Generator brush carrier dust collection device

Abstract

The utility model relates to the technical field, in particular to a generator brush carrier dust collection device, which comprises a generator body, a dust collection cover is sleeved on the periphery of a collecting ring of the generator body, observation window assemblies are arranged in the dust collection cover, each observation window assembly comprises an observation window and a square observation hole arranged on the observation window, and the observation window is provided with a plurality of observation holes. The dust collection cover and the observation window assemblies jointly define a closed cavity, and a carbon brush corresponding to the square observation hole in position is arranged in the closed cavity. According to the utility model, by adopting fewer observation window assemblies and reducing the number of fixing bolts, the installation process is simplified, the installation time and the labor cost are saved, the cost and the difficulty of subsequent maintenance are reduced, and further, the probability of potential safety hazards caused by loosening or falling off of the bolts is reduced due to the reduction of the number of the bolts; a maintainer can observe the abrasion condition of the carbon brush more conveniently and maintain the carbon brush, the maintenance efficiency is improved, and the downtime is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical field, more particularly, relate to a generator brush holder dust collecting device. BACKGROUND

[0002] The generator brush holder is the core component of the excitation system, and bears the functions of carbon brush positioning, excitation current conduction and carbon powder collection. The existing brush holder dust collecting cover generally adopts a split type observation window structure, that is, each carbon brush corresponds to an independent observation window, and is fixed on the dust collecting cover frame by 4-6 M4 bolts to form a closed cavity to collect the carbon powder generated by the carbon brush wear. However, in the case of limited axial space of the collector ring, a single observation window needs to occupy a width of 12-15 mm, resulting in an additional consumption of 18%-20% of the radial space for each additional carbon brush group, and for a multi-carbon brush unit, hundreds of bolts need to be operated for single inspection. Not only is the disassembly and assembly time-consuming, but there is also a possibility of bolt thread slipping during the disassembly and assembly process, which causes local stress concentration of the sealing strip between the observation window and the frame, accelerates aging and cracking, and seriously restricts the configuration density and operation reliability of the large-capacity generator carbon brush. Therefore, it is urgent to develop a new integrated dust collecting cover structure to break through the space constraint and improve the maintainability. SUMMARY

[0003] The utility model aims at providing a generator brush holder dust collecting device, which solves the above technical problems.

[0004] The embodiment of the utility model realizes the following technical scheme:

[0005] A generator brush holder dust collecting device, comprising a generator body, a dust collecting cover is provided on the periphery of the collector ring of the generator body;

[0006] An observation window assembly is arranged in the dust collecting cover, each observation window assembly comprises an observation window and a square observation hole arranged thereon;

[0007] The dust collecting cover and each observation window assembly jointly enclose a closed cavity, and a carbon brush corresponding to the square observation hole is arranged in the closed cavity.

[0008] The closed cavity effectively limits the dust generated by the wear to be in the closed cavity, which can be easily removed by subsequent cleaning or dust collection, avoiding the diffusion of the dust and the pollution to the environment.

[0009] As a preferred, the observation window is detachably connected with the dust collecting cover through the bolt.

[0010] The observation window is provided with a threaded hole matched with the bolt, and the detachable connection facilitates the replacement and cleaning of the observation window.

[0011] As preferably, the observation window assemblies are uniformly arranged around the slip ring axis of the generator body at an equal angle of 8 groups, the observation window is made of transparent or translucent polymer material, and at least two square observation holes are arranged on each observation window assembly.

[0012] This uniform distribution can ensure that the entire slip ring of the generator body is observed during maintenance, and the operator can timely find and solve potential problems. In addition, the polymer observation window has the advantages of light weight, good impact resistance, easy processing, good transparency and durability, so that the operator can clearly observe the running state of the slip ring and the carbon brush. At the same time, the square observation hole is distributed on the observation window according to the position of the carbon brush to expand the observation field of view, and different angle observation of the slip ring can be realized.

[0013] As preferably, a dust suction port is arranged in the closed cavity, and the dust suction port is used to absorb the carbon powder in the dust cover.

[0014] The dust suction port is directly connected with the closed cavity formed by the dust cover and the observation window, which can efficiently absorb the carbon powder generated in the dust cover, thereby reducing environmental pollution and improving the cleaning efficiency and maintenance convenience of the equipment.

[0015] As preferably, a brush holder is arranged in the closed cavity, and the brush holder is used to support the carbon brush, and a base is arranged in the closed cavity, and the base is used to fix the brush holder.

[0016] The design of the brush holder can effectively fix and support the carbon brush to ensure that the carbon brush and the slip ring can maintain good contact and reduce the scattering of carbon powder. The base provides a stable platform for the brush holder to ensure firm installation and accurate positioning of the brush holder, thereby ensuring reliable contact between the carbon brush and the slip ring and minimizing the scattering of carbon powder.

[0017] As preferably, a dust concentration sensor, a microprocessor and an alarm are further included, the dust concentration sensor is used to detect the dust concentration value in the closed cavity, the microprocessor is used to receive the detection data of the dust concentration sensor, the alarm is used to receive the output data of the microprocessor to send an alarm signal, and the vibration sensor and the position sensor are electrically connected with the microprocessor.

[0018] When the dust concentration exceeds the safety threshold, the microprocessor will send a signal to the alarm to trigger the alarm. This early warning mechanism can timely remind the operator to take measures.

[0019] As preferably, a vibration sensor for detecting the vibration frequency of the carbon brush and a position sensor for detecting the position of the carbon brush are further included, and the contact resistance sensor is electrically connected with the microprocessor.

[0020] The vibration sensor can detect the vibration frequency of the carbon brush in real time, and through analysis of the vibration data, the working state and health condition of the carbon brush can be identified, and the position sensor is used for detecting the position of the carbon brush to ensure that it works in the correct position, and the position data detected by the position sensor can help to judge the contact condition between the carbon brush and the motor to ensure good electrical contact.

[0021] As preferably, a contact resistance sensor for detecting the contact resistance between the carbon brush and the collector ring is further included.

[0022] The contact resistance sensor can monitor the contact resistance value between the carbon brush and the collector ring in real time, and good contact resistance helps to reduce energy loss and improve the working efficiency of the motor. By monitoring and optimizing the contact resistance, the system can ensure that the motor operates in the best state.

[0023] The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0024] The utility model discloses a dust collecting device for generator brush holder, which cancels the structure corresponding one by one between the traditional observation window and the carbon brush, adopts fewer observation window components, reduces the number of fixing bolts, effectively reduces the overall volume and weight of the dust collecting device, simplifies the installation process, saves the installation time and labor cost, and reduces the cost and difficulty of subsequent maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A schematic diagram of the dust collecting device for the generator brush holder is provided in the utility model.

[0026] Figure 2 A schematic diagram of the base structure of the dust collecting device for the generator brush holder is provided in the utility model.

[0027] Figure 3 A schematic diagram of the connection of the electrical components of the dust collecting device for the generator brush holder is provided in the utility model.

[0028] Legend: 1-observation window, 2-square observation hole, 3-dust suction port, 4-dust collecting cover, 5-brush holder, 6-base. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] like Figure 1 As shown, a generator brush holder dust collection device includes a generator body, and a dust collection cover 4 is sleeved around the collector ring of the generator body;

[0031] The dust collection hood 4 is provided with an observation window assembly, each observation window assembly including an observation window 1 and a square observation hole 2 disposed thereon;

[0032] The dust collection hood 4 and each observation window assembly together form a sealed cavity, and a carbon brush corresponding to the position of the square observation hole 2 is provided in the sealed cavity.

[0033] Unlike the traditional one-to-one correspondence between carbon brushes and observation windows, this embodiment has multiple carbon brushes installed in a sealed cavity, with the number exceeding the number of observation window components. Each carbon brush corresponds to a specific square observation hole. This design effectively reduces the number of frames and observation windows on the dust collection hood, thereby reducing the overall number of components. The improved design of this embodiment enhances the reliability and ease of maintenance of the equipment and reduces production costs.

[0034] More specifically, the observation window 1 is detachably connected to the dust collection cover 4 by bolts. The observation window assembly is evenly arranged in 8 groups at equal angles around the collector ring axis of the generator body. The observation window 1 is made of transparent or semi-transparent polymer material. Each observation window assembly is provided with at least two square observation holes 2.

[0035] Dust generated by carbon brush wear is confined within a sealed cavity. The size of the square observation hole precisely matches the size of the carbon brush, minimizing dust leakage. To further enhance sealing, a sealing gasket, such as a rubber or silicone gasket, can be added between the bolt and the observation window to improve the sealing effect. To prevent observation windows from obstructing each other, the size and position of each observation window assembly can be adjusted or precisely designed according to the specific generator model. The material, size, and shape of the dust collection hood and observation window assembly can also be adjusted according to actual needs, and are not limited to a specific structure.

[0036] In order to improve the wear resistance and weather resistance of the observation window, a hard coating layer such as an anti-scratch coating or an anti-ultraviolet coating can be coated on the surface of the observation window. In order to further improve the observation effect, a high-molecular material with different transparency or color can be selected as needed, for example, a translucent material is selected to make the observation window, which can reduce the influence of strong light on naked eye observation. The improved observation window assembly structure effectively improves the observation efficiency and reliability of the dust collecting device, and facilitates the operator to monitor the running state of the collector ring and timely find and solve potential problems.

[0037] More specifically, the closed cavity is provided with a dust suction port 3 for absorbing the carbon powder in the dust collecting cover 4.

[0038] The material of the dust suction port is selected to be wear-resistant and corrosion-resistant, such as stainless steel or high-temperature plastic, so as to prolong the service life.

[0039] As shown in Figure 2 More specifically, the closed cavity is provided with a brush holder 5 for supporting the carbon brush, and a base 6 for fixing the brush holder 5.

[0040] The surface of the brush holder is polished by spraying wear-resistant coating or other methods to reduce the adhesion of carbon powder, which can effectively improve the stability of the carbon brush, reduce the splashing of carbon powder, and simplify the replacement and maintenance operation of the carbon brush, thereby improving the overall performance and service life of the dust collecting device. The material of the base is selected to be high-strength, wear-resistant and corrosion-resistant, such as cast aluminum alloy or stainless steel, so as to ensure the corrosion resistance and service life of the base.

[0041] As shown in Figure 3 More specifically, it further includes a dust concentration sensor, a microprocessor and an alarm, the dust concentration sensor is used to detect the dust concentration value in the closed cavity, the microprocessor is used to receive the detection data of the dust concentration sensor, and the alarm is used to receive the output data of the microprocessor to issue an alarm signal.

[0042] In this embodiment, through monitoring and alarming, the system can effectively reduce the harm of high dust concentration in the closed cavity to the operation of the generator, reduce the need for manual monitoring, improve the work efficiency, and reduce the potential operation risk.

[0043] More specifically, it further includes a vibration sensor and a position sensor, the vibration sensor is used to detect the vibration frequency of the carbon brush, and the position sensor is used to detect the position of the carbon brush, and the vibration sensor and the position sensor are electrically connected with the microprocessor.

[0044] Through the vibration frequency monitoring of the carbon brush, the problems such as carbon brush wear, looseness or imbalance can be effectively identified, through the real-time monitoring of the vibration and position of the carbon brush, the system can optimize the operation performance of the motor, ensure that the carbon brush works in the best state, thereby improving the efficiency and service life of the motor, significantly improving the operation safety and reliability of the equipment, and reducing the maintenance cost.

[0045] More specifically, it further comprises a contact resistance sensor for detecting the contact resistance between the carbon brush and the collector ring, and the contact resistance sensor is electrically connected with the microprocessor.

[0046] Periodic monitoring of the contact resistance can help identify potential problems, timely maintenance and replacement, thereby prolonging the service life of the carbon brush and the collector ring, reducing the maintenance cost, and reducing the electrical faults and safety hazards caused by poor contact, ensuring the safe operation of the equipment and protecting the safety of the operators.

[0047] The above is only the preferred embodiment of the present application and is not used to limit the present application, and for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A generator brush holder dust collection device, comprising a generator body, characterized in that: A dust collection hood (4) is fitted around the collector ring of the generator body; The dust collection hood (4) is provided with an observation window assembly, each observation window assembly including an observation window (1) and a square observation hole (2) disposed thereon; The dust collection hood (4) and each observation window assembly together form a sealed cavity, and a carbon brush corresponding to the position of the square observation hole (2) is provided in the sealed cavity.

2. The generator brush holder dust collection device according to claim 1, characterized in that, The observation window (1) is detachably connected to the dust collection cover (4) by bolts.

3. The generator brush holder dust collection device according to claim 2, characterized in that, The observation window assembly is evenly arranged in 8 groups at equal angles around the collector ring axis of the generator body. The observation window (1) is made of transparent or semi-transparent polymer material, and each observation window assembly is provided with at least two square observation holes (2).

4. The generator brush holder dust collection device according to claim 1, characterized in that, The sealed cavity is provided with a dust suction port (3), which is used to absorb the carbon powder in the dust collection hood (4).

5. The generator brush holder dust collection device according to claim 1, characterized in that, A brush holder (5) is provided inside the sealed cavity, which is used to support the carbon brush. A base (6) is provided inside the sealed cavity, which is used to fix the brush holder (5).

6. The generator brush holder dust collection device according to claim 1, characterized in that, It also includes a dust concentration sensor, a microprocessor, and an alarm. The dust concentration sensor is used to detect the dust concentration value in the sealed cavity, the microprocessor is used to receive the detection data from the dust concentration sensor, and the alarm is used to receive the output data from the microprocessor and issue an alarm signal.

7. The generator brush holder dust collection device according to claim 6, characterized in that, It also includes a vibration sensor and a position sensor, the vibration sensor being used to detect the vibration frequency of the carbon brush, and the position sensor being used to detect the position of the carbon brush, the vibration sensor and the position sensor being electrically connected to the microprocessor.

8. The generator brush holder dust collection device according to claim 7, characterized in that, It also includes a contact resistance sensor for detecting the contact resistance between the carbon brush and the slip ring, and the contact resistance sensor is electrically connected to the microprocessor.

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