Rotor voltage measuring equipment for brushless excitation generator

Abstract

The utility model relates to a brushless excitation generator rotor voltage measuring device comprising a housing, the housing is provided with two carbon brushes, the carbon brushes are arranged in the carbon brushes, the carbon brushes are provided with a limiting mechanism, the limiting mechanism comprises two connecting columns arranged in the carbon brushes, and the connecting columns are connected with the carbon brushes. The front faces of the two connecting columns are fixedly connected with a connecting plate, the interiors of the opposite sides of the two connecting columns are fixedly connected with telescopic rods, and one sides of the telescopic rods are fixedly connected with clamping blocks. According to the brushless excitation generator rotor voltage measuring equipment, through arrangement of the limiting mechanism, when the brushless excitation generator rotor voltage is measured through the equipment, a carbon brush is placed in a mounting groove formed in the shell, then a connecting column is placed in the mounting groove, and a clamping block is connected with a clamping groove formed in the shell, so that the carbon brush is clamped in the mounting groove; and the position of the carbon brush is limited through the two limiting plates, so that the mounting stability of the carbon brush is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of generator detection equipment, in particular to a brushless excitation generator rotor voltage measuring device. Background Art

[0002] The principle of the brushless excitation generator is to use the principle of electromagnetic induction to generate electrical energy through a rotating magnetic field. Its basic components include a rotor, a stator, permanent magnets and electronic components, among which the rotor and stator are the core parts of the generator, the permanent magnets are used to generate magnetic fields, and the electronic components are used to control and adjust the output voltage and current of the generator. The generator set has been in operation for one year. During the shutdown and maintenance, it was found that the collector ring of the generator rotor voltage measuring device was seriously damaged. The unevenness of the collector ring can be clearly felt by touching it with hands. The temperature of the collector ring has been high during high-load operation. Therefore, it is necessary to measure the brushless excitation generator through voltage measuring equipment.

[0003] For example, announcement number CN214255967U proposes a brushless excitation generator rotor voltage measuring device, including a shell, which is arranged above the outer surface of the rotor; a mounting groove, which is arranged in the shell and passes through the upper and lower ends of the shell; a carbon brush, which is placed in the mounting groove and has a lower end surface in contact with the outer surface of the rotor; a clamping device, which is arranged in the mounting groove and presses on the upper end surface of the carbon brush. However, during use, the utility model fixes the carbon brush by an elastic steel plate and an elastic steel sheet. During the fixing process, if the placement position of the elastic steel plate is offset, the elastic steel plate will be detached, causing the carbon brush to loosen, resulting in poor fixing effect of the carbon brush, affecting the measurement of the brushless excitation generator rotor voltage. Therefore, a brushless excitation generator rotor voltage measuring device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a brushless excitation generator rotor voltage measuring device with the advantages of fixation and stability. It solves the problem that the elastic steel plate will be detached due to the offset of the placement position of the elastic steel plate, resulting in loose carbon brushes, resulting in poor fixing effect of the carbon brushes and affecting the measurement of the rotor voltage of the brushless excitation generator.

[0005] To achieve the above object, the utility model provides the following technical solution: a brushless excitation generator rotor voltage measuring device, comprising a housing, two carbon brushes are provided on the housing, a carbon brush is provided inside the carbon brush, and a limiting mechanism is provided on the carbon brush;

[0006] The limiting mechanism includes two connecting columns located inside the carbon brush, the front faces of the two connecting columns are fixedly connected to connecting plates, the insides of opposite sides of the two connecting columns are fixedly connected to telescopic rods, one side of the telescopic rod is fixedly connected to a clamping block, the outer side of the telescopic rod is sleeved with a spring, the outer side of the telescopic rod is slidably connected to a spring, the front side of the spring is fixedly connected to a clamping block, the inside of the connecting plate is rotatably connected to a second threaded rod, the outer side of the second threaded rod is fixedly connected to a gear, the outer side of the second threaded rod is threadedly connected to a push plate, the inside of the connecting column is fixedly connected to a limiting rod, and the opposite sides of the two connecting columns are fixedly connected to limiting plates, and the limiting mechanism also includes an adjusting component.

[0007] Furthermore, the adjustment assembly includes a first threaded rod rotatably connected to the front side of the connecting plate, the outer side of the first threaded rod is threadedly connected to a movable plate, and the back side of the movable plate is fixedly connected to two toothed plates.

[0008] Furthermore, a sliding groove is provided on the inner top wall of the connecting column, and a sliding block slidably connected to the sliding groove is fixedly connected to the top of the tooth plate.

[0009] Furthermore, a first threaded through hole threadedly connected to the first threaded rod is provided inside the movable plate, and a second threaded through hole threadedly connected to the second threaded rod is provided inside the push plate, and the threads inside the two push plates are in opposite directions.

[0010] Furthermore, a plurality of card slots matching the size of the card block are provided inside the shell, and the back side of the card block is an inclined surface.

[0011] Furthermore, one end of the spring is fixedly connected to an inner wall of one side of the connecting column, and the other end of the spring is fixedly connected to a side of the clamping block close to the telescopic rod.

[0012] Furthermore, a limiting through hole matching the size of the limiting rod is provided inside the push plate, and the push plate abuts against the clamping block.

[0013] Furthermore, one end of the tooth plate passes through the connecting plate and extends to the interior of the connecting column, and the tooth plate and the gear are meshed with each other.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The brushless excitation generator rotor voltage measuring device is provided with a limiting mechanism. When the brushless excitation generator rotor voltage is measured through the device, the carbon brush is placed in a mounting groove provided on a shell, and then a connecting column is placed in the mounting groove. The connecting column is fixed by connecting a clamping block with the clamping groove provided on the shell. The position of the carbon brush is limited by two limiting plates to ensure the stability of the installation of the carbon brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a bottom sectional view of the limiting mechanism structure of the utility model.

[0018] In the figure: 1 housing, 2 mounting groove, 3 carbon brush, 4 connecting plate, 5 clamping block, 6 movable plate, 7 first threaded rod, 8 limiting rod, 9 connecting column, 10 limiting plate, 11 telescopic rod, 12 spring, 13 second threaded rod, 14 push plate, 15 toothed plate, 16 gear, 17 clamping groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 In this embodiment, a brushless excitation generator rotor voltage measuring device includes a housing 1, two carbon brushes 3 are provided on the housing 1, a carbon brush 3 is provided inside the carbon brush 3, and a limiting mechanism is provided on the carbon brush 3.

[0021] The limiting mechanism includes two connecting columns 9 located inside the carbon brush 3, the front faces of the two connecting columns 9 are fixedly connected to connecting plates 4, the insides of the opposite sides of the two connecting columns 9 are fixedly connected to telescopic rods 11, one side of the telescopic rod 11 is fixedly connected to a block 5, the outer side of the telescopic rod 11 is sleeved with a spring 12, the outer side of the telescopic rod 11 is slidably connected to the spring 12, the front side of the spring 12 is fixedly connected to the block 5, one end of the spring 12 is fixedly connected to an inner wall of one side of the connecting column 9, and the other end of the spring 12 is fixedly connected to a side of the block 5 close to the telescopic rod 11, a plurality of card grooves 17 matching the size of the block 5 are provided inside the housing 1, the back side of the block 5 is an inclined surface, a slide groove is provided on the inner top wall of the connecting column 9, a slider slidably connected to the slide groove is fixedly connected to the top of the tooth plate 15, a second threaded rod 13 is rotatably connected to the inside of the connecting plate 4, and a gear 16 is fixedly connected to the outer side of the second threaded rod 13.

[0022] See also Figure 1-2The outer side of the second threaded rod 13 is threadedly connected to a push plate 14, and a second threaded through hole threadedly connected to the second threaded rod 13 is opened inside the push plate 14. The threads inside the two push plates 14 are in opposite directions. The interior of the connecting column 9 is fixedly connected to the limit rod 8, and a limit through hole matching the size of the limit rod 8 is opened inside the push plate 14. The push plate 14 abuts against the block 5, and the two connecting columns 9 are fixedly connected to the limiting plate 10 on the opposite sides. The limiting mechanism also includes an adjusting component, which includes a first threaded rod 7 rotatably connected to the front of the connecting plate 4, and the outer side of the first threaded rod 7 is threadedly connected to a movable plate 6. A first threaded through hole threadedly connected to the first threaded rod 7 is opened inside the movable plate 6. The back of the movable plate 6 is fixedly connected to two tooth plates 15, one end of the tooth plate 15 passes through the connecting plate 4 and extends to the interior of the connecting column 9, and the tooth plate 15 and the gear 16 are meshed with each other.

[0023] Among them, the carbon brush 3 is provided with a wiring terminal, and the measured data can be transmitted to the mobile terminal for data analysis by connecting the wire to complete the process of measuring the motor rotor voltage. By rotating the first threaded rod 7 in the opposite direction, the push plate 14 no longer squeezes the block 5, and the tension of the spring 12 drives the block 5 to retract into the inside of the connecting column 9, which is convenient for disassembly of the limiting mechanism and convenient for the user to replace the carbon brush 3.

[0024] It should be noted that, by setting up a limiting mechanism, when the rotor voltage of the brushless excitation generator is measured by the device, the carbon brush 3 can be placed in the mounting groove 2 opened on the shell 1, and then the connecting column 9 can be placed in the mounting groove 2, and the block 5 is connected to the slot 17 opened on the shell 1 to fix the connecting column 9, and the position of the carbon brush 3 is limited by two limiting plates 10 to ensure the stability of the installation of the carbon brush 3.

[0025] The working principle of the above embodiment is:

[0026] The brushless excitation generator rotor voltage measuring device, when measuring the brushless excitation generator rotor voltage through the device, fix the housing 1 on the motor housing, and then when measuring the motor rotor, put the carbon brush 3 into the installation groove 2 on the housing 1, and then put the connecting column 9 in the installation groove 2, so that the two connecting columns 9 are respectively located on both sides of the carbon brush 3, and then by rotating the first threaded rod 7, the toothed plate 15 at the bottom of the movable plate 6 is driven to move downward in the slide groove through the slider, so that the gear 16 meshed with the toothed plate 15 is rotated through the second threaded rod 13 The limit rod 8 limits the push plate 14, drives the push plate 14 to move and squeeze the card block 5, pushes the card block 5 to the outside of the connecting column 9, connects the card block 5 with the card slot 17 provided on the shell 1, limits and fixes the connecting column 9, and the limiting plate 10 installed on the connecting column 9 squeezes and limits the front of the carbon brush 3 to keep the carbon brush 3 stable. The carbon brush 3 is provided with a wiring terminal. By connecting the wire, the measured data can be transmitted to the mobile terminal for data analysis, thereby completing the process of measuring the motor rotor voltage, which is convenient for users to use.

[0027] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brushless excitation generator rotor voltage measuring device, comprising a housing (1), characterized in that: The housing (1) is provided with two carbon brushes (3), the carbon brush (3) is arranged inside the carbon brush (3), and the carbon brush (3) is provided with a limiting mechanism; The limiting mechanism comprises two connecting columns (9) located inside the carbon brush (3), the front faces of the two connecting columns (9) being fixedly connected to connecting plates (4), the interiors of opposite sides of the two connecting columns (9) being fixedly connected to telescopic rods (11), one side of the telescopic rod (11) being fixedly connected to a clamping block (5), the outer side of the telescopic rod (11) being sleeved with a spring (12), the outer side of the telescopic rod (11) being slidably connected to the spring (12), the front face of the spring (12) being fixedly connected to a clamping block (5), the interior of the connecting plate (4) being rotatably connected to a second threaded rod (13), the outer side of the second threaded rod (13) being fixedly connected to a gear (16), the outer side of the second threaded rod (13) being threadedly connected to a push plate (14), the interior of the connecting column (9) being fixedly connected to a limiting rod (8), the opposite sides of the two connecting columns (9) being fixedly connected to a limiting plate (10), and the limiting mechanism further comprises an adjustment component.

2. A brushless excitation generator rotor voltage measuring device according to claim 1, characterized in that: The adjustment assembly comprises a first threaded rod (7) rotatably connected to the front of the connecting plate (4); the outer side of the first threaded rod (7) is threadedly connected to a movable plate (6); and the back side of the movable plate (6) is fixedly connected to two toothed plates (15).

3. A brushless excitation generator rotor voltage measuring device according to claim 2, characterized in that: The inner top wall of the connecting column (9) is provided with a sliding groove, and the top of the tooth plate (15) is fixedly connected with a sliding block which is slidably connected with the sliding groove.

4. A brushless excitation generator rotor voltage measuring device according to claim 2, characterized in that: The movable plate (6) has a first threaded through hole threadedly connected to the first threaded rod (7) inside, and the push plate (14) has a second threaded through hole threadedly connected to the second threaded rod (13) inside. The threads inside the two push plates (14) are in opposite directions.

5. The brushless excitation generator rotor voltage measuring device according to claim 1, characterized in that: A plurality of card slots (17) matching the size of the card block (5) are provided inside the housing (1), and the back side of the card block (5) is an inclined surface.

6. The brushless excitation generator rotor voltage measuring device according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to an inner wall of one side of the connecting column (9), and the other end of the spring (12) is fixedly connected to a side of the clamping block (5) close to the telescopic rod (11).

7. The brushless excitation generator rotor voltage measuring device according to claim 1, characterized in that: A limiting through hole matching the size of the limiting rod (8) is provided inside the push plate (14), and the push plate (14) abuts against the clamping block (5).

8. The brushless excitation generator rotor voltage measuring device according to claim 2, characterized in that: One end of the tooth plate (15) passes through the connecting plate (4) and extends to the inside of the connecting column (9), and the tooth plate (15) and the gear (16) are meshed with each other.

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