A wound rotor motor

Abstract

The application relates to a winding motor which comprises a motor body, a base, a brush rod seat support and a collector ring assembly structure, the collector ring assembly structure is fixed to the motor body through the brush rod seat support, the brush rod seat support is obliquely connected to the motor body, and a stop opening matching structure is arranged at the connection position of the brush rod seat support and the base of the motor body. The application applies the design of the external collector ring assembly structure, the brush rod seat support and the base are matched through the stop opening, so that the collector ring can be disassembled and assembled in the assembly process, the position of the collector ring and the brush is adjusted, and no matter whether the parts of the collector ring assembly structure are installed, maintained or replaced, the winding motor does not need to be disassembled, operation can be conducted only at the collector ring assembly structure, the installation and maintenance time is saved, the installation man-hours and manpower are saved, and through the arrangement of the brush rod seat support, the brush rod seat support only needs to be fixed to the base, and the installation convenience is improved.

Description

Technical Field

[0001] This application relates to the field of external devices for wound motors, and more particularly to a wound motor. Background Technology

[0002] With the development of technology, wound-rotor motors have been applied in specific fields, such as metallurgy and water conservancy; and in industries with harsh environments, such as mining, steel, and cement, where they can effectively improve the safety and reliability of the motors. With continuous technological advancements, external collector wound-rotor motors are expected to achieve further development in terms of improved efficiency, reduced costs, and optimized control performance. At the same time, they also have great potential for integration with intelligent control systems, enabling more precise speed regulation, protection, and fault diagnosis functions to adapt to the diverse needs of different industrial scenarios.

[0003] As the center height increases, the external slip ring grows larger and larger. When under stress, the slip ring behaves similarly to a cantilever beam, with one end (the end near the base plate) relatively fixed and the other end (the end of the slip ring) in a free state. Therefore, the slip ring will sink. Existing technology uses a support plate that extends from the motor base plate to hold the slip ring in place. However, this mechanism is very difficult to install and requires coordination between different work sections.

[0004] Therefore, how to shorten the installation time for workers and improve the ease of installation is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] This application provides a wound-rotor motor that effectively secures the slip ring while reducing installation time for workers.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This application provides a wound-rotor motor, including a motor body, a base, a brush rod holder bracket, and a slip ring assembly structure. The slip ring assembly structure is fixed to the base of the motor body via the brush rod holder bracket. The brush rod holder bracket is inclinedly connected to the base, and a stop fit structure is provided at the connection between the brush rod holder bracket and the base of the motor body.

[0008] Optionally, in the above-mentioned wound motor, the stop fit structure includes a stop boss provided in one of the base or the brush rod holder bracket, and a stop groove provided in the other of the brush rod holder bracket or the base.

[0009] The shape of the stop boss is cylindrical, square or trapezoidal, and the shape of the stop groove is adapted to the shape of the stop boss.

[0010] Optionally, in the above-mentioned wound motor, the brush rod holder bracket includes a first connecting rod and a second connecting rod. The first end of the first connecting rod is connected to the base and the second end is connected to the slip ring assembly structure. The first end of the second connecting rod is connected to the base and the second end is connected to the slip ring assembly structure.

[0011] The tilt angle of the first connecting rod and the second connecting rod is 15°-30°.

[0012] Optionally, in the above-mentioned wound motor, the slip ring assembly structure is provided with louvers for ventilation, the louver blades have an inclination angle of 30°-60°, and the blades are made of anti-static material.

[0013] Optionally, in the above-mentioned wound motor, the first connecting rod includes a first connecting surface, the second connecting rod includes a second connecting surface, both the first connecting surface and the second connecting surface are in contact with the base and are fixedly connected to the base by bolts.

[0014] Optionally, in the above-mentioned wound motor, the bolt surface has an anti-corrosion coating, which is a zinc-chromium coating with a thickness of 5-10 μm.

[0015] Optionally, the above-mentioned wound motor also includes a seal, which is disposed between the stop boss and the stop groove.

[0016] Optionally, in the above-mentioned wound motor, the sealing element is a sealing rubber ring, which has an annular structure and a trapezoidal cross-section, with the upper base width being smaller than the lower base width.

[0017] Optionally, the wound motor further includes at least one auxiliary rod, which is disposed between the first connecting rod and the second connecting rod, and both ends of the auxiliary rod are respectively connected to the base and the slip ring assembly structure.

[0018] The wound motor provided by this invention utilizes an external slip ring assembly structure design. The brush rod holder bracket and the base adopt a stop fit, which facilitates the disassembly and assembly of the slip ring during assembly, and the adjustment of the position of the slip ring and brush. Moreover, whether installing, repairing, or replacing the components of the slip ring assembly structure, the wound motor does not need to be disassembled; the operation can be performed only at the slip ring assembly structure, saving installation and maintenance time, installation hours, and manpower. At the same time, by setting up the brush rod holder bracket, it is only necessary to fix the brush rod holder bracket to the base, which improves the ease of installation. Attached Figure Description

[0019] The accompanying drawings, incorporated in and forming part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort. One or more embodiments are illustrated by way of example through the corresponding images in the accompanying drawings. These exemplary descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0020] Figure 1 A schematic diagram of the assembly structure of the wound motor and slip ring provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the collector ring assembly structure provided in an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Wound motor; 2. Base; 3. Bolts; 4. Brush rod holder bracket; 5. Slip ring assembly structure. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0026] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0027] This application provides a wound-rotor motor, including a motor body 1, a base 2, a brush rod holder bracket 4, and a slip ring assembly structure 5. The slip ring assembly structure 5 is fixed to the base 2 of the motor body 1 through the brush rod holder bracket 4. The brush rod holder bracket 4 is inclinedly connected to the base 2, and a stop fit structure is provided at the connection between the brush rod holder bracket 4 and the base 2 of the motor body 1.

[0028] Specifically, by arranging the brush rod holder bracket 4, the slip ring assembly structure 5 is separated from the motor body 1, that is, the slip ring assembly structure 5 is placed outside the motor body 1, which facilitates the installation, maintenance and replacement of the slip ring assembly structure 5, and saves installation time and manpower.

[0029] The wound motor provided in this application utilizes an external slip ring assembly structure 5. The brush rod holder 4 and the base 2 are fitted with a stop joint, which facilitates the disassembly and assembly of the slip ring during assembly and the adjustment of the position of the slip ring and brush. Furthermore, regardless of whether the components of the slip ring assembly structure 5 are installed, repaired, or replaced, the wound motor does not need to be disassembled; the operation can be performed only at the slip ring assembly structure 5, saving installation and maintenance time, as well as installation hours and manpower. At the same time, by setting the brush rod holder 4, it is only necessary to fix the brush rod holder 4 to the base 2, which improves the ease of installation.

[0030] To optimize the above technical solution, the stop fit structure includes a stop boss provided in one of the base 2 or the brush rod holder 4, and a stop groove provided in the other of the brush rod holder 4 or the base 2. The stop boss is cylindrical or square in shape, and the shape of the stop boss matches the shape of the stop groove. When the two fit together, they can restrict the displacement of the brush rod holder 4 in the vertical and horizontal directions through their own structure, achieve precise positioning, ensure the coaxiality of the slip ring and related components (such as the wound motor shaft), reduce installation errors, and make the slip ring and the brush on the unit on the same axis. Moreover, the stop fit structure can make the slip ring more securely installed on the rotating parts during equipment operation, and it is not easy to displace or loosen.

[0031] By setting the stop boss to a cylindrical shape, the cylindrical mating surface can provide 360° uniform constraint, thereby ensuring concentricity, automatically correcting assembly deviations, and ensuring precise alignment between the slip ring and the motor shaft.

[0032] When the stop boss is set to square, the right-angle mating surface can resist the overturning moment generated by the self-weight of the slip ring, and the planar contact can suppress the circumferential movement of the brush rod seat bracket, ensuring the stability of the structural connection.

[0033] Furthermore, the main body of the stop boss can be designed as a cylindrical boss to ensure coaxiality, and the partial square bosses can realize a composite stop structure with anti-torsion. The cylindrical bosses are set near the base 2, and the square bosses are set near the brush rod support 4.

[0034] To optimize the above technical solution, the brush holder bracket 4 includes a first connecting rod and a second connecting rod. The two ends of the first connecting rod are connected to the base 2 and the slip ring assembly structure 5, respectively. Specifically, the first end of the first connecting rod is connected to the base 2, and its second end is connected to the slip ring assembly structure 5. Similarly, the first end of the second connecting rod is connected to the base 2, and its second end is connected to the slip ring assembly structure 5. The distance between the first end of the first connecting rod and the first end of the second connecting rod is greater than the distance between the second ends of the first connecting rod and the second end of the second connecting rod, thus forming an inclined, avoidance-type bracket.

[0035] Specifically, the tilt angle of the first connecting rod and the second connecting rod is 15°-30° to optimize the stress distribution of the brush rod holder 4.

[0036] To optimize the above technical solution, the slip ring assembly structure 5 is equipped with louvers for ventilation. The louver blades have an inclination angle of 30°-60° and are made of anti-static material. This arrangement can effectively prevent external debris and dust from entering the slip ring while ensuring ventilation and heat dissipation. Furthermore, the use of anti-static material for the louver blades can prevent dust from being attracted by static electricity from affecting the normal operation of the slip ring.

[0037] To optimize the above technical solution, the first connecting rod includes a first connecting surface, and the second connecting rod includes a second connecting surface. Both the first connecting surface and the second connecting surface are in contact with the base 2 and are fixedly connected to the base 2 by bolts 3.

[0038] Specifically, the outer surfaces of the first and second connecting surfaces include anti-slip textures to increase the friction between the brush rod holder bracket 4 and the slip ring assembly structure 5. When the bolts 3 are tightened, the stability of the connection is further improved, preventing the connection from loosening due to vibration or other factors during equipment operation.

[0039] Specifically, the base 2 is made of cast iron and has a reinforcing rib structure inside. The reinforcing ribs are distributed in a cross shape, and the spacing between adjacent reinforcing ribs is 1 / 3 to 1 / 2 of the width of the base 2. This can enhance the structural strength and rigidity of the base 2, reduce the deformation of the base 2 when bearing the weight of the slip ring and various forces generated by the operation of the equipment, and ensure the stability of the stop fit structure and the normal operation of the slip ring.

[0040] To optimize the above technical solution, the surface of bolt 3 has an anti-corrosion coating, which is a zinc-chromium coating with a thickness of 5-10μm. This arrangement can improve the corrosion resistance of bolt 3, adapt to the harsh working environment that wound-rotor motors may face (such as the humid, dusty, and corrosive gas environment in industries such as metallurgy and mining), extend the service life of bolt 3, and ensure the long-term stability and reliability of the installation structure.

[0041] To optimize the above technical solution, a sealing element is also included, which is disposed between the locating boss and the locating groove. The sealing element can be a gasket, rubber ring, or other components, used to tightly fill the gap at the locating joint, preventing external dust, moisture, etc. from entering the motor. At the same time, it plays a certain role in buffering vibrations generated during equipment operation, protecting the locating joint structure.

[0042] To optimize the above technical solution, the sealing element is a sealing rubber ring, which has an annular structure with a trapezoidal cross-section, where the width of the upper base of the trapezoid is smaller than the width of the lower base.

[0043] To optimize the above technical solution, the wound motor also includes at least one auxiliary rod, which is located between the first connecting rod and the second connecting rod, and the two ends of the auxiliary rod are respectively connected to the base 2 and the slip ring assembly structure 5.

[0044] Specifically, the axial angle between the auxiliary rod and the motor shaft is smaller than the axial angle between the first connecting rod and the motor shaft, and the axial angle between the auxiliary rod and the motor shaft is smaller than the axial angle between the second connecting rod and the motor shaft. The auxiliary rod is also an inclined avoidance structure, which can assist in supporting the slip ring assembly structure 5. The operator can adjust the number and arrangement of the auxiliary rods according to the weight of the slip ring assembly structure 5.

[0045] It should be noted that the wound motor provided by this invention can be used in the field of wound motor external device technology or other fields. Other fields refer to any field other than the field of wound motor external device technology. The above is merely an example and does not limit the application field of the wound motor external slip ring provided by this invention.

[0046] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0047] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0048] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A wound-rotor motor, characterized in that, The device includes a motor body (1), a base (2), a brush holder bracket (4), and a slip ring assembly structure (5). The slip ring assembly structure (5) is fixed to the base (2) of the motor body (1) via the brush holder bracket (4). The brush holder bracket (4) is inclinedly connected to the base (2), and a stop fit structure is provided at the connection between the brush holder bracket (4) and the base (2) of the motor body (1).

2. The wound-rotor motor according to claim 1, characterized in that, The stop fit structure includes a stop boss provided on one of the base (2) or the brush rod holder bracket (4), and a stop groove provided on the other of the brush rod holder bracket (4) or the base (2); The stop boss is cylindrical, square, or trapezoidal in shape, and the shape of the stop groove is adapted to the shape of the stop boss.

3. The wound-rotor motor according to claim 2, characterized in that, The brush holder bracket (4) includes a first connecting rod and a second connecting rod. The first end of the first connecting rod is connected to the base (2), and its second end is connected to the slip ring assembly structure (5). The first end of the second connecting rod is connected to the base (2), and its second end is connected to the slip ring assembly structure (5). The inclination angle of the first connecting rod and the second connecting rod is 15°-30°.

4. The wound motor according to claim 3, characterized in that, The collector ring assembly structure (5) is provided with louvers for ventilation. The louvers have a tilt angle of 30°-60° and the blades are made of antistatic material.

5. The wound motor according to claim 4, characterized in that, The first connecting rod includes a first connecting surface, and the second connecting rod includes a second connecting surface. Both the first connecting surface and the second connecting surface are in contact with the base (2) and are fixedly connected to the base (2) by bolts (3).

6. The wound-rotor motor according to claim 5, characterized in that, The bolt (3) has an anti-corrosion coating on its surface. The anti-corrosion coating is a zinc-chromium coating with a thickness of 5-10 μm.

7. The wound-rotor motor according to claim 2, characterized in that, It also includes a sealing element disposed between the stop boss and the stop groove.

8. The wound-rotor motor according to claim 7, characterized in that, The sealing element is a sealing rubber ring, which has an annular structure with a trapezoidal cross-section, the width of the upper base of the trapezoid being smaller than the width of the lower base.

9. The wound-rotor motor according to claim 3, characterized in that, It also includes at least one auxiliary rod, which is disposed between the first connecting rod and the second connecting rod, and the two ends of the auxiliary rod are respectively connected to the base (2) and the slip ring assembly structure (5).

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