing the friction force. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a generator brush holder device, which can ensure uniform force on the carbon brush, avoid eccentricity of the carbon brush force point, and reduce the friction force.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the embodiments of the present application provide a generator brush holder device, including a fixed seat, a conductive block arranged on the fixed seat, and a brush box mechanism connected to the conductive block. The brush box mechanism includes a box body and a compression spring arranged in the box body. The compression spring includes a U-shaped spring and coil springs arranged at two free ends of the U-shaped spring. The coil springs are used to compress the carbon brush.

[0008] In a possible implementation manner, an assembly hole is arranged on the box body, and a clamping convex block is arranged on the U-shaped spring. The clamping convex block is clamped in the assembly hole.

[0009] In a possible implementation manner, a plurality of assembly spaces are arranged on the box body. The compression spring is arranged in the assembly space. A partition is arranged between adjacent two assembly spaces. Heat dissipation holes are arranged on the partition.

[0010] In a possible implementation manner, a chute is arranged on the fixed seat. The conductive block includes: a conductive brick, which is slidably arranged in the chute. An adjustment hole is arranged on the conductive brick; an adjustment bolt, which penetrates through the adjustment hole and is threadedly connected to the box body; and a locking assembly, which is arranged on the conductive brick and is used for locking and unlocking the conductive brick and the fixed seat; wherein, an operation hole corresponding to the adjustment bolt is arranged on the fixed seat.

[0011] In a possible implementation, the conductive brick is provided with perforations. The fixing base includes a base and a pin plate connected to the base. The locking assembly includes: a connecting shaft movably disposed in the perforations, and a locking member disposed at the bottom of the connecting shaft and cooperating with the pin plate; a handle disposed at an end of the connecting shaft away from the locking member, and a protective cover space is formed between the handle and the conductive brick; and a disc spring disposed in the protective cover space, with both ends of the disc spring abutting against the handle and the conductive brick respectively.

[0012] In a possible implementation, a limiting portion is provided on the connecting shaft, and the brush box mechanism further includes a pressing plate disposed on the box body, and the pressing plate is used to abut against the limiting portion of the connecting shaft.

[0013] (III) Advantageous Effects

[0014] Compared with the prior art, the present utility model provides a generator brush holder device, which has the following advantageous effects: The generator brush holder device uses the coil springs at the two free ends of the U-shaped spring to restrain the carbon brush in the box body, which can ensure uniform force on the carbon brush, avoid eccentricity of the force point of the carbon brush, reduce friction, and ensure more stable and effective operation of the carbon brush in the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 shows a schematic structural view of a generator brush holder device provided by an embodiment of the present application;

[0016] Figure 2 FIG. 2 shows a three-dimensional structural view of a compression spring provided by an embodiment of the present application;

[0017] Figure 3 FIG. 3 shows a three-dimensional structural view of a box body provided by an embodiment of the present application;

[0018] Figure 4 FIG. 4 shows a three-dimensional structural view of a fixing base provided by an embodiment of the present application;

[0019] Figure 5 FIG. 5 shows a three-dimensional structural view of a conductive block provided by an embodiment of the present application;

[0020] Figure 6 FIG. 6 shows a cross-sectional structural view of a conductive block provided by an embodiment of the present application;

[0021] Figure 7 FIG. 7 shows a cross-sectional structural view of a brush box mechanism provided by an embodiment of the present application.

[0022] Reference numerals in the drawings:

[0023] 1. Fixing base; 11. Chute; 12. Base; 13. Pin plate; 14. Operation hole;

[0024] 2. Conductive block; 21. Conductive brick; 211. Adjusting hole; 22. Adjusting bolt; 23. Locking assembly; 231. Connecting shaft; 2311. Limiting part; 232. Locking piece; 233. Handle; 234. Cover space; 235. Disc spring;

[0025] 3. Brush box mechanism; 31. Box body; 311. Assembly hole; 312. Assembly space; 313. Partition board; 314. Heat dissipation hole; 32. Compression spring; 321. U-shaped spring; 322. Coil spring; 323. Clamping convex block; 33. Pressure plate. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 7 , an embodiment of the present application provides a generator brush holder device, including a fixed seat 1, a conductive block 2 disposed on the fixed seat 1, and a brush box mechanism 3 connected to the conductive block 2. The brush box mechanism 3 includes a box body 31 and a compression spring 32 disposed in the box body 31. The compression spring 32 includes a U-shaped spring 321 and coil springs 322 disposed at two free ends of the U-shaped spring 321. The coil springs 322 are used to press the carbon brush.

[0028] In the present application, the carbon brush in the box body 31 is constrained by the coil springs 322 at two free ends of the U-shaped spring 321, which can ensure uniform force on the carbon brush, avoid eccentricity of the force point of the carbon brush, reduce friction, and ensure more stable and effective operation of the carbon brush in the box body 31.

[0029] In some embodiments, an assembly hole 311 is provided on the box body 31, and a clamping convex block 323 is provided on the U-shaped spring 321. The clamping convex block 323 is clamped in the assembly hole 311.

[0030] In the present application, the U-shaped spring 321 of the compression spring 32 is assembled with the assembly hole 311 of the box body 31 through the clamping convex block 323, which facilitates the assembly of the compression spring 32 and the box body 31.

[0031] In some embodiments, a plurality of assembly spaces 312 are provided on the box body 31, the compression spring 32 is disposed in the assembly space 312, a partition board 313 is provided between two adjacent assembly spaces 312, and heat dissipation holes 314 are provided on the partition board 313.

[0032] In this application, the heat dissipation holes 314 facilitate ventilation and heat dissipation, thereby reducing the temperature inside the box body 31, protecting the carbon brush from abnormal wear and indirectly protecting the slip ring from the damage caused by high temperature.

[0033] In some embodiments, a chute 11 is provided on the fixing seat 1. The conductive block 2 includes: a conductive brick 21 slidably disposed in the chute 11, and an adjustment hole 211 is provided on the conductive brick 21; an adjustment bolt 22 passing through the adjustment hole 211 and threadedly connected to the box body 31; and a locking assembly 23 provided on the conductive brick 21 for locking and unlocking the conductive brick 21 and the fixing seat 1. Among them, an operation hole 14 corresponding to the adjustment bolt 22 is provided on the fixing seat 1.

[0034] In this application, the adjustment bolt 22 can be adjusted through the operation hole 14. After loosening the adjustment bolt 22, the carbon brush mechanism can be adjusted. After adjusting the position, tighten the adjustment bolt 22, so as to realize on-line adjustment during operation and avoid the phenomenon of overload and high heat caused by too high carbon brush temperature, greatly reducing the safety failure and maintenance efficiency.

[0035] In some embodiments, a perforation is provided on the conductive brick 21. The fixing seat 1 includes a base 12 and a pin plate 13 connected to the base 12. The locking assembly 23 includes: a connecting shaft 231 movably disposed in the perforation, and a locking member 232 cooperating with the pin plate is provided at the bottom of the connecting shaft 231; a handle 233 provided at one end of the connecting shaft 231 away from the locking member 232, and a cover space 234 is formed between the handle 233 and the conductive brick 21; and a disc spring 235 provided in the cover space 234, and both ends of the disc spring 235 are respectively abutted against the handle 233 and the conductive brick 21.

[0036] In this application, the connecting shaft 231 can rotate in the perforation and can also move axially. When locking, hold the handle 233 and press downwards, compress the disc spring 235 to make the connecting shaft 231 move downwards, and then rotate the handle 233 to complete the locking of the locking member 232 and the pin plate 13; when unlocking, press down the handle 233 and then rotate the handle 233 in the reverse direction, and under the action of the disc spring 235, the connecting shaft 231 is reset.

[0037] In some embodiments, a limiting portion 2311 is provided on the connecting shaft 231. The brush box mechanism 3 further includes a pressing plate 33 provided on the box body 31, and the pressing plate 33 is used to abut against the limiting portion 2311 of the connecting shaft 231.

[0038] In this application, through the cooperation of the pressing plate 33 and the limiting portion 2311, the connecting shaft 231 can be positioned to assist in positioning the connecting shaft 231.

[0039] The generator brush holder device uses the coil springs 322 at the two free ends of the U-shaped spring 321 to restrain the carbon brushes in the box body 31, which can ensure uniform force on the carbon brushes, avoid eccentricity of the force points of the carbon brushes, reduce friction, and ensure more stable and effective operation of the carbon brushes in the box body 31.

[0040] It should be noted that the phrases such as "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures or characteristics with an embodiment, it is within the knowledge scope of those skilled in the art to implement such features, structures or characteristics in combination with other embodiments, whether explicitly or implicitly described.

[0041] It should be easily understood that the terms "on", "above" and "upon" in the present disclosure should be interpreted in the broadest manner, so that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "upon" not only includes the meaning of "above or on something", but also may include the meaning of "above or on something" with no intermediate features or layers therebetween (i.e., directly on something).

[0042] In addition, for the convenience of description, spatial relative terms such as "below", "beneath", "under", "above", "over", etc. may be used in the text to describe the relationship of one element or feature with respect to other elements or features as shown in the figures. Spatial relative terms are intended to cover different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive words used in the text may be interpreted accordingly.

[0043] It should be noted that in this text, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A generator brush holder device, characterized in that: The invention comprises a fixing seat (1), a conductive block (2) arranged on the fixing seat (1), and a brush box mechanism (3) connected to the conductive block (2); the brush box mechanism (3) comprises a box body (31) and a compression spring (32) arranged in the box body (31); the compression spring (32) comprises a U-shaped spring (321) and a coil spring (322) arranged at two free ends of the U-shaped spring (321); the coil spring (322) is used for compressing a carbon brush.

2. A generator brush holder device according to claim 1, characterized in that: The box body (31) is provided with an assembly hole (311), and the U-shaped spring (321) is provided with a clamping protrusion (323), and the clamping protrusion (323) is clamped in the assembly hole (311).

3. A generator brush holder device according to claim 1, characterized in that: A plurality of assembly spaces (312) are provided on the box body (31), the compression spring (32) is arranged in the assembly space (312), a partition (313) is provided between two adjacent assembly spaces (312), and a heat dissipation hole (314) is provided on the partition (313).

4. A generator brush holder device according to claim 1, characterized in that: The fixing seat (1) is provided with a sliding groove (11), and the conductive block (2) comprises: A conductive brick (21) is slidably disposed in the slide groove (11), and an adjustment hole (211) is disposed on the conductive brick (21); an adjusting bolt (22), passing through the adjusting hole (211) and connected to the box body (31) via a threaded connection; and A locking assembly (23), arranged on the conductive brick (21), and used for locking and unlocking the conductive brick (21) and the fixing seat (1); Wherein, the fixing seat (1) is provided with an operating hole (14) corresponding to the adjusting bolt (22).

5. A generator brush holder device according to claim 4, characterized in that: The conductive brick (21) is provided with a through hole, the fixing seat (1) comprises a base (12) and a pin plate (13) connected to the base (12), and the locking assembly (23) comprises: A connecting shaft (231) is movably disposed in the through hole, and a locking member (232) that cooperates with the pin plate (13) is disposed at the bottom of the connecting shaft (231); a handle (233) disposed at an end of the connecting shaft (231) away from the locking member (232), wherein a protective cover space (234) is formed between the handle (233) and the conductive brick (21); and A disc spring (235) is arranged in the protective cover space (234), and two ends of the disc spring (235) are respectively in contact with the handle (233) and the conductive brick (21).

6. A generator brush holder device according to claim 5, characterized in that: A limiting portion (2311) is provided on the connecting shaft (231), and the brush box mechanism (3) further comprises a pressing plate (33) provided on the box body (31), wherein the pressing plate (33) is used for abutting against the limiting portion (2311) of the connecting shaft (231).

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