Sectional type cylindrical linear motor

Abstract

The utility model discloses a sectional type cylindrical linear motor, and relates to the technical field of linear motors. The stator comprises at least two stator sections which are arranged along the axial direction, wherein the adjacent stator sections are connected with each other through a connecting assembly; the stator section comprises a cylindrical shell, radiating fins uniformly distributed on the surface of the outer wall of the cylindrical shell, a sealing cover plate fixed at the end part of the cylindrical shell, a pressure balance valve assembled on the sealing cover plate, a service port arranged at the side part of the cylindrical shell, and a waterproof plug embedded in the service port; the connecting assembly comprises a marking ring, a lug seat integrally arranged on the circumferential side of the marking ring and a positioning pin connected to the lug seat. According to the utility model, the segmented stator segments are arranged, so that a user can select a proper number of stator segments for combination according to actual needs, thereby meeting the size requirements in different occasions, and when a certain segment of stator fails, only the damaged part needs to be replaced without replacing the whole stator, thereby reducing the maintenance cost and time.

Description

Technical Field

[0001] The utility model belongs to the technical field of linear motors, in particular to a segmented cylindrical linear motor. Background Art

[0002] A linear motor is a device that converts electrical energy directly into linear motion. Unlike traditional rotary motors, which achieve linear motion through mechanical transmission mechanisms (such as screws and belts), linear motors provide more direct, efficient, and precise linear drive. They are widely used in applications requiring high-precision positioning and fast response speeds, such as semiconductor manufacturing equipment, precision machine tools, automated production lines, and high-speed transportation systems.

[0003] Traditional linear motors are usually designed as an integral unit with a fixed length. This means that if users need a motor of a different length, they must customize or select a different model, which increases cost and complexity. In high-power-density applications, a lot of heat is generated inside the motor. If this heat cannot be effectively dissipated, the motor will overheat, affecting performance and life. Once a motor fails, the entire unit may need to be disassembled and inspected, which is not only time-consuming but also increases repair costs. In addition, in some cases it may be difficult to directly access the faulty component. In some working environments, external factors such as dust and moisture may enter the motor, causing electrical short circuits or other damage, reducing the reliability of the system.

[0004] To this end, we provide a segmented cylindrical linear motor to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a segmented cylindrical linear motor comprising at least two stator segments arranged along the axial direction, wherein adjacent stator segments are connected to each other via a connecting assembly;

[0007] The stator segment includes a cylindrical shell, heat dissipation fins evenly distributed on the outer wall surface of the cylindrical shell, a sealing cover fixed to the end of the cylindrical shell, a pressure balancing valve assembled on the sealing cover, a service port provided on the side of the cylindrical shell, and a waterproof plug embedded in the service port;

[0008] The connecting assembly comprises a marking ring, an ear seat integrally arranged on the circumference of the marking ring, and a positioning pin connected to the ear seat.

[0009] The present invention is further configured such that the stator segment further includes support feet, wherein the support feet are fixed to the bottom of the cylindrical shell.

[0010] The present invention is further configured such that the heat dissipation ribs are arranged in a wave shape and are annular in structure.

[0011] The utility model is further configured such that the sealing cover plate is made of stainless steel, and the pressure balancing valve is a one-way vent valve that only allows gas to flow from the inside to the outside.

[0012] The present invention is further configured such that grooves or protrusions are evenly arranged on the side surface of the marking ring, and the marking ring is fixed to the sealing cover plate.

[0013] The utility model is further configured such that a reflective ring is embedded in the marking ring, and the marking rings arranged opposite to each other are buckled together.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model provides segmented stator segments, which allows the overall length of the motor to be flexibly adjusted according to specific application requirements. Users can select the appropriate number of stator segments according to actual needs to meet the size requirements of different occasions. When a certain section of the stator fails, only the damaged part needs to be replaced without replacing the entire stator, which reduces maintenance costs and time.

[0016] 2. The utility model adopts wavy annular heat dissipation fins to increase the surface area, which helps to accelerate the heat dissipation from the inside of the motor to the external environment, maintain the temperature stability of the motor during operation, and extend the service life. The efficient heat dissipation mechanism can reduce the performance degradation caused by overheating and ensure that the motor can still work efficiently under high load conditions.

[0017] 3. The utility model provides a connection component (marking ring, ear seat and positioning pin). The groove or protrusion design on the marking ring helps the operator to quickly find the correct position relationship, speeding up the alignment speed between adjacent stator segments. The ear seat cooperates with the positioning pin to form a solid mechanical interface that can withstand large axial forces without loosening, ensuring the stability of the entire machine structure.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at point A in the figure.

[0022] Figure 3 This is a schematic diagram of the stator segment structure in the present utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 100. Stator segment; 101. Cylindrical shell; 102. Heat dissipation ribs; 103. Sealing cover; 104. Pressure balance valve; 105. Service port; 106. Waterproof plug; 107. Support foot; 200. Connecting assembly; 201. Marking ring; 202. Ear seat; 203. Locating pin. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] See also Figure 1-3 The utility model is a segmented cylindrical linear motor, comprising at least two stator segments 100 arranged along the axial direction, wherein adjacent stator segments 100 are connected to each other via a connecting assembly 200;

[0028] The stator segment 100 includes a cylindrical housing 101, heat dissipation fins 102 evenly distributed on the outer surface of the cylindrical housing 101, a sealing cover plate 103 fixed to the end of the cylindrical housing 101, a pressure balancing valve 104 assembled on the sealing cover plate 103, a service port 105 provided on the side of the cylindrical housing 101, and a waterproof plug 106 embedded in the service port 105.

[0029] The connecting assembly 200 includes a marking ring 201 , an ear seat 202 integrally provided on a circumference of the marking ring 201 , and a positioning pin 203 connected to the ear seat 202 .

[0030] Specifically, grooves or protrusions are evenly arranged on the side of the marking ring 201, and the marking ring 201 is fixed to the sealing cover plate 103. A reflective ring is embedded in the marking ring 201, and the marking rings 201 arranged opposite to each other are buckled together.

[0031] Furthermore, the stator segment 100 also includes a support foot 107, wherein the support foot 107 is fixed to the bottom of the cylindrical shell 101, the heat dissipation ribs 102 are arranged in a wave shape, and the heat dissipation ribs 102 are annular structures, the sealing cover plate 103 is made of stainless steel, and the pressure balance valve 104 is a one-way vent valve that only allows gas to flow from the inside to the outside.

[0032] The stator section of the linear motor is designed to be composed of at least two independent but connectable modules (stator segments 100), so the overall length of the motor can be adjusted according to specific application requirements. Each stator segment 100 is a complete unit, including the necessary electrical and mechanical components, which can be easily produced and tested separately. Further explanations of the motor structure are as follows:

[0033] Heat dissipation ribs 102 are evenly distributed on the outer wall surface of the cylindrical shell 101. These ribs are arranged in a wave form, which increases the surface area and helps to improve the heat exchange efficiency, so that the heat generated by the motor during operation can be quickly transferred to the external air, keeping the internal temperature of the motor within a reasonable range; the heat dissipation ribs 102 are made of a material with good thermal conductivity to ensure that heat can be quickly transferred from the inside of the motor; the sealing cover 103 is made of stainless steel with good corrosion resistance and strength, and is used to seal the two ends of the cylindrical shell 101 to prevent dust, moisture and other foreign matter from entering the interior of the motor; the pressure balancing valve 104 installed on the sealing cover 103 allows the gas generated by the temperature rise inside the motor to escape, while preventing external moisture or impurities from entering, thereby maintaining a dry and clean internal environment; the service port 105 arranged on the side of the cylindrical shell 101 provides a convenient access for maintenance, through which internal inspection or replacement of parts can be carried out; the waterproof plug 106 embedded in the service port 105 ensures safe and reliable electrical connection even in humid environments.

[0034] The marking ring 201 is fixed to the sealing cover plate 103 and has grooves or protrusions on its side, which not only facilitates the alignment between adjacent stator segments 100, but also has a built-in reflective ring, which can be clearly identified even in low light conditions; the ear seat 202 and the positioning pin 203 achieve a stable connection between the stator segments 100, making the assembly process simple and quick, and can withstand large axial forces without loosening.

[0035] Its segmented design allows the motor length to be freely combined as needed, making it suitable for a variety of different occasions. The optimized heat dissipation structure effectively reduces the operating temperature and improves the stability and life of the motor. The strict sealing mechanism and intelligent pressure regulation function ensure that the motor can operate normally even in harsh environments. The design of standardized interfaces and service ports 105 simplifies daily maintenance and troubleshooting processes.

[0036] The specific steps for using the segmented cylindrical linear motor proposed in this technical solution are:

[0037] Preliminary preparation: Determine the number of stator segments 100 required based on actual usage and check whether all components are intact;

[0038] Initial assembly: Place the first stator segment 100 in the predetermined position, and add the other stator segments 100 in sequence. Before adding each segment, carefully confirm that the position of the marking ring 201 is correctly matched. Use the connecting assembly 200 to firmly connect the two adjacent segments, and ensure that the positioning pin 203 is fully inserted into the ear seat 202.

[0039] Final assembly: After the overall assembly is completed, a comprehensive inspection is carried out, especially the electrical connections and interfaces to check for leakage risks;

[0040] Debugging and trial operation: Before the first startup, a no-load test should be carried out, and the load should be gradually increased until the rated power is reached. During this period, the changes in various parameters should be closely monitored;

[0041] Routine maintenance: Check the internal condition regularly through the service port 105 and replace or repair corresponding parts using the waterproof plug 106 when necessary.

[0042] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A segmented cylindrical linear motor, characterized in that: It comprises at least two stator segments (100) arranged in an axial direction, wherein adjacent stator segments (100) are connected to each other via a connecting assembly (200); The stator segment (100) comprises a cylindrical shell (101), heat dissipation fins (102) evenly distributed on the outer wall surface of the cylindrical shell (101), a sealing cover (103) fixed to the end of the cylindrical shell (101), a pressure balancing valve (104) assembled on the sealing cover (103), a service port (105) provided on the side of the cylindrical shell (101), and a waterproof plug (106) embedded in the service port (105); The connection assembly (200) comprises a marking ring (201), an ear seat (202) integrally arranged on the circumference of the marking ring (201), and a positioning pin (203) connected to the ear seat (202).

2. A segmented cylindrical linear motor according to claim 1, characterized in that: The stator segment (100) further comprises a support foot (107), wherein the support foot (107) is fixed to the bottom of the cylindrical shell (101).

3. A segmented cylindrical linear motor according to claim 1, characterized in that: The heat dissipation ribs (102) are arranged in a wave pattern, and the heat dissipation ribs (102) are annular structures.

4. A segmented cylindrical linear motor according to claim 1, characterized in that: The sealing cover plate (103) is made of stainless steel, and the pressure balance valve (104) is a one-way vent valve that only allows gas to flow from the inside to the outside.

5. The segmented cylindrical linear motor according to claim 1, characterized in that: Grooves or protrusions are evenly arranged on the side of the marking ring (201), and the marking ring (201) is fixed to the sealing cover plate (103).

6. A segmented cylindrical linear motor according to claim 1, characterized in that: A reflective ring is embedded in the marking ring (201), and the marking rings (201) arranged opposite to each other are buckled together.

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