Contactor adjustment combination plug gauge structure
By designing a contactor adjustment combination feeler gauge structure and utilizing the different dimensional characteristics of multiple sets of U-shaped feeler gauge assemblies, precise positioning and synchronous adjustment of AC contactor contacts were achieved. This solved the problems of low adjustment accuracy and efficiency in existing technologies, ensuring the stability and safety of the electrical control system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД
- Filing Date
- 2025-10-11
- Publication Date
- 2026-07-21
AI Technical Summary
In the existing technology, the adjustment of contact overtravel and synchronization of AC contactors relies on the operator's experience, and the adjustment accuracy is difficult to guarantee and the operation is cumbersome.
Design a contactor adjustment combination feeler gauge structure, including a device frame and multiple sets of U-shaped feeler gauge assemblies. The feeler gauge assemblies have different thicknesses, widths, and heights, and are movably mounted on pins. It is suitable for AC contactors of different models and sizes. The precise positioning of the gap between the moving and stationary contacts can be achieved by adjusting the feeler gauge assemblies.
It improves the accuracy and efficiency of AC contactor contact overtravel and synchronization adjustment, simplifies the operation process, and ensures the stability and safety of the electrical control system.
Smart Images

Figure CN224534953U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical control equipment technology, and more specifically, it relates to a contactor adjustment combination feeler gauge structure. Background Technology
[0002] In electrical control systems, AC contactors are crucial electrical components, and their performance directly impacts system stability and safety. The CJ12 type contactor is widely used due to its compact structure and reliable performance. However, during use, the contactor's contact overtravel and synchronization require periodic adjustments to ensure good contact performance and extend its service life. Traditional adjustment methods rely on operator experience and feel, making it difficult to guarantee adjustment accuracy and are cumbersome to operate.
[0003] Existing technology includes a device for measuring and adjusting the contact stroke of a shift contactor, with publication number CN 206300585 U. This technology is applicable to shift contactors, such as those in railway electric switch machines. Its structure includes at least a panel, a mounting plate, and a micrometer fixed by a micrometer mounting bracket. The shift contactor is fixed to the mounting plate by a locating pin, and a ball bearing seat is located at the end of the shift contactor near the micrometer. The working principle involves measuring the contact stroke using the micrometer. When the contact stroke does not meet technical requirements, the contact position can be adjusted immediately. The technology emphasizes accurate measurement of the contact stroke and timely adjustment of the contact position to meet technical requirements.
[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a contactor adjustment combination feeler gauge structure that is simple in structure, can realize the overtravel and synchronization adjustment of AC contactor contacts, significantly improves the adjustment accuracy and efficiency, and is easy and quick to operate, in order to address the shortcomings of the existing technology.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model relates to a contactor adjustment combination feeler gauge structure. A pin is set on the device frame, and multiple sets of feeler gauge components are movably mounted on the pin. Each set of feeler gauge components has a U-shaped structure. Each set of feeler gauge components includes a large end and a small end. The thickness of the large end of each set of feeler gauge components is different, the thickness of the small end of each set of feeler gauge components is different, and the thickness of the large end and the small end of each set of feeler gauge components is different.
[0007] The feeler gauge assembly includes a left component and a right component. The width dimensions of the left and right components of the multiple feeler gauge assemblies are different. The distance between the outer sides of the left and right components of the inner feeler gauge assembly is smaller than the distance between the inner sides of the left and right components of the outer feeler gauge assembly.
[0008] The left and right components of multiple feeler gauge assemblies have different height dimensions. The height dimensions of the left and right components of the feeler gauge assembly located on the inside are smaller than the height dimensions of the inner surfaces of the left and right components of the feeler gauge assembly located on the outside.
[0009] When multiple feeler gauge assemblies are movably mounted on the pin, the openings at the upper ends of the left and right components of each feeler gauge assembly are movably mounted on the pin.
[0010] When multiple feeler gauge assemblies are movably mounted on the pin shaft, the multiple feeler gauge assemblies are arranged from the inside to the outside according to the gap. The left side of the component of another feeler gauge assembly is set outside the component of the left side of each feeler gauge assembly, and the right side of the component of another feeler gauge assembly is set outside the component of the right side of each feeler gauge assembly.
[0011] The thickness, height, and width of the left and right components of each feeler gauge assembly are equal.
[0012] The feeler gauge assembly includes a first feeler gauge assembly, a second feeler gauge assembly, a third feeler gauge assembly, a fourth feeler gauge assembly, and a fifth feeler gauge assembly.
[0013] The device frame has a square structure, with the lower part of the device frame located between two adjacent sets of feeler gauge assemblies, and gaps are provided between the lower part of the device frame and the two adjacent sets of feeler gauge assemblies.
[0014] A limiting nut is screwed onto the threaded portion at the end of the pin.
[0015] The contactor adjustment combination feeler gauge structure also includes a wedge-shaped feeler block.
[0016] The working principle and beneficial effects of this utility model are as follows: The contactor adjustment combination feeler gauge structure described in this utility model features a frame as the foundation of the entire device, facilitating the installation of a pin. This pin is used to movably mount multiple sets of feeler gauge assemblies of different models and sizes. These multiple sets of feeler gauge assemblies are movably mounted on the pin, each set being U-shaped. To reduce the overall size of the device, the multiple sets of feeler gauge assemblies are systematically mounted on the pin. Specifically, the multiple sets of feeler gauge assemblies are designed with different sizes, arranged from the inside out with appropriate gaps. Each set can rotate independently relative to the pin without interfering with each other. Each feeler gauge assembly includes a large end and a small end. The large end is used to movably connect to the pin, while the small end is used to adjust the gap between the moving magnet and the stationary magnet of the AC contactor. The moving magnet is movable, while the stationary magnet is fixed. The moving magnet is connected to multiple moving contacts, and the moving magnet and moving contacts operate synchronously. The stationary contacts are fixed, with each moving contact corresponding to one stationary contact. After the gap between the moving magnet and the stationary magnet is adjusted to the correct position, the gap between the moving contact and the stationary contact is simultaneously adjusted to the correct position. Each feeler gauge assembly has a different thickness for its large and small ends, allowing different feeler gauge assemblies to be used for different models and sizes of AC contactors. This way, one device can be used for multiple models and sizes of AC contactors. Specifically, to adjust the magnet gap between the moving and stationary magnets for different contactors, simply select a feeler gauge assembly of appropriate thickness. Insert the selected feeler gauge assembly between the moving and stationary magnets, and then attach the device frame to the mounting frame of the moving and stationary magnets, indicating that the feeler gauge assembly is properly inserted. With the moving contact and moving magnet fixedly connected, and the stationary contact and stationary magnet fixedly connected, the relative distance between the moving and stationary contacts is controlled once the magnet gap is adjusted to the correct position. When each feeler gauge assembly is inserted between the moving and stationary magnets of its corresponding contactor model, the moving and stationary contacts are just touching, indicating that their state is properly adjusted. Then, tighten the bolts on the moving contact to fix it, thus completing the adjustment. The structure of this invention enables precise positioning and adjustment of the moving and stationary contacts, greatly improving the accuracy and efficiency of the adjustment. It effectively solves the problems of overtravel and synchronization difficulties in existing AC contactor adjustments, ensuring the stability and safety of the electrical control system. Attached Figure Description
[0017] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein: Figure 1 This is a schematic diagram of the contactor adjustment combination feeler gauge structure described in this utility model; Figure 2 This is a schematic diagram of the main structure of the contactor adjustment combination feeler gauge structure described in this utility model; Figure 3This is a side view of the contactor adjustment combination feeler gauge structure described in this utility model. Figure 4 This is a partial structural diagram showing the arrangement of the moving magnet and stationary magnet of the contactor described in this utility model; The labels in the attached diagram are as follows: 1. Device frame; 2. Pin; 3. Feeler gauge assembly; 4. Large end of assembly; 5. Small end of assembly; 6. Left side assembly; 7. Right side assembly; 8. First feeler gauge assembly; 9. Second feeler gauge assembly; 10. Third feeler gauge assembly; 11. Fourth feeler gauge assembly; 12. Fifth feeler gauge assembly; 13. Limiting nut; 14. Wedge-shaped stop; 15. Moving magnet; 16. Stationary magnet; 17. Stop end; 18. Magnet gap. Detailed Implementation
[0018] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part: As attached Figure 1 -Appendix Figure 4As shown, this utility model is a contactor adjustment combination feeler gauge structure. A pin 2 is mounted on the device frame 1, and multiple sets of feeler gauge assemblies 3 are movably mounted on the pin 2. Each set of feeler gauge assemblies 3 has a U-shaped structure and includes a large end 4 and a small end 5. The thicknesses of the large end 4, small end 5, and both the large and small ends of each set of feeler gauge assemblies 3 are different. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In this structural design, the device frame 1 serves as the foundation of the entire device, facilitating the installation of the pin 2. The pin 2 is used to movably mount multiple sets of feeler gauge assemblies of different models and sizes. The multiple sets of feeler gauge assemblies 3 are movably mounted on the pin 2, and each set is U-shaped. To reduce the overall size of the device, the multiple sets of feeler gauge assemblies 3 are mounted on the pin 2 in a regular pattern. Specifically, multiple feeler gauge assemblies 3 are configured with different sizes and arranged from the inside out according to their gaps. Each set of feeler gauge assemblies 3 can rotate independently relative to the pin 2 without interfering with each other. Each set of feeler gauge assemblies 3 includes a large end 4 and a small end 5. The large end 4 is used to movably connect to the pin, and the small end 5 is used to adjust the magnet gap 18 between the moving magnet 15 and the stationary magnet 16 of the AC contactor. The moving magnet 15 can be moved, while the stationary magnet 16 is fixed. The moving magnet 15 is connected to multiple moving contacts, and the moving magnet 15 and the moving contacts move synchronously. The stationary contacts are fixed, and each moving contact corresponds to one stationary contact. After the gap between the moving magnet 15 and the stationary magnet 16 is adjusted to the correct position, the gap between the moving contacts and the stationary contacts is also adjusted synchronously. The thickness of the large end 4 and the small end 5 of each set of feeler gauge assemblies 3 is set to different dimensions, so different feeler gauge assemblies are used for different models and sizes of AC contactors. In this way, one device can be used for multiple models and sizes of AC contactors. Specifically, to adjust the magnet gap 18 between the moving magnet 15 and the stationary magnet 16 of different contactors, simply select a feeler gauge assembly of appropriate thickness. Insert the selected feeler gauge assembly between the moving magnet 15 and the stationary magnet 16, and then attach the device frame 1 to the mounting frame of the moving and stationary magnets, indicating that the feeler gauge assembly is properly inserted. The moving contact and the moving magnet 15 are fixedly connected, and the stationary contact and the stationary magnet 16 are fixedly connected. After controlling the gap between the moving magnet 15 and the stationary magnet 16, the relative distance between the moving and stationary contacts is controlled. When each feeler gauge assembly 3 is inserted into the magnet gap between the moving magnet 15 and the stationary magnet 16 of the corresponding contactor model, the moving magnet 15 and the stationary magnet 16 are respectively attached to the feeler gauge assembly 3. At this point, the moving and stationary contacts are just touching, indicating that their state is properly adjusted. Then, tighten the bolt of the moving contact to fix it, thus completing the contactor adjustment.The structure of this invention enables precise positioning and adjustment of the moving and stationary contacts, thereby greatly improving the accuracy and efficiency of adjustment. It effectively solves the problems of difficult overtravel and synchronization adjustment of AC contactors in existing technologies, ensuring the stability and safety of the electrical control system. The contactor adjustment combination feeler gauge structure described in this invention is simple in structure, capable of achieving overtravel and synchronization adjustment of AC contactors, significantly improving adjustment accuracy and efficiency, while also being easy and quick to operate.
[0019] The feeler gauge assembly 3 includes a left-side assembly 6 and a right-side assembly 7. The widths of the left-side assembly 6 and right-side assembly 7 in the multiple sets of feeler gauge assemblies 3 are different. The distance between the outer surfaces of the left-side assembly 6 and right-side assembly 7 of the inner feeler gauge assembly 3 is smaller than the distance between the inner surfaces of the left-side assembly 6 and right-side assembly 7 of the outer feeler gauge assembly 3. The heights of the left-side assembly 6 and right-side assembly 7 in the multiple sets of feeler gauge assemblies 3 are also different. The height of the left-side assembly 6 and right-side assembly 7 of the inner feeler gauge assembly 3 is smaller than the height of the inner surfaces of the left-side assembly 6 and right-side assembly 7 of the outer feeler gauge assembly 3. With this structure, multiple sets of feeler gauge assemblies 3 are provided, each of which can be used independently without interfering with each other. Each set of feeler gauge assemblies 3 corresponds to a specific AC adapter model. The appropriate feeler gauge assembly can be flexibly selected during specific use, allowing the device of this invention to effectively meet the needs of various AC adapter models.
[0020] When multiple feeler gauge assemblies 3 are movably mounted on the pin 2, the openings at the upper ends of the left component 6 and the right component 7 of each feeler gauge assembly 3 are movably mounted on the pin 2. In this structure, the feeler gauge assemblies are movably connected to the pin, allowing for flexible rotation.
[0021] When multiple feeler gauge assemblies 3 are movably mounted on the pin 2, the multiple feeler gauge assemblies 3 are arranged from the inside out with gaps. The left component 6 of one set of feeler gauge assemblies 3 is located outside the left component 6 of another set of feeler gauge assemblies 3, and the right component 7 of one set of feeler gauge assemblies 3 is located outside the right component 7 of another set of feeler gauge assemblies 3. The thickness, height, and width of the left component 6 and right component 7 of each set of feeler gauge assemblies 3 are equal.
[0022] The feeler gauge assembly 3 includes a first feeler gauge assembly 8, a second feeler gauge assembly 9, a third feeler gauge assembly 10, a fourth feeler gauge assembly 11, and a fifth feeler gauge assembly 12. This structure includes five types of feeler gauge assemblies, each corresponding to one of the five contactor models: CJ12-100A, CJ12-150A, CJ12-250A, CJ12-400A, and CJ12-600A, to meet various usage requirements. The number of feeler gauge assemblies can be increased or decreased accordingly when the number of contactor models increases or decreases.
[0023] The device frame 1 has a square structure, with its lower part positioned between two adjacent sets of feeler gauge assemblies 3. Gaps are provided between the lower part of the device frame 1 and between the two adjacent sets of feeler gauge assemblies 3. With this structure, the device frame and the different feeler gauge assemblies will not interfere with each other.
[0024] A limiting nut 13 is screwed onto the threaded portion at the end of the pin 2. With this structure, after the limiting nut 13 is screwed on, the device frame and multiple feeler gauge assemblies at both ends will not detach.
[0025] The contactor adjustment assembly feeler gauge structure also includes a wedge-shaped stopper 14. In this structure, the wedge-shaped stopper is required during use. When installing the moving magnet and the stationary magnet, a stop is also installed on their bases. The stop prevents the moving magnet from moving too far outward, thus preventing reliable adhesion with the stationary magnet. The end of the stop is located outside the moving magnet; therefore, when adjusting the gap between the moving and stationary magnets, the wedge-shaped stopper 14 needs to be inserted between the moving magnet and the end of the stop to ensure reliable contact between the moving magnet and the corresponding feeler gauge assembly. Then, the moving contact is adjusted to achieve the desired gap adjustment.
[0026] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A contactor adjustment combination feeler gauge structure, characterized in that: A pin (2) is set on the device frame (1), and multiple sets of feeler gauge components (3) are movably mounted on the pin (2). Each set of feeler gauge components (3) has a U-shaped structure. Each set of feeler gauge components (3) includes a large end (4) and a small end (5). The thickness of the large end (4) of each set of feeler gauge components (3) is different. The thickness of the small end (5) of each set of feeler gauge components (3) is different. The thickness of the large end (4) and the small end (5) of each set of feeler gauge components (3) is different.
2. The contactor adjustment combination feeler gauge structure according to claim 1, characterized in that: The feeler gauge assembly (3) includes a left component (6) and a right component (7). The width dimensions of the left component (6) and the right component (7) of the multiple sets of feeler gauge assemblies (3) are different. The distance between the outer side of the left component (6) and the outer side of the right component (7) of the feeler gauge assembly (3) located on the inner side is smaller than the distance between the inner side of the left component (6) and the inner side of the right component (7) of the feeler gauge assembly (3) located on the outer side.
3. The contactor adjustment combination feeler gauge structure according to claim 2, characterized in that: The height dimensions of the left component (6) and the right component (7) of the multiple feeler gauge assemblies (3) are different. The height dimensions of the left component (6) and the right component (7) of the feeler gauge assembly (3) located on the inside are smaller than the height dimensions of the inner side of the left component (6) and the right component (7) of the feeler gauge assembly (3) located on the outside.
4. The contactor adjustment combination feeler gauge structure according to claim 3, characterized in that: When multiple feeler gauge components (3) are movably mounted on the pin (2), the openings at the upper end of the left component (6) and the upper end of the right component (7) of each feeler gauge component (3) are movably mounted on the pin (2).
5. The contactor adjustment combination feeler gauge structure according to claim 3, characterized in that: When multiple feeler gauge components (3) are movably mounted on the pin (2), the multiple feeler gauge components (3) are arranged from the inside to the outside with gaps. The left component (6) of another feeler gauge component (3) is set outside the left component (6) of each feeler gauge component (3), and the right component (7) of another feeler gauge component (3) is set outside the right component (7) of each feeler gauge component (3).
6. The contactor adjustment combination feeler gauge structure according to claim 2 or 3, characterized in that: The thickness, height, and width of the left component (6) and right component (7) of each feeler gauge assembly (3) are equal.
7. The contactor adjustment combination feeler gauge structure according to claim 1 or 2, characterized in that: The feeler gauge assembly (3) includes a first feeler gauge assembly (8), a second feeler gauge assembly (9), a third feeler gauge assembly (10), a fourth feeler gauge assembly (11), and a fifth feeler gauge assembly (12).
8. The contactor adjustment combination feeler gauge structure according to claim 1 or 2, characterized in that: The device frame (1) is a square structure. The lower part of the device frame (1) is located between two adjacent sets of feeler gauge assemblies (3). A gap is provided between the lower part of the device frame (1) and the two adjacent sets of feeler gauge assemblies (3).
9. The contactor adjustment combination feeler gauge structure according to claim 1 or 2, characterized in that: A limiting nut (13) is screwed onto the threaded part at the end of the pin (2).
10. The contactor adjustment combination feeler gauge structure according to claim 1 or 2, characterized in that: The contactor adjustment combination feeler gauge structure also includes a wedge-shaped feeler block (14).