Electric rotating and crumple protection mechanism and vehicle

Abstract

The utility model discloses an electric rotating and collapsing protection mechanism and a vehicle, the electric rotating and collapsing protection mechanism comprises a rotating part, a clutch assembly and a fixed part, and the clutch assembly flexibly connects the rotating part and the fixed part; the rotating part comprises a rotating support, a motor and a worm, the motor and the worm are both connected to the rotating support to form the rotating part, and the motor drives the worm to enable the rotating part to rotate relative to the fixed part; the clutch assembly comprises a pressure spring, an annular friction plate and a bevel gear, and the worm is meshed with the bevel gear; the helical gear and the annular friction plate are clamped to form flexible connection through the elastic force of the pressure spring; the fixed part comprises a fixed support and a base, and the other end face of the annular friction plate is fixedly connected with the fixed support. According to the utility model, the risk of tooth breakage and failure caused by stalling and external abuse of torsion can be effectively avoided, the overall size is small, and the product competitiveness is strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle-mounted equipment technical field, especially a kind of electric rotation, collapse protection mechanism and vehicle. BACKGROUND

[0002] Vehicle-mounted small electric rotation, collapse protection mechanism provides abundant rotation operation for the components of interior and exterior trim of car, and user will obtain better sense of ritual, sense of control;In the context that occupant misoperation forcibly twists product or external foreign matter blocks product rotation, provide abuse force protection mechanism, provide stall protection mechanism, greatly improve the reliability of product. SUMMARY

[0003] The main purpose of the utility model is to provide an electric rotation, collapse protection mechanism and vehicle, to solve the problem of internal tooth failure and assembly damage caused by abuse force operation and foreign matter jamming stall of existing electric rotation mechanism.

[0004] To achieve the above object, the utility model provides an electric rotation, collapse protection mechanism, comprising: rotating part, clutch assembly and fixed part, the clutch assembly flexibly connects the rotating part and the fixed part;

[0005] The rotating part includes rotating support, motor and worm, the motor and worm are connected on the rotating support, and constitute the rotating part, the motor drives the worm to make the rotating part rotate relative to the fixed part;

[0006] The clutch assembly includes compression spring, annular friction plate and bevel gear, the worm is engaged with the bevel gear;The shaft center of the bevel gear is provided with a guide column, the annular friction plate passes through the guide column, and is assembled with the bevel gear;The compression spring passes through the guide column of the bevel gear, one end of the compression spring is in contact with the end face of annular friction plate, the other end of the compression spring is clamped into the bevel gear, and the bevel gear and the annular friction plate are clamped by the elastic force of the compression spring to form flexible connection;

[0007] The fixed part includes fixed support and base, and the other end face of the annular friction plate is fixedly connected with the fixed support.

[0008] The utility model further provides a technical scheme, the bottom of the rotating support is fixedly connected with motor support, the worm is movably connected in the motor support, the motor is fixed on the motor support, and the output end of the motor is connected with one end of the worm.

[0009] A further technical solution of this utility model is that the guide post has a hollow structure and two symmetrically arranged semi-open slots. One end of the compression spring is naturally tapered, and the other end of the compression spring is bent inward and tapped into the semi-open slot.

[0010] A further technical solution of this utility model is that one end of the annular friction plate has a screw post, the fixed support is provided with a screw through hole that cooperates with the screw post, and the annular friction plate is screwed to the fixed support.

[0011] A further technical solution of this utility model is that the other end of the annular friction plate is an annular plane.

[0012] A further technical solution of this utility model is that the rotating bracket is slidably connected to the fixed support, the helical gear is connected to the side of the annular friction plate, and the rotating bracket revolves around the central axis of the fixed support.

[0013] A further technical solution of this utility model is that the top of the fixed support is provided with a circular groove, and the bottom of the rotating bracket is provided with a protruding slider, the slider being slidably connected in the groove.

[0014] A further technical solution of this utility model is that the upper edge of the slide groove is provided with a clearance position, and the slider is inserted into the slide groove through the clearance position.

[0015] A further technical solution of this utility model is that the fixed support is provided with an installation position, and the installation position of the fixed support is fixedly connected to the base by screws.

[0016] To achieve the above objectives, this utility model also proposes a vehicle, which includes the electric rotation and collapse protection mechanism described above.

[0017] The beneficial effects of this utility model's electric rotation and collapse protection mechanism and vehicle are:

[0018] This invention utilizes a flexible, slippage-resistant clutch assembly design. In energized operation, when the rotating support is blocked by a large external force, causing a stall, this design effectively avoids the risk of tooth breakage during stalling. In de-energized operation, when the worm gear is engaged and stationary at any intermediate stroke, and significant abuse torque is applied to the rotating support, this design effectively avoids the risk of tooth breakage caused by external abuse torque. This invention also significantly reduces the overall size of the device, thereby enhancing product competitiveness. Attached Figure Description

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described in the following only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0020] Fig. 1 It is the overall structure of the electric rotating, collapse protection mechanism of the present application.

[0021] Fig. 2 It is the structure explosion drawing of the electric rotating, collapse protection mechanism of the present application.

[0022] Fig. 3 It is the local structure explosion drawing of the electric rotating, collapse protection mechanism of the present application.

[0023] Explanation of reference numerals:

[0024] Rotating support 1, motor 2, worm 3, fixed support 4, compression spring 5, annular friction plate 6, bevel gear 7, base 8, compression spring bending tail 8, slot 10, sliding groove 11, avoidance position 12, screw 13, sliding block 14, motor support 15.

[0025] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] The present application provides an electric rotating, collapse protection mechanism, as shown in the drawings, the electric rotating, collapse protection mechanism of the present application preferably comprises a rotating part, a clutch assembly and a fixed part, the clutch assembly flexibly connects the rotating part and the fixed part. Figs. 1 to 3

[0028] The rotating part comprises a rotating support 1, a motor 2 and a worm 3, the motor 2 and the worm 3 are connected to the rotating support 1, constituting the rotating part, the motor 2 drives the worm 3 to make the rotating part rotate relative to the fixed part. The rotating support 1 can carry a load, and the load is assembled to the rotating support 1 to become a rotating device rotating around the center axis.

[0029] ​The clutch assembly comprises a compression spring 5, an annular friction plate 6 and a helical gear 7, the worm 3 is engaged with the helical gear 7. The shaft center of the helical gear 7 is provided with a guide column, the middle of the annular friction plate 6 passes through the guide column and is assembled with the helical gear 7; the compression spring 5 passes through the guide column of the helical gear 7, one end of the compression spring 5 is in contact with one end surface of the annular friction plate 6, the other end of the compression spring 5 is clamped into the helical gear 7, the helical gear 7 and the annular friction plate 6 are clamped to form a flexible connection by the elastic force of the compression spring 5, and the two can rotate relatively within a certain torsion.

[0030] The fixed part comprises a fixed support 4 and a base 8, and the other end surface of the annular friction plate 6 is fixedly connected with the fixed support 4.

[0031] The working principle of the electric rotation and collapse protection mechanism of the embodiment is as follows.

[0032] 1. In the power-on running state, the normal revolution of the rotating part is as follows: the motor 2 drives the worm 3 to rotate, at this time the helical gear 7 and the annular friction plate 6 are kept stationary by the mutual friction force, that is, the helical gear 7, the annular friction plate 6 and the fixed support 4 are all stationary, and the rotating part (i.e. the rotating support 1, the motor 2 and the worm 3) revolves around the center axis.

[0033] 2. In the power-on running state, when the rotating support 1 is blocked by a large external force to generate a locked-rotor condition, the rotating part stops revolving: the motor 2 and the worm 3 still continuously rotate, the worm 3 continuously outputs a thrust force to the helical gear 7; when the thrust force acting on the helical gear 7 overcomes the friction force between the helical gear 7 and the annular friction plate 6, the helical gear 7 rotates relative to the annular friction plate 6, and the helical gear 7 rotates, effectively avoiding tooth breakage of the helical gear 7 in the locked-rotor condition.

[0034] 3. In the power-off condition, when the worm 3 is engaged and stationary at any intermediate position, a large abuse torsion is applied to the rotating support 1, and the rotating part is forcibly rotated by the external force. The worm 3 of the rotating part acts a thrust force on the helical gear 7, when the thrust force acting on the helical gear 7 overcomes the friction force between the helical gear 7 and the annular friction plate 6, the helical gear 7 and the rotating part rotate relative to the annular friction plate 6, effectively avoiding tooth breakage of the helical gear 7 caused by excessive external abuse force.

[0035] In the embodiment, the middle hole of the annular friction plate 6 passes through the guide column of the helical gear 7, so that the end surfaces of the two are in contact, the compression spring 5 passes through the guide column of the helical gear 7, one end of the compression spring 5 is in contact with the end surface of the annular friction plate 6, the other end of the compression spring 5 is clamped into the slotted 10 of the guide column, and the helical gear 7 and the annular friction plate 6 are clamped to form a flexible connection by the elastic force provided by the compression spring 5, and the clutch assembly is composed. Specifically, the guide column is a hollow structure, the guide column is provided with two symmetrical half-open slotted 10, one end of the compression spring 5 is naturally finished, the other end of the compression spring 5 is inwardly bent and finished, and is buckled in the half-open slotted 10.

[0036] The annular friction plate 6 on the clutch assembly is connected with the fixed support 4 through a screw 13. The fixed support 4 is fixed, and the bevel gear 7 is rotated by an external force, and at this time, the external force overcomes the friction force formed by the bevel gear 7 and the end surface of the annular friction plate 6, and the bevel gear 7 is rotated relative to the fixed support 4. Specifically, one end of the annular friction plate 6 has a screw column, and the other end of the annular friction plate 6 is an annular plane, the fixed support 4 is provided with a screw through hole matched with the screw column, and the annular friction plate 6 is connected with the fixed support 4 through the screw 13.

[0037] In the embodiment, the bottom of the rotating support 1 is fixedly connected with a motor support 15, the worm 3 is movably connected in the motor support 15, the motor 2 is fixed on the motor support 15, and the output end of the motor 2 is connected with one end of the worm 3. Through the motor support 15, the motor 2 and the worm 3 can be fixed on the rotating support 1 and rotate synchronously with the rotating support 1, and the rotation driven by the motor 2 is transmitted to the rotating support 1, so that the load is driven to rotate.

[0038] In the embodiment, the rotating support 1 is movably connected with the fixed support 4, the bevel gear 7 is connected to the side surface of the annular friction plate 6, and the rotating support 1 revolves around the central axis of the fixed support 4.

[0039] In the embodiment, the top of the fixed support 4 is provided with a circular sliding groove 11, and the bottom of the rotating support 1 is provided with a protruding sliding block 14 which is movably connected in the sliding groove 11. Preferably, the sliding block 14 is arranged on the inner wall of the inner circle of the rotating support 1, so that the rotating support 1 can rotate smoothly relative to the fixed support 4 and is not easy to fall off through the cooperation of the sliding block 14 and the sliding groove 11.

[0040] In the embodiment, the upper edge of the sliding groove 11 is provided with an avoiding position 12, and the sliding block is inserted into the sliding groove 11 through the avoiding position 12. The width of the avoiding position 12 is slightly larger than the width of the sliding block, so that the sliding block and the avoiding position 12 can be conveniently connected and disassembled.

[0041] In the embodiment, the fixed support 4 is provided with a mounting position, and the mounting position of the fixed support 4 is fixedly connected with the base 8 through a screw. The screw fixing mode can facilitate the assembly of the fixed support 4 and the base 8, and after assembly, the fixed support 4 and the base 8 can form a fixed whole, which serves as a fixed part of the whole mechanism, so that the rotating part of the mechanism can rotate relative to the fixed part.

[0042] The beneficial effects of the electric rotating and collapse protection mechanism are as follows:

[0043] The utility model discloses a flexible connection slip design of clutch assembly, and when the rotation support is blocked by great external force and produces the plugging condition, effectively avoids the risk of broken tooth failure when plugging; when the power is off, the worm pair is meshed and stationary at any intermediate travel, and there is great abuse torque on the rotation support, effectively avoiding the risk of broken tooth failure caused by external abuse torque. The utility model reduces the overall volume to improve product competitiveness.

[0044] To achieve the above object, the utility model also provides a vehicle, the vehicle includes the electric rotation, and the collapse protection mechanism is as described above, and the structure and working principle of the electric rotation, collapse protection mechanism have been described in detail above, and here is no more.

[0045] The above only is the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and the equivalent structural transformation of the utility model specification and the attached drawing contents under the concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. An electrically powered rotational, collapse protection mechanism, characterized in that, The utility model provides a kind of electric rotation, collapse protection mechanism, including: rotating part, clutch assembly and fixed part, the clutch assembly is flexibly connected with the rotating part and the fixed part; The rotating part includes rotating support, motor and worm, the motor, worm are connected on the rotating support, constitute the rotating part, the motor drives the worm to make the rotating part rotate relative to the fixed part; The clutch assembly includes compression spring, annular friction plate and bevel gear, the worm is engaged with the bevel gear;The shaft center of the bevel gear is provided with guide column, the annular friction plate passes through the guide column, and is assembled with the bevel gear;The compression spring passes through the guide column of the bevel gear, one end of the compression spring and annular friction plate one end face contact, the other end of the compression spring is clamped into the bevel gear, and the bevel gear and the annular friction plate are clamped by the elastic force of the compression spring to form flexible connection; The fixed part includes fixed support and base, and the other end face of the annular friction plate is fixedly connected with the fixed support. The bottom of the rotating support is fixedly connected with motor support, the worm is movably connected in the motor support, and the motor is fixed on the motor support.

2. The electrically powered rotation, collapse protection mechanism of claim 1, wherein, The guide column is a hollow structure, the guide column is provided with two symmetrical half-open slots, one end of the compression spring is naturally finished, and the other end of the compression spring is bent inward to be finished and buckled in the half-open slot.

3. The electrically powered rotation, collapse protection mechanism of claim 1, wherein, One end of the annular friction plate has a screw column, the fixed support is provided with a screw through hole matched with the screw column, and the annular friction plate is screw-connected with the fixed support.

4. The electrically powered rotation, collapse protection mechanism of claim 1, wherein, The other end of the annular friction plate is an annular plane.

5. The electrically powered rotation, collapse protection mechanism of claim 4, wherein, The rotating support is slidably connected with the fixed support, the bevel gear is connected to the side surface of the annular friction plate, and the rotating support revolves around the central axis of the fixed support.

6. The electrically powered rotation, collapse protection mechanism of claim 1, wherein, The top of the fixed support is provided with a circular slide groove, and the bottom of the rotating support is provided with a protruding slide block slidably connected in the slide groove.

7. The electrically powered rotation, collapse protection mechanism of claim 1, wherein, The upper edge of the slide groove is provided with a avoiding position, and the slide block is inserted into the slide groove through the avoiding position.

8. The electrically powered rotation, collapse protection mechanism of claim 7, wherein, The fixed support is provided with a mounting position, and the mounting position of the fixed support is fixedly connected with the base by screws.

9. The electrically powered rotation, collapse protection mechanism of claim 1, wherein, The vehicle includes the electric rotation, collapse protection mechanism of any one of claims 1-9.

10. A vehicle characterized by comprising: ​

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