Secondary structure of permanent magnet linear motor

Abstract

The utility model discloses a permanent magnet linear motor secondary structure, comprising a guard plate assembly, a base plate assembly and magnets, the magnets are arranged on the base plate assembly at intervals, the guard plate assembly covers the base plate assembly, two sides of the base plate assembly are provided with positioning ports along the length of the base plate assembly, and the positioning ports are arranged on the base plate assembly. The permanent magnet linear motor secondary structure is characterized in that the protection plate assembly is composed of a U-shaped part and extension parts on the two sides of an opening, a plurality of positioning teeth are arranged at the positions, intersecting with the extension parts, in the U-shaped part in the length direction of the U-shaped part, and the positioning teeth are matched with the positioning openings. Through the positioning teeth of the protection plate assembly and the positioning openings of the bottom plate assembly, an operator can be conveniently and rapidly helped to complete product assembling work, the occurrence rate of defective products is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of permanent magnet linear motor technology, and particularly relates to a secondary structure of a permanent magnet linear motor. Background Technology

[0002] The linear drive motors used in logistics sorting equipment are generally asynchronous linear motors and permanent magnet linear motors. With the increasing energy-saving requirements of electrical equipment, permanent magnet linear motors, with their advantages of high efficiency and small size, are gradually being accepted by customers and replacing asynchronous linear motors. Logistics sorting equipment is bulky, resulting in a large demand for permanent magnet linear motors.

[0003] Large-scale logistics sorting equipment uses a significant amount of motor secondary windings. The magnetic poles of the linear motor secondary winding are permanent magnets, possessing strong magnetic properties.

[0004] Conventional permanent magnet linear motors have pre-drilled mounting holes on the magnetic field coupling surface of the secondary structure. The magnetic field generated by the poles easily attracts ferromagnetic debris. This debris, once inside the mounting holes, cannot be removed by a cleaning brush. Therefore, during operation, debris can easily scrape against the primary winding of the linear motor, causing damage. Furthermore, large objects can become lodged and impact the primary winding, directly damaging the motor and posing a safety hazard.

[0005] Furthermore, the assembly of conventional permanent magnet motor secondary structures requires operators to align the guard plate and base plate components based on experience. This can lead to defective products due to improper installation by operators. Rework and repair of defective products prolong the product assembly cycle and reduce production efficiency. Therefore, a solution is needed to address these issues.

[0006] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0007] To address the aforementioned problems, the purpose of this invention is to provide a secondary structure of a permanent magnet linear motor that uses positioning teeth and positioning openings to quickly help operators position and fix the guard plate assembly and base plate assembly together.

[0008] To achieve the above objectives, this utility model proposes a secondary structure for a permanent magnet linear motor, including a guard plate assembly, a base plate assembly, and magnets. The magnets are spaced apart on the base plate assembly, and the guard plate assembly covers the base plate assembly. Positioning openings are provided on both sides of the base plate assembly along its length. The guard plate assembly consists of a U-shaped portion and extension portions on both sides of the opening. Several positioning teeth are provided along the length of the U-shaped portion at the intersection with the extension portions, and the positioning teeth are adapted to the positioning openings.

[0009] In one example, the positioning ports include several groups, which are arranged at intervals along the length of the base plate assembly, and the positioning ports are located in the gap between two magnets.

[0010] In one example, the guard plate assembly is integrally molded.

[0011] In one example, the protective plate assembly is made of stainless steel.

[0012] In one example, baffles are connected to the two ends of the U-shaped portion away from the extension portion along the outer edge of the U-shaped portion.

[0013] In one example, a positioning hole is provided on the extension portion along the length of the extension portion.

[0014] In one example, the depth of the guard plate assembly is less than the height of the base plate assembly after the magnet is mounted.

[0015] In one example, the edge of the extension of the guard plate assembly is rounded.

[0016] The secondary structure of the permanent magnet linear motor proposed in this utility model can bring the following beneficial effects:

[0017] 1. The positioning teeth of the guard plate assembly and the positioning holes of the base plate assembly can help operators complete the product assembly work conveniently and quickly, reduce the defective product rate, and improve production efficiency.

[0018] 2. The one-piece molded guard plate assembly can eliminate the gaps on the coupling surface of the guard plate assembly, thus eliminating the need to reserve mounting holes on the coupling surface of the guard plate assembly. This prevents the magnetic field generated by the magnetic poles from attracting ferromagnetic debris into the motor, which could cause it to scrape against the primary of the linear motor during operation.

[0019] 3. The depth of the guard plate assembly is less than that of the base plate assembly and the magnet combination, which can generate compressive force during assembly, thereby making the fixation between the magnet and the base plate assembly more reliable and ensuring the structural stability of the linear motor.

[0020] 4. The folded, rounded edge of the guard plate assembly can reduce safety hazards to operators. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a top view of the secondary structure of a permanent magnet linear motor according to this utility model.

[0023] Figure 2 This is a perspective view of the secondary structure of a permanent magnet linear motor according to this utility model.

[0024] Figure 3 This is a front view of the secondary structure of a permanent magnet linear motor according to this utility model.

[0025] Figure 4 This is a bottom view of the protective plate assembly of this utility model.

[0026] Figure 5 This is an assembly structure diagram of the base plate assembly and the magnet of this utility model.

[0027] Figure 6 This is an exploded view of the secondary structure of a permanent magnet linear motor according to this utility model. Detailed Implementation

[0028] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0033] like Figures 1-6 As shown in the figure, an embodiment of this utility model proposes a secondary structure for a permanent magnet linear motor, including a guard plate assembly 1, a base plate assembly 2, and magnets 3. Magnets 3 are spaced apart on the base plate assembly 2. The guard plate assembly 1 covers the base plate assembly 2. Positioning openings 4 are provided on both sides of the base plate assembly 2 along its length. The guard plate assembly 1 consists of a U-shaped portion 11 and extension portions 12 on both sides of the opening. A plurality of positioning teeth 5 are provided along the length of the U-shaped portion 11 at the intersection with the extension portions 12. The positioning teeth 5 are adapted to the positioning openings 4. When the guard plate assembly 1 is fastened onto the base plate assembly 2, the positioning teeth 5 are engaged in the positioning openings 4, thereby helping operators reduce product assembly cycles, improve production efficiency, avoid increased scrap rates due to improper operation, and thus reduce the number of defective products requiring rework.

[0034] The magnet can be made of a powerful magnet, which can generate greater thrust in a smaller volume by utilizing the strong magnetism of the magnet.

[0035] Specifically, the positioning port 4 includes several groups, which are arranged at intervals along the length of the base plate assembly 2, and the positioning port 4 is located in the gap between the two magnets 3.

[0036] Specifically, the guard plate assembly 1 is integrally formed, so that there are no gaps on the coupling surface of the guard plate assembly 1, eliminating the need for pre-reserved mounting holes on the coupling surface during the assembly of the guard plate assembly 1, and preventing the magnetic field generated by the magnetic poles from attracting ferromagnetic material debris into the motor, thereby preventing the linear motor primary from scraping during the movement.

[0037] Specifically, the material of the protective plate assembly 1 is stainless steel. By using the stainless steel protective plate assembly 1, the attraction caused by the magnet 3 can be avoided, thereby improving the connection efficiency between the components.

[0038] Specifically, baffles 13 are connected to the two ends of the U-shaped portion 11 away from the extension portion 12 along the outer edge of the U-shaped portion 11.

[0039] Specifically, a positioning hole 121 is provided along the length of the extension portion 12.

[0040] Specifically, the depth of the guard plate assembly 1 is less than the height of the base plate assembly 2 after the magnet 3 is assembled. When the guard plate assembly 1 is placed on the base plate assembly 2 and the magnet 3, and is assembled by fixing bolts through the positioning hole 121, the guard plate assembly 1 will exert a squeezing force on the base plate assembly 2 and the magnet 3, thereby making the magnet 3 more securely fixed between the base plate assembly 2 and the guard plate assembly 1, reducing the shearing force generated by the impact, ensuring the stability of the overall structure, and extending the service life of the linear motor secondary.

[0041] Specifically, the edge of the extension portion 12 of the guard plate assembly 1 is rounded to avoid sharp edges from accidentally injuring operators.

[0042] Working principle: Magnets are fixed at intervals on the upper surface of the base plate assembly, and the guard plate assembly is placed on the combination of the base plate assembly and magnets. During this process, the positioning teeth of the guard plate assembly smoothly engage with the corresponding positioning holes in the base plate assembly, thereby helping operators to quickly complete positioning and assembly. The positioning holes are located in the gaps between the magnets in the base plate assembly, avoiding the interference of the positioning teeth and positioning holes with the magnets. This structure, combined with the one-piece molded guard plate assembly, not only eliminates the original pre-reserved mounting holes on the coupling surface and eliminates the hidden danger of magnetic debris entering the linear motor, but also helps operators to quickly and accurately complete the assembly of the product, reducing rework rate and defect rate, and improving production efficiency.

[0043] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0044] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A secondary structure for a permanent magnet linear motor, characterized in that, The device includes a protective plate assembly, a base plate assembly, and magnets. The magnets are spaced apart on the base plate assembly, and the protective plate assembly covers the base plate assembly. Positioning openings are provided on both sides of the base plate assembly along its length. The protective plate assembly consists of a U-shaped portion and extension portions on both sides of the opening. Several positioning teeth are provided along the length of the U-shaped portion at the intersection with the extension portions, and the positioning teeth are adapted to the positioning openings.

2. The secondary structure of a permanent magnet linear motor according to claim 1, characterized in that, The positioning ports include several groups, which are arranged at intervals along the length of the base plate assembly, and the positioning ports are located in the gap between the two magnets.

3. The secondary structure of a permanent magnet linear motor according to claim 1, characterized in that, The protective plate assembly is integrally molded.

4. The secondary structure of a permanent magnet linear motor according to claim 1, characterized in that, The protective plate assembly is made of stainless steel.

5. The secondary structure of a permanent magnet linear motor according to claim 1, characterized in that, The two ends of the U-shaped portion away from the extended portion are respectively connected to baffles along the outer edge of the U-shaped portion.

6. The secondary structure of a permanent magnet linear motor according to claim 1, characterized in that, The extension portion has positioning holes along its length.

7. The secondary structure of a permanent magnet linear motor according to claim 1, characterized in that, The depth of the protective plate assembly is less than the height of the base plate assembly after the magnet is assembled.

8. The secondary structure of a permanent magnet linear motor according to claim 1, characterized in that, The edge of the extension portion of the guard plate assembly is arc-shaped.

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