CN216343721U

CN216343721U - Gearbox structure and illumination lamp

Info

Publication number: CN216343721U
Application number: CN202122760653.8U
Authority: CN
Inventors: 李贤屏
Original assignee: Dongguan Aplus Lighting Technology Co ltd
Current assignee: Dongguan Aplus Lighting Technology Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-04-19
Anticipated expiration: 2031-11-11

Abstract

The application discloses gearbox structure and illumination lamps and lanterns belongs to the lighting technology field. The gearbox structure comprises a driving gear, a driven gear set, a driving motor and a gearbox output shaft, wherein the driving gear is fixedly arranged on a motor shaft of the driving motor, the driven gear set comprises an outer gear and an inner gear, the outer diameter of the outer gear is larger than that of the driving gear, and the outer gear is meshed with the driving gear; the inner gear is fixedly arranged on the output shaft of the gearbox and is elastically assembled on the surface of one side of the outer gear in a pressing way; a plurality of convex points and a plurality of grooves are clamped between the contact surfaces of the inner gear and the outer gear, the convex points and the grooves are arranged around the center of the inner gear or the outer gear, and the convex points and the grooves are correspondingly clamped and matched one by one under the elastic pressing effect. This technical scheme, it can effectively solve current gearbox structure and appear the technical problem that big moment swings fast and damage the gear easily when reverse work.

Description

Gearbox structure and illumination lamp

Technical Field

The application relates to the technical field of lighting, in particular to a gearbox structure and a lighting lamp.

Background

At present, most lamps with the remote control swing angle function in the market use direct current motors, and because the direct current motors have the characteristics of high speed, small torque and the like, when the remote control swing angle is realized through the direct current motors, the speed needs to be reduced and the torque needs to be increased through a gearbox. Most of the existing gearbox structures are connected with a motor and a lamp through rigid gears. Therefore, the transmission case is converted into the low-speed large torque from the high-speed small torque transmitted by the motor to the lamp part, and in some occasions, if a user manually swings the lamp in an unpowered state or falls on the ground carelessly and moves to the rigidly connected lamp part, the transmission case can work reversely, at the moment, the transmission case is easy to damage under the condition of large torque quick swing, and particularly, the gear in the transmission case is easy to break.

SUMMERY OF THE UTILITY MODEL

The application mainly aims to provide a gearbox structure and a lighting lamp, and aims to solve the technical problem that a gear is damaged by large-torque quick swing when an existing gearbox structure works reversely easily.

In order to achieve the above object, the present application provides a transmission structure, where the transmission structure includes a driving gear, a driven gear set, a driving motor and a transmission output shaft, the driving gear is fixedly disposed on a motor shaft of the driving motor, the driven gear set includes an external gear and an internal gear, an outer diameter of the external gear is greater than an outer diameter of the driving gear, and the external gear is meshed with the driving gear; the inner gear is fixedly arranged on the output shaft of the gearbox and is elastically assembled on the surface of one side of the outer gear in a pressing way; the elastic pressing device is characterized in that a plurality of convex points and a plurality of grooves are clamped between contact surfaces of the inner gear and the outer gear, the plurality of convex points and the plurality of grooves are arranged around the center of the inner gear or the outer gear, and the plurality of convex points and the plurality of grooves are correspondingly clamped and matched one by one under the elastic pressing effect.

Optionally, the inner gear is elastically press-fitted on one side surface of the outer gear by the engagement of a manganese steel wave washer with a slip nut.

Optionally, the maximum axial elastic deformation amount of the manganese steel wave washer is 0.8-1.2 mm.

Optionally, the height of the salient point is 0.4-0.6 mm.

Optionally, an object to be adjusted in angle is fixedly arranged at one end of the output shaft of the gearbox, and the inner gear is elastically press-fit-assembled on the surface of one side, far away from the object to be adjusted, of the outer gear.

Optionally, the outer diameter of the inner gear is larger than the outer diameter of the driving gear, and the outer diameter of the inner gear is smaller than the outer diameter of the outer gear.

Alternatively, the plurality of convex points are provided on a side surface of the inner gear contacting the outer gear, and the plurality of concave grooves are provided on a side surface of the outer gear contacting the inner gear.

Alternatively, the plurality of convex points are provided on a side surface of the outer gear contacting the inner gear, and the plurality of concave grooves are provided on a side surface of the inner gear contacting the outer gear.

Optionally, the bumps are dot structures, and the grooves are circular groove structures.

In addition, in order to realize above-mentioned purpose, this application still provides an illumination lamps and lanterns, illumination lamps and lanterns include lamp body component and foretell gearbox structure, lamp body component set firmly in keep away from on the gearbox output shaft the one end of internal gear.

The gearbox structure comprises a driving gear, a driven gear set, a driving motor and a gearbox output shaft, wherein the driving gear is fixedly arranged on a motor shaft of the driving motor, the driven gear set comprises an outer gear and an inner gear, the outer diameter of the outer gear is larger than that of the driving gear, and the outer gear is meshed with the driving gear; the inner gear is fixedly arranged on the output shaft of the gearbox and is elastically assembled on the surface of one side of the outer gear in a pressing way; a plurality of convex points and a plurality of grooves are clamped between the contact surfaces of the inner gear and the outer gear, the convex points and the grooves are arranged around the center of the inner gear or the outer gear, and the convex points and the grooves are correspondingly clamped and matched one by one under the elastic pressing effect. When the gear box structure realizes the swing angle function by applying the lighting lamp, the lamp body component of the lighting tool is fixedly arranged on the gear box output shaft of the gear box structure. At this moment, if this gearbox structure normal circular telegram work, then driving motor's motor shaft passes through high-speed rotation, drives driving gear, external gear, internal gear in proper order (because internal gear elasticity pressfitting assembly is on one side surface of external gear, and a plurality of bumps and a plurality of recess between the internal gear and the contact surface of external gear are the one-to-one card of elasticity pressfitting effect and are established the cooperation, make the internal gear can rotate under the drive of external gear) and gearbox output shaft rotate to turn into low-speed big moment to high-speed little moment, and then realize the rotation of lamp body part. If this gearbox structure does not circular telegram reverse work, then when the light body part left and right sides pivot angle, the gearbox output shaft drives the internal gear and rotates, and simultaneously, because internal gear elasticity pressfitting assembly is on one side surface of external gear, and a plurality of bumps and a plurality of recess between the contact surface of internal gear and external gear one-to-one card under the elasticity pressfitting effect establish the cooperation, when the pivot angle dynamics is greater than elasticity pressfitting effort, a plurality of bumps are along a plurality of recess relative slip, make the external gear can not follow the internal gear and rotate, thereby make the driving gear also can not follow the external gear and rotate, finally realize the guard action to motor and gearbox. Therefore, according to the technical scheme, the technical problem that the gear is damaged by large-torque quick swing when the conventional gearbox structure works reversely easily can be effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a lighting fixture according to an embodiment of the present application.

Fig. 2 is a schematic partial structure view of the lighting fixture shown in fig. 1.

Fig. 3 is a partially disassembled schematic view of the lighting fixture shown in fig. 1.

Fig. 4 is another angle schematic view of a partial structure of the lighting fixture shown in fig. 3.

Detailed Description

The following further describes embodiments of the present application with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present application, but the present application is not limited thereto. In addition, the technical features mentioned in the embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 4, an illumination lamp 1 according to an embodiment of the present disclosure includes a lamp body assembly 100 and a transmission structure 200, where the transmission structure 200 includes a driving gear 210, a driven gear set 220, a driving motor 230 and a transmission output shaft 240, the driving gear 210 is fixed on a motor shaft of the driving motor 230, the driven gear set 220 includes an external gear 221 and an internal gear 222, an outer diameter of the external gear 221 is larger than an outer diameter of the driving gear 210, and the external gear 221 is engaged with the driving gear 210. The internal gear 222 is fixed on the transmission output shaft 240, and the internal gear 222 is elastically press-fitted on one side surface of the external gear 221. A plurality of salient points 21 and a plurality of grooves 22 are clamped between the contact surfaces of the internal gear 222 and the external gear 221, the plurality of salient points 21 and the plurality of grooves 22 are all arranged around the center of the internal gear 222 or the external gear 221, the plurality of salient points 21 and the plurality of grooves 22 are correspondingly clamped and matched one by one under the elastic pressing effect, and the lamp body assembly 100 is fixedly arranged at one end of the transmission output shaft 240 far away from the internal gear 230.

In this embodiment, as shown in fig. 1 and fig. 2, in order to protect the driving gear 210, the driven gear set 220, the driving motor 230 and the transmission output shaft 240 to a certain extent, the transmission structure 200 further includes a transmission case 250, and the driving gear 210, the driven gear set 220, the driving motor 230 and the transmission output shaft 240 are all disposed in the transmission case 250. The lamp body assembly 100, as an object to be adjusted in angle, may be fixed on the output shaft 240 of the transmission case through a structure such as a bearing, or may form an integrated structure with the output shaft 240 of the transmission case. The inner gear 222 is preferably elastically press-fitted on a side surface of the outer gear 221 away from the object to be angled (i.e., the lamp body assembly 100). The inner gear 222 of the present application is substantially a disk structure, i.e., the outer circumference thereof is free of any tooth structure.

As shown in fig. 2 to 4, the inner gear 222 is preferably elastically press-fitted on one side surface of the outer gear 221 through the engagement of the manganese steel wave washer 23 and the slip-proof nut 24, so that the inner gear 222 is closely attached to one side surface of the outer gear 221 through the elastic pressing action of the manganese steel wave washer 23, and the plurality of protrusions 21 are correspondingly engaged in the plurality of grooves 22. The manganese steel wave washer 23 is specifically an elastic sheet which is made of manganese steel and is subjected to wave-shaped deformation in the axial direction, and the maximum axial elastic deformation amount of the elastic sheet is 0.8-1.2 mm, preferably 1 mm. Meanwhile, the height of the salient point 21 is 0.4-0.6 mm, and preferably 0.5 mm. The outer diameter of the inner gear 222 is larger than that of the driving gear 210, and the outer diameter of the inner gear 222 is smaller than that of the outer gear 221. The protrusions 21 are provided on a side surface of the internal gear 222 contacting the external gear 221, and the grooves 22 are provided on a side surface of the external gear 221 contacting the internal gear 222.

In operation, as shown in fig. 3 and 4, if the transmission structure 200 is normally powered on, the motor shaft of the driving motor 230 sequentially drives the driving gear 210, the external gear 221, the internal gear 222 (because the internal gear 222 is elastically press-fit-assembled on a side surface of the external gear 221, and the plurality of protrusions 21 and the plurality of grooves 22 between the contact surfaces of the internal gear 222 and the external gear 221 are in one-to-one corresponding snap-fit engagement under the elastic press-fit action, so that the internal gear 222 can be driven by the external gear 221 to rotate) and the transmission output shaft 240 to rotate, so as to convert a high-speed small torque into a low-speed large torque, thereby achieving rotation of the lamp body assembly 100. If the transmission structure 200 does not work reversely when being powered on, the transmission output shaft 240 drives the inner gear 222 to rotate when the lamp body assembly 200 swings left and right, because the torque of the motor transmission is very large, the combination of the inner gear 222 and the outer gear 221 plays a role of preventing the motor from being damaged when swinging, the working principle is as follows, in the original state, the salient points 21 and the grooves 22 are in the inosculated state, taking the maximum axial elastic deformation of the manganese steel wave washer 23 as 1mm and the height of the salient points as 0.5mm as an example, when the swinging force is greater than the elastic acting force of the manganese steel wave washer 23, any salient point 21 will go to the platform between the original groove 22 and the next groove 22, the manganese steel wave washer 23 is compressed by 0.5mm, and then force is applied, any salient point 21 will go to the corresponding position of the next groove 22, that is, if any salient point 21 slides relatively along a plurality of grooves 22, thereby reaching the swinging angle of the lamp body, the inner gear 222 rotates, and the outer gear 221 and the driving gear 210 do not rotate, so that the motor and the gearbox are protected.

It is obvious to those skilled in the art that the plurality of protrusions 21 of the present application may also be provided on a side surface of the outer gear 221 contacting the inner gear 222, in which case the plurality of grooves 22 are provided on a side surface of the inner gear 222 contacting the outer gear 221. In addition, in order to facilitate the relative sliding of the plurality of protrusions 21 along the plurality of grooves 22, the protrusions 21 are preferably in a dot structure, and the grooves 22 are preferably in a circular groove structure.

The embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the application, and the scope of the application is to be accorded the full scope of the claims.

Claims

1. A gearbox structure is characterized by comprising a driving gear, a driven gear set, a driving motor and a gearbox output shaft, wherein the driving gear is fixedly arranged on a motor shaft of the driving motor, the driven gear set comprises an outer gear and an inner gear, the outer diameter of the outer gear is larger than that of the driving gear, and the outer gear is meshed with the driving gear; the inner gear is fixedly arranged on the output shaft of the gearbox and is elastically assembled on the surface of one side of the outer gear in a pressing way; the elastic pressing device is characterized in that a plurality of convex points and a plurality of grooves are clamped between contact surfaces of the inner gear and the outer gear, the plurality of convex points and the plurality of grooves are arranged around the center of the inner gear or the outer gear, and the plurality of convex points and the plurality of grooves are correspondingly clamped and matched one by one under the elastic pressing effect.

2. The transmission structure according to claim 1, wherein the inner gear is elastically press-fitted on one side surface of the outer gear by a mating elastic press-fit of a manganese steel wave washer and a slip nut.

3. The gearbox structure according to claim 2, wherein the manganese steel wave washer has a maximum axial elastic deformation amount of 0.8-1.2 mm.

4. The transmission structure according to claim 3, wherein the height of the salient point is 0.4-0.6 mm.

5. The transmission case structure according to claim 1, wherein an object to be angle-adjusted is fixedly arranged at one end of the output shaft of the transmission case, and the internal gear is elastically press-fitted on a surface of one side of the external gear, which is far away from the object to be angle-adjusted.

6. The transmission structure according to claim 1, wherein an outer diameter of the inner gear is larger than an outer diameter of the drive gear, and an outer diameter of the inner gear is smaller than an outer diameter of the outer gear.

7. The transmission structure according to claim 1, wherein the plurality of convex points are provided on a side surface of the internal gear that contacts the external gear, and the plurality of concave grooves are provided on a side surface of the external gear that contacts the internal gear.

8. The transmission structure according to claim 1, wherein the plurality of convex points are provided on a side surface of the external gear that contacts the internal gear, and the plurality of concave grooves are provided on a side surface of the internal gear that contacts the external gear.

9. A gearbox construction according to any one of claims 1 to 8, characterised in that said elevations are of a circular dot configuration and said recesses are of a circular groove configuration.

10. A lighting device, characterized in that, the lighting device comprises a lamp body component and the gear box structure according to any one of claims 1 to 9, the lamp body component is fixedly arranged at one end of the gear box output shaft far away from the internal gear.