Electric control type clutch structure of actuating device

Abstract

The utility model relates to an electric control type clutch structure of an actuating device, which comprises a driver, a cam, a clutch wheel and a transmission wheel, and the driver is fixed on a gear box; the cam is connected with the driver and driven by the driver, and the cam comprises a first actuating part and a second actuating part; the clutch wheel is connected with the rotating shaft and rotates along with the rotating shaft, a part of area of the clutch wheel is arranged on the cam in a crossing mode, and the cam actuates the clutch wheel in an operable mode; the transmission wheel is connected with the rotating shaft and corresponds to the clutch wheel; when the clutch wheel is located at the first actuating part, the clutch wheel and the transmission wheel are in a disengaged state, and when the clutch wheel is located at the second actuating part, the clutch wheel and the transmission wheel are in an embedded state. Therefore, according to the uneven positions in the grassland, the lifting weeding work can be carried out along with the terrain change of the grassland.

Description

[0001] This application claims priority to U.S. Patent Application No. 63 / 634,492, filed April 16, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the technology of an actuation device, and more particularly to an electronically controlled clutch structure for an actuation device. Background Technology

[0003] The use of lawnmowers on golf courses and various grassed fields for rapid and large-scale weeding is quite common and widespread. When weeding, it is generally desirable for the cut turf to be of uniform and flat height.

[0004] However, most existing lawnmowers do not have the ability to adjust their height according to the terrain of the lawn. Therefore, during lawnmower operations, the blades often leave residual weeds, shake, vibrate, and become difficult to control due to uneven force application when digging hard soil under high-speed rotation. In addition, the high-speed rotation of the blades can easily cause soil, grass, debris, and other foreign objects to fly everywhere, which can often cause operators to be injured by the flying foreign objects.

[0005] In view of this, the applicant has devoted himself to researching and applying theoretical principles to address the shortcomings of the prior art, and has made every effort to solve the aforementioned problems, which has become the target of the applicant's improvement. Utility Model Content

[0006] The purpose of this application is to provide an electronically controlled clutch structure for an actuation device, which can adapt to uneven terrain in the grass by operating the actuation device through the electronically controlled clutch structure to perform weeding work by changing the height of the grass according to the terrain.

[0007] To achieve the above objectives, this application provides an electrically controlled clutch structure for an actuation device. The actuation device has a gearbox and an electric motor. The electric motor has a rotating shaft. The electrically controlled clutch structure is disposed in the gearbox and configured corresponding to the electric motor. It includes a driver, a cam, a clutch wheel, and a transmission wheel. The driver is fixed in the gearbox. The cam is connected to and driven by the driver. The cam includes a first actuating part and a second actuating part. The clutch wheel is connected to the rotating shaft and rotates with it. A portion of the clutch wheel spans the cam. The cam can operably actuate the clutch wheel. The transmission wheel is connected to the rotating shaft and configured corresponding to the clutch wheel. When the clutch wheel is in the first actuating part, the clutch wheel and the transmission wheel are in a disengaged state. When the clutch wheel is in the second actuating part, the clutch wheel and the transmission wheel are in a engaged state.

[0008] In one embodiment, the clutch wheel includes a disc and a column extending from the disc. A positioning hole is provided at the center of the disc and the column. The rotating shaft has a positioning plane. The clutch wheel is fitted into the positioning plane through the positioning hole, thereby causing the clutch wheel to rotate with the rotating shaft.

[0009] In one embodiment, the disc body is provided with a plurality of fitting blocks, and the drive wheel is provided with a plurality of fitting grooves that fit or disengage from each fitting block.

[0010] In one embodiment, the driver includes a motor body, a bracket, and multiple screwing components. The gearbox has multiple studs inside, and the bracket is locked to each stud by the screwing components. The motor body is housed and fixed inside the bracket.

[0011] In one embodiment, a return spring is also included. The shaft includes a first retaining ring and a washer. The first retaining ring is embedded in the shaft and stops the washer. The clutch wheel includes a disc and a column extending from the disc. The return spring is sleeved on the column and elastically clamped between the disc and the washer.

[0012] In one embodiment, the shaft also includes two wear-resistant pads, and the shaft further includes a second retaining ring and a retaining ring. The second retaining ring is embedded in the shaft, and the two wear-resistant pads are sleeved on the shaft. One wear-resistant pad is disposed between the retaining ring and the drive wheel, and the other wear-resistant pad is disposed between the drive wheel and the second retaining ring.

[0013] In one embodiment, a signal detector is also included, and the cam further includes a trigger body, the signal detector being disposed within the gearbox and configured corresponding to the trigger body.

[0014] In one embodiment, the signal detector includes a first detection unit and a second detection unit. When the clutch wheel and the drive wheel are in a disengaged state, the first detection unit is triggered by a trigger body. When the clutch wheel and the drive wheel are in a engaged state, the second detection unit is triggered by a trigger body.

[0015] In one embodiment, the device also includes a processor, a driver, a signal detector, and an electric motor electrically connected processor.

[0016] In one embodiment, a force detector is also included, and the actuating device further has a transmission mechanism with a push rod. The force detector is disposed on the transmission mechanism to detect whether the push rod is under load.

[0017] This application also has the following effect: by setting up a signal detector and a trigger, it is possible to clearly know whether the clutch wheel and the transmission wheel are in a disengaged state or an engaged state. Attached Figure Description

[0018] Figure 1 This is an exploded perspective view of the electronically controlled clutch structure integrated with the actuator of this application.

[0019] Figure 2 This is an exploded view of the electronically controlled clutch structure and motor of this application.

[0020] Figure 3 This is a cross-sectional view of the combination of the electronically controlled clutch structure and the electric motor in this application.

[0021] Figure 4 This is a perspective view of the electronically controlled clutch structure combined with the actuator of this application.

[0022] Figure 5 This is a schematic diagram of the electronically controlled clutch structure combined with the actuator of this application.

[0023] Figure 6 This is a schematic diagram of the meshing combination of the clutch wheel and the transmission wheel in this application.

[0024] Figure 7 This is a cross-sectional view of the clutch wheel and transmission wheel meshing in this application.

[0025] Figure 8 This is a schematic diagram showing the separation of the clutch wheel and the drive wheel in this application.

[0026] Figure 9 This is a sectional view showing the clutch wheel and drive wheel separated in this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1: Electronically controlled clutch structure;

[0029] 10: Driver;

[0030] 11: Motor body;

[0031] 12: Bracket;

[0032] 13: Screw fastening assembly;

[0033] 20: Cam;

[0034] 21: First action part;

[0035] 22: Second action part;

[0036] 23: Inclined surface;

[0037] 24: Trigger;

[0038] 30: Clutch wheel;

[0039] 31: Disc body;

[0040] 32: Column;

[0041] 33: Positioning hole;

[0042] 34: Chip block;

[0043] 35: Return spring;

[0044] 36: Wear-resistant gasket;

[0045] 40: Drive wheel;

[0046] 41: Fitting groove;

[0047] 50: Signal detector;

[0048] 51: First detection unit;

[0049] 52: Second detection unit;

[0050] 60: Processor;

[0051] 70: Force detector;

[0052] 8: Actuation device;

[0053] 81: Gearbox;

[0054] 811: base;

[0055] 812: Stud;

[0056] 815: Cover;

[0057] 82: Electric motor;

[0058] 821: Shaft;

[0059] 822: Positioning plane;

[0060] 823: First buckle;

[0061] 824: Gasket;

[0062] 825: Second buckle;

[0063] 826: Retaining ring;

[0064] 83: Reduction mechanism;

[0065] 84: Transmission mechanism;

[0066] 841: Putter. Detailed Implementation

[0067] The detailed description and technical content of this application are explained below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit this application.

[0068] Please refer to the following first. Figures 1 to 5As shown, this application provides an electronically controlled clutch structure for an actuation device, wherein the actuation device 8 mainly includes a gearbox 81, a motor 82, a reduction mechanism 83, a transmission mechanism 84, an electronically controlled clutch structure 1, and other related components or devices.

[0069] The gearbox 81 mainly includes a base 811 and a cover 815 corresponding to the base 811. The reduction mechanism 83 is mounted on the base 811 and includes multiple spur gears of different sizes. The motor 82 and the transmission mechanism 84 are mounted on the base 811 and are driven by the reduction mechanism 83. The transmission mechanism 84 has a push rod 841 and related components. Since the aforementioned components or mechanisms are all existing technologies, they will not be described in detail one by one.

[0070] The electronically controlled clutch structure 1 of this application is disposed in the gearbox 81 and configured corresponding to the electric motor 82, and mainly includes a driver 10, a cam 20, a clutch wheel 30 and a transmission wheel 40.

[0071] The driver 10 mainly includes a motor body 11, a bracket 12 and multiple screw components 13. The aforementioned base 811 has multiple studs 812 inside, and the motor 82 has a rotating shaft 821. The bracket 12 is locked to each stud 812 of the base 811 by each screw component 13 passing through it. The motor body 11 is housed and fixed in the bracket 12 and is formed on the side of the rotating shaft 821.

[0072] The cam 20 is connected to and driven to rotate by the aforementioned motor body 11. Its upper surface has a curved profile and mainly includes a first actuating part 21, a second actuating part 22, and two inclined surfaces 23. The first actuating part 21 and the second actuating part 22 are arranged opposite each other and have a height difference. Each inclined surface 23 is connected between the first actuating part 21 and the second actuating part 22. A trigger body 24 protrudes from the lower surface of the cam 20.

[0073] The clutch wheel 30 mainly includes a disc 31 and a column 32 extending from the disc 31. A positioning hole 33 is provided at the center of the disc 31 and the column 32. Multiple fitting blocks 34 are provided on the end face of the disc 31 facing away from the column 32. A part of the disc 31 spans the curved profile of the aforementioned cam 20. The cam 20 is the disc 31 that can operably actuate the clutch wheel 30. The aforementioned rotating shaft 821 has a positioning plane 822. The clutch wheel 30 is sleeved on the positioning plane 822 of the rotating shaft 821 through its positioning hole 33, thereby causing the clutch wheel 30 to rotate driven by the rotating shaft 821.

[0074] The transmission wheel 40 is movably connected to the aforementioned rotating shaft 821 and is formed below the clutch wheel 30. It meshes with the gears of the aforementioned reduction mechanism 83 for transmission. The transmission wheel 40 has multiple engagement slots 41 at positions corresponding to the engagement blocks 34 of the clutch wheel 30, for mutual engagement or disengagement. The aforementioned "movable connection" means that when the transmission wheel 40 is disengaged from the clutch wheel 30, the transmission wheel 40 can rotate freely (or idle) relative to the rotating shaft 821, while the rotating shaft 821 and the clutch wheel 30 remain fixed.

[0075] In one embodiment, the electronically controlled clutch structure 1 of this application further includes a signal detector 50, which is disposed inside the gearbox 81 and configured corresponding to the trigger body 24 of the aforementioned cam 20. The signal detector 50 mainly includes a first detection unit 51 and a second detection unit 52. When the clutch wheel 30 and the transmission wheel 40 are in a disengaged state, the first detection unit 51 is triggered by the trigger body 24; when the clutch wheel 30 and the transmission wheel 40 are in a engaged state, the second detection unit 52 is triggered by the trigger body 24.

[0076] In one embodiment, the electronically controlled clutch structure 1 of this application further includes a processor 60, wherein the driver 10, the signal detector 50 and the electric motor 82 are electrically connected to the processor 60.

[0077] In one embodiment, the electronically controlled clutch structure 1 of this application further includes a return spring 35. The aforementioned rotating shaft 821 includes a first retaining ring 823 and a washer 824. The first retaining ring 823 is embedded in the rotating shaft 821 and stops the washer 824. The return spring 35 is sleeved on the outer periphery of the column 32 of the clutch wheel 30 and is elastically clamped between the disc 31 and the washer 824.

[0078] In one embodiment, the electronically controlled clutch structure 1 of this application further includes two wear-resistant pads 36, and the aforementioned rotating shaft 821 further includes a second retaining ring 825 and a retaining ring 826. The second retaining ring 825 is embedded in the rotating shaft 821, and each wear-resistant pad 36 is sleeved on the aforementioned rotating shaft 821. One wear-resistant pad 36 is disposed between the retaining ring 826 and the transmission wheel 40; the other wear-resistant pad 36 is disposed between the transmission wheel 40 and the second retaining ring 825.

[0079] In one embodiment, the electronically controlled clutch structure 1 of this application further includes a force detector 70, which is disposed on the transmission mechanism 84 to detect whether the push rod 841 is subjected to a load or force.

[0080] Please continue reading. Figures 6 to 9As shown, during use, when the push rod 841 of the transmission mechanism 84 extends outward to its upper limit position, the user outputs a control signal by pressing a button (not shown). The processor 60 controls the driver 10 to run, and the motor body 11 of the driver 10 drives the cam 20 to rotate. At this time, the disc 31 of the clutch wheel 30 is lifted by the first actuating part 21 of the cam 20, causing the clutch wheel 30 to move upward and disengage from the transmission wheel 40 (each fitting block 34 and each fitting groove 41 disengage, i.e., are in a disengaged state). At this time, the rotating shaft 821 remains fixed. When the transmission wheel 40 rotates relative to the shaft 821, the trigger body 24 of the cam 20 rotates to the position of the first detection unit 51 and transmits a signal to the processor 60. After receiving the signal that the clutch wheel 30 is disengaged from the transmission wheel 40, the processor 60 controls the motor 82 to stop operating. At this time, the push rod 841 can easily extend and retract under the action of external force. That is, when this actuation device 8 is applied to the lawnmower, the lawnmower can quickly adjust the height of the blades to conform to the ground according to the undulation of the ground, thereby reducing the area of ​​turf that has not been cut.

[0081] After the push rod 841 extends and retracts, the user can press the button again to output a control signal. The processor 60 controls the driver 10 to run. The motor body 11 of the driver 10 will drive the cam 20 to rotate in the opposite direction. At this time, the disc 31 of the clutch wheel 30 is located in the second actuating part 22 of the cam 20. The elastic force of the return spring 35 causes the clutch wheel 30 to move down, and the engagement blocks 34 of the clutch wheel 30 and the engagement slots 41 of the transmission wheel 40 engage with each other (i.e., in an engaged state). The clutch wheel 30 can drive the transmission wheel 40 to rotate. At the same time, when the trigger body 24 of the cam 20 rotates to the position of the second detection unit 52, the second detection unit 52 transmits the engagement signal of the engagement blocks 34 of the clutch wheel 30 and the engagement slots 41 of the transmission wheel 40 to the processor 60. The processor 60 controls the motor 82 to resume operation. At this time, the push rod 841 can extend or retract normally.

[0082] The above description is merely a preferred embodiment of this application and is not intended to limit the patent scope of this application. Other equivalent variations that utilize the patent spirit of this application should all fall within the patent scope of this application.

Claims

1. An electronically controlled clutch structure for an actuation device, characterized in that, The actuation device has a gearbox and an electric motor, the electric motor having a rotating shaft, and the electronically controlled clutch structure disposed in the gearbox and configured corresponding to the electric motor, and includes: The drive unit is fixed to the gearbox; A cam is connected to and driven by the driver, the cam including a first actuating part and a second actuating part; A clutch wheel is connected to and rotates with the shaft, a portion of which spans the cam, and the cam is operable to actuate the clutch wheel; A drive wheel, connected to the rotating shaft and configured corresponding to the clutch wheel; When the clutch wheel is in the first actuating part, the clutch wheel and the transmission wheel are in a disengaged state; when the clutch wheel is in the second actuating part, the clutch wheel and the transmission wheel are in a engaged state.

2. The electrically controlled clutch structure of the actuation device as described in claim 1, characterized in that, The clutch wheel includes a disc and a column extending from the disc. A positioning hole is provided at the center of the disc and the column. The rotating shaft has a positioning plane. The clutch wheel is sleeved on the positioning plane through the positioning hole, so that the clutch wheel rotates with the rotating shaft.

3. The electrically controlled clutch structure of the actuation device as described in claim 2, characterized in that, The disc body is provided with multiple fitting blocks, and the transmission wheel is provided with multiple fitting grooves that can engage or disengage with each of the fitting blocks.

4. The electrically controlled clutch structure of the actuation device as described in claim 1, characterized in that, The driver includes a motor body, a bracket, and multiple screw fastening components. The gearbox has multiple studs inside. The bracket is locked to each stud by passing through each of the screw fastening components. The motor body is housed and fixed inside the bracket.

5. The electrically controlled clutch structure of the actuation device as described in claim 1, characterized in that, It also includes a return spring, the rotating shaft includes a first retaining ring and a washer, the first retaining ring is embedded in the rotating shaft and stops the washer, the clutch wheel includes a disc and a column extending from the disc, and the return spring is sleeved on the column and elastically clamped between the disc and the washer.

6. The electrically controlled clutch structure of the actuation device as described in claim 5, characterized in that, It also includes two wear-resistant pads, and the rotating shaft also includes a second retaining ring and a retaining ring. The second retaining ring is embedded in the rotating shaft, and the two wear-resistant pads are sleeved on the rotating shaft. One of the wear-resistant pads is disposed between the retaining ring and the transmission wheel, and the other wear-resistant pad is disposed between the transmission wheel and the second retaining ring.

7. The electrically controlled clutch structure of the actuation device as described in claim 1, characterized in that, It also includes a signal detector, and the cam further includes a trigger body, the signal detector being disposed within the gearbox and configured corresponding to the trigger body.

8. The electrically controlled clutch structure of the actuation device as described in claim 7, characterized in that, The signal detector includes a first detection unit and a second detection unit. When the clutch wheel and the transmission wheel are in the disengaged state, the first detection unit is triggered by the trigger body. When the clutch wheel and the transmission wheel are in the engaged state, the second detection unit is triggered by the trigger body.

9. The electrically controlled clutch structure of the actuation device as described in claim 7, characterized in that, It also includes a processor, and the driver, the signal detector and the motor are electrically connected to the processor.

10. The electrically controlled clutch structure of the actuation device as described in claim 1, characterized in that, It also includes a force detector, and the actuation device further has a transmission mechanism, the transmission mechanism having a push rod, and the force detector is disposed on the transmission mechanism to detect whether the push rod is under load.

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