An electric actuator and its electro-controlled multi-mode clutch

Abstract

The present invention relates to an electric actuator and its electro-controlled multi-mode clutch, belonging to the technical field of clutches. The electric actuator includes a mounting assembly, a power assembly, and a lever. The mounting assembly includes a bi-directional self-holding electromagnet, in which an electromagnet push rod is slidably installed. The lever is fixedly installed on the electromagnet push rod and is arranged along the radial direction of the electromagnet push rod. The electro-controlled multi-mode clutch includes a control ring, on which a groove is formed. The lever in the electric actuator is inserted into the groove. The electromagnet push rod drives the lever to make a reciprocating linear motion along the axial direction of the electromagnet push rod, and the lever drives the control ring to swing from the groove. After the control ring swings, the position of the roller relative to the cavity is changed, thereby controlling the working mode switching of the multi-mode clutch. The present invention is safe and reliable, has a fast response speed, does not need to be equipped with an oil pump, a hydraulic valve, a solenoid valve, a connecting pipeline, etc., can greatly save space, reduce weight, and lower costs.

Description

Technical Field

[0001] The present invention relates to the technical field of multimode clutches, and in particular to an electric control actuator and an electric control multimode clutch thereof. Background Art

[0002] The multimode clutch mainly uses an actuator to drive the rotation of a control ring so that the rollers thereon are respectively in different working positions in the cavity, thereby realizing the free switching of the clutch among various working modes such as wedging, disengaging, and overrunning, with high adaptability and being applied to a transmission device with a complex transmission relationship; in the prior art, a hydraulic actuator is used to drive the rotation of the control ring in the multimode clutch so that the rollers thereon are respectively in different working positions in the cavity. The hydraulic actuator needs to use an oil pump, a hydraulic valve, a solenoid valve, connecting pipelines, etc., which occupy a large space, are heavy in weight, have a high processing cost, and have a long response time. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the problems that in the multimode clutch of the prior art, a hydraulic actuator is used to drive the rotation of the control ring, which occupies a large space, is heavy in weight, has a high processing cost, and has a long response time, an electric control actuator and an electric control multimode clutch thereof are provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an electric control actuator, comprising:

[0005] An installation assembly;

[0006] A power assembly: the power assembly includes a bi-directional self-holding electromagnet, the bi-directional self-holding electromagnet is fixedly installed on the installation assembly, an electromagnet push rod is slidably installed in the bi-directional self-holding electromagnet, and the bi-directional self-holding electromagnet pushes the electromagnet push rod to perform a reciprocating linear motion along the axial direction of the electromagnet push rod;

[0007] A lever: the lever is fixedly installed on the electromagnet push rod, and the lever is arranged along the radial direction of the electromagnet push rod.

[0008] The electric control actuator of the present invention includes a mounting assembly, a power assembly and a lever. The mounting assembly includes a bi-directional self-holding electromagnet. An electromagnet push rod is slidably mounted inside the bi-directional self-holding electromagnet. The lever is fixedly mounted on the electromagnet push rod. The lever is arranged along the radial direction of the electromagnet push rod. The bi-directional self-holding electromagnet pushes the electromagnet push rod to perform a reciprocating linear motion along the axial direction of the electromagnet push rod, thereby driving the lever to perform a reciprocating linear motion along the axial direction of the electromagnet push rod. The reciprocating motion of the electromagnet push rod is controlled by the energization of the bi-directional self-holding electromagnet. There are two end positions along the axial direction of the electromagnet push rod. After reaching any end position, the bi-directional self-holding electromagnet is de-energized, and both end positions are maintained by the magnetic force of the permanent magnet provided inside the bi-directional self-holding electromagnet. When switching from any end position to the other end position, the bi-directional self-holding electromagnet is energized to demagnetize and generate the initial pulling force required for position switching, so that the electromagnet push rod quickly moves from the current end position to the other end position. The electromagnet push rod drives the lever to perform a reciprocating linear motion along the axial direction of the electromagnet push rod.

[0009] In order to limit the moving distance at both ends of the electromagnet push rod, the present invention further includes a limit assembly. The limit assembly includes magnetic heads and travel switches used in cooperation with the magnetic heads. The two magnetic heads are respectively fixedly mounted at both ends of the electromagnet push rod. The two travel switches are both fixedly mounted on the mounting assembly. When the travel switch at one end is disposed opposite to the magnetic head at its corresponding end, the travel switch at the other end is away from the magnetic head at its corresponding end.

[0010] Further, the present invention further includes an electric control plug, and the electric control plug is electrically connected to the bi-directional self-holding electromagnet.

[0011] In order to reduce the overall volume of the present invention, the power assembly further includes a U-shaped sliding frame. The U-shaped sliding frame includes a connecting plate and side plates fixed at both ends of the connecting plate. The two side plates of the U-shaped sliding frame are respectively fixedly connected to both ends of the electromagnet push rod. The lever is fixedly mounted on the connecting plate of the U-shaped sliding frame. The two magnetic heads are respectively fixedly mounted on the two side plates of the U-shaped sliding frame.

[0012] In order to reduce the overall volume of the present invention, the mounting assembly includes a mounting frame and a mounting plate. The mounting plate is fixedly mounted on the mounting frame. A plurality of mounting holes are provided on the mounting plate. The bi-directional self-holding electromagnet is fixedly mounted on the mounting frame. Both ends of the electromagnet push rod slide out of the mounting frame. The two travel switches are both fixedly mounted on the mounting frame.

[0013] In order to make the lever run more smoothly, a guide plate is fixedly mounted on the mounting plate. The guide plate is arranged along the axial direction of the electromagnet push rod. The connecting plate of the U-shaped sliding frame is in contact with the guide plate.

[0014] An electronically controlled multi-mode clutch includes a self-aligning multi-mode clutch and the electric actuator as described above. The self-aligning multi-mode clutch includes an outer ring, an inner ring, and a control ring disposed between the outer ring and the inner ring. A plurality of window holes are circumferentially and uniformly distributed on the control ring. Rollers are disposed in each of the plurality of window holes. The rollers are held in their respective window holes by elastic members. Cavities corresponding to the rollers one by one are provided on the inner circumferential surface of the outer ring or the outer circumferential surface of the inner ring. The mounting assembly is fixedly mounted on the outer ring. A groove is formed in the control ring. The shift lever is inserted into the groove. When the power assembly drives the shift lever to move, the shift lever drives the control ring to rotate from the groove, and the control ring rotates to change the position of the roller relative to the cavity.

[0015] The electronically controlled multi-mode clutch of the present invention includes a control ring with a groove formed therein. The shift lever in the electric actuator is inserted into the groove. The reciprocating motion of the electromagnet push rod in the electric actuator is controlled by the energization of a bi-directional self-holding electromagnet. There are two end positions along the axial direction of the electromagnet push rod. After reaching any one of the end positions, the bi-directional self-holding electromagnet is de-energized, and both end positions are held by the magnetic force of the permanent magnet disposed inside the bi-directional self-holding electromagnet. When switching from any one end position to the other end position, the bi-directional self-holding electromagnet is energized to demagnetize and generate the initial pulling force required for position switching, so that the electromagnet push rod quickly moves from the current end position to the other end position. The electromagnet push rod drives the shift lever to perform a reciprocating linear motion along the axial direction of the electromagnet push rod. The shift lever drives the control ring to swing from the groove, and after the control ring swings, the position of the roller relative to the cavity is changed, thereby controlling the working mode switching of the multi-mode clutch. The present invention uses a bi-directional self-holding electromagnet, which only needs to be energized during the mode switching of the multi-mode clutch. The bi-directional self-holding electromagnet works, and the end positions are permanently held by the permanent magnet and the closed-loop control is detected by the travel switch. It is safe, reliable, and has a fast response speed. There is no need to be equipped with an oil pump, a hydraulic valve, a solenoid valve, a connecting pipeline, etc., which can greatly save space, reduce the weight, and lower the cost.

[0016] The beneficial effects of the present invention are as follows: The electronically controlled multi-mode clutch of the present invention includes a control ring, on which a groove is provided. The lever in the electric actuator is inserted into the groove. The reciprocating motion of the electromagnet push rod in the electric actuator is controlled by the energization of a bi-directional self-holding electromagnet. There are two end positions along the axial direction of the electromagnet push rod. After reaching any end position, the bi-directional self-holding electromagnet is de-energized, and both end positions are held by the magnetic force of the permanent magnet provided inside the bi-directional self-holding electromagnet. When switching from any end position to the other end position, the bi-directional self-holding electromagnet is energized to demagnetize and generate the initial pulling force required for position switching, so that the electromagnet push rod quickly moves from the current end position to the other end position. The electromagnet push rod drives the lever to make a reciprocating linear motion along the axial direction of the electromagnet push rod. The lever drives the control ring to swing from the groove, and after the control ring swings, the position of the roller relative to the cavity is changed, thereby controlling the working mode switching of the multi-mode clutch. The present invention uses a bi-directional self-holding electromagnet, which only needs to be energized during the mode switching of the multi-mode clutch. The bi-directional self-holding electromagnet works, and the end positions are permanently held by the permanent magnet and the closed-loop control is detected by the travel switch. It is safe, reliable and has a fast response speed. There is no need to be equipped with an oil pump, a hydraulic valve, a solenoid valve and connecting pipelines, etc., which can greatly save space, reduce the weight and lower the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 is the three-dimensional schematic diagram of Embodiment 1 of the present invention;

[0019] Figure 2 is the three-dimensional view of another perspective of Embodiment 1 of the present invention;

[0020] Figure 3 is the front view of Embodiment 1 of the present invention;

[0021] Figure 4 is the three-dimensional assembly schematic diagram of the bi-directional self-holding electromagnet and the mounting bracket in Embodiment 1 of the present invention;

[0022] Figure 5 is the circuit schematic diagram of Embodiment 1 of the present invention;

[0023] Figure 6 is the three-dimensional schematic diagram of Embodiment 2 of the present invention;

[0024] Figure 7 is the front view of Embodiment 2 of the present invention;

[0025] Figure 8 is of the present invention Figure 7 the cross-sectional view at A-A;

[0026] Figure 9 is of the present invention Figure 8 the enlarged view at B;

[0027] Figure 10 It is a three - dimensional assembly schematic diagram of the control ring and the U - shaped carriage in Embodiment 2 of the present invention.

[0028] In the figure: 1. Bi - directional self - holding electromagnet, 2. Electromagnet push rod, 3. Lever, 4. Magnetic head, 5. Travel switch, 6. Electric control plug, 7. U - shaped carriage, 7 - 1. Connecting plate, 7 - 2. Side plate, 8. Mounting bracket, 9. Mounting plate, 10. Guide plate, 11. Outer ring, 12. Inner ring, 13. Control ring, 13 - 1. Groove, 14. Roller. Detailed implementation manners

[0029] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic way, so they only show the components related to the present invention.

[0030] Embodiment 1:

[0031] As Figures 1-5 shown, an electric control actuator includes a mounting assembly, a power assembly and a lever 3. The power assembly includes a bi - directional self - holding electromagnet 1, the bi - directional self - holding electromagnet 1 is fixedly installed on the mounting assembly, an electromagnet push rod 2 is slidably installed in the bi - directional self - holding electromagnet 1, and the bi - directional self - holding electromagnet 1 pushes the electromagnet push rod 2 to make a reciprocating linear motion along the axial direction of the electromagnet push rod 2; the lever 3 is fixedly installed on the electromagnet push rod 2, and the lever 3 is arranged along the radial direction of the electromagnet push rod 2.

[0032] In order to limit the moving distance at both ends of the electromagnet push rod 2, the present invention further includes a limiting assembly. The limiting assembly includes a magnetic head 4 and a travel switch 5 that cooperates with the magnetic head 4. Two magnetic heads 4 are respectively fixedly installed at both ends of the electromagnet push rod 2, and two travel switches 5 are both fixedly installed on the mounting assembly. When one travel switch 5 is oppositely arranged with the magnetic head 4 at its corresponding end, the other travel switch 5 is far away from the magnetic head 4 at its corresponding end.

[0033] The present invention also includes an electric control plug 6, and the electric control plug 6 is electrically connected to the bi - directional self - holding electromagnet 1.

[0034] In order to reduce the overall volume of the present invention, the power assembly further includes a U - shaped carriage 7. The U - shaped carriage 7 includes a connecting plate 7 - 1 and side plates 7 - 2 fixed at both ends of the connecting plate 7 - 1. The two side plates 7 - 2 of the U - shaped carriage 7 are respectively fixedly connected to both ends of the electromagnet push rod 2, the lever 3 is fixedly installed on the connecting plate 7 - 1 of the U - shaped carriage 7, and two magnetic heads 4 are respectively fixedly installed on the two side plates 7 - 2 of the U - shaped carriage 7.

[0035] To reduce the overall volume of the present invention, the mounting assembly includes a mounting frame 8 and a mounting plate 9. The mounting plate 9 is fixedly mounted on the mounting frame 8. A plurality of mounting holes are formed in the mounting plate 9. The bi-directional self-holding electromagnet 1 is fixedly mounted on the mounting frame 8. Both ends of the electromagnet push rod 2 slide out of the mounting frame 8. Both of the two travel switches 5 are fixedly mounted on the mounting frame 8.

[0036] To make the lever 3 operate more smoothly, a guide plate 10 is fixedly mounted on the mounting plate 9. The guide plate 10 is arranged along the axial direction of the electromagnet push rod 2. The connecting plate 7-1 of the U-shaped sliding frame 7 is in contact with the guide plate 10.

[0037] The electric control actuator of the present invention includes a mounting assembly, a power assembly and a lever 3. The mounting assembly includes a bi-directional self-holding electromagnet 1. An electromagnet push rod 2 is slidably mounted in the bi-directional self-holding electromagnet 1. The lever 3 is fixedly mounted on the electromagnet push rod 2. The lever 3 is arranged along the radial direction of the electromagnet push rod 2. The bi-directional self-holding electromagnet 1 pushes the electromagnet push rod 2 to perform a reciprocating linear motion along the axial direction of the electromagnet push rod 2, thereby driving the lever 3 to perform a reciprocating linear motion along the axial direction of the electromagnet push rod 2. The reciprocating motion of the electromagnet push rod 2 is controlled by the energization of the bi-directional self-holding electromagnet 1. There are two end positions along the axial direction of the electromagnet push rod 2. After reaching any one of the end positions, the bi-directional self-holding electromagnet 1 is de-energized. Both of the end positions are held by the magnetic force of the permanent magnet arranged inside the bi-directional self-holding electromagnet 1. When switching from any one of the end positions to the other end position, the bi-directional self-holding electromagnet 1 is energized to demagnetize and generate the initial pulling force required for position switching, so that the electromagnet push rod 2 quickly moves from the current end position to the other end position. The electromagnet push rod 2 drives the lever 3 to perform a reciprocating linear motion along the axial direction of the electromagnet push rod 2.

[0038] Embodiment 2:

[0039] As Figures 6-10 shown, an electric control multi-mode clutch includes a self-aligning multi-mode clutch and the electric actuator as described above. The self-aligning multi-mode clutch includes an outer ring 11, an inner ring 12 and a control ring 13 arranged between the outer ring 11 and the inner ring 12. A plurality of window holes are circumferentially and evenly distributed on the control ring 13. A plurality of rollers 14 are arranged in the plurality of window holes. The rollers 14 are held in their respective window holes by elastic members. The inner circumferential surface of the outer ring 11 or the outer circumferential surface of the inner ring 12 has cavities corresponding to the rollers 14 one by one. The mounting plate 9 in the mounting assembly is fixedly mounted on the outer ring 11 by screws. A groove 13-1 is formed in the control ring 13. The lever 3 is inserted into the groove 13-1. When the power assembly drives the lever 3 to move, the lever 3 drives the control ring 13 to rotate from the groove 13-1. The control ring 13 rotates to change the position of the roller 14 relative to the cavity.

[0040] The electronically controlled multi-mode clutch of the present invention includes a control ring 13. A groove 13-1 is formed on the control ring 13. A lever 3 in the electric actuator is inserted into the groove 13-1. The reciprocating motion of the electromagnet push rod 2 in the electric actuator is controlled by the energization of the bi-directional self-holding electromagnet 1. There are two end positions along the axial direction of the electromagnet push rod 2. After reaching any end position, the bi-directional self-holding electromagnet 1 is de-energized, and both end positions are held by the magnetic force of the permanent magnet provided inside the bi-directional self-holding electromagnet 1. When switching from any end position to the other end position, the bi-directional self-holding electromagnet 1 is energized to demagnetize and generate the initial pulling force required for position switching, so that the electromagnet push rod 2 quickly moves from the current end position to the other end position. The electromagnet push rod 2 drives the lever 3 to perform a reciprocating linear motion along the axial direction of the electromagnet push rod 2. The lever 3 drives the control ring 13 to swing from the groove 13-1. After the control ring 13 swings, the position of the roller 14 relative to the cavity is changed, thereby controlling the working mode switching of the multi-mode clutch. The present invention uses the bi-directional self-holding electromagnet 1, which only needs to be energized during the mode switching of the multi-mode clutch. The bi-directional self-holding electromagnet 1 works, the end positions are held by permanent magnets, and the travel switch 5 detects closed-loop control, which is safe, reliable and has a fast response speed. There is no need to be equipped with an oil pump, a hydraulic valve, a solenoid valve and connecting pipelines, etc., which can greatly save space, reduce the weight and lower the cost.

[0041] Inspired by the above ideal embodiments according to the present invention, through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electronically controlled actuator, characterized in that: Comprising: Installation component; Power component: The power component includes a bi-directional self-holding electromagnet (1), the bi-directional self-holding electromagnet (1) is fixedly installed on the installation component, an electromagnet push rod (2) is slidably installed in the bi-directional self-holding electromagnet (1), and the bi-directional self-holding electromagnet (1) pushes the electromagnet push rod (2) to perform a reciprocating linear motion along the axial direction of the electromagnet push rod (2); Pawl (3): The pawl (3) is fixedly installed on the electromagnet push rod (2), and the pawl (3) is arranged along the radial direction of the electromagnet push rod (2); It further includes a limit component, the limit component includes a magnetic head (4) and a travel switch (5) used in cooperation with the magnetic head (4), the two magnetic heads (4) are respectively fixedly installed at both ends of the electromagnet push rod (2), and the two travel switches (5) are both fixedly installed on the installation component. When the travel switch (5) at one end is arranged opposite to the magnetic head (4) at its corresponding end, the travel switch (5) at the other end is far away from the magnetic head (4) at its corresponding end; The power component further includes a U-shaped carriage (7), the U-shaped carriage (7) includes a connecting plate (7-1) and side plates (7-2) fixed at both ends of the connecting plate (7-1), the two side plates (7-2) of the U-shaped carriage (7) are respectively fixedly connected to both ends of the electromagnet push rod (2), the pawl (3) is fixedly installed on the connecting plate (7-1) of the U-shaped carriage (7), and the two magnetic heads (4) are respectively fixedly installed on the two side plates (7-2) of the U-shaped carriage (7); The installation component includes an installation frame (8) and an installation plate (9), the installation plate (9) is fixedly installed on the installation frame (8), a plurality of installation holes are provided on the installation plate (9), the bi-directional self-holding electromagnet (1) is fixedly installed on the installation frame (8), both ends of the electromagnet push rod (2) slide out of the installation frame (8) and are arranged, and the two travel switches (5) are both fixedly installed on the installation frame (8); When the power component drives the pawl (3) to move, the pawl (3) drives the control ring (13) of the multi-mode clutch to rotate; It further includes an electric control plug (6), and the electric control plug (6) is electrically connected to the bi-directional self-holding electromagnet (1).

2. The electric control actuator according to claim 1, wherein: A guide plate (10) is fixedly installed on the installation plate (9), the guide plate (10) is arranged along the axial direction of the electromagnet push rod (2), and the connecting plate (7-1) of the U-shaped carriage (7) is in contact with the guide plate (10).

3. An electronically controlled multi-mode clutch, characterized in that: Comprising a self-aligning multi-mode clutch and an electric actuator as described in any one of claims 1-2, the self-aligning multi-mode clutch includes an outer ring (11), an inner ring (12), and a control ring (13) disposed between the outer ring (11) and the inner ring (12). A plurality of window holes are circumferentially and uniformly distributed on the control ring (13), and rollers (14) are disposed in each of the plurality of window holes. The rollers (14) are held in their respective window holes by elastic members. The inner circumferential surface of the outer ring (11) or the outer circumferential surface of the inner ring (12) has cavities corresponding to the rollers (14) one by one. The mounting assembly is fixedly mounted on the outer ring (11). A groove (13-1) is formed in the control ring (13), and the shift lever (3) is inserted into the groove (13-1). When the power assembly drives the shift lever (3) to move, the shift lever (3) drives the control ring (13) to rotate from the groove (13-1), and the control ring (13) rotates to change the position of the roller (14) relative to the cavity.

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