Motor protection assembly, motor and engineering vehicle

Abstract

The application provides an electric machine protection assembly, an electric machine and an engineering vehicle, and relates to the technical field of engineering machinery. The electric machine protection assembly comprises a first protection component, a second protection component and a third protection component. The first protection component is used for detachable connection with the upper part of the head of the electric machine body; the second protection component is used for detachable connection with the lower part of the head of the electric machine body; the second protection component and the first protection component are correspondingly arranged to protect the head of the electric machine body; and the third protection component is used for detachable connection with the tail of the electric machine body to protect the tail of the electric machine body. The application solves the defect that the overall protection plate in the prior art is inconvenient to disassemble, thereby increasing the maintenance cost, realizes convenient assembly and disassembly and local maintenance of the electric machine protection assembly, and thus improves the maintenance efficiency and reduces the maintenance cost.

Description

Technical Field

[0001] This application relates to the field of engineering machinery technology, and in particular to a motor protection component, a motor, and an engineering vehicle. Background Technology

[0002] In the field of construction machinery, the operating environment of construction vehicles is complex and variable, making the protection of critical components particularly important. As the core drive unit of construction vehicles, the reliability and lifespan of the electric motor are directly affected by the external environment.

[0003] To ensure the stable operation of motors under harsh conditions, a specialized protective structure is needed on their exterior to provide physical isolation and protection. In existing technologies, motor protective structures typically employ a one-piece molded protective plate.

[0004] However, the aforementioned one-piece molded protective plate design requires operation on all fixing points during installation and disassembly, making the process cumbersome. Even when only partial maintenance of the motor is needed, the entire protective plate must be removed, which not only increases the time and complexity of maintenance work but also indirectly leads to an increase in maintenance costs. Utility Model Content

[0005] This application provides a motor protection component, a motor, and an engineering vehicle to address the shortcomings of existing integrated protective plates, which suffer from high maintenance costs due to inconvenient disassembly. The application enables convenient installation, disassembly, and partial maintenance of the motor protection component, thereby improving maintenance efficiency and reducing maintenance costs.

[0006] On one hand, this application provides a motor protection component, including:

[0007] The first protective component is detachably connected to the upper part of the motor head;

[0008] The second protective component is detachably connected to the lower part of the motor head of the motor body; the second protective component and the first protective component are respectively provided to protect the motor head of the motor body.

[0009] The third protective component is detachably connected to the tail of the motor body to protect the tail of the motor body.

[0010] According to the motor protection assembly provided in this application, the first protective component includes:

[0011] The first central protective component is used to protect the area directly above the motor body;

[0012] The first side wing is obliquely disposed at one end of the first central protective member and is used to protect the first oblique upper part of the nose;

[0013] The second side wing is obliquely disposed at the other end of the first central protective member, and is used to protect the second oblique upper part of the nose;

[0014] Limiting components are provided one-to-one at the ends of the first and second side wings away from the first central protective component, for connection with the motor body.

[0015] According to the motor protection assembly provided in this application, the first central protective component includes:

[0016] The main body is connected at both ends to the first side wing and the second side wing, respectively.

[0017] A protrusion is provided on the side of the main body facing the machine head, and both ends of the protrusion are provided with a first flange extending towards the machine head.

[0018] According to the motor protection assembly provided in this application, the first central protective component, the first side wing, the second side wing, and the limiting component are integrally formed.

[0019] According to the motor protection assembly provided in this application, the second protective component includes:

[0020] The second central protective component is used to protect the area directly below the machine head;

[0021] The first transition piece is inclinedly disposed at one end of the second central protective piece, and is used to protect the first oblique lower part of the machine head;

[0022] The second transition piece is inclinedly disposed at the other end of the second central protective piece, and is used to protect the second oblique lower part of the machine head;

[0023] Side guards are provided one-to-one at the ends of the first transition piece and the second transition piece away from the second central guard, for protecting the lower side of the machine head.

[0024] According to the motor protection assembly provided in this application, the second central protective component, the first transition component, the second transition component, and the side protective component are integrally formed.

[0025] According to the motor protection assembly provided in this application, the third protective component includes:

[0026] Protective components are used to protect the bottom of the tail section;

[0027] A connector is provided on the side of the protective component facing the motor body, for detachably attaching the protective component to the motor body.

[0028] According to the motor protection assembly provided in this application, the protective component includes:

[0029] The protective component body is connected to the connecting component;

[0030] The second flange is located on both sides of the protective component body and extends towards the motor body.

[0031] On the other hand, this application provides an electric motor, including a motor protection component and a motor body as described in any of the above embodiments.

[0032] In another aspect, this application provides an engineering vehicle that includes a motor as described in any of the above embodiments.

[0033] This application provides a motor protection component, a motor, and an engineering vehicle. The motor protection component is divided into three independent, detachable protective parts, allowing each part to be installed and removed separately. This enables localized maintenance by operating only the protective parts of the relevant area, avoiding the cumbersome operation of complete disassembly. This structural design reduces the time and complexity of maintenance operations, minimizes maintenance costs caused by excessive disassembly, and maintains effective isolation and protection of the motor. Since both the motor and the engineering vehicle provided in this application include the aforementioned motor protection component, they also possess the aforementioned beneficial effects. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0035] Figure 1 This is a schematic diagram of the structure of the motor provided in this application;

[0036] Figure 2 Exploded view of the motor provided in this application;

[0037] Figure 3 A schematic diagram of the structure of the first protective component of the motor protection assembly provided in this application;

[0038] Figure 4 A schematic diagram of the structure of the second protective component of the motor protection assembly provided in this application;

[0039] Figure 5 A schematic diagram of the structure of the protective component of the motor protection assembly provided in this application;

[0040] Figure 6 This is a schematic diagram of the connector of the motor protection assembly provided in this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100: First protective component; 110: First central protective component; 111: Main body; 112: Protrusion; 113: First flange; 120: First side wing; 130: Second side wing; 140: Limiting component;

[0043] 200: Second protective component; 210: Second central protective component; 220: First transition component; 230: Second transition component; 240: Side protective component;

[0044] 300: Third protective component; 310: Protective element; 311: Protective element body; 312: Second flange; 320: Connector; 321: Connector body; 322: Connecting part;

[0045] 400: Motor body.

[0046] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0047] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0048] As described in the background section, existing motor protection structures typically employ a one-piece molded protective plate. This design presents several problems: installation and disassembly require operation on all mounting points, making the process cumbersome. Even when only a portion of the motor needs repair, the entire protective plate must be removed, increasing both the time and complexity of maintenance work and indirectly raising maintenance costs.

[0049] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0050] Reference Figure 1 and Figure 2The motor protection assembly provided in this application includes a first protection component 100, a second protection component 200, and a third protection component 300. The first protection component 100 is detachably connected to the upper part of the motor head of the motor body 400; the second protection component 200 is detachably connected to the lower part of the motor head of the motor body 400; the second protection component 200 and the first protection component 100 are correspondingly arranged to protect the motor head of the motor body 400; the third protection component 300 is detachably connected to the tail of the motor body 400 to protect the tail of the motor body 400.

[0051] It should be noted that the motor protection assembly provided in this application may also include a fourth protective component, a fifth protective component, etc., and their specific quantity can be matched and set according to the actual structure and size of the motor body 400. Secondly, the specific protective space size and protective orientation of the first protective component 100, the second protective component 200, and the third protective component 300 can be matched and set according to the actual structure and size of the motor body 400.

[0052] In use, the first protective component 100 is installed on the upper part of the motor head of the motor body 400, and the second protective component 200 is installed on the lower part of the motor head of the motor body 400. The two components correspond to each other and together form a protective enclosure for the motor head of the motor body 400. The third protective component 300 is installed on the tail of the motor body 400, providing independent protection for the tail of the motor. When it is necessary to perform partial maintenance on the motor, the corresponding protective component can be selectively disassembled according to maintenance needs, without having to completely remove the entire protective structure.

[0053] This application divides the existing integrated protective plate into three independent, detachable protective components, allowing each component to be installed and removed separately. This enables localized maintenance by operating only the protective components in the relevant area, avoiding the cumbersome process of complete disassembly. This structural design reduces the time and complexity of maintenance operations, minimizes maintenance costs caused by excessive disassembly, and maintains effective isolation and protection of the motor.

[0054] In some other possible embodiments, the first protective component 100, the second protective component 200, and the third protective component 300 may be made of aluminum alloy. Aluminum alloy has a low density and a high specific strength, which can significantly reduce the overall weight of the protective components while ensuring their structural strength and rigidity.

[0055] Reference Figure 3In some embodiments of this application, the first protective component 100 includes a first central protective component 110, a first side wing 120, a second side wing 130, and a limiting component 140. The first central protective component 110 protects the area directly above the motor body 400; the first side wing 120 is obliquely disposed at one end of the first central protective component 110 to protect the area above the motor head at a first oblique angle; the second side wing 130 is obliquely disposed at the other end of the first central protective component 110 to protect the area above the motor head at a second oblique angle; and the limiting component 140 is correspondingly disposed at the ends of the first side wing 120 and the second side wing 130 away from the first central protective component 110, for connection to the motor body 400.

[0056] Specifically, the first side wing 120 and the second side wing 130 can both be fixed to the edges of the left and right ends of the first central protective member 110 by welding. The first side wing 120 forms an obtuse angle with the first central protective member 110, specifically between 120 and 150 degrees. This arrangement allows the first side wing 120 to cover the upper side slope of the motor body 400 head. Similarly, the second side wing 130 also forms the same obtuse angle with the first central protective member 110, symmetrically covering the slope on the other side. A limiting member 140 is vertically fixed to the free end edge of the first side wing 120 away from the first central protective member 110 by welding, and another limiting member 140 is fixed to the free end edge of the second side wing 130 in the same manner. The limiting member 140 has a plate-like structure, and its plate surface is in contact with the corresponding mounting surface of the motor body 400 in the assembled state. Each limiting member 140 may be provided with a limiting through hole for inserting a bolt, which then engages with a threaded hole on the motor body 400 to achieve a fastening connection. Alternatively, each limiting member 140 may also be provided with a threaded hole, in which case the bolt passes through a smooth hole on the motor body 400 and is screwed into the threaded hole to achieve a fastening.

[0057] During assembly, the operator can place the first protective component 100 facing the upper part of the motor head of the motor body 400, so that the first central protective component 110 covers the top of the motor, while the first side wing 120 and the second side wing 130 are respectively attached to the two oblique upper surfaces of the motor head. Then, align the limiting through holes or threaded holes provided on the two limiting components 140 with the preset connection points on the motor body 400, and use bolts to pass through and tighten them in sequence, thereby completing the installation of the first protective component 100.

[0058] In this embodiment, the first protective component 100 is designed as a composite plate structure consisting of a first central protective component 110, two side wings, and two limiting components 140. The side wings are connected to the central protective component at a specific obtuse angle, so that the protective shape matches the contour of the upper part of the motor head, achieving comprehensive coverage protection. The limiting components 140 are located at the ends of the side wings and are directly connected to the motor body 400. This structure provides multiple distributed fastening points, enhancing the stability of the connection and preventing loosening under vibration.

[0059] In some other possible embodiments, a plurality of first reinforcing ribs are provided on the inner side of the connection between the first central protective member 110 and the first side wing 120, and a plurality of second reinforcing ribs are provided on the outer side of the connection between the first side wing 120 and the limiting member 140 and the outer side of the connection between the second side wing 130 and the limiting member 140, thereby increasing the protective strength of the first protective member 100.

[0060] Reference Figure 3 In some embodiments of this application, the first central protective member 110 includes a main body 111 and a protrusion 112. The two ends of the main body 111 are connected to the first side wing 120 and the second side wing 130, respectively; the protrusion 112 is provided on the side of the main body 111 facing the nose, and both ends of the protrusion 112 are provided with a first flange 113 extending towards the nose.

[0061] Specifically, the protrusion 112 can be integrally formed with the main body 111 to form a continuous sheet metal part, that is, the protrusion 112 is formed by stamping a local area of ​​the main body 111 protruding towards the head of the motor body 400. The first flange 113 is also formed by stamping and bending the two ends of the protrusion 112 towards the head. In another embodiment, the protrusion 112 can also be an independent component, with its edges fixedly connected to the edges of the corresponding windows on the main body 111 by welding. In this case, the first flange 113 is part of the body of the protrusion 112 and is formed by bending the two sides of the independent component. The plate surface of the first flange 113 is parallel to the side wall of the protruding part on the head of the motor and has a gap, and its end can be folded back to form an edge-wrapping structure to improve edge rigidity.

[0062] In this embodiment, by providing the protrusion 112 and the first flange 113, the first central protective member 110 can accommodate and protect the protruding parts on the motor head, achieving a close fit and protection against non-flat contours. The protrusion 112 provides additional radial protection space, while the first flange 113 provides lateral shielding and limiting. Together, they form a three-sided surrounding local protection structure, effectively preventing external foreign objects from impacting or scratching the protruding parts of the motor from the front and sides, thus enhancing the local protection capability for critical protruding parts.

[0063] Reference Figure 3 In some embodiments of this application, the first central protective member 110, the first side wing 120, the second side wing 130, and the limiting member 140 are integrally formed.

[0064] Specifically, the first central protective member 110, the first side wing 120, the second side wing 130, and the limiting member 140 are integrally formed from a single continuous metal sheet through stamping and bending processes. The first side wing 120 and the second side wing 130 are respectively connected to the left and right edges of the first central protective member 110 through a single bend, and the inner radius of the bend is determined according to the sheet thickness and material ductility. The limiting member 140 is respectively connected to the free end edges of the first side wing 120 and the second side wing 130 away from the first central protective member 110 through a single bend, and this bend makes the plate surface of the limiting member 140 parallel to the mounting surface of the motor body 400 after forming.

[0065] This embodiment designs all components of the first protective component 100 as an integrated bending and forming structure, eliminating potential weak points that may exist between components connected by welding or fasteners, making force transmission smoother, thereby improving the overall structural strength and rigidity. This integrated molding process reduces the number of parts and assembly steps, which not only improves production efficiency and reduces manufacturing costs, but also avoids the risk of failure due to loose connections, enhancing the reliability of the protective component in vibration environments.

[0066] In other possible embodiments, the first central protective member 110, the first side wing 120, the second side wing 130, and the limiting member 140 can also be integrally formed using a casting process. After cleaning, the casting blank is drilled and tapped at the connection hole positions on the limiting member 140 to form threaded holes, or smooth holes are directly cast and then wire thread inserts are installed. Integral forming through a casting process greatly improves design freedom, allowing for the convenient arrangement of complex reinforcing rib networks in stress concentration areas and achieving smoother irregular curved surface shapes, thereby achieving optimal lightweight effect while ensuring strength.

[0067] Reference Figure 3In some embodiments of this application, the second protective component 200 includes a second central protective component 210, a first transition component 220, a second transition component 230, and side protective components 240. The second central protective component 210 protects the area directly below the machine head; the first transition component 220 is inclined at one end of the second central protective component 210 to protect the area below the machine head at a first angle; the second transition component 230 is inclined at the other end of the second central protective component 210 to protect the area below the machine head at a second angle; two side protective components 240 are provided, corresponding to the ends of the first transition component 220 and the second transition component 230 away from the second central protective component 210, to protect the lower side of the machine head.

[0068] Specifically, the first transition piece 220 and the second transition piece 230 are both fixed to the left and right edges of the second central protective piece 210 by welding. The first transition piece 220 and the second central protective piece 210 form an obtuse angle, allowing them to fit the first inclined surface at the bottom of the motor body 400. The second transition piece 230 is connected to the second central protective piece 210 in the same manner and symmetrically covers the other inclined surface. Two side protective pieces 240 are fixed to the free ends of the first transition piece 220 and the second transition piece 230 away from the second central protective piece 210 by welding. The surface of the side protective piece 240 is approximately parallel to the contour of the lower side of the motor body 400 in the assembled state. In another embodiment, the second central protective piece 210, the first transition piece 220, the second transition piece 230, and the two side protective pieces 240 can also be integrally formed from a single continuous metal plate through multiple bending processes, with the connection between the components naturally formed by bending. The side guard 240 is provided with through holes or threaded holes, so that it can be detachably connected to the motor body 400 by bolts.

[0069] This embodiment utilizes a combination of a second central protective component 210, a first transition component 220, a second transition component 230, and a side protective component 240 to create a multi-directional protective structure extending from directly below and diagonally below the bottom of the motor to the lower side. This structure effectively prevents debris, mud, or other foreign objects splashed from the ground from impacting the lower part and lower side area of ​​the motor head, providing comprehensive protection. The inclined design of the transition components allows the protective parts to better adapt to the complex contours of the lower part of the motor, while the side protective component 240 compensates for the insufficient protection of the lower sides by the bottom protection, enhancing the overall tightness of the protection.

[0070] In some other possible embodiments, a third reinforcing rib may be provided on the inner side of the connection between the second central protective member 210 and the first transition member 220, a fourth reinforcing rib may be provided on the inner side of the connection between the second central protective member 210 and the second transition member 230, a fifth reinforcing rib may be provided on the inner side of the connection between the first transition member 220 and the side protective member 240, and a fifth reinforcing rib may be provided on the inner side of the connection between the second transition member 230 and the side protective member 240, thereby increasing the protective strength of the entire second protective member 200.

[0071] Reference Figure 4 In some embodiments of this application, the second central protective member 210, the first transition member 220, the second transition member 230, and the side protective member 240 are integrally formed. Their configuration and beneficial effects can be referenced from the integrally formed configuration of the first central protective member 110, the first side wing 120, the second side wing 130, and the limiting member 140, and will not be repeated here.

[0072] Reference Figure 2 In some embodiments of this application, the third protective component 300 includes a protective member 310 and a connecting member 320. The protective member 310 serves as the main protective body and is used to protect the bottom of the tail section. The connecting member 320 is located on the side of the protective member 310 facing the motor body 400 and is used to detachably attach the protective member 310 to the motor body 400.

[0073] Reference Figure 5 and Figure 6 In some embodiments of this application, the protective member 310 includes an integrally formed protective member body 311 and a second flange 312; the second flange 312 is disposed on both sides of the protective member body 311 and extends toward the motor body 400.

[0074] The connector 320 includes an integrally formed connector body 321 and a connecting portion 322 disposed on the connector body 321. The connector body 321 has multiple through holes or threaded holes, allowing it to be detachably connected to the motor body 400 by bolts. The connecting portion 322 can specifically be configured as an L-shaped structure, with multiple through holes or threaded holes corresponding to the end of the connecting portion 322 away from the connector body 321 and the protective body 311, thereby allowing the connecting portion 322 and the protective body 311 to be detachably connected by bolts.

[0075] Specifically, the protective body 311 and the second flange 312 are integrally formed by sheet metal bending, and the second flange 312 is formed by bending the two sides of the protective body 311 vertically. The connecting body 321 and the connecting part 322 are integrally formed by casting. The connecting body 321 has multiple through holes for bolts to pass through, and the bolts are then engaged with the threaded holes on the tail end face of the motor body 400 to achieve main fixation. The plate surface of the connecting part 322 is parallel to the plate surface of the protective body 311 with a gap. The connecting part 322 has multiple through threaded holes, and the protective body 311 has corresponding through holes. During installation, the bolts pass through the through holes on the protective body 311 and are screwed into the threaded holes of the connecting part 322, thereby fastening the two together.

[0076] This embodiment separates the protective component 310 and the connecting component 320 into two independently manufactured parts connected by bolts, thus separating the protective function module from the installation function module. The protective component 310 employs an easily formable sheet metal structure, facilitating the manufacture of large-area protective panels; the connecting component 320 utilizes a rigid cast structure, providing a stable mounting base. This split structure allows for the replacement or repair of either the protective component 310 or the connecting component 320 separately without replacing the entire component, reducing maintenance costs. The L-shaped connecting component 320 transforms the fixing point on the motor end face into a lateral mounting surface for the protective component 311, simplifying the alignment process for the protective component 310.

[0077] In some other possible embodiments, a locating pin may be provided at the interface between the connector body 321 and the motor end face, and a locating hole may be provided at a corresponding position on the motor end face. A stepped structure may be provided at the interface between the protective body 311 and the connecting part 322, allowing for mutual fitting. In this embodiment, the cooperation of the locating pin and the locating hole ensures the accurate installation position of the connector 320 on the motor, improving assembly precision. The stepped structure provides self-positioning when the protective body 311 and the connecting part 322 are joined, and can withstand some shear loads, reducing the stress on the bolts and enhancing the stability and impact resistance of the connection interface.

[0078] This application also provides an electric motor, which includes the motor protection component and the motor body 400 of any of the above embodiments.

[0079] This application also provides an engineering vehicle that includes the motor of any of the above embodiments.

[0080] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0081] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A motor protection component, characterized in that, include: The first protective component is detachably connected to the upper part of the motor head; The second protective component is detachably connected to the lower part of the motor head of the motor body; the second protective component and the first protective component are respectively provided to protect the motor head of the motor body. The third protective component is detachably connected to the tail of the motor body to protect the tail of the motor body.

2. The motor protection assembly according to claim 1, characterized in that, The first protective component includes: The first central protective component is used to protect the area directly above the motor body; The first side wing is obliquely disposed at one end of the first central protective member and is used to protect the first oblique upper part of the nose; The second side wing is obliquely disposed at the other end of the first central protective member, and is used to protect the second oblique upper part of the nose; Limiting components are provided one-to-one at the ends of the first and second side wings away from the first central protective component, for connection with the motor body.

3. The motor protection assembly according to claim 2, characterized in that, The first central protective component includes: The main body is connected at both ends to the first side wing and the second side wing, respectively. A protrusion is provided on the side of the main body facing the machine head, and both ends of the protrusion are provided with a first flange extending towards the machine head.

4. The motor protection assembly according to claim 2 or 3, characterized in that, The first central protective component, the first side wing, the second side wing, and the limiting component are integrally formed.

5. The motor protection assembly according to claim 1, characterized in that, The second protective component includes: The second central protective component is used to protect the area directly below the machine head; The first transition piece is inclinedly disposed at one end of the second central protective piece, and is used to protect the first oblique lower part of the machine head; The second transition piece is inclinedly disposed at the other end of the second central protective piece, and is used to protect the second oblique lower part of the machine head; Side guards are provided one-to-one at the ends of the first transition piece and the second transition piece away from the second central guard, for protecting the lower side of the machine head.

6. The motor protection assembly according to claim 5, characterized in that, The second central protective component, the first transition component, the second transition component, and the side protective component are integrally formed.

7. The motor protection assembly according to claim 1, characterized in that, The third protective component includes: Protective components are used to protect the bottom of the tail section; A connector is provided on the side of the protective component facing the motor body, for detachably attaching the protective component to the motor body.

8. The motor protection assembly according to claim 7, characterized in that, The protective component includes: The protective component body is connected to the connecting component; The second flange is located on both sides of the protective component body and extends towards the motor body.

9. An electric motor, characterized in that, Includes the motor protection component and motor body as described in any one of claims 1-8.

10. An engineering vehicle, characterized in that, Includes the motor as described in claim 9.

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