Rotary driving device

Abstract

The utility model discloses a rotation driving device which comprises a base, a power source installed on the base, a rotating piece rotatably installed on the base and used for driving a rotating object to rotate, and a transmission unit connected between the power source and the rotating piece in a transmission mode and used for transmitting power of the power source to the rotating piece so that the rotating piece can rotate around the axial direction. The power source drives the rotating piece to rotate through the transmission unit, and the rotating piece drives the rotating object to rotate. The rotating piece is installed on the base instead of being directly installed on the power source, and the rotating piece can be penetrated in the axial direction. According to the rotary driving device, the penetrating channel allowing the connecting piece to penetrate and extend out is axially formed in the rotating piece, the rotating piece is connected with the rotating object, the connecting piece is connected with the fixed object, and therefore the rotary driving device can be used for driving the rotating object and can also be used for installing the fixed object, and the product design requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of rotary drive devices. BACKGROUND

[0002] Rotary drive device, as its name implies, is used to drive the rotation of device. Common rotating products in life, such as rotating light box, rotating lantern, rotating column at hair salon entrance, rotating ornaments, etc., their rotating functions are realized by rotary drive device. In the prior art, such rotary drive device mainly includes power source (motor) and transmission rod connected to the power output end of power source, one end of transmission rod is connected to power source, and the other end is connected to object, power source drives transmission rod to rotate, and transmission rod drives object to rotate, with simple structure.

[0003] With people's pursuit of the aesthetic degree of product, the pursuit of multifunctional product, it is needed to increase the installation of non-rotating fixed parts (such as decorative products with good appearance, luminous ball, aromatherapy box, mosquito repellent box, etc.) on rotating product for decoration or light or aromatherapy, etc. Therefore, how to design a rotary drive device capable of driving rotation while installing fixed parts is the technical problem to be solved by the utility model. CONTENT OF UTILITY MODEL

[0004] The main purpose of the utility model is to provide a kind of rotary drive device, to realize the function of driving rotation while being capable of installing fixed parts.

[0005] The utility model provides a kind of rotary drive device, including base, power source installed on the base, rotatable installation on the base for driving rotating object to rotate rotating part, transmission unit for transmitting the power of power source to rotating part to make it rotate around the axis is transmission connected between the power source and the rotating part;

[0006] The rotating part is axially provided with a through channel for the connection piece to pass through and extend out, and the connection piece is used to be connected with fixed object.

[0007] Preferably, the transmission unit is a transmission belt transmission structure or a gear transmission structure.

[0008] Preferably, the base is provided with a connecting groove for rotatingly installing the rotating part, and the connecting groove is composed of at least two detachable component parts.

[0009] Preferably, the power source is a motor, the power source is installed on the front end face of the base, the transmission unit is installed on the back face of the base, the rotating part penetrates to the back face of the base, and the power output shaft of the power source penetrates to the back face of the base.

[0010] Preferably, a convex ring is arranged on the rotating member, the end of the connecting slot has a smaller diameter than the inner diameter of the inner cavity of the connecting slot and the outer diameter of the convex ring, and the convex ring is rotatably limited in the inner cavity of the connecting slot, so that the rotating member is rotatably arranged on the base.

[0011] Preferably, bearings are arranged in the connecting slot, and the bearings are arranged on the rotating member at positions before and after the convex ring.

[0012] Preferably, the bearings are conductive bearings, the convex ring separates the at least two bearings to form a first bearing conductive unit and a second bearing conductive unit, the connecting slot and the rotating member are made of insulating material, the side wall of the connecting slot is provided with wire holes, the rotating member is axially provided with a wire slot, two first wires extend into the inner cavity of the connecting slot from the corresponding wire holes or the same wire hole, and are in contact with the first bearing conductive unit and the second bearing conductive unit for conduction; two second wires extend into the inner side of the conductive bearing from the wire slot, and are in contact with the first bearing conductive unit and the second bearing conductive unit for conduction.

[0013] Preferably, the connecting frame further comprises a main frame and an elastic buffer arranged on the main frame, the elastic buffer is a torsion spring structure, and comprises a spring ring, a fixed torsion arm arranged at one end of the spring ring, and a torsion input part arranged at the other end of the spring ring, the torsion input part is a sleeve structure matched with the rotating member, the main frame is provided with a mounting hole through which the rotating member penetrates, the inner cavity of the sleeve structure corresponds to the mounting hole, and the fixed torsion arm is fixed on the main frame; the rotating member penetrates the mounting hole and the sleeve structure, the rotating member is limited in the circumferential direction relative to the sleeve structure, and the rotating member drives the connecting frame to rotate through the sleeve structure.

[0014] Preferably, the connecting frame further comprises a buffer mounting cover, the main frame is provided with a buffer mounting slot, the mounting hole penetrates the buffer mounting slot, the elastic buffer is arranged in the buffer mounting slot, the buffer mounting slot is provided with a socket, the fixed torsion arm is inserted in the socket, the torsion input part is arranged in a cavity surrounded by the spring ring, the buffer mounting cover is connected with the main frame, the buffer mounting cover covers the buffer mounting slot and presses the elastic buffer in the buffer mounting slot, and the buffer mounting cover is provided with a through hole opposite to the sleeve structure.

[0015] Preferably, the rotating member is a non-circular column.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a rotary drive device, which comprises a base, a power source mounted on the base, a rotatable rotary member mounted on the base for driving a rotating object to rotate, a transmission unit connected between the power source and the rotary member for transmitting power of the power source to the rotary member to make the rotary member rotate around an axis, and a connecting member.

[0018] The rotary member is mounted on the base instead of being directly mounted on the power source, and the rotary member is axially penetrable. An axial through channel is arranged on the rotary member for the connecting member to extend out of the rotary member. The rotary member is connected with the rotating object, and the connecting member is connected with the fixed object, so that the rotary drive device can be used to drive the rotating object and install the fixed object, thereby meeting the product design requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Structure diagram of the rotary drive device of the embodiment of the utility model Figure One .

[0020] Figure 2 Structure diagram of the rotary drive device of the embodiment of the utility model Figure Two .

[0021] Figure 3 Bottom view of the rotary drive device of the embodiment of the utility model.

[0022] Figure 4 Structure exploded view of the rotary drive device of the embodiment of the utility model.

[0023] The implementation, functional features and advantages of the utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0024] The embodiments of the utility model will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation on the utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise", "have" and "include" or variations such as "comprises", "comprising", "including" and "includes", are intended to be inclusive or open-ended and do not exclude additional, unrecited elements or method steps; the use of terms such as "first", "second" and the like in the description herein is intended to indicate different sequentially or otherwise, and not to denote a particular order of, or importance to, the application.

[0026] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that an embodiment in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments.

[0027] With reference to Figures 1 to 4 The utility model discloses a kind of rotary drive devices, including base 1, power source 2 being mounted on base 1, rotatable installation on base 1 for driving rotating article rotation rotating member 3, transmission unit for transmitting the power of power source 2 to rotating member 3 to make it rotate around shaft is connected between power source 2 and rotating member 3. Power source 2 rotates rotating member 3 by transmission unit, rotating member 3 drives rotating article rotation, rotating article can be column shell, lantern shell, lamp box outer box etc.

[0028] Rotating member 3 is installed on base 1, not directly installed on power source 2, rotating member 3 axial can be penetrated. Rotating member 3 is axially provided with through channel 30 for connector penetrating and extending out, connector is installed by penetrating rotating member 3, one end of connector is fixed, can be fixed on the connecting frame of the bottom of base 1, also can be fixed on external member below base 1;The other end of connector is connected with fixed article, fixed article can be luminous body, decorative piece, aromatherapy box etc.

[0029] By rotating member 3 and rotating article connection, connector and fixed article connection, so as to realize in rotary drive device can be used to drive rotating article, can also install fixed article, to meet product design demand.In assembled product, fixed article can be located in the inner cavity of rotating article or extend in the outside of rotating article.

[0030] The transmission unit can adopt a transmission belt transmission structure or a gear transmission structure. The transmission unit in the embodiment is a gear transmission structure, which comprises a driving gear 41 mounted on the power output shaft 21 of the power source 2 and a driven gear 42 mounted on the rotating member 3. The driving gear 41 drives the driven gear 42 to rotate, thereby driving the rotating member 3 to rotate.

[0031] The base 1 is provided with a connecting groove 10 for rotatably mounting the rotating member 3. The connecting groove 10 is composed of at least two detachable component parts, so that the rotating member 3 can be detached from the connecting groove 10, facilitating the replacement of the rotating member 3. Users can select ordinary rotating members 3 (without the through channel 30) and the rotating member 3 with the through channel 30 in the embodiment according to the design requirements of products.

[0032] The power source 2 is an electric motor, which is mounted on the front end face of the base 1. The transmission unit is mounted on the back face of the base 1. The rotating member 3 penetrates through the back face of the base 1. The power output shaft 21 of the power source 2 penetrates through the back face of the base 1. The transmission unit is connected to the rotating member 3 and the power source 2 on the back face of the base 1. The electric motor and the transmission unit are separately mounted on the front face and the back face of the base 1, respectively, which is reasonable and can reduce the size of the rotating drive device.

[0033] The base 1 is provided with a connecting hole. The rotating drive device is mounted on a product (such as a light box or a lantern) through the connecting hole on the base 1.

[0034] The base 1 in the embodiment is formed by two spliced plates 11 spliced by screws. The component parts of the connecting groove 10 are semicircular grooves 101, which are arranged on the two spliced plates 11, respectively. The two semicircular grooves 101 are combined to form a circular connecting groove 10.

[0035] The rotating member 3 is a long column. A convex ring 31 is arranged around the rotating member 3. The end diameter of the connecting groove 10 is smaller than the inner diameter of the inner cavity and the outer diameter of the convex ring 31. The convex ring 31 is mounted in the inner cavity of the connecting groove 10. The convex ring 31 cannot protrude out of the two ends of the connecting groove 10 and is limited in the connecting groove 10, but can rotate in the connecting groove 10. The convex ring 31 is rotatably limited in the inner cavity of the connecting groove 10, so that the rotating member 3 is rotatably mounted on the base 1.

[0036] Bearings are mounted in the connecting groove 10. The outer diameter of the bearings is greater than the end diameter of the connecting groove 10. Two bearings are arranged on the rotating member 3 at positions before and after the convex ring 31, and the convex ring 31 is located between the two bearings. The rotating member 3 rotates in the connecting groove 10 through the bearings.

[0037] The bearing is a conductive bearing, and the convex ring 31 separates the two bearings to form a first bearing conductive unit and a second bearing conductive unit. The base 1, the connecting groove 10, and the rotating piece 3 are made of insulating material, the side wall of the connecting groove 10 is provided with wire holes 102 respectively opposite to the two conductive bearings, the rotating piece 3 is axially provided with a wire groove 32, two first wires extend into the inner cavity of the connecting groove 10 from the corresponding wire holes 102 respectively, and are in contact with the two conductive bearings for conduction; two second wires extend into the inner side of the conductive bearing from the wire groove 32, and are in contact with the two conductive bearings for conduction respectively, and the second wire rotates with the rotating piece 3. The first wire is used for electrical connection with the external control power supply, and the second wire is used for electrical connection with the electric appliance (such as a light-emitting plate) on the rotating object, so as to realize the electrical connection between the electric appliance and the control power supply.

[0038] The rotating driving device further comprises a connecting frame mounted on the rotating piece 3 and used for connecting the rotating object, and the rotating object is received by the connecting frame.

[0039] The connecting frame comprises a main frame and an elastic buffer mounted on the main frame, the main frame is used for receiving the rotating object, and the elastic buffer is used for providing a buffer force for starting and stopping the rotation, so that the starting and stopping of the rotation is more stable.

[0040] The elastic buffer is mounted at the rotating shaft center position of the connecting frame. The elastic buffer is a torsion spring structure, comprising a spring ring, a fixed torsion arm provided at one end of the spring ring, and a torsion input part provided at the other end of the spring ring. The torsion input part is a sleeve structure matched with the rotating piece 3. The main frame is provided with a mounting hole through which the rotating piece 3 penetrates, and the inner cavity of the sleeve structure corresponds to the mounting hole. The fixed torsion arm is fixed on the main frame, the rotating piece 3 penetrates through the mounting hole and the sleeve structure, the rotating piece 3 is limited in the circumferential direction relative to the sleeve structure, and the rotating piece 3 drives the sleeve structure to rotate, thereby driving the connecting frame to rotate.

[0041] The rotating piece 3 is provided as a non-circular column, such as an elliptical column, a square column, a flat circular column, etc. The inner cavity of the sleeve structure is matched with the shape of the rotating piece 3, the rotating piece 3 penetrates into the sleeve structure, and the two are limited in the circumferential direction relative to each other, and the rotating piece 3 rotates with the sleeve structure.

[0042] In order to make the installation of the elastic buffer more stable, the connecting frame further comprises a buffer mounting cover. The main frame is provided with a buffer mounting groove, the mounting hole penetrates through the buffer mounting groove, and the elastic buffer is mounted in the buffer mounting groove. The buffer mounting groove is provided with a socket, and the fixed torsion arm is inserted into the socket. The torsion input part is arranged in the cavity surrounded by the spring ring. The buffer mounting cover is connected with the main frame, covers the buffer mounting groove, and presses the elastic buffer inside. The buffer mounting cover is provided with a through hole opposite to the sleeve structure, the rotating piece 3 extends out of the through hole, and the connecting piece extends out of the rotating piece 3.

[0043] When the rotating member 3 starts to rotate, the sleeve structure first applies force to the torsion spring structure, and then drives the connecting frame and the rotating member to rotate; when the rotating member 3 stops rotating, the rotating force of the rotating member under the action of inertia is applied to the torsion spring structure; the torsion spring structure can buffer the applied force when the rotation starts and stops, so that the start and stop of the rotation are more stable.

[0044] The above examples are only used to illustrate the technical solutions of the present application, and do not limit the protection scope of the present application. Obviously, the described examples are only some of the embodiments of the present application, not all the embodiments. Based on these examples, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above examples, those skilled in the art can still combine, add or delete the features in the embodiments of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also belong to the scope of the present application.

Claims

1. A rotary drive apparatus characterized by comprising: The base, the power source, the rotatable rotating member, the transmission unit, the connecting member, the transmission belt transmission structure or the gear transmission structure, the circular connecting groove, the through channel, the at least two bearings, the electrically conductive bearings, the first bearing electrically conductive unit and the second bearing electrically conductive unit, the wire hole, the wire groove, the first wires and the second wires, the connecting frame, the main frame, the elastic buffer, the torsion spring structure, the fixed torsion arm, the torsion input part, the sleeve structure, the installation hole, the sleeve structure inner cavity, the fixed torsion arm, the rotating member and the sleeve structure, and the rotating member and the sleeve structure are disclosed. The base, the power source, the rotatable rotating member, the transmission unit, the connecting member, the transmission belt transmission structure or the gear transmission structure, the circular connecting groove, the through channel, the at least two bearings, the electrically conductive bearings, the first bearing electrically conductive unit and the second bearing electrically conductive unit, the wire hole, the wire groove, the first wires and the second wires, the connecting frame, the main frame, the elastic buffer, the torsion spring structure, the fixed torsion arm, the torsion input part, the sleeve structure, the installation hole, the sleeve structure inner cavity, the fixed torsion arm, the rotating member and the sleeve structure, and the rotating member and the sleeve structure are disclosed.

2. The rotary drive device according to claim 1, characterized in that The base, the power source, the rotatable rotating member, the transmission unit, the connecting member, the transmission belt transmission structure or the gear transmission structure, the circular connecting groove, the through channel, the at least two bearings, the electrically conductive bearings, the first bearing electrically conductive unit and the second bearing electrically conductive unit, the wire hole, the wire groove, the first wires and the second wires, the connecting frame, the main frame, the elastic buffer, the torsion spring structure, the fixed torsion arm, the torsion input part, the sleeve structure, the installation hole, the sleeve structure inner cavity, the fixed torsion arm, the rotating member and the sleeve structure, and the rotating member and the sleeve structure are disclosed.

3. The rotary drive device according to claim 2, characterized in that The base, the power source, the rotatable rotating member, the transmission unit, the connecting member, the transmission belt transmission structure or the gear transmission structure, the circular connecting groove, the through channel, the at least two bearings, the electrically conductive bearings, the first bearing electrically conductive unit and the second bearing electrically conductive unit, the wire hole, the wire groove, the first wires and the second wires, the connecting frame, the main frame, the elastic buffer, the torsion spring structure, the fixed torsion arm, the torsion input part, the sleeve structure, the installation hole, the sleeve structure inner cavity, the fixed torsion arm, the rotating member and the sleeve structure, and the rotating member and the sleeve structure are disclosed.

4. The rotary drive device according to claim 3, characterized in that The base, the power source, the rotatable rotating member, the transmission unit, the connecting member, the transmission belt transmission structure or the gear transmission structure, the circular connecting groove, the through channel, the at least two bearings, the electrically conductive bearings, the first bearing electrically conductive unit and the second bearing electrically conductive unit, the wire hole, the wire groove, the first wires and the second wires, the connecting frame, the main frame, the elastic buffer, the torsion spring structure, the fixed torsion arm, the torsion input part, the sleeve structure, the installation hole, the sleeve structure inner cavity, the fixed torsion arm, the rotating member and the sleeve structure, and the rotating member and the sleeve structure are disclosed.

5. The rotary drive device according to claim 3, characterized in that The base, the power source, the rotatable rotating member, the transmission unit, the connecting member, the transmission belt transmission structure or the gear transmission structure, the circular connecting groove, the through channel, the at least two bearings, the electrically conductive bearings, the first bearing electrically conductive unit and the second bearing electrically conductive unit, the wire hole, the wire groove, the first wires and the second wires, the connecting frame, the main frame, the elastic buffer, the torsion spring structure, the fixed torsion arm, the torsion input part, the sleeve structure, the installation hole, the sleeve structure inner cavity, the fixed torsion arm, the rotating member and the sleeve structure, and the rotating member and the sleeve structure are disclosed.

6. The rotary drive device according to claim 5, characterized in that ​ 7. The rotary drive device according to claim 6, characterized in that ​ 8. The rotary drive device according to any one of claims 1 to 7, characterized in that ​ 9. The rotary drive device according to claim 8, characterized in that The connecting frame further comprises a buffer mounting cover, the main frame is provided with a buffer mounting slot, the mounting hole penetrates through the buffer mounting slot, the elastic buffer is mounted in the buffer mounting slot, the buffer mounting slot is provided with a insertion hole, the fixed torsion arm is inserted in the insertion hole, the torsion input part is arranged in the cavity surrounded by the spring ring, the buffer mounting cover is connected with the main frame, the buffer mounting cover covers the buffer mounting slot and presses the elastic buffer inside, the buffer mounting cover is provided with a through hole opposite to the sleeve structure.

10. The rotary drive device according to claim 9, characterized in that The rotating member is a non-circular column.

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