Electromagnetic actuator with good operating state monitoring performance

Abstract

The utility model discloses an electromagnetic actuator that good operating state monitoring performance, including shell, electromagnetic coil subassembly, drive sleeve and ring cover, electromagnetic coil subassembly is inlayed in the inside cavity of shell, ring cover is fixed on the right port of shell, drive sleeve coaxial sliding is connected in the central hole inside of shell, electromagnetic coil subassembly and ring cover three, drive sleeve inside coaxial plug -in installation has position monitoring sleeve, and position monitoring sleeve has the L shape support of extending protruding to its right side outside, and the L shape support end installs permanent magnet, and the outside of shell has the position sensor assembly corresponding with permanent magnet. Position sensor assembly is integrated on the shell, and drive sleeve corresponds and integrates permanent magnet, and when permanent magnet moves synchronously with drive sleeve, position sensor assembly will transfer the permanent magnet position information sensed to control system in real time, realizes real -time accurate monitoring to drive sleeve axial displacement and position state, and compact and reasonable structure design is also applicable in the narrow environment.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic actuator technology, specifically to an electromagnetic actuator with good performance in monitoring operating status. Background Technology

[0002] An electromagnetic clutch is a friction clutch that uses electromagnetic force for remote control. It relies on the switching of an energized coil to control the clutch's engagement and disengagement, and is widely used in machine tools and mechanical transmission systems. Its working principle is based on electromagnetic induction and friction, enabling functions such as rapid starting, braking, forward and reverse rotation, or speed regulation of mechanical transmission components. The engagement and disengagement of the electromagnetic clutch are controlled by an electromagnetic actuator.

[0003] Electromagnetic actuators are a special type of actuator that precisely and rapidly controls the magnitude and direction of the electromagnetic field by controlling the current in a coil, thereby achieving precise control over the position of a target object. Traditional electromagnetic actuators typically require a separate position sensor to monitor the actuator's operating status and the position of the drive sleeve. This structural design necessitates additional installation space and connecting components to accommodate the position sensor, increasing the complexity, manufacturing cost, and overall size of the electromagnetic actuator. The large overall size of the electromagnetic actuator also leads to a large electromagnetic clutch, making it unsuitable for applications with limited space. Therefore, this invention proposes an electromagnetic actuator with superior operational status monitoring performance to address the aforementioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an electromagnetic actuator with good operational status monitoring performance. By integrating a position sensor assembly into the housing and integrating a corresponding permanent magnet into the drive sleeve, the position sensor assembly transmits the position information of the permanent magnet to the control system in real time when the permanent magnet moves synchronously with the drive sleeve, thereby achieving real-time and accurate monitoring of the axial displacement and position status of the drive sleeve. The overall structure is compact and reasonable. Compared with the structure design of separately installing the position sensor on the outside of the electromagnetic actuator, it saves additional installation space and connecting parts, greatly simplifies the installation structure, effectively reduces the materials used, manufacturing costs and overall size of the electromagnetic actuator, while reducing the risk of failure and improving overall reliability. This allows the electromagnetic actuator with good operational status monitoring performance of this invention to be used in confined environments.

[0005] To achieve the above objectives, the technical solution of this utility model is to design an electromagnetic actuator with good operating status monitoring performance, including a housing, an electromagnetic coil assembly, a drive sleeve, and an annular cover. The electromagnetic coil assembly is embedded in the internal cavity of the housing, and the annular cover is fixed to the right port of the housing. The drive sleeve is coaxially and slidably connected to the central hole of the housing, the electromagnetic coil assembly, and the annular cover. A position monitoring sleeve is coaxially inserted and installed inside the drive sleeve. The position monitoring sleeve has an L-shaped bracket extending and protruding to its right side. A permanent magnet is installed at the end of the L-shaped bracket. A position sensor assembly corresponding to the permanent magnet is located outside the housing.

[0006] This invention provides an electromagnetic actuator with excellent operational status monitoring performance. It integrates a position sensor assembly onto the housing, while a corresponding permanent magnet is integrated into the drive sleeve. As the permanent magnet moves synchronously with the drive sleeve, the position sensor assembly transmits the detected position information to the control system in real time, enabling real-time and accurate monitoring of the drive sleeve's axial displacement and position status. The overall structure is compact and rationally designed. Compared to a separate external position sensor design, this eliminates the need for additional installation space and connecting components, significantly simplifying the installation structure. It effectively reduces the materials used, manufacturing costs, and overall size of the electromagnetic actuator, while also lowering the risk of failure and improving overall reliability. This allows the electromagnetic actuator with excellent operational status monitoring performance to be used even in confined spaces.

[0007] A preferred technical solution is that the electromagnetic coil assembly includes a winding and a plastic coating layer covering the outside of the winding. A protrusion with a position monitoring sensor is integrally formed on the outer peripheral side of the plastic coating layer. The left end of the protrusion has a plug groove extending to the outside of the left side of the housing. The winding has a first plug pin that is plastic coated by the protrusion and extends into the plug groove. The position monitoring sensor has a second plug pin that extends into the plug groove.

[0008] The outer peripheral wall of the outer shell has a notch groove one, and the outer peripheral edge of the annular cover has a notch groove two corresponding to notch groove one. The protrusion is located at one of the notches grooves, and the right end of the protrusion extends through notch groove two to the outside of the right side of the annular cover. The right end of the protrusion has an opening groove one facing downwards and to the right. The position monitoring sensor is plastic-coated and located at the top of the opening groove one. The electromagnetic coil assembly has a clever and reasonable structural design. The position monitoring sensor is integrally plastic-coated inside the protrusion on the outer peripheral side of the plastic coating layer. The first plug pin connected to the electromagnetic coil and the second plug pin connected to the position monitoring sensor both extend into the plug groove, which facilitates plug-in connection with the control system during use and ensures convenient plug-in connection during use.

[0009] A preferred technical solution further includes an electromagnetic coil assembly comprising a coil frame and a winding wound around the outer periphery of the coil frame. The annular cover has a notch / groove on its outer periphery, and a lead-out component connected to the winding extends through the notch / groove to the outer right side of the annular cover. The position sensor assembly includes a "7"-shaped bracket. A position monitoring sensor is installed inside the horizontal section of the "7"-shaped bracket, and an opening / groove through both the left and right ends of the vertical section of the "7"-shaped bracket. The horizontal section of the "7"-shaped bracket is overlapped and fixed to the outer periphery of the outer shell, and the vertical section of the "7"-shaped bracket is located correspondingly on the right side of the annular cover. The permanent magnet is inserted into the opening / groove. The position sensor assembly has a clever and reasonable structural design, and the "7"-shaped bracket is easily fixed to the outer shell and annular cover, ensuring the successful fabrication and implementation of the electromagnetic actuator with good operational status monitoring performance.

[0010] A further preferred technical solution includes a lug with mounting holes on the horizontal section of the "7"-shaped bracket, and a lug with mounting holes on the vertical section of the "7"-shaped bracket. The horizontal section of the "7"-shaped bracket is fixed to the outer circumference of the outer shell by screws passing through the mounting holes in the lugs. The vertical section of the "7"-shaped bracket is fixed to the right side of the annular cover by screws passing through the mounting holes in the lugs. The "7"-shaped bracket is fixed to the outer shell and the annular cover by screws, which is a simple and stable installation method.

[0011] A further preferred technical solution is that the end of the output component has a plug. When the electromagnetic actuator of this invention, with its good operational status monitoring performance, is installed and used, the plug at the end of the output component can be quickly plugged into and matched with electrical components, and it has good adaptability.

[0012] A further preferred technical solution includes a support sleeve. A bushing extending into the internal cavity of the outer shell is fixedly mounted on the left side of the annular cover. The left end of the inner circumferential side of the bushing has a second annular stepped groove. The right end of the support sleeve is interference-fitted into the second annular stepped groove, and the inner circumferential side of the support sleeve is flush with the inner circumferential side of the right end of the bushing. Corresponding oil guide grooves are formed on the inner circumferential side of the support sleeve and the inner circumferential side of the right end of the bushing. The drive sleeve is coaxially slidably inserted into the cavities inside the bushing and the support sleeve. The right end of the electromagnetic coil assembly is sleeved and fixed to the bushing. The support sleeve is interference-fitted into the bushing on the annular cover, and the inner side of the support sleeve is clearance-fitted with the outer side of the drive sleeve, which helps improve the stability of the drive sleeve when moving at its extreme left and right ends. The oil guide grooves are filled with lubricating oil, ensuring the smooth sliding of the drive sleeve within the cavities of the annular cover and the support sleeve.

[0013] A further preferred technical solution includes an annular stepped groove on the right end of the inner circumferential side of the drive sleeve, an annular groove on the right end of the inner circumferential side of the drive sleeve, and an annular eave on the left end of the outer circumferential side of the drive sleeve. The position monitoring sleeve is inserted and installed inside the annular stepped groove, with its left edge abutting against the left bottom surface of the annular stepped groove. A retaining ring for limiting the abutment against the right edge of the position monitoring sleeve is embedded inside the annular groove, and the left edge of the support sleeve abuts against the annular eave. The position monitoring sleeve is axially limited and engaged between the left bottom surface of the annular stepped groove and the retaining ring, and the support sleeve is axially limited and engaged between the annular eave and the right bottom surface of the annular stepped groove, ensuring good installation stability of both the position monitoring sleeve and the support sleeve and effectively preventing axial movement. This further ensures the accuracy and durability of the electromagnetic actuator of this invention in monitoring the axial displacement and position status of the drive sleeve.

[0014] A further preferred technical solution includes a plurality of ear plates extending and protruding to the outside of the outer casing at intervals along the outer periphery of the annular cover, and each ear plate having mounting holes penetrating the plate body. In use, it is fixed to the gearbox housing by screws inserted into the mounting holes on the ear plates, resulting in a simple and secure installation method.

[0015] The advantages and beneficial effects of this utility model are as follows:

[0016] 1. This utility model discloses an electromagnetic actuator with good operating status monitoring performance. By integrating a position sensor assembly into the housing and integrating a permanent magnet corresponding to the position sensor assembly into the drive sleeve, the position sensor assembly transmits the position information of the permanent magnet to the control system in real time when the permanent magnet moves synchronously with the drive sleeve, realizing real-time and accurate monitoring of the axial displacement and position status of the drive sleeve. The overall structure design is compact and reasonable. Compared with the structure design of installing the position sensor separately outside the electromagnetic actuator, it saves additional installation space and connecting parts, greatly simplifies the installation structure, effectively reduces the materials used, manufacturing costs and overall volume of the electromagnetic actuator, while reducing the risk of failure and improving overall reliability. This allows the electromagnetic actuator with good operating status monitoring performance of this utility model to be used in confined environments.

[0017] 2. The electromagnetic coil assembly has a clever and reasonable structural design. The position monitoring sensor is integrated into the protrusion on the outer periphery of the plastic coating layer. The first plug-in, which connects to the electromagnetic coil, and the second plug-in, which connects to the position monitoring sensor, both extend into the plug-in slot. This facilitates connection with the control system and ensures convenient connection during use.

[0018] 3. The position sensor component has a clever and reasonable structural design. The “7” shaped bracket is easy to fix and install on the outer shell and the ring cover, which ensures that the electromagnetic actuator with good operating status monitoring performance of this utility model can be successfully prepared and implemented.

[0019] 4. The bushing on the annular cover is fitted with a support sleeve through an interference fit. The inner side of the support sleeve is clearance-fitted with the outer side of the drive sleeve, which helps to improve the stability of the drive sleeve when it moves at the extreme positions at both ends. The oil guide groove is filled with lubricating oil to ensure the smooth sliding of the drive sleeve in the internal cavity of the annular cover and the support sleeve.

[0020] 5. The axial limiting clamp of the position monitoring sleeve is engaged between the left bottom surface of the first annular stepped groove and the retaining ring, and the axial limiting clamp of the support sleeve is engaged between the right bottom surface of the annular eaves and the second annular stepped groove. This ensures that the position monitoring sleeve and the support sleeve are firmly installed and effectively prevents axial movement between them. This further ensures that the electromagnetic actuator of this utility model has good accuracy and durability in monitoring the axial displacement and position status of the drive sleeve. Attached Figure Description

[0021] Figure 1 This is a left-side perspective perspective view of an electromagnetic actuator with good operating status monitoring performance in Example 1;

[0022] Figure 2 This is a perspective view from the right end of an electromagnetic actuator with good operating status monitoring performance in Example 1;

[0023] Figure 3 This is an exploded view of an electromagnetic actuator with good operating status monitoring performance in Example 1;

[0024] Figure 4 This is a longitudinal sectional view of an electromagnetic actuator with good operating status monitoring performance in Example 1;

[0025] Figure 5 yes Figure 4 Enlarged view of a section at point H;

[0026] Figure 6 This is a perspective view from the right end of the assembly relationship between the outer shell and the annular cover in Example 1;

[0027] Figure 7 This is a three-dimensional view of the right end of the plastic coating layer;

[0028] Figure 8 It is a 3D diagram of the winding;

[0029] Figure 9 It is a 3D view of the location monitoring kit;

[0030] Figure 10 It is a 3D diagram showing the assembly relationship between the support sleeve and the annular cover.

[0031] Figure 11 This is a 3D view of the front right side of the drive unit;

[0032] Figure 12 This is a right-side perspective perspective view of an electromagnetic actuator with good operating status monitoring performance in Example 2;

[0033] Figure 13 This is an exploded view of an electromagnetic actuator with good operating status monitoring performance in Example 2;

[0034] Figure 14 This is a longitudinal sectional view of an electromagnetic actuator with good operating status monitoring performance in Example 2;

[0035] Figure 15 yes Figure 14 A magnified view of a section at point S in the middle;

[0036] Figure 16 This is a perspective view of the position sensor assembly in Embodiment 2.

[0037] In the diagram: 1. Outer shell; 2. Electromagnetic coil assembly; 3. Drive sleeve; 4. Support sleeve; 5. Annular cover; 6. Position monitoring sleeve; 7. Retaining ring; 8. Oil guide groove; 9. "7" shaped bracket; 1-1. Notch slot one; 2-1. Winding; 2-1a. Plug pin one; 2-2. Plastic coating layer; 2-2a. Protrusion; 2-2b. Plug slot; 2-2c. Opening slot one; 2-3. Position monitoring sensor; 2-3a. Plug pin two; 2-4. Outgoing wire assembly; 2-4a. Plug; 2-5. Coil frame; 3-1. Annular stepped groove one; 3-2. Annular eaves; 3-3. Annular groove; 5-1. Notch slot two; 5-2. Ear plate; 5-3. Bushing; 6-1. L-shaped bracket; 6-2. Permanent magnet; 9-1. Opening slot two; 9-2. Ear block one; 9-3. Ear block two. Detailed Implementation

[0038] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0039] Example 1

[0040] like Figures 1-11As shown, an electromagnetic actuator with good operating status monitoring performance includes a housing 1, an electromagnetic coil assembly 2, a drive sleeve 3, and an annular cover 5. The electromagnetic coil assembly 2 is embedded in the internal cavity of the housing 1. The annular cover 5 is fixed to the right port of the housing 1. The drive sleeve 3 is coaxially slidably connected to the central hole of the housing 1, the electromagnetic coil assembly 2, and the annular cover 5. A position monitoring sleeve 6 is coaxially inserted and installed inside the drive sleeve 3. The position monitoring sleeve 6 has an L-shaped bracket 6-1 extending and protruding to its right side. A permanent magnet 6-2 is installed at the end of the L-shaped bracket 6-1. The housing 1 has a position sensor assembly corresponding to the permanent magnet 6-2 on its exterior.

[0041] Preferably, the electromagnetic coil assembly 2 includes a winding 2-1 and a plastic coating layer 2-2 covering the outside of the winding 2-1. A protrusion 2-2a with a position monitoring sensor 2-3 coated in plastic is integrally formed on the outer peripheral side of the plastic coating layer 2-2. The left end of the protrusion 2-2a has a plug groove 2-2b extending to the outside of the left side of the outer shell 1. The winding 2-1 has a first plug pin 2-1a that is coated by the protrusion 2-2a and extends into the plug groove 2-2b. The position monitoring sensor 2-3 has a second plug pin 2-3a that extends into the plug groove 2-2b.

[0042] The outer wall of the outer shell 1 has a notch 1-1, and the outer periphery of the annular cover 5 has a notch 2-1 corresponding to the notch 1-1. The protrusion 2-2a is located at the notch 1-1. The right end of the protrusion 2-2a extends to the outside of the right side of the annular cover 5 through the notch 2-1. The right end of the protrusion 2-2a has an opening slot 2-2c with the opening facing downward and to the right. The position monitoring sensor 2-3 is plastic-coated and located at the top of the opening slot 2-2c.

[0043] More preferably, it also includes a support sleeve 4. A bushing 5-3 extending into the inner cavity of the outer shell 1 is fixedly provided on the left side of the annular cover 5. The left end of the inner circumferential side of the bushing 5-3 has an annular stepped groove II. The right end of the support sleeve 4 is interference-fitted into the annular stepped groove II. The inner circumferential side of the support sleeve 4 is flush with the inner circumferential side of the right end of the bushing 5-3. Corresponding oil guide grooves 8 are provided on the inner circumferential side of the support sleeve 4 and the inner circumferential side of the right end of the bushing 5-3. The drive sleeve 3 is coaxially slidably connected to the cavity inside the bushing 5-3 and the support sleeve 4. The right end of the electromagnetic coil assembly 2 is sleeved and fixed on the bushing 5-3.

[0044] More preferably, the right end of the inner circumferential side of the drive sleeve 3 has an annular stepped groove 3-1, the right end of the inner circumferential side of the drive sleeve 3 has an annular groove 3-3, the left end of the outer circumferential side of the drive sleeve 3 has an annular eave 3-2, the position monitoring sleeve 6 is inserted and installed inside the annular stepped groove 3-1, the left edge of the position monitoring sleeve 6 abuts against the left bottom surface of the annular stepped groove 3-1, the annular groove 3-3 is fitted with a retaining ring 7 for limiting the abutment against the right edge of the position monitoring sleeve 6, and the left edge of the support sleeve 4 abuts against the annular eave 3-2.

[0045] More preferably, the annular cover 5 has a plurality of ear plates 5-2 extending and protruding to the outside of the outer shell 1 at circumferential intervals on its outer periphery, and the ear plates 5-2 have mounting holes that penetrate the plate.

[0046] Example 2

[0047] like Figures 12-16 As shown, an electromagnetic actuator with good operating status monitoring performance differs from the electromagnetic actuator with good operating status monitoring performance in Embodiment 1 in that: the electromagnetic coil assembly 2 includes a coil frame 2-5 and a winding 2-1 wound around the outer periphery of the coil frame 2-5; the outer periphery of the annular cover 5 has a notch 5-1; the lead-out assembly 2-4 connected to the winding 2-1 extends to the outside right side of the annular cover 5 through the notch 5-1; the position sensor assembly includes a “7”-shaped bracket 9; a position monitoring sensor 2-3 is installed inside the horizontal section of the “7”-shaped bracket 9; the vertical section of the “7”-shaped bracket 9 has an opening slot 9-1 that passes through both the left and right ends; the horizontal section of the “7”-shaped bracket 9 is overlapped and fixed on the outer periphery of the outer shell 1; and the vertical section of the “7”-shaped bracket 9 is located on the right side of the annular cover 5; the permanent magnet 6-2 is inserted into the opening slot 9-1.

[0048] Preferably, the horizontal section of the “7”-shaped bracket 9 has an ear block 9-2 with a mounting hole, and the vertical section of the “7”-shaped bracket 9 has an ear block 9-3 with a mounting hole. The horizontal section of the “7”-shaped bracket 9 is fixedly installed on the outer peripheral surface of the outer shell 1 by screws passing through the mounting holes of the ear block 9-2, and the vertical section of the “7”-shaped bracket 9 is fixedly installed on the right side of the annular cover 5 by screws passing through the mounting holes of the ear block 9-3.

[0049] More preferably, the outlet assembly 2-4 has a plug 2-4a at its end.

[0050] This invention provides an electromagnetic actuator with excellent operational status monitoring performance. It integrates a position sensor assembly onto the housing, while a corresponding permanent magnet is integrated into the drive sleeve. As the permanent magnet moves synchronously with the drive sleeve, the position sensor assembly transmits the detected position information to the control system in real time, enabling real-time and accurate monitoring of the drive sleeve's axial displacement and position status. The overall structure is compact and rationally designed. Compared to a separate external position sensor design, this eliminates the need for additional installation space and connecting components, significantly simplifying the installation structure. It effectively reduces the materials used, manufacturing costs, and overall size of the electromagnetic actuator, while also lowering the risk of failure and improving overall reliability. This allows the electromagnetic actuator with excellent operational status monitoring performance to be used even in confined spaces.

[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An electromagnetic actuator with good operating status monitoring performance, comprising a housing (1), an electromagnetic coil assembly (2), a drive sleeve (3), and an annular cover (5), wherein the electromagnetic coil assembly (2) is embedded in the internal cavity of the housing (1), the annular cover (5) is fixed to the right port of the housing (1), and the drive sleeve (3) is coaxially and slidably connected to the central hole of the housing (1), the electromagnetic coil assembly (2), and the annular cover (5), characterized in that, The drive sleeve (3) is coaxially installed with a position monitoring sleeve (6). The position monitoring sleeve (6) has an L-shaped bracket (6-1) extending out to its right side. A permanent magnet (6-2) is installed at the end of the L-shaped bracket (6-1). The outer shell (1) has a position sensor assembly corresponding to the permanent magnet (6-2).

2. The electromagnetic actuator with good performance of operation state monitoring according to claim 1, characterized in that, The electromagnetic coil assembly (2) includes a winding (2-1) and a plastic coating layer (2-2) covering the outside of the winding (2-1). A protrusion (2-2a) with a position monitoring sensor (2-3) plastically coated is integrally formed on the outer peripheral side of the plastic coating layer (2-2). The left end of the protrusion (2-2a) has a plug groove (2-2b) extending out to the left side of the outer shell (1). The winding (2-1) has a first plug pin (2-1a) that is plastically coated by the protrusion (2-2a) and extends into the plug groove (2-2b). The position monitoring sensor (2-3) has a second plug pin (2-3a) that extends into the plug groove (2-2b). The outer wall of the outer shell (1) has a notch groove one (1-1), and the outer periphery of the annular cover (5) has a notch groove two (5-1) corresponding to the notch groove one (1-1). The protrusion (2-2a) is located at the notch groove one (1-1). The right end of the protrusion (2-2a) extends to the outside of the right side of the annular cover (5) through the notch groove two (5-1), and the right end of the protrusion (2-2a) has an opening groove one (2-2c) with the opening facing downward and to the right. The position monitoring sensor (2-3) is plastic-coated and located at the top of the opening groove one (2-2c).

3. The electromagnetic actuator with good operating state monitoring performance according to claim 1, characterized in that, The electromagnetic coil assembly (2) includes a coil frame (2-5) and a winding (2-1) wound around the outer periphery of the coil frame (2-5). The outer periphery of the annular cover (5) has a notch (5-1). The lead-out assembly (2-4) connected to the winding (2-1) extends through the notch (5-1) to the outside of the right side of the annular cover (5). The position sensor assembly includes a "7" shaped bracket (9). A position monitoring sensor (2-3) is installed inside the horizontal section of the "7" shaped bracket (9). The vertical section of the "7" shaped bracket (9) has an opening slot (9-1) that passes through both the left and right ends. The horizontal section of the "7" shaped bracket (9) is overlapped and fixed on the outer periphery of the outer shell (1). The vertical section of the "7" shaped bracket (9) is located on the right side of the annular cover (5). The permanent magnet (6-2) is inserted into the opening slot (9-1).

4. The electromagnetic actuator with good operating state monitoring performance according to claim 3, characterized in that, The horizontal section of the “7”-shaped bracket (9) has an ear block 1 (9-2) with a mounting hole, and the vertical section of the “7”-shaped bracket (9) has an ear block 2 (9-3) with a mounting hole. The horizontal section of the “7”-shaped bracket (9) is fixedly installed on the outer circumferential surface of the outer shell (1) by screws passing through the mounting holes of the ear block 1 (9-2), and the vertical section of the “7”-shaped bracket (9) is fixedly installed on the right side of the annular cover (5) by screws passing through the mounting holes of the ear block 2 (9-3).

5. The electromagnetic actuator with good operating status monitoring performance as described in claim 4, characterized in that, The outlet assembly (2-4) has a plug (2-4a) at its end.

6. The electromagnetic actuator with good operating state monitoring performance according to any one of claims 1 to 5, characterized in that, It also includes a support sleeve (4), and a bushing (5-3) extending into the inner cavity of the outer shell (1) is fixed on the left side of the annular cover (5). The left end of the inner circumferential side of the bushing (5-3) has an annular stepped groove II. The right end of the support sleeve (4) is interference-fitted into the annular stepped groove II. The inner circumferential side of the support sleeve (4) is flush with the inner circumferential side of the right end of the bushing (5-3). Corresponding oil guide grooves (8) are opened on the inner circumferential side of the support sleeve (4) and the inner circumferential side of the right end of the bushing (5-3). The drive sleeve (3) is coaxially slidably connected to the cavity inside the bushing (5-3) and the support sleeve (4). The right end of the electromagnetic coil assembly (2) is sleeved and fixed on the bushing (5-3).

7. An electromagnetic actuator with good operating condition monitoring performance according to claim 6, characterized in that, The drive sleeve (3) has an annular stepped groove (3-1) on the right side of its inner circumference, an annular groove (3-3) on the right side of its inner circumference, and an annular eave (3-2) on the left side of its outer circumference. The position monitoring sleeve (6) is inserted into the annular stepped groove (3-1), and the left edge of the position monitoring sleeve (6) abuts against the left bottom surface of the annular stepped groove (3-1). A retaining ring (7) for limiting the abutment against the right edge of the position monitoring sleeve (6) is embedded in the annular groove (3-3). The left edge of the support sleeve (4) abuts against the annular eave (3-2).

8. An electromagnetic actuator with good operating condition monitoring performance according to claim 7, characterized in that, The annular cover (5) has a plurality of ear plates (5-2) extending outward to the outside of the outer shell (1) at intervals around its outer periphery, and the ear plates (5-2) have mounting holes that penetrate the plate.

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