Device for measuring current of generator carbon brush

Abstract

Disclosed in the present invention is a device for measuring the current of generator carbon brush, comprising: a monitoring mechanism, which comprises a cabinet, a protective door arranged on the cabinet, and an electrical device, a temperature acquisition unit, and current acquisition units that are arranged in the cabinet; pressing mechanisms, each of which comprises through-holes formed on the corresponding current acquisition unit, a pressing portion arranged on the current acquisition unit, pulling portions arranged on the pressing portion, flipping portions arranged on the current acquisition unit, and limiting portions arranged on each flipping portion; and adjustment mechanisms, each of which comprises second slide grooves formed on the corresponding current acquisition unit, sliding rods arranged inside the second slide grooves, follower portions arranged on the sliding rods, a driving portion provided on the current acquisition unit, and an ejection portion provided on the driving portion. By means of configurations of the monitoring mechanism, pressing mechanisms, and adjustment mechanisms, the currents of generator carbon brushes are monitored, and quick installation and removal of plugs and housings by workers are facilitated.

Description

A device for measuring the carbon brush current of a generator Technical Field

[0001] This invention relates to the field of generator carbon brush current measurement technology, and more particularly to a device for measuring generator carbon brush current. Background Technology

[0002] Steam turbine generators are an important component of power systems and are of great significance to the power generation process. Most large steam turbine generator units now use static excitation. Current is introduced into the slip rings through carbon brushes and then into the rotor. The rotor rotates to generate electricity. For large steam turbine generators, the excitation carbon brushes inside the generator are arranged very closely.

[0003] Therefore, interference between the various carbon brushes is also a serious problem. When serious problems occur, it can lead to inaccurate carbon brush current measurement. Precise measurement of carbon brush current is required to minimize the mutual influence between carbon brushes. In addition, the temperature of the slip ring is also very important. However, due to the limitations of operating conditions, it is impossible to monitor it on-site in real time. Moreover, when installing the existing plug, the plug is first inserted into the housing and then the nut is turned to fix it. Since there are too many plugs, the staff needs to turn the nut repeatedly when removing the plug. At the same time, the plug located in the middle position is not convenient to tighten the nut. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the fact that the existing devices for measuring the carbon brush current of generators have problems such as inaccurate carbon brush current measurement due to interference between the individual magnetic carbon brushes, inability to accurately measure the carbon brush current, inability to monitor the temperature of the slip ring in real time, and the need for workers to constantly turn the nuts when removing the plugs due to the large number of plugs, this invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for measuring the carbon brush current of a generator, comprising: a monitoring mechanism, which includes a cabinet, a protective door disposed on the cabinet, and electrical equipment, a temperature acquisition unit, and a current acquisition unit disposed inside the cabinet; a pressing mechanism, including a through hole disposed on the current acquisition unit, a pressing part disposed on the current acquisition unit, a pulling part disposed on the pressing part, a flipping part disposed on the current acquisition unit, and a limiting part disposed on the flipping part; and an adjusting mechanism, including a second slide groove disposed on the current acquisition unit, a slide rod disposed inside the second slide groove, a follower part disposed on the slide rod, a driving part disposed on the current acquisition unit, and an ejection part disposed on the driving part.

[0007] As a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the temperature acquisition unit includes a fixed base disposed inside the cabinet and a temperature probe disposed on the fixed base.

[0008] As a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the current acquisition unit includes a housing disposed on the electrical equipment, an integrated Hall current sensor disposed inside the housing, and a cover plate disposed on the housing.

[0009] In a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the extrusion section includes a movable plate disposed on the cover plate, an extrusion plate disposed on the movable plate, and a groove disposed on the extrusion plate.

[0010] In a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the pulling part includes a base disposed on the movable plate, a ring disposed on the base, and a first spring disposed on the ring.

[0011] In a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the flipping part includes a fixing rod disposed on the housing, a notch and a first sliding groove disposed on the fixing rod, and a flipping rod and a handle disposed on the moving plate.

[0012] In a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the limiting part includes a limiting rod disposed on the flipping rod and a strip-shaped opening disposed on the fixing rod.

[0013] In a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the follower includes a convex block and a second spring disposed on the slide rod, an inclined surface disposed on the convex block, a connecting rod disposed on the convex block, and an insert rod disposed on the extrusion plate.

[0014] In a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the drive unit includes a rotating rod disposed on the cover plate, a lever plate, a collar and a fixing block disposed on the rotating rod, and an arc-shaped through-hole and a rope disposed on the collar.

[0015] As a preferred embodiment of the device for measuring the carbon brush current of a generator according to the present invention, the ejector portion includes an elliptical block disposed on the rotating rod, a cross-section disposed on the elliptical block, a push rod disposed on the cover plate, and an arc-shaped rod disposed on the push rod.

[0016] The beneficial effects of this invention are as follows: By setting up a monitoring mechanism, the current information and slip ring temperature information of each carbon brush can be collected in real time, then transmitted to the field electronics room, and then the relevant signals are transmitted to the DCS screen in the main control room. An alarm is triggered when current imbalance or slip ring temperature is too high, allowing operators to promptly inform maintenance personnel. This enables maintenance personnel to promptly go to the site for handling, preventing accidents and unit outages. Simultaneously, the temperature of the slip ring indirectly indicates the condition of the generator excitation carbon brushes. The pressing mechanism replaces the traditional bolt tightening method, pressing the plug to facilitate quick installation and removal of the plug. The adjustable mechanism allows for different removal methods for the cover plate when the plug is installed on the housing versus when no plug is installed, further facilitating operator operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 is a schematic diagram of the overall structure of the device for measuring the carbon brush current of a generator according to the present invention.

[0019] Figure 2 is a schematic diagram of the housing structure of the device for measuring the carbon brush current of a generator according to the present invention.

[0020] Figure 3 is a top view of the moving plate structure of the device for measuring the carbon brush current of a generator according to the present invention.

[0021] Figure 4 is a schematic diagram of the internal structure of the device housing for measuring the carbon brush current of a generator according to the present invention.

[0022] Figure 5 is an enlarged schematic diagram of the device for measuring the carbon brush current of a generator in Figure 4, shown at point A.

[0023] Figure 6 is a schematic diagram of the fixing rod structure of the device for measuring the carbon brush current of the generator according to the present invention.

[0024] Figure 7 is a schematic diagram of the bottom structure of the cover plate of the device for measuring the carbon brush current of the generator according to the present invention.

[0025] Figure 8 is a schematic diagram of the rotating rod structure of the device for measuring the carbon brush current of a generator according to the present invention.

[0026] Figure 9 is a schematic diagram of the monitoring process for measuring the carbon brush current of a generator according to the present invention. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1

[0032] Referring to Figures 1-9, a device for measuring the carbon brush current of a generator is provided, including a monitoring mechanism 100, which includes a cabinet 101, a protective door 102 disposed on the cabinet 101, and electrical equipment 103, a temperature acquisition unit 104, and a current acquisition unit 105 disposed inside the cabinet 101.

[0033] Furthermore, the temperature acquisition unit 104 includes a mounting base 104a disposed inside the cabinet 101, and a temperature probe 104b disposed on the mounting base 104a.

[0034] The mounting base 104a is fixedly installed on the inner wall of the cabinet 101, and the mounting base 104a is adjacent to the top surface inside the cabinet 101. The temperature probe 104b has a built-in temperature acquisition module.

[0035] Specifically, the temperature inside the cabinet 101 is monitored in real time using temperature probe 104b.

[0036] Furthermore, the current acquisition unit 105 includes a housing 105a disposed on the electrical equipment 103, an integrated Hall current sensor 105b disposed inside the housing 105a, and a cover plate 105c disposed on the housing 105a.

[0037] The housing 105a is placed on top of the electrical equipment 103.

[0038] Specifically, the staff connects the electrical equipment 103 to the integrated Hall current sensor 105b via wires. The integrated Hall current sensor 105b has a built-in current acquisition module.

[0039] Specifically, the working principle of the integrated Hall current sensor 105b is that the Hall voltage changes with the magnetic field strength. When the carbon brush current is larger, the magnetic field is stronger, the voltage is higher, and the Hall voltage is higher; when the carbon brush current is smaller, the magnetic field is weaker, the voltage is lower, and the Hall voltage value is very small. During detection, the measured current inside the sensor generates magnetic flux, which balances with the magnetic field generated by the secondary coil current, keeping the overall magnetic flux zero. Then, the signal is conditioned to the range that the CPU can acquire through the amplification and filtering circuit. The analog signal is then converted into a numerical signal by the A / D converter inside the CPU. It has the following advantages:

[0040] 1. A through-core Hall effect sensor is used to measure the brush current. The brush current passes through the Hall element, and installation is convenient, requiring only the addition of a square-sized element, thus preserving the original shape of the brush holder for storing carbon brushes to the greatest extent. Furthermore, it does not affect unit operation, exhibits low temperature drift, and has good linearity.

[0041] 2. The integrated Hall current sensor 105b detects the current signal, converts it to an RS485 signal via AD conversion, and transmits the signal to the local data acquisition unit through a pair of RS485 communication lines and a pair of power lines, minimizing electromagnetic interference from field equipment and resulting in more accurate measurement data.

[0042] 3. The addition of a current sensor does not affect the replacement of carbon brushes. When replacing them, simply rotate the connector to separate the corresponding male connector from the female connector. This will not affect other operating carbon brushes, and the overall structure of the brush holder will not change, ensuring the safe and reliable operation of the unit.

[0043] 4. All carbon brushes are equipped with quick-connect couplings, which are divided into positive and negative terminals, using a male and female connector interface. The positive terminal has 12 carbon brushes per circuit, and the negative terminal has 12 carbon brushes per circuit, ensuring no interference between the positive and negative terminals. Furthermore, the female connectors of the quick-connect couplings are connected in parallel, so a problem in one will not affect the others. Before generator overhaul and disassembly, only the corresponding male connector needs to be disconnected; the male connectors and sensors are removed with the soundproof enclosure, without affecting the generator overhaul.

[0044] 5. It is also equipped with an alarm function. When the carbon brush temperature exceeds 80 degrees, a mild alarm signal is issued; when the carbon brush temperature exceeds 100 degrees, a moderate alarm signal is issued, which serves as a monitoring function for operators so that maintenance personnel can be notified in a timely manner to handle the situation.

[0045] Next, let's introduce the principle of the autonomously movable slip ring infrared thermometry: The infrared thermometry device consists of an optical system, a photoelectric detector, a signal amplifier, signal processing, and display output. The optical system collects the infrared radiation energy of the target within its field of view. The size of the field of view is determined by the optical components and position of the thermometer. It takes the maximum value measured in one horizontal scan and transmits it back. The infrared energy is focused on the photoelectric detector and converted into a corresponding electrical signal. This signal is amplified and processed by the signal processing circuit, and after being corrected according to the instrument's internal algorithm and target emissivity, it is converted into the temperature value of the measured target. This system is symmetrically arranged and can scan the temperature of the entire slip ring at any time. One slip ring measures the positive electrode, and the other measures the negative electrode. Since the slip ring rotates with the rotor, it will collect the maximum temperature of one revolution of the rotor and upload it to the SCM-PD monitoring box. At the same time, the alarm value is set to 120 degrees Celsius. When the temperature exceeds the set value, an alarm message is sent to the main control panel.

[0046] The cover plate 105c is located on top of the housing 105a.

[0047] Operation process: Data collected by the sensor and temperature probe 104b is transmitted to the host unit for processing; the background analysis and diagnostic unit performs online diagnostic analysis on the real-time collected current, temperature, and slip ring data, and issues an alarm signal when preset values ​​are reached. The generator excitation carbon brush current and slip ring temperature online monitoring system consists of a current acquisition module, a temperature acquisition module, and an SCM-PD host unit. After the collected data is summarized, it is transmitted to the background expert diagnostic analysis system via computer cable.

[0048] Example 2

[0049] Referring to Figures 2-7, this embodiment differs from the first embodiment in that: the extrusion mechanism 200 includes a through hole 201 provided on the current acquisition unit 105, an extrusion part 202 provided on the current acquisition unit 105, a pulling part 203 provided on the extrusion part 202, a flipping part 204 provided on the current acquisition unit 105, and a limiting part 205 provided on the flipping part 204.

[0050] The through hole 201 is provided on the side wall of the housing 105a, and the through hole 201 is located near the edge of the housing 105a.

[0051] Furthermore, the extrusion section 202 includes a movable plate 202a disposed on the cover plate 105c, an extrusion plate 202b disposed on the movable plate 202a, and a groove 202c disposed on the extrusion plate 202b.

[0052] The movable plate 202a is placed on the cover plate 105c.

[0053] The extrusion plate 202b is mounted on the side wall of the movable plate 202a, and the extrusion plate 202b and the movable plate 202a are perpendicular to each other.

[0054] The bottom of the extrusion plate 202b has multiple grooves 202c.

[0055] Specifically, when the plug of the wire is inserted into the housing 105a, one side of the extrusion plate 202b contacts the tail of the plug, the wire is located inside the groove 202c, and the moving plate 202a can drive the extrusion plate 202b to extrude the plug, so that the plug is firmly fixed to the side wall of the housing 105a.

[0056] Specifically, both the extrusion plate 202b and the movable plate 202a are made of transparent material, making it convenient for staff to view the plug and to unplug it.

[0057] Furthermore, the pulling part 203 includes a base 203a disposed on the movable plate 202a, a ring 203b disposed on the base 203a, and a first spring 203c disposed on the ring 203b.

[0058] Among them, the top mounting base 203a of the movable plate 202a.

[0059] Among them, the ring 203b is mounted on the base 203a.

[0060] Specifically, the ring 203b can be flipped on the base 203a.

[0061] The first spring 203c is fixedly connected to the ring 203b.

[0062] Specifically, there are two movable plates 202a, both of which are mounted on the cover plate 105c, and the two ends of the first spring 203c are respectively connected to the rings 203b.

[0063] Furthermore, the flipping part 204 includes a fixing rod 204a disposed on the housing 105a, a notch 204b and a first groove 204c disposed on the fixing rod 204a, and a flipping rod 204d and a handle 204e disposed on the moving plate 202a.

[0064] The fixing rod 204a is fixedly installed at the middle position of the top of the housing 105a.

[0065] The first groove 204c is formed along the length of the fixed rod 204a.

[0066] The top of the fixing rod 204a has a notch 204b, which is connected to the first sliding groove 204c.

[0067] Specifically, there are two notches 204b, which are located at both ends of the fixing rod 204a.

[0068] The two movable plates 202a are connected on one side by a flipping rod 204d.

[0069] Specifically, the flipping rod 204d is located inside the first slide groove 204c.

[0070] Furthermore, the limiting part 205 includes a limiting rod 205a disposed on the flipping rod 204d, and a strip opening 205b disposed on the fixing rod 204a.

[0071] The limiting rod 205a is installed on the side wall of the flipping rod 204d, and both ends of the limiting rod 205a extend into the interior of the strip opening 205b.

[0072] Specifically, the slot 205b is provided on both sides of the fixed rod 204a, and the slot 205b is connected to the first groove 204c.

[0073] Operation process: Before the operator inserts the plug into the housing 105a, the moving plate 202a drives the pressing plate 202b to flip upwards. At this time, the moving plate 202a is perpendicular to the top of the cover plate 105c, the first spring 203c is in the contracted state, and the two moving plates 202a are parallel to each other. The moving plate 202a drives the flipping rod 204d to be perpendicular to the cover plate 105c. The flipping rod 204d drives the limiting rod 205a to move to the outermost edge of the slot 205b. At the same time, the flipping rod 204d is located inside the recess 204b. When the operator connects the electrical device 103 to the integrated Hall current sensor 105b via a wire, the operator inserts the wire with the plug into the housing 105a, so that the integrated Hall current sensor 105b... When connected to electrical equipment 103, the position of the plug needs to be fixed. The operator moves the movable plate 202a to both sides. The movable plate 202a drives the pressing plate 202b to flip together. When the movable plate 202a flips, it drives the flipping rod 204d to contact the cover plate 105c. At this time, the flipping rod 204d is no longer restricted by the notch 204b. Under the action of the first spring 203c, the first spring 203c drives the two movable plates 202a to move closer to each other. The two movable plates 202a drive the two flipping rods 204d to move closer to each other. The flipping rods 204d drive the limiting rod 205a to move inside the strip opening 205b. The two movable plates 202a drive the two pressing plates 202b to press the end of the plug to prevent the plug from separating from the housing 105a.

[0074] Example 3

[0075] Referring to Figures 2-8, this embodiment differs from the above embodiments in that: the adjustment mechanism 300 includes a second slide groove 301 disposed on the current acquisition unit 105, a slide rod 302 disposed inside the second slide groove 301, a follower part 303 disposed on the slide rod 302, a drive part 304 disposed on the current acquisition unit 105, and an ejector part 305 disposed on the drive part 304.

[0076] The bottom of the cover plate 105c is provided with a second sliding groove 301.

[0077] The two ends of the slide rod 302 are respectively connected to the inner wall of the second slide groove 301.

[0078] Furthermore, the follower 303 includes a convex block 303a and a second spring 303b disposed on the slide bar 302, an inclined surface 303c disposed on the convex block 303a, a connecting rod 303d disposed on the convex block 303a, and an insert rod 303e disposed on the extrusion plate 202b.

[0079] The top of the convex block 303a is located inside the second slide groove 301, and the convex block 303a is sleeved on the side wall of the slide rod 302.

[0080] The second spring 303b is sleeved on the slide rod 302.

[0081] Specifically, there are two second springs 303b, which are located on both sides of the convex block 303a.

[0082] One end of the convex block 303a has an inclined surface 303c.

[0083] Specifically, when the operator presses the cover plate 105c, the cover plate 105c causes the convex block 303a to descend. When the inner wall of the housing 105a contacts the inclined surface 303c, the inner wall of the housing 105a presses the convex block 303a, and the convex block 303a causes the second spring 303b to contract. When the convex block 303a descends to the through hole 201, the second spring 303b returns to its original position and causes the convex block 303a to insert into the through hole 201, so that the cover plate 105c and the housing 105a are locked together.

[0084] Among them, the end of the convex block 303a away from the inclined surface 303c is connected to the docking rod 303d.

[0085] Specifically, the connecting rod 303d can drive the two convex blocks 303a to move together.

[0086] There are two insertion rods 303e, and two insertion rods 303e are installed on the side of the extrusion plate 202b adjacent to the housing 105a.

[0087] Specifically, when the extrusion plate 202b contacts the plug, the insertion rod 303e is directly opposite the through hole 201.

[0088] Furthermore, the drive unit 304 includes a rotating rod 304a disposed on the cover plate 105c, a lever plate 304b, a collar 304c and a fixing block 304d disposed on the rotating rod 304a, and an arc-shaped through-hole 304e and a rope 304f disposed on the collar 304c.

[0089] Among them, the rotating rod 304a is located at the center of the cover plate 105c.

[0090] Among them, the lever 304b is located on the top of the cover plate 105c, and there are two levers 304b, which are evenly distributed on the side wall of the rotating rod 304a.

[0091] Among them, the collar 304c is located on the side wall of the rotating rod 304a, and the sleeve is located at the bottom of the cover plate 105c.

[0092] The fixing block 304d is installed on the side wall of the rotating rod 304a.

[0093] The arc-shaped through-hole 304e is located on the side wall of the collar 304c, and the fixing block 304d is located inside the annular through-hole.

[0094] One end of the rope 304f is connected to the connecting rod 303d, and the other end of the rope 304f is connected to the fixing block 304d.

[0095] Specifically, when the operator rotates the lever 304b clockwise, the lever 304b can drive the rotating rod 304a to rotate, the rotating rod 304a drives the fixed block 304d to rotate, the fixed block 304d drives the rope 304f, so that the rope 304f can pull the connecting rod 303d.

[0096] Furthermore, the ejector portion 305 includes an elliptical block 305a disposed on the rotating rod 304a, a cross-section 305b disposed on the elliptical block 305a, a push rod 305c disposed on the cover plate 105c, and an arc-shaped rod 305d disposed on the push rod 305c.

[0097] Elliptical block 305a is fixedly sleeved on the side wall of rotating rod 304a, and elliptical block 305a is located on top of cover plate 105c.

[0098] Among them, the two farthest ends of the elliptical block 305a are provided with tangent surfaces 305b.

[0099] There are two arc-shaped rods 305d, with the two arcs located on both sides of the rotating rod 304a.

[0100] The two ends of the arc-shaped rod 305d are respectively connected to the push rod 305c, and the end of the push rod 305c away from the arc-shaped rod 305d extends into the interior of the strip-shaped opening 205b.

[0101] Specifically, when the rotating rod 304a rotates 90°, it drives the elliptical block 305a to rotate. When the cut surface 305b contacts the moving plate 202a, the two moving plates 202a drive the two arc-shaped rods 305d to move away from each other. The arc-shaped rods 305d drive the two push rods 305c to push the flipping rod 204d to move. The flipping rod 204d drives the two moving plates 202a to move away from each other. The moving plate 202a drives the pressing plate 202b, causing the pressing plate 202b to separate from the plug. This makes it convenient for the staff to turn the plug.

[0102] Operating Procedure: When the operator needs to inspect the integrated Hall current sensor 105b inside the housing 105a, the cover plate 105c needs to be separated from the housing 105a. When the plug is not separated from the housing 105a, the operator rotates the lever 304b clockwise. The lever 304b causes the rotating rod 304a to rotate, which in turn drives the fixing block 304d. The fixing block 304d drives the rope 304f, which pulls the two connecting rods 303d closer together. The movable convex block 303a causes the second spring 303b to contract and disengage from the inside of the through hole 201. At the same time, the rotating rod 304a drives the elliptical block 305a to rotate, and the elliptical block 305a drives the two arc-shaped rods 305d to move away from each other, so that the extrusion plate 202b separates from the plug, preventing the extrusion plate 202b from pulling the plug upward during the rising process, which would cause damage to the plug. At this time, the staff can lift the cover plate 105c upward to separate it from the housing 105a, which is convenient for the staff to carry out maintenance.

[0103] When the worker only needs to remove the plug from the housing 105a, the worker pushes the dial plate 304b counterclockwise. The dial plate 304b drives the rotating rod 304a to rotate 90°. The rotating rod 304a drives the fixing block 304d, which moves inside the arc-shaped through-hole 304e. The fixing block 304d cannot drive the collar 304c to rotate. The rotating rod 304a drives the elliptical block 305a to squeeze the arc-shaped rod 305d, causing the squeezing plate 202b to separate from the plug by a certain distance. At this time, the worker can pull the plug out of the housing 105a. After the plug is pulled out, the dial plate 304b is flipped, and the first spring 203c resumes driving the ring 203b. The ring 203b drives the base 203a, which drives the moving plate 202a. The moving plate 202a drives the squeezing plate 202b to squeeze the remaining plug again.

[0104] When there is no plug on the housing 105a, to facilitate the disassembly of the cover 105c, it is not necessary to rotate the lever 304b. The operator only needs to pry the handle 204e to both sides. The handle 204e drives the moving plate 202a to flip, the moving plate 202a drives the pressing plate 202b to flip, and the pressing plate 202b drives the insert rod 303e to flip. When the moving plate 202a flips 90°, the flipping rod 204d is no longer restricted by the notch 204b, and the first spring 2... 03c retracts, driving the ring 203b, which in turn drives the base 203a. The base 203a then drives the two moving plates 202a to move closer together. The two moving plates 202a drive the pressing plate 202b, which in turn drives the insert rod 303e to be inserted into the through hole 201. The insert rod 303e presses the convex block 303a, which in turn drives the second spring 303b to retract. At this point, the operator can pull the cover plate 105c upwards to separate it from the housing 105a.

[0105] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0106] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0107] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0108] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for measuring the carbon brush current of a generator, characterized in that: include, The monitoring unit (100) includes a cabinet (101), a protective door (102) installed on the cabinet (101), and electrical equipment (103), a temperature acquisition unit (104), and a current acquisition unit (105) installed inside the cabinet (101). The extrusion mechanism (200) includes a through hole (201) disposed on the current acquisition unit (105), an extrusion part (202) disposed on the current acquisition unit (105), a pulling part (203) disposed on the extrusion part (202), a flipping part (204) disposed on the current acquisition unit (105), and a limiting part (205) disposed on the flipping part (204); The adjustment mechanism (300) includes a second slide groove (301) disposed on the current acquisition unit (105), a slide rod (302) disposed inside the second slide groove (301), a follower part (303) disposed on the slide rod (302), a drive part (304) disposed on the current acquisition unit (105), and an ejector part (305) disposed on the drive part (304).

2. The device for measuring generator carbon brush current as described in claim 1, characterized in that: The temperature acquisition unit (104) includes a fixed base (104a) disposed inside the cabinet (101) and a temperature probe (104b) disposed on the fixed base (104a).

3. The device for measuring generator carbon brush current as described in claim 1, characterized in that: The current acquisition unit (105) includes a housing (105a) disposed on the electrical equipment (103), an integrated Hall current sensor (105b) disposed inside the housing (105a), and a cover plate (105c) disposed on the housing (105a).

4. The device for measuring generator carbon brush current as described in claim 3, characterized in that: The extrusion section (202) includes a movable plate (202a) disposed on the cover plate (105c), an extrusion plate (202b) disposed on the movable plate (202a), and a groove (202c) disposed on the extrusion plate (202b).

5. The device for measuring generator carbon brush current as described in claim 4, characterized in that: The pulling part (203) includes a base (203a) disposed on the movable plate (202a), a ring (203b) disposed on the base (203a), and a first spring (203c) disposed on the ring (203b).

6. The device for measuring generator carbon brush current as described in claim 4, characterized in that: The flipping part (204) includes a fixing rod (204a) disposed on the housing (105a), a notch (204b) and a first sliding groove (204c) disposed on the fixing rod (204a), and a flipping rod (204d) and a handle (204e) disposed on the moving plate (202a).

7. The device for measuring generator carbon brush current as described in claim 6, characterized in that: The limiting part (205) includes a limiting rod (205a) disposed on the flipping rod (204d) and a strip opening (205b) disposed on the fixing rod (204a).

8. The device for measuring generator carbon brush current as described in claim 1, characterized in that: The follower (303) includes a convex block (303a) and a second spring (303b) disposed on the slide bar (302), an inclined surface (303c) disposed on the convex block (303a), a connecting rod (303d) disposed on the convex block (303a), and an insert rod (303e) disposed on the extrusion plate (202b).

9. The device for measuring generator carbon brush current as described in claim 4, characterized in that: The drive unit (304) includes a rotating rod (304a) disposed on the cover plate (105c), a lever plate (304b), a collar (304c) and a fixing block (304d) disposed on the rotating rod (304a), and an arc-shaped through-hole (304e) and a rope (304f) disposed on the collar (304c).

10. The device for measuring generator carbon brush current as described in claim 9, characterized in that: The ejector portion (305) includes an elliptical block (305a) disposed on the rotating rod (304a), a cross-section (305b) disposed on the elliptical block (305a), a push rod (305c) disposed on the cover plate (105c), and an arc-shaped rod (305d) disposed on the push rod (305c).

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