Carbon brush monitoring device and system

Abstract

The invention discloses a carbon brush monitoring device and system, and belongs to the technical field of carbon brush monitoring. The carbon brush is inserted into the shell, and the bottom end of the carbon brush can abut against a collector ring; the elastic piece is rotationally installed on the shell, one end of the elastic piece can abut against the side wall of the carbon brush, and the other end of the elastic piece abuts against the top of the carbon brush after being wound; and after the carbon brush is worn, the elastic piece drives the carbon brush to move towards the direction close to the collecting ring. By optimizing the elastic piece, the redundant redundant structure is simplified, integration is achieved, the function of adjusting the fitting degree of the carbon brush is achieved, meanwhile, sparks generated when the carbon brush or the collecting ring is abnormally abraded are monitored in real time, and damage is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of carbon brush monitoring, in particular to a carbon brush monitoring device and system. Background Art

[0002] During the operation of the generator, the transmission path of the excitation current is crucial. The current first passes through the conductive ring on the brush holder, then smoothly passes to the brush holder, then passes through the brush holder to the brush box and carbon brush, and finally reaches the collector ring of the generator.

[0003] like Figure 1 As shown in the figure, the traditional carbon brush installation device has a complex structure, usually including components such as a brush box, a push device, a limit device or a spring. A constant force spring is installed on the carbon brush to ensure that the carbon brush maintains a certain pressure on the collector ring to maintain stable electrical contact. The connection between the brush holder head and the brush holder seat relies on a locking mechanism. This design is structurally redundant and urgently needs structural optimization to improve efficiency and reliability.

[0004] In terms of monitoring carbon brush wear, early methods mainly relied on manual inspection, which is not only inefficient but also easily affected by human factors, resulting in errors. Carbon brush wear is a continuous and gradual process. In order to accurately grasp its wear condition, regular and precise measurements are required. However, manual inspection often fails to meet this requirement because it is not only time-consuming and labor-intensive, but also difficult to achieve continuous and accurate monitoring in actual operation. Therefore, it is particularly important to develop an automated, high-precision carbon brush wear monitoring system, which will greatly improve the accuracy and efficiency of monitoring, reduce the risk of generator failure due to carbon brush wear, and extend the service life of the equipment. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0007] Therefore, the first object of the present invention is to provide a carbon brush monitoring device which can simplify the redundant structure, be more integrated and also realize the integrated functions of pushing and locking.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a carbon brush monitoring device, comprising a shell; a carbon brush, which is plugged into the shell, and the bottom end of the carbon brush can conflict with the collector ring; an elastic member, which is rotatably installed on the shell, one end of the elastic member can conflict with the side wall of the carbon brush, and the other end of the elastic member is wound and conflicts with the top of the carbon brush; when the carbon brush is worn, the elastic member drives the carbon brush to move toward the collector ring.

[0009] As a preferred solution of the carbon brush monitoring device of the present invention, wherein: a first mounting groove is opened on the shell, the carbon brush is inserted in the first mounting groove, and the carbon brush can slide along the length direction of the first mounting groove.

[0010] As a preferred solution of the carbon brush monitoring device of the present invention, the bottom of the shell is further provided with a second mounting groove, the second mounting groove and the first mounting groove are arranged parallel to each other, and the second mounting groove passes through the side wall of the shell facing the carbon brush.

[0011] As a preferred solution of the carbon brush monitoring device of the present invention, wherein: the elastic member includes a rotating part, the rotating part is in an arc shape, a rotating shaft is provided in the second mounting groove, the rotating part can wrap the rotating shaft, and the rotating part can rotate along the circumferential direction of the rotating shaft.

[0012] As a preferred solution of the carbon brush monitoring device of the present invention, the elastic member further comprises an extrusion portion, a connecting groove is further provided between the first mounting groove and the second mounting groove, and the extrusion portion passes through the connecting groove and contacts the side wall of the carbon brush.

[0013] As a preferred solution of the carbon brush monitoring device of the present invention, a spring is further provided in the second installation groove, the spring can contact with the elastic member, and the spring drives the extrusion portion to move toward the side wall close to the carbon brush.

[0014] As a preferred solution of the carbon brush monitoring device of the present invention, wherein: the elastic member also includes a resistance portion, the resistance portion extends from the second mounting groove, and the resistance portion after being wound is in resistance with the top of the carbon brush, and the resistance portion after being wound applies pressure to the carbon brush, and the pressure can drive the carbon brush to move in a direction close to the collector ring.

[0015] As a preferred solution of the carbon brush monitoring device of the present invention, when the carbon brush is worn, the wound abutment portion unfolds under the action of its own elastic potential energy, and the unfolded abutment portion still abuts against the top of the carbon brush.

[0016] As a preferred solution of the carbon brush monitoring device of the present invention, wherein: the radius of the abutment portion after expansion is greater than the radius of the abutment portion in an initial state.

[0017] A second object of the present invention is to provide a carbon brush monitoring system that can monitor in real time the sparks generated when the carbon brush or the collector ring is abnormally worn.

[0018] To solve the above technical problems, the present invention provides the following technical solutions: a carbon brush monitoring system, comprising the above-mentioned carbon brush monitoring device, and an infrared monitoring module, which is used to monitor the sliding distance of the carbon brush and the sparks generated when the carbon brush or the collector ring is worn; a data acquisition module, which is used to collect the data monitored by the infrared monitoring module, and analyze and process it to generate a detailed report, the report including a trend analysis of the carbon brushing degree and a location distribution map of the carbon brushing points; a control module, which is used to control the infrared monitoring module and the data acquisition module, and can view the carbon brushing data and reports in real time.

[0019] The beneficial effects of the present invention are as follows: by optimizing the elastic part, simplifying the redundant structure, replacing the existing push and locking structure, it is more integrated and also realizes the function of adjusting the fit of the carbon brush, while real-time monitoring of the sparks generated by abnormal wear of the carbon brush or collector ring is performed to prevent damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a structural diagram of a carbon brush monitoring device in the prior art.

[0022] Figure 2 This is the usage status diagram of the carbon brush monitoring device.

[0023] Figure 3 This is the structural diagram of the carbon brush monitoring device.

[0024] Figure 4 A cross-sectional view of a carbon brush monitoring device.

[0025] Figure 5 This is the connection diagram of the carbon brush monitoring system. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figure 2 , which is the first embodiment of the present invention, provides a carbon brush monitoring device, including a housing 100 , a carbon brush 200 and an elastic member 300 .

[0032] Specifically, the carbon brush 200 is plugged into the housing 100, and the carbon brush 200 can slide along the length direction of the housing 100, and the bottom end of the carbon brush 200 can conflict with the collector ring. The elastic member 300 is rotatably mounted on the housing 100, and one end of the elastic member 300 can conflict with the side wall of the carbon brush 200 to limit the carbon brush 200 from loosening from the housing 100. The other end of the elastic member 300 is wound and conflicts with the top of the carbon brush 200 to continuously apply a force toward the collector ring to the carbon brush; when the carbon brush 200 is worn, the elastic member 300 drives the carbon brush 200 to move toward the collector ring.

[0033] By using the elastic member 300 to drive the carbon brush 200 to move toward the collector ring, the complicated push and lock structure that may exist in the traditional monitoring device is simplified. The device design is more compact, the space occupation is reduced, and it is easy to install and maintain. The elastic member 300 can automatically respond to the wear of the carbon brush 200 and realize the automatic adjustment of the contact pressure between the carbon brush 200 and the collector ring.

[0034] Example 2

[0035] This is the second embodiment of the present invention, which is basically the same as the embodiment 1, except that.

[0036] In this embodiment, the elastic member 300 is made of spring steel to improve its wear resistance and elastic recovery ability, ensuring stable performance in long-term operation. The carbon brush 200 is made of graphite material to improve its conductivity and wear resistance, reducing the problem of poor contact caused by wear.

[0037] Example 3

[0038] See also Figure 2 to Figure 4 , which is the third embodiment of the present invention, and this embodiment is based on embodiment 1.

[0039] Specifically, the housing 100 is provided with a first mounting groove 101, the carbon brush 200 is inserted into the first mounting groove 101, and the carbon brush 200 can slide along the length direction of the first mounting groove 101. The carbon brush 200 is provided with adaptability and flexibility to adapt to different wear conditions.

[0040] Preferably, a second mounting groove 102 is further provided at the bottom of the shell 100. The second mounting groove 102 and the first mounting groove 101 are arranged parallel to each other, and the second mounting groove 102 passes through the side wall of the shell 100 facing the carbon brush 200. By arranging the second mounting groove 102 parallel to the first mounting groove 101, the stability of the overall structure is enhanced, and secondly, the installation of the elastic member 300 is facilitated.

[0041] Preferably, the elastic member 300 includes a rotating portion 301, which is arc-shaped. A rotating shaft 103 is provided in the second mounting groove 102. The rotating portion 301 and the rotating shaft 103 are coaxially arranged. The rotating portion 301 can wrap around the rotating shaft 103, and the rotating portion 301 can rotate along the circumferential direction of the rotating shaft 103. The arc-shaped design of the rotating portion 301 and the arrangement of the rotating shaft 103 make the rotation of the elastic member 300 more flexible, thereby improving the response speed and accuracy.

[0042] Preferably, the elastic member 300 also includes an extrusion portion 302, and a connecting groove 104 is also provided between the first mounting groove 101 and the second mounting groove 102, and the extrusion portion 302 passes through the connecting groove 104 and contacts the side wall of the carbon brush 200; the design of the extrusion portion 302 enhances the contact pressure between the elastic member 300 and the side wall of the carbon brush 100, improves the stability and responsiveness of the carbon brush 200, and enhances the contact pressure.

[0043] Furthermore, a spring 105 is provided in the second mounting groove 102 . The spring 105 can resist the elastic member 300 . The spring 105 always provides a force to drive the carbon brush 200 to fit the inner wall of the first mounting groove 101 . The spring 105 drives the extrusion portion 302 to move toward the side wall of the carbon brush 200 .

[0044] Furthermore, the elastic member 300 also includes a resistance portion 303, which extends from the second mounting groove 102 and is wound into a ring shape, and the wound resistance portion 303 is in resistance with the top of the carbon brush 200. The wound resistance portion 303 applies pressure to the carbon brush 200, and the pressure can drive the carbon brush 200 to move toward the direction close to the collector ring; the design of the resistance portion 303 enables the elastic member 300 to apply pressure to the carbon brush 200 more effectively, ensuring good contact between the carbon brush 200 and the collector ring, and enhancing pressure transmission.

[0045] Furthermore, when the carbon brush 200 is worn, the wound resistance portion 303 unfolds under the action of its own elastic potential energy, and the unfolded resistance portion 303 still conflicts with the top of the carbon brush 200. The resistance portion 303 can automatically unfold and continue to conflict with the top of the carbon brush 200 after the carbon brush 200 is worn, driving the carbon brush 200 to move axially and contact the collector ring to achieve adaptive adjustment.

[0046] Furthermore, the radius of the expanded contact portion 303 is greater than the radius of the initial contact portion 303 , thereby increasing the contact area. The expanded radius of the expanded contact portion 303 increases, thereby increasing the contact area with the top of the carbon brush 200 and improving stability.

[0047] Example 4

[0048] See also Figure 5 , which is the fourth embodiment of the present invention, and is based on embodiment 1 or embodiment 3. This embodiment provides a carbon brush monitoring system, including an infrared detection module 400 , a data acquisition module 500 and a control module 600 .

[0049] Specifically, the infrared monitoring module 400 is used to monitor the sliding distance of the carbon brush 200 and the sparks generated when the carbon brush 200 or the collector ring is worn; the data acquisition module is used to collect the data monitored by the infrared monitoring module 400, analyze and process it, and generate a detailed report, which includes the trend analysis of the carbon brushing degree and the location distribution map information of the carbon brushing points; the control module 600 is used to control the infrared monitoring module 400 and the data acquisition module 500, and can view the carbon brushing data and reports in real time. Through the integration of the infrared monitoring module 400, the data acquisition module 500 and the control module 600, real-time monitoring and analysis of the wear and spark generation of the carbon brush 200 are realized, and the accuracy and response speed of the monitoring are improved.

[0050] Based on the above, the beneficial effects of the present invention are:

[0051] 1. By optimizing the elastic member 300 and simplifying the redundant structure, the existing push mechanism and locking mechanism are replaced, which is more integrated and also realizes the function of adjusting the fit of the carbon brush 200.

[0052] 2. Monitor the sparks generated by abnormal wear of the carbon brush 200 or the collector ring in real time to prevent damage.

[0053] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0054] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0055] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A carbon brush monitoring device, characterized in that: include: Housing (100); A carbon brush (200) is plugged into the housing (100), and the bottom end of the carbon brush (200) can contact the collector ring; An elastic member (300) is rotatably mounted on the housing (100), one end of the elastic member (300) being able to abut against a side wall of the carbon brush (200), and the other end of the elastic member (300) being wound and abutting against a top of the carbon brush (200); When the carbon brush (200) is worn, the elastic member (300) drives the carbon brush (200) to move in a direction close to the collector ring.

2. The carbon brush monitoring device according to claim 1, characterized in that: The housing (100) is provided with a first installation groove (101), the carbon brush (200) is inserted into the first installation groove (101), and the carbon brush (200) can slide along the length direction of the first installation groove (101).

3. The carbon brush monitoring device according to claim 2, characterized in that: The bottom of the housing (100) is also provided with a second mounting groove (102), the second mounting groove (102) and the first mounting groove (101) are arranged parallel to each other, and the second mounting groove (102) passes through the side wall of the housing (100) facing the carbon brush (200).

4. The carbon brush monitoring device according to claim 3, characterized in that: The elastic member (300) comprises a rotating portion (301), the rotating portion (301) is in an arc shape, a rotating shaft (103) is provided in the second mounting groove (102), the rotating portion (301) can wrap around the rotating shaft (103), and the rotating portion (301) can rotate along the circumferential direction of the rotating shaft (103).

5. The carbon brush monitoring device according to claim 3 or 4, characterized in that: The elastic member (300) further comprises an extrusion portion (302), a communication groove (104) is further provided between the first installation groove (101) and the second installation groove (102), and the extrusion portion (302) passes through the communication groove (104) and abuts against the side wall of the carbon brush (200).

6. The carbon brush monitoring device according to claim 5, characterized in that: A spring (105) is also provided in the second installation groove (102), and the spring (105) is capable of contacting the elastic member (300). The spring (105) drives the pressing portion (302) to move towards the side wall of the carbon brush (200).

7. The carbon brush monitoring device according to claim 6, characterized in that: The elastic member (300) further comprises a resistance portion (303), the resistance portion (303) extending from the second mounting groove (102), and the resistance portion (303) after being wound is in resistance with the top of the carbon brush (200), and the resistance portion (303) after being wound applies pressure to the carbon brush (200), and the pressure can drive the carbon brush (200) to move in a direction close to the collector ring.

8. The carbon brush monitoring device according to claim 7, characterized in that: When the carbon brush (200) is worn, the wound abutment portion (303) unfolds under the action of its own elastic potential energy, and the unfolded abutment portion (303) still abuts against the top of the carbon brush (200).

9. The carbon brush monitoring device according to claim 8, characterized in that: The radius of the interference portion (303) after expansion is greater than the radius of the interference portion (303) in the initial state.

10. A carbon brush monitoring system, characterized in that: include: The carbon brush monitoring device according to any one of claims 1 to 9, and An infrared monitoring module (400) for monitoring the sliding distance of the carbon brush (200) and sparks generated when the carbon brush (200) or the collector ring is worn; A data acquisition module (500) is used to collect data monitored by the infrared monitoring module (400), analyze and process the data, and generate a report, wherein the report includes information on the trend of the carbon brushing degree and the location distribution map of the carbon brushing points; The control module (600) is used to control the infrared monitoring module (400) and the data acquisition module (500), and is capable of viewing carbon brushing data and reports in real time.

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