Clutch device with rotating shaft protection function

Abstract

The utility model discloses a clutch device with a rotating shaft protection function, which comprises a motor, a motor casing and a multi-stage planetary reduction gear set, and the multi-stage planetary reduction gear set is composed of a first-stage planetary gear set, a second-stage planetary gear set and a third-stage planetary gear set. A clutch device is arranged between the first-stage planetary gear set and the second-stage planetary gear set and comprises a sun gear disc and a cylindrical gear, a plurality of protruding edges are evenly distributed on the outer edge of the sun gear disc, the first-stage planetary gear set comprises a first-stage planet carrier and four elastic arms, and the cylindrical gear is connected with the first-stage planet carrier. Four arc-shaped grooves are formed in the inner ring of the first-stage planet carrier, a pawl is integrally connected to the elastic arm, a gasket groove is formed in one side of the first-stage planet carrier, and a second gasket is arranged between the gasket groove and the second-stage planet gear set. According to the utility model, components such as the ribs and the pawls are matched for use, so that the slipping effect during over-rotation can be conveniently realized, and the phenomenon of overload of the motor is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent clamp gear box technical field, concretely is a clutch device with rotation axis protection effect. BACKGROUND

[0002] With the continuous progress of technologies such as the Internet of Things and artificial intelligence, the smart home market is rapidly developing. Smart home products greatly improve people's living experience and quality of life through intelligent control, automated operation, and other methods. Smart toilets and other smart home devices, as representatives, are gradually entering millions of households. In smart home devices, the flip cover function is an important component. In particular for smart toilets and smart trash cans and other devices, the automation and intelligence level of the flip cover function directly affects the user's experience and the overall performance of the device.

[0003] To meet the automation and intelligence needs of the flip cover function of smart home devices, electric drive technology is applied in the design of the flip cover gear box. Electric drive technology realizes the automatic opening and closing of the flip cover through the coordinated work of components such as motors and gear transmission mechanisms. This technology not only improves the convenience of the device, but also reduces the hygiene problems caused by manual operation.

[0004] The existing clutch device with rotation axis protection effect has the following defects:

[0005] The existing electric drive flip cover gear box for smart home has the problem of motor overrunning, which leads to damage of the drive device or overheating of the motor.

[0006] Therefore, a solution is needed. INVENTION CONTENTS

[0007] (I) Technical problems solved

[0008] In view of the deficiencies of the prior art, the utility model provides a clutch device with rotation axis protection effect to solve the problems raised in the background art.

[0009] (II) Technical solutions

[0010] In order to achieve the above object, the utility model discloses a clutch device with rotating shaft protection effect through the following technical schemes: a clutch device with rotating shaft protection effect, including motor, motor shell and multistage planetary reduction gear set, the multistage planetary reduction gear set is composed of primary planetary gear set, secondary planetary gear set and tertiary planetary gear set, the primary planetary gear set with the secondary planetary gear set between being provided with clutch device, the clutch device includes sun gear disc and cylindrical gear, the outer edge of sun gear disc evenly is arranged with a plurality of ribs, the primary planetary gear set includes primary planet carrier and four elastic arms, the inner ring of primary planet carrier is provided with four arc grooves, the elastic arm is integratively connected with the pawl, the one side of primary planet carrier is provided with gasket groove, and the gasket groove with the secondary planetary gear set between is provided with second gasket.

[0011] Preferably, the motor is fixedly installed in the motor shell, the power output end of the motor is connected with the multistage planetary reduction gear set, the motor is sequentially provided with a motor flange and a first gasket at the connection position of the motor and the multistage planetary reduction gear set, and the multistage planetary reduction gear set is provided with a planetary gear set shell on the outside.

[0012] Preferably, the sun gear disc is located on the inner ring of the primary planet carrier, the ribs are in contact with the pawls, and the cylindrical gear is vertically fixed at the middle position of one side of the sun gear disc.

[0013] Preferably, the cylindrical gear is in meshing connection with the secondary planetary gear set, the primary planet carrier has a circular ring structure, and the elastic arms are uniformly distributed on the inner ring position of the primary planet carrier.

[0014] Preferably, the positions of the elastic arms correspond to the arc grooves, one end of the elastic arm is fixed on the arc groove, and the other end has a spacing.

[0015] Preferably, the primary planetary gear set, the secondary planetary gear set and the tertiary planetary gear set each include a plurality of planetary gears.

[0016] (Three) beneficial effects

[0017] The utility model provides a clutch device with rotating shaft protection effect. Has the following beneficial effects:

[0018] The clutch device with rotating shaft protection effect can effectively transmit power, drive the common rotation of the multistage planetary gear set and the output shaft by the structure of the sun gear disc and the primary planet carrier, and effectively solve the problem of broken teeth of the flip gear box by the mutual slipping between the ribs of the sun gear disc and the pawl mechanism of the primary planet carrier when the output shaft rotates to the predetermined position and the motor overruns, so that the overload protection of the system can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the whole structure schematic view of the utility model;

[0020] Fig. 2 It is the schematic view of the clutch device of the utility model;

[0021] Fig. 3 It is the schematic view of the first planetary carrier of the utility model.

[0022] In the drawing: motor shell-1, motor-2, motor flange-3, first gasket-4, first planetary gear set-5, first planetary carrier-501, pawl-502, gasket groove-503, arc-shaped groove-504, elastic arm-505, sun gear disc-6, cylindrical gear-601, convex rib-602, second gasket-7, second planetary gear set-8, planetary gear set housing-9, third planetary gear set-10. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figs. 1-3 The embodiment of the utility model provides a technical scheme:

[0025] Embodiment 1

[0026] For the above-mentioned problem 1 to be solved: the existing intelligent household electric drive flip gear box exists motor overrunning, thereby causing the problem of damage to the driving device or motor overheating.

[0027] The solution is as follows: a clutch device with shaft protection function, comprising a motor 2, a motor shell 1 and a multi-stage planetary reduction gear set, the multi-stage planetary reduction gear set is composed of a first-stage planetary gear set 5, a second-stage planetary gear set 8 and a third-stage planetary gear set 10, a clutch device is arranged between the first-stage planetary gear set 5 and the second-stage planetary gear set 8, the clutch device comprises a sun gear disc 6 and a cylindrical gear 601, a plurality of convex ribs 602 are uniformly arranged on the outer edge of the sun gear disc 6, the first-stage planetary gear set 5 comprises a first-stage planetary carrier 501 and four elastic arms 505, four arc-shaped grooves 504 are arranged on the inner circle of the first-stage planetary carrier 501, a pawl 502 is integrally connected on the elastic arm 505, a gasket groove 503 is arranged on one side of the first-stage planetary carrier 501, a second gasket 7 is arranged between the gasket groove 503 and the second-stage planetary gear set 8, specifically, through the meshing connection between the convex rib 602 and the pawl 502, the normal power output work of the motor 2 can be realized, when the motor 2 overruns, the pressure exerted by the convex rib 602 on the pawl 502 increases, at this time, the elastic arm 505 deforms and moves into the arc-shaped groove 504, realizing the mutual sliding between the convex rib 602 and the pawl 502, and avoiding the overloading of the motor 2.

[0028] Further, the motor 2 is fixedly installed in the motor shell 1, the power output end of the motor 2 is connected with the multi-stage planetary reduction gear set, the motor flange 3 and the first gasket 4 are sequentially installed at the connection between the motor 2 and the multi-stage planetary reduction gear set, and the outer part of the multi-stage planetary reduction gear set is provided with a planetary gear set shell 9.

[0029] Further, the sun gear disc 6 is located on the inner circle of the first-stage planetary carrier 501, the convex rib 602 is in contact with the pawl 502, and the cylindrical gear 601 is vertically fixed at the middle position of one side of the sun gear disc 6, specifically, the pawl mechanism on the first-stage planetary carrier 5 is used in nested cooperation with the sun gear disc 6, and the arc-shaped groove 504 on the first-stage planetary carrier 5 is used for realizing an overload avoiding space.

[0030] Further, the cylindrical gear 601 is meshingly connected with the second-stage planetary gear set 8, and the first-stage planetary carrier 501 has a whole circular ring structure, and the elastic arms 505 are uniformly distributed on the inner circle position of the first-stage planetary carrier 501.

[0031] Further, the position of the elastic arm 505 corresponds to the arc-shaped groove 504, one end of the elastic arm 505 is fixed on the arc-shaped groove 504, and the other end has a spacing.

[0032] Further, the first-stage planetary gear set 5, the second-stage planetary gear set 8 and the third-stage planetary gear set 10 each comprise a plurality of planetary gears.

[0033] Working principle: during operation, the engagement of the convex rib 602 and the pawl 502 can ensure the rotation of the motor 2, normally driving the multi-stage planetary gear set to rotate, realizing power transmission, and when the motor 2 output shaft rotates to a predetermined position, if the motor 2 overruns, the mutual sliding between the convex rib 602 of the sun gear disc 6 and the pawl 502 of the primary planetary carrier 5 can effectively solve the problem of broken teeth of the flip gear box, and can realize overload protection of the system.

[0034] The motor shell-1, the motor-2, the motor flange-3, the first gasket-4, the primary planetary gear set-5, the primary planetary carrier-501, the pawl-502, the gasket groove-503, the arc-shaped groove-504, the elastic arm-505, the sun gear disc-6, the cylindrical gear-601, the convex rib-602, the second gasket-7, the secondary planetary gear set-8, the planetary gear set shell-9, the tertiary planetary gear set-10, the components are all general standard components or components known by those skilled in the art, the structure and principle of which can be known by technical personnel through a technical manual or through a conventional experimental method, the problem solved by the utility model is that the existing electrically-driven flip gear box for smart home exists motor overrunning, thereby causing damage to the driving device or overheating of the motor, the mutual combination of the above components can effectively transmit power, make the motor drive the common rotation of the multi-stage planetary gear set and the output shaft, and if the motor overruns, the mutual sliding between the convex rib of the sun gear disc and the pawl mechanism of the primary planetary carrier can realize overload protection of the system.

[0035] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A clutching device having a rotation axis protection effect, characterized in that: The utility model provides a motor (2), motor shell (1) and multistage planetary reduction gear set, the multistage planetary reduction gear set is by primary planetary gear set (5), secondary planetary gear set (8) and tertiary planetary gear set (10) are formed, and the primary planetary gear set (5) is provided with the clutching device between the secondary planetary gear set (8), and the clutching device includes sun wheel disc (6) and cylindrical gear (601), and the outer edge of sun wheel disc (6) is evenly arranged with a plurality of convex edges (602), and the primary planetary gear set (5) includes primary planet carrier (501) and four elastic arms (505), and the inner ring of primary planet carrier (501) is provided with four arc grooves (504), and the elastic arm (505) is integrally connected with the pawl (502), and the one side of primary planet carrier (501) is provided with gasket groove (503), and the gasket groove (503) is provided with the second gasket (7) between the secondary planetary gear set (8).

2. A clutching device with rotational shaft protection according to claim 1, characterized in that: The motor (2) is fixedly installed in the motor shell (1), the power output end of the motor (2) is connected with the multistage planetary reduction gear set, the motor (2) and the multistage planetary reduction gear set are sequentially provided with motor flange (3) and first gasket (4), and the outside of the multistage planetary reduction gear set is provided with planetary gear set shell (9).

3. A clutching device with rotational shaft protection according to claim 1, characterized in that: The sun wheel disc (6) is located on the inner ring of the primary planet carrier (501), the convex edge (602) is in contact with the pawl (502), and the cylindrical gear (601) is vertically fixed in the middle position of one side of the sun wheel disc (6).

4. The clutch device with rotation axis protection according to claim 1, characterized in that: The cylindrical gear (601) is engaged with the secondary planetary gear set (8), the primary planet carrier (501) is in the form of a whole ring, and the elastic arms (505) are evenly distributed on the inner ring of the primary planet carrier (501).

5. The clutching device with rotation axis protection according to claim 1, characterized in that: The position of the elastic arm (505) corresponds to the arc groove (504), one end of the elastic arm (505) is fixed on the arc groove (504), and the other end has a spacing.

6. A clutching device with rotational shaft protection according to claim 1, characterized in that: The primary planetary gear set (5), the secondary planetary gear set (8) and the tertiary planetary gear set (10) all include a plurality of planetary gears.

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