An output structure with reverse input locking and forward automatic unlocking

Abstract

The present invention discloses an output structure with reverse input locking and forward automatic unlocking, including a steel sleeve, in which a clutch, an output shaft and a pin are arranged; a plurality of evenly distributed output shaft platforms are arranged on the output shaft, and a torque output key is arranged at the bottom; the clutch includes a claw plate, a torque input key arranged on the inner side of the claw plate, and an input turbine arranged on the back side of the claw plate; the output shaft is coaxially arranged with the clutch, and the torque output key and the torque input key are installed with clearance fit; a clutch groove is axially arranged on the claw plate, and the pin is installed in the clutch groove between the steel sleeve and the output shaft platform. The present invention has a simple structure, a reasonable design, a compact layout, a good self-locking effect, and can effectively protect the motor and extend the service life of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to an output structure with reverse input locking and forward automatic unlocking. Background Art

[0002] At present, there are many studies on motor systems at home and abroad, mainly focusing on the application of new motors and the improvement of motor system control strategies. Several key issues that need to be considered are cost, efficiency, reliability, weight, size, noise and durability.

[0003] The self-locking of the motor mainly uses mechanical or electromagnetic methods. However, the current self-locking methods all have a problem: under heavy load, the working motor will have a tendency to rotate the motor output shaft faster than the motor itself due to the pressure of the load. This phenomenon will either increase the noise of the motor or increase the temperature of the motor. If it lasts for a long time or the pressure of the load is large enough, the motor will be damaged.

[0004] In summary, how to provide a self-locking structure with good self-locking performance, quick unlocking, the motor will not rotate even when overloaded, and low noise and strong output force is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In view of the above problems, the present invention provides an output structure with reverse input locking and forward automatic unlocking to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides an output structure with reverse input locking and forward automatic unlocking, comprising a steel sleeve, in which a clutch, an output shaft and a pin are arranged; a plurality of evenly distributed output shaft platforms are arranged on the output shaft, and a torque output key is arranged at the bottom thereof; the clutch comprises a claw plate, a torque input key arranged on the inner side of the claw plate and an input turbine arranged on the back side of the claw plate; the output shaft is coaxially arranged with the clutch, and the torque output key and the torque input key are installed with clearance fit; a clutch groove is axially arranged on the claw plate, and the pin is installed in the clutch groove between the steel sleeve and the output shaft platform.

[0007] As a preferred setting of the present invention, during reverse input, a locking angle is provided between the output shaft platform and the pin; the force angle of the output shaft platform relative to the pin changes, thereby changing the force direction of the pin and the output shaft platform, reaching the locking angle, and realizing self-locking of the mechanism.

[0008] As a preferred setting of the present invention, during forward input, the claw plate pushes the pin to rotate with the clutch, and after the torque input key eliminates the gap, it pushes the torque output member to rotate with the output shaft and the clutch, automatically unlocking.

[0009] As a preferred configuration of the present invention, the output shaft platform corresponds one-to-one to the clutch groove.

[0010] As a preferred configuration of the present invention, it further comprises a housing, wherein the steel sleeve is fixed inside the housing; a motor is connected to the lower part of the housing, a worm is connected to the motor output shaft, and the worm is meshed with the input turbine.

[0011] As a preferred configuration of the present invention, the output structure of reverse input locking and forward automatic unlocking is applied to the output end of the motor.

[0012] As a preferred configuration of the present invention, it includes but is not limited to being applied to a smart sofa.

[0013] As a preferred configuration of the present invention, it includes but is not limited to application in seat products.

[0014] The preferred configuration of the present invention includes but is not limited to application to an elevator actuator.

[0015] The beneficial effects of the present invention are:

[0016] The present invention has a simple structure and a reasonable design, and its layout is compact and can effectively save space. Due to the special structure of the clutch, when the input is reversed (torque is loaded on the output shaft), the force angle of the output shaft platform relative to the pin changes, thereby changing the force direction of the pin and the output shaft platform to reach a locking angle, thereby realizing self-locking of the mechanism; at the same time, when the input is forward (torque is loaded on the clutch), the claw plate moves the pin to rotate with the clutch, and after the torque input key eliminates the gap, the torque output member is moved to rotate with the output shaft and the clutch, thereby realizing fast and automatic unlocking. Due to the principle of force locking, no obvious vibration and noise will occur when the motor is self-locking. The force locking structure conforms to the principles of physics, has a good self-locking effect, can effectively protect the motor, and extend the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural cross-sectional view of an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of an exploded structure of an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the output shaft structure provided by an embodiment of the present invention.

[0020] In the figure, 1, steel sleeve, 2, clutch, 201, claw plate, 202, torque input key, 203, input turbine, 204, clutch groove, 3, output shaft, 301, output shaft platform, 302, torque output key, 4, pin, 5, housing, 6, worm. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example 1

[0025] Reference Figures 1-2 As an embodiment of the present invention, the present invention provides an output structure with reverse input locking and forward automatic unlocking, including a steel sleeve 1, in which a clutch 2, an output shaft 3 and a pin 4 are arranged; a plurality of evenly distributed output shaft platforms 301 are arranged on the output shaft 3, and a torque output key 302 is arranged at the bottom thereof; the clutch includes a claw plate 201, a torque input key 202 arranged on the inner side of the claw plate 201, and an input turbine 203 arranged on the back side of the claw plate 201; the output shaft 3 is coaxially arranged with the clutch 2, and the torque output key 302 is installed with clearance fit with the torque input key 202; a clutch groove 204 is axially arranged on the claw plate 201, and the pin 4 is installed in the clutch groove 204 between the steel sleeve 1 and the output shaft platform 301.

[0026] When the input is reverse (torque is loaded on the output shaft 3), the force angle of the output shaft platform 301 relative to the pin 4 changes, and then the force direction of the pin 4 and the output shaft platform 301 changes, reaching the locking angle, and realizing the self-locking of the mechanism. When the input is forward (torque is loaded on the clutch 3), the claw plate 201 moves the pin 4, so that the pin 4 rotates together with the clutch 2. After the torque input key 202 eliminates the gap, the torque output key 302 is moved, so that the output shaft 3 rotates together with the clutch 2, and the clutch 2 is automatically unlocked.

[0027] As a preferred configuration of the embodiment of the present invention, further, the output shaft platform 301 corresponds to the clutch groove 204 one by one.

[0028] As a preferred configuration of the present invention, it further includes a housing 5, and the steel sleeve 1 is fixed inside the housing 5; a motor is connected to the lower part of the housing 5, and a worm 6 is connected to the motor output shaft, and the worm 6 is meshed with the input turbine 203.

[0029] As a preferred configuration of an embodiment of the present invention, further, the output structure of reverse input locking and forward automatic unlocking is applied to the output end of the motor.

[0030] As a preferred configuration of the embodiment of the present invention, further, it includes but is not limited to application in a smart sofa.

[0031] As a preferred configuration of the embodiment of the present invention, further, it includes but is not limited to application in seat products.

[0032] As a preferred configuration of the embodiment of the present invention, further, it includes but is not limited to being applied to an elevator actuator.

[0033] To sum up, the present invention has a simple structure and a reasonable design, and its layout is compact and can effectively save space. Due to the special structure of the clutch, when the input is reversed (the torque is loaded on the output shaft 4), the force angle of the output shaft platform relative to the pin changes, thereby changing the force direction of the pin and the output shaft platform to reach the locking angle, thereby realizing self-locking of the mechanism; at the same time, when the input is forward (the torque is loaded on the clutch 3), the claw plate moves the pin to rotate with the clutch, and after the torque input key eliminates the gap, the torque output member is moved to rotate with the output shaft and the clutch, thereby realizing fast and automatic unlocking. Due to the principle of force locking, no obvious vibration and noise will occur when the motor is self-locking. The force locking structure conforms to the principles of physics, has a good self-locking effect, can effectively protect the motor, and extend the service life of the motor.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

[0035] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and to form different embodiments. For example, in the above claims, any one of the claimed embodiments may be used in any combination. The information disclosed in this background technology section is intended only to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or in any form of implication that the information constitutes prior art known to those skilled in the art.

Claims

1. An output structure with reverse input locking and forward automatic unlocking, comprising a steel sleeve, characterized in that: A clutch, an output shaft and a pin are arranged in the steel sleeve; a plurality of evenly distributed output shaft platforms are arranged on the output shaft, and a torque output key is arranged at the bottom thereof; the clutch comprises a claw plate, a torque input key arranged on the inner side of the claw plate and an input turbine arranged on the back side of the claw plate; the output shaft is coaxially arranged with the clutch, and the torque output key and the torque input key are installed with clearance fit; a clutch groove is axially arranged on the claw plate, and the pin is installed in the clutch groove between the steel sleeve and the output shaft platform; during reverse input, a locking angle is provided between the output shaft platform and the pin; the force angle of the output shaft platform relative to the pin changes, thereby changing the force direction of the pin and the output shaft platform, and when the locking angle is reached, the mechanism is self-locking; during forward input, the claw plate moves the pin to rotate the pin and the clutch together, and after the torque input key eliminates the clearance, the torque output key is moved to rotate the output shaft and the clutch together, and the output shaft is automatically unlocked.

2. The output structure of reverse input locking and forward automatic unlocking as claimed in claim 1, characterized in that: The output shaft platform corresponds to the clutch groove one by one.

3. The output structure of reverse input locking and forward automatic unlocking as claimed in claim 1, characterized in that: It also includes a shell, and the steel sleeve is fixed inside the shell; the lower part of the shell is connected to a motor, and the motor output shaft is connected to a worm, and the worm is meshed with the input turbine.

4. The output structure of reverse input locking and forward automatic unlocking as claimed in claim 1, characterized in that: The output structure of reverse input locking and forward automatic unlocking is applied to the output end of the motor.

5. The output structure of reverse input locking and forward automatic unlocking according to any one of claims 1 to 4, characterized in that: The output structure can be applied to a smart sofa.

6. The output structure of reverse input locking and forward automatic unlocking according to any one of claims 1 to 4, characterized in that: The output structure can be applied to seat products.

7. The output structure of reverse input locking and forward automatic unlocking according to any one of claims 1 to 4, characterized in that: The output structure can be applied to an elevator actuator.

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