A power separation device and a working method thereof

Abstract

The present invention discloses a power separation device and a working method, which belong to the field of mechanical automation technology, and include a lifting drive device, a power drive device, a worm and a gear. The power drive device is connected to the lifting drive device, and the power drive device can drive the worm to rotate. The worm can follow the power drive device to move along the axis of the gear. The worm and the gear constitute a worm gear transmission, and the lifting drive device can drive the worm to separate from or contact the gear. In the power separation device described in the present invention, the power motor moves up and down with the upward and downward rotation of the screw, and there is a worm on the output shaft of the power motor, which cooperates with the bevel gear when working; the device can realize instant power switching, and compared with the existing separation device, the structure is more reasonable and compact, the output torque is not limited by the volume, and the economy is better. The separation device runs smoothly, is easy to install, has strong compatibility, a wide range of options, and is suitable for various application scenarios.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical automation technology, and in particular relates to a power separation device and a working method of the power separation device. Background Art

[0002] Current power drive systems on the market are large and complex, incorporating multi-stage gear transmissions and clutches. Electromagnetic and mechanical clutches are the most commonly used. While the former offers stable performance and effective separation, it is limited by its size and lacks the ability to output high torque. The latter, while energy-saving, suffers from poor separation performance and lacks instantaneous power switching. In short, existing clutches hinder the miniaturization and lightweighting of power drive systems, while achieving satisfactory power separation.

[0003] The Chinese invention patent with patent number CN112761456A discloses a rotary actuator assembly, a household appliance having the same, and a control method thereof. After the door is opened / closed, the actuator assembly needs to immediately drive the output shaft to rotate in the opposite direction and reset in order to realize the manual / electric function, which increases the user's waiting time. At the same time, if the user manually opens / closes the door immediately after the door body is in place, there is a situation where the door body cannot be pulled / pushed.

[0004] Therefore, it is necessary to provide a power separation device and a working method thereof that can solve the above problems. Summary of the Invention

[0005] Purpose of the invention: In order to overcome the above shortcomings, the purpose of the present invention is to provide a power separation device, which solves the problem that both the electromagnetic clutch and the mechanical clutch in the power drive device in the prior art have certain limitations, resulting in the power drive device being unable to meet the needs of miniaturization and lightweight.

[0006] Technical Solution: A power separation device comprises a lifting drive device, a power drive device, a worm, and a gear. The power drive device is connected to the lifting drive device and can drive the power drive device to move along the axis of the gear. The worm is connected to the power drive device and can drive the worm to rotate. The worm can follow the power drive device along the axis of the gear. The worm and the gear mesh, and the worm and the gear form a worm gear transmission. The lifting drive device can drive the worm to separate from or contact the gear. The power separation device of the present invention comprises a lead screw motor, a power motor, and a helical gear. The power motor is fixed to the lead screw of the lead screw motor through a housing and moves up and down with the upward and downward rotation of the lead screw. The power motor output shaft has a worm that cooperates with the helical gear during operation. The device can achieve instant power switching. Compared with existing separation devices, it has a more reasonable and compact structure, output torque is not limited by volume, and it is more economical. The separation device operates smoothly, is easy to install, has strong compatibility, a wide range of optional accessories, is suitable for various application scenarios, has good versatility, and has extremely high application value.

[0007] Furthermore, in the aforementioned power separation device, the lifting drive device includes a lead screw motor and a lead screw, the rotating shaft of the lead screw motor being connected to the lead screw, and the lead screw motor being capable of driving the lead screw to rotate, and the lead screw being connected to the power drive device. The lead screw motor is used to drive the lead screw to raise and lower the power drive device, and by precisely controlling the number of rotations of the lead screw motor, the lead screw motor can drive the power drive device to accurately raise and lower the distance, thereby achieving stable and reliable operation.

[0008] Furthermore, in the above-mentioned power separation device, a casing is connected to the outer wall of the power drive device, and the casing is connected to the screw nut on the screw. The casing formed on the outer wall of the power drive device can realize the connection between the screw and the power drive device, so as to perform the lifting and lowering of the power drive device.

[0009] Furthermore, in the above-mentioned power separation device, the power driving device is a power motor. The power motor is used as a power device to drive the worm to rotate, thereby realizing worm gear transmission.

[0010] Furthermore, in the above-mentioned power separation device, the gear is a helical gear.

[0011] Furthermore, in the aforementioned power separation device, the gear is connected to a reduction mechanism, which is a gear set, and the gear is connected to the output shaft of the door body through the reduction mechanism. The reduction mechanism can adjust the speed of the output shaft to a desired speed, thereby achieving the optimal opening and closing speed of the door body. The reduction mechanism can also adjust the output shaft to different speeds according to different application scenarios, providing a good user experience.

[0012] The present invention also provides a working method of a power separation device, which includes the following steps when opening a door:

[0013] S1. Initially, the worm and gear are on the upper and lower horizontal planes respectively, and the worm and gear are in a separated state;

[0014] S2. When the door opening signal is received, the screw motor starts, driving the screw to rotate, thereby causing the screw nut on the screw to move downward. When the screw motor rotates a certain number of turns, the power motor descends to the working position, at which point the worm and gear are in meshing state;

[0015] S3, the power motor is powered on, driving the reduction mechanism, which drives the connected output shaft to rotate, and the output shaft drives the door body to move, realizing the electric door opening action;

[0016] S4: After the door is fully opened, the screw motor starts to rotate in the opposite direction to step S2, driving the screw to rotate, thereby causing the screw nut on the screw to move upward. When the screw motor rotates a certain number of turns, the power motor rises to the separation position, at which time the worm and gear are in a separation state;

[0017] S5. The door can be closed electrically or manually.

[0018] Furthermore, in the working method of the power separation device, the electric door closing in S5 includes the following steps:

[0019] S6. When the electric door closing signal is received, the screw motor starts, driving the screw to rotate, thereby causing the screw nut on the screw to move downward. When the screw motor rotates a certain number of turns, the power motor descends to the working position, at which time the worm and gear are in meshing state;

[0020] S7, the power motor is powered on, driving the reduction mechanism, which drives the connected output shaft to rotate, and the output shaft drives the door body to move, realizing the electric door closing action;

[0021] S8. After the door is closed, the screw motor starts to rotate in the opposite direction to step S6, driving the screw to rotate, thereby causing the screw nut on the screw to move upward. When the screw motor rotates a certain number of turns, the power motor rises to the separation position, and the worm and gear return to their initial separation state.

[0022] Because the lead screw has a self-locking function, in the initial position, the worm and bevel gear of the power motor are not on the same horizontal plane and are in a disengaged state. When the door is opened electrically, the lead screw of the lead screw motor rotates downward, driving the power motor to the working position. At this time, the worm and bevel gear are in meshing state. The power motor is powered on and begins to drive the gear set to rotate, thereby driving the door body. Once the door is in place, the lead screw of the lead screw motor immediately rotates upward, causing the power motor to rise to the initial position. At this point, the worm and bevel gear are exactly disengaged. At this time, if the door is closed electrically, repeat the electric door opening action; if the door is closed manually, simply close the door directly.

[0023] As can be seen from the above technical solution, the present invention has the following beneficial effects: The power separation device described in the present invention has a reasonable and compact overall structure, a simple transmission component arrangement, and further saves space while being miniaturized and lightweight. It is relatively convenient to use and more intelligent, meeting the different usage habits of customers and applicable to a variety of application scenarios. It has a high degree of automation and intelligence and has extremely high application value. The power separation device described in the present invention is conceived based on the Triz theory of time-for-space, and utilizes a control logic diagram to achieve the lifting and lowering of the power motor (worm), with good implementation effect. In particular, the lifting and lowering time is extremely short (the number of rotations of the screw motor determines whether it is engaged or separated), which does not cause users to feel anxious about waiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the power separation device of the present invention when in use;

[0025] Figure 2 This is a schematic structural diagram of the power separation device of the present invention when closed;

[0026] Figure 3 This is a schematic structural diagram of the power separation device of the present invention when separated;

[0027] Figure 4 This is a working flow chart of the power separation device described in the present invention.

[0028] In the figure: lifting drive device 1, screw motor 11, screw 12, power drive device 2, housing 21, worm 3, gear 4. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise explicitly specified.

[0032] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature. Example

[0034] like Figure 1-3The power separation device shown includes a lifting drive device 1, a power drive device 2, a worm 3 and a gear 4. The power drive device 2 is connected to the lifting drive device 1, and the lifting drive device 1 can drive the power drive device 2 to move along the axial direction of the gear 4. The worm 3 is connected to the power drive device 2, and the power drive device 2 can drive the worm 3 to rotate. The worm 3 can follow the power drive device 2 to move along the axial direction of the gear 4. The worm 3 and the gear 4 are meshed, and the worm 3 and the gear 4 constitute a worm gear transmission. The lifting drive device 1 can drive the worm 3 to separate from or contact the gear 4.

[0035] The lifting drive device 1 includes a screw motor 11 and a screw 12. The rotating shaft of the screw motor 11 is connected to the screw 12, and the screw motor 11 can drive the screw 12 to rotate. The screw 12 is connected to the power drive device 2. A casing 21 is connected to the outer wall of the power drive device 2, and the casing 21 is connected to the screw nut on the screw 12.

[0036] In the above structure, the power drive device 2 is a power motor. The gear 4 is a helical gear.

[0037] In addition, the gear 4 is connected to a speed reduction mechanism 5 , which is a gear set. The gear 4 is connected to the output shaft of the door body through the speed reduction mechanism 5 .

[0038] Based on the above structure, Figure 4 The working method of the power separation device shown above includes the following steps when opening the door:

[0039] S1. Initially, the worm 3 and the gear 4 are located on the upper and lower horizontal planes respectively, and the worm 3 and the gear 4 are in a separated state;

[0040] S2. Upon receiving the door opening signal, the screw motor 11 starts, driving the screw 12 to rotate, thereby causing the screw nut on the screw 12 to move downward. When the screw motor 11 rotates a certain number of turns, the power motor descends to the working position, at which time the worm 3 and the gear 4 are in meshing state;

[0041] S3. The power motor is powered on to drive the reduction mechanism 5, which drives the connected output shaft to rotate, and the output shaft drives the door body to move, thereby realizing the electric door opening action;

[0042] S4, after the door is fully opened, the screw motor 11 starts to rotate in the opposite direction to step S2, driving the screw 12 to rotate, thereby causing the screw nut on the screw 12 to move upward. When the screw motor 11 rotates a certain number of turns, the power motor rises to the separation position, at which time the worm 3 and the gear 4 are in a separation state;

[0043] S5. The door can be closed electrically or manually.

[0044] The electric door closing in the above S5 includes the following steps:

[0045] S6. Upon receiving the electric door closing signal, the screw motor 11 starts, driving the screw 12 to rotate, thereby causing the screw nut on the screw 12 to move downward. When the screw motor 11 rotates a certain number of turns, the power motor descends to the working position, at which time the worm 3 and the gear 4 are in meshing state;

[0046] S7, the power motor is powered on, driving the reduction mechanism 5 to transmit, the reduction mechanism 5 drives the connected output shaft to rotate, and the output shaft drives the door body to move, realizing the electric door closing action;

[0047] S8. After the door is closed, the screw motor 11 starts to rotate in the opposite direction to step S6, driving the screw 12 to rotate, thereby causing the screw nut on the screw 12 to move upward. When the screw motor 11 rotates a certain number of turns, the power motor rises to the separation position, and the worm 3 and the gear 4 return to their initial separation state.

[0048] In order to reduce the waiting time of users, the rising and falling distance of the power motor is the distance between the initial position and the working position.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as the scope of protection of the present invention.

Claims

1. A power separation device, characterized in that: The invention comprises a lifting drive device (1), a power drive device (2), a worm (3) and a gear (4), wherein the power drive device (2) and the lifting drive device (1) are connected, and the lifting drive device (1) can drive the power drive device (2) to move along the axis direction of the gear (4), the worm (3) and the power drive device (2) are connected together, and the power drive device (2) can drive the worm (3) to rotate, and the worm (3) can follow the power drive device (2) to move along the axis direction of the gear (4), and the worm (3) and the gear (4) are meshed, and the worm (3) and the gear (4) constitute a worm gear transmission, and the lifting drive device (1) can drive the worm (3) and the gear (4) to separate or contact each other; the lifting drive device (1) includes a screw motor (11) and a screw (12), the rotating shaft of the screw motor (11) is connected to the screw (12), and the screw motor (11) can drive the screw (12) to rotate, and the screw (12) is connected to the power drive device (2); the gear (4) is connected to a speed reduction mechanism (5).

2. The power separation device according to claim 1, characterized in that: A sleeve (21) is connected to the outer wall of the power drive device (2), and the sleeve (21) is connected to a screw nut on the screw (12).

3. The power separation device according to claim 1, characterized in that: The power drive device (2) is a power motor.

4. The power separation device according to claim 1, characterized in that: The gear (4) is a helical gear.

5. A method for operating a power separation device, characterized in that: The following steps are involved when opening the door: S1. Initially, the worm (3) and the gear (4) are located on upper and lower horizontal planes, respectively, and the worm (3) and the gear (4) are in a separated state; S2, upon receiving the door opening signal, the screw motor (11) starts, driving the screw (12) to rotate, thereby causing the screw nut on the screw (12) to move downward. When the screw motor (11) rotates to a certain number of turns, the power motor descends to the working position, at which time the worm (3) and the gear (4) are in a meshing state; S3, the power motor is powered on, driving the reduction mechanism (5) to transmit, the reduction mechanism (5) drives the connected output shaft to rotate, and the output shaft drives the door body to move, thereby realizing the electric door opening action; S4, after the door is fully opened, the screw motor (11) starts to rotate in the opposite direction to step S2, driving the screw (12) to rotate, thereby causing the screw nut on the screw (12) to move upward. When the screw motor (11) rotates a certain number of turns, the power motor rises to the separation position, at which time the worm (3) and the gear (4) are in a separation state; S5. The door can be closed electrically or manually.

6. The operating method of the power separation device according to claim 5, characterized in that: The electric door closing in the above S5 includes the following steps: S6. Upon receiving the electric door closing signal, the screw motor (11) starts, driving the screw (12) to rotate, thereby causing the screw nut on the screw (12) to move downward. When the screw motor (11) rotates to a certain number of turns, the power motor descends to the working position, at which time the worm (3) and the gear (4) are in a meshing state; S7, the power motor is powered on, driving the reduction mechanism (5) to transmit, the reduction mechanism (5) drives the connected output shaft to rotate, and the output shaft drives the door body to move, thereby realizing the electric door closing action; S8. After the door is closed, the screw motor (11) starts to rotate in the opposite direction to step S6, driving the screw (12) to rotate, thereby causing the screw nut on the screw (12) to move upward. When the screw motor (11) rotates to a certain number of turns, the power motor rises to the separation position, and the worm (3) and the gear (4) return to the initial separation state.

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