CN214314835U

CN214314835U - Small reduction gearbox

Info

Publication number: CN214314835U
Application number: CN202120613775.1U
Authority: CN
Inventors: 韩彪
Original assignee: Shenzhen Bovi Photoelectric Technology Co ltd
Current assignee: Shenzhen Bovi Photoelectric Technology Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-09-28
Anticipated expiration: 2031-03-25

Abstract

The utility model discloses a small-size reducing gear box, including box and driving motor, driving motor's side is equipped with the fixed abrupt piece of more than one outside salient, be equipped with on the box with the fixed driving motor's of fixed abrupt piece cooperation rotatory bracket, rotatory bracket is equipped with more than one, leave installation gap between the rotatory bracket, installation gap's size is greater than the width of fixed abrupt piece. The utility model discloses a small-size gearbox utilizes rotatory bracket to replace screw fixation driving motor, can effectively avoid appearing leaking the lock that can appear when the screw lock attaches, smooth tooth scheduling problem, and the simple installation only needs simple rotation just can fixed column driving motor moreover, can save a large amount of mounting screw's man-hour and station, can effectual improvement production efficiency, saves manufacturing cost.

Description

Small reduction gearbox

Technical Field

The utility model relates to a camera lens drive arrangement field that zooms, concretely relates to small-size reducing gear box.

Background

The reduction gearbox is generally used for driving the lens to move back and forth for focusing and zooming, and a driving motor and a reduction gear are arranged on the reduction gearbox. The existing reduction gearbox generally adopts a screw to fix the driving motor, but due to the size limitation of a camera device, the reduction gearbox is small in size, the screw for fixing the driving motor needs to be made smaller, the situation of sliding teeth is easy to occur during installation, and the problem of lock missing is easy to occur due to the fact that the reduction gearbox is arranged in a fine place.

Disclosure of Invention

To the current reducing gear box among the above-mentioned prior art utilize the condition such as missing lock, smooth tooth to appear easily of fix with screw driving motor, the utility model provides a small-size gearbox, driving motor and box are connected through a rotating bracket, need not to use the screw, can effectively avoid appearing missing lock, the smooth tooth scheduling problem that can appear when the screw lock attaches.

The utility model provides a technical scheme that its technical problem adopted is: the small reduction gearbox comprises a box body and a driving motor, wherein more than one fixing protruding block protruding outwards is arranged on the side face of the driving motor, a rotating bracket matched with the fixing protruding blocks to fix the driving motor is arranged on the box body, more than one rotating bracket is arranged, an installation gap is reserved between the rotating brackets, and the size of the installation gap is larger than the width of the fixing protruding blocks.

The utility model provides a technical scheme that its technical problem adopted further still includes:

according to the small gearbox, the rotating bracket comprises a bearing part and a connecting part, the bearing part supports the fixing lug, and the connecting part is connected with the box body and the bearing part.

According to the small gearbox, the supporting part of the rotating bracket is provided with the cambered surface matched with the radian of the shell of the driving motor.

According to the small gearbox, the bearing part is arranged along the circumferential direction of the driving motor, one end of the bearing part is a contact end, the other end of the bearing part is a fixed end, the surface of the bearing part, abutted to the fixed protruding block, is a bearing surface, and the shape of the connecting part arranged on one side of the fixed end is matched with that of the fixed protruding block.

According to the small gearbox, the bearing surface is provided with the limiting reverse buckle for limiting the circumferential movement of the fixing lug, and the limiting reverse buckle is arranged on the bearing surface or the connecting part opposite to the contact end.

According to the small gearbox, the bearing surface is provided with the arc clamping strip, the arc clamping strip extends from the contact end to the fixed end, and the top of the arc clamping strip, which is abutted against the fixed protruding block, is in an arc shape.

In the above small transmission, the rotating brackets are circumferentially distributed around the driving motor.

The small gearbox comprises a base in a circular arc shape and a cover plate in a shape matched with the base in shape, wherein an accommodating cavity for installing the reduction gear set is formed in the base, the cover plate is arranged at an opening of the accommodating cavity, a buckle is arranged at the edge of the cover plate, a clamping block matched with the buckle is arranged on the outer surface of the box body, and the buckle is buckled on the clamping block to enable the cover plate to be fixed at the opening of the accommodating cavity.

The two ends of the base are respectively provided with the driving motor, the driving motor is arranged on the back face of the base, the bottom of the base is provided with the through hole in the position corresponding to the driving motor, the driving motor shaft of the driving motor is connected with the reduction gear set of the base through the through hole, the back face of the base is correspondingly provided with two driving motor installation positions, and each driving motor installation position comprises two rotating brackets distributed in the circumferential direction.

The utility model has the advantages that: the utility model discloses a small-size gearbox utilizes rotatory bracket to replace screw fixation driving motor, can effectively avoid appearing leaking the lock, the smooth tooth scheduling problem that can appear when the screw lock attaches, and simple installation moreover, only need simple rotation just can the fixed column driving motor, can save the man-hour and the station of a large amount of installation screws, can effectual improvement production efficiency, save manufacturing cost; the supporting part of the rotary bracket is also provided with an inverted buckle for preventing the circumferential movement of the driving motor and an arc clamping strip for absorbing the axial clearance of the driving motor, so that the driving motor can be firmly and tightly arranged on the box body.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the compact reduction gearbox of the present invention;

FIG. 2 is a schematic view of the explosion structure of the preferred embodiment of the small reduction gearbox of the present invention;

FIG. 3 is a schematic structural view of a box body in a preferred embodiment of the small reduction gearbox of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

in the figure, 1, a box body, 11, a rotating bracket, 111, a supporting part, 1111, a contact end, 1112, a fixed end, 1113, a bearing surface, 1115, an arc clamping strip, 112, a connecting part, 12, a through hole, 13, a clamping block, 2, a driving motor, 21, a fixed lug, 3, a cover plate, 31, a clamping buckle, 4, a speed reduction gear set, 5 and a wire group.

Detailed Description

The embodiment is a preferred embodiment of the present invention, and other principles and basic structures are the same as or similar to those of the embodiment, and are within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

The preferred embodiment of the small reduction gearbox of the utility model is shown by referring to fig. 1-4, and comprises a box body 1, a driving motor 2, a cover plate 3, a reduction gear group 4 and a wire group 5. In this implementation, box 1 is arc, and box 1 is inside to be equipped with the holding chamber of installation reduction gear group 4, and apron 3 sets up the opening in the holding chamber, and the both ends of box 1 are equipped with a driving motor 2 respectively, and driving motor 2 sets up the back at box 1, and wire group 5 is connected with driving motor 2 electricity. In order to facilitate the driving of the reduction gear set 4 by the driving motor 2, a through hole 12 is formed in the bottom of the box body 1 at a position corresponding to the driving motor 2, and a shaft of the driving motor 2 is connected with the reduction gear set 4 of the box body 1 through the through hole 12. In order to fix the driving motor 2, two driving motor mounting positions are correspondingly arranged on the back surface of the box body 1, and each driving motor mounting position comprises two rotating brackets 11 which are distributed circumferentially. Two sides of the driving motor 2 are respectively provided with a fixing protrusion 21 protruding outwards, the rotating bracket 11 is matched with the fixing protrusion 21, an installation gap is reserved between the rotating brackets 11, and the size of the installation gap is larger than the width of the fixing protrusion 21, so that the fixing protrusion 21 can be embedded into the rotating bracket 11 through the installation gap. In this embodiment, the rotating bracket 11 includes a supporting portion 111 and a connecting portion 112, the supporting portion 111 supports the fixing protrusion 21, and the connecting portion 112 connects the case 1 and the supporting portion 111.

In order to tightly limit the position of the driving motor 2, the supporting portion 111 of the rotating bracket 11 is provided with an arc surface which is matched with the radian of the shell of the driving motor 2, and the arc surface can be abutted against the shell of the driving motor 2 after the driving motor 2 is installed in place.

In order to avoid the excessive rotation width when the driving motor 2 is rotatably mounted in the rotating bracket 11 and the driving motor 2 is separated from the rotating bracket 11, the supporting portion 111 of the present embodiment is disposed along the circumferential direction of the driving motor 2, one end of the supporting portion 111 is a contact end 1111, the other end of the supporting portion 111 is a fixed end 1112, a surface of the supporting portion 111 abutting against the fixing protrusion 21 is a receiving surface 1113, and the shape of the connecting portion 112 disposed on the side of the fixed end 1112 matches the shape of the fixing protrusion 21, so that the fixing protrusion 21 cannot rotate forward.

The bearing surface 1113 is provided with an arc clamping strip 1115, the arc clamping strip 1115 extends from the contact end 1111 to the fixed end 1112, and the top of the arc clamping strip 1115, which is abutted to the fixed lug 21, is arc-shaped, so that the circumferential gap of a motor shaft can be absorbed, and the situation that the driving motor 2 is loosened to influence the operation of a reduction gearbox is avoided.

In practical production, in order to prevent the fixing protrusion 21 mounted on the rotating bracket 11 from coming off in use, a limit reverse buckle for limiting the circumferential movement of the fixing protrusion 21 may be further provided on the receiving surface 1113 or the connecting portion 112 opposite to the contact end, so as to prevent the fixing protrusion 21 from rotating reversely and the driving motor 2 from coming off in the circumferential direction.

When mounting, the operator can mount the fixing protrusion 21 on the receiving portion 111 of the rotating bracket 11 and firmly lock it by aligning the mounting gap between the fixing protrusion 21 of the driving motor 2 and the rotating bracket 11, mounting the driving motor 2 between the rotating brackets 11, and then rotating the driving motor 2.

The utility model discloses a small-size gearbox utilizes rotatory bracket to replace screw fixation driving motor, can effectively avoid appearing leaking the lock, the smooth tooth scheduling problem that can appear when the screw lock attaches, and simple installation moreover, only need simple rotation just can the fixed column driving motor, can save the man-hour and the station of a large amount of installation screws, can effectual improvement production efficiency, save manufacturing cost; the supporting part of the rotary bracket is also provided with an inverted buckle for preventing the circumferential movement of the driving motor and an arc clamping strip for absorbing the axial clearance of the driving motor, so that the driving motor can be firmly and tightly arranged on the box body.

Claims

1. The small reduction gearbox is characterized by comprising a box body (1) and a driving motor (2), wherein more than one fixing protruding block (21) protruding outwards is arranged on the side face of the driving motor (2), a rotating bracket (11) which is matched with the fixing protruding block (21) to fix the driving motor (2) is arranged on the box body (1), more than one rotating bracket (11) is arranged, an installation gap is reserved between the rotating brackets (11), and the size of the installation gap is larger than the width of the fixing protruding block (21).

2. The compact reduction gearbox according to claim 1, characterised in that the rotating bracket (11) comprises a bearing portion (111) and a connecting portion (112), the bearing portion (111) supporting the fixing lug (21), the connecting portion (112) connecting the box body (1) and the bearing portion (111).

3. The compact reduction gearbox according to claim 2, characterised in that the bearing (111) of the rotating bracket (11) is provided with an arc surface conforming to the arc of the housing of the drive motor (2).

4. The small reduction gearbox according to claim 2, characterized in that the bearing part (111) is arranged along the circumference of the driving motor (2), one end of the bearing part (111) is a contact end (1111), the other end of the bearing part (111) is a fixed end (1112), the surface of the bearing part (111) which is abutted against the fixed lug (21) is a bearing surface (1113), and the shape of the connecting part (112) arranged at one side of the fixed end (1112) is matched with the shape of the fixed lug (21).

5. A small reduction gearbox according to claim 4, characterised in that the rotating bracket (11) is provided with a limit undercut limiting the circumferential movement of the fixed lug (21), said limit undercut being provided on the bearing surface (1113) or on the connection portion (112) opposite to the contact end (1111).

6. The small reduction gearbox according to claim 4, characterized in that the bearing surface (1113) is provided with an arc clamping strip (1115), the arc clamping strip (1115) extends from the contact end (1111) to the fixed end (1112), and the top of the arc clamping strip (1115) abutted to the fixed lug (21) is arc-shaped.

7. A small reduction gearbox according to claim 1, characterised in that said rotating carriages (11) are circumferentially distributed centred on said driving motor (2).

8. The small reduction gearbox according to claim 1, wherein the box body (1) is arc-shaped, an accommodating cavity for mounting the reduction gear set (4) is formed in the box body (1), a cover plate (3) is arranged at an opening of the accommodating cavity, a buckle (31) is arranged at the edge of the cover plate (3), a clamping block (13) matched with the buckle (31) is arranged on the outer surface of the box body (1), and the buckle (31) is buckled on the clamping block (13) to enable the cover plate (3) to be fixed at the opening of the accommodating cavity.

9. The small reduction gearbox according to claim 8, wherein two ends of the box body (1) are respectively provided with a driving motor (2), the driving motors (2) are arranged on the back of the box body (1), a through hole (12) is formed in the bottom of the box body (1) corresponding to the driving motors (2), the shaft of the driving motor (2) is connected with the reduction gear set (4) of the box body (1) through the through hole (12), two driving motor mounting positions are correspondingly arranged on the back of the box body (1), and each driving motor mounting position comprises two rotating brackets (11) which are distributed circumferentially.